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[aot] Only emit instances when using full aot.
[mono-project.git] / mono / mini / aot-compiler.c
blob3c626c2de1c5d646567312e91394ea6735afa21e
1 /*
2 * aot-compiler.c: mono Ahead of Time compiler
3 *
4 * Author:
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
7 * Johan Lorensson (lateralusx.github@gmail.com)
8 *
9 * (C) 2002 Ximian, Inc.
10 * Copyright 2003-2011 Novell, Inc
11 * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
13 */
14
15 #include "config.h"
16 #include <sys/types.h>
17 #ifdef HAVE_UNISTD_H
18 #include <unistd.h>
19 #endif
20 #ifdef HAVE_STDINT_H
21 #include <stdint.h>
22 #endif
23 #include <fcntl.h>
24 #include <ctype.h>
25 #include <string.h>
26 #ifndef HOST_WIN32
27 #include <sys/time.h>
28 #else
29 #include <winsock2.h>
30 #include <windows.h>
31 #endif
32
33 #include <errno.h>
34 #include <sys/stat.h>
35
36 #include <mono/metadata/abi-details.h>
37 #include <mono/metadata/tabledefs.h>
38 #include <mono/metadata/class.h>
39 #include <mono/metadata/object.h>
40 #include <mono/metadata/tokentype.h>
41 #include <mono/metadata/appdomain.h>
42 #include <mono/metadata/debug-helpers.h>
43 #include <mono/metadata/assembly.h>
44 #include <mono/metadata/metadata-internals.h>
45 #include <mono/metadata/reflection-internals.h>
46 #include <mono/metadata/marshal.h>
47 #include <mono/metadata/gc-internals.h>
48 #include <mono/metadata/mempool-internals.h>
49 #include <mono/metadata/mono-endian.h>
50 #include <mono/metadata/threads-types.h>
51 #include <mono/utils/mono-logger-internals.h>
52 #include <mono/utils/mono-compiler.h>
53 #include <mono/utils/mono-time.h>
54 #include <mono/utils/mono-mmap.h>
55 #include <mono/utils/mono-rand.h>
56 #include <mono/utils/json.h>
57 #include <mono/utils/mono-threads-coop.h>
58
59 #include "aot-compiler.h"
60 #include "seq-points.h"
61 #include "image-writer.h"
62 #include "dwarfwriter.h"
63 #include "mini-gc.h"
64 #include "mini-llvm.h"
65
66 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
67
68 // Use MSVC toolchain, Clang for MSVC using MSVC codegen and linker, when compiling for AMD64
69 // targeting WIN32 platforms running AOT compiler on WIN32 platform with VS installation.
70 #if defined(TARGET_AMD64) && defined(TARGET_WIN32) && defined(HOST_WIN32) && defined(_MSC_VER)
71 #define TARGET_X86_64_WIN32_MSVC
72 #endif
73
74 #if defined(TARGET_X86_64_WIN32_MSVC)
75 #define TARGET_WIN32_MSVC
76 #endif
77
78 #if defined(__linux__) || defined(__native_client_codegen__)
79 #define RODATA_SECT ".rodata"
80 #elif defined(TARGET_MACH)
81 #define RODATA_SECT ".section __TEXT, __const"
82 #elif defined(TARGET_WIN32_MSVC)
83 #define RODATA_SECT ".rdata"
84 #else
85 #define RODATA_SECT ".text"
86 #endif
87
88 #define TV_DECLARE(name) gint64 name
89 #define TV_GETTIME(tv) tv = mono_100ns_ticks ()
90 #define TV_ELAPSED(start,end) (((end) - (start)) / 10)
91
92 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
93 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
94 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
95
96 /* predefined values for static readonly fields without needed to run the .cctor */
97 typedef struct _ReadOnlyValue ReadOnlyValue;
98 struct _ReadOnlyValue {
99 ReadOnlyValue *next;
100 char *name;
101 int type; /* to be used later for typechecking to prevent user errors */
102 union {
103 guint8 i1;
104 guint16 i2;
105 guint32 i4;
106 guint64 i8;
107 gpointer ptr;
108 } value;
109 };
110 static ReadOnlyValue *readonly_values;
111
112 typedef struct MonoAotOptions {
113 char *outfile;
114 char *llvm_outfile;
115 char *data_outfile;
116 gboolean save_temps;
117 gboolean write_symbols;
118 gboolean metadata_only;
119 gboolean bind_to_runtime_version;
120 MonoAotMode mode;
121 gboolean no_dlsym;
122 gboolean static_link;
123 gboolean asm_only;
124 gboolean asm_writer;
125 gboolean nodebug;
126 gboolean dwarf_debug;
127 gboolean soft_debug;
128 gboolean log_generics;
129 gboolean log_instances;
130 gboolean gen_msym_dir;
131 char *gen_msym_dir_path;
132 gboolean direct_pinvoke;
133 gboolean direct_icalls;
134 gboolean no_direct_calls;
135 gboolean use_trampolines_page;
136 gboolean no_instances;
137 gboolean gnu_asm;
138 gboolean llvm;
139 gboolean llvm_only;
140 int nthreads;
141 int ntrampolines;
142 int nrgctx_trampolines;
143 int nimt_trampolines;
144 int ngsharedvt_arg_trampolines;
145 int nrgctx_fetch_trampolines;
146 gboolean print_skipped_methods;
147 gboolean stats;
148 char *tool_prefix;
149 char *ld_flags;
150 char *mtriple;
151 char *llvm_path;
152 char *temp_path;
153 char *instances_logfile_path;
154 char *logfile;
155 gboolean dump_json;
156 } MonoAotOptions;
157
158 typedef enum {
159 METHOD_CAT_NORMAL,
160 METHOD_CAT_GSHAREDVT,
161 METHOD_CAT_INST,
162 METHOD_CAT_WRAPPER,
163 METHOD_CAT_NUM
164 } MethodCategory;
165
166 typedef struct MonoAotStats {
167 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
168 gint64 code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size, plt_size;
169 int methods_without_got_slots, direct_calls, all_calls, llvm_count;
170 int got_slots, offsets_size;
171 int method_categories [METHOD_CAT_NUM];
172 int got_slot_types [MONO_PATCH_INFO_NUM];
173 int got_slot_info_sizes [MONO_PATCH_INFO_NUM];
174 int jit_time, gen_time, link_time;
175 } MonoAotStats;
176
177 typedef struct GotInfo {
178 GHashTable *patch_to_got_offset;
179 GHashTable **patch_to_got_offset_by_type;
180 GPtrArray *got_patches;
181 } GotInfo;
182
183 typedef struct MonoAotCompile {
184 MonoImage *image;
185 GPtrArray *methods;
186 GHashTable *method_indexes;
187 GHashTable *method_depth;
188 MonoCompile **cfgs;
189 int cfgs_size;
190 GHashTable **patch_to_plt_entry;
191 GHashTable *plt_offset_to_entry;
192 //GHashTable *patch_to_got_offset;
193 //GHashTable **patch_to_got_offset_by_type;
194 //GPtrArray *got_patches;
195 GotInfo got_info, llvm_got_info;
196 GHashTable *image_hash;
197 GHashTable *method_to_cfg;
198 GHashTable *token_info_hash;
199 GHashTable *method_to_pinvoke_import;
200 GPtrArray *extra_methods;
201 GPtrArray *image_table;
202 GPtrArray *globals;
203 GPtrArray *method_order;
204 GHashTable *export_names;
205 /* Maps MonoClass* -> blob offset */
206 GHashTable *klass_blob_hash;
207 /* Maps MonoMethod* -> blob offset */
208 GHashTable *method_blob_hash;
209 GHashTable *gsharedvt_in_signatures;
210 GHashTable *gsharedvt_out_signatures;
211 guint32 *plt_got_info_offsets;
212 guint32 got_offset, llvm_got_offset, plt_offset, plt_got_offset_base, nshared_got_entries;
213 /* Number of GOT entries reserved for trampolines */
214 guint32 num_trampoline_got_entries;
215 guint32 tramp_page_size;
216
217 guint32 table_offsets [MONO_AOT_TABLE_NUM];
218 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
219 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
220 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
221 guint32 tramp_page_code_offsets [MONO_AOT_TRAMP_NUM];
222
223 MonoAotOptions aot_opts;
224 guint32 nmethods;
225 guint32 opts;
226 guint32 simd_opts;
227 MonoMemPool *mempool;
228 MonoAotStats stats;
229 int method_index;
230 char *static_linking_symbol;
231 mono_mutex_t mutex;
232 gboolean gas_line_numbers;
233 /* Whenever to emit an object file directly from llc */
234 gboolean llvm_owriter;
235 gboolean llvm_owriter_supported;
236 MonoImageWriter *w;
237 MonoDwarfWriter *dwarf;
238 FILE *fp;
239 char *tmpbasename;
240 char *tmpfname;
241 char *llvm_sfile;
242 char *llvm_ofile;
243 GSList *cie_program;
244 GHashTable *unwind_info_offsets;
245 GPtrArray *unwind_ops;
246 guint32 unwind_info_offset;
247 char *global_prefix;
248 char *got_symbol;
249 char *llvm_got_symbol;
250 char *plt_symbol;
251 char *llvm_eh_frame_symbol;
252 GHashTable *method_label_hash;
253 const char *temp_prefix;
254 const char *user_symbol_prefix;
255 const char *llvm_label_prefix;
256 const char *inst_directive;
257 int align_pad_value;
258 guint32 label_generator;
259 gboolean llvm;
260 gboolean has_jitted_code;
261 MonoAotFileFlags flags;
262 MonoDynamicStream blob;
263 gboolean blob_closed;
264 GHashTable *typespec_classes;
265 GString *llc_args;
266 GString *as_args;
267 char *assembly_name_sym;
268 GHashTable *plt_entry_debug_sym_cache;
269 gboolean thumb_mixed, need_no_dead_strip, need_pt_gnu_stack;
270 GHashTable *ginst_hash;
271 GHashTable *dwarf_ln_filenames;
272 gboolean global_symbols;
273 int objc_selector_index, objc_selector_index_2;
274 GPtrArray *objc_selectors;
275 GHashTable *objc_selector_to_index;
276 FILE *logfile;
277 FILE *instances_logfile;
278 FILE *data_outfile;
279 int datafile_offset;
280 int gc_name_offset;
281 } MonoAotCompile;
282
283 typedef struct {
284 int plt_offset;
285 char *symbol, *llvm_symbol, *debug_sym;
286 MonoJumpInfo *ji;
287 gboolean jit_used, llvm_used;
288 } MonoPltEntry;
289
290 #define mono_acfg_lock(acfg) mono_os_mutex_lock (&((acfg)->mutex))
291 #define mono_acfg_unlock(acfg) mono_os_mutex_unlock (&((acfg)->mutex))
292
293 /* This points to the current acfg in LLVM mode */
294 static MonoAotCompile *llvm_acfg;
295
296 #ifdef HAVE_ARRAY_ELEM_INIT
297 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
298 #define MSGSTRFIELD1(line) str##line
299 static const struct msgstr_t {
300 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
301 #include "patch-info.h"
302 #undef PATCH_INFO
303 } opstr = {
304 #define PATCH_INFO(a,b) b,
305 #include "patch-info.h"
306 #undef PATCH_INFO
307 };
308 static const gint16 opidx [] = {
309 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
310 #include "patch-info.h"
311 #undef PATCH_INFO
312 };
313
314 static G_GNUC_UNUSED const char*
315 get_patch_name (int info)
316 {
317 return (const char*)&opstr + opidx [info];
318 }
319
320 #else
321 #define PATCH_INFO(a,b) b,
322 static const char* const
323 patch_types [MONO_PATCH_INFO_NUM + 1] = {
324 #include "patch-info.h"
325 NULL
326 };
327
328 static G_GNUC_UNUSED const char*
329 get_patch_name (int info)
330 {
331 return patch_types [info];
332 }
333
334 #endif
335
336 static guint32
337 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len);
338
339 static char*
340 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache);
341
342 static void
343 add_gsharedvt_wrappers (MonoAotCompile *acfg, MonoMethodSignature *sig, gboolean gsharedvt_in, gboolean gsharedvt_out);
344
345 static void
346 aot_printf (MonoAotCompile *acfg, const gchar *format, ...)
347 {
348 FILE *output;
349 va_list args;
350
351 if (acfg->logfile)
352 output = acfg->logfile;
353 else
354 output = stdout;
355
356 va_start (args, format);
357 vfprintf (output, format, args);
358 va_end (args);
359 }
360
361 static void
362 aot_printerrf (MonoAotCompile *acfg, const gchar *format, ...)
363 {
364 FILE *output;
365 va_list args;
366
367 if (acfg->logfile)
368 output = acfg->logfile;
369 else
370 output = stderr;
371
372 va_start (args, format);
373 vfprintf (output, format, args);
374 va_end (args);
375 }
376
377 static void
378 report_loader_error (MonoAotCompile *acfg, MonoError *error, const char *format, ...)
379 {
380 FILE *output;
381 va_list args;
382
383 if (mono_error_ok (error))
384 return;
385
386 if (acfg->logfile)
387 output = acfg->logfile;
388 else
389 output = stderr;
390
391 va_start (args, format);
392 vfprintf (output, format, args);
393 va_end (args);
394 mono_error_cleanup (error);
395
396 g_error ("FullAOT cannot continue if there are loader errors");
397 }
398
399 /* Wrappers around the image writer functions */
400
401 #define MAX_SYMBOL_SIZE 256
402
403 static inline const char *
404 mangle_symbol (const char * symbol, char * mangled_symbol, gsize length)
405 {
406 gsize needed_size = length;
407
408 g_assert (NULL != symbol);
409 g_assert (NULL != mangled_symbol);
410 g_assert (0 != length);
411
412 #if defined(TARGET_WIN32) && defined(TARGET_X86)
413 if (symbol && '_' != symbol [0]) {
414 needed_size = g_snprintf (mangled_symbol, length, "_%s", symbol);
415 } else {
416 needed_size = g_snprintf (mangled_symbol, length, "%s", symbol);
417 }
418 #else
419 needed_size = g_snprintf (mangled_symbol, length, "%s", symbol);
420 #endif
421
422 g_assert (0 <= needed_size && needed_size < length);
423 return mangled_symbol;
424 }
425
426 static inline char *
427 mangle_symbol_alloc (const char * symbol)
428 {
429 g_assert (NULL != symbol);
430
431 #if defined(TARGET_WIN32) && defined(TARGET_X86)
432 if (symbol && '_' != symbol [0]) {
433 return g_strdup_printf ("_%s", symbol);
434 }
435 else {
436 return g_strdup_printf ("%s", symbol);
437 }
438 #else
439 return g_strdup_printf ("%s", symbol);
440 #endif
441 }
442
443 static inline void
444 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
445 {
446 mono_img_writer_emit_section_change (acfg->w, section_name, subsection_index);
447 }
448
449 #if defined(TARGET_WIN32) && defined(TARGET_X86)
450
451 static inline void
452 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
453 {
454 const char * mangled_symbol_name = name;
455 char * mangled_symbol_name_alloc = NULL;
456
457 if (TRUE == func) {
458 mangled_symbol_name_alloc = mangle_symbol_alloc (name);
459 mangled_symbol_name = mangled_symbol_name_alloc;
460 }
461
462 if (name != mangled_symbol_name && 0 != g_strcasecmp (name, mangled_symbol_name)) {
463 mono_img_writer_emit_label (acfg->w, mangled_symbol_name);
464 }
465 mono_img_writer_emit_local_symbol (acfg->w, mangled_symbol_name, end_label, func);
466
467 if (NULL != mangled_symbol_name_alloc) {
468 g_free (mangled_symbol_name_alloc);
469 }
470 }
471
472 #else
473
474 static inline void
475 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
476 {
477 mono_img_writer_emit_local_symbol (acfg->w, name, end_label, func);
478 }
479
480 #endif
481
482 static inline void
483 emit_label (MonoAotCompile *acfg, const char *name)
484 {
485 mono_img_writer_emit_label (acfg->w, name);
486 }
487
488 static inline void
489 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
490 {
491 mono_img_writer_emit_bytes (acfg->w, buf, size);
492 }
493
494 static inline void
495 emit_string (MonoAotCompile *acfg, const char *value)
496 {
497 mono_img_writer_emit_string (acfg->w, value);
498 }
499
500 static inline void
501 emit_line (MonoAotCompile *acfg)
502 {
503 mono_img_writer_emit_line (acfg->w);
504 }
505
506 static inline void
507 emit_alignment (MonoAotCompile *acfg, int size)
508 {
509 mono_img_writer_emit_alignment (acfg->w, size);
510 }
511
512 static inline void
513 emit_alignment_code (MonoAotCompile *acfg, int size)
514 {
515 if (acfg->align_pad_value)
516 mono_img_writer_emit_alignment_fill (acfg->w, size, acfg->align_pad_value);
517 else
518 mono_img_writer_emit_alignment (acfg->w, size);
519 }
520
521 static inline void
522 emit_padding (MonoAotCompile *acfg, int size)
523 {
524 int i;
525 guint8 buf [16];
526
527 if (acfg->align_pad_value) {
528 for (i = 0; i < 16; ++i)
529 buf [i] = acfg->align_pad_value;
530 } else {
531 memset (buf, 0, sizeof (buf));
532 }
533
534 for (i = 0; i < size; i += 16) {
535 if (size - i < 16)
536 emit_bytes (acfg, buf, size - i);
537 else
538 emit_bytes (acfg, buf, 16);
539 }
540 }
541
542 static inline void
543 emit_pointer (MonoAotCompile *acfg, const char *target)
544 {
545 mono_img_writer_emit_pointer (acfg->w, target);
546 }
547
548 static inline void
549 emit_pointer_2 (MonoAotCompile *acfg, const char *prefix, const char *target)
550 {
551 if (prefix [0] != '\0') {
552 char *s = g_strdup_printf ("%s%s", prefix, target);
553 mono_img_writer_emit_pointer (acfg->w, s);
554 g_free (s);
555 } else {
556 mono_img_writer_emit_pointer (acfg->w, target);
557 }
558 }
559
560 static inline void
561 emit_int16 (MonoAotCompile *acfg, int value)
562 {
563 mono_img_writer_emit_int16 (acfg->w, value);
564 }
565
566 static inline void
567 emit_int32 (MonoAotCompile *acfg, int value)
568 {
569 mono_img_writer_emit_int32 (acfg->w, value);
570 }
571
572 static inline void
573 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
574 {
575 mono_img_writer_emit_symbol_diff (acfg->w, end, start, offset);
576 }
577
578 static inline void
579 emit_zero_bytes (MonoAotCompile *acfg, int num)
580 {
581 mono_img_writer_emit_zero_bytes (acfg->w, num);
582 }
583
584 static inline void
585 emit_byte (MonoAotCompile *acfg, guint8 val)
586 {
587 mono_img_writer_emit_byte (acfg->w, val);
588 }
589
590 #if defined(TARGET_WIN32) && defined(TARGET_X86)
591
592 static G_GNUC_UNUSED void
593 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
594 {
595 const char * mangled_symbol_name = name;
596 char * mangled_symbol_name_alloc = NULL;
597
598 mangled_symbol_name_alloc = mangle_symbol_alloc (name);
599 mangled_symbol_name = mangled_symbol_name_alloc;
600
601 if (0 != g_strcasecmp (name, mangled_symbol_name)) {
602 mono_img_writer_emit_label (acfg->w, mangled_symbol_name);
603 }
604 mono_img_writer_emit_global (acfg->w, mangled_symbol_name, func);
605
606 if (NULL != mangled_symbol_name_alloc) {
607 g_free (mangled_symbol_name_alloc);
608 }
609 }
610
611 #else
612
613 static G_GNUC_UNUSED void
614 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
615 {
616 mono_img_writer_emit_global (acfg->w, name, func);
617 }
618
619 #endif
620
621 static inline gboolean
622 link_shared_library (MonoAotCompile *acfg)
623 {
624 return !acfg->aot_opts.static_link && !acfg->aot_opts.asm_only;
625 }
626
627 static inline gboolean
628 add_to_global_symbol_table (MonoAotCompile *acfg)
629 {
630 #ifdef TARGET_WIN32_MSVC
631 return acfg->aot_opts.no_dlsym || link_shared_library (acfg);
632 #else
633 return acfg->aot_opts.no_dlsym;
634 #endif
635 }
636
637 static void
638 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
639 {
640 if (add_to_global_symbol_table (acfg))
641 g_ptr_array_add (acfg->globals, g_strdup (name));
642
643 if (acfg->aot_opts.no_dlsym) {
644 mono_img_writer_emit_local_symbol (acfg->w, name, NULL, func);
645 } else {
646 emit_global_inner (acfg, name, func);
647 }
648 }
649
650 static void
651 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
652 {
653 mono_img_writer_emit_symbol_size (acfg->w, name, end_label);
654 }
655
656 /* Emit a symbol which is referenced by the MonoAotFileInfo structure */
657 static void
658 emit_info_symbol (MonoAotCompile *acfg, const char *name)
659 {
660 char symbol [MAX_SYMBOL_SIZE];
661
662 if (acfg->llvm) {
663 emit_label (acfg, name);
664 /* LLVM generated code references this */
665 sprintf (symbol, "%s%s%s", acfg->user_symbol_prefix, acfg->global_prefix, name);
666 emit_label (acfg, symbol);
667 emit_global_inner (acfg, symbol, FALSE);
668 } else {
669 emit_label (acfg, name);
670 }
671 }
672
673 static void
674 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
675 {
676 if (acfg->llvm) {
677 mono_llvm_emit_aot_data (name, (guint8*)value, strlen (value) + 1);
678 return;
679 }
680
681 mono_img_writer_emit_section_change (acfg->w, RODATA_SECT, 1);
682 #ifdef TARGET_MACH
683 /* On apple, all symbols need to be aligned to avoid warnings from ld */
684 emit_alignment (acfg, 4);
685 #endif
686 mono_img_writer_emit_label (acfg->w, name);
687 mono_img_writer_emit_string (acfg->w, value);
688 }
689
690 static G_GNUC_UNUSED void
691 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
692 {
693 do {
694 guint8 b = value & 0x7f;
695 value >>= 7;
696 if (value != 0) /* more bytes to come */
697 b |= 0x80;
698 emit_byte (acfg, b);
699 } while (value);
700 }
701
702 static G_GNUC_UNUSED void
703 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
704 {
705 gboolean more = 1;
706 gboolean negative = (value < 0);
707 guint32 size = 64;
708 guint8 byte;
709
710 while (more) {
711 byte = value & 0x7f;
712 value >>= 7;
713 /* the following is unnecessary if the
714 * implementation of >>= uses an arithmetic rather
715 * than logical shift for a signed left operand
716 */
717 if (negative)
718 /* sign extend */
719 value |= - ((gint64)1 <<(size - 7));
720 /* sign bit of byte is second high order bit (0x40) */
721 if ((value == 0 && !(byte & 0x40)) ||
722 (value == -1 && (byte & 0x40)))
723 more = 0;
724 else
725 byte |= 0x80;
726 emit_byte (acfg, byte);
727 }
728 }
729
730 static G_GNUC_UNUSED void
731 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
732 {
733 guint8 *p = buf;
734
735 do {
736 guint8 b = value & 0x7f;
737 value >>= 7;
738 if (value != 0) /* more bytes to come */
739 b |= 0x80;
740 *p ++ = b;
741 } while (value);
742
743 *endbuf = p;
744 }
745
746 static G_GNUC_UNUSED void
747 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
748 {
749 gboolean more = 1;
750 gboolean negative = (value < 0);
751 guint32 size = 32;
752 guint8 byte;
753 guint8 *p = buf;
754
755 while (more) {
756 byte = value & 0x7f;
757 value >>= 7;
758 /* the following is unnecessary if the
759 * implementation of >>= uses an arithmetic rather
760 * than logical shift for a signed left operand
761 */
762 if (negative)
763 /* sign extend */
764 value |= - (1 <<(size - 7));
765 /* sign bit of byte is second high order bit (0x40) */
766 if ((value == 0 && !(byte & 0x40)) ||
767 (value == -1 && (byte & 0x40)))
768 more = 0;
769 else
770 byte |= 0x80;
771 *p ++= byte;
772 }
773
774 *endbuf = p;
775 }
776
777 static void
778 encode_int (gint32 val, guint8 *buf, guint8 **endbuf)
779 {
780 // FIXME: Big-endian
781 buf [0] = (val >> 0) & 0xff;
782 buf [1] = (val >> 8) & 0xff;
783 buf [2] = (val >> 16) & 0xff;
784 buf [3] = (val >> 24) & 0xff;
785
786 *endbuf = buf + 4;
787 }
788
789 static void
790 encode_int16 (guint16 val, guint8 *buf, guint8 **endbuf)
791 {
792 buf [0] = (val >> 0) & 0xff;
793 buf [1] = (val >> 8) & 0xff;
794
795 *endbuf = buf + 2;
796 }
797
798 static void
799 encode_string (const char *s, guint8 *buf, guint8 **endbuf)
800 {
801 int len = strlen (s);
802
803 memcpy (buf, s, len + 1);
804 *endbuf = buf + len + 1;
805 }
806
807 static void
808 emit_unset_mode (MonoAotCompile *acfg)
809 {
810 mono_img_writer_emit_unset_mode (acfg->w);
811 }
812
813 static G_GNUC_UNUSED void
814 emit_set_thumb_mode (MonoAotCompile *acfg)
815 {
816 emit_unset_mode (acfg);
817 fprintf (acfg->fp, ".code 16\n");
818 }
819
820 static G_GNUC_UNUSED void
821 emit_set_arm_mode (MonoAotCompile *acfg)
822 {
823 emit_unset_mode (acfg);
824 fprintf (acfg->fp, ".code 32\n");
825 }
826
827 static inline void
828 emit_code_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
829 {
830 #ifdef TARGET_ARM64
831 int i;
832
833 g_assert (size % 4 == 0);
834 emit_unset_mode (acfg);
835 for (i = 0; i < size; i += 4)
836 fprintf (acfg->fp, "%s 0x%x\n", acfg->inst_directive, *(guint32*)(buf + i));
837 #else
838 emit_bytes (acfg, buf, size);
839 #endif
840 }
841
842 /* ARCHITECTURE SPECIFIC CODE */
843
844 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC) || defined(TARGET_ARM64)
845 #define EMIT_DWARF_INFO 1
846 #endif
847
848 #ifdef TARGET_WIN32_MSVC
849 #undef EMIT_DWARF_INFO
850 #endif
851
852 #if defined(TARGET_ARM)
853 #define AOT_FUNC_ALIGNMENT 4
854 #else
855 #define AOT_FUNC_ALIGNMENT 16
856 #endif
857
858 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
859 #define PPC_LD_OP "ld"
860 #define PPC_LDX_OP "ldx"
861 #else
862 #define PPC_LD_OP "lwz"
863 #define PPC_LDX_OP "lwzx"
864 #endif
865
866 #ifdef TARGET_X86_64_WIN32_MSVC
867 #define AOT_TARGET_STR "AMD64 (WIN32) (MSVC codegen)"
868 #elif TARGET_AMD64
869 #define AOT_TARGET_STR "AMD64"
870 #endif
871
872 #ifdef TARGET_ARM
873 #ifdef TARGET_MACH
874 #define AOT_TARGET_STR "ARM (MACH)"
875 #else
876 #define AOT_TARGET_STR "ARM (!MACH)"
877 #endif
878 #endif
879
880 #ifdef TARGET_ARM64
881 #ifdef TARGET_MACH
882 #define AOT_TARGET_STR "ARM64 (MACH)"
883 #else
884 #define AOT_TARGET_STR "ARM64 (!MACH)"
885 #endif
886 #endif
887
888 #ifdef TARGET_POWERPC64
889 #ifdef __mono_ilp32__
890 #define AOT_TARGET_STR "POWERPC64 (mono ilp32)"
891 #else
892 #define AOT_TARGET_STR "POWERPC64 (!mono ilp32)"
893 #endif
894 #else
895 #ifdef TARGET_POWERPC
896 #ifdef __mono_ilp32__
897 #define AOT_TARGET_STR "POWERPC (mono ilp32)"
898 #else
899 #define AOT_TARGET_STR "POWERPC (!mono ilp32)"
900 #endif
901 #endif
902 #endif
903
904 #ifdef TARGET_X86
905 #ifdef TARGET_WIN32
906 #define AOT_TARGET_STR "X86 (WIN32)"
907 #elif defined(__native_client_codegen__)
908 #define AOT_TARGET_STR "X86 (native client codegen)"
909 #else
910 #define AOT_TARGET_STR "X86 (!native client codegen)"
911 #endif
912 #endif
913
914 #ifndef AOT_TARGET_STR
915 #define AOT_TARGET_STR ""
916 #endif
917
918 static void
919 arch_init (MonoAotCompile *acfg)
920 {
921 acfg->llc_args = g_string_new ("");
922 acfg->as_args = g_string_new ("");
923 acfg->llvm_owriter_supported = TRUE;
924
925 /*
926 * The prefix LLVM likes to put in front of symbol names on darwin.
927 * The mach-os specs require this for globals, but LLVM puts them in front of all
928 * symbols. We need to handle this, since we need to refer to LLVM generated
929 * symbols.
930 */
931 acfg->llvm_label_prefix = "";
932 acfg->user_symbol_prefix = "";
933
934 #if defined(TARGET_X86)
935 g_string_append (acfg->llc_args, " -march=x86 -mattr=sse4.1");
936 #endif
937
938 #if defined(TARGET_AMD64)
939 g_string_append (acfg->llc_args, " -march=x86-64 -mattr=sse4.1");
940 /* NOP */
941 acfg->align_pad_value = 0x90;
942 #endif
943
944 #ifdef TARGET_ARM
945 if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "darwin")) {
946 g_string_append (acfg->llc_args, "-mattr=+v6");
947 } else {
948 #if defined(ARM_FPU_VFP_HARD)
949 g_string_append (acfg->llc_args, " -mattr=+vfp2,-neon,+d16 -float-abi=hard");
950 g_string_append (acfg->as_args, " -mfpu=vfp3");
951 #elif defined(ARM_FPU_VFP)
952 g_string_append (acfg->llc_args, " -mattr=+vfp2,-neon,+d16");
953 g_string_append (acfg->as_args, " -mfpu=vfp3");
954 #else
955 g_string_append (acfg->llc_args, " -soft-float");
956 #endif
957 }
958 if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "thumb"))
959 acfg->thumb_mixed = TRUE;
960
961 if (acfg->aot_opts.mtriple)
962 mono_arch_set_target (acfg->aot_opts.mtriple);
963 #endif
964
965 #ifdef TARGET_ARM64
966 acfg->inst_directive = ".inst";
967 if (acfg->aot_opts.mtriple)
968 mono_arch_set_target (acfg->aot_opts.mtriple);
969 #endif
970
971 #ifdef TARGET_MACH
972 acfg->user_symbol_prefix = "_";
973 acfg->llvm_label_prefix = "_";
974 acfg->inst_directive = ".word";
975 acfg->need_no_dead_strip = TRUE;
976 acfg->aot_opts.gnu_asm = TRUE;
977 #endif
978
979 #if defined(__linux__) && !defined(TARGET_ARM)
980 acfg->need_pt_gnu_stack = TRUE;
981 #endif
982
983 #ifdef MONOTOUCH
984 acfg->global_symbols = TRUE;
985 #endif
986
987 #ifdef TARGET_ANDROID
988 acfg->llvm_owriter_supported = FALSE;
989 #endif
990 }
991
992 #ifdef TARGET_ARM64
993
994
995 /* Load the contents of GOT_SLOT into dreg, clobbering ip0 */
996 static void
997 arm64_emit_load_got_slot (MonoAotCompile *acfg, int dreg, int got_slot)
998 {
999 int offset;
1000
1001 g_assert (acfg->fp);
1002 emit_unset_mode (acfg);
1003 /* r16==ip0 */
1004 offset = (int)(got_slot * sizeof (gpointer));
1005 #ifdef TARGET_MACH
1006 /* clang's integrated assembler */
1007 fprintf (acfg->fp, "adrp x16, %s@PAGE+%d\n", acfg->got_symbol, offset & 0xfffff000);
1008 fprintf (acfg->fp, "add x16, x16, %s@PAGEOFF\n", acfg->got_symbol);
1009 fprintf (acfg->fp, "ldr x%d, [x16, #%d]\n", dreg, offset & 0xfff);
1010 #else
1011 /* Linux GAS */
1012 fprintf (acfg->fp, "adrp x16, %s+%d\n", acfg->got_symbol, offset & 0xfffff000);
1013 fprintf (acfg->fp, "add x16, x16, :lo12:%s\n", acfg->got_symbol);
1014 fprintf (acfg->fp, "ldr x%d, [x16, %d]\n", dreg, offset & 0xfff);
1015 #endif
1016 }
1017
1018 static void
1019 arm64_emit_objc_selector_ref (MonoAotCompile *acfg, guint8 *code, int index, int *code_size)
1020 {
1021 int reg;
1022
1023 g_assert (acfg->fp);
1024 emit_unset_mode (acfg);
1025
1026 /* ldr rt, target */
1027 reg = arm_get_ldr_lit_reg (code);
1028
1029 fprintf (acfg->fp, "adrp x%d, L_OBJC_SELECTOR_REFERENCES_%d@PAGE\n", reg, index);
1030 fprintf (acfg->fp, "add x%d, x%d, L_OBJC_SELECTOR_REFERENCES_%d@PAGEOFF\n", reg, reg, index);
1031 fprintf (acfg->fp, "ldr x%d, [x%d]\n", reg, reg);
1032
1033 *code_size = 12;
1034 }
1035
1036 static void
1037 arm64_emit_direct_call (MonoAotCompile *acfg, const char *target, gboolean external, gboolean thumb, MonoJumpInfo *ji, int *call_size)
1038 {
1039 g_assert (acfg->fp);
1040 emit_unset_mode (acfg);
1041 if (ji && ji->relocation == MONO_R_ARM64_B) {
1042 fprintf (acfg->fp, "b %s\n", target);
1043 } else {
1044 if (ji)
1045 g_assert (ji->relocation == MONO_R_ARM64_BL);
1046 fprintf (acfg->fp, "bl %s\n", target);
1047 }
1048 *call_size = 4;
1049 }
1050
1051 static void
1052 arm64_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
1053 {
1054 int reg;
1055
1056 /* ldr rt, target */
1057 reg = arm_get_ldr_lit_reg (code);
1058 arm64_emit_load_got_slot (acfg, reg, got_slot);
1059 *code_size = 12;
1060 }
1061
1062 static void
1063 arm64_emit_plt_entry (MonoAotCompile *acfg, const char *got_symbol, int offset, int info_offset)
1064 {
1065 arm64_emit_load_got_slot (acfg, ARMREG_R16, offset / sizeof (gpointer));
1066 fprintf (acfg->fp, "br x16\n");
1067 /* Used by mono_aot_get_plt_info_offset () */
1068 fprintf (acfg->fp, "%s %d\n", acfg->inst_directive, info_offset);
1069 }
1070
1071 static void
1072 arm64_emit_tramp_page_common_code (MonoAotCompile *acfg, int pagesize, int arg_reg, int *size)
1073 {
1074 guint8 buf [256];
1075 guint8 *code;
1076 int imm;
1077
1078 /* The common code */
1079 code = buf;
1080 imm = pagesize;
1081 /* The trampoline address is in IP0 */
1082 arm_movzx (code, ARMREG_IP1, imm & 0xffff, 0);
1083 arm_movkx (code, ARMREG_IP1, (imm >> 16) & 0xffff, 16);
1084 /* Compute the data slot address */
1085 arm_subx (code, ARMREG_IP0, ARMREG_IP0, ARMREG_IP1);
1086 /* Trampoline argument */
1087 arm_ldrx (code, arg_reg, ARMREG_IP0, 0);
1088 /* Address */
1089 arm_ldrx (code, ARMREG_IP0, ARMREG_IP0, 8);
1090 arm_brx (code, ARMREG_IP0);
1091
1092 /* Emit it */
1093 emit_code_bytes (acfg, buf, code - buf);
1094
1095 *size = code - buf;
1096 }
1097
1098 static void
1099 arm64_emit_tramp_page_specific_code (MonoAotCompile *acfg, int pagesize, int common_tramp_size, int specific_tramp_size)
1100 {
1101 guint8 buf [256];
1102 guint8 *code;
1103 int i, count;
1104
1105 count = (pagesize - common_tramp_size) / specific_tramp_size;
1106 for (i = 0; i < count; ++i) {
1107 code = buf;
1108 arm_adrx (code, ARMREG_IP0, code);
1109 /* Branch to the generic code */
1110 arm_b (code, code - 4 - (i * specific_tramp_size) - common_tramp_size);
1111 /* This has to be 2 pointers long */
1112 arm_nop (code);
1113 arm_nop (code);
1114 g_assert (code - buf == specific_tramp_size);
1115 emit_code_bytes (acfg, buf, code - buf);
1116 }
1117 }
1118
1119 static void
1120 arm64_emit_specific_trampoline_pages (MonoAotCompile *acfg)
1121 {
1122 guint8 buf [128];
1123 guint8 *code;
1124 guint8 *labels [16];
1125 int common_tramp_size;
1126 int specific_tramp_size = 2 * 8;
1127 int imm, pagesize;
1128 char symbol [128];
1129
1130 if (!acfg->aot_opts.use_trampolines_page)
1131 return;
1132
1133 #ifdef TARGET_MACH
1134 /* Have to match the target pagesize */
1135 pagesize = 16384;
1136 #else
1137 pagesize = mono_pagesize ();
1138 #endif
1139 acfg->tramp_page_size = pagesize;
1140
1141 /* The specific trampolines */
1142 sprintf (symbol, "%sspecific_trampolines_page", acfg->user_symbol_prefix);
1143 emit_alignment (acfg, pagesize);
1144 emit_global (acfg, symbol, TRUE);
1145 emit_label (acfg, symbol);
1146
1147 /* The common code */
1148 arm64_emit_tramp_page_common_code (acfg, pagesize, ARMREG_IP1, &common_tramp_size);
1149 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_SPECIFIC] = common_tramp_size;
1150
1151 arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size);
1152
1153 /* The rgctx trampolines */
1154 /* These are the same as the specific trampolines, but they load the argument into MONO_ARCH_RGCTX_REG */
1155 sprintf (symbol, "%srgctx_trampolines_page", acfg->user_symbol_prefix);
1156 emit_alignment (acfg, pagesize);
1157 emit_global (acfg, symbol, TRUE);
1158 emit_label (acfg, symbol);
1159
1160 /* The common code */
1161 arm64_emit_tramp_page_common_code (acfg, pagesize, MONO_ARCH_RGCTX_REG, &common_tramp_size);
1162 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_STATIC_RGCTX] = common_tramp_size;
1163
1164 arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size);
1165
1166 /* The gsharedvt arg trampolines */
1167 /* These are the same as the specific trampolines */
1168 sprintf (symbol, "%sgsharedvt_arg_trampolines_page", acfg->user_symbol_prefix);
1169 emit_alignment (acfg, pagesize);
1170 emit_global (acfg, symbol, TRUE);
1171 emit_label (acfg, symbol);
1172
1173 arm64_emit_tramp_page_common_code (acfg, pagesize, ARMREG_IP1, &common_tramp_size);
1174 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_GSHAREDVT_ARG] = common_tramp_size;
1175
1176 arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size);
1177
1178 /* The IMT trampolines */
1179 sprintf (symbol, "%simt_trampolines_page", acfg->user_symbol_prefix);
1180 emit_alignment (acfg, pagesize);
1181 emit_global (acfg, symbol, TRUE);
1182 emit_label (acfg, symbol);
1183
1184 code = buf;
1185 imm = pagesize;
1186 /* The trampoline address is in IP0 */
1187 arm_movzx (code, ARMREG_IP1, imm & 0xffff, 0);
1188 arm_movkx (code, ARMREG_IP1, (imm >> 16) & 0xffff, 16);
1189 /* Compute the data slot address */
1190 arm_subx (code, ARMREG_IP0, ARMREG_IP0, ARMREG_IP1);
1191 /* Trampoline argument */
1192 arm_ldrx (code, ARMREG_IP1, ARMREG_IP0, 0);
1193
1194 /* Same as arch_emit_imt_trampoline () */
1195 labels [0] = code;
1196 arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 0);
1197 arm_cmpx (code, ARMREG_IP0, MONO_ARCH_RGCTX_REG);
1198 labels [1] = code;
1199 arm_bcc (code, ARMCOND_EQ, 0);
1200
1201 /* End-of-loop check */
1202 labels [2] = code;
1203 arm_cbzx (code, ARMREG_IP0, 0);
1204
1205 /* Loop footer */
1206 arm_addx_imm (code, ARMREG_IP1, ARMREG_IP1, 2 * 8);
1207 arm_b (code, labels [0]);
1208
1209 /* Match */
1210 mono_arm_patch (labels [1], code, MONO_R_ARM64_BCC);
1211 /* Load vtable slot addr */
1212 arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8);
1213 /* Load vtable slot */
1214 arm_ldrx (code, ARMREG_IP0, ARMREG_IP0, 0);
1215 arm_brx (code, ARMREG_IP0);
1216
1217 /* No match */
1218 mono_arm_patch (labels [2], code, MONO_R_ARM64_CBZ);
1219 /* Load fail addr */
1220 arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8);
1221 arm_brx (code, ARMREG_IP0);
1222
1223 emit_code_bytes (acfg, buf, code - buf);
1224
1225 common_tramp_size = code - buf;
1226 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_IMT] = common_tramp_size;
1227
1228 arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size);
1229 }
1230
1231 static void
1232 arm64_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1233 {
1234 /* Load argument from second GOT slot */
1235 arm64_emit_load_got_slot (acfg, ARMREG_R17, offset + 1);
1236 /* Load generic trampoline address from first GOT slot */
1237 arm64_emit_load_got_slot (acfg, ARMREG_R16, offset);
1238 fprintf (acfg->fp, "br x16\n");
1239 *tramp_size = 7 * 4;
1240 }
1241
1242 static void
1243 arm64_emit_unbox_trampoline (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, const char *call_target)
1244 {
1245 emit_unset_mode (acfg);
1246 fprintf (acfg->fp, "add x0, x0, %d\n", (int)(sizeof (MonoObject)));
1247 fprintf (acfg->fp, "b %s\n", call_target);
1248 }
1249
1250 static void
1251 arm64_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1252 {
1253 /* Similar to the specific trampolines, but use the rgctx reg instead of ip1 */
1254
1255 /* Load argument from first GOT slot */
1256 arm64_emit_load_got_slot (acfg, MONO_ARCH_RGCTX_REG, offset);
1257 /* Load generic trampoline address from second GOT slot */
1258 arm64_emit_load_got_slot (acfg, ARMREG_R16, offset + 1);
1259 fprintf (acfg->fp, "br x16\n");
1260 *tramp_size = 7 * 4;
1261 }
1262
1263 static void
1264 arm64_emit_imt_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1265 {
1266 guint8 buf [128];
1267 guint8 *code, *labels [16];
1268
1269 /* Load parameter from GOT slot into ip1 */
1270 arm64_emit_load_got_slot (acfg, ARMREG_R17, offset);
1271
1272 code = buf;
1273 labels [0] = code;
1274 arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 0);
1275 arm_cmpx (code, ARMREG_IP0, MONO_ARCH_RGCTX_REG);
1276 labels [1] = code;
1277 arm_bcc (code, ARMCOND_EQ, 0);
1278
1279 /* End-of-loop check */
1280 labels [2] = code;
1281 arm_cbzx (code, ARMREG_IP0, 0);
1282
1283 /* Loop footer */
1284 arm_addx_imm (code, ARMREG_IP1, ARMREG_IP1, 2 * 8);
1285 arm_b (code, labels [0]);
1286
1287 /* Match */
1288 mono_arm_patch (labels [1], code, MONO_R_ARM64_BCC);
1289 /* Load vtable slot addr */
1290 arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8);
1291 /* Load vtable slot */
1292 arm_ldrx (code, ARMREG_IP0, ARMREG_IP0, 0);
1293 arm_brx (code, ARMREG_IP0);
1294
1295 /* No match */
1296 mono_arm_patch (labels [2], code, MONO_R_ARM64_CBZ);
1297 /* Load fail addr */
1298 arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8);
1299 arm_brx (code, ARMREG_IP0);
1300
1301 emit_code_bytes (acfg, buf, code - buf);
1302
1303 *tramp_size = code - buf + (3 * 4);
1304 }
1305
1306 static void
1307 arm64_emit_gsharedvt_arg_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1308 {
1309 /* Similar to the specific trampolines, but the address is in the second slot */
1310 /* Load argument from first GOT slot */
1311 arm64_emit_load_got_slot (acfg, ARMREG_R17, offset);
1312 /* Load generic trampoline address from second GOT slot */
1313 arm64_emit_load_got_slot (acfg, ARMREG_R16, offset + 1);
1314 fprintf (acfg->fp, "br x16\n");
1315 *tramp_size = 7 * 4;
1316 }
1317
1318
1319 #endif
1320
1321 #ifdef MONO_ARCH_AOT_SUPPORTED
1322 /*
1323 * arch_emit_direct_call:
1324 *
1325 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
1326 * calling code.
1327 */
1328 static void
1329 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, gboolean external, gboolean thumb, MonoJumpInfo *ji, int *call_size)
1330 {
1331 #if defined(TARGET_X86) || defined(TARGET_AMD64)
1332 /* Need to make sure this is exactly 5 bytes long */
1333 emit_unset_mode (acfg);
1334 fprintf (acfg->fp, "call %s\n", target);
1335 *call_size = 5;
1336 #elif defined(TARGET_ARM)
1337 emit_unset_mode (acfg);
1338 if (thumb)
1339 fprintf (acfg->fp, "blx %s\n", target);
1340 else
1341 fprintf (acfg->fp, "bl %s\n", target);
1342 *call_size = 4;
1343 #elif defined(TARGET_ARM64)
1344 arm64_emit_direct_call (acfg, target, external, thumb, ji, call_size);
1345 #elif defined(TARGET_POWERPC)
1346 emit_unset_mode (acfg);
1347 fprintf (acfg->fp, "bl %s\n", target);
1348 *call_size = 4;
1349 #else
1350 g_assert_not_reached ();
1351 #endif
1352 }
1353 #endif
1354
1355 /*
1356 * PPC32 design:
1357 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
1358 * the GOT pointer.
1359 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
1360 * in in the 2. slot of every GOT, and require every method to place the GOT
1361 * address in r30, even when it doesn't access the GOT otherwise. This way,
1362 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
1363 */
1364
1365 /*
1366 * PPC64 design:
1367 * PPC64 uses function descriptors which greatly complicate all code, since
1368 * these are used very inconsistently in the runtime. Some functions like
1369 * mono_compile_method () return ftn descriptors, while others like the
1370 * trampoline creation functions do not.
1371 * We assume that all GOT slots contain function descriptors, and create
1372 * descriptors in aot-runtime.c when needed.
1373 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
1374 * from function descriptors, we could do the same, but it would require
1375 * rewriting all the ppc/aot code to handle function descriptors properly.
1376 * So instead, we use the same approach as on PPC32.
1377 * This is a horrible mess, but fixing it would probably lead to an even bigger
1378 * one.
1379 */
1380
1381 /*
1382 * X86 design:
1383 * - similar to the PPC32 design, we reserve EBX to hold the GOT pointer.
1384 */
1385
1386 #ifdef MONO_ARCH_AOT_SUPPORTED
1387 /*
1388 * arch_emit_got_offset:
1389 *
1390 * The memory pointed to by CODE should hold native code for computing the GOT
1391 * address (OP_LOAD_GOTADDR). Emit this code while patching it with the offset
1392 * between code and the GOT. CODE_SIZE is set to the number of bytes emitted.
1393 */
1394 static void
1395 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
1396 {
1397 #if defined(TARGET_POWERPC64)
1398 emit_unset_mode (acfg);
1399 /*
1400 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
1401 * unsupported relocations. So we store the got address into the .Lgot_addr
1402 * symbol which is in the text segment, compute its address, and load it.
1403 */
1404 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
1405 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
1406 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
1407 fprintf (acfg->fp, "add 30, 30, 0\n");
1408 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
1409 acfg->label_generator ++;
1410 *code_size = 16;
1411 #elif defined(TARGET_POWERPC)
1412 emit_unset_mode (acfg);
1413 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
1414 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
1415 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
1416 acfg->label_generator ++;
1417 *code_size = 8;
1418 #else
1419 guint32 offset = mono_arch_get_patch_offset (code);
1420 emit_bytes (acfg, code, offset);
1421 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
1422
1423 *code_size = offset + 4;
1424 #endif
1425 }
1426
1427 /*
1428 * arch_emit_got_access:
1429 *
1430 * The memory pointed to by CODE should hold native code for loading a GOT
1431 * slot (OP_AOTCONST/OP_GOT_ENTRY). Emit this code while patching it so it accesses the
1432 * GOT slot GOT_SLOT. CODE_SIZE is set to the number of bytes emitted.
1433 */
1434 static void
1435 arch_emit_got_access (MonoAotCompile *acfg, const char *got_symbol, guint8 *code, int got_slot, int *code_size)
1436 {
1437 #ifdef TARGET_AMD64
1438 /* mov reg, got+offset(%rip) */
1439 if (acfg->llvm) {
1440 /* The GOT symbol is in the LLVM module, the clang assembler has problems emitting symbol diffs for it */
1441 int dreg;
1442 int rex_r;
1443
1444 /* Decode reg, see amd64_mov_reg_membase () */
1445 rex_r = code [0] & AMD64_REX_R;
1446 g_assert (code [0] == 0x49 + rex_r);
1447 g_assert (code [1] == 0x8b);
1448 dreg = ((code [2] >> 3) & 0x7) + (rex_r ? 8 : 0);
1449
1450 emit_unset_mode (acfg);
1451 fprintf (acfg->fp, "mov %s+%d(%%rip), %s\n", got_symbol, (unsigned int) ((got_slot * sizeof (gpointer))), mono_arch_regname (dreg));
1452 *code_size = 7;
1453 } else {
1454 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
1455 emit_symbol_diff (acfg, got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
1456 *code_size = mono_arch_get_patch_offset (code) + 4;
1457 }
1458 #elif defined(TARGET_X86)
1459 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
1460 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
1461 *code_size = mono_arch_get_patch_offset (code) + 4;
1462 #elif defined(TARGET_ARM)
1463 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
1464 emit_symbol_diff (acfg, got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
1465 *code_size = mono_arch_get_patch_offset (code) + 4;
1466 #elif defined(TARGET_ARM64)
1467 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
1468 arm64_emit_got_access (acfg, code, got_slot, code_size);
1469 #elif defined(TARGET_POWERPC)
1470 {
1471 guint8 buf [32];
1472
1473 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
1474 code = buf;
1475 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
1476 g_assert (code - buf == 8);
1477 emit_bytes (acfg, buf, code - buf);
1478 *code_size = code - buf;
1479 }
1480 #else
1481 g_assert_not_reached ();
1482 #endif
1483 }
1484
1485 #endif
1486
1487 #ifdef MONO_ARCH_AOT_SUPPORTED
1488 /*
1489 * arch_emit_objc_selector_ref:
1490 *
1491 * Emit the implementation of OP_OBJC_GET_SELECTOR, which itself implements @selector(foo:) in objective-c.
1492 */
1493 static void
1494 arch_emit_objc_selector_ref (MonoAotCompile *acfg, guint8 *code, int index, int *code_size)
1495 {
1496 #if defined(TARGET_ARM)
1497 char symbol1 [MAX_SYMBOL_SIZE];
1498 char symbol2 [MAX_SYMBOL_SIZE];
1499 int lindex = acfg->objc_selector_index_2 ++;
1500
1501 /* Emit ldr.imm/b */
1502 emit_bytes (acfg, code, 8);
1503
1504 sprintf (symbol1, "L_OBJC_SELECTOR_%d", lindex);
1505 sprintf (symbol2, "L_OBJC_SELECTOR_REFERENCES_%d", index);
1506
1507 emit_label (acfg, symbol1);
1508 mono_img_writer_emit_unset_mode (acfg->w);
1509 fprintf (acfg->fp, ".long %s-(%s+12)", symbol2, symbol1);
1510
1511 *code_size = 12;
1512 #elif defined(TARGET_ARM64)
1513 arm64_emit_objc_selector_ref (acfg, code, index, code_size);
1514 #else
1515 g_assert_not_reached ();
1516 #endif
1517 }
1518 #endif
1519
1520 /*
1521 * arch_emit_plt_entry:
1522 *
1523 * Emit code for the PLT entry.
1524 * The plt entry should look like this:
1525 * <indirect jump to GOT_SYMBOL + OFFSET>
1526 * <INFO_OFFSET embedded into the instruction stream>
1527 */
1528 static void
1529 arch_emit_plt_entry (MonoAotCompile *acfg, const char *got_symbol, int offset, int info_offset)
1530 {
1531 #if defined(TARGET_X86)
1532 /* jmp *<offset>(%ebx) */
1533 emit_byte (acfg, 0xff);
1534 emit_byte (acfg, 0xa3);
1535 emit_int32 (acfg, offset);
1536 /* Used by mono_aot_get_plt_info_offset */
1537 emit_int32 (acfg, info_offset);
1538 #elif defined(TARGET_AMD64)
1539 emit_unset_mode (acfg);
1540 fprintf (acfg->fp, "jmp *%s+%d(%%rip)\n", got_symbol, offset);
1541 /* Used by mono_aot_get_plt_info_offset */
1542 emit_int32 (acfg, info_offset);
1543 acfg->stats.plt_size += 10;
1544 #elif defined(TARGET_ARM)
1545 guint8 buf [256];
1546 guint8 *code;
1547
1548 code = buf;
1549 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
1550 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
1551 emit_bytes (acfg, buf, code - buf);
1552 emit_symbol_diff (acfg, got_symbol, ".", offset - 4);
1553 /* Used by mono_aot_get_plt_info_offset */
1554 emit_int32 (acfg, info_offset);
1555 #elif defined(TARGET_ARM64)
1556 arm64_emit_plt_entry (acfg, got_symbol, offset, info_offset);
1557 #elif defined(TARGET_POWERPC)
1558 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
1559 emit_unset_mode (acfg);
1560 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
1561 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
1562 fprintf (acfg->fp, "add 11, 11, 30\n");
1563 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1564 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1565 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
1566 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1567 #endif
1568 fprintf (acfg->fp, "mtctr 11\n");
1569 fprintf (acfg->fp, "bctr\n");
1570 emit_int32 (acfg, info_offset);
1571 #else
1572 g_assert_not_reached ();
1573 #endif
1574 }
1575
1576 /*
1577 * arch_emit_llvm_plt_entry:
1578 *
1579 * Same as arch_emit_plt_entry, but handles calls from LLVM generated code.
1580 * This is only needed on arm to handle thumb interop.
1581 */
1582 static void
1583 arch_emit_llvm_plt_entry (MonoAotCompile *acfg, const char *got_symbol, int offset, int info_offset)
1584 {
1585 #if defined(TARGET_ARM)
1586 /* LLVM calls the PLT entries using bl, so these have to be thumb2 */
1587 /* The caller already transitioned to thumb */
1588 /* The code below should be 12 bytes long */
1589 /* clang has trouble encoding these instructions, so emit the binary */
1590 #if 0
1591 fprintf (acfg->fp, "ldr ip, [pc, #8]\n");
1592 /* thumb can't encode ld pc, [pc, ip] */
1593 fprintf (acfg->fp, "add ip, pc, ip\n");
1594 fprintf (acfg->fp, "ldr ip, [ip, #0]\n");
1595 fprintf (acfg->fp, "bx ip\n");
1596 #endif
1597 emit_set_thumb_mode (acfg);
1598 fprintf (acfg->fp, ".4byte 0xc008f8df\n");
1599 fprintf (acfg->fp, ".2byte 0x44fc\n");
1600 fprintf (acfg->fp, ".4byte 0xc000f8dc\n");
1601 fprintf (acfg->fp, ".2byte 0x4760\n");
1602 emit_symbol_diff (acfg, got_symbol, ".", offset + 4);
1603 emit_int32 (acfg, info_offset);
1604 emit_unset_mode (acfg);
1605 emit_set_arm_mode (acfg);
1606 #else
1607 g_assert_not_reached ();
1608 #endif
1609 }
1610
1611 /* Save unwind_info in the module and emit the offset to the information at symbol */
1612 static void save_unwind_info (MonoAotCompile *acfg, char *symbol, GSList *unwind_ops)
1613 {
1614 guint32 uw_offset, encoded_len;
1615 guint8 *encoded;
1616
1617 emit_section_change (acfg, RODATA_SECT, 0);
1618 emit_global (acfg, symbol, FALSE);
1619 emit_label (acfg, symbol);
1620
1621 encoded = mono_unwind_ops_encode (unwind_ops, &encoded_len);
1622 uw_offset = get_unwind_info_offset (acfg, encoded, encoded_len);
1623 g_free (encoded);
1624 emit_int32 (acfg, uw_offset);
1625 }
1626
1627 /*
1628 * arch_emit_specific_trampoline_pages:
1629 *
1630 * Emits a page full of trampolines: each trampoline uses its own address to
1631 * lookup both the generic trampoline code and the data argument.
1632 * This page can be remapped in process multiple times so we can get an
1633 * unlimited number of trampolines.
1634 * Specifically this implementation uses the following trick: two memory pages
1635 * are allocated, with the first containing the data and the second containing the trampolines.
1636 * To reduce trampoline size, each trampoline jumps at the start of the page where a common
1637 * implementation does all the lifting.
1638 * Note that the ARM single trampoline size is 8 bytes, exactly like the data that needs to be stored
1639 * on the arm 32 bit system.
1640 */
1641 static void
1642 arch_emit_specific_trampoline_pages (MonoAotCompile *acfg)
1643 {
1644 #if defined(TARGET_ARM)
1645 guint8 buf [128];
1646 guint8 *code;
1647 guint8 *loop_start, *loop_branch_back, *loop_end_check, *imt_found_check;
1648 int i;
1649 int pagesize = MONO_AOT_TRAMP_PAGE_SIZE;
1650 GSList *unwind_ops = NULL;
1651 #define COMMON_TRAMP_SIZE 16
1652 int count = (pagesize - COMMON_TRAMP_SIZE) / 8;
1653 int imm8, rot_amount;
1654 char symbol [128];
1655
1656 if (!acfg->aot_opts.use_trampolines_page)
1657 return;
1658
1659 acfg->tramp_page_size = pagesize;
1660
1661 sprintf (symbol, "%sspecific_trampolines_page", acfg->user_symbol_prefix);
1662 emit_alignment (acfg, pagesize);
1663 emit_global (acfg, symbol, TRUE);
1664 emit_label (acfg, symbol);
1665
1666 /* emit the generic code first, the trampoline address + 8 is in the lr register */
1667 code = buf;
1668 imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount);
1669 ARM_SUB_REG_IMM (code, ARMREG_LR, ARMREG_LR, imm8, rot_amount);
1670 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_LR, -8);
1671 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_LR, -4);
1672 ARM_NOP (code);
1673 g_assert (code - buf == COMMON_TRAMP_SIZE);
1674
1675 /* Emit it */
1676 emit_bytes (acfg, buf, code - buf);
1677
1678 for (i = 0; i < count; ++i) {
1679 code = buf;
1680 ARM_PUSH (code, 0x5fff);
1681 ARM_BL (code, 0);
1682 arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1));
1683 g_assert (code - buf == 8);
1684 emit_bytes (acfg, buf, code - buf);
1685 }
1686
1687 /* now the rgctx trampolines: each specific trampolines puts in the ip register
1688 * the instruction pointer address, so the generic trampoline at the start of the page
1689 * subtracts 4096 to get to the data page and loads the values
1690 * We again fit the generic trampiline in 16 bytes.
1691 */
1692 sprintf (symbol, "%srgctx_trampolines_page", acfg->user_symbol_prefix);
1693 emit_global (acfg, symbol, TRUE);
1694 emit_label (acfg, symbol);
1695 code = buf;
1696 imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount);
1697 ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount);
1698 ARM_LDR_IMM (code, MONO_ARCH_RGCTX_REG, ARMREG_IP, -8);
1699 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, -4);
1700 ARM_NOP (code);
1701 g_assert (code - buf == COMMON_TRAMP_SIZE);
1702
1703 /* Emit it */
1704 emit_bytes (acfg, buf, code - buf);
1705
1706 for (i = 0; i < count; ++i) {
1707 code = buf;
1708 ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC);
1709 ARM_B (code, 0);
1710 arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1));
1711 g_assert (code - buf == 8);
1712 emit_bytes (acfg, buf, code - buf);
1713 }
1714
1715 /*
1716 * gsharedvt arg trampolines: see arch_emit_gsharedvt_arg_trampoline ()
1717 */
1718 sprintf (symbol, "%sgsharedvt_arg_trampolines_page", acfg->user_symbol_prefix);
1719 emit_global (acfg, symbol, TRUE);
1720 emit_label (acfg, symbol);
1721 code = buf;
1722 ARM_PUSH (code, (1 << ARMREG_R0) | (1 << ARMREG_R1) | (1 << ARMREG_R2) | (1 << ARMREG_R3));
1723 imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount);
1724 ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount);
1725 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_IP, -8);
1726 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, -4);
1727 g_assert (code - buf == COMMON_TRAMP_SIZE);
1728 /* Emit it */
1729 emit_bytes (acfg, buf, code - buf);
1730
1731 for (i = 0; i < count; ++i) {
1732 code = buf;
1733 ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC);
1734 ARM_B (code, 0);
1735 arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1));
1736 g_assert (code - buf == 8);
1737 emit_bytes (acfg, buf, code - buf);
1738 }
1739
1740 /* now the imt trampolines: each specific trampolines puts in the ip register
1741 * the instruction pointer address, so the generic trampoline at the start of the page
1742 * subtracts 4096 to get to the data page and loads the values
1743 */
1744 #define IMT_TRAMP_SIZE 72
1745 sprintf (symbol, "%simt_trampolines_page", acfg->user_symbol_prefix);
1746 emit_global (acfg, symbol, TRUE);
1747 emit_label (acfg, symbol);
1748 code = buf;
1749 /* Need at least two free registers, plus a slot for storing the pc */
1750 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1751
1752 imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount);
1753 ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount);
1754 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_IP, -8);
1755
1756 /* The IMT method is in v5, r0 has the imt array address */
1757
1758 loop_start = code;
1759 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1760 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1761 imt_found_check = code;
1762 ARM_B_COND (code, ARMCOND_EQ, 0);
1763
1764 /* End-of-loop check */
1765 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1766 loop_end_check = code;
1767 ARM_B_COND (code, ARMCOND_EQ, 0);
1768
1769 /* Loop footer */
1770 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1771 loop_branch_back = code;
1772 ARM_B (code, 0);
1773 arm_patch (loop_branch_back, loop_start);
1774
1775 /* Match */
1776 arm_patch (imt_found_check, code);
1777 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1778 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1779 /* Save it to the third stack slot */
1780 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1781 /* Restore the registers and branch */
1782 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1783
1784 /* No match */
1785 arm_patch (loop_end_check, code);
1786 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1787 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1788 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1789 ARM_NOP (code);
1790
1791 /* Emit it */
1792 g_assert (code - buf == IMT_TRAMP_SIZE);
1793 emit_bytes (acfg, buf, code - buf);
1794
1795 for (i = 0; i < count; ++i) {
1796 code = buf;
1797 ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC);
1798 ARM_B (code, 0);
1799 arm_patch (code - 4, code - IMT_TRAMP_SIZE - 8 * (i + 1));
1800 g_assert (code - buf == 8);
1801 emit_bytes (acfg, buf, code - buf);
1802 }
1803
1804 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_SPECIFIC] = 16;
1805 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_STATIC_RGCTX] = 16;
1806 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_IMT] = 72;
1807 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_GSHAREDVT_ARG] = 16;
1808
1809 /* Unwind info for specifc trampolines */
1810 sprintf (symbol, "%sspecific_trampolines_page_gen_p", acfg->user_symbol_prefix);
1811 /* We unwind to the original caller, from the stack, since lr is clobbered */
1812 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 14 * sizeof (mgreg_t));
1813 mono_add_unwind_op_offset (unwind_ops, 0, 0, ARMREG_LR, -4);
1814 save_unwind_info (acfg, symbol, unwind_ops);
1815 mono_free_unwind_info (unwind_ops);
1816
1817 sprintf (symbol, "%sspecific_trampolines_page_sp_p", acfg->user_symbol_prefix);
1818 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0);
1819 mono_add_unwind_op_def_cfa_offset (unwind_ops, 4, 0, 14 * sizeof (mgreg_t));
1820 save_unwind_info (acfg, symbol, unwind_ops);
1821 mono_free_unwind_info (unwind_ops);
1822
1823 /* Unwind info for rgctx trampolines */
1824 sprintf (symbol, "%srgctx_trampolines_page_gen_p", acfg->user_symbol_prefix);
1825 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0);
1826 save_unwind_info (acfg, symbol, unwind_ops);
1827
1828 sprintf (symbol, "%srgctx_trampolines_page_sp_p", acfg->user_symbol_prefix);
1829 save_unwind_info (acfg, symbol, unwind_ops);
1830 mono_free_unwind_info (unwind_ops);
1831
1832 /* Unwind info for gsharedvt trampolines */
1833 sprintf (symbol, "%sgsharedvt_trampolines_page_gen_p", acfg->user_symbol_prefix);
1834 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0);
1835 mono_add_unwind_op_def_cfa_offset (unwind_ops, 4, 0, 4 * sizeof (mgreg_t));
1836 save_unwind_info (acfg, symbol, unwind_ops);
1837 mono_free_unwind_info (unwind_ops);
1838
1839 sprintf (symbol, "%sgsharedvt_trampolines_page_sp_p", acfg->user_symbol_prefix);
1840 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0);
1841 save_unwind_info (acfg, symbol, unwind_ops);
1842 mono_free_unwind_info (unwind_ops);
1843
1844 /* Unwind info for imt trampolines */
1845 sprintf (symbol, "%simt_trampolines_page_gen_p", acfg->user_symbol_prefix);
1846 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0);
1847 mono_add_unwind_op_def_cfa_offset (unwind_ops, 4, 0, 3 * sizeof (mgreg_t));
1848 save_unwind_info (acfg, symbol, unwind_ops);
1849 mono_free_unwind_info (unwind_ops);
1850
1851 sprintf (symbol, "%simt_trampolines_page_sp_p", acfg->user_symbol_prefix);
1852 mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0);
1853 save_unwind_info (acfg, symbol, unwind_ops);
1854 mono_free_unwind_info (unwind_ops);
1855 #elif defined(TARGET_ARM64)
1856 arm64_emit_specific_trampoline_pages (acfg);
1857 #endif
1858 }
1859
1860 /*
1861 * arch_emit_specific_trampoline:
1862 *
1863 * Emit code for a specific trampoline. OFFSET is the offset of the first of
1864 * two GOT slots which contain the generic trampoline address and the trampoline
1865 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
1866 */
1867 static void
1868 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1869 {
1870 /*
1871 * The trampolines created here are variations of the specific
1872 * trampolines created in mono_arch_create_specific_trampoline (). The
1873 * differences are:
1874 * - the generic trampoline address is taken from a got slot.
1875 * - the offset of the got slot where the trampoline argument is stored
1876 * is embedded in the instruction stream, and the generic trampoline
1877 * can load the argument by loading the offset, adding it to the
1878 * address of the trampoline to get the address of the got slot, and
1879 * loading the argument from there.
1880 * - all the trampolines should be of the same length.
1881 */
1882 #if defined(TARGET_AMD64)
1883 /* This should be exactly 8 bytes long */
1884 *tramp_size = 8;
1885 /* call *<offset>(%rip) */
1886 if (acfg->llvm) {
1887 emit_unset_mode (acfg);
1888 fprintf (acfg->fp, "call *%s+%d(%%rip)\n", acfg->got_symbol, (int)(offset * sizeof (gpointer)));
1889 emit_zero_bytes (acfg, 2);
1890 } else {
1891 emit_byte (acfg, '\x41');
1892 emit_byte (acfg, '\xff');
1893 emit_byte (acfg, '\x15');
1894 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1895 emit_zero_bytes (acfg, 1);
1896 }
1897 #elif defined(TARGET_ARM)
1898 guint8 buf [128];
1899 guint8 *code;
1900
1901 /* This should be exactly 20 bytes long */
1902 *tramp_size = 20;
1903 code = buf;
1904 ARM_PUSH (code, 0x5fff);
1905 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
1906 /* Load the value from the GOT */
1907 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
1908 /* Branch to it */
1909 ARM_BLX_REG (code, ARMREG_R1);
1910
1911 g_assert (code - buf == 16);
1912
1913 /* Emit it */
1914 emit_bytes (acfg, buf, code - buf);
1915 /*
1916 * Only one offset is needed, since the second one would be equal to the
1917 * first one.
1918 */
1919 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
1920 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
1921 #elif defined(TARGET_ARM64)
1922 arm64_emit_specific_trampoline (acfg, offset, tramp_size);
1923 #elif defined(TARGET_POWERPC)
1924 guint8 buf [128];
1925 guint8 *code;
1926
1927 *tramp_size = 4;
1928 code = buf;
1929
1930 /*
1931 * PPC has no ip relative addressing, so we need to compute the address
1932 * of the mscorlib got. That is slow and complex, so instead, we store it
1933 * in the second got slot of every aot image. The caller already computed
1934 * the address of its got and placed it into r30.
1935 */
1936 emit_unset_mode (acfg);
1937 /* Load mscorlib got address */
1938 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
1939 /* Load generic trampoline address */
1940 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
1941 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
1942 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
1943 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1944 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1945 #endif
1946 fprintf (acfg->fp, "mtctr 11\n");
1947 /* Load trampoline argument */
1948 /* On ppc, we pass it normally to the generic trampoline */
1949 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
1950 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
1951 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
1952 /* Branch to generic trampoline */
1953 fprintf (acfg->fp, "bctr\n");
1954
1955 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1956 *tramp_size = 10 * 4;
1957 #else
1958 *tramp_size = 9 * 4;
1959 #endif
1960 #elif defined(TARGET_X86)
1961 guint8 buf [128];
1962 guint8 *code;
1963
1964 /* Similar to the PPC code above */
1965
1966 /* FIXME: Could this clobber the register needed by get_vcall_slot () ? */
1967
1968 code = buf;
1969 /* Load mscorlib got address */
1970 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1971 /* Push trampoline argument */
1972 x86_push_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
1973 /* Load generic trampoline address */
1974 x86_mov_reg_membase (code, X86_ECX, X86_ECX, offset * sizeof (gpointer), 4);
1975 /* Branch to generic trampoline */
1976 x86_jump_reg (code, X86_ECX);
1977
1978 emit_bytes (acfg, buf, code - buf);
1979
1980 *tramp_size = 17;
1981 g_assert (code - buf == *tramp_size);
1982 #else
1983 g_assert_not_reached ();
1984 #endif
1985 }
1986
1987 /*
1988 * arch_emit_unbox_trampoline:
1989 *
1990 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
1991 * CALL_TARGET is the symbol pointing to the native code of METHOD.
1992 */
1993 static void
1994 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, const char *call_target)
1995 {
1996 #if defined(TARGET_AMD64)
1997 guint8 buf [32];
1998 guint8 *code;
1999 int this_reg;
2000
2001 this_reg = mono_arch_get_this_arg_reg (NULL);
2002 code = buf;
2003 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
2004
2005 emit_bytes (acfg, buf, code - buf);
2006 /* jump <method> */
2007 if (acfg->llvm) {
2008 emit_unset_mode (acfg);
2009 fprintf (acfg->fp, "jmp %s\n", call_target);
2010 } else {
2011 emit_byte (acfg, '\xe9');
2012 emit_symbol_diff (acfg, call_target, ".", -4);
2013 }
2014 #elif defined(TARGET_X86)
2015 guint8 buf [32];
2016 guint8 *code;
2017 int this_pos = 4;
2018
2019 code = buf;
2020
2021 x86_alu_membase_imm (code, X86_ADD, X86_ESP, this_pos, sizeof (MonoObject));
2022
2023 emit_bytes (acfg, buf, code - buf);
2024
2025 /* jump <method> */
2026 emit_byte (acfg, '\xe9');
2027 emit_symbol_diff (acfg, call_target, ".", -4);
2028 #elif defined(TARGET_ARM)
2029 guint8 buf [128];
2030 guint8 *code;
2031
2032 if (acfg->thumb_mixed && cfg->compile_llvm) {
2033 fprintf (acfg->fp, "add r0, r0, #%d\n", (int)sizeof (MonoObject));
2034 fprintf (acfg->fp, "b %s\n", call_target);
2035 fprintf (acfg->fp, ".arm\n");
2036 fprintf (acfg->fp, ".align 2\n");
2037 return;
2038 }
2039
2040 code = buf;
2041
2042 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (MonoObject));
2043
2044 emit_bytes (acfg, buf, code - buf);
2045 /* jump to method */
2046 if (acfg->thumb_mixed && cfg->compile_llvm)
2047 fprintf (acfg->fp, "\n\tbx %s\n", call_target);
2048 else
2049 fprintf (acfg->fp, "\n\tb %s\n", call_target);
2050 #elif defined(TARGET_ARM64)
2051 arm64_emit_unbox_trampoline (acfg, cfg, method, call_target);
2052 #elif defined(TARGET_POWERPC)
2053 int this_pos = 3;
2054
2055 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
2056 fprintf (acfg->fp, "\n\tb %s\n", call_target);
2057 #else
2058 g_assert_not_reached ();
2059 #endif
2060 }
2061
2062 /*
2063 * arch_emit_static_rgctx_trampoline:
2064 *
2065 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
2066 * two GOT slots which contain the rgctx argument, and the method to jump to.
2067 * TRAMP_SIZE is set to the size of the emitted trampoline.
2068 * These kinds of trampolines cannot be enumerated statically, since there could
2069 * be one trampoline per method instantiation, so we emit the same code for all
2070 * trampolines, and parameterize them using two GOT slots.
2071 */
2072 static void
2073 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
2074 {
2075 #if defined(TARGET_AMD64)
2076 /* This should be exactly 13 bytes long */
2077 *tramp_size = 13;
2078
2079 if (acfg->llvm) {
2080 emit_unset_mode (acfg);
2081 fprintf (acfg->fp, "mov %s+%d(%%rip), %%r10\n", acfg->got_symbol, (int)(offset * sizeof (gpointer)));
2082 fprintf (acfg->fp, "jmp *%s+%d(%%rip)\n", acfg->got_symbol, (int)((offset + 1) * sizeof (gpointer)));
2083 } else {
2084 /* mov <OFFSET>(%rip), %r10 */
2085 emit_byte (acfg, '\x4d');
2086 emit_byte (acfg, '\x8b');
2087 emit_byte (acfg, '\x15');
2088 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
2089
2090 /* jmp *<offset>(%rip) */
2091 emit_byte (acfg, '\xff');
2092 emit_byte (acfg, '\x25');
2093 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
2094 }
2095 #elif defined(TARGET_ARM)
2096 guint8 buf [128];
2097 guint8 *code;
2098
2099 /* This should be exactly 24 bytes long */
2100 *tramp_size = 24;
2101 code = buf;
2102 /* Load rgctx value */
2103 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 8);
2104 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP);
2105 /* Load branch addr + branch */
2106 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
2107 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
2108
2109 g_assert (code - buf == 16);
2110
2111 /* Emit it */
2112 emit_bytes (acfg, buf, code - buf);
2113 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
2114 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
2115 #elif defined(TARGET_ARM64)
2116 arm64_emit_static_rgctx_trampoline (acfg, offset, tramp_size);
2117 #elif defined(TARGET_POWERPC)
2118 guint8 buf [128];
2119 guint8 *code;
2120
2121 *tramp_size = 4;
2122 code = buf;
2123
2124 /*
2125 * PPC has no ip relative addressing, so we need to compute the address
2126 * of the mscorlib got. That is slow and complex, so instead, we store it
2127 * in the second got slot of every aot image. The caller already computed
2128 * the address of its got and placed it into r30.
2129 */
2130 emit_unset_mode (acfg);
2131 /* Load mscorlib got address */
2132 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
2133 /* Load rgctx */
2134 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
2135 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
2136 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
2137 /* Load target address */
2138 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
2139 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
2140 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
2141 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
2142 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
2143 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
2144 #endif
2145 fprintf (acfg->fp, "mtctr 11\n");
2146 /* Branch to the target address */
2147 fprintf (acfg->fp, "bctr\n");
2148
2149 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
2150 *tramp_size = 11 * 4;
2151 #else
2152 *tramp_size = 9 * 4;
2153 #endif
2154
2155 #elif defined(TARGET_X86)
2156 guint8 buf [128];
2157 guint8 *code;
2158
2159 /* Similar to the PPC code above */
2160
2161 g_assert (MONO_ARCH_RGCTX_REG != X86_ECX);
2162
2163 code = buf;
2164 /* Load mscorlib got address */
2165 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
2166 /* Load arg */
2167 x86_mov_reg_membase (code, MONO_ARCH_RGCTX_REG, X86_ECX, offset * sizeof (gpointer), 4);
2168 /* Branch to the target address */
2169 x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
2170
2171 emit_bytes (acfg, buf, code - buf);
2172
2173 *tramp_size = 15;
2174 g_assert (code - buf == *tramp_size);
2175 #else
2176 g_assert_not_reached ();
2177 #endif
2178 }
2179
2180 /*
2181 * arch_emit_imt_trampoline:
2182 *
2183 * Emit an IMT trampoline usable in full-aot mode. The trampoline uses 1 got slot which
2184 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
2185 * key is the IMT key, and ptr holds the address of a memory location holding
2186 * the address to branch to if the IMT arg matches the key. The array is
2187 * terminated by a pair whose key is NULL, and whose ptr is the address of the
2188 * fail_tramp.
2189 * TRAMP_SIZE is set to the size of the emitted trampoline.
2190 */
2191 static void
2192 arch_emit_imt_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
2193 {
2194 #if defined(TARGET_AMD64)
2195 guint8 *buf, *code;
2196 guint8 *labels [16];
2197 guint8 mov_buf[3];
2198 guint8 *mov_buf_ptr = mov_buf;
2199
2200 const int kSizeOfMove = 7;
2201
2202 code = buf = (guint8 *)g_malloc (256);
2203
2204 /* FIXME: Optimize this, i.e. use binary search etc. */
2205 /* Maybe move the body into a separate function (slower, but much smaller) */
2206
2207 /* MONO_ARCH_IMT_SCRATCH_REG is a free register */
2208
2209 if (acfg->llvm) {
2210 emit_unset_mode (acfg);
2211 fprintf (acfg->fp, "mov %s+%d(%%rip), %s\n", acfg->got_symbol, (int)(offset * sizeof (gpointer)), mono_arch_regname (MONO_ARCH_IMT_SCRATCH_REG));
2212 }
2213
2214 labels [0] = code;
2215 amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0);
2216 labels [1] = code;
2217 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
2218
2219 /* Check key */
2220 amd64_alu_membase_reg_size (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, MONO_ARCH_IMT_REG, sizeof (gpointer));
2221 labels [2] = code;
2222 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
2223
2224 /* Loop footer */
2225 amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, 2 * sizeof (gpointer));
2226 amd64_jump_code (code, labels [0]);
2227
2228 /* Match */
2229 mono_amd64_patch (labels [2], code);
2230 amd64_mov_reg_membase (code, MONO_ARCH_IMT_SCRATCH_REG, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer), sizeof (gpointer));
2231 amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0);
2232
2233 /* No match */
2234 mono_amd64_patch (labels [1], code);
2235 /* Load fail tramp */
2236 amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer));
2237 /* Check if there is a fail tramp */
2238 amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0);
2239 labels [3] = code;
2240 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
2241 /* Jump to fail tramp */
2242 amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0);
2243
2244 /* Fail */
2245 mono_amd64_patch (labels [3], code);
2246 x86_breakpoint (code);
2247
2248 if (!acfg->llvm) {
2249 /* mov <OFFSET>(%rip), MONO_ARCH_IMT_SCRATCH_REG */
2250 amd64_emit_rex (mov_buf_ptr, sizeof(gpointer), MONO_ARCH_IMT_SCRATCH_REG, 0, AMD64_RIP);
2251 *(mov_buf_ptr)++ = (unsigned char)0x8b; /* mov opcode */
2252 x86_address_byte (mov_buf_ptr, 0, MONO_ARCH_IMT_SCRATCH_REG & 0x7, 5);
2253 emit_bytes (acfg, mov_buf, mov_buf_ptr - mov_buf);
2254 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
2255 }
2256 emit_bytes (acfg, buf, code - buf);
2257
2258 *tramp_size = code - buf + kSizeOfMove;
2259
2260 g_free (buf);
2261
2262 #elif defined(TARGET_X86)
2263 guint8 *buf, *code;
2264 guint8 *labels [16];
2265
2266 code = buf = g_malloc (256);
2267
2268 /* Allocate a temporary stack slot */
2269 x86_push_reg (code, X86_EAX);
2270 /* Save EAX */
2271 x86_push_reg (code, X86_EAX);
2272
2273 /* Load mscorlib got address */
2274 x86_mov_reg_membase (code, X86_EAX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
2275 /* Load arg */
2276 x86_mov_reg_membase (code, X86_EAX, X86_EAX, offset * sizeof (gpointer), 4);
2277
2278 labels [0] = code;
2279 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
2280 labels [1] = code;
2281 x86_branch8 (code, X86_CC_Z, FALSE, 0);
2282
2283 /* Check key */
2284 x86_alu_membase_reg (code, X86_CMP, X86_EAX, 0, MONO_ARCH_IMT_REG);
2285 labels [2] = code;
2286 x86_branch8 (code, X86_CC_Z, FALSE, 0);
2287
2288 /* Loop footer */
2289 x86_alu_reg_imm (code, X86_ADD, X86_EAX, 2 * sizeof (gpointer));
2290 x86_jump_code (code, labels [0]);
2291
2292 /* Match */
2293 mono_x86_patch (labels [2], code);
2294 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
2295 x86_mov_reg_membase (code, X86_EAX, X86_EAX, 0, 4);
2296 /* Save the target address to the temporary stack location */
2297 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
2298 /* Restore EAX */
2299 x86_pop_reg (code, X86_EAX);
2300 /* Jump to the target address */
2301 x86_ret (code);
2302
2303 /* No match */
2304 mono_x86_patch (labels [1], code);
2305 /* Load fail tramp */
2306 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
2307 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
2308 labels [3] = code;
2309 x86_branch8 (code, X86_CC_Z, FALSE, 0);
2310 /* Jump to fail tramp */
2311 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
2312 x86_pop_reg (code, X86_EAX);
2313 x86_ret (code);
2314
2315 /* Fail */
2316 mono_x86_patch (labels [3], code);
2317 x86_breakpoint (code);
2318
2319 emit_bytes (acfg, buf, code - buf);
2320
2321 *tramp_size = code - buf;
2322
2323 g_free (buf);
2324
2325 #elif defined(TARGET_ARM)
2326 guint8 buf [128];
2327 guint8 *code, *code2, *labels [16];
2328
2329 code = buf;
2330
2331 /* The IMT method is in v5 */
2332
2333 /* Need at least two free registers, plus a slot for storing the pc */
2334 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
2335 labels [0] = code;
2336 /* Load the parameter from the GOT */
2337 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
2338 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
2339
2340 labels [1] = code;
2341 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
2342 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
2343 labels [2] = code;
2344 ARM_B_COND (code, ARMCOND_EQ, 0);
2345
2346 /* End-of-loop check */
2347 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
2348 labels [3] = code;
2349 ARM_B_COND (code, ARMCOND_EQ, 0);
2350
2351 /* Loop footer */
2352 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
2353 labels [4] = code;
2354 ARM_B (code, 0);
2355 arm_patch (labels [4], labels [1]);
2356
2357 /* Match */
2358 arm_patch (labels [2], code);
2359 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
2360 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
2361 /* Save it to the third stack slot */
2362 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
2363 /* Restore the registers and branch */
2364 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
2365
2366 /* No match */
2367 arm_patch (labels [3], code);
2368 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
2369 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
2370 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
2371
2372 /* Fixup offset */
2373 code2 = labels [0];
2374 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
2375
2376 emit_bytes (acfg, buf, code - buf);
2377 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
2378
2379 *tramp_size = code - buf + 4;
2380 #elif defined(TARGET_ARM64)
2381 arm64_emit_imt_trampoline (acfg, offset, tramp_size);
2382 #elif defined(TARGET_POWERPC)
2383 guint8 buf [128];
2384 guint8 *code, *labels [16];
2385
2386 code = buf;
2387
2388 /* Load the mscorlib got address */
2389 ppc_ldptr (code, ppc_r12, sizeof (gpointer), ppc_r30);
2390 /* Load the parameter from the GOT */
2391 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
2392 ppc_ldptr_indexed (code, ppc_r12, ppc_r12, ppc_r0);
2393
2394 /* Load and check key */
2395 labels [1] = code;
2396 ppc_ldptr (code, ppc_r0, 0, ppc_r12);
2397 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
2398 labels [2] = code;
2399 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
2400
2401 /* End-of-loop check */
2402 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
2403 labels [3] = code;
2404 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
2405
2406 /* Loop footer */
2407 ppc_addi (code, ppc_r12, ppc_r12, 2 * sizeof (gpointer));
2408 labels [4] = code;
2409 ppc_b (code, 0);
2410 mono_ppc_patch (labels [4], labels [1]);
2411
2412 /* Match */
2413 mono_ppc_patch (labels [2], code);
2414 ppc_ldptr (code, ppc_r12, sizeof (gpointer), ppc_r12);
2415 /* r12 now contains the value of the vtable slot */
2416 /* this is not a function descriptor on ppc64 */
2417 ppc_ldptr (code, ppc_r12, 0, ppc_r12);
2418 ppc_mtctr (code, ppc_r12);
2419 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
2420
2421 /* Fail */
2422 mono_ppc_patch (labels [3], code);
2423 /* FIXME: */
2424 ppc_break (code);
2425
2426 *tramp_size = code - buf;
2427
2428 emit_bytes (acfg, buf, code - buf);
2429 #else
2430 g_assert_not_reached ();
2431 #endif
2432 }
2433
2434
2435 #if defined (TARGET_AMD64)
2436
2437 static void
2438 amd64_emit_load_got_slot (MonoAotCompile *acfg, int dreg, int got_slot)
2439 {
2440
2441 g_assert (acfg->fp);
2442 emit_unset_mode (acfg);
2443
2444 fprintf (acfg->fp, "mov %s+%d(%%rip), %s\n", acfg->got_symbol, (unsigned int) ((got_slot * sizeof (gpointer))), mono_arch_regname (dreg));
2445 }
2446
2447 #endif
2448
2449
2450 /*
2451 * arch_emit_gsharedvt_arg_trampoline:
2452 *
2453 * Emit code for a gsharedvt arg trampoline. OFFSET is the offset of the first of
2454 * two GOT slots which contain the argument, and the code to jump to.
2455 * TRAMP_SIZE is set to the size of the emitted trampoline.
2456 * These kinds of trampolines cannot be enumerated statically, since there could
2457 * be one trampoline per method instantiation, so we emit the same code for all
2458 * trampolines, and parameterize them using two GOT slots.
2459 */
2460 static void
2461 arch_emit_gsharedvt_arg_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
2462 {
2463 #if defined(TARGET_X86)
2464 guint8 buf [128];
2465 guint8 *code;
2466
2467 /* Similar to the PPC code above */
2468
2469 g_assert (MONO_ARCH_RGCTX_REG != X86_ECX);
2470
2471 code = buf;
2472 /* Load mscorlib got address */
2473 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
2474 /* Load arg */
2475 x86_mov_reg_membase (code, X86_EAX, X86_ECX, offset * sizeof (gpointer), 4);
2476 /* Branch to the target address */
2477 x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
2478
2479 emit_bytes (acfg, buf, code - buf);
2480
2481 *tramp_size = 15;
2482 g_assert (code - buf == *tramp_size);
2483 #elif defined(TARGET_ARM)
2484 guint8 buf [128];
2485 guint8 *code;
2486
2487 /* The same as mono_arch_get_gsharedvt_arg_trampoline (), but for AOT */
2488 /* Similar to arch_emit_specific_trampoline () */
2489 *tramp_size = 24;
2490 code = buf;
2491 ARM_PUSH (code, (1 << ARMREG_R0) | (1 << ARMREG_R1) | (1 << ARMREG_R2) | (1 << ARMREG_R3));
2492 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
2493 /* Load the arg value from the GOT */
2494 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R1);
2495 /* Load the addr from the GOT */
2496 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
2497 /* Branch to it */
2498 ARM_BX (code, ARMREG_R1);
2499
2500 g_assert (code - buf == 20);
2501
2502 /* Emit it */
2503 emit_bytes (acfg, buf, code - buf);
2504 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + 4);
2505 #elif defined(TARGET_ARM64)
2506 arm64_emit_gsharedvt_arg_trampoline (acfg, offset, tramp_size);
2507 #elif defined (TARGET_AMD64)
2508
2509 amd64_emit_load_got_slot (acfg, AMD64_RAX, offset);
2510 amd64_emit_load_got_slot (acfg, MONO_ARCH_IMT_SCRATCH_REG, offset + 1);
2511 g_assert (AMD64_R11 == MONO_ARCH_IMT_SCRATCH_REG);
2512 fprintf (acfg->fp, "jmp *%%r11\n");
2513
2514 *tramp_size = 0x11;
2515 #else
2516 g_assert_not_reached ();
2517 #endif
2518 }
2519
2520 /* END OF ARCH SPECIFIC CODE */
2521
2522 static guint32
2523 mono_get_field_token (MonoClassField *field)
2524 {
2525 MonoClass *klass = field->parent;
2526 int i;
2527
2528 int fcount = mono_class_get_field_count (klass);
2529 for (i = 0; i < fcount; ++i) {
2530 if (field == &klass->fields [i])
2531 return MONO_TOKEN_FIELD_DEF | (mono_class_get_first_field_idx (klass) + 1 + i);
2532 }
2533
2534 g_assert_not_reached ();
2535 return 0;
2536 }
2537
2538 static inline void
2539 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
2540 {
2541 guint8 *p = buf;
2542
2543 //printf ("ENCODE: %d 0x%x.\n", value, value);
2544
2545 /*
2546 * Same encoding as the one used in the metadata, extended to handle values
2547 * greater than 0x1fffffff.
2548 */
2549 if ((value >= 0) && (value <= 127))
2550 *p++ = value;
2551 else if ((value >= 0) && (value <= 16383)) {
2552 p [0] = 0x80 | (value >> 8);
2553 p [1] = value & 0xff;
2554 p += 2;
2555 } else if ((value >= 0) && (value <= 0x1fffffff)) {
2556 p [0] = (value >> 24) | 0xc0;
2557 p [1] = (value >> 16) & 0xff;
2558 p [2] = (value >> 8) & 0xff;
2559 p [3] = value & 0xff;
2560 p += 4;
2561 }
2562 else {
2563 p [0] = 0xff;
2564 p [1] = (value >> 24) & 0xff;
2565 p [2] = (value >> 16) & 0xff;
2566 p [3] = (value >> 8) & 0xff;
2567 p [4] = value & 0xff;
2568 p += 5;
2569 }
2570 if (endbuf)
2571 *endbuf = p;
2572 }
2573
2574 static void
2575 stream_init (MonoDynamicStream *sh)
2576 {
2577 sh->index = 0;
2578 sh->alloc_size = 4096;
2579 sh->data = (char *)g_malloc (4096);
2580
2581 /* So offsets are > 0 */
2582 sh->data [0] = 0;
2583 sh->index ++;
2584 }
2585
2586 static void
2587 make_room_in_stream (MonoDynamicStream *stream, int size)
2588 {
2589 if (size <= stream->alloc_size)
2590 return;
2591
2592 while (stream->alloc_size <= size) {
2593 if (stream->alloc_size < 4096)
2594 stream->alloc_size = 4096;
2595 else
2596 stream->alloc_size *= 2;
2597 }
2598
2599 stream->data = (char *)g_realloc (stream->data, stream->alloc_size);
2600 }
2601
2602 static guint32
2603 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
2604 {
2605 guint32 idx;
2606
2607 make_room_in_stream (stream, stream->index + len);
2608 memcpy (stream->data + stream->index, data, len);
2609 idx = stream->index;
2610 stream->index += len;
2611 return idx;
2612 }
2613
2614 /*
2615 * add_to_blob:
2616 *
2617 * Add data to the binary blob inside the aot image. Returns the offset inside the
2618 * blob where the data was stored.
2619 */
2620 static guint32
2621 add_to_blob (MonoAotCompile *acfg, const guint8 *data, guint32 data_len)
2622 {
2623 g_assert (!acfg->blob_closed);
2624
2625 if (acfg->blob.alloc_size == 0)
2626 stream_init (&acfg->blob);
2627
2628 return add_stream_data (&acfg->blob, (char*)data, data_len);
2629 }
2630
2631 static guint32
2632 add_to_blob_aligned (MonoAotCompile *acfg, const guint8 *data, guint32 data_len, guint32 align)
2633 {
2634 char buf [4] = {0};
2635 guint32 count;
2636
2637 if (acfg->blob.alloc_size == 0)
2638 stream_init (&acfg->blob);
2639
2640 count = acfg->blob.index % align;
2641
2642 /* we assume the stream data will be aligned */
2643 if (count)
2644 add_stream_data (&acfg->blob, buf, 4 - count);
2645
2646 return add_stream_data (&acfg->blob, (char*)data, data_len);
2647 }
2648
2649 /* Emit a table of data into the aot image */
2650 static void
2651 emit_aot_data (MonoAotCompile *acfg, MonoAotFileTable table, const char *symbol, guint8 *data, int size)
2652 {
2653 if (acfg->data_outfile) {
2654 acfg->table_offsets [(int)table] = acfg->datafile_offset;
2655 fwrite (data,1, size, acfg->data_outfile);
2656 acfg->datafile_offset += size;
2657 // align the data to 8 bytes. Put zeros in the file (so that every build results in consistent output).
2658 int align = 8 - size % 8;
2659 acfg->datafile_offset += align;
2660 guint8 align_buf [16];
2661 memset (&align_buf, 0, sizeof (align_buf));
2662 fwrite (align_buf, align, 1, acfg->data_outfile);
2663 } else if (acfg->llvm) {
2664 mono_llvm_emit_aot_data (symbol, data, size);
2665 } else {
2666 emit_section_change (acfg, RODATA_SECT, 0);
2667 emit_alignment (acfg, 8);
2668 emit_label (acfg, symbol);
2669 emit_bytes (acfg, data, size);
2670 }
2671 }
2672
2673 /*
2674 * emit_offset_table:
2675 *
2676 * Emit a table of increasing offsets in a compact form using differential encoding.
2677 * There is an index entry for each GROUP_SIZE number of entries. The greater the
2678 * group size, the more compact the table becomes, but the slower it becomes to compute
2679 * a given entry. Returns the size of the table.
2680 */
2681 static guint32
2682 emit_offset_table (MonoAotCompile *acfg, const char *symbol, MonoAotFileTable table, int noffsets, int group_size, gint32 *offsets)
2683 {
2684 gint32 current_offset;
2685 int i, buf_size, ngroups, index_entry_size;
2686 guint8 *p, *buf;
2687 guint8 *data_p, *data_buf;
2688 guint32 *index_offsets;
2689
2690 ngroups = (noffsets + (group_size - 1)) / group_size;
2691
2692 index_offsets = g_new0 (guint32, ngroups);
2693
2694 buf_size = noffsets * 4;
2695 p = buf = (guint8 *)g_malloc0 (buf_size);
2696
2697 current_offset = 0;
2698 for (i = 0; i < noffsets; ++i) {
2699 //printf ("D: %d -> %d\n", i, offsets [i]);
2700 if ((i % group_size) == 0) {
2701 index_offsets [i / group_size] = p - buf;
2702 /* Emit the full value for these entries */
2703 encode_value (offsets [i], p, &p);
2704 } else {
2705 /* The offsets are allowed to be non-increasing */
2706 //g_assert (offsets [i] >= current_offset);
2707 encode_value (offsets [i] - current_offset, p, &p);
2708 }
2709 current_offset = offsets [i];
2710 }
2711 data_buf = buf;
2712 data_p = p;
2713
2714 if (ngroups && index_offsets [ngroups - 1] < 65000)
2715 index_entry_size = 2;
2716 else
2717 index_entry_size = 4;
2718
2719 buf_size = (data_p - data_buf) + (ngroups * 4) + 16;
2720 p = buf = (guint8 *)g_malloc0 (buf_size);
2721
2722 /* Emit the header */
2723 encode_int (noffsets, p, &p);
2724 encode_int (group_size, p, &p);
2725 encode_int (ngroups, p, &p);
2726 encode_int (index_entry_size, p, &p);
2727
2728 /* Emit the index */
2729 for (i = 0; i < ngroups; ++i) {
2730 if (index_entry_size == 2)
2731 encode_int16 (index_offsets [i], p, &p);
2732 else
2733 encode_int (index_offsets [i], p, &p);
2734 }
2735 /* Emit the data */
2736 memcpy (p, data_buf, data_p - data_buf);
2737 p += data_p - data_buf;
2738
2739 g_assert (p - buf <= buf_size);
2740
2741 emit_aot_data (acfg, table, symbol, buf, p - buf);
2742
2743 g_free (buf);
2744 g_free (data_buf);
2745
2746 return (int)(p - buf);
2747 }
2748
2749 static guint32
2750 get_image_index (MonoAotCompile *cfg, MonoImage *image)
2751 {
2752 guint32 index;
2753
2754 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
2755 if (index)
2756 return index - 1;
2757 else {
2758 index = g_hash_table_size (cfg->image_hash);
2759 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
2760 g_ptr_array_add (cfg->image_table, image);
2761 return index;
2762 }
2763 }
2764
2765 static guint32
2766 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
2767 {
2768 int i;
2769 int len = acfg->image->tables [MONO_TABLE_TYPESPEC].rows;
2770
2771 /* FIXME: Search referenced images as well */
2772 if (!acfg->typespec_classes) {
2773 acfg->typespec_classes = g_hash_table_new (NULL, NULL);
2774 for (i = 0; i < len; i++) {
2775 MonoError error;
2776 int typespec = MONO_TOKEN_TYPE_SPEC | (i + 1);
2777 MonoClass *klass_key = mono_class_get_and_inflate_typespec_checked (acfg->image, typespec, NULL, &error);
2778 if (!is_ok (&error)) {
2779 mono_error_cleanup (&error);
2780 continue;
2781 }
2782 g_hash_table_insert (acfg->typespec_classes, klass_key, GINT_TO_POINTER (typespec));
2783 }
2784 }
2785 return GPOINTER_TO_INT (g_hash_table_lookup (acfg->typespec_classes, klass));
2786 }
2787
2788 static void
2789 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
2790
2791 static void
2792 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf);
2793
2794 static void
2795 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf);
2796
2797 static void
2798 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf);
2799
2800 static void
2801 encode_klass_ref_inner (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
2802 {
2803 guint8 *p = buf;
2804
2805 /*
2806 * The encoding begins with one of the MONO_AOT_TYPEREF values, followed by additional
2807 * information.
2808 */
2809
2810 if (mono_class_is_ginst (klass)) {
2811 guint32 token;
2812 g_assert (klass->type_token);
2813
2814 /* Find a typespec for a class if possible */
2815 token = find_typespec_for_class (acfg, klass);
2816 if (token) {
2817 encode_value (MONO_AOT_TYPEREF_TYPESPEC_TOKEN, p, &p);
2818 encode_value (token, p, &p);
2819 } else {
2820 MonoClass *gclass = mono_class_get_generic_class (klass)->container_class;
2821 MonoGenericInst *inst = mono_class_get_generic_class (klass)->context.class_inst;
2822 static int count = 0;
2823 guint8 *p1 = p;
2824
2825 encode_value (MONO_AOT_TYPEREF_GINST, p, &p);
2826 encode_klass_ref (acfg, gclass, p, &p);
2827 encode_ginst (acfg, inst, p, &p);
2828
2829 count += p - p1;
2830 }
2831 } else if (klass->type_token) {
2832 int iindex = get_image_index (acfg, klass->image);
2833
2834 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
2835 if (iindex == 0) {
2836 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX, p, &p);
2837 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
2838 } else {
2839 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE, p, &p);
2840 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
2841 encode_value (get_image_index (acfg, klass->image), p, &p);
2842 }
2843 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
2844 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
2845 MonoGenericParam *par = klass->byval_arg.data.generic_param;
2846
2847 encode_value (MONO_AOT_TYPEREF_VAR, p, &p);
2848
2849 encode_value (par->gshared_constraint ? 1 : 0, p, &p);
2850 if (par->gshared_constraint) {
2851 MonoGSharedGenericParam *gpar = (MonoGSharedGenericParam*)par;
2852 encode_type (acfg, par->gshared_constraint, p, &p);
2853 encode_klass_ref (acfg, mono_class_from_generic_parameter (gpar->parent, NULL, klass->byval_arg.type == MONO_TYPE_MVAR), p, &p);
2854 } else {
2855 encode_value (klass->byval_arg.type, p, &p);
2856 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
2857
2858 encode_value (container->is_anonymous ? 0 : 1, p, &p);
2859
2860 if (!container->is_anonymous) {
2861 encode_value (container->is_method, p, &p);
2862 if (container->is_method)
2863 encode_method_ref (acfg, container->owner.method, p, &p);
2864 else
2865 encode_klass_ref (acfg, container->owner.klass, p, &p);
2866 }
2867 }
2868 } else if (klass->byval_arg.type == MONO_TYPE_PTR) {
2869 encode_value (MONO_AOT_TYPEREF_PTR, p, &p);
2870 encode_type (acfg, &klass->byval_arg, p, &p);
2871 } else {
2872 /* Array class */
2873 g_assert (klass->rank > 0);
2874 encode_value (MONO_AOT_TYPEREF_ARRAY, p, &p);
2875 encode_value (klass->rank, p, &p);
2876 encode_klass_ref (acfg, klass->element_class, p, &p);
2877 }
2878 *endbuf = p;
2879 }
2880
2881 /*
2882 * encode_klass_ref:
2883 *
2884 * Encode a reference to KLASS. We use our home-grown encoding instead of the
2885 * standard metadata encoding.
2886 */
2887 static void
2888 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
2889 {
2890 gboolean shared = FALSE;
2891
2892 /*
2893 * The encoding of generic instances is large so emit them only once.
2894 */
2895 if (mono_class_is_ginst (klass)) {
2896 guint32 token;
2897 g_assert (klass->type_token);
2898
2899 /* Find a typespec for a class if possible */
2900 token = find_typespec_for_class (acfg, klass);
2901 if (!token)
2902 shared = TRUE;
2903 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
2904 shared = TRUE;
2905 }
2906
2907 if (shared) {
2908 guint offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->klass_blob_hash, klass));
2909 guint8 *buf2, *p;
2910
2911 if (!offset) {
2912 buf2 = (guint8 *)g_malloc (1024);
2913 p = buf2;
2914
2915 encode_klass_ref_inner (acfg, klass, p, &p);
2916 g_assert (p - buf2 < 1024);
2917
2918 offset = add_to_blob (acfg, buf2, p - buf2);
2919 g_free (buf2);
2920
2921 g_hash_table_insert (acfg->klass_blob_hash, klass, GUINT_TO_POINTER (offset + 1));
2922 } else {
2923 offset --;
2924 }
2925
2926 p = buf;
2927 encode_value (MONO_AOT_TYPEREF_BLOB_INDEX, p, &p);
2928 encode_value (offset, p, &p);
2929 *endbuf = p;
2930 return;
2931 }
2932
2933 encode_klass_ref_inner (acfg, klass, buf, endbuf);
2934 }
2935
2936 static void
2937 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
2938 {
2939 guint32 token = mono_get_field_token (field);
2940 guint8 *p = buf;
2941
2942 encode_klass_ref (cfg, field->parent, p, &p);
2943 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
2944 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
2945 *endbuf = p;
2946 }
2947
2948 static void
2949 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf)
2950 {
2951 guint8 *p = buf;
2952 int i;
2953
2954 encode_value (inst->type_argc, p, &p);
2955 for (i = 0; i < inst->type_argc; ++i)
2956 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
2957 *endbuf = p;
2958 }
2959
2960 static void
2961 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
2962 {
2963 guint8 *p = buf;
2964 MonoGenericInst *inst;
2965
2966 inst = context->class_inst;
2967 if (inst) {
2968 g_assert (inst->type_argc);
2969 encode_ginst (acfg, inst, p, &p);
2970 } else {
2971 encode_value (0, p, &p);
2972 }
2973 inst = context->method_inst;
2974 if (inst) {
2975 g_assert (inst->type_argc);
2976 encode_ginst (acfg, inst, p, &p);
2977 } else {
2978 encode_value (0, p, &p);
2979 }
2980 *endbuf = p;
2981 }
2982
2983 static void
2984 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf)
2985 {
2986 guint8 *p = buf;
2987
2988 g_assert (t->num_mods == 0);
2989 /* t->attrs can be ignored */
2990 //g_assert (t->attrs == 0);
2991
2992 if (t->pinned) {
2993 *p = MONO_TYPE_PINNED;
2994 ++p;
2995 }
2996 if (t->byref) {
2997 *p = MONO_TYPE_BYREF;
2998 ++p;
2999 }
3000
3001 *p = t->type;
3002 p ++;
3003
3004 switch (t->type) {
3005 case MONO_TYPE_VOID:
3006 case MONO_TYPE_BOOLEAN:
3007 case MONO_TYPE_CHAR:
3008 case MONO_TYPE_I1:
3009 case MONO_TYPE_U1:
3010 case MONO_TYPE_I2:
3011 case MONO_TYPE_U2:
3012 case MONO_TYPE_I4:
3013 case MONO_TYPE_U4:
3014 case MONO_TYPE_I8:
3015 case MONO_TYPE_U8:
3016 case MONO_TYPE_R4:
3017 case MONO_TYPE_R8:
3018 case MONO_TYPE_I:
3019 case MONO_TYPE_U:
3020 case MONO_TYPE_STRING:
3021 case MONO_TYPE_OBJECT:
3022 case MONO_TYPE_TYPEDBYREF:
3023 break;
3024 case MONO_TYPE_VALUETYPE:
3025 case MONO_TYPE_CLASS:
3026 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
3027 break;
3028 case MONO_TYPE_SZARRAY:
3029 encode_klass_ref (acfg, t->data.klass, p, &p);
3030 break;
3031 case MONO_TYPE_PTR:
3032 encode_type (acfg, t->data.type, p, &p);
3033 break;
3034 case MONO_TYPE_GENERICINST: {
3035 MonoClass *gclass = t->data.generic_class->container_class;
3036 MonoGenericInst *inst = t->data.generic_class->context.class_inst;
3037
3038 encode_klass_ref (acfg, gclass, p, &p);
3039 encode_ginst (acfg, inst, p, &p);
3040 break;
3041 }
3042 case MONO_TYPE_ARRAY: {
3043 MonoArrayType *array = t->data.array;
3044 int i;
3045
3046 encode_klass_ref (acfg, array->eklass, p, &p);
3047 encode_value (array->rank, p, &p);
3048 encode_value (array->numsizes, p, &p);
3049 for (i = 0; i < array->numsizes; ++i)
3050 encode_value (array->sizes [i], p, &p);
3051 encode_value (array->numlobounds, p, &p);
3052 for (i = 0; i < array->numlobounds; ++i)
3053 encode_value (array->lobounds [i], p, &p);
3054 break;
3055 }
3056 case MONO_TYPE_VAR:
3057 case MONO_TYPE_MVAR:
3058 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
3059 break;
3060 default:
3061 g_assert_not_reached ();
3062 }
3063
3064 *endbuf = p;
3065 }
3066
3067 static void
3068 encode_signature (MonoAotCompile *acfg, MonoMethodSignature *sig, guint8 *buf, guint8 **endbuf)
3069 {
3070 guint8 *p = buf;
3071 guint32 flags = 0;
3072 int i;
3073
3074 /* Similar to the metadata encoding */
3075 if (sig->generic_param_count)
3076 flags |= 0x10;
3077 if (sig->hasthis)
3078 flags |= 0x20;
3079 if (sig->explicit_this)
3080 flags |= 0x40;
3081 flags |= (sig->call_convention & 0x0F);
3082
3083 *p = flags;
3084 ++p;
3085 if (sig->generic_param_count)
3086 encode_value (sig->generic_param_count, p, &p);
3087 encode_value (sig->param_count, p, &p);
3088
3089 encode_type (acfg, sig->ret, p, &p);
3090 for (i = 0; i < sig->param_count; ++i) {
3091 if (sig->sentinelpos == i) {
3092 *p = MONO_TYPE_SENTINEL;
3093 ++p;
3094 }
3095 encode_type (acfg, sig->params [i], p, &p);
3096 }
3097
3098 *endbuf = p;
3099 }
3100
3101 #define MAX_IMAGE_INDEX 250
3102
3103 static void
3104 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
3105 {
3106 guint32 image_index = get_image_index (acfg, method->klass->image);
3107 guint32 token = method->token;
3108 MonoJumpInfoToken *ji;
3109 guint8 *p = buf;
3110
3111 /*
3112 * The encoding for most methods is as follows:
3113 * - image index encoded as a leb128
3114 * - token index encoded as a leb128
3115 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
3116 * types of method encodings.
3117 */
3118
3119 /* Mark methods which can't use aot trampolines because they need the further
3120 * processing in mono_magic_trampoline () which requires a MonoMethod*.
3121 */
3122 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
3123 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
3124 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
3125
3126 if (method->wrapper_type) {
3127 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3128
3129 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
3130
3131 encode_value (method->wrapper_type, p, &p);
3132
3133 switch (method->wrapper_type) {
3134 case MONO_WRAPPER_REMOTING_INVOKE:
3135 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
3136 case MONO_WRAPPER_XDOMAIN_INVOKE: {
3137 MonoMethod *m;
3138
3139 m = mono_marshal_method_from_wrapper (method);
3140 g_assert (m);
3141 encode_method_ref (acfg, m, p, &p);
3142 break;
3143 }
3144 case MONO_WRAPPER_PROXY_ISINST:
3145 case MONO_WRAPPER_LDFLD:
3146 case MONO_WRAPPER_LDFLDA:
3147 case MONO_WRAPPER_STFLD:
3148 case MONO_WRAPPER_ISINST: {
3149 g_assert (info);
3150 encode_klass_ref (acfg, info->d.proxy.klass, p, &p);
3151 break;
3152 }
3153 case MONO_WRAPPER_ALLOC: {
3154 /* The GC name is saved once in MonoAotFileInfo */
3155 g_assert (info->d.alloc.alloc_type != -1);
3156 encode_value (info->d.alloc.alloc_type, p, &p);
3157 break;
3158 }
3159 case MONO_WRAPPER_WRITE_BARRIER: {
3160 g_assert (info);
3161 break;
3162 }
3163 case MONO_WRAPPER_STELEMREF: {
3164 g_assert (info);
3165 encode_value (info->subtype, p, &p);
3166 if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF)
3167 encode_value (info->d.virtual_stelemref.kind, p, &p);
3168 break;
3169 }
3170 case MONO_WRAPPER_UNKNOWN: {
3171 g_assert (info);
3172 encode_value (info->subtype, p, &p);
3173 if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE ||
3174 info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR)
3175 encode_klass_ref (acfg, method->klass, p, &p);
3176 else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
3177 encode_method_ref (acfg, info->d.synchronized_inner.method, p, &p);
3178 else if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR)
3179 encode_method_ref (acfg, info->d.array_accessor.method, p, &p);
3180 else if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG)
3181 encode_signature (acfg, info->d.gsharedvt.sig, p, &p);
3182 else if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG)
3183 encode_signature (acfg, info->d.gsharedvt.sig, p, &p);
3184 break;
3185 }
3186 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
3187 g_assert (info);
3188 encode_value (info->subtype, p, &p);
3189 if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
3190 strcpy ((char*)p, method->name);
3191 p += strlen (method->name) + 1;
3192 } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) {
3193 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
3194 } else {
3195 g_assert (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_PINVOKE);
3196 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
3197 }
3198 break;
3199 }
3200 case MONO_WRAPPER_SYNCHRONIZED: {
3201 MonoMethod *m;
3202
3203 m = mono_marshal_method_from_wrapper (method);
3204 g_assert (m);
3205 g_assert (m != method);
3206 encode_method_ref (acfg, m, p, &p);
3207 break;
3208 }
3209 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
3210 g_assert (info);
3211 encode_value (info->subtype, p, &p);
3212
3213 if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
3214 encode_value (info->d.element_addr.rank, p, &p);
3215 encode_value (info->d.element_addr.elem_size, p, &p);
3216 } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
3217 encode_method_ref (acfg, info->d.string_ctor.method, p, &p);
3218 } else {
3219 g_assert_not_reached ();
3220 }
3221 break;
3222 }
3223 case MONO_WRAPPER_CASTCLASS: {
3224 g_assert (info);
3225 encode_value (info->subtype, p, &p);
3226 break;
3227 }
3228 case MONO_WRAPPER_RUNTIME_INVOKE: {
3229 g_assert (info);
3230 encode_value (info->subtype, p, &p);
3231 if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL)
3232 encode_method_ref (acfg, info->d.runtime_invoke.method, p, &p);
3233 else if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL)
3234 encode_signature (acfg, info->d.runtime_invoke.sig, p, &p);
3235 break;
3236 }
3237 case MONO_WRAPPER_DELEGATE_INVOKE:
3238 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
3239 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
3240 if (method->is_inflated) {
3241 /* These wrappers are identified by their class */
3242 encode_value (1, p, &p);
3243 encode_klass_ref (acfg, method->klass, p, &p);
3244 } else {
3245 MonoMethodSignature *sig = mono_method_signature (method);
3246 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3247
3248 encode_value (0, p, &p);
3249 if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE)
3250 encode_value (info ? info->subtype : 0, p, &p);
3251 encode_signature (acfg, sig, p, &p);
3252 }
3253 break;
3254 }
3255 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
3256 g_assert (info);
3257 encode_method_ref (acfg, info->d.native_to_managed.method, p, &p);
3258 encode_klass_ref (acfg, info->d.native_to_managed.klass, p, &p);
3259 break;
3260 }
3261 default:
3262 g_assert_not_reached ();
3263 }
3264 } else if (mono_method_signature (method)->is_inflated) {
3265 /*
3266 * This is a generic method, find the original token which referenced it and
3267 * encode that.
3268 * Obtain the token from information recorded by the JIT.
3269 */
3270 ji = (MonoJumpInfoToken *)g_hash_table_lookup (acfg->token_info_hash, method);
3271 if (ji) {
3272 image_index = get_image_index (acfg, ji->image);
3273 g_assert (image_index < MAX_IMAGE_INDEX);
3274 token = ji->token;
3275
3276 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
3277 encode_value (image_index, p, &p);
3278 encode_value (token, p, &p);
3279 } else {
3280 MonoMethod *declaring;
3281 MonoGenericContext *context = mono_method_get_context (method);
3282
3283 g_assert (method->is_inflated);
3284 declaring = ((MonoMethodInflated*)method)->declaring;
3285
3286 /*
3287 * This might be a non-generic method of a generic instance, which
3288 * doesn't have a token since the reference is generated by the JIT
3289 * like Nullable:Box/Unbox, or by generic sharing.
3290 */
3291 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
3292 /* Encode the klass */
3293 encode_klass_ref (acfg, method->klass, p, &p);
3294 /* Encode the method */
3295 image_index = get_image_index (acfg, method->klass->image);
3296 g_assert (image_index < MAX_IMAGE_INDEX);
3297 g_assert (declaring->token);
3298 token = declaring->token;
3299 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
3300 encode_value (image_index, p, &p);
3301 encode_value (token, p, &p);
3302 encode_generic_context (acfg, context, p, &p);
3303 }
3304 } else if (token == 0) {
3305 /* This might be a method of a constructed type like int[,].Set */
3306 /* Obtain the token from information recorded by the JIT */
3307 ji = (MonoJumpInfoToken *)g_hash_table_lookup (acfg->token_info_hash, method);
3308 if (ji) {
3309 image_index = get_image_index (acfg, ji->image);
3310 g_assert (image_index < MAX_IMAGE_INDEX);
3311 token = ji->token;
3312
3313 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
3314 encode_value (image_index, p, &p);
3315 encode_value (token, p, &p);
3316 } else {
3317 /* Array methods */
3318 g_assert (method->klass->rank);
3319
3320 /* Encode directly */
3321 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
3322 encode_klass_ref (acfg, method->klass, p, &p);
3323 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
3324 encode_value (0, p, &p);
3325 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
3326 encode_value (1, p, &p);
3327 else if (!strcmp (method->name, "Get"))
3328 encode_value (2, p, &p);
3329 else if (!strcmp (method->name, "Address"))
3330 encode_value (3, p, &p);
3331 else if (!strcmp (method->name, "Set"))
3332 encode_value (4, p, &p);
3333 else
3334 g_assert_not_reached ();
3335 }
3336 } else {
3337 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
3338
3339 if (image_index >= MONO_AOT_METHODREF_MIN) {
3340 encode_value ((MONO_AOT_METHODREF_LARGE_IMAGE_INDEX << 24), p, &p);
3341 encode_value (image_index, p, &p);
3342 encode_value (mono_metadata_token_index (token), p, &p);
3343 } else {
3344 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
3345 }
3346 }
3347 *endbuf = p;
3348 }
3349
3350 static gint
3351 compare_patches (gconstpointer a, gconstpointer b)
3352 {
3353 int i, j;
3354
3355 i = (*(MonoJumpInfo**)a)->ip.i;
3356 j = (*(MonoJumpInfo**)b)->ip.i;
3357
3358 if (i < j)
3359 return -1;
3360 else
3361 if (i > j)
3362 return 1;
3363 else
3364 return 0;
3365 }
3366
3367 static G_GNUC_UNUSED char*
3368 patch_to_string (MonoJumpInfo *patch_info)
3369 {
3370 GString *str;
3371
3372 str = g_string_new ("");
3373
3374 g_string_append_printf (str, "%s(", get_patch_name (patch_info->type));
3375
3376 switch (patch_info->type) {
3377 case MONO_PATCH_INFO_VTABLE:
3378 mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE);
3379 break;
3380 default:
3381 break;
3382 }
3383 g_string_append_printf (str, ")");
3384 return g_string_free (str, FALSE);
3385 }
3386
3387 /*
3388 * is_plt_patch:
3389 *
3390 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
3391 * PLT entry.
3392 */
3393 static inline gboolean
3394 is_plt_patch (MonoJumpInfo *patch_info)
3395 {
3396 switch (patch_info->type) {
3397 case MONO_PATCH_INFO_METHOD:
3398 case MONO_PATCH_INFO_INTERNAL_METHOD:
3399 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3400 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3401 case MONO_PATCH_INFO_RGCTX_FETCH:
3402 return TRUE;
3403 default:
3404 return FALSE;
3405 }
3406 }
3407
3408 /*
3409 * get_plt_symbol:
3410 *
3411 * Return the symbol identifying the plt entry PLT_OFFSET.
3412 */
3413 static char*
3414 get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info)
3415 {
3416 #ifdef TARGET_MACH
3417 /*
3418 * The Apple linker reorganizes object files, so it doesn't like branches to local
3419 * labels, since those have no relocations.
3420 */
3421 return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset);
3422 #else
3423 return g_strdup_printf ("%sp_%d", acfg->temp_prefix, plt_offset);
3424 #endif
3425 }
3426
3427 /*
3428 * get_plt_entry:
3429 *
3430 * Return a PLT entry which belongs to the method identified by PATCH_INFO.
3431 */
3432 static MonoPltEntry*
3433 get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3434 {
3435 MonoPltEntry *res;
3436 gboolean synchronized = FALSE;
3437 static int synchronized_symbol_idx;
3438
3439 if (!is_plt_patch (patch_info))
3440 return NULL;
3441
3442 if (!acfg->patch_to_plt_entry [patch_info->type])
3443 acfg->patch_to_plt_entry [patch_info->type] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
3444 res = (MonoPltEntry *)g_hash_table_lookup (acfg->patch_to_plt_entry [patch_info->type], patch_info);
3445
3446 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
3447 /*
3448 * Allocate a separate PLT slot for each such patch, since some plt
3449 * entries will refer to the method itself, and some will refer to the
3450 * wrapper.
3451 */
3452 res = NULL;
3453 synchronized = TRUE;
3454 }
3455
3456 if (!res) {
3457 MonoJumpInfo *new_ji;
3458
3459 new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
3460
3461 res = (MonoPltEntry *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry));
3462 res->plt_offset = acfg->plt_offset;
3463 res->ji = new_ji;
3464 res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info);
3465 if (acfg->aot_opts.write_symbols)
3466 res->debug_sym = get_plt_entry_debug_sym (acfg, res->ji, acfg->plt_entry_debug_sym_cache);
3467 if (synchronized) {
3468 /* Avoid duplicate symbols because we don't cache */
3469 res->symbol = g_strdup_printf ("%s_%d", res->symbol, synchronized_symbol_idx);
3470 if (res->debug_sym)
3471 res->debug_sym = g_strdup_printf ("%s_%d", res->debug_sym, synchronized_symbol_idx);
3472 synchronized_symbol_idx ++;
3473 }
3474 if (res->debug_sym)
3475 res->llvm_symbol = g_strdup_printf ("%s_%s_llvm", res->symbol, res->debug_sym);
3476 else
3477 res->llvm_symbol = g_strdup_printf ("%s_llvm", res->symbol);
3478
3479 g_hash_table_insert (acfg->patch_to_plt_entry [new_ji->type], new_ji, res);
3480
3481 g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res);
3482
3483 //g_assert (mono_patch_info_equal (patch_info, new_ji));
3484 //mono_print_ji (patch_info); printf ("\n");
3485 //g_hash_table_print_stats (acfg->patch_to_plt_entry);
3486
3487 acfg->plt_offset ++;
3488 }
3489
3490 return res;
3491 }
3492
3493 /**
3494 * get_got_offset:
3495 *
3496 * Returns the offset of the GOT slot where the runtime object resulting from resolving
3497 * JI could be found if it exists, otherwise allocates a new one.
3498 */
3499 static guint32
3500 get_got_offset (MonoAotCompile *acfg, gboolean llvm, MonoJumpInfo *ji)
3501 {
3502 guint32 got_offset;
3503 GotInfo *info = llvm ? &acfg->llvm_got_info : &acfg->got_info;
3504
3505 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (info->patch_to_got_offset_by_type [ji->type], ji));
3506 if (got_offset)
3507 return got_offset - 1;
3508
3509 if (llvm) {
3510 got_offset = acfg->llvm_got_offset;
3511 acfg->llvm_got_offset ++;
3512 } else {
3513 got_offset = acfg->got_offset;
3514 acfg->got_offset ++;
3515 }
3516
3517 acfg->stats.got_slots ++;
3518 acfg->stats.got_slot_types [ji->type] ++;
3519
3520 g_hash_table_insert (info->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
3521 g_hash_table_insert (info->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
3522 g_ptr_array_add (info->got_patches, ji);
3523
3524 return got_offset;
3525 }
3526
3527 /* Add a method to the list of methods which need to be emitted */
3528 static void
3529 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
3530 {
3531 g_assert (method);
3532 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
3533 g_ptr_array_add (acfg->methods, method);
3534 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
3535 acfg->nmethods = acfg->methods->len + 1;
3536 }
3537
3538 if (method->wrapper_type || extra)
3539 g_ptr_array_add (acfg->extra_methods, method);
3540 }
3541
3542 static gboolean
3543 prefer_gsharedvt_method (MonoAotCompile *acfg, MonoMethod *method)
3544 {
3545 /* One instantiation with valuetypes is generated for each async method */
3546 if (method->klass->image == mono_defaults.corlib && (!strcmp (method->klass->name, "AsyncMethodBuilderCore") || !strcmp (method->klass->name, "AsyncVoidMethodBuilder")))
3547 return TRUE;
3548 else
3549 return FALSE;
3550 }
3551
3552 static guint32
3553 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
3554 {
3555 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
3556
3557 g_assert (index);
3558
3559 return index - 1;
3560 }
3561
3562 static int
3563 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
3564 {
3565 int index;
3566
3567 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
3568 if (index)
3569 return index - 1;
3570
3571 index = acfg->method_index;
3572 add_method_with_index (acfg, method, index, extra);
3573
3574 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (index));
3575
3576 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
3577
3578 acfg->method_index ++;
3579
3580 return index;
3581 }
3582
3583 static int
3584 add_method (MonoAotCompile *acfg, MonoMethod *method)
3585 {
3586 return add_method_full (acfg, method, FALSE, 0);
3587 }
3588
3589 static void
3590 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
3591 {
3592 if (mono_method_is_generic_sharable_full (method, TRUE, TRUE, FALSE))
3593 method = mini_get_shared_method (method);
3594 else if ((acfg->opts & MONO_OPT_GSHAREDVT) && prefer_gsharedvt_method (acfg, method) && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE))
3595 /* Use the gsharedvt version */
3596 method = mini_get_shared_method_full (method, TRUE, TRUE);
3597
3598 if (acfg->aot_opts.log_generics)
3599 aot_printf (acfg, "%*sAdding method %s.\n", depth, "", mono_method_get_full_name (method));
3600
3601 add_method_full (acfg, method, TRUE, depth);
3602 }
3603
3604 static void
3605 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
3606 {
3607 add_extra_method_with_depth (acfg, method, 0);
3608 }
3609
3610 static void
3611 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
3612 {
3613 MonoAotCompile *acfg = (MonoAotCompile *)user_data;
3614 MonoJitICallInfo *callinfo = (MonoJitICallInfo *)value;
3615 MonoMethod *wrapper;
3616 char *name;
3617
3618 if (!callinfo->sig)
3619 return;
3620
3621 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
3622 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, TRUE);
3623 g_free (name);
3624
3625 add_method (acfg, wrapper);
3626 }
3627
3628 static MonoMethod*
3629 get_runtime_invoke_sig (MonoMethodSignature *sig)
3630 {
3631 MonoMethodBuilder *mb;
3632 MonoMethod *m;
3633
3634 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
3635 m = mono_mb_create_method (mb, sig, 16);
3636 MonoMethod *invoke = mono_marshal_get_runtime_invoke (m, FALSE);
3637 mono_mb_free (mb);
3638 return invoke;
3639 }
3640
3641 static MonoMethod*
3642 get_runtime_invoke (MonoAotCompile *acfg, MonoMethod *method, gboolean virtual_)
3643 {
3644 return mono_marshal_get_runtime_invoke (method, virtual_);
3645 }
3646
3647 static gboolean
3648 can_marshal_struct (MonoClass *klass)
3649 {
3650 MonoClassField *field;
3651 gboolean can_marshal = TRUE;
3652 gpointer iter = NULL;
3653 MonoMarshalType *info;
3654 int i;
3655
3656 if (mono_class_is_auto_layout (klass))
3657 return FALSE;
3658
3659 info = mono_marshal_load_type_info (klass);
3660
3661 /* Only allow a few field types to avoid asserts in the marshalling code */
3662 while ((field = mono_class_get_fields (klass, &iter))) {
3663 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
3664 continue;
3665
3666 switch (field->type->type) {
3667 case MONO_TYPE_I4:
3668 case MONO_TYPE_U4:
3669 case MONO_TYPE_I1:
3670 case MONO_TYPE_U1:
3671 case MONO_TYPE_BOOLEAN:
3672 case MONO_TYPE_I2:
3673 case MONO_TYPE_U2:
3674 case MONO_TYPE_CHAR:
3675 case MONO_TYPE_I8:
3676 case MONO_TYPE_U8:
3677 case MONO_TYPE_I:
3678 case MONO_TYPE_U:
3679 case MONO_TYPE_PTR:
3680 case MONO_TYPE_R4:
3681 case MONO_TYPE_R8:
3682 case MONO_TYPE_STRING:
3683 break;
3684 case MONO_TYPE_VALUETYPE:
3685 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
3686 can_marshal = FALSE;
3687 break;
3688 case MONO_TYPE_SZARRAY: {
3689 gboolean has_mspec = FALSE;
3690
3691 if (info) {
3692 for (i = 0; i < info->num_fields; ++i) {
3693 if (info->fields [i].field == field && info->fields [i].mspec)
3694 has_mspec = TRUE;
3695 }
3696 }
3697 if (!has_mspec)
3698 can_marshal = FALSE;
3699 break;
3700 }
3701 default:
3702 can_marshal = FALSE;
3703 break;
3704 }
3705 }
3706
3707 /* Special cases */
3708 /* Its hard to compute whenever these can be marshalled or not */
3709 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs") && strcmp (klass->name, "sockaddr_dl"))
3710 return TRUE;
3711
3712 return can_marshal;
3713 }
3714
3715 static void
3716 create_gsharedvt_inst (MonoAotCompile *acfg, MonoMethod *method, MonoGenericContext *ctx)
3717 {
3718 /* Create a vtype instantiation */
3719 MonoGenericContext shared_context;
3720 MonoType **args;
3721 MonoGenericInst *inst;
3722 MonoGenericContainer *container;
3723 MonoClass **constraints;
3724 int i;
3725
3726 memset (ctx, 0, sizeof (MonoGenericContext));
3727
3728 if (mono_class_is_gtd (method->klass)) {
3729 shared_context = mono_class_get_generic_container (method->klass)->context;
3730 inst = shared_context.class_inst;
3731
3732 args = g_new0 (MonoType*, inst->type_argc);
3733 for (i = 0; i < inst->type_argc; ++i) {
3734 args [i] = &mono_defaults.int_class->byval_arg;
3735 }
3736 ctx->class_inst = mono_metadata_get_generic_inst (inst->type_argc, args);
3737 }
3738 if (method->is_generic) {
3739 container = mono_method_get_generic_container (method);
3740 shared_context = container->context;
3741 inst = shared_context.method_inst;
3742
3743 args = g_new0 (MonoType*, inst->type_argc);
3744 for (i = 0; i < container->type_argc; ++i) {
3745 MonoGenericParamInfo *info = &container->type_params [i].info;
3746 gboolean ref_only = FALSE;
3747
3748 if (info && info->constraints) {
3749 constraints = info->constraints;
3750
3751 while (*constraints) {
3752 MonoClass *cklass = *constraints;
3753 if (!(cklass == mono_defaults.object_class || (cklass->image == mono_defaults.corlib && !strcmp (cklass->name, "ValueType"))))
3754 /* Inflaring the method with our vtype would not be valid */
3755 ref_only = TRUE;
3756 constraints ++;
3757 }
3758 }
3759
3760 if (ref_only)
3761 args [i] = &mono_defaults.object_class->byval_arg;
3762 else
3763 args [i] = &mono_defaults.int_class->byval_arg;
3764 }
3765 ctx->method_inst = mono_metadata_get_generic_inst (inst->type_argc, args);
3766 }
3767 }
3768
3769 static void
3770 add_wrappers (MonoAotCompile *acfg)
3771 {
3772 MonoMethod *method, *m;
3773 int i, j;
3774 MonoMethodSignature *sig, *csig;
3775 guint32 token;
3776
3777 /*
3778 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
3779 * so there is only one wrapper of a given type, or inlining their contents into their
3780 * callers.
3781 */
3782 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3783 MonoError error;
3784 MonoMethod *method;
3785 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3786 gboolean skip = FALSE;
3787
3788 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
3789 report_loader_error (acfg, &error, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error));
3790
3791 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3792 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3793 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
3794 skip = TRUE;
3795
3796 /* Skip methods which can not be handled by get_runtime_invoke () */
3797 sig = mono_method_signature (method);
3798 if (!sig)
3799 continue;
3800 if ((sig->ret->type == MONO_TYPE_PTR) ||
3801 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
3802 skip = TRUE;
3803 if (mono_class_is_open_constructed_type (sig->ret))
3804 skip = TRUE;
3805
3806 for (j = 0; j < sig->param_count; j++) {
3807 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
3808 skip = TRUE;
3809 if (mono_class_is_open_constructed_type (sig->params [j]))
3810 skip = TRUE;
3811 }
3812
3813 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
3814 if (!mono_class_is_contextbound (method->klass)) {
3815 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
3816 gboolean has_nullable = FALSE;
3817
3818 for (j = 0; j < sig->param_count; j++) {
3819 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
3820 has_nullable = TRUE;
3821 }
3822
3823 if (info && !has_nullable && !acfg->aot_opts.llvm_only) {
3824 /* Supported by the dynamic runtime-invoke wrapper */
3825 skip = TRUE;
3826 }
3827 if (info)
3828 mono_arch_dyn_call_free (info);
3829 }
3830 #endif
3831
3832 if (acfg->aot_opts.llvm_only)
3833 /* Supported by the gsharedvt based runtime-invoke wrapper */
3834 skip = TRUE;
3835
3836 if (!skip) {
3837 //printf ("%s\n", mono_method_full_name (method, TRUE));
3838 add_method (acfg, get_runtime_invoke (acfg, method, FALSE));
3839 }
3840 }
3841
3842 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3843 int nallocators;
3844
3845 /* Runtime invoke wrappers */
3846
3847 /* void runtime-invoke () [.cctor] */
3848 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3849 csig->ret = &mono_defaults.void_class->byval_arg;
3850 add_method (acfg, get_runtime_invoke_sig (csig));
3851
3852 /* void runtime-invoke () [Finalize] */
3853 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3854 csig->hasthis = 1;
3855 csig->ret = &mono_defaults.void_class->byval_arg;
3856 add_method (acfg, get_runtime_invoke_sig (csig));
3857
3858 /* void runtime-invoke (string) [exception ctor] */
3859 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
3860 csig->hasthis = 1;
3861 csig->ret = &mono_defaults.void_class->byval_arg;
3862 csig->params [0] = &mono_defaults.string_class->byval_arg;
3863 add_method (acfg, get_runtime_invoke_sig (csig));
3864
3865 /* void runtime-invoke (string, string) [exception ctor] */
3866 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
3867 csig->hasthis = 1;
3868 csig->ret = &mono_defaults.void_class->byval_arg;
3869 csig->params [0] = &mono_defaults.string_class->byval_arg;
3870 csig->params [1] = &mono_defaults.string_class->byval_arg;
3871 add_method (acfg, get_runtime_invoke_sig (csig));
3872
3873 /* string runtime-invoke () [Exception.ToString ()] */
3874 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3875 csig->hasthis = 1;
3876 csig->ret = &mono_defaults.string_class->byval_arg;
3877 add_method (acfg, get_runtime_invoke_sig (csig));
3878
3879 /* void runtime-invoke (string, Exception) [exception ctor] */
3880 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
3881 csig->hasthis = 1;
3882 csig->ret = &mono_defaults.void_class->byval_arg;
3883 csig->params [0] = &mono_defaults.string_class->byval_arg;
3884 csig->params [1] = &mono_defaults.exception_class->byval_arg;
3885 add_method (acfg, get_runtime_invoke_sig (csig));
3886
3887 /* Assembly runtime-invoke (string, Assembly, bool) [DoAssemblyResolve] */
3888 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
3889 csig->hasthis = 1;
3890 csig->ret = &(mono_class_load_from_name (
3891 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
3892 csig->params [0] = &mono_defaults.string_class->byval_arg;
3893 csig->params [1] = &(mono_class_load_from_name (mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
3894 csig->params [2] = &mono_defaults.boolean_class->byval_arg;
3895 add_method (acfg, get_runtime_invoke_sig (csig));
3896
3897 /* runtime-invoke used by finalizers */
3898 add_method (acfg, get_runtime_invoke (acfg, mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
3899
3900 /* This is used by mono_runtime_capture_context () */
3901 method = mono_get_context_capture_method ();
3902 if (method)
3903 add_method (acfg, get_runtime_invoke (acfg, method, FALSE));
3904
3905 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
3906 if (!acfg->aot_opts.llvm_only)
3907 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
3908 #endif
3909
3910 /* These are used by mono_jit_runtime_invoke () to calls gsharedvt out wrappers */
3911 if (acfg->aot_opts.llvm_only) {
3912 int variants;
3913
3914 /* Create simplified signatures which match the signature used by the gsharedvt out wrappers */
3915 for (variants = 0; variants < 4; ++variants) {
3916 for (i = 0; i < 16; ++i) {
3917 sig = mini_get_gsharedvt_out_sig_wrapper_signature ((variants & 1) > 0, (variants & 2) > 0, i);
3918 add_extra_method (acfg, mono_marshal_get_runtime_invoke_for_sig (sig));
3919
3920 g_free (sig);
3921 }
3922 }
3923 }
3924
3925 /* stelemref */
3926 add_method (acfg, mono_marshal_get_stelemref ());
3927
3928 if (MONO_ARCH_HAVE_TLS_GET) {
3929 /* Managed Allocators */
3930 nallocators = mono_gc_get_managed_allocator_types ();
3931 for (i = 0; i < nallocators; ++i) {
3932 if ((m = mono_gc_get_managed_allocator_by_type (i, MANAGED_ALLOCATOR_REGULAR)))
3933 add_method (acfg, m);
3934 if ((m = mono_gc_get_managed_allocator_by_type (i, MANAGED_ALLOCATOR_SLOW_PATH)))
3935 add_method (acfg, m);
3936 }
3937 }
3938
3939 /* write barriers */
3940 if (mono_gc_is_moving ()) {
3941 add_method (acfg, mono_gc_get_specific_write_barrier (FALSE));
3942 add_method (acfg, mono_gc_get_specific_write_barrier (TRUE));
3943 }
3944
3945 /* Stelemref wrappers */
3946 {
3947 MonoMethod **wrappers;
3948 int nwrappers;
3949
3950 wrappers = mono_marshal_get_virtual_stelemref_wrappers (&nwrappers);
3951 for (i = 0; i < nwrappers; ++i)
3952 add_method (acfg, wrappers [i]);
3953 g_free (wrappers);
3954 }
3955
3956 /* castclass_with_check wrapper */
3957 add_method (acfg, mono_marshal_get_castclass_with_cache ());
3958 /* isinst_with_check wrapper */
3959 add_method (acfg, mono_marshal_get_isinst_with_cache ());
3960
3961 /* JIT icall wrappers */
3962 /* FIXME: locking - this is "safe" as full-AOT threads don't mutate the icall hash*/
3963 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
3964 }
3965
3966 /*
3967 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
3968 * we use the original method instead at runtime.
3969 * Since full-aot doesn't support remoting, this is not a problem.
3970 */
3971 #if 0
3972 /* remoting-invoke wrappers */
3973 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3974 MonoError error;
3975 MonoMethodSignature *sig;
3976
3977 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3978 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
3979 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3980
3981 sig = mono_method_signature (method);
3982
3983 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
3984 m = mono_marshal_get_remoting_invoke_with_check (method);
3985
3986 add_method (acfg, m);
3987 }
3988 }
3989 #endif
3990
3991 /* delegate-invoke wrappers */
3992 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3993 MonoError error;
3994 MonoClass *klass;
3995 MonoCustomAttrInfo *cattr;
3996
3997 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3998 klass = mono_class_get_checked (acfg->image, token, &error);
3999
4000 if (!klass) {
4001 mono_error_cleanup (&error);
4002 continue;
4003 }
4004
4005 if (!klass->delegate || klass == mono_defaults.delegate_class || klass == mono_defaults.multicastdelegate_class)
4006 continue;
4007
4008 if (!mono_class_is_gtd (klass)) {
4009 method = mono_get_delegate_invoke (klass);
4010
4011 m = mono_marshal_get_delegate_invoke (method, NULL);
4012
4013 add_method (acfg, m);
4014
4015 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
4016 if (method)
4017 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
4018
4019 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
4020 if (method)
4021 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
4022
4023 cattr = mono_custom_attrs_from_class_checked (klass, &error);
4024 if (!is_ok (&error)) {
4025 mono_error_cleanup (&error);
4026 continue;
4027 }
4028
4029 if (cattr) {
4030 int j;
4031
4032 for (j = 0; j < cattr->num_attrs; ++j)
4033 if (cattr->attrs [j].ctor && (!strcmp (cattr->attrs [j].ctor->klass->name, "MonoNativeFunctionWrapperAttribute") || !strcmp (cattr->attrs [j].ctor->klass->name, "UnmanagedFunctionPointerAttribute")))
4034 break;
4035 if (j < cattr->num_attrs) {
4036 MonoMethod *invoke;
4037 MonoMethod *wrapper;
4038 MonoMethod *del_invoke;
4039
4040 /* Add wrappers needed by mono_ftnptr_to_delegate () */
4041 invoke = mono_get_delegate_invoke (klass);
4042 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
4043 del_invoke = mono_marshal_get_delegate_invoke_internal (invoke, FALSE, TRUE, wrapper);
4044 add_method (acfg, wrapper);
4045 add_method (acfg, del_invoke);
4046 }
4047 }
4048 } else if ((acfg->opts & MONO_OPT_GSHAREDVT) && mono_class_is_gtd (klass)) {
4049 MonoError error;
4050 MonoGenericContext ctx;
4051 MonoMethod *inst, *gshared;
4052
4053 /*
4054 * Emit gsharedvt versions of the generic delegate-invoke wrappers
4055 */
4056 /* Invoke */
4057 method = mono_get_delegate_invoke (klass);
4058 create_gsharedvt_inst (acfg, method, &ctx);
4059
4060 inst = mono_class_inflate_generic_method_checked (method, &ctx, &error);
4061 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4062
4063 m = mono_marshal_get_delegate_invoke (inst, NULL);
4064 g_assert (m->is_inflated);
4065
4066 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
4067 add_extra_method (acfg, gshared);
4068
4069 /* begin-invoke */
4070 method = mono_get_delegate_begin_invoke (klass);
4071 create_gsharedvt_inst (acfg, method, &ctx);
4072
4073 inst = mono_class_inflate_generic_method_checked (method, &ctx, &error);
4074 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4075
4076 m = mono_marshal_get_delegate_begin_invoke (inst);
4077 g_assert (m->is_inflated);
4078
4079 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
4080 add_extra_method (acfg, gshared);
4081
4082 /* end-invoke */
4083 method = mono_get_delegate_end_invoke (klass);
4084 create_gsharedvt_inst (acfg, method, &ctx);
4085
4086 inst = mono_class_inflate_generic_method_checked (method, &ctx, &error);
4087 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4088
4089 m = mono_marshal_get_delegate_end_invoke (inst);
4090 g_assert (m->is_inflated);
4091
4092 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
4093 add_extra_method (acfg, gshared);
4094
4095 }
4096 }
4097
4098 /* array access wrappers */
4099 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
4100 MonoError error;
4101 MonoClass *klass;
4102
4103 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
4104 klass = mono_class_get_checked (acfg->image, token, &error);
4105
4106 if (!klass) {
4107 mono_error_cleanup (&error);
4108 continue;
4109 }
4110
4111 if (klass->rank && MONO_TYPE_IS_PRIMITIVE (&klass->element_class->byval_arg)) {
4112 MonoMethod *m, *wrapper;
4113
4114 /* Add runtime-invoke wrappers too */
4115
4116 m = mono_class_get_method_from_name (klass, "Get", -1);
4117 g_assert (m);
4118 wrapper = mono_marshal_get_array_accessor_wrapper (m);
4119 add_extra_method (acfg, wrapper);
4120 if (!acfg->aot_opts.llvm_only)
4121 add_extra_method (acfg, get_runtime_invoke (acfg, wrapper, FALSE));
4122
4123 m = mono_class_get_method_from_name (klass, "Set", -1);
4124 g_assert (m);
4125 wrapper = mono_marshal_get_array_accessor_wrapper (m);
4126 add_extra_method (acfg, wrapper);
4127 if (!acfg->aot_opts.llvm_only)
4128 add_extra_method (acfg, get_runtime_invoke (acfg, wrapper, FALSE));
4129 }
4130 }
4131
4132 /* Synchronized wrappers */
4133 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4134 MonoError error;
4135 token = MONO_TOKEN_METHOD_DEF | (i + 1);
4136 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
4137 report_loader_error (acfg, &error, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error));
4138
4139 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
4140 if (method->is_generic) {
4141 // FIXME:
4142 } else if ((acfg->opts & MONO_OPT_GSHAREDVT) && mono_class_is_gtd (method->klass)) {
4143 MonoError error;
4144 MonoGenericContext ctx;
4145 MonoMethod *inst, *gshared, *m;
4146
4147 /*
4148 * Create a generic wrapper for a generic instance, and AOT that.
4149 */
4150 create_gsharedvt_inst (acfg, method, &ctx);
4151 inst = mono_class_inflate_generic_method_checked (method, &ctx, &error);
4152 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4153 m = mono_marshal_get_synchronized_wrapper (inst);
4154 g_assert (m->is_inflated);
4155 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
4156 add_method (acfg, gshared);
4157 } else {
4158 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
4159 }
4160 }
4161 }
4162
4163 /* pinvoke wrappers */
4164 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4165 MonoError error;
4166 MonoMethod *method;
4167 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
4168
4169 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
4170 report_loader_error (acfg, &error, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error));
4171
4172 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4173 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
4174 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
4175 }
4176
4177 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
4178 if (acfg->aot_opts.llvm_only) {
4179 /* The wrappers have a different signature (hasthis is not set) so need to add this too */
4180 add_gsharedvt_wrappers (acfg, mono_method_signature (method), FALSE, TRUE);
4181 }
4182 }
4183 }
4184
4185 /* native-to-managed wrappers */
4186 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4187 MonoError error;
4188 MonoMethod *method;
4189 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
4190 MonoCustomAttrInfo *cattr;
4191 int j;
4192
4193 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
4194 report_loader_error (acfg, &error, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error));
4195
4196 /*
4197 * Only generate native-to-managed wrappers for methods which have an
4198 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
4199 * name to avoid defining a new assembly to contain it.
4200 */
4201 cattr = mono_custom_attrs_from_method_checked (method, &error);
4202 if (!is_ok (&error)) {
4203 char *name = mono_method_get_full_name (method);
4204 report_loader_error (acfg, &error, "Failed to load custom attributes from method %s due to %s\n", name, mono_error_get_message (&error));
4205 g_free (name);
4206 }
4207
4208 if (cattr) {
4209 for (j = 0; j < cattr->num_attrs; ++j)
4210 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
4211 break;
4212 if (j < cattr->num_attrs) {
4213 MonoCustomAttrEntry *e = &cattr->attrs [j];
4214 MonoMethodSignature *sig = mono_method_signature (e->ctor);
4215 const char *p = (const char*)e->data;
4216 const char *named;
4217 int slen, num_named, named_type;
4218 char *n;
4219 MonoType *t;
4220 MonoClass *klass;
4221 char *export_name = NULL;
4222 MonoMethod *wrapper;
4223
4224 /* this cannot be enforced by the C# compiler so we must give the user some warning before aborting */
4225 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
4226 g_warning ("AOT restriction: Method '%s' must be static since it is decorated with [MonoPInvokeCallback]. See http://ios.xamarin.com/Documentation/Limitations#Reverse_Callbacks",
4227 mono_method_full_name (method, TRUE));
4228 exit (1);
4229 }
4230
4231 g_assert (sig->param_count == 1);
4232 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
4233
4234 /*
4235 * Decode the cattr manually since we can't create objects
4236 * during aot compilation.
4237 */
4238
4239 /* Skip prolog */
4240 p += 2;
4241
4242 /* From load_cattr_value () in reflection.c */
4243 slen = mono_metadata_decode_value (p, &p);
4244 n = (char *)g_memdup (p, slen + 1);
4245 n [slen] = 0;
4246 t = mono_reflection_type_from_name_checked (n, acfg->image, &error);
4247 g_assert (t);
4248 mono_error_assert_ok (&error);
4249 g_free (n);
4250
4251 klass = mono_class_from_mono_type (t);
4252 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
4253
4254 p += slen;
4255
4256 num_named = read16 (p);
4257 p += 2;
4258
4259 g_assert (num_named < 2);
4260 if (num_named == 1) {
4261 int name_len;
4262 char *name;
4263
4264 /* parse ExportSymbol attribute */
4265 named = p;
4266 named_type = *named;
4267 named += 1;
4268 /* data_type = *named; */
4269 named += 1;
4270
4271 name_len = mono_metadata_decode_blob_size (named, &named);
4272 name = (char *)g_malloc (name_len + 1);
4273 memcpy (name, named, name_len);
4274 name [name_len] = 0;
4275 named += name_len;
4276
4277 g_assert (named_type == 0x54);
4278 g_assert (!strcmp (name, "ExportSymbol"));
4279
4280 /* load_cattr_value (), string case */
4281 g_assert (*named != (char)0xff);
4282 slen = mono_metadata_decode_value (named, &named);
4283 export_name = (char *)g_malloc (slen + 1);
4284 memcpy (export_name, named, slen);
4285 export_name [slen] = 0;
4286 named += slen;
4287 }
4288
4289 wrapper = mono_marshal_get_managed_wrapper (method, klass, 0);
4290 add_method (acfg, wrapper);
4291 if (export_name)
4292 g_hash_table_insert (acfg->export_names, wrapper, export_name);
4293 }
4294 g_free (cattr);
4295 }
4296
4297 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4298 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
4299 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
4300 }
4301 }
4302
4303 /* StructureToPtr/PtrToStructure wrappers */
4304 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4305 MonoError error;
4306 MonoClass *klass;
4307
4308 token = MONO_TOKEN_TYPE_DEF | (i + 1);
4309 klass = mono_class_get_checked (acfg->image, token, &error);
4310
4311 if (!klass) {
4312 mono_error_cleanup (&error);
4313 continue;
4314 }
4315
4316 if (klass->valuetype && !mono_class_is_gtd (klass) && can_marshal_struct (klass) &&
4317 !(klass->nested_in && strstr (klass->nested_in->name, "<PrivateImplementationDetails>") == klass->nested_in->name)) {
4318 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
4319 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
4320 }
4321 }
4322 }
4323
4324 static gboolean
4325 has_type_vars (MonoClass *klass)
4326 {
4327 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
4328 return TRUE;
4329 if (klass->rank)
4330 return has_type_vars (klass->element_class);
4331 if (mono_class_is_ginst (klass)) {
4332 MonoGenericContext *context = &mono_class_get_generic_class (klass)->context;
4333 if (context->class_inst) {
4334 int i;
4335
4336 for (i = 0; i < context->class_inst->type_argc; ++i)
4337 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
4338 return TRUE;
4339 }
4340 }
4341 if (mono_class_is_gtd (klass))
4342 return TRUE;
4343 return FALSE;
4344 }
4345
4346 static gboolean
4347 is_vt_inst (MonoGenericInst *inst)
4348 {
4349 int i;
4350
4351 for (i = 0; i < inst->type_argc; ++i) {
4352 MonoType *t = inst->type_argv [i];
4353 if (MONO_TYPE_ISSTRUCT (t) || t->type == MONO_TYPE_VALUETYPE)
4354 return TRUE;
4355 }
4356 return FALSE;
4357 }
4358
4359 static gboolean
4360 method_has_type_vars (MonoMethod *method)
4361 {
4362 if (has_type_vars (method->klass))
4363 return TRUE;
4364
4365 if (method->is_inflated) {
4366 MonoGenericContext *context = mono_method_get_context (method);
4367 if (context->method_inst) {
4368 int i;
4369
4370 for (i = 0; i < context->method_inst->type_argc; ++i)
4371 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
4372 return TRUE;
4373 }
4374 }
4375 return FALSE;
4376 }
4377
4378 static
4379 gboolean mono_aot_mode_is_full (MonoAotOptions *opts)
4380 {
4381 return opts->mode == MONO_AOT_MODE_FULL;
4382 }
4383
4384 static
4385 gboolean mono_aot_mode_is_hybrid (MonoAotOptions *opts)
4386 {
4387 return opts->mode == MONO_AOT_MODE_HYBRID;
4388 }
4389
4390 static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref);
4391
4392 static void
4393 add_generic_class (MonoAotCompile *acfg, MonoClass *klass, gboolean force, const char *ref)
4394 {
4395 /* This might lead to a huge code blowup so only do it if neccesary */
4396 if (!mono_aot_mode_is_full (&acfg->aot_opts) && !mono_aot_mode_is_hybrid (&acfg->aot_opts) && !force)
4397 return;
4398
4399 add_generic_class_with_depth (acfg, klass, 0, ref);
4400 }
4401
4402 static gboolean
4403 check_type_depth (MonoType *t, int depth)
4404 {
4405 int i;
4406
4407 if (depth > 8)
4408 return TRUE;
4409
4410 switch (t->type) {
4411 case MONO_TYPE_GENERICINST: {
4412 MonoGenericClass *gklass = t->data.generic_class;
4413 MonoGenericInst *ginst = gklass->context.class_inst;
4414
4415 if (ginst) {
4416 for (i = 0; i < ginst->type_argc; ++i) {
4417 if (check_type_depth (ginst->type_argv [i], depth + 1))
4418 return TRUE;
4419 }
4420 }
4421 break;
4422 }
4423 default:
4424 break;
4425 }
4426
4427 return FALSE;
4428 }
4429
4430 static void
4431 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method);
4432
4433 /*
4434 * add_generic_class:
4435 *
4436 * Add all methods of a generic class.
4437 */
4438 static void
4439 add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref)
4440 {
4441 MonoMethod *method;
4442 MonoClassField *field;
4443 gpointer iter;
4444 gboolean use_gsharedvt = FALSE;
4445
4446 if (!acfg->ginst_hash)
4447 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
4448
4449 mono_class_init (klass);
4450
4451 if (mono_class_is_ginst (klass) && mono_class_get_generic_class (klass)->context.class_inst->is_open)
4452 return;
4453
4454 if (has_type_vars (klass))
4455 return;
4456
4457 if (!mono_class_is_ginst (klass) && !klass->rank)
4458 return;
4459
4460 if (mono_class_has_failure (klass))
4461 return;
4462
4463 if (!acfg->ginst_hash)
4464 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
4465
4466 if (g_hash_table_lookup (acfg->ginst_hash, klass))
4467 return;
4468
4469 if (check_type_depth (&klass->byval_arg, 0))
4470 return;
4471
4472 if (acfg->aot_opts.log_generics)
4473 aot_printf (acfg, "%*sAdding generic instance %s [%s].\n", depth, "", mono_type_full_name (&klass->byval_arg), ref);
4474
4475 g_hash_table_insert (acfg->ginst_hash, klass, klass);
4476
4477 /*
4478 * Use gsharedvt for generic collections with vtype arguments to avoid code blowup.
4479 * Enable this only for some classes since gsharedvt might not support all methods.
4480 */
4481 if ((acfg->opts & MONO_OPT_GSHAREDVT) && klass->image == mono_defaults.corlib && mono_class_is_ginst (klass) && mono_class_get_generic_class (klass)->context.class_inst && is_vt_inst (mono_class_get_generic_class (klass)->context.class_inst) &&
4482 (!strcmp (klass->name, "Dictionary`2") || !strcmp (klass->name, "List`1") || !strcmp (klass->name, "ReadOnlyCollection`1")))
4483 use_gsharedvt = TRUE;
4484
4485 iter = NULL;
4486 while ((method = mono_class_get_methods (klass, &iter))) {
4487 if ((acfg->opts & MONO_OPT_GSHAREDVT) && method->is_inflated && mono_method_get_context (method)->method_inst) {
4488 /*
4489 * This is partial sharing, and we can't handle it yet
4490 */
4491 continue;
4492 }
4493
4494 if (mono_method_is_generic_sharable_full (method, FALSE, FALSE, use_gsharedvt)) {
4495 /* Already added */
4496 add_types_from_method_header (acfg, method);
4497 continue;
4498 }
4499
4500 if (method->is_generic)
4501 /* FIXME: */
4502 continue;
4503
4504 /*
4505 * FIXME: Instances which are referenced by these methods are not added,
4506 * for example Array.Resize<int> for List<int>.Add ().
4507 */
4508 add_extra_method_with_depth (acfg, method, depth + 1);
4509 }
4510
4511 iter = NULL;
4512 while ((field = mono_class_get_fields (klass, &iter))) {
4513 if (field->type->type == MONO_TYPE_GENERICINST)
4514 add_generic_class_with_depth (acfg, mono_class_from_mono_type (field->type), depth + 1, "field");
4515 }
4516
4517 if (klass->delegate) {
4518 method = mono_get_delegate_invoke (klass);
4519
4520 method = mono_marshal_get_delegate_invoke (method, NULL);
4521
4522 if (acfg->aot_opts.log_generics)
4523 aot_printf (acfg, "%*sAdding method %s.\n", depth, "", mono_method_get_full_name (method));
4524
4525 add_method (acfg, method);
4526 }
4527
4528 /* Add superclasses */
4529 if (klass->parent)
4530 add_generic_class_with_depth (acfg, klass->parent, depth, "parent");
4531
4532 /*
4533 * For ICollection<T>, add instances of the helper methods
4534 * in Array, since a T[] could be cast to ICollection<T>.
4535 */
4536 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
4537 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1") || !strcmp (klass->name, "IReadOnlyList`1"))) {
4538 MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]);
4539 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
4540 gpointer iter;
4541 char *name_prefix;
4542
4543 if (!strcmp (klass->name, "IEnumerator`1"))
4544 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
4545 else
4546 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
4547
4548 /* Add the T[]/InternalEnumerator class */
4549 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
4550 MonoError error;
4551 MonoClass *nclass;
4552
4553 iter = NULL;
4554 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
4555 if (!strcmp (nclass->name, "InternalEnumerator`1"))
4556 break;
4557 }
4558 g_assert (nclass);
4559 nclass = mono_class_inflate_generic_class_checked (nclass, mono_generic_class_get_context (mono_class_get_generic_class (klass)), &error);
4560 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4561 add_generic_class (acfg, nclass, FALSE, "ICollection<T>");
4562 }
4563
4564 iter = NULL;
4565 while ((method = mono_class_get_methods (array_class, &iter))) {
4566 if (strstr (method->name, name_prefix)) {
4567 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4568
4569 add_extra_method_with_depth (acfg, m, depth);
4570 }
4571 }
4572
4573 g_free (name_prefix);
4574 }
4575
4576 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
4577 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
4578 MonoError error;
4579 MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]);
4580 MonoClass *icomparable, *gcomparer, *icomparable_inst;
4581 MonoGenericContext ctx;
4582 MonoType *args [16];
4583
4584 memset (&ctx, 0, sizeof (ctx));
4585
4586 icomparable = mono_class_load_from_name (mono_defaults.corlib, "System", "IComparable`1");
4587
4588 args [0] = &tclass->byval_arg;
4589 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4590
4591 icomparable_inst = mono_class_inflate_generic_class_checked (icomparable, &ctx, &error);
4592 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4593
4594 if (mono_class_is_assignable_from (icomparable_inst, tclass)) {
4595 MonoClass *gcomparer_inst;
4596 gcomparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
4597 gcomparer_inst = mono_class_inflate_generic_class_checked (gcomparer, &ctx, &error);
4598 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4599
4600 add_generic_class (acfg, gcomparer_inst, FALSE, "Comparer<T>");
4601 }
4602 }
4603
4604 /* Add an instance of GenericEqualityComparer<T> which is created dynamically by EqualityComparer<T> */
4605 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) {
4606 MonoError error;
4607 MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]);
4608 MonoClass *iface, *gcomparer, *iface_inst;
4609 MonoGenericContext ctx;
4610 MonoType *args [16];
4611
4612 memset (&ctx, 0, sizeof (ctx));
4613
4614 iface = mono_class_load_from_name (mono_defaults.corlib, "System", "IEquatable`1");
4615 g_assert (iface);
4616 args [0] = &tclass->byval_arg;
4617 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4618
4619 iface_inst = mono_class_inflate_generic_class_checked (iface, &ctx, &error);
4620 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4621
4622 if (mono_class_is_assignable_from (iface_inst, tclass)) {
4623 MonoClass *gcomparer_inst;
4624 MonoError error;
4625
4626 gcomparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericEqualityComparer`1");
4627 gcomparer_inst = mono_class_inflate_generic_class_checked (gcomparer, &ctx, &error);
4628 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4629 add_generic_class (acfg, gcomparer_inst, FALSE, "EqualityComparer<T>");
4630 }
4631 }
4632
4633 /* Add an instance of EnumComparer<T> which is created dynamically by EqualityComparer<T> for enums */
4634 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) {
4635 MonoClass *enum_comparer;
4636 MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]);
4637 MonoGenericContext ctx;
4638 MonoType *args [16];
4639
4640 if (mono_class_is_enum (tclass)) {
4641 MonoClass *enum_comparer_inst;
4642 MonoError error;
4643
4644 memset (&ctx, 0, sizeof (ctx));
4645 args [0] = &tclass->byval_arg;
4646 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4647
4648 enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "EnumEqualityComparer`1");
4649 enum_comparer_inst = mono_class_inflate_generic_class_checked (enum_comparer, &ctx, &error);
4650 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4651 add_generic_class (acfg, enum_comparer_inst, FALSE, "EqualityComparer<T>");
4652 }
4653 }
4654
4655 /* Add an instance of ObjectComparer<T> which is created dynamically by Comparer<T> for enums */
4656 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
4657 MonoClass *comparer;
4658 MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]);
4659 MonoGenericContext ctx;
4660 MonoType *args [16];
4661
4662 if (mono_class_is_enum (tclass)) {
4663 MonoClass *comparer_inst;
4664 MonoError error;
4665
4666 memset (&ctx, 0, sizeof (ctx));
4667 args [0] = &tclass->byval_arg;
4668 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4669
4670 comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "ObjectComparer`1");
4671 comparer_inst = mono_class_inflate_generic_class_checked (comparer, &ctx, &error);
4672 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4673 add_generic_class (acfg, comparer_inst, FALSE, "Comparer<T>");
4674 }
4675 }
4676 }
4677
4678 static void
4679 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts, gboolean force)
4680 {
4681 int i;
4682 MonoGenericContext ctx;
4683 MonoType *args [16];
4684
4685 if (acfg->aot_opts.no_instances)
4686 return;
4687
4688 memset (&ctx, 0, sizeof (ctx));
4689
4690 for (i = 0; i < ninsts; ++i) {
4691 MonoError error;
4692 MonoClass *generic_inst;
4693 args [0] = insts [i];
4694 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4695 generic_inst = mono_class_inflate_generic_class_checked (klass, &ctx, &error);
4696 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
4697 add_generic_class (acfg, generic_inst, force, "");
4698 }
4699 }
4700
4701 static void
4702 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method)
4703 {
4704 MonoError error;
4705 MonoMethodHeader *header;
4706 MonoMethodSignature *sig;
4707 int j, depth;
4708
4709 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
4710
4711 sig = mono_method_signature (method);
4712
4713 if (sig) {
4714 for (j = 0; j < sig->param_count; ++j)
4715 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
4716 add_generic_class_with_depth (acfg, mono_class_from_mono_type (sig->params [j]), depth + 1, "arg");
4717 }
4718
4719 header = mono_method_get_header_checked (method, &error);
4720
4721 if (header) {
4722 for (j = 0; j < header->num_locals; ++j)
4723 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
4724 add_generic_class_with_depth (acfg, mono_class_from_mono_type (header->locals [j]), depth + 1, "local");
4725 mono_metadata_free_mh (header);
4726 } else {
4727 mono_error_cleanup (&error); /* FIXME report the error */
4728 }
4729
4730 }
4731
4732 /*
4733 * add_generic_instances:
4734 *
4735 * Add instances referenced by the METHODSPEC/TYPESPEC table.
4736 */
4737 static void
4738 add_generic_instances (MonoAotCompile *acfg)
4739 {
4740 int i;
4741 guint32 token;
4742 MonoMethod *method;
4743 MonoGenericContext *context;
4744
4745 if (acfg->aot_opts.no_instances)
4746 return;
4747
4748 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
4749 MonoError error;
4750 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
4751 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
4752
4753 if (!method) {
4754 aot_printerrf (acfg, "Failed to load methodspec 0x%x due to %s.\n", token, mono_error_get_message (&error));
4755 aot_printerrf (acfg, "Run with MONO_LOG_LEVEL=debug for more information.\n");
4756 mono_error_cleanup (&error);
4757 continue;
4758 }
4759
4760 if (method->klass->image != acfg->image)
4761 continue;
4762
4763 context = mono_method_get_context (method);
4764
4765 if (context && ((context->class_inst && context->class_inst->is_open)))
4766 continue;
4767
4768 /*
4769 * For open methods, create an instantiation which can be passed to the JIT.
4770 * FIXME: Handle class_inst as well.
4771 */
4772 if (context && context->method_inst && context->method_inst->is_open) {
4773 MonoError error;
4774 MonoGenericContext shared_context;
4775 MonoGenericInst *inst;
4776 MonoType **type_argv;
4777 int i;
4778 MonoMethod *declaring_method;
4779 gboolean supported = TRUE;
4780
4781 /* Check that the context doesn't contain open constructed types */
4782 if (context->class_inst) {
4783 inst = context->class_inst;
4784 for (i = 0; i < inst->type_argc; ++i) {
4785 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
4786 continue;
4787 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
4788 supported = FALSE;
4789 }
4790 }
4791 if (context->method_inst) {
4792 inst = context->method_inst;
4793 for (i = 0; i < inst->type_argc; ++i) {
4794 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
4795 continue;
4796 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
4797 supported = FALSE;
4798 }
4799 }
4800
4801 if (!supported)
4802 continue;
4803
4804 memset (&shared_context, 0, sizeof (MonoGenericContext));
4805
4806 inst = context->class_inst;
4807 if (inst) {
4808 type_argv = g_new0 (MonoType*, inst->type_argc);
4809 for (i = 0; i < inst->type_argc; ++i) {
4810 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
4811 type_argv [i] = &mono_defaults.object_class->byval_arg;
4812 else
4813 type_argv [i] = inst->type_argv [i];
4814 }
4815
4816 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4817 g_free (type_argv);
4818 }
4819
4820 inst = context->method_inst;
4821 if (inst) {
4822 type_argv = g_new0 (MonoType*, inst->type_argc);
4823 for (i = 0; i < inst->type_argc; ++i) {
4824 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
4825 type_argv [i] = &mono_defaults.object_class->byval_arg;
4826 else
4827 type_argv [i] = inst->type_argv [i];
4828 }
4829
4830 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4831 g_free (type_argv);
4832 }
4833
4834 if (method->is_generic || mono_class_is_gtd (method->klass))
4835 declaring_method = method;
4836 else
4837 declaring_method = mono_method_get_declaring_generic_method (method);
4838
4839 method = mono_class_inflate_generic_method_checked (declaring_method, &shared_context, &error);
4840 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4841 }
4842
4843 /*
4844 * If the method is fully sharable, it was already added in place of its
4845 * generic definition.
4846 */
4847 if (mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE))
4848 continue;
4849
4850 /*
4851 * FIXME: Partially shared methods are not shared here, so we end up with
4852 * many identical methods.
4853 */
4854 add_extra_method (acfg, method);
4855 }
4856
4857 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
4858 MonoError error;
4859 MonoClass *klass;
4860
4861 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
4862
4863 klass = mono_class_get_checked (acfg->image, token, &error);
4864 if (!klass || klass->rank) {
4865 mono_error_cleanup (&error);
4866 continue;
4867 }
4868
4869 add_generic_class (acfg, klass, FALSE, "typespec");
4870 }
4871
4872 /* Add types of args/locals */
4873 for (i = 0; i < acfg->methods->len; ++i) {
4874 method = (MonoMethod *)g_ptr_array_index (acfg->methods, i);
4875 add_types_from_method_header (acfg, method);
4876 }
4877
4878 if (acfg->image == mono_defaults.corlib) {
4879 MonoClass *klass;
4880 MonoType *insts [256];
4881 int ninsts = 0;
4882
4883 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
4884 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
4885 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
4886 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
4887 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
4888 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
4889 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
4890 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
4891 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
4892 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
4893 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
4894 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
4895
4896 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
4897 klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
4898 if (klass)
4899 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4900 klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
4901 if (klass)
4902 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4903
4904 /* Add instances of EnumEqualityComparer which are created by EqualityComparer<T> for enums */
4905 {
4906 MonoClass *enum_comparer;
4907 MonoType *insts [16];
4908 int ninsts;
4909
4910 ninsts = 0;
4911 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
4912 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
4913 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
4914 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
4915 enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "EnumEqualityComparer`1");
4916 add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE);
4917
4918 ninsts = 0;
4919 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
4920 enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "ShortEnumEqualityComparer`1");
4921 add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE);
4922
4923 ninsts = 0;
4924 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
4925 enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "SByteEnumEqualityComparer`1");
4926 add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE);
4927
4928 enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "LongEnumEqualityComparer`1");
4929 ninsts = 0;
4930 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
4931 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
4932 add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE);
4933 }
4934
4935 /* Add instances of the array generic interfaces for primitive types */
4936 /* This will add instances of the InternalArray_ helper methods in Array too */
4937 klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
4938 if (klass)
4939 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4940
4941 klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "IList`1");
4942 if (klass)
4943 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4944
4945 klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
4946 if (klass)
4947 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4948
4949 /*
4950 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
4951 * used for all instances of GetGenericValueImpl by the AOT runtime.
4952 */
4953 {
4954 MonoGenericContext ctx;
4955 MonoType *args [16];
4956 MonoMethod *get_method;
4957 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
4958
4959 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
4960
4961 if (get_method) {
4962 MonoError error;
4963 memset (&ctx, 0, sizeof (ctx));
4964 args [0] = &mono_defaults.object_class->byval_arg;
4965 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4966 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (get_method, &ctx, &error), TRUE, TRUE));
4967 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4968 }
4969 }
4970
4971 /* Same for CompareExchange<T>/Exchange<T> */
4972 {
4973 MonoGenericContext ctx;
4974 MonoType *args [16];
4975 MonoMethod *m;
4976 MonoClass *interlocked_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Threading", "Interlocked");
4977 gpointer iter = NULL;
4978
4979 while ((m = mono_class_get_methods (interlocked_klass, &iter))) {
4980 if ((!strcmp (m->name, "CompareExchange") || !strcmp (m->name, "Exchange")) && m->is_generic) {
4981 MonoError error;
4982 memset (&ctx, 0, sizeof (ctx));
4983 args [0] = &mono_defaults.object_class->byval_arg;
4984 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4985 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE));
4986 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4987 }
4988 }
4989 }
4990
4991 /* Same for Volatile.Read/Write<T> */
4992 {
4993 MonoGenericContext ctx;
4994 MonoType *args [16];
4995 MonoMethod *m;
4996 MonoClass *volatile_klass = mono_class_try_load_from_name (mono_defaults.corlib, "System.Threading", "Volatile");
4997 gpointer iter = NULL;
4998
4999 if (volatile_klass) {
5000 while ((m = mono_class_get_methods (volatile_klass, &iter))) {
5001 if ((!strcmp (m->name, "Read") || !strcmp (m->name, "Write")) && m->is_generic) {
5002 MonoError error;
5003 memset (&ctx, 0, sizeof (ctx));
5004 args [0] = &mono_defaults.object_class->byval_arg;
5005 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
5006 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE));
5007 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
5008 }
5009 }
5010 }
5011 }
5012
5013 /* object[] accessor wrappers. */
5014 for (i = 1; i < 4; ++i) {
5015 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, i);
5016 MonoMethod *m;
5017
5018 m = mono_class_get_method_from_name (obj_array_class, "Get", i);
5019 g_assert (m);
5020
5021 m = mono_marshal_get_array_accessor_wrapper (m);
5022 add_extra_method (acfg, m);
5023
5024 m = mono_class_get_method_from_name (obj_array_class, "Address", i);
5025 g_assert (m);
5026
5027 m = mono_marshal_get_array_accessor_wrapper (m);
5028 add_extra_method (acfg, m);
5029
5030 m = mono_class_get_method_from_name (obj_array_class, "Set", i + 1);
5031 g_assert (m);
5032
5033 m = mono_marshal_get_array_accessor_wrapper (m);
5034 add_extra_method (acfg, m);
5035 }
5036 }
5037 }
5038
5039 /*
5040 * is_direct_callable:
5041 *
5042 * Return whenever the method identified by JI is directly callable without
5043 * going through the PLT.
5044 */
5045 static gboolean
5046 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
5047 {
5048 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
5049 MonoCompile *callee_cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
5050 if (callee_cfg) {
5051 gboolean direct_callable = TRUE;
5052
5053 if (direct_callable && !(!callee_cfg->has_got_slots && mono_class_is_before_field_init (callee_cfg->method->klass)))
5054 direct_callable = FALSE;
5055 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
5056 // FIXME: Maybe call the wrapper directly ?
5057 direct_callable = FALSE;
5058
5059 if (acfg->aot_opts.soft_debug || acfg->aot_opts.no_direct_calls) {
5060 /* Disable this so all calls go through load_method (), see the
5061 * mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE; line in
5062 * mono_debugger_agent_init ().
5063 */
5064 direct_callable = FALSE;
5065 }
5066
5067 if (callee_cfg->method->wrapper_type == MONO_WRAPPER_ALLOC)
5068 /* sgen does some initialization when the allocator method is created */
5069 direct_callable = FALSE;
5070 if (callee_cfg->method->wrapper_type == MONO_WRAPPER_WRITE_BARRIER)
5071 /* we don't know at compile time whether sgen is concurrent or not */
5072 direct_callable = FALSE;
5073
5074 if (direct_callable)
5075 return TRUE;
5076 }
5077 } else if ((patch_info->type == MONO_PATCH_INFO_ICALL_ADDR_CALL && patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
5078 if (acfg->aot_opts.direct_pinvoke)
5079 return TRUE;
5080 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR_CALL) {
5081 if (acfg->aot_opts.direct_icalls)
5082 return TRUE;
5083 return FALSE;
5084 }
5085
5086 return FALSE;
5087 }
5088
5089 #ifdef MONO_ARCH_AOT_SUPPORTED
5090 static const char *
5091 get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method)
5092 {
5093 MonoImage *image = method->klass->image;
5094 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
5095 MonoTableInfo *tables = image->tables;
5096 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
5097 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
5098 guint32 im_cols [MONO_IMPLMAP_SIZE];
5099 char *import;
5100
5101 import = (char *)g_hash_table_lookup (acfg->method_to_pinvoke_import, method);
5102 if (import != NULL)
5103 return import;
5104
5105 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
5106 return NULL;
5107
5108 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
5109
5110 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
5111 return NULL;
5112
5113 import = g_strdup_printf ("%s", mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]));
5114
5115 g_hash_table_insert (acfg->method_to_pinvoke_import, method, import);
5116
5117 return import;
5118 }
5119 #else
5120 static const char *
5121 get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method)
5122 {
5123 return NULL;
5124 }
5125 #endif
5126
5127 static gint
5128 compare_lne (MonoDebugLineNumberEntry *a, MonoDebugLineNumberEntry *b)
5129 {
5130 if (a->native_offset == b->native_offset)
5131 return a->il_offset - b->il_offset;
5132 else
5133 return a->native_offset - b->native_offset;
5134 }
5135
5136 /*
5137 * compute_line_numbers:
5138 *
5139 * Returns a sparse array of size CODE_SIZE containing MonoDebugSourceLocation* entries for the native offsets which have a corresponding line number
5140 * entry.
5141 */
5142 static MonoDebugSourceLocation**
5143 compute_line_numbers (MonoMethod *method, int code_size, MonoDebugMethodJitInfo *debug_info)
5144 {
5145 MonoDebugMethodInfo *minfo;
5146 MonoDebugLineNumberEntry *ln_array;
5147 MonoDebugSourceLocation *loc;
5148 int i, prev_line, prev_il_offset;
5149 int *native_to_il_offset = NULL;
5150 MonoDebugSourceLocation **res;
5151 gboolean first;
5152
5153 minfo = mono_debug_lookup_method (method);
5154 if (!minfo)
5155 return NULL;
5156 // FIXME: This seems to happen when two methods have the same cfg->method_to_register
5157 if (debug_info->code_size != code_size)
5158 return NULL;
5159
5160 g_assert (code_size);
5161
5162 /* Compute the native->IL offset mapping */
5163
5164 ln_array = g_new0 (MonoDebugLineNumberEntry, debug_info->num_line_numbers);
5165 memcpy (ln_array, debug_info->line_numbers, debug_info->num_line_numbers * sizeof (MonoDebugLineNumberEntry));
5166
5167 qsort (ln_array, debug_info->num_line_numbers, sizeof (MonoDebugLineNumberEntry), (int (*)(const void *, const void *))compare_lne);
5168
5169 native_to_il_offset = g_new0 (int, code_size + 1);
5170
5171 for (i = 0; i < debug_info->num_line_numbers; ++i) {
5172 int j;
5173 MonoDebugLineNumberEntry *lne = &ln_array [i];
5174
5175 if (i == 0) {
5176 for (j = 0; j < lne->native_offset; ++j)
5177 native_to_il_offset [j] = -1;
5178 }
5179
5180 if (i < debug_info->num_line_numbers - 1) {
5181 MonoDebugLineNumberEntry *lne_next = &ln_array [i + 1];
5182
5183 for (j = lne->native_offset; j < lne_next->native_offset; ++j)
5184 native_to_il_offset [j] = lne->il_offset;
5185 } else {
5186 for (j = lne->native_offset; j < code_size; ++j)
5187 native_to_il_offset [j] = lne->il_offset;
5188 }
5189 }
5190 g_free (ln_array);
5191
5192 /* Compute the native->line number mapping */
5193 res = g_new0 (MonoDebugSourceLocation*, code_size);
5194 prev_il_offset = -1;
5195 prev_line = -1;
5196 first = TRUE;
5197 for (i = 0; i < code_size; ++i) {
5198 int il_offset = native_to_il_offset [i];
5199
5200 if (il_offset == -1 || il_offset == prev_il_offset)
5201 continue;
5202 prev_il_offset = il_offset;
5203 loc = mono_debug_symfile_lookup_location (minfo, il_offset);
5204 if (!(loc && loc->source_file))
5205 continue;
5206 if (loc->row == prev_line) {
5207 mono_debug_symfile_free_location (loc);
5208 continue;
5209 }
5210 prev_line = loc->row;
5211 //printf ("D: %s:%d il=%x native=%x\n", loc->source_file, loc->row, il_offset, i);
5212 if (first)
5213 /* This will cover the prolog too */
5214 res [0] = loc;
5215 else
5216 res [i] = loc;
5217 first = FALSE;
5218 }
5219 return res;
5220 }
5221
5222 static int
5223 get_file_index (MonoAotCompile *acfg, const char *source_file)
5224 {
5225 int findex;
5226
5227 // FIXME: Free these
5228 if (!acfg->dwarf_ln_filenames)
5229 acfg->dwarf_ln_filenames = g_hash_table_new (g_str_hash, g_str_equal);
5230 findex = GPOINTER_TO_INT (g_hash_table_lookup (acfg->dwarf_ln_filenames, source_file));
5231 if (!findex) {
5232 findex = g_hash_table_size (acfg->dwarf_ln_filenames) + 1;
5233 g_hash_table_insert (acfg->dwarf_ln_filenames, g_strdup (source_file), GINT_TO_POINTER (findex));
5234 emit_unset_mode (acfg);
5235 fprintf (acfg->fp, ".file %d \"%s\"\n", findex, mono_dwarf_escape_path (source_file));
5236 }
5237 return findex;
5238 }
5239
5240 #ifdef TARGET_ARM64
5241 #define INST_LEN 4
5242 #else
5243 #define INST_LEN 1
5244 #endif
5245
5246 /*
5247 * emit_and_reloc_code:
5248 *
5249 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
5250 * is true, calls are made through the GOT too. This is used for emitting trampolines
5251 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
5252 * since trampolines are needed to make PTL work.
5253 */
5254 static void
5255 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only, MonoDebugMethodJitInfo *debug_info)
5256 {
5257 int i, pindex, start_index;
5258 GPtrArray *patches;
5259 MonoJumpInfo *patch_info;
5260 MonoDebugSourceLocation **locs = NULL;
5261 gboolean skip, prologue_end = FALSE;
5262 #ifdef MONO_ARCH_AOT_SUPPORTED
5263 gboolean direct_call, external_call;
5264 guint32 got_slot;
5265 const char *direct_call_target = 0;
5266 const char *direct_pinvoke;
5267 #endif
5268
5269 if (acfg->gas_line_numbers && method && debug_info) {
5270 locs = compute_line_numbers (method, code_len, debug_info);
5271 if (!locs) {
5272 int findex = get_file_index (acfg, "<unknown>");
5273 emit_unset_mode (acfg);
5274 fprintf (acfg->fp, ".loc %d %d 0\n", findex, 1);
5275 }
5276 }
5277
5278 /* Collect and sort relocations */
5279 patches = g_ptr_array_new ();
5280 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
5281 g_ptr_array_add (patches, patch_info);
5282 g_ptr_array_sort (patches, compare_patches);
5283
5284 start_index = 0;
5285 for (i = 0; i < code_len; i += INST_LEN) {
5286 patch_info = NULL;
5287 for (pindex = start_index; pindex < patches->len; ++pindex) {
5288 patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex);
5289 if (patch_info->ip.i >= i)
5290 break;
5291 }
5292
5293 if (locs && locs [i]) {
5294 MonoDebugSourceLocation *loc = locs [i];
5295 int findex;
5296 const char *options;
5297
5298 findex = get_file_index (acfg, loc->source_file);
5299 emit_unset_mode (acfg);
5300 if (!prologue_end)
5301 options = " prologue_end";
5302 else
5303 options = "";
5304 prologue_end = TRUE;
5305 fprintf (acfg->fp, ".loc %d %d 0%s\n", findex, loc->row, options);
5306 mono_debug_symfile_free_location (loc);
5307 }
5308
5309 skip = FALSE;
5310 #ifdef MONO_ARCH_AOT_SUPPORTED
5311 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
5312 start_index = pindex;
5313
5314 switch (patch_info->type) {
5315 case MONO_PATCH_INFO_NONE:
5316 break;
5317 case MONO_PATCH_INFO_GOT_OFFSET: {
5318 int code_size;
5319
5320 arch_emit_got_offset (acfg, code + i, &code_size);
5321 i += code_size - INST_LEN;
5322 skip = TRUE;
5323 patch_info->type = MONO_PATCH_INFO_NONE;
5324 break;
5325 }
5326 case MONO_PATCH_INFO_OBJC_SELECTOR_REF: {
5327 int code_size, index;
5328 char *selector = (char *)patch_info->data.target;
5329
5330 if (!acfg->objc_selector_to_index)
5331 acfg->objc_selector_to_index = g_hash_table_new (g_str_hash, g_str_equal);
5332 if (!acfg->objc_selectors)
5333 acfg->objc_selectors = g_ptr_array_new ();
5334 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->objc_selector_to_index, selector));
5335 if (index)
5336 index --;
5337 else {
5338 index = acfg->objc_selector_index;
5339 g_ptr_array_add (acfg->objc_selectors, (void*)patch_info->data.target);
5340 g_hash_table_insert (acfg->objc_selector_to_index, selector, GUINT_TO_POINTER (index + 1));
5341 acfg->objc_selector_index ++;
5342 }
5343
5344 arch_emit_objc_selector_ref (acfg, code + i, index, &code_size);
5345 i += code_size - INST_LEN;
5346 skip = TRUE;
5347 patch_info->type = MONO_PATCH_INFO_NONE;
5348 break;
5349 }
5350 default: {
5351 /*
5352 * If this patch is a call, try emitting a direct call instead of
5353 * through a PLT entry. This is possible if the called method is in
5354 * the same assembly and requires no initialization.
5355 */
5356 direct_call = FALSE;
5357 external_call = FALSE;
5358 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
5359 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
5360 MonoCompile *callee_cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
5361 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
5362 direct_call = TRUE;
5363 direct_call_target = callee_cfg->asm_symbol;
5364 patch_info->type = MONO_PATCH_INFO_NONE;
5365 acfg->stats.direct_calls ++;
5366 }
5367
5368 acfg->stats.all_calls ++;
5369 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR_CALL) {
5370 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
5371 if (!(patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
5372 direct_pinvoke = mono_lookup_icall_symbol (patch_info->data.method);
5373 else
5374 direct_pinvoke = get_pinvoke_import (acfg, patch_info->data.method);
5375 if (direct_pinvoke) {
5376 direct_call = TRUE;
5377 g_assert (strlen (direct_pinvoke) < 1000);
5378 direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, direct_pinvoke);
5379 }
5380 }
5381 } else if (patch_info->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5382 const char *sym = mono_lookup_jit_icall_symbol (patch_info->data.name);
5383 if (!got_only && sym && acfg->aot_opts.direct_icalls) {
5384 /* Call to a C function implementing a jit icall */
5385 direct_call = TRUE;
5386 external_call = TRUE;
5387 g_assert (strlen (sym) < 1000);
5388 direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, sym);
5389 }
5390 } else if (patch_info->type == MONO_PATCH_INFO_INTERNAL_METHOD) {
5391 MonoJitICallInfo *info = mono_find_jit_icall_by_name (patch_info->data.name);
5392 const char *sym = mono_lookup_jit_icall_symbol (patch_info->data.name);
5393 if (!got_only && sym && acfg->aot_opts.direct_icalls && info->func == info->wrapper) {
5394 /* Call to a jit icall without a wrapper */
5395 direct_call = TRUE;
5396 external_call = TRUE;
5397 g_assert (strlen (sym) < 1000);
5398 direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, sym);
5399 }
5400 }
5401
5402 if (direct_call) {
5403 patch_info->type = MONO_PATCH_INFO_NONE;
5404 acfg->stats.direct_calls ++;
5405 }
5406
5407 if (!got_only && !direct_call) {
5408 MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info);
5409 if (plt_entry) {
5410 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
5411 direct_call = TRUE;
5412 direct_call_target = plt_entry->symbol;
5413
5414 /* Nullify the patch */
5415 patch_info->type = MONO_PATCH_INFO_NONE;
5416 plt_entry->jit_used = TRUE;
5417 }
5418 }
5419
5420 if (direct_call) {
5421 int call_size;
5422
5423 arch_emit_direct_call (acfg, direct_call_target, external_call, FALSE, patch_info, &call_size);
5424 i += call_size - INST_LEN;
5425 } else {
5426 int code_size;
5427
5428 got_slot = get_got_offset (acfg, FALSE, patch_info);
5429
5430 arch_emit_got_access (acfg, acfg->got_symbol, code + i, got_slot, &code_size);
5431 i += code_size - INST_LEN;
5432 }
5433 skip = TRUE;
5434 }
5435 }
5436 }
5437 #endif /* MONO_ARCH_AOT_SUPPORTED */
5438
5439 if (!skip) {
5440 /* Find next patch */
5441 patch_info = NULL;
5442 for (pindex = start_index; pindex < patches->len; ++pindex) {
5443 patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex);
5444 if (patch_info->ip.i >= i)
5445 break;
5446 }
5447
5448 /* Try to emit multiple bytes at once */
5449 if (pindex < patches->len && patch_info->ip.i > i) {
5450 int limit;
5451
5452 for (limit = i + INST_LEN; limit < patch_info->ip.i; limit += INST_LEN) {
5453 if (locs && locs [limit])
5454 break;
5455 }
5456
5457 emit_code_bytes (acfg, code + i, limit - i);
5458 i = limit - INST_LEN;
5459 } else {
5460 emit_code_bytes (acfg, code + i, INST_LEN);
5461 }
5462 }
5463 }
5464
5465 g_ptr_array_free (patches, TRUE);
5466 g_free (locs);
5467 }
5468
5469 /*
5470 * sanitize_symbol:
5471 *
5472 * Return a modified version of S which only includes characters permissible in symbols.
5473 */
5474 static char*
5475 sanitize_symbol (MonoAotCompile *acfg, char *s)
5476 {
5477 gboolean process = FALSE;
5478 int i, len;
5479 GString *gs;
5480 char *res;
5481
5482 if (!s)
5483 return s;
5484
5485 len = strlen (s);
5486 for (i = 0; i < len; ++i)
5487 if (!(s [i] <= 0x7f && (isalnum (s [i]) || s [i] == '_')))
5488 process = TRUE;
5489 if (!process)
5490 return s;
5491
5492 gs = g_string_sized_new (len);
5493 for (i = 0; i < len; ++i) {
5494 guint8 c = s [i];
5495 if (c <= 0x7f && (isalnum (c) || c == '_')) {
5496 g_string_append_c (gs, c);
5497 } else if (c > 0x7f) {
5498 /* multi-byte utf8 */
5499 g_string_append_printf (gs, "_0x%x", c);
5500 i ++;
5501 c = s [i];
5502 while (c >> 6 == 0x2) {
5503 g_string_append_printf (gs, "%x", c);
5504 i ++;
5505 c = s [i];
5506 }
5507 g_string_append_printf (gs, "_");
5508 i --;
5509 } else {
5510 g_string_append_c (gs, '_');
5511 }
5512 }
5513
5514 res = mono_mempool_strdup (acfg->mempool, gs->str);
5515 g_string_free (gs, TRUE);
5516 return res;
5517 }
5518
5519 static char*
5520 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
5521 {
5522 char *name1, *name2, *cached;
5523 int i, j, len, count;
5524 MonoMethod *cached_method;
5525
5526 name1 = mono_method_full_name (method, TRUE);
5527
5528 #ifdef TARGET_MACH
5529 // This is so that we don't accidentally create a local symbol (which starts with 'L')
5530 if ((!prefix || !*prefix) && name1 [0] == 'L')
5531 prefix = "_";
5532 #endif
5533
5534 #if defined(TARGET_WIN32) && defined(TARGET_X86)
5535 char adjustedPrefix [MAX_SYMBOL_SIZE];
5536 prefix = mangle_symbol (prefix, adjustedPrefix, G_N_ELEMENTS (adjustedPrefix));
5537 #endif
5538
5539 len = strlen (name1);
5540 name2 = (char *)malloc (strlen (prefix) + len + 16);
5541 memcpy (name2, prefix, strlen (prefix));
5542 j = strlen (prefix);
5543 for (i = 0; i < len; ++i) {
5544 if (i == 0 && name1 [0] >= '0' && name1 [0] <= '9') {
5545 name2 [j ++] = '_';
5546 } else if (isalnum (name1 [i])) {
5547 name2 [j ++] = name1 [i];
5548 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
5549 i += 2;
5550 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
5551 name2 [j ++] = '_';
5552 i++;
5553 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
5554 } else
5555 name2 [j ++] = '_';
5556 }
5557 name2 [j] = '\0';
5558
5559 g_free (name1);
5560
5561 count = 0;
5562 while (TRUE) {
5563 cached_method = (MonoMethod *)g_hash_table_lookup (cache, name2);
5564 if (!(cached_method && cached_method != method))
5565 break;
5566 sprintf (name2 + j, "_%d", count);
5567 count ++;
5568 }
5569
5570 cached = g_strdup (name2);
5571 g_hash_table_insert (cache, cached, method);
5572
5573 return name2;
5574 }
5575
5576 static void
5577 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
5578 {
5579 MonoMethod *method;
5580 int method_index;
5581 guint8 *code;
5582 char *debug_sym = NULL;
5583 char *symbol = NULL;
5584 int func_alignment = AOT_FUNC_ALIGNMENT;
5585 char *export_name;
5586
5587 method = cfg->orig_method;
5588 code = cfg->native_code;
5589
5590 method_index = get_method_index (acfg, method);
5591 symbol = g_strdup_printf ("%sme_%x", acfg->temp_prefix, method_index);
5592
5593 /* Make the labels local */
5594 emit_section_change (acfg, ".text", 0);
5595 emit_alignment_code (acfg, func_alignment);
5596
5597 if (acfg->global_symbols && acfg->need_no_dead_strip)
5598 fprintf (acfg->fp, " .no_dead_strip %s\n", cfg->asm_symbol);
5599
5600 emit_label (acfg, cfg->asm_symbol);
5601
5602 if (acfg->aot_opts.write_symbols && !acfg->global_symbols && !acfg->llvm) {
5603 /*
5604 * Write a C style symbol for every method, this has two uses:
5605 * - it works on platforms where the dwarf debugging info is not
5606 * yet supported.
5607 * - it allows the setting of breakpoints of aot-ed methods.
5608 */
5609 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
5610 cfg->asm_debug_symbol = g_strdup (debug_sym);
5611
5612 if (acfg->need_no_dead_strip)
5613 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
5614 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
5615 emit_label (acfg, debug_sym);
5616 }
5617
5618 export_name = (char *)g_hash_table_lookup (acfg->export_names, method);
5619 if (export_name) {
5620 /* Emit a global symbol for the method */
5621 emit_global_inner (acfg, export_name, TRUE);
5622 emit_label (acfg, export_name);
5623 }
5624
5625 if (cfg->verbose_level > 0)
5626 g_print ("Method %s emitted as %s\n", mono_method_get_full_name (method), cfg->asm_symbol);
5627
5628 acfg->stats.code_size += cfg->code_len;
5629
5630 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
5631
5632 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE, mono_debug_find_method (cfg->jit_info->d.method, mono_domain_get ()));
5633
5634 emit_line (acfg);
5635
5636 if (acfg->aot_opts.write_symbols) {
5637 if (debug_sym)
5638 emit_symbol_size (acfg, debug_sym, ".");
5639 else
5640 emit_symbol_size (acfg, cfg->asm_symbol, ".");
5641 g_free (debug_sym);
5642 }
5643
5644 emit_label (acfg, symbol);
5645 g_free (symbol);
5646 }
5647
5648 /**
5649 * encode_patch:
5650 *
5651 * Encode PATCH_INFO into its disk representation.
5652 */
5653 static void
5654 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
5655 {
5656 guint8 *p = buf;
5657
5658 switch (patch_info->type) {
5659 case MONO_PATCH_INFO_NONE:
5660 break;
5661 case MONO_PATCH_INFO_IMAGE:
5662 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
5663 break;
5664 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
5665 case MONO_PATCH_INFO_JIT_TLS_ID:
5666 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
5667 case MONO_PATCH_INFO_GC_NURSERY_START:
5668 case MONO_PATCH_INFO_GC_NURSERY_BITS:
5669 break;
5670 case MONO_PATCH_INFO_CASTCLASS_CACHE:
5671 encode_value (patch_info->data.index, p, &p);
5672 break;
5673 case MONO_PATCH_INFO_METHOD_REL:
5674 encode_value ((gint)patch_info->data.offset, p, &p);
5675 break;
5676 case MONO_PATCH_INFO_SWITCH: {
5677 gpointer *table = (gpointer *)patch_info->data.table->table;
5678 int k;
5679
5680 encode_value (patch_info->data.table->table_size, p, &p);
5681 for (k = 0; k < patch_info->data.table->table_size; k++)
5682 encode_value ((int)(gssize)table [k], p, &p);
5683 break;
5684 }
5685 case MONO_PATCH_INFO_METHODCONST:
5686 case MONO_PATCH_INFO_METHOD:
5687 case MONO_PATCH_INFO_METHOD_JUMP:
5688 case MONO_PATCH_INFO_ICALL_ADDR:
5689 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
5690 case MONO_PATCH_INFO_METHOD_RGCTX:
5691 case MONO_PATCH_INFO_METHOD_CODE_SLOT:
5692 encode_method_ref (acfg, patch_info->data.method, p, &p);
5693 break;
5694 case MONO_PATCH_INFO_AOT_JIT_INFO:
5695 encode_value (patch_info->data.index, p, &p);
5696 break;
5697 case MONO_PATCH_INFO_INTERNAL_METHOD:
5698 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
5699 guint32 len = strlen (patch_info->data.name);
5700
5701 encode_value (len, p, &p);
5702
5703 memcpy (p, patch_info->data.name, len);
5704 p += len;
5705 *p++ = '\0';
5706 break;
5707 }
5708 case MONO_PATCH_INFO_LDSTR: {
5709 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
5710 guint32 token = patch_info->data.token->token;
5711 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
5712 encode_value (image_index, p, &p);
5713 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
5714 break;
5715 }
5716 case MONO_PATCH_INFO_RVA:
5717 case MONO_PATCH_INFO_DECLSEC:
5718 case MONO_PATCH_INFO_LDTOKEN:
5719 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
5720 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
5721 encode_value (patch_info->data.token->token, p, &p);
5722 encode_value (patch_info->data.token->has_context, p, &p);
5723 if (patch_info->data.token->has_context)
5724 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
5725 break;
5726 case MONO_PATCH_INFO_EXC_NAME: {
5727 MonoClass *ex_class;
5728
5729 ex_class =
5730 mono_class_load_from_name (mono_defaults.exception_class->image,
5731 "System", (const char *)patch_info->data.target);
5732 encode_klass_ref (acfg, ex_class, p, &p);
5733 break;
5734 }
5735 case MONO_PATCH_INFO_R4:
5736 encode_value (*((guint32 *)patch_info->data.target), p, &p);
5737 break;
5738 case MONO_PATCH_INFO_R8:
5739 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
5740 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
5741 break;
5742 case MONO_PATCH_INFO_VTABLE:
5743 case MONO_PATCH_INFO_CLASS:
5744 case MONO_PATCH_INFO_IID:
5745 case MONO_PATCH_INFO_ADJUSTED_IID:
5746 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
5747 break;
5748 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
5749 encode_klass_ref (acfg, patch_info->data.del_tramp->klass, p, &p);
5750 if (patch_info->data.del_tramp->method) {
5751 encode_value (1, p, &p);
5752 encode_method_ref (acfg, patch_info->data.del_tramp->method, p, &p);
5753 } else {
5754 encode_value (0, p, &p);
5755 }
5756 encode_value (patch_info->data.del_tramp->is_virtual, p, &p);
5757 break;
5758 case MONO_PATCH_INFO_FIELD:
5759 case MONO_PATCH_INFO_SFLDA:
5760 encode_field_info (acfg, patch_info->data.field, p, &p);
5761 break;
5762 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
5763 break;
5764 case MONO_PATCH_INFO_RGCTX_FETCH:
5765 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
5766 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
5767 guint32 offset;
5768 guint8 *buf2, *p2;
5769
5770 /*
5771 * entry->method has a lenghtly encoding and multiple rgctx_fetch entries
5772 * reference the same method, so encode the method only once.
5773 */
5774 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_blob_hash, entry->method));
5775 if (!offset) {
5776 buf2 = (guint8 *)g_malloc (1024);
5777 p2 = buf2;
5778
5779 encode_method_ref (acfg, entry->method, p2, &p2);
5780 g_assert (p2 - buf2 < 1024);
5781
5782 offset = add_to_blob (acfg, buf2, p2 - buf2);
5783 g_free (buf2);
5784
5785 g_hash_table_insert (acfg->method_blob_hash, entry->method, GUINT_TO_POINTER (offset + 1));
5786 } else {
5787 offset --;
5788 }
5789
5790 encode_value (offset, p, &p);
5791 g_assert ((int)entry->info_type < 256);
5792 g_assert (entry->data->type < 256);
5793 encode_value ((entry->in_mrgctx ? 1 : 0) | (entry->info_type << 1) | (entry->data->type << 9), p, &p);
5794 encode_patch (acfg, entry->data, p, &p);
5795 break;
5796 }
5797 case MONO_PATCH_INFO_SEQ_POINT_INFO:
5798 case MONO_PATCH_INFO_AOT_MODULE:
5799 break;
5800 case MONO_PATCH_INFO_SIGNATURE:
5801 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
5802 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.target, p, &p);
5803 break;
5804 case MONO_PATCH_INFO_TLS_OFFSET:
5805 encode_value (GPOINTER_TO_INT (patch_info->data.target), p, &p);
5806 break;
5807 case MONO_PATCH_INFO_GSHAREDVT_CALL:
5808 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.gsharedvt->sig, p, &p);
5809 encode_method_ref (acfg, patch_info->data.gsharedvt->method, p, &p);
5810 break;
5811 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
5812 MonoGSharedVtMethodInfo *info = patch_info->data.gsharedvt_method;
5813 int i;
5814
5815 encode_method_ref (acfg, info->method, p, &p);
5816 encode_value (info->num_entries, p, &p);
5817 for (i = 0; i < info->num_entries; ++i) {
5818 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
5819
5820 encode_value (template_->info_type, p, &p);
5821 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
5822 case MONO_PATCH_INFO_CLASS:
5823 encode_klass_ref (acfg, mono_class_from_mono_type ((MonoType *)template_->data), p, &p);
5824 break;
5825 case MONO_PATCH_INFO_FIELD:
5826 encode_field_info (acfg, (MonoClassField *)template_->data, p, &p);
5827 break;
5828 default:
5829 g_assert_not_reached ();
5830 break;
5831 }
5832 }
5833 break;
5834 }
5835 case MONO_PATCH_INFO_LDSTR_LIT: {
5836 const char *s = (const char *)patch_info->data.target;
5837 int len = strlen (s);
5838
5839 encode_value (len, p, &p);
5840 memcpy (p, s, len + 1);
5841 p += len + 1;
5842 break;
5843 }
5844 case MONO_PATCH_INFO_VIRT_METHOD:
5845 encode_klass_ref (acfg, patch_info->data.virt_method->klass, p, &p);
5846 encode_method_ref (acfg, patch_info->data.virt_method->method, p, &p);
5847 break;
5848 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
5849 case MONO_PATCH_INFO_GET_TLS_TRAMP:
5850 case MONO_PATCH_INFO_JIT_THREAD_ATTACH:
5851 break;
5852 default:
5853 g_warning ("unable to handle jump info %d", patch_info->type);
5854 g_assert_not_reached ();
5855 }
5856
5857 *endbuf = p;
5858 }
5859
5860 static void
5861 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, gboolean llvm, int first_got_offset, guint8 *buf, guint8 **endbuf)
5862 {
5863 guint8 *p = buf;
5864 guint32 pindex, offset;
5865 MonoJumpInfo *patch_info;
5866
5867 encode_value (n_patches, p, &p);
5868
5869 for (pindex = 0; pindex < patches->len; ++pindex) {
5870 patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex);
5871
5872 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
5873 /* Nothing to do */
5874 continue;
5875
5876 offset = get_got_offset (acfg, llvm, patch_info);
5877 encode_value (offset, p, &p);
5878 }
5879
5880 *endbuf = p;
5881 }
5882
5883 static void
5884 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
5885 {
5886 MonoMethod *method;
5887 int pindex, buf_size, n_patches;
5888 GPtrArray *patches;
5889 MonoJumpInfo *patch_info;
5890 guint32 method_index;
5891 guint8 *p, *buf;
5892 guint32 first_got_offset;
5893
5894 method = cfg->orig_method;
5895
5896 method_index = get_method_index (acfg, method);
5897
5898 /* Sort relocations */
5899 patches = g_ptr_array_new ();
5900 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
5901 g_ptr_array_add (patches, patch_info);
5902 g_ptr_array_sort (patches, compare_patches);
5903
5904 first_got_offset = acfg->cfgs [method_index]->got_offset;
5905
5906 /**********************/
5907 /* Encode method info */
5908 /**********************/
5909
5910 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
5911 p = buf = (guint8 *)g_malloc (buf_size);
5912
5913 if (mono_class_get_cctor (method->klass)) {
5914 encode_value (1, p, &p);
5915 encode_klass_ref (acfg, method->klass, p, &p);
5916 } else {
5917 /* Not needed when loading the method */
5918 encode_value (0, p, &p);
5919 }
5920
5921 g_assert (!(cfg->opt & MONO_OPT_SHARED));
5922
5923 n_patches = 0;
5924 for (pindex = 0; pindex < patches->len; ++pindex) {
5925 patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex);
5926
5927 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
5928 (patch_info->type == MONO_PATCH_INFO_NONE)) {
5929 patch_info->type = MONO_PATCH_INFO_NONE;
5930 /* Nothing to do */
5931 continue;
5932 }
5933
5934 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
5935 /* Stored in a GOT slot initialized at module load time */
5936 patch_info->type = MONO_PATCH_INFO_NONE;
5937 continue;
5938 }
5939
5940 if (patch_info->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR ||
5941 patch_info->type == MONO_PATCH_INFO_GC_NURSERY_START ||
5942 patch_info->type == MONO_PATCH_INFO_GC_NURSERY_BITS ||
5943 patch_info->type == MONO_PATCH_INFO_AOT_MODULE) {
5944 /* Stored in a GOT slot initialized at module load time */
5945 patch_info->type = MONO_PATCH_INFO_NONE;
5946 continue;
5947 }
5948
5949 if (is_plt_patch (patch_info) && !(cfg->compile_llvm && acfg->aot_opts.llvm_only)) {
5950 /* Calls are made through the PLT */
5951 patch_info->type = MONO_PATCH_INFO_NONE;
5952 continue;
5953 }
5954
5955 n_patches ++;
5956 }
5957
5958 if (n_patches)
5959 g_assert (cfg->has_got_slots);
5960
5961 encode_patch_list (acfg, patches, n_patches, cfg->compile_llvm, first_got_offset, p, &p);
5962
5963 g_ptr_array_free (patches, TRUE);
5964
5965 acfg->stats.info_size += p - buf;
5966
5967 g_assert (p - buf < buf_size);
5968
5969 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
5970 g_free (buf);
5971 }
5972
5973 static guint32
5974 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
5975 {
5976 guint32 cache_index;
5977 guint32 offset;
5978
5979 /* Reuse the unwind module to canonize and store unwind info entries */
5980 cache_index = mono_cache_unwind_info (encoded, encoded_len);
5981
5982 /* Use +/- 1 to distinguish 0s from missing entries */
5983 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
5984 if (offset)
5985 return offset - 1;
5986 else {
5987 guint8 buf [16];
5988 guint8 *p;
5989
5990 /*
5991 * It would be easier to use assembler symbols, but the caller needs an
5992 * offset now.
5993 */
5994 offset = acfg->unwind_info_offset;
5995 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
5996 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
5997
5998 p = buf;
5999 encode_value (encoded_len, p, &p);
6000
6001 acfg->unwind_info_offset += encoded_len + (p - buf);
6002 return offset;
6003 }
6004 }
6005
6006 static void
6007 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg, gboolean store_seq_points)
6008 {
6009 int i, k, buf_size;
6010 guint32 debug_info_size, seq_points_size;
6011 guint8 *code;
6012 MonoMethodHeader *header;
6013 guint8 *p, *buf, *debug_info;
6014 MonoJitInfo *jinfo = cfg->jit_info;
6015 guint32 flags;
6016 gboolean use_unwind_ops = FALSE;
6017 MonoSeqPointInfo *seq_points;
6018
6019 code = cfg->native_code;
6020 header = cfg->header;
6021
6022 if (!acfg->aot_opts.nodebug) {
6023 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
6024 } else {
6025 debug_info = NULL;
6026 debug_info_size = 0;
6027 }
6028
6029 seq_points = cfg->seq_point_info;
6030 seq_points_size = (store_seq_points)? mono_seq_point_info_get_write_size (seq_points) : 0;
6031
6032 buf_size = header->num_clauses * 256 + debug_info_size + 2048 + seq_points_size + cfg->gc_map_size;
6033
6034 p = buf = (guint8 *)g_malloc (buf_size);
6035
6036 use_unwind_ops = cfg->unwind_ops != NULL;
6037
6038 flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0) | (header->num_clauses ? 4 : 0) | (seq_points_size ? 8 : 0) | (cfg->compile_llvm ? 16 : 0) | (jinfo->has_try_block_holes ? 32 : 0) | (cfg->gc_map ? 64 : 0) | (jinfo->has_arch_eh_info ? 128 : 0);
6039
6040 encode_value (flags, p, &p);
6041
6042 if (use_unwind_ops) {
6043 guint32 encoded_len;
6044 guint8 *encoded;
6045 guint32 unwind_desc;
6046
6047 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
6048
6049 unwind_desc = get_unwind_info_offset (acfg, encoded, encoded_len);
6050 encode_value (unwind_desc, p, &p);
6051
6052 g_free (encoded);
6053 } else {
6054 encode_value (jinfo->unwind_info, p, &p);
6055 }
6056
6057 /*Encode the number of holes before the number of clauses to make decoding easier*/
6058 if (jinfo->has_try_block_holes) {
6059 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
6060 encode_value (table->num_holes, p, &p);
6061 }
6062
6063 if (jinfo->has_arch_eh_info) {
6064 /*
6065 * In AOT mode, the code length is calculated from the address of the previous method,
6066 * which could include alignment padding, so calculating the start of the epilog as
6067 * code_len - epilog_size is correct any more. Save the real code len as a workaround.
6068 */
6069 encode_value (jinfo->code_size, p, &p);
6070 }
6071
6072 /* Exception table */
6073 if (cfg->compile_llvm) {
6074 /*
6075 * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc.,
6076 * since the information is only available to llc. Instead, we let llc save the data
6077 * into the LSDA, and read it from there at runtime.
6078 */
6079 /* The assembly might be CIL stripped so emit the data ourselves */
6080 if (header->num_clauses)
6081 encode_value (header->num_clauses, p, &p);
6082
6083 for (k = 0; k < header->num_clauses; ++k) {
6084 MonoExceptionClause *clause;
6085
6086 clause = &header->clauses [k];
6087
6088 encode_value (clause->flags, p, &p);
6089 if (clause->data.catch_class) {
6090 encode_value (1, p, &p);
6091 encode_klass_ref (acfg, clause->data.catch_class, p, &p);
6092 } else {
6093 encode_value (0, p, &p);
6094 }
6095
6096 /* Emit the IL ranges too, since they might not be available at runtime */
6097 encode_value (clause->try_offset, p, &p);
6098 encode_value (clause->try_len, p, &p);
6099 encode_value (clause->handler_offset, p, &p);
6100 encode_value (clause->handler_len, p, &p);
6101
6102 /* Emit a list of nesting clauses */
6103 for (i = 0; i < header->num_clauses; ++i) {
6104 gint32 cindex1 = k;
6105 MonoExceptionClause *clause1 = &header->clauses [cindex1];
6106 gint32 cindex2 = i;
6107 MonoExceptionClause *clause2 = &header->clauses [cindex2];
6108
6109 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset)
6110 encode_value (i, p, &p);
6111 }
6112 encode_value (-1, p, &p);
6113 }
6114 } else {
6115 if (jinfo->num_clauses)
6116 encode_value (jinfo->num_clauses, p, &p);
6117
6118 for (k = 0; k < jinfo->num_clauses; ++k) {
6119 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
6120
6121 encode_value (ei->flags, p, &p);
6122 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
6123 /* Not used for catch clauses */
6124 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
6125 encode_value (ei->exvar_offset, p, &p);
6126 #else
6127 encode_value (ei->exvar_offset, p, &p);
6128 #endif
6129
6130 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
6131 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
6132 else {
6133 if (ei->data.catch_class) {
6134 guint8 *buf2, *p2;
6135 int len;
6136
6137 buf2 = (guint8 *)g_malloc (4096);
6138 p2 = buf2;
6139 encode_klass_ref (acfg, ei->data.catch_class, p2, &p2);
6140 len = p2 - buf2;
6141 g_assert (len < 4096);
6142 encode_value (len, p, &p);
6143 memcpy (p, buf2, len);
6144 p += p2 - buf2;
6145 g_free (buf2);
6146 } else {
6147 encode_value (0, p, &p);
6148 }
6149 }
6150
6151 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
6152 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
6153 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
6154 }
6155 }
6156
6157 if (jinfo->has_try_block_holes) {
6158 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
6159 for (i = 0; i < table->num_holes; ++i) {
6160 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
6161 encode_value (hole->clause, p, &p);
6162 encode_value (hole->length, p, &p);
6163 encode_value (hole->offset, p, &p);
6164 }
6165 }
6166
6167 if (jinfo->has_arch_eh_info) {
6168 MonoArchEHJitInfo *eh_info;
6169
6170 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
6171 encode_value (eh_info->stack_size, p, &p);
6172 encode_value (eh_info->epilog_size, p, &p);
6173 }
6174
6175 if (jinfo->has_generic_jit_info) {
6176 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
6177 MonoGenericSharingContext* gsctx = gi->generic_sharing_context;
6178 guint8 *buf2, *p2;
6179 int len;
6180
6181 encode_value (gi->nlocs, p, &p);
6182 if (gi->nlocs) {
6183 for (i = 0; i < gi->nlocs; ++i) {
6184 MonoDwarfLocListEntry *entry = &gi->locations [i];
6185
6186 encode_value (entry->is_reg ? 1 : 0, p, &p);
6187 encode_value (entry->reg, p, &p);
6188 if (!entry->is_reg)
6189 encode_value (entry->offset, p, &p);
6190 if (i == 0)
6191 g_assert (entry->from == 0);
6192 else
6193 encode_value (entry->from, p, &p);
6194 encode_value (entry->to, p, &p);
6195 }
6196 } else {
6197 if (!cfg->compile_llvm) {
6198 encode_value (gi->has_this ? 1 : 0, p, &p);
6199 encode_value (gi->this_reg, p, &p);
6200 encode_value (gi->this_offset, p, &p);
6201 }
6202 }
6203
6204 /*
6205 * Need to encode jinfo->method too, since it is not equal to 'method'
6206 * when using generic sharing.
6207 */
6208 buf2 = (guint8 *)g_malloc (4096);
6209 p2 = buf2;
6210 encode_method_ref (acfg, jinfo->d.method, p2, &p2);
6211 len = p2 - buf2;
6212 g_assert (len < 4096);
6213 encode_value (len, p, &p);
6214 memcpy (p, buf2, len);
6215 p += p2 - buf2;
6216 g_free (buf2);
6217
6218 if (gsctx && gsctx->is_gsharedvt) {
6219 encode_value (1, p, &p);
6220 } else {
6221 encode_value (0, p, &p);
6222 }
6223 }
6224
6225 if (seq_points_size)
6226 p += mono_seq_point_info_write (seq_points, p);
6227
6228 g_assert (debug_info_size < buf_size);
6229
6230 encode_value (debug_info_size, p, &p);
6231 if (debug_info_size) {
6232 memcpy (p, debug_info, debug_info_size);
6233 p += debug_info_size;
6234 g_free (debug_info);
6235 }
6236
6237 /* GC Map */
6238 if (cfg->gc_map) {
6239 encode_value (cfg->gc_map_size, p, &p);
6240 /* The GC map requires 4 bytes of alignment */
6241 while ((gsize)p % 4)
6242 p ++;
6243 memcpy (p, cfg->gc_map, cfg->gc_map_size);
6244 p += cfg->gc_map_size;
6245 }
6246
6247 acfg->stats.ex_info_size += p - buf;
6248
6249 g_assert (p - buf < buf_size);
6250
6251 /* Emit info */
6252 /* The GC Map requires 4 byte alignment */
6253 cfg->ex_info_offset = add_to_blob_aligned (acfg, buf, p - buf, cfg->gc_map ? 4 : 1);
6254 g_free (buf);
6255 }
6256
6257 static guint32
6258 emit_klass_info (MonoAotCompile *acfg, guint32 token)
6259 {
6260 MonoError error;
6261 MonoClass *klass = mono_class_get_checked (acfg->image, token, &error);
6262 guint8 *p, *buf;
6263 int i, buf_size, res;
6264 gboolean no_special_static, cant_encode;
6265 gpointer iter = NULL;
6266
6267 if (!klass) {
6268 mono_error_cleanup (&error);
6269
6270 buf_size = 16;
6271
6272 p = buf = (guint8 *)g_malloc (buf_size);
6273
6274 /* Mark as unusable */
6275 encode_value (-1, p, &p);
6276
6277 res = add_to_blob (acfg, buf, p - buf);
6278 g_free (buf);
6279
6280 return res;
6281 }
6282
6283 buf_size = 10240 + (klass->vtable_size * 16);
6284 p = buf = (guint8 *)g_malloc (buf_size);
6285
6286 g_assert (klass);
6287
6288 mono_class_init (klass);
6289
6290 mono_class_get_nested_types (klass, &iter);
6291 g_assert (klass->nested_classes_inited);
6292
6293 mono_class_setup_vtable (klass);
6294
6295 /*
6296 * Emit all the information which is required for creating vtables so
6297 * the runtime does not need to create the MonoMethod structures which
6298 * take up a lot of space.
6299 */
6300
6301 no_special_static = !mono_class_has_special_static_fields (klass);
6302
6303 /* Check whenever we have enough info to encode the vtable */
6304 cant_encode = FALSE;
6305 for (i = 0; i < klass->vtable_size; ++i) {
6306 MonoMethod *cm = klass->vtable [i];
6307
6308 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
6309 cant_encode = TRUE;
6310 }
6311
6312 mono_class_has_finalizer (klass);
6313 if (mono_class_has_failure (klass))
6314 cant_encode = TRUE;
6315
6316 if (mono_class_is_gtd (klass) || cant_encode) {
6317 encode_value (-1, p, &p);
6318 } else {
6319 gboolean has_nested = mono_class_get_nested_classes_property (klass) != NULL;
6320 encode_value (klass->vtable_size, p, &p);
6321 encode_value ((mono_class_is_gtd (klass) ? (1 << 8) : 0) | (no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | (has_nested ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p);
6322 if (klass->has_cctor)
6323 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
6324 if (klass->has_finalize)
6325 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
6326
6327 encode_value (klass->instance_size, p, &p);
6328 encode_value (mono_class_data_size (klass), p, &p);
6329 encode_value (klass->packing_size, p, &p);
6330 encode_value (klass->min_align, p, &p);
6331
6332 for (i = 0; i < klass->vtable_size; ++i) {
6333 MonoMethod *cm = klass->vtable [i];
6334
6335 if (cm)
6336 encode_method_ref (acfg, cm, p, &p);
6337 else
6338 encode_value (0, p, &p);
6339 }
6340 }
6341
6342 acfg->stats.class_info_size += p - buf;
6343
6344 g_assert (p - buf < buf_size);
6345 res = add_to_blob (acfg, buf, p - buf);
6346 g_free (buf);
6347
6348 return res;
6349 }
6350
6351 static char*
6352 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache)
6353 {
6354 char *debug_sym = NULL;
6355 char *prefix;
6356
6357 if (acfg->llvm && llvm_acfg->aot_opts.static_link) {
6358 /* Need to add a prefix to create unique symbols */
6359 prefix = g_strdup_printf ("plt_%s_", acfg->assembly_name_sym);
6360 } else {
6361 #if defined(TARGET_WIN32) && defined(TARGET_X86)
6362 prefix = mangle_symbol_alloc ("plt_");
6363 #else
6364 prefix = g_strdup ("plt_");
6365 #endif
6366 }
6367
6368 switch (ji->type) {
6369 case MONO_PATCH_INFO_METHOD:
6370 debug_sym = get_debug_sym (ji->data.method, prefix, cache);
6371 break;
6372 case MONO_PATCH_INFO_INTERNAL_METHOD:
6373 debug_sym = g_strdup_printf ("%s_jit_icall_%s", prefix, ji->data.name);
6374 break;
6375 case MONO_PATCH_INFO_RGCTX_FETCH:
6376 debug_sym = g_strdup_printf ("%s_rgctx_fetch_%d", prefix, acfg->label_generator ++);
6377 break;
6378 case MONO_PATCH_INFO_ICALL_ADDR:
6379 case MONO_PATCH_INFO_ICALL_ADDR_CALL: {
6380 char *s = get_debug_sym (ji->data.method, "", cache);
6381
6382 debug_sym = g_strdup_printf ("%s_icall_native_%s", prefix, s);
6383 g_free (s);
6384 break;
6385 }
6386 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
6387 debug_sym = g_strdup_printf ("%s_jit_icall_native_%s", prefix, ji->data.name);
6388 break;
6389 default:
6390 break;
6391 }
6392
6393 g_free (prefix);
6394
6395 return sanitize_symbol (acfg, debug_sym);
6396 }
6397
6398 /*
6399 * Calls made from AOTed code are routed through a table of jumps similar to the
6400 * ELF PLT (Program Linkage Table). Initially the PLT entries jump to code which transfers
6401 * control to the AOT runtime through a trampoline.
6402 */
6403 static void
6404 emit_plt (MonoAotCompile *acfg)
6405 {
6406 int i;
6407
6408 if (acfg->aot_opts.llvm_only) {
6409 g_assert (acfg->plt_offset == 1);
6410 return;
6411 }
6412
6413 emit_line (acfg);
6414
6415 emit_section_change (acfg, ".text", 0);
6416 emit_alignment_code (acfg, 16);
6417 emit_info_symbol (acfg, "plt");
6418 emit_label (acfg, acfg->plt_symbol);
6419
6420 for (i = 0; i < acfg->plt_offset; ++i) {
6421 char *debug_sym = NULL;
6422 MonoPltEntry *plt_entry = NULL;
6423
6424 if (i == 0)
6425 /*
6426 * The first plt entry is unused.
6427 */
6428 continue;
6429
6430 plt_entry = (MonoPltEntry *)g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
6431
6432 debug_sym = plt_entry->debug_sym;
6433
6434 if (acfg->thumb_mixed && !plt_entry->jit_used)
6435 /* Emit only a thumb version */
6436 continue;
6437
6438 /* Skip plt entries not actually called */
6439 if (!plt_entry->jit_used && !plt_entry->llvm_used)
6440 continue;
6441
6442 if (acfg->llvm && !acfg->thumb_mixed) {
6443 emit_label (acfg, plt_entry->llvm_symbol);
6444 if (acfg->llvm) {
6445 emit_global_inner (acfg, plt_entry->llvm_symbol, TRUE);
6446 #if defined(TARGET_MACH)
6447 fprintf (acfg->fp, ".private_extern %s\n", plt_entry->llvm_symbol);
6448 #endif
6449 }
6450 }
6451
6452 if (debug_sym) {
6453 if (acfg->need_no_dead_strip) {
6454 emit_unset_mode (acfg);
6455 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
6456 }
6457 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
6458 emit_label (acfg, debug_sym);
6459 }
6460
6461 emit_label (acfg, plt_entry->symbol);
6462
6463 arch_emit_plt_entry (acfg, acfg->got_symbol, (acfg->plt_got_offset_base + i) * sizeof (gpointer), acfg->plt_got_info_offsets [i]);
6464
6465 if (debug_sym)
6466 emit_symbol_size (acfg, debug_sym, ".");
6467 }
6468
6469 if (acfg->thumb_mixed) {
6470 /* Make sure the ARM symbols don't alias the thumb ones */
6471 emit_zero_bytes (acfg, 16);
6472
6473 /*
6474 * Emit a separate set of PLT entries using thumb2 which is called by LLVM generated
6475 * code.
6476 */
6477 for (i = 0; i < acfg->plt_offset; ++i) {
6478 char *debug_sym = NULL;
6479 MonoPltEntry *plt_entry = NULL;
6480
6481 if (i == 0)
6482 continue;
6483
6484 plt_entry = (MonoPltEntry *)g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
6485
6486 /* Skip plt entries not actually called by LLVM code */
6487 if (!plt_entry->llvm_used)
6488 continue;
6489
6490 if (acfg->aot_opts.write_symbols) {
6491 if (plt_entry->debug_sym)
6492 debug_sym = g_strdup_printf ("%s_thumb", plt_entry->debug_sym);
6493 }
6494
6495 if (debug_sym) {
6496 #if defined(TARGET_MACH)
6497 fprintf (acfg->fp, " .thumb_func %s\n", debug_sym);
6498 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
6499 #endif
6500 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
6501 emit_label (acfg, debug_sym);
6502 }
6503 fprintf (acfg->fp, "\n.thumb_func\n");
6504
6505 emit_label (acfg, plt_entry->llvm_symbol);
6506
6507 if (acfg->llvm)
6508 emit_global_inner (acfg, plt_entry->llvm_symbol, TRUE);
6509
6510 arch_emit_llvm_plt_entry (acfg, acfg->got_symbol, (acfg->plt_got_offset_base + i) * sizeof (gpointer), acfg->plt_got_info_offsets [i]);
6511
6512 if (debug_sym) {
6513 emit_symbol_size (acfg, debug_sym, ".");
6514 g_free (debug_sym);
6515 }
6516 }
6517 }
6518
6519 emit_symbol_size (acfg, acfg->plt_symbol, ".");
6520
6521 emit_info_symbol (acfg, "plt_end");
6522 }
6523
6524 /*
6525 * emit_trampoline_full:
6526 *
6527 * If EMIT_TINFO is TRUE, emit additional information which can be used to create a MonoJitInfo for this trampoline by
6528 * create_jit_info_for_trampoline ().
6529 */
6530 static G_GNUC_UNUSED void
6531 emit_trampoline_full (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info, gboolean emit_tinfo)
6532 {
6533 char start_symbol [MAX_SYMBOL_SIZE];
6534 char end_symbol [MAX_SYMBOL_SIZE];
6535 char symbol [MAX_SYMBOL_SIZE];
6536 guint32 buf_size, info_offset;
6537 MonoJumpInfo *patch_info;
6538 guint8 *buf, *p;
6539 GPtrArray *patches;
6540 char *name;
6541 guint8 *code;
6542 guint32 code_size;
6543 MonoJumpInfo *ji;
6544 GSList *unwind_ops;
6545
6546 g_assert (info);
6547
6548 name = info->name;
6549 code = info->code;
6550 code_size = info->code_size;
6551 ji = info->ji;
6552 unwind_ops = info->unwind_ops;
6553
6554 /* Emit code */
6555
6556 sprintf (start_symbol, "%s%s", acfg->user_symbol_prefix, name);
6557
6558 emit_section_change (acfg, ".text", 0);
6559 emit_global (acfg, start_symbol, TRUE);
6560 emit_alignment_code (acfg, AOT_FUNC_ALIGNMENT);
6561 emit_label (acfg, start_symbol);
6562
6563 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
6564 emit_label (acfg, symbol);
6565
6566 /*
6567 * The code should access everything through the GOT, so we pass
6568 * TRUE here.
6569 */
6570 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE, NULL);
6571
6572 emit_symbol_size (acfg, start_symbol, ".");
6573
6574 if (emit_tinfo) {
6575 sprintf (end_symbol, "%snamede_%s", acfg->temp_prefix, name);
6576 emit_label (acfg, end_symbol);
6577 }
6578
6579 /* Emit info */
6580
6581 /* Sort relocations */
6582 patches = g_ptr_array_new ();
6583 for (patch_info = ji; patch_info; patch_info = patch_info->next)
6584 if (patch_info->type != MONO_PATCH_INFO_NONE)
6585 g_ptr_array_add (patches, patch_info);
6586 g_ptr_array_sort (patches, compare_patches);
6587
6588 buf_size = patches->len * 128 + 128;
6589 buf = (guint8 *)g_malloc (buf_size);
6590 p = buf;
6591
6592 encode_patch_list (acfg, patches, patches->len, FALSE, got_offset, p, &p);
6593 g_assert (p - buf < buf_size);
6594 g_ptr_array_free (patches, TRUE);
6595
6596 sprintf (symbol, "%s%s_p", acfg->user_symbol_prefix, name);
6597
6598 info_offset = add_to_blob (acfg, buf, p - buf);
6599
6600 emit_section_change (acfg, RODATA_SECT, 0);
6601 emit_global (acfg, symbol, FALSE);
6602 emit_label (acfg, symbol);
6603
6604 emit_int32 (acfg, info_offset);
6605
6606 if (emit_tinfo) {
6607 guint8 *encoded;
6608 guint32 encoded_len;
6609 guint32 uw_offset;
6610
6611 /*
6612 * Emit additional information which can be used to reconstruct a partial MonoTrampInfo.
6613 */
6614 encoded = mono_unwind_ops_encode (info->unwind_ops, &encoded_len);
6615 uw_offset = get_unwind_info_offset (acfg, encoded, encoded_len);
6616 g_free (encoded);
6617
6618 emit_symbol_diff (acfg, end_symbol, start_symbol, 0);
6619 emit_int32 (acfg, uw_offset);
6620 }
6621
6622 /* Emit debug info */
6623 if (unwind_ops) {
6624 char symbol2 [MAX_SYMBOL_SIZE];
6625
6626 sprintf (symbol, "%s", name);
6627 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
6628
6629 if (acfg->dwarf)
6630 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
6631 }
6632
6633 g_free (buf);
6634 }
6635
6636 static G_GNUC_UNUSED void
6637 emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info)
6638 {
6639 emit_trampoline_full (acfg, got_offset, info, TRUE);
6640 }
6641
6642 static void
6643 emit_trampolines (MonoAotCompile *acfg)
6644 {
6645 char symbol [MAX_SYMBOL_SIZE];
6646 char end_symbol [MAX_SYMBOL_SIZE];
6647 int i, tramp_got_offset;
6648 int ntype;
6649 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
6650 int tramp_type;
6651 #endif
6652
6653 if (!mono_aot_mode_is_full (&acfg->aot_opts) || acfg->aot_opts.llvm_only)
6654 return;
6655
6656 g_assert (acfg->image->assembly);
6657
6658 /* Currently, we emit most trampolines into the mscorlib AOT image. */
6659 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
6660 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
6661 MonoTrampInfo *info;
6662
6663 /*
6664 * Emit the generic trampolines.
6665 *
6666 * We could save some code by treating the generic trampolines as a wrapper
6667 * method, but that approach has its own complexities, so we choose the simpler
6668 * method.
6669 */
6670 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
6671 /* we overload the boolean here to indicate the slightly different trampoline needed, see mono_arch_create_generic_trampoline() */
6672 #ifdef DISABLE_REMOTING
6673 if (tramp_type == MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING)
6674 continue;
6675 #endif
6676 #ifndef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD
6677 if (tramp_type == MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD)
6678 continue;
6679 #endif
6680 mono_arch_create_generic_trampoline ((MonoTrampolineType)tramp_type, &info, acfg->aot_opts.use_trampolines_page? 2: TRUE);
6681 emit_trampoline (acfg, acfg->got_offset, info);
6682 }
6683
6684 /* Emit the exception related code pieces */
6685 mono_arch_get_restore_context (&info, TRUE);
6686 emit_trampoline (acfg, acfg->got_offset, info);
6687 mono_arch_get_call_filter (&info, TRUE);
6688 emit_trampoline (acfg, acfg->got_offset, info);
6689 mono_arch_get_throw_exception (&info, TRUE);
6690 emit_trampoline (acfg, acfg->got_offset, info);
6691 mono_arch_get_rethrow_exception (&info, TRUE);
6692 emit_trampoline (acfg, acfg->got_offset, info);
6693 mono_arch_get_throw_corlib_exception (&info, TRUE);
6694 emit_trampoline (acfg, acfg->got_offset, info);
6695
6696 #ifdef MONO_ARCH_HAVE_SDB_TRAMPOLINES
6697 mono_arch_create_sdb_trampoline (TRUE, &info, TRUE);
6698 emit_trampoline (acfg, acfg->got_offset, info);
6699 mono_arch_create_sdb_trampoline (FALSE, &info, TRUE);
6700 emit_trampoline (acfg, acfg->got_offset, info);
6701 #endif
6702
6703 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
6704 mono_arch_get_gsharedvt_trampoline (&info, TRUE);
6705 if (info) {
6706 emit_trampoline_full (acfg, acfg->got_offset, info, TRUE);
6707
6708 /* Create a separate out trampoline for more information in stack traces */
6709 info->name = g_strdup ("gsharedvt_out_trampoline");
6710 emit_trampoline_full (acfg, acfg->got_offset, info, TRUE);
6711 }
6712 #endif
6713
6714 #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES)
6715 {
6716 GSList *l = mono_arch_get_trampolines (TRUE);
6717
6718 while (l) {
6719 MonoTrampInfo *info = (MonoTrampInfo *)l->data;
6720
6721 emit_trampoline (acfg, acfg->got_offset, info);
6722 l = l->next;
6723 }
6724 }
6725 #endif
6726
6727 for (i = 0; i < acfg->aot_opts.nrgctx_fetch_trampolines; ++i) {
6728 int offset;
6729
6730 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
6731 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
6732 emit_trampoline (acfg, acfg->got_offset, info);
6733 g_free (info);
6734
6735 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
6736 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
6737 emit_trampoline (acfg, acfg->got_offset, info);
6738 g_free (info);
6739 }
6740
6741 #ifdef MONO_ARCH_HAVE_GENERAL_RGCTX_LAZY_FETCH_TRAMPOLINE
6742 mono_arch_create_general_rgctx_lazy_fetch_trampoline (&info, TRUE);
6743 emit_trampoline (acfg, acfg->got_offset, info);
6744 #endif
6745
6746 {
6747 GSList *l;
6748
6749 /* delegate_invoke_impl trampolines */
6750 l = mono_arch_get_delegate_invoke_impls ();
6751 while (l) {
6752 MonoTrampInfo *info = (MonoTrampInfo *)l->data;
6753
6754 emit_trampoline (acfg, acfg->got_offset, info);
6755 l = l->next;
6756 }
6757 }
6758
6759 #ifdef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD_AOT
6760 mono_arch_create_handler_block_trampoline (&info, TRUE);
6761 emit_trampoline (acfg, acfg->got_offset, info);
6762 #endif
6763
6764 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
6765
6766 /* Emit trampolines which are numerous */
6767
6768 /*
6769 * These include the following:
6770 * - specific trampolines
6771 * - static rgctx invoke trampolines
6772 * - imt trampolines
6773 * These trampolines have the same code, they are parameterized by GOT
6774 * slots.
6775 * They are defined in this file, in the arch_... routines instead of
6776 * in tramp-<ARCH>.c, since it is easier to do it this way.
6777 */
6778
6779 /*
6780 * When running in aot-only mode, we can't create specific trampolines at
6781 * runtime, so we create a few, and save them in the AOT file.
6782 * Normal trampolines embed their argument as a literal inside the
6783 * trampoline code, we can't do that here, so instead we embed an offset
6784 * which needs to be added to the trampoline address to get the address of
6785 * the GOT slot which contains the argument value.
6786 * The generated trampolines jump to the generic trampolines using another
6787 * GOT slot, which will be setup by the AOT loader to point to the
6788 * generic trampoline code of the given type.
6789 */
6790
6791 /*
6792 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
6793 * each class).
6794 */
6795
6796 emit_section_change (acfg, ".text", 0);
6797
6798 tramp_got_offset = acfg->got_offset;
6799
6800 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
6801 switch (ntype) {
6802 case MONO_AOT_TRAMP_SPECIFIC:
6803 sprintf (symbol, "specific_trampolines");
6804 break;
6805 case MONO_AOT_TRAMP_STATIC_RGCTX:
6806 sprintf (symbol, "static_rgctx_trampolines");
6807 break;
6808 case MONO_AOT_TRAMP_IMT:
6809 sprintf (symbol, "imt_trampolines");
6810 break;
6811 case MONO_AOT_TRAMP_GSHAREDVT_ARG:
6812 sprintf (symbol, "gsharedvt_arg_trampolines");
6813 break;
6814 default:
6815 g_assert_not_reached ();
6816 }
6817
6818 sprintf (end_symbol, "%s_e", symbol);
6819
6820 if (acfg->aot_opts.write_symbols)
6821 emit_local_symbol (acfg, symbol, end_symbol, TRUE);
6822
6823 emit_alignment_code (acfg, AOT_FUNC_ALIGNMENT);
6824 emit_info_symbol (acfg, symbol);
6825
6826 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
6827
6828 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
6829 int tramp_size = 0;
6830
6831 switch (ntype) {
6832 case MONO_AOT_TRAMP_SPECIFIC:
6833 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
6834 tramp_got_offset += 2;
6835 break;
6836 case MONO_AOT_TRAMP_STATIC_RGCTX:
6837 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
6838 tramp_got_offset += 2;
6839 break;
6840 case MONO_AOT_TRAMP_IMT:
6841 arch_emit_imt_trampoline (acfg, tramp_got_offset, &tramp_size);
6842 tramp_got_offset += 1;
6843 break;
6844 case MONO_AOT_TRAMP_GSHAREDVT_ARG:
6845 arch_emit_gsharedvt_arg_trampoline (acfg, tramp_got_offset, &tramp_size);
6846 tramp_got_offset += 2;
6847 break;
6848 default:
6849 g_assert_not_reached ();
6850 }
6851 if (!acfg->trampoline_size [ntype]) {
6852 g_assert (tramp_size);
6853 acfg->trampoline_size [ntype] = tramp_size;
6854 }
6855 }
6856
6857 emit_label (acfg, end_symbol);
6858 emit_int32 (acfg, 0);
6859 }
6860
6861 arch_emit_specific_trampoline_pages (acfg);
6862
6863 /* Reserve some entries at the end of the GOT for our use */
6864 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
6865 }
6866
6867 acfg->got_offset += acfg->num_trampoline_got_entries;
6868 }
6869
6870 static gboolean
6871 str_begins_with (const char *str1, const char *str2)
6872 {
6873 int len = strlen (str2);
6874 return strncmp (str1, str2, len) == 0;
6875 }
6876
6877 void*
6878 mono_aot_readonly_field_override (MonoClassField *field)
6879 {
6880 ReadOnlyValue *rdv;
6881 for (rdv = readonly_values; rdv; rdv = rdv->next) {
6882 char *p = rdv->name;
6883 int len;
6884 len = strlen (field->parent->name_space);
6885 if (strncmp (p, field->parent->name_space, len))
6886 continue;
6887 p += len;
6888 if (*p++ != '.')
6889 continue;
6890 len = strlen (field->parent->name);
6891 if (strncmp (p, field->parent->name, len))
6892 continue;
6893 p += len;
6894 if (*p++ != '.')
6895 continue;
6896 if (strcmp (p, field->name))
6897 continue;
6898 switch (rdv->type) {
6899 case MONO_TYPE_I1:
6900 return &rdv->value.i1;
6901 case MONO_TYPE_I2:
6902 return &rdv->value.i2;
6903 case MONO_TYPE_I4:
6904 return &rdv->value.i4;
6905 default:
6906 break;
6907 }
6908 }
6909 return NULL;
6910 }
6911
6912 static void
6913 add_readonly_value (MonoAotOptions *opts, const char *val)
6914 {
6915 ReadOnlyValue *rdv;
6916 const char *fval;
6917 const char *tval;
6918 /* the format of val is:
6919 * namespace.typename.fieldname=type/value
6920 * type can be i1 for uint8/int8/boolean, i2 for uint16/int16/char, i4 for uint32/int32
6921 */
6922 fval = strrchr (val, '/');
6923 if (!fval) {
6924 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing /.\n", val);
6925 exit (1);
6926 }
6927 tval = strrchr (val, '=');
6928 if (!tval) {
6929 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing =.\n", val);
6930 exit (1);
6931 }
6932 rdv = g_new0 (ReadOnlyValue, 1);
6933 rdv->name = (char *)g_malloc0 (tval - val + 1);
6934 memcpy (rdv->name, val, tval - val);
6935 tval++;
6936 fval++;
6937 if (strncmp (tval, "i1", 2) == 0) {
6938 rdv->value.i1 = atoi (fval);
6939 rdv->type = MONO_TYPE_I1;
6940 } else if (strncmp (tval, "i2", 2) == 0) {
6941 rdv->value.i2 = atoi (fval);
6942 rdv->type = MONO_TYPE_I2;
6943 } else if (strncmp (tval, "i4", 2) == 0) {
6944 rdv->value.i4 = atoi (fval);
6945 rdv->type = MONO_TYPE_I4;
6946 } else {
6947 fprintf (stderr, "AOT : unsupported type for readonly field '%s'.\n", tval);
6948 exit (1);
6949 }
6950 rdv->next = readonly_values;
6951 readonly_values = rdv;
6952 }
6953
6954 static gchar *
6955 clean_path (gchar * path)
6956 {
6957 if (!path)
6958 return NULL;
6959
6960 if (g_str_has_suffix (path, G_DIR_SEPARATOR_S))
6961 return path;
6962
6963 gchar *clean = g_strconcat (path, G_DIR_SEPARATOR_S, NULL);
6964 g_free (path);
6965
6966 return clean;
6967 }
6968
6969 static gchar *
6970 wrap_path (gchar * path)
6971 {
6972 int len;
6973 if (!path)
6974 return NULL;
6975
6976 // If the string contains no spaces, just return the original string.
6977 if (strstr (path, " ") == NULL)
6978 return path;
6979
6980 // If the string is already wrapped in quotes, return it.
6981 len = strlen (path);
6982 if (len >= 2 && path[0] == '\"' && path[len-1] == '\"')
6983 return path;
6984
6985 // If the string contains spaces, then wrap it in quotes.
6986 gchar *clean = g_strdup_printf ("\"%s\"", path);
6987
6988 return clean;
6989 }
6990
6991 // Duplicate a char range and add it to a ptrarray, but only if it is nonempty
6992 static void
6993 ptr_array_add_range_if_nonempty(GPtrArray *args, gchar const *start, gchar const *end)
6994 {
6995 ptrdiff_t len = end-start;
6996 if (len > 0)
6997 g_ptr_array_add (args, g_strndup (start, len));
6998 }
6999
7000 static GPtrArray *
7001 mono_aot_split_options (const char *aot_options)
7002 {
7003 enum MonoAotOptionState {
7004 MONO_AOT_OPTION_STATE_DEFAULT,
7005 MONO_AOT_OPTION_STATE_STRING,
7006 MONO_AOT_OPTION_STATE_ESCAPE,
7007 };
7008
7009 GPtrArray *args = g_ptr_array_new ();
7010 enum MonoAotOptionState state = MONO_AOT_OPTION_STATE_DEFAULT;
7011 gchar const *opt_start = aot_options;
7012 gboolean end_of_string = FALSE;
7013 gchar cur;
7014
7015 g_return_val_if_fail (aot_options != NULL, NULL);
7016
7017 while ((cur = *aot_options) != '\0') {
7018 if (state == MONO_AOT_OPTION_STATE_ESCAPE)
7019 goto next;
7020
7021 switch (cur) {
7022 case '"':
7023 // If we find a quote, then if we're in the default case then
7024 // it means we've found the start of a string, if not then it
7025 // means we've found the end of the string and should switch
7026 // back to the default case.
7027 switch (state) {
7028 case MONO_AOT_OPTION_STATE_DEFAULT:
7029 state = MONO_AOT_OPTION_STATE_STRING;
7030 break;
7031 case MONO_AOT_OPTION_STATE_STRING:
7032 state = MONO_AOT_OPTION_STATE_DEFAULT;
7033 break;
7034 case MONO_AOT_OPTION_STATE_ESCAPE:
7035 g_assert_not_reached ();
7036 break;
7037 }
7038 break;
7039 case '\\':
7040 // If we've found an escaping operator, then this means we
7041 // should not process the next character if inside a string.
7042 if (state == MONO_AOT_OPTION_STATE_STRING)
7043 state = MONO_AOT_OPTION_STATE_ESCAPE;
7044 break;
7045 case ',':
7046 // If we're in the default state then this means we've found
7047 // an option, store it for later processing.
7048 if (state == MONO_AOT_OPTION_STATE_DEFAULT)
7049 goto new_opt;
7050 break;
7051 }
7052
7053 next:
7054 aot_options++;
7055 restart:
7056 // If the next character is end of string, then process the last option.
7057 if (*(aot_options) == '\0') {
7058 end_of_string = TRUE;
7059 goto new_opt;
7060 }
7061 continue;
7062
7063 new_opt:
7064 ptr_array_add_range_if_nonempty (args, opt_start, aot_options);
7065 opt_start = ++aot_options;
7066 if (end_of_string)
7067 break;
7068 goto restart; // Check for null and continue loop
7069 }
7070
7071 return args;
7072 }
7073
7074 static void
7075 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
7076 {
7077 GPtrArray* args;
7078
7079 args = mono_aot_split_options (aot_options ? aot_options : "");
7080 for (int i = 0; i < args->len; ++i) {
7081 const char *arg = (const char *)g_ptr_array_index (args, i);
7082
7083 if (str_begins_with (arg, "outfile=")) {
7084 opts->outfile = g_strdup (arg + strlen ("outfile="));
7085 } else if (str_begins_with (arg, "llvm-outfile=")) {
7086 opts->llvm_outfile = g_strdup (arg + strlen ("llvm-outfile="));
7087 } else if (str_begins_with (arg, "temp-path=")) {
7088 opts->temp_path = clean_path (g_strdup (arg + strlen ("temp-path=")));
7089 } else if (str_begins_with (arg, "save-temps")) {
7090 opts->save_temps = TRUE;
7091 } else if (str_begins_with (arg, "keep-temps")) {
7092 opts->save_temps = TRUE;
7093 } else if (str_begins_with (arg, "write-symbols")) {
7094 opts->write_symbols = TRUE;
7095 } else if (str_begins_with (arg, "no-write-symbols")) {
7096 opts->write_symbols = FALSE;
7097 } else if (str_begins_with (arg, "metadata-only")) {
7098 opts->metadata_only = TRUE;
7099 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
7100 opts->bind_to_runtime_version = TRUE;
7101 } else if (str_begins_with (arg, "full")) {
7102 opts->mode = MONO_AOT_MODE_FULL;
7103 } else if (str_begins_with (arg, "hybrid")) {
7104 opts->mode = MONO_AOT_MODE_HYBRID;
7105 } else if (str_begins_with (arg, "threads=")) {
7106 opts->nthreads = atoi (arg + strlen ("threads="));
7107 } else if (str_begins_with (arg, "static")) {
7108 opts->static_link = TRUE;
7109 opts->no_dlsym = TRUE;
7110 } else if (str_begins_with (arg, "asmonly")) {
7111 opts->asm_only = TRUE;
7112 } else if (str_begins_with (arg, "asmwriter")) {
7113 opts->asm_writer = TRUE;
7114 } else if (str_begins_with (arg, "nodebug")) {
7115 opts->nodebug = TRUE;
7116 } else if (str_begins_with (arg, "dwarfdebug")) {
7117 opts->dwarf_debug = TRUE;
7118 } else if (str_begins_with (arg, "nopagetrampolines")) {
7119 opts->use_trampolines_page = FALSE;
7120 } else if (str_begins_with (arg, "ntrampolines=")) {
7121 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
7122 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
7123 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
7124 } else if (str_begins_with (arg, "nrgctx-fetch-trampolines=")) {
7125 opts->nrgctx_fetch_trampolines = atoi (arg + strlen ("nrgctx-fetch-trampolines="));
7126 } else if (str_begins_with (arg, "nimt-trampolines=")) {
7127 opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines="));
7128 } else if (str_begins_with (arg, "ngsharedvt-trampolines=")) {
7129 opts->ngsharedvt_arg_trampolines = atoi (arg + strlen ("ngsharedvt-trampolines="));
7130 } else if (str_begins_with (arg, "tool-prefix=")) {
7131 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
7132 } else if (str_begins_with (arg, "ld-flags=")) {
7133 opts->ld_flags = g_strdup (arg + strlen ("ld-flags="));
7134 } else if (str_begins_with (arg, "soft-debug")) {
7135 opts->soft_debug = TRUE;
7136 } else if (str_begins_with (arg, "gen-seq-points-file=")) {
7137 fprintf (stderr, "Mono Warning: aot option gen-seq-points-file= is deprecated.\n");
7138 } else if (str_begins_with (arg, "gen-seq-points-file")) {
7139 fprintf (stderr, "Mono Warning: aot option gen-seq-points-file is deprecated.\n");
7140 } else if (str_begins_with (arg, "msym-dir=")) {
7141 debug_options.no_seq_points_compact_data = FALSE;
7142 opts->gen_msym_dir = TRUE;
7143 opts->gen_msym_dir_path = g_strdup (arg + strlen ("msym_dir="));;
7144 } else if (str_begins_with (arg, "direct-pinvoke")) {
7145 opts->direct_pinvoke = TRUE;
7146 } else if (str_begins_with (arg, "direct-icalls")) {
7147 opts->direct_icalls = TRUE;
7148 } else if (str_begins_with (arg, "no-direct-calls")) {
7149 opts->no_direct_calls = TRUE;
7150 } else if (str_begins_with (arg, "print-skipped")) {
7151 opts->print_skipped_methods = TRUE;
7152 } else if (str_begins_with (arg, "stats")) {
7153 opts->stats = TRUE;
7154 } else if (str_begins_with (arg, "no-instances")) {
7155 opts->no_instances = TRUE;
7156 } else if (str_begins_with (arg, "log-generics")) {
7157 opts->log_generics = TRUE;
7158 } else if (str_begins_with (arg, "log-instances=")) {
7159 opts->log_instances = TRUE;
7160 opts->instances_logfile_path = g_strdup (arg + strlen ("log-instances="));
7161 } else if (str_begins_with (arg, "log-instances")) {
7162 opts->log_instances = TRUE;
7163 } else if (str_begins_with (arg, "internal-logfile=")) {
7164 opts->logfile = g_strdup (arg + strlen ("internal-logfile="));
7165 } else if (str_begins_with (arg, "mtriple=")) {
7166 opts->mtriple = g_strdup (arg + strlen ("mtriple="));
7167 } else if (str_begins_with (arg, "llvm-path=")) {
7168 opts->llvm_path = clean_path (g_strdup (arg + strlen ("llvm-path=")));
7169 } else if (!strcmp (arg, "llvm")) {
7170 opts->llvm = TRUE;
7171 } else if (str_begins_with (arg, "readonly-value=")) {
7172 add_readonly_value (opts, arg + strlen ("readonly-value="));
7173 } else if (str_begins_with (arg, "info")) {
7174 printf ("AOT target setup: %s.\n", AOT_TARGET_STR);
7175 exit (0);
7176 } else if (str_begins_with (arg, "gc-maps")) {
7177 mini_gc_enable_gc_maps_for_aot ();
7178 } else if (str_begins_with (arg, "dump")) {
7179 opts->dump_json = TRUE;
7180 } else if (str_begins_with (arg, "llvmonly")) {
7181 opts->mode = MONO_AOT_MODE_FULL;
7182 opts->llvm = TRUE;
7183 opts->llvm_only = TRUE;
7184 } else if (str_begins_with (arg, "data-outfile=")) {
7185 opts->data_outfile = g_strdup (arg + strlen ("data-outfile="));
7186 } else if (str_begins_with (arg, "help") || str_begins_with (arg, "?")) {
7187 printf ("Supported options for --aot:\n");
7188 printf (" outfile=\n");
7189 printf (" llvm-outfile=\n");
7190 printf (" llvm-path=\n");
7191 printf (" temp-path=\n");
7192 printf (" save-temps\n");
7193 printf (" keep-temps\n");
7194 printf (" write-symbols\n");
7195 printf (" metadata-only\n");
7196 printf (" bind-to-runtime-version\n");
7197 printf (" full\n");
7198 printf (" threads=\n");
7199 printf (" static\n");
7200 printf (" asmonly\n");
7201 printf (" asmwriter\n");
7202 printf (" nodebug\n");
7203 printf (" dwarfdebug\n");
7204 printf (" ntrampolines=\n");
7205 printf (" nrgctx-trampolines=\n");
7206 printf (" nimt-trampolines=\n");
7207 printf (" ngsharedvt-trampolines=\n");
7208 printf (" tool-prefix=\n");
7209 printf (" readonly-value=\n");
7210 printf (" soft-debug\n");
7211 printf (" msym-dir=\n");
7212 printf (" gc-maps\n");
7213 printf (" print-skipped\n");
7214 printf (" no-instances\n");
7215 printf (" stats\n");
7216 printf (" dump\n");
7217 printf (" info\n");
7218 printf (" help/?\n");
7219 exit (0);
7220 } else {
7221 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
7222 exit (1);
7223 }
7224
7225 g_free ((gpointer) arg);
7226 }
7227
7228 if (opts->use_trampolines_page) {
7229 opts->ntrampolines = 0;
7230 opts->nrgctx_trampolines = 0;
7231 opts->nimt_trampolines = 0;
7232 opts->ngsharedvt_arg_trampolines = 0;
7233 }
7234
7235 g_ptr_array_free (args, /*free_seg=*/TRUE);
7236 }
7237
7238 static void
7239 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
7240 {
7241 MonoMethod *method = (MonoMethod*)key;
7242 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
7243 MonoAotCompile *acfg = (MonoAotCompile *)user_data;
7244 MonoJumpInfoToken *new_ji;
7245
7246 new_ji = (MonoJumpInfoToken *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfoToken));
7247 new_ji->image = ji->image;
7248 new_ji->token = ji->token;
7249 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
7250 }
7251
7252 static gboolean
7253 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
7254 {
7255 if (klass->type_token)
7256 return TRUE;
7257 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR) || (klass->byval_arg.type == MONO_TYPE_PTR))
7258 return TRUE;
7259 if (klass->rank)
7260 return can_encode_class (acfg, klass->element_class);
7261 return FALSE;
7262 }
7263
7264 static gboolean
7265 can_encode_method (MonoAotCompile *acfg, MonoMethod *method)
7266 {
7267 if (method->wrapper_type) {
7268 switch (method->wrapper_type) {
7269 case MONO_WRAPPER_NONE:
7270 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
7271 case MONO_WRAPPER_XDOMAIN_INVOKE:
7272 case MONO_WRAPPER_STFLD:
7273 case MONO_WRAPPER_LDFLD:
7274 case MONO_WRAPPER_LDFLDA:
7275 case MONO_WRAPPER_STELEMREF:
7276 case MONO_WRAPPER_ISINST:
7277 case MONO_WRAPPER_PROXY_ISINST:
7278 case MONO_WRAPPER_ALLOC:
7279 case MONO_WRAPPER_REMOTING_INVOKE:
7280 case MONO_WRAPPER_UNKNOWN:
7281 case MONO_WRAPPER_WRITE_BARRIER:
7282 case MONO_WRAPPER_DELEGATE_INVOKE:
7283 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
7284 case MONO_WRAPPER_DELEGATE_END_INVOKE:
7285 case MONO_WRAPPER_SYNCHRONIZED:
7286 break;
7287 case MONO_WRAPPER_MANAGED_TO_MANAGED:
7288 case MONO_WRAPPER_CASTCLASS: {
7289 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
7290
7291 if (info)
7292 return TRUE;
7293 else
7294 return FALSE;
7295 break;
7296 }
7297 default:
7298 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
7299 return FALSE;
7300 }
7301 } else {
7302 if (!method->token) {
7303 /* The method is part of a constructed type like Int[,].Set (). */
7304 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
7305 if (method->klass->rank)
7306 return TRUE;
7307 return FALSE;
7308 }
7309 }
7310 }
7311 return TRUE;
7312 }
7313
7314 static gboolean
7315 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
7316 {
7317 switch (patch_info->type) {
7318 case MONO_PATCH_INFO_METHOD:
7319 case MONO_PATCH_INFO_METHODCONST:
7320 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
7321 MonoMethod *method = patch_info->data.method;
7322
7323 return can_encode_method (acfg, method);
7324 }
7325 case MONO_PATCH_INFO_VTABLE:
7326 case MONO_PATCH_INFO_CLASS:
7327 case MONO_PATCH_INFO_IID:
7328 case MONO_PATCH_INFO_ADJUSTED_IID:
7329 if (!can_encode_class (acfg, patch_info->data.klass)) {
7330 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
7331 return FALSE;
7332 }
7333 break;
7334 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE: {
7335 if (!can_encode_class (acfg, patch_info->data.del_tramp->klass)) {
7336 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
7337 return FALSE;
7338 }
7339 break;
7340 }
7341 case MONO_PATCH_INFO_RGCTX_FETCH:
7342 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
7343 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
7344
7345 if (!can_encode_method (acfg, entry->method))
7346 return FALSE;
7347 if (!can_encode_patch (acfg, entry->data))
7348 return FALSE;
7349 break;
7350 }
7351 default:
7352 break;
7353 }
7354
7355 return TRUE;
7356 }
7357
7358 static gboolean
7359 is_concrete_type (MonoType *t)
7360 {
7361 MonoClass *klass;
7362 int i;
7363
7364 if (t->type == MONO_TYPE_VAR || t->type == MONO_TYPE_MVAR)
7365 return FALSE;
7366 if (t->type == MONO_TYPE_GENERICINST) {
7367 MonoGenericContext *orig_ctx;
7368 MonoGenericInst *inst;
7369 MonoType *arg;
7370
7371 if (!MONO_TYPE_ISSTRUCT (t))
7372 return TRUE;
7373 klass = mono_class_from_mono_type (t);
7374 orig_ctx = &mono_class_get_generic_class (klass)->context;
7375
7376 inst = orig_ctx->class_inst;
7377 if (inst) {
7378 for (i = 0; i < inst->type_argc; ++i) {
7379 arg = mini_get_underlying_type (inst->type_argv [i]);
7380 if (!is_concrete_type (arg))
7381 return FALSE;
7382 }
7383 }
7384 inst = orig_ctx->method_inst;
7385 if (inst) {
7386 for (i = 0; i < inst->type_argc; ++i) {
7387 arg = mini_get_underlying_type (inst->type_argv [i]);
7388 if (!is_concrete_type (arg))
7389 return FALSE;
7390 }
7391 }
7392 }
7393 return TRUE;
7394 }
7395
7396 /* LOCKING: Assumes the loader lock is held */
7397 static void
7398 add_gsharedvt_wrappers (MonoAotCompile *acfg, MonoMethodSignature *sig, gboolean gsharedvt_in, gboolean gsharedvt_out)
7399 {
7400 MonoMethod *wrapper;
7401 gboolean concrete = TRUE;
7402 gboolean add_in = gsharedvt_in;
7403 gboolean add_out = gsharedvt_out;
7404
7405 if (gsharedvt_in && g_hash_table_lookup (acfg->gsharedvt_in_signatures, sig))
7406 add_in = FALSE;
7407 if (gsharedvt_out && g_hash_table_lookup (acfg->gsharedvt_out_signatures, sig))
7408 add_out = FALSE;
7409
7410 if (!add_in && !add_out)
7411 return;
7412
7413 if (mini_is_gsharedvt_variable_signature (sig))
7414 return;
7415
7416 if (add_in)
7417 g_hash_table_insert (acfg->gsharedvt_in_signatures, sig, sig);
7418 if (add_out)
7419 g_hash_table_insert (acfg->gsharedvt_out_signatures, sig, sig);
7420
7421 if (!sig->has_type_parameters) {
7422 //printf ("%s\n", mono_signature_full_name (sig));
7423
7424 if (gsharedvt_in) {
7425 wrapper = mini_get_gsharedvt_in_sig_wrapper (sig);
7426 add_extra_method (acfg, wrapper);
7427 }
7428 if (gsharedvt_out) {
7429 wrapper = mini_get_gsharedvt_out_sig_wrapper (sig);
7430 add_extra_method (acfg, wrapper);
7431 }
7432 } else {
7433 /* For signatures creared during generic sharing, convert them to a concrete signature if possible */
7434 MonoMethodSignature *copy = mono_metadata_signature_dup (sig);
7435 int i;
7436
7437 //printf ("%s\n", mono_signature_full_name (sig));
7438
7439 copy->ret = mini_get_underlying_type (sig->ret);
7440 if (!is_concrete_type (copy->ret))
7441 concrete = FALSE;
7442 for (i = 0; i < sig->param_count; ++i) {
7443 copy->params [i] = mini_get_underlying_type (sig->params [i]);
7444 if (!is_concrete_type (copy->params [i]))
7445 concrete = FALSE;
7446 }
7447 if (concrete) {
7448 copy->has_type_parameters = 0;
7449
7450 if (gsharedvt_in) {
7451 wrapper = mini_get_gsharedvt_in_sig_wrapper (copy);
7452 add_extra_method (acfg, wrapper);
7453 }
7454
7455 if (gsharedvt_out) {
7456 wrapper = mini_get_gsharedvt_out_sig_wrapper (copy);
7457 add_extra_method (acfg, wrapper);
7458 }
7459
7460 //printf ("%s\n", mono_method_full_name (wrapper, 1));
7461 }
7462 }
7463 }
7464
7465 /*
7466 * compile_method:
7467 *
7468 * AOT compile a given method.
7469 * This function might be called by multiple threads, so it must be thread-safe.
7470 */
7471 static void
7472 compile_method (MonoAotCompile *acfg, MonoMethod *method)
7473 {
7474 MonoCompile *cfg;
7475 MonoJumpInfo *patch_info;
7476 gboolean skip;
7477 int index, depth;
7478 MonoMethod *wrapped;
7479 GTimer *jit_timer;
7480 JitFlags flags;
7481
7482 if (acfg->aot_opts.metadata_only)
7483 return;
7484
7485 mono_acfg_lock (acfg);
7486 index = get_method_index (acfg, method);
7487 mono_acfg_unlock (acfg);
7488
7489 /* fixme: maybe we can also precompile wrapper methods */
7490 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
7491 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
7492 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
7493 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
7494 return;
7495 }
7496
7497 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
7498 return;
7499
7500 wrapped = mono_marshal_method_from_wrapper (method);
7501 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
7502 // FIXME: The wrapper should be generic too, but it is not
7503 return;
7504
7505 if (method->wrapper_type == MONO_WRAPPER_COMINTEROP)
7506 return;
7507
7508 InterlockedIncrement (&acfg->stats.mcount);
7509
7510 #if 0
7511 if (method->is_generic || mono_class_is_gtd (method->klass)) {
7512 InterlockedIncrement (&acfg->stats.genericcount);
7513 return;
7514 }
7515 #endif
7516
7517 //acfg->aot_opts.print_skipped_methods = TRUE;
7518
7519 /*
7520 * Since these methods are the only ones which are compiled with
7521 * AOT support, and they are not used by runtime startup/shutdown code,
7522 * the runtime will not see AOT methods during AOT compilation,so it
7523 * does not need to support them by creating a fake GOT etc.
7524 */
7525 flags = JIT_FLAG_AOT;
7526 if (mono_aot_mode_is_full (&acfg->aot_opts))
7527 flags = (JitFlags)(flags | JIT_FLAG_FULL_AOT);
7528 if (acfg->llvm)
7529 flags = (JitFlags)(flags | JIT_FLAG_LLVM);
7530 if (acfg->aot_opts.llvm_only)
7531 flags = (JitFlags)(flags | JIT_FLAG_LLVM_ONLY | JIT_FLAG_EXPLICIT_NULL_CHECKS);
7532 if (acfg->aot_opts.no_direct_calls)
7533 flags = (JitFlags)(flags | JIT_FLAG_NO_DIRECT_ICALLS);
7534 if (acfg->aot_opts.direct_pinvoke)
7535 flags = (JitFlags)(flags | JIT_FLAG_DIRECT_PINVOKE);
7536
7537 jit_timer = mono_time_track_start ();
7538 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), flags, 0, index);
7539 mono_time_track_end (&mono_jit_stats.jit_time, jit_timer);
7540
7541 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
7542 if (acfg->aot_opts.print_skipped_methods)
7543 printf ("Skip (gshared failure): %s (%s)\n", mono_method_get_full_name (method), cfg->exception_message);
7544 InterlockedIncrement (&acfg->stats.genericcount);
7545 return;
7546 }
7547 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
7548 if (acfg->aot_opts.print_skipped_methods)
7549 printf ("Skip (JIT failure): %s\n", mono_method_get_full_name (method));
7550 /* Let the exception happen at runtime */
7551 return;
7552 }
7553
7554 if (cfg->disable_aot) {
7555 if (acfg->aot_opts.print_skipped_methods)
7556 printf ("Skip (disabled): %s\n", mono_method_get_full_name (method));
7557 InterlockedIncrement (&acfg->stats.ocount);
7558 return;
7559 }
7560 cfg->method_index = index;
7561
7562 /* Nullify patches which need no aot processing */
7563 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
7564 switch (patch_info->type) {
7565 case MONO_PATCH_INFO_LABEL:
7566 case MONO_PATCH_INFO_BB:
7567 patch_info->type = MONO_PATCH_INFO_NONE;
7568 break;
7569 default:
7570 break;
7571 }
7572 }
7573
7574 /* Collect method->token associations from the cfg */
7575 mono_acfg_lock (acfg);
7576 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
7577 mono_acfg_unlock (acfg);
7578 g_hash_table_destroy (cfg->token_info_hash);
7579 cfg->token_info_hash = NULL;
7580
7581 /*
7582 * Check for absolute addresses.
7583 */
7584 skip = FALSE;
7585 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
7586 switch (patch_info->type) {
7587 case MONO_PATCH_INFO_ABS:
7588 /* unable to handle this */
7589 skip = TRUE;
7590 break;
7591 default:
7592 break;
7593 }
7594 }
7595
7596 if (skip) {
7597 if (acfg->aot_opts.print_skipped_methods)
7598 printf ("Skip (abs call): %s\n", mono_method_get_full_name (method));
7599 InterlockedIncrement (&acfg->stats.abscount);
7600 return;
7601 }
7602
7603 /* Lock for the rest of the code */
7604 mono_acfg_lock (acfg);
7605
7606 if (cfg->gsharedvt)
7607 acfg->stats.method_categories [METHOD_CAT_GSHAREDVT] ++;
7608 else if (cfg->gshared)
7609 acfg->stats.method_categories [METHOD_CAT_INST] ++;
7610 else if (cfg->method->wrapper_type)
7611 acfg->stats.method_categories [METHOD_CAT_WRAPPER] ++;
7612 else
7613 acfg->stats.method_categories [METHOD_CAT_NORMAL] ++;
7614
7615 /*
7616 * Check for methods/klasses we can't encode.
7617 */
7618 skip = FALSE;
7619 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
7620 if (!can_encode_patch (acfg, patch_info))
7621 skip = TRUE;
7622 }
7623
7624 if (skip) {
7625 if (acfg->aot_opts.print_skipped_methods)
7626 printf ("Skip (patches): %s\n", mono_method_get_full_name (method));
7627 acfg->stats.ocount++;
7628 mono_acfg_unlock (acfg);
7629 return;
7630 }
7631
7632 if (!cfg->compile_llvm)
7633 acfg->has_jitted_code = TRUE;
7634
7635 if (method->is_inflated && acfg->aot_opts.log_instances) {
7636 if (acfg->instances_logfile)
7637 fprintf (acfg->instances_logfile, "%s ### %d\n", mono_method_get_full_name (method), cfg->code_size);
7638 else
7639 printf ("%s ### %d\n", mono_method_get_full_name (method), cfg->code_size);
7640 }
7641
7642 /* Adds generic instances referenced by this method */
7643 /*
7644 * The depth is used to avoid infinite loops when generic virtual recursion is
7645 * encountered.
7646 */
7647 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
7648 if (!acfg->aot_opts.no_instances && depth < 32 && mono_aot_mode_is_full (&acfg->aot_opts)) {
7649 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
7650 switch (patch_info->type) {
7651 case MONO_PATCH_INFO_RGCTX_FETCH:
7652 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX:
7653 case MONO_PATCH_INFO_METHOD: {
7654 MonoMethod *m = NULL;
7655
7656 if (patch_info->type == MONO_PATCH_INFO_RGCTX_FETCH || patch_info->type == MONO_PATCH_INFO_RGCTX_SLOT_INDEX) {
7657 MonoJumpInfoRgctxEntry *e = patch_info->data.rgctx_entry;
7658
7659 if (e->info_type == MONO_RGCTX_INFO_GENERIC_METHOD_CODE)
7660 m = e->data->data.method;
7661 } else {
7662 m = patch_info->data.method;
7663 }
7664
7665 if (!m)
7666 break;
7667 if (m->is_inflated && mono_aot_mode_is_full (&acfg->aot_opts)) {
7668 if (!(mono_class_generic_sharing_enabled (m->klass) &&
7669 mono_method_is_generic_sharable_full (m, FALSE, FALSE, FALSE)) &&
7670 (!method_has_type_vars (m) || mono_method_is_generic_sharable_full (m, TRUE, TRUE, FALSE))) {
7671 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
7672 if (mono_aot_mode_is_full (&acfg->aot_opts) && !method_has_type_vars (m))
7673 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
7674 } else {
7675 add_extra_method_with_depth (acfg, m, depth + 1);
7676 add_types_from_method_header (acfg, m);
7677 }
7678 }
7679 add_generic_class_with_depth (acfg, m->klass, depth + 5, "method");
7680 }
7681 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED) {
7682 WrapperInfo *info = mono_marshal_get_wrapper_info (m);
7683
7684 if (info && info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR)
7685 add_extra_method_with_depth (acfg, m, depth + 1);
7686 }
7687 break;
7688 }
7689 case MONO_PATCH_INFO_VTABLE: {
7690 MonoClass *klass = patch_info->data.klass;
7691
7692 if (mono_class_is_ginst (klass) && !mini_class_is_generic_sharable (klass))
7693 add_generic_class_with_depth (acfg, klass, depth + 5, "vtable");
7694 break;
7695 }
7696 case MONO_PATCH_INFO_SFLDA: {
7697 MonoClass *klass = patch_info->data.field->parent;
7698
7699 /* The .cctor needs to run at runtime. */
7700 if (mono_class_is_ginst (klass) && !mono_generic_context_is_sharable_full (&mono_class_get_generic_class (klass)->context, FALSE, FALSE) && mono_class_get_cctor (klass))
7701 add_extra_method_with_depth (acfg, mono_class_get_cctor (klass), depth + 1);
7702 break;
7703 }
7704 default:
7705 break;
7706 }
7707 }
7708 }
7709
7710 /* Determine whenever the method has GOT slots */
7711 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
7712 switch (patch_info->type) {
7713 case MONO_PATCH_INFO_GOT_OFFSET:
7714 case MONO_PATCH_INFO_NONE:
7715 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
7716 case MONO_PATCH_INFO_GC_NURSERY_START:
7717 case MONO_PATCH_INFO_GC_NURSERY_BITS:
7718 break;
7719 case MONO_PATCH_INFO_IMAGE:
7720 /* The assembly is stored in GOT slot 0 */
7721 if (patch_info->data.image != acfg->image)
7722 cfg->has_got_slots = TRUE;
7723 break;
7724 default:
7725 if (!is_plt_patch (patch_info) || (cfg->compile_llvm && acfg->aot_opts.llvm_only))
7726 cfg->has_got_slots = TRUE;
7727 break;
7728 }
7729 }
7730
7731 if (!cfg->has_got_slots)
7732 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
7733
7734 /* Add gsharedvt wrappers for signatures used by the method */
7735 if (acfg->aot_opts.llvm_only) {
7736 GSList *l;
7737
7738 if (!cfg->method->wrapper_type || cfg->method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE)
7739 /* These only need out wrappers */
7740 add_gsharedvt_wrappers (acfg, mono_method_signature (cfg->method), FALSE, TRUE);
7741
7742 for (l = cfg->signatures; l; l = l->next) {
7743 MonoMethodSignature *sig = mono_metadata_signature_dup ((MonoMethodSignature*)l->data);
7744
7745 /* These only need in wrappers */
7746 add_gsharedvt_wrappers (acfg, sig, TRUE, FALSE);
7747 }
7748 }
7749
7750 /*
7751 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
7752 */
7753 /* Make a copy of the patch info which is in the mempool */
7754 {
7755 MonoJumpInfo *patches = NULL, *patches_end = NULL;
7756
7757 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
7758 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
7759
7760 if (!patches)
7761 patches = new_patch_info;
7762 else
7763 patches_end->next = new_patch_info;
7764 patches_end = new_patch_info;
7765 }
7766 cfg->patch_info = patches;
7767 }
7768 /* Make a copy of the unwind info */
7769 {
7770 GSList *l, *unwind_ops;
7771 MonoUnwindOp *op;
7772
7773 unwind_ops = NULL;
7774 for (l = cfg->unwind_ops; l; l = l->next) {
7775 op = (MonoUnwindOp *)mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
7776 memcpy (op, l->data, sizeof (MonoUnwindOp));
7777 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
7778 }
7779 cfg->unwind_ops = g_slist_reverse (unwind_ops);
7780 }
7781 /* Make a copy of the argument/local info */
7782 {
7783 MonoError error;
7784 MonoInst **args, **locals;
7785 MonoMethodSignature *sig;
7786 MonoMethodHeader *header;
7787 int i;
7788
7789 sig = mono_method_signature (method);
7790 args = (MonoInst **)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
7791 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
7792 args [i] = (MonoInst *)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
7793 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
7794 }
7795 cfg->args = args;
7796
7797 header = mono_method_get_header_checked (method, &error);
7798 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
7799 locals = (MonoInst **)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
7800 for (i = 0; i < header->num_locals; ++i) {
7801 locals [i] = (MonoInst *)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
7802 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
7803 }
7804 mono_metadata_free_mh (header);
7805 cfg->locals = locals;
7806 }
7807
7808 /* Free some fields used by cfg to conserve memory */
7809 mono_empty_compile (cfg);
7810
7811 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
7812
7813 while (index >= acfg->cfgs_size) {
7814 MonoCompile **new_cfgs;
7815 int new_size;
7816
7817 new_size = acfg->cfgs_size * 2;
7818 new_cfgs = g_new0 (MonoCompile*, new_size);
7819 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
7820 g_free (acfg->cfgs);
7821 acfg->cfgs = new_cfgs;
7822 acfg->cfgs_size = new_size;
7823 }
7824 acfg->cfgs [index] = cfg;
7825
7826 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
7827
7828 mono_update_jit_stats (cfg);
7829
7830 /*
7831 if (cfg->orig_method->wrapper_type)
7832 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
7833 */
7834
7835 mono_acfg_unlock (acfg);
7836
7837 InterlockedIncrement (&acfg->stats.ccount);
7838 }
7839
7840 static mono_thread_start_return_t WINAPI
7841 compile_thread_main (gpointer user_data)
7842 {
7843 MonoDomain *domain = ((MonoDomain **)user_data) [0];
7844 MonoAotCompile *acfg = ((MonoAotCompile **)user_data) [1];
7845 GPtrArray *methods = ((GPtrArray **)user_data) [2];
7846 int i;
7847
7848 MonoError error;
7849 MonoThread *thread = mono_thread_attach (domain);
7850 mono_thread_set_name_internal (thread->internal_thread, mono_string_new (mono_get_root_domain (), "AOT compiler"), TRUE, &error);
7851 mono_error_assert_ok (&error);
7852
7853 for (i = 0; i < methods->len; ++i)
7854 compile_method (acfg, (MonoMethod *)g_ptr_array_index (methods, i));
7855
7856 return 0;
7857 }
7858
7859 static void
7860 load_profile_files (MonoAotCompile *acfg)
7861 {
7862 FILE *infile;
7863 char *tmp;
7864 int file_index, res, method_index, i;
7865 char ver [256];
7866 guint32 token;
7867 GList *unordered, *l;
7868 gboolean found;
7869
7870 file_index = 0;
7871 while (TRUE) {
7872 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%d", g_get_home_dir (), acfg->image->assembly_name, file_index);
7873
7874 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
7875 g_free (tmp);
7876 break;
7877 }
7878
7879 infile = fopen (tmp, "r");
7880 g_assert (infile);
7881
7882 printf ("Using profile data file '%s'\n", tmp);
7883 g_free (tmp);
7884
7885 file_index ++;
7886
7887 res = fscanf (infile, "%32s\n", ver);
7888 if ((res != 1) || strcmp (ver, "#VER:2") != 0) {
7889 printf ("Profile file has wrong version or invalid.\n");
7890 fclose (infile);
7891 continue;
7892 }
7893
7894 while (TRUE) {
7895 char name [1024];
7896 MonoMethodDesc *desc;
7897 MonoMethod *method;
7898
7899 if (fgets (name, 1023, infile) == NULL)
7900 break;
7901
7902 /* Kill the newline */
7903 if (strlen (name) > 0)
7904 name [strlen (name) - 1] = '\0';
7905
7906 desc = mono_method_desc_new (name, TRUE);
7907
7908 method = mono_method_desc_search_in_image (desc, acfg->image);
7909
7910 if (method && mono_method_get_token (method)) {
7911 token = mono_method_get_token (method);
7912 method_index = mono_metadata_token_index (token) - 1;
7913
7914 found = FALSE;
7915 for (i = 0; i < acfg->method_order->len; ++i) {
7916 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
7917 found = TRUE;
7918 break;
7919 }
7920 }
7921 if (!found)
7922 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (method_index));
7923 } else {
7924 //printf ("No method found matching '%s'.\n", name);
7925 }
7926 }
7927 fclose (infile);
7928 }
7929
7930 /* Add missing methods */
7931 unordered = NULL;
7932 for (method_index = 0; method_index < acfg->image->tables [MONO_TABLE_METHOD].rows; ++method_index) {
7933 found = FALSE;
7934 for (i = 0; i < acfg->method_order->len; ++i) {
7935 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
7936 found = TRUE;
7937 break;
7938 }
7939 }
7940 if (!found)
7941 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (method_index));
7942 }
7943 unordered = g_list_reverse (unordered);
7944 for (l = unordered; l; l = l->next)
7945 g_ptr_array_add (acfg->method_order, l->data);
7946 }
7947
7948 /* Used by the LLVM backend */
7949 guint32
7950 mono_aot_get_got_offset (MonoJumpInfo *ji)
7951 {
7952 return get_got_offset (llvm_acfg, TRUE, ji);
7953 }
7954
7955 /*
7956 * mono_aot_is_shared_got_offset:
7957 *
7958 * Return whenever OFFSET refers to a GOT slot which is preinitialized
7959 * when the AOT image is loaded.
7960 */
7961 gboolean
7962 mono_aot_is_shared_got_offset (int offset)
7963 {
7964 return offset < llvm_acfg->nshared_got_entries;
7965 }
7966
7967 char*
7968 mono_aot_get_method_name (MonoCompile *cfg)
7969 {
7970 if (llvm_acfg->aot_opts.static_link)
7971 /* Include the assembly name too to avoid duplicate symbol errors */
7972 return g_strdup_printf ("%s_%s", llvm_acfg->assembly_name_sym, get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash));
7973 else
7974 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
7975 }
7976
7977 /*
7978 * mono_aot_is_linkonce_method:
7979 *
7980 * Return whenever METHOD should be emitted with linkonce linkage,
7981 * eliminating duplicate copies when compiling in static mode.
7982 */
7983 gboolean
7984 mono_aot_is_linkonce_method (MonoMethod *method)
7985 {
7986 return FALSE;
7987 #if 0
7988 WrapperInfo *info;
7989
7990 // FIXME: Add more cases
7991 if (method->wrapper_type != MONO_WRAPPER_UNKNOWN)
7992 return FALSE;
7993 info = mono_marshal_get_wrapper_info (method);
7994 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG)))
7995 return TRUE;
7996 return FALSE;
7997 #endif
7998 }
7999
8000 static gboolean
8001 append_mangled_type (GString *s, MonoType *t)
8002 {
8003 if (t->byref)
8004 g_string_append_printf (s, "b");
8005 switch (t->type) {
8006 case MONO_TYPE_VOID:
8007 g_string_append_printf (s, "void_");
8008 break;
8009 case MONO_TYPE_I1:
8010 g_string_append_printf (s, "i1");
8011 break;
8012 case MONO_TYPE_U1:
8013 g_string_append_printf (s, "u1");
8014 break;
8015 case MONO_TYPE_I2:
8016 g_string_append_printf (s, "i2");
8017 break;
8018 case MONO_TYPE_U2:
8019 g_string_append_printf (s, "u2");
8020 break;
8021 case MONO_TYPE_I4:
8022 g_string_append_printf (s, "i4");
8023 break;
8024 case MONO_TYPE_U4:
8025 g_string_append_printf (s, "u4");
8026 break;
8027 case MONO_TYPE_I8:
8028 g_string_append_printf (s, "i8");
8029 break;
8030 case MONO_TYPE_U8:
8031 g_string_append_printf (s, "u8");
8032 break;
8033 case MONO_TYPE_I:
8034 g_string_append_printf (s, "ii");
8035 break;
8036 case MONO_TYPE_U:
8037 g_string_append_printf (s, "ui");
8038 break;
8039 case MONO_TYPE_R4:
8040 g_string_append_printf (s, "fl");
8041 break;
8042 case MONO_TYPE_R8:
8043 g_string_append_printf (s, "do");
8044 break;
8045 default: {
8046 char *fullname = mono_type_full_name (t);
8047 GString *temp;
8048 char *temps;
8049 int i, len;
8050
8051 /*
8052 * Have to create a mangled name which is:
8053 * - a valid symbol
8054 * - unique
8055 */
8056 temp = g_string_new ("");
8057 len = strlen (fullname);
8058 for (i = 0; i < len; ++i) {
8059 char c = fullname [i];
8060 if (isalnum (c)) {
8061 g_string_append_c (temp, c);
8062 } else if (c == '_') {
8063 g_string_append_c (temp, '_');
8064 g_string_append_c (temp, '_');
8065 } else {
8066 g_string_append_c (temp, '_');
8067 g_string_append_printf (temp, "%x", (int)c);
8068 }
8069 }
8070 temps = g_string_free (temp, FALSE);
8071 /* Include the length to avoid different length type names aliasing each other */
8072 g_string_append_printf (s, "cl%x_%s_", strlen (temps), temps);
8073 g_free (temps);
8074 return TRUE;
8075 }
8076 }
8077 return TRUE;
8078 }
8079
8080 static gboolean
8081 append_mangled_signature (GString *s, MonoMethodSignature *sig)
8082 {
8083 int i;
8084 gboolean supported;
8085
8086 supported = append_mangled_type (s, sig->ret);
8087 if (!supported)
8088 return FALSE;
8089 if (sig->hasthis)
8090 g_string_append_printf (s, "this_");
8091 for (i = 0; i < sig->param_count; ++i) {
8092 supported = append_mangled_type (s, sig->params [i]);
8093 if (!supported)
8094 return FALSE;
8095 }
8096
8097 return TRUE;
8098 }
8099
8100 /*
8101 * mono_aot_get_mangled_method_name:
8102 *
8103 * Return a unique mangled name for METHOD, or NULL.
8104 */
8105 char*
8106 mono_aot_get_mangled_method_name (MonoMethod *method)
8107 {
8108 WrapperInfo *info;
8109 GString *s;
8110 gboolean supported;
8111
8112 // FIXME: Add more cases
8113 if (method->wrapper_type != MONO_WRAPPER_UNKNOWN)
8114 return NULL;
8115 info = mono_marshal_get_wrapper_info (method);
8116 if (!(info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG)))
8117 return NULL;
8118
8119 s = g_string_new ("");
8120
8121 g_string_append_printf (s, "aot_method_w_");
8122
8123 switch (info->subtype) {
8124 case WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG:
8125 g_string_append_printf (s, "gsharedvt_in_");
8126 break;
8127 case WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG:
8128 g_string_append_printf (s, "gsharedvt_out_");
8129 break;
8130 default:
8131 g_assert_not_reached ();
8132 break;
8133 }
8134
8135 supported = append_mangled_signature (s, info->d.gsharedvt.sig);
8136 if (!supported) {
8137 g_string_free (s, TRUE);
8138 return NULL;
8139 }
8140
8141 return g_string_free (s, FALSE);
8142 }
8143
8144 gboolean
8145 mono_aot_is_direct_callable (MonoJumpInfo *patch_info)
8146 {
8147 return is_direct_callable (llvm_acfg, NULL, patch_info);
8148 }
8149
8150 void
8151 mono_aot_mark_unused_llvm_plt_entry (MonoJumpInfo *patch_info)
8152 {
8153 MonoPltEntry *plt_entry;
8154
8155 plt_entry = get_plt_entry (llvm_acfg, patch_info);
8156 plt_entry->llvm_used = FALSE;
8157 }
8158
8159 char*
8160 mono_aot_get_direct_call_symbol (MonoJumpInfoType type, gconstpointer data)
8161 {
8162 const char *sym = NULL;
8163
8164 if (llvm_acfg->aot_opts.direct_icalls) {
8165 if (type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
8166 /* Call to a C function implementing a jit icall */
8167 sym = mono_lookup_jit_icall_symbol ((const char *)data);
8168 } else if (type == MONO_PATCH_INFO_ICALL_ADDR_CALL) {
8169 MonoMethod *method = (MonoMethod *)data;
8170 if (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8171 sym = mono_lookup_icall_symbol (method);
8172 else if (llvm_acfg->aot_opts.direct_pinvoke)
8173 sym = get_pinvoke_import (llvm_acfg, method);
8174 }
8175 if (sym)
8176 return g_strdup (sym);
8177 }
8178 return NULL;
8179 }
8180
8181 char*
8182 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
8183 {
8184 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
8185 MonoPltEntry *plt_entry;
8186 const char *sym = NULL;
8187
8188 ji->type = type;
8189 ji->data.target = data;
8190
8191 if (!can_encode_patch (llvm_acfg, ji))
8192 return NULL;
8193
8194 if (llvm_acfg->aot_opts.direct_icalls) {
8195 if (type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
8196 /* Call to a C function implementing a jit icall */
8197 sym = mono_lookup_jit_icall_symbol ((const char *)data);
8198 } else if (type == MONO_PATCH_INFO_ICALL_ADDR_CALL) {
8199 MonoMethod *method = (MonoMethod *)data;
8200 if (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8201 sym = mono_lookup_icall_symbol (method);
8202 }
8203 if (sym)
8204 return g_strdup (sym);
8205 }
8206
8207 plt_entry = get_plt_entry (llvm_acfg, ji);
8208 plt_entry->llvm_used = TRUE;
8209
8210 #if defined(TARGET_MACH)
8211 return g_strdup_printf (plt_entry->llvm_symbol + strlen (llvm_acfg->llvm_label_prefix));
8212 #else
8213 return g_strdup_printf (plt_entry->llvm_symbol);
8214 #endif
8215 }
8216
8217 int
8218 mono_aot_get_method_index (MonoMethod *method)
8219 {
8220 g_assert (llvm_acfg);
8221 return get_method_index (llvm_acfg, method);
8222 }
8223
8224 MonoJumpInfo*
8225 mono_aot_patch_info_dup (MonoJumpInfo* ji)
8226 {
8227 MonoJumpInfo *res;
8228
8229 mono_acfg_lock (llvm_acfg);
8230 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
8231 mono_acfg_unlock (llvm_acfg);
8232
8233 return res;
8234 }
8235
8236 static int
8237 execute_system (const char * command)
8238 {
8239 int status = 0;
8240
8241 #if HOST_WIN32
8242 // We need an extra set of quotes around the whole command to properly handle commands
8243 // with spaces since internally the command is called through "cmd /c.
8244 char * quoted_command = g_strdup_printf ("\"%s\"", command);
8245
8246 int size = MultiByteToWideChar (CP_UTF8, 0 , quoted_command , -1, NULL , 0);
8247 wchar_t* wstr = g_malloc (sizeof (wchar_t) * size);
8248 MultiByteToWideChar (CP_UTF8, 0, quoted_command, -1, wstr , size);
8249 status = _wsystem (wstr);
8250 g_free (wstr);
8251
8252 g_free (quoted_command);
8253 #elif defined (HAVE_SYSTEM)
8254 status = system (command);
8255 #else
8256 g_assert_not_reached ();
8257 #endif
8258
8259 return status;
8260 }
8261
8262 #ifdef ENABLE_LLVM
8263
8264 /*
8265 * emit_llvm_file:
8266 *
8267 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
8268 * tools.
8269 */
8270 static gboolean
8271 emit_llvm_file (MonoAotCompile *acfg)
8272 {
8273 char *command, *opts, *tempbc, *optbc, *output_fname;
8274
8275 if (acfg->aot_opts.llvm_only && acfg->aot_opts.asm_only) {
8276 tempbc = g_strdup_printf ("%s.bc", acfg->tmpbasename);
8277 optbc = g_strdup (acfg->aot_opts.llvm_outfile);
8278 } else {
8279 tempbc = g_strdup_printf ("%s.bc", acfg->tmpbasename);
8280 optbc = g_strdup_printf ("%s.opt.bc", acfg->tmpbasename);
8281 }
8282
8283 mono_llvm_emit_aot_module (tempbc, g_path_get_basename (acfg->image->name));
8284
8285 /*
8286 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
8287 * a lot of time, and doesn't seem to save much space.
8288 * The following optimizations cannot be enabled:
8289 * - 'tailcallelim'
8290 * - 'jump-threading' changes our blockaddress references to int constants.
8291 * - 'basiccg' fails because it contains:
8292 * if (CS && !isa<IntrinsicInst>(II)) {
8293 * and isa<IntrinsicInst> is false for invokes to intrinsics (iltests.exe).
8294 * - 'prune-eh' and 'functionattrs' depend on 'basiccg'.
8295 * The opt list below was produced by taking the output of:
8296 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
8297 * then removing tailcallelim + the global opts.
8298 * strip-dead-prototypes deletes unused intrinsics definitions.
8299 */
8300 /* The dse pass is disabled because of #13734 and #17616 */
8301 /*
8302 * The dse bug is in DeadStoreElimination.cpp:isOverwrite ():
8303 * // If we have no DataLayout information around, then the size of the store
8304 * // is inferrable from the pointee type. If they are the same type, then
8305 * // we know that the store is safe.
8306 * if (AA.getDataLayout() == 0 &&
8307 * Later.Ptr->getType() == Earlier.Ptr->getType()) {
8308 * return OverwriteComplete;
8309 * Here, if 'Earlier' refers to a memset, and Later has no size info, it mistakenly thinks the memset is redundant.
8310 */
8311 if (acfg->aot_opts.llvm_only)
8312 // FIXME: This doesn't work yet
8313 opts = g_strdup ("");
8314 else
8315 #if LLVM_API_VERSION > 100
8316 opts = g_strdup ("-O2 -disable-tail-calls");
8317 #else
8318 opts = g_strdup ("-targetlibinfo -no-aa -basicaa -notti -instcombine -simplifycfg -inline-cost -inline -sroa -domtree -early-cse -lazy-value-info -correlated-propagation -simplifycfg -instcombine -simplifycfg -reassociate -domtree -loops -loop-simplify -lcssa -loop-rotate -licm -lcssa -loop-unswitch -instcombine -scalar-evolution -loop-simplify -lcssa -indvars -loop-idiom -loop-deletion -loop-unroll -memdep -gvn -memdep -memcpyopt -sccp -instcombine -lazy-value-info -correlated-propagation -domtree -memdep -adce -simplifycfg -instcombine -strip-dead-prototypes -domtree -verify");
8319 #endif
8320 command = g_strdup_printf ("\"%sopt\" -f %s -o \"%s\" \"%s\"", acfg->aot_opts.llvm_path, opts, optbc, tempbc);
8321 aot_printf (acfg, "Executing opt: %s\n", command);
8322 if (execute_system (command) != 0)
8323 return FALSE;
8324 g_free (opts);
8325
8326 if (acfg->aot_opts.llvm_only && acfg->aot_opts.asm_only)
8327 /* Nothing else to do */
8328 return TRUE;
8329
8330 if (acfg->aot_opts.llvm_only) {
8331 /* Use the stock clang from xcode */
8332 // FIXME: arch
8333 command = g_strdup_printf ("clang++ -fexceptions -march=x86-64 -fpic -msse -msse2 -msse3 -msse4 -O2 -fno-optimize-sibling-calls -Wno-override-module -c -o \"%s\" \"%s.opt.bc\"", acfg->llvm_ofile, acfg->tmpbasename);
8334
8335 aot_printf (acfg, "Executing clang: %s\n", command);
8336 if (execute_system (command) != 0)
8337 return FALSE;
8338 return TRUE;
8339 }
8340
8341 if (!acfg->llc_args)
8342 acfg->llc_args = g_string_new ("");
8343
8344 /* Verbose asm slows down llc greatly */
8345 g_string_append (acfg->llc_args, " -asm-verbose=false");
8346
8347 if (acfg->aot_opts.mtriple)
8348 g_string_append_printf (acfg->llc_args, " -mtriple=%s", acfg->aot_opts.mtriple);
8349
8350 g_string_append (acfg->llc_args, " -disable-gnu-eh-frame -enable-mono-eh-frame");
8351
8352 g_string_append_printf (acfg->llc_args, " -mono-eh-frame-symbol=%s%s", acfg->user_symbol_prefix, acfg->llvm_eh_frame_symbol);
8353
8354 #if LLVM_API_VERSION > 100
8355 g_string_append_printf (acfg->llc_args, " -disable-tail-calls");
8356 #endif
8357
8358 #if defined(TARGET_MACH) && defined(TARGET_ARM)
8359 /* ios requires PIC code now */
8360 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
8361 #else
8362 if (llvm_acfg->aot_opts.static_link)
8363 g_string_append_printf (acfg->llc_args, " -relocation-model=static");
8364 else
8365 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
8366 #endif
8367
8368 if (acfg->llvm_owriter) {
8369 /* Emit an object file directly */
8370 output_fname = g_strdup_printf ("%s", acfg->llvm_ofile);
8371 g_string_append_printf (acfg->llc_args, " -filetype=obj");
8372 } else {
8373 output_fname = g_strdup_printf ("%s", acfg->llvm_sfile);
8374 }
8375 command = g_strdup_printf ("\"%sllc\" %s -o \"%s\" \"%s.opt.bc\"", acfg->aot_opts.llvm_path, acfg->llc_args->str, output_fname, acfg->tmpbasename);
8376 g_free (output_fname);
8377
8378 aot_printf (acfg, "Executing llc: %s\n", command);
8379
8380 if (execute_system (command) != 0)
8381 return FALSE;
8382 return TRUE;
8383 }
8384 #endif
8385
8386 static void
8387 emit_code (MonoAotCompile *acfg)
8388 {
8389 int oindex, i, prev_index;
8390 gboolean saved_unbox_info = FALSE;
8391 char symbol [MAX_SYMBOL_SIZE];
8392
8393 if (acfg->aot_opts.llvm_only)
8394 return;
8395
8396 #if defined(TARGET_POWERPC64)
8397 sprintf (symbol, ".Lgot_addr");
8398 emit_section_change (acfg, ".text", 0);
8399 emit_alignment (acfg, 8);
8400 emit_label (acfg, symbol);
8401 emit_pointer (acfg, acfg->got_symbol);
8402 #endif
8403
8404 /*
8405 * This global symbol is used to compute the address of each method using the
8406 * code_offsets array. It is also used to compute the memory ranges occupied by
8407 * AOT code, so it must be equal to the address of the first emitted method.
8408 */
8409 emit_section_change (acfg, ".text", 0);
8410 emit_alignment_code (acfg, 8);
8411 emit_info_symbol (acfg, "jit_code_start");
8412
8413 /*
8414 * Emit some padding so the local symbol for the first method doesn't have the
8415 * same address as 'methods'.
8416 */
8417 emit_padding (acfg, 16);
8418
8419 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
8420 MonoCompile *cfg;
8421 MonoMethod *method;
8422
8423 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
8424
8425 cfg = acfg->cfgs [i];
8426
8427 if (!cfg)
8428 continue;
8429
8430 method = cfg->orig_method;
8431
8432 /* Emit unbox trampoline */
8433 if (mono_aot_mode_is_full (&acfg->aot_opts) && cfg->orig_method->klass->valuetype) {
8434 sprintf (symbol, "ut_%d", get_method_index (acfg, method));
8435
8436 emit_section_change (acfg, ".text", 0);
8437
8438 if (acfg->thumb_mixed && cfg->compile_llvm) {
8439 emit_set_thumb_mode (acfg);
8440 fprintf (acfg->fp, "\n.thumb_func\n");
8441 }
8442
8443 emit_label (acfg, symbol);
8444
8445 arch_emit_unbox_trampoline (acfg, cfg, cfg->orig_method, cfg->asm_symbol);
8446
8447 if (acfg->thumb_mixed && cfg->compile_llvm)
8448 emit_set_arm_mode (acfg);
8449
8450 if (!saved_unbox_info) {
8451 char user_symbol [128];
8452 GSList *unwind_ops;
8453 sprintf (user_symbol, "%sunbox_trampoline_p", acfg->user_symbol_prefix);
8454
8455 emit_label (acfg, "ut_end");
8456
8457 unwind_ops = mono_unwind_get_cie_program ();
8458 save_unwind_info (acfg, user_symbol, unwind_ops);
8459 mono_free_unwind_info (unwind_ops);
8460
8461 /* Save the unbox trampoline size */
8462 emit_symbol_diff (acfg, "ut_end", symbol, 0);
8463
8464 saved_unbox_info = TRUE;
8465 }
8466 }
8467
8468 if (cfg->compile_llvm)
8469 acfg->stats.llvm_count ++;
8470 else
8471 emit_method_code (acfg, cfg);
8472 }
8473
8474 emit_section_change (acfg, ".text", 0);
8475 emit_alignment_code (acfg, 8);
8476 emit_info_symbol (acfg, "jit_code_end");
8477
8478 /* To distinguish it from the next symbol */
8479 emit_padding (acfg, 4);
8480
8481 /*
8482 * Add .no_dead_strip directives for all LLVM methods to prevent the OSX linker
8483 * from optimizing them away, since it doesn't see that code_offsets references them.
8484 * JITted methods don't need this since they are referenced using assembler local
8485 * symbols.
8486 * FIXME: This is why write-symbols doesn't work on OSX ?
8487 */
8488 if (acfg->llvm && acfg->need_no_dead_strip) {
8489 fprintf (acfg->fp, "\n");
8490 for (i = 0; i < acfg->nmethods; ++i) {
8491 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm)
8492 fprintf (acfg->fp, ".no_dead_strip %s\n", acfg->cfgs [i]->asm_symbol);
8493 }
8494 }
8495
8496 /*
8497 * To work around linker issues, we emit a table of branches, and disassemble them at runtime.
8498 * This is PIE code, and the linker can update it if needed.
8499 */
8500
8501 sprintf (symbol, "method_addresses");
8502 emit_section_change (acfg, ".text", 1);
8503 emit_alignment_code (acfg, 8);
8504 emit_info_symbol (acfg, symbol);
8505 if (acfg->aot_opts.write_symbols)
8506 emit_local_symbol (acfg, symbol, "method_addresses_end", TRUE);
8507 emit_unset_mode (acfg);
8508 if (acfg->need_no_dead_strip)
8509 fprintf (acfg->fp, " .no_dead_strip %s\n", symbol);
8510
8511 for (i = 0; i < acfg->nmethods; ++i) {
8512 #ifdef MONO_ARCH_AOT_SUPPORTED
8513 int call_size;
8514
8515 if (acfg->cfgs [i]) {
8516 arch_emit_direct_call (acfg, acfg->cfgs [i]->asm_symbol, FALSE, acfg->thumb_mixed && acfg->cfgs [i]->compile_llvm, NULL, &call_size);
8517 } else {
8518 arch_emit_direct_call (acfg, symbol, FALSE, FALSE, NULL, &call_size);
8519 }
8520 #endif
8521 }
8522
8523 sprintf (symbol, "method_addresses_end");
8524 emit_label (acfg, symbol);
8525 emit_line (acfg);
8526
8527 /* Emit a sorted table mapping methods to the index of their unbox trampolines */
8528 sprintf (symbol, "unbox_trampolines");
8529 emit_section_change (acfg, RODATA_SECT, 0);
8530 emit_alignment (acfg, 8);
8531 emit_info_symbol (acfg, symbol);
8532
8533 prev_index = -1;
8534 for (i = 0; i < acfg->nmethods; ++i) {
8535 MonoCompile *cfg;
8536 MonoMethod *method;
8537 int index;
8538
8539 cfg = acfg->cfgs [i];
8540 if (!cfg)
8541 continue;
8542
8543 method = cfg->orig_method;
8544
8545 if (mono_aot_mode_is_full (&acfg->aot_opts) && cfg->orig_method->klass->valuetype) {
8546 index = get_method_index (acfg, method);
8547
8548 emit_int32 (acfg, index);
8549 /* Make sure the table is sorted by index */
8550 g_assert (index > prev_index);
8551 prev_index = index;
8552 }
8553 }
8554 sprintf (symbol, "unbox_trampolines_end");
8555 emit_info_symbol (acfg, symbol);
8556 emit_int32 (acfg, 0);
8557
8558 /* Emit a separate table with the trampoline addresses/offsets */
8559 sprintf (symbol, "unbox_trampoline_addresses");
8560 emit_section_change (acfg, ".text", 0);
8561 emit_alignment_code (acfg, 8);
8562 emit_info_symbol (acfg, symbol);
8563
8564 for (i = 0; i < acfg->nmethods; ++i) {
8565 MonoCompile *cfg;
8566 MonoMethod *method;
8567 int index;
8568
8569 cfg = acfg->cfgs [i];
8570 if (!cfg)
8571 continue;
8572
8573 method = cfg->orig_method;
8574
8575 if (mono_aot_mode_is_full (&acfg->aot_opts) && cfg->orig_method->klass->valuetype) {
8576 #ifdef MONO_ARCH_AOT_SUPPORTED
8577 int call_size;
8578
8579 index = get_method_index (acfg, method);
8580 sprintf (symbol, "ut_%d", index);
8581
8582 arch_emit_direct_call (acfg, symbol, FALSE, acfg->thumb_mixed && cfg->compile_llvm, NULL, &call_size);
8583 #endif
8584 }
8585 }
8586 emit_int32 (acfg, 0);
8587 }
8588
8589 static void
8590 emit_info (MonoAotCompile *acfg)
8591 {
8592 int oindex, i;
8593 gint32 *offsets;
8594
8595 offsets = g_new0 (gint32, acfg->nmethods);
8596
8597 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
8598 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
8599
8600 if (acfg->cfgs [i]) {
8601 emit_method_info (acfg, acfg->cfgs [i]);
8602 offsets [i] = acfg->cfgs [i]->method_info_offset;
8603 } else {
8604 offsets [i] = 0;
8605 }
8606 }
8607
8608 acfg->stats.offsets_size += emit_offset_table (acfg, "method_info_offsets", MONO_AOT_TABLE_METHOD_INFO_OFFSETS, acfg->nmethods, 10, offsets);
8609
8610 g_free (offsets);
8611 }
8612
8613 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
8614
8615 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
8616 #define mix(a,b,c) { \
8617 a -= c; a ^= rot(c, 4); c += b; \
8618 b -= a; b ^= rot(a, 6); a += c; \
8619 c -= b; c ^= rot(b, 8); b += a; \
8620 a -= c; a ^= rot(c,16); c += b; \
8621 b -= a; b ^= rot(a,19); a += c; \
8622 c -= b; c ^= rot(b, 4); b += a; \
8623 }
8624 #define final(a,b,c) { \
8625 c ^= b; c -= rot(b,14); \
8626 a ^= c; a -= rot(c,11); \
8627 b ^= a; b -= rot(a,25); \
8628 c ^= b; c -= rot(b,16); \
8629 a ^= c; a -= rot(c,4); \
8630 b ^= a; b -= rot(a,14); \
8631 c ^= b; c -= rot(b,24); \
8632 }
8633
8634 static guint
8635 mono_aot_type_hash (MonoType *t1)
8636 {
8637 guint hash = t1->type;
8638
8639 hash |= t1->byref << 6; /* do not collide with t1->type values */
8640 switch (t1->type) {
8641 case MONO_TYPE_VALUETYPE:
8642 case MONO_TYPE_CLASS:
8643 case MONO_TYPE_SZARRAY:
8644 /* check if the distribution is good enough */
8645 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
8646 case MONO_TYPE_PTR:
8647 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
8648 case MONO_TYPE_ARRAY:
8649 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
8650 case MONO_TYPE_GENERICINST:
8651 return ((hash << 5) - hash) ^ 0;
8652 default:
8653 return hash;
8654 }
8655 }
8656
8657 /*
8658 * mono_aot_method_hash:
8659 *
8660 * Return a hash code for methods which only depends on metadata.
8661 */
8662 guint32
8663 mono_aot_method_hash (MonoMethod *method)
8664 {
8665 MonoMethodSignature *sig;
8666 MonoClass *klass;
8667 int i, hindex;
8668 int hashes_count;
8669 guint32 *hashes_start, *hashes;
8670 guint32 a, b, c;
8671 MonoGenericInst *class_ginst = NULL;
8672 MonoGenericInst *ginst = NULL;
8673
8674 /* Similar to the hash in mono_method_get_imt_slot () */
8675
8676 sig = mono_method_signature (method);
8677
8678 if (mono_class_is_ginst (method->klass))
8679 class_ginst = mono_class_get_generic_class (method->klass)->context.class_inst;
8680 if (method->is_inflated)
8681 ginst = ((MonoMethodInflated*)method)->context.method_inst;
8682
8683 hashes_count = sig->param_count + 5 + (class_ginst ? class_ginst->type_argc : 0) + (ginst ? ginst->type_argc : 0);
8684 hashes_start = (guint32 *)g_malloc0 (hashes_count * sizeof (guint32));
8685 hashes = hashes_start;
8686
8687 /* Some wrappers are assigned to random classes */
8688 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
8689 klass = method->klass;
8690 else
8691 klass = mono_defaults.object_class;
8692
8693 if (!method->wrapper_type) {
8694 char *full_name;
8695
8696 if (mono_class_is_ginst (klass))
8697 full_name = mono_type_full_name (&mono_class_get_generic_class (klass)->container_class->byval_arg);
8698 else
8699 full_name = mono_type_full_name (&klass->byval_arg);
8700
8701 hashes [0] = mono_metadata_str_hash (full_name);
8702 hashes [1] = 0;
8703 g_free (full_name);
8704 } else {
8705 hashes [0] = mono_metadata_str_hash (klass->name);
8706 hashes [1] = mono_metadata_str_hash (klass->name_space);
8707 }
8708 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
8709 /* The method name includes a stringified pointer */
8710 hashes [2] = 0;
8711 else
8712 hashes [2] = mono_metadata_str_hash (method->name);
8713 hashes [3] = method->wrapper_type;
8714 hashes [4] = mono_aot_type_hash (sig->ret);
8715 hindex = 5;
8716 for (i = 0; i < sig->param_count; i++) {
8717 hashes [hindex ++] = mono_aot_type_hash (sig->params [i]);
8718 }
8719 if (class_ginst) {
8720 for (i = 0; i < class_ginst->type_argc; ++i)
8721 hashes [hindex ++] = mono_aot_type_hash (class_ginst->type_argv [i]);
8722 }
8723 if (ginst) {
8724 for (i = 0; i < ginst->type_argc; ++i)
8725 hashes [hindex ++] = mono_aot_type_hash (ginst->type_argv [i]);
8726 }
8727 g_assert (hindex == hashes_count);
8728
8729 /* Setup internal state */
8730 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
8731
8732 /* Handle most of the hashes */
8733 while (hashes_count > 3) {
8734 a += hashes [0];
8735 b += hashes [1];
8736 c += hashes [2];
8737 mix (a,b,c);
8738 hashes_count -= 3;
8739 hashes += 3;
8740 }
8741
8742 /* Handle the last 3 hashes (all the case statements fall through) */
8743 switch (hashes_count) {
8744 case 3 : c += hashes [2];
8745 case 2 : b += hashes [1];
8746 case 1 : a += hashes [0];
8747 final (a,b,c);
8748 case 0: /* nothing left to add */
8749 break;
8750 }
8751
8752 g_free (hashes_start);
8753
8754 return c;
8755 }
8756 #undef rot
8757 #undef mix
8758 #undef final
8759
8760 /*
8761 * mono_aot_get_array_helper_from_wrapper;
8762 *
8763 * Get the helper method in Array called by an array wrapper method.
8764 */
8765 MonoMethod*
8766 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
8767 {
8768 MonoMethod *m;
8769 const char *prefix;
8770 MonoGenericContext ctx;
8771 MonoType *args [16];
8772 char *mname, *iname, *s, *s2, *helper_name = NULL;
8773
8774 prefix = "System.Collections.Generic";
8775 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
8776 s2 = strstr (s, "`1.");
8777 g_assert (s2);
8778 s2 [0] = '\0';
8779 iname = s;
8780 mname = s2 + 3;
8781
8782 //printf ("X: %s %s\n", iname, mname);
8783
8784 if (!strcmp (iname, "IList"))
8785 helper_name = g_strdup_printf ("InternalArray__%s", mname);
8786 else
8787 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
8788 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
8789 g_assert (m);
8790 g_free (helper_name);
8791 g_free (s);
8792
8793 if (m->is_generic) {
8794 MonoError error;
8795 memset (&ctx, 0, sizeof (ctx));
8796 args [0] = &method->klass->element_class->byval_arg;
8797 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
8798 m = mono_class_inflate_generic_method_checked (m, &ctx, &error);
8799 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8800 }
8801
8802 return m;
8803 }
8804
8805 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
8806
8807 typedef struct HashEntry {
8808 guint32 key, value, index;
8809 struct HashEntry *next;
8810 } HashEntry;
8811
8812 /*
8813 * emit_extra_methods:
8814 *
8815 * Emit methods which are not in the METHOD table, like wrappers.
8816 */
8817 static void
8818 emit_extra_methods (MonoAotCompile *acfg)
8819 {
8820 int i, table_size, buf_size;
8821 guint8 *p, *buf;
8822 guint32 *info_offsets;
8823 guint32 hash;
8824 GPtrArray *table;
8825 HashEntry *entry, *new_entry;
8826 int nmethods, max_chain_length;
8827 int *chain_lengths;
8828
8829 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
8830
8831 /* Emit method info */
8832 nmethods = 0;
8833 for (i = 0; i < acfg->extra_methods->len; ++i) {
8834 MonoMethod *method = (MonoMethod *)g_ptr_array_index (acfg->extra_methods, i);
8835 MonoCompile *cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, method);
8836
8837 if (!cfg)
8838 continue;
8839
8840 buf_size = 10240;
8841 p = buf = (guint8 *)g_malloc (buf_size);
8842
8843 nmethods ++;
8844
8845 method = cfg->method_to_register;
8846
8847 encode_method_ref (acfg, method, p, &p);
8848
8849 g_assert ((p - buf) < buf_size);
8850
8851 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
8852 g_free (buf);
8853 }
8854
8855 /*
8856 * Construct a chained hash table for mapping indexes in extra_method_info to
8857 * method indexes.
8858 */
8859 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
8860 table = g_ptr_array_sized_new (table_size);
8861 for (i = 0; i < table_size; ++i)
8862 g_ptr_array_add (table, NULL);
8863 chain_lengths = g_new0 (int, table_size);
8864 max_chain_length = 0;
8865 for (i = 0; i < acfg->extra_methods->len; ++i) {
8866 MonoMethod *method = (MonoMethod *)g_ptr_array_index (acfg->extra_methods, i);
8867 MonoCompile *cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, method);
8868 guint32 key, value;
8869
8870 if (!cfg)
8871 continue;
8872
8873 key = info_offsets [i];
8874 value = get_method_index (acfg, method);
8875
8876 hash = mono_aot_method_hash (method) % table_size;
8877 //printf ("X: %s %x\n", mono_method_get_full_name (method), mono_aot_method_hash (method));
8878
8879 chain_lengths [hash] ++;
8880 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
8881
8882 new_entry = (HashEntry *)mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
8883 new_entry->key = key;
8884 new_entry->value = value;
8885
8886 entry = (HashEntry *)g_ptr_array_index (table, hash);
8887 if (entry == NULL) {
8888 new_entry->index = hash;
8889 g_ptr_array_index (table, hash) = new_entry;
8890 } else {
8891 while (entry->next)
8892 entry = entry->next;
8893
8894 entry->next = new_entry;
8895 new_entry->index = table->len;
8896 g_ptr_array_add (table, new_entry);
8897 }
8898 }
8899 g_free (chain_lengths);
8900
8901 //printf ("MAX: %d\n", max_chain_length);
8902
8903 buf_size = table->len * 12 + 4;
8904 p = buf = (guint8 *)g_malloc (buf_size);
8905 encode_int (table_size, p, &p);
8906
8907 for (i = 0; i < table->len; ++i) {
8908 HashEntry *entry = (HashEntry *)g_ptr_array_index (table, i);
8909
8910 if (entry == NULL) {
8911 encode_int (0, p, &p);
8912 encode_int (0, p, &p);
8913 encode_int (0, p, &p);
8914 } else {
8915 //g_assert (entry->key > 0);
8916 encode_int (entry->key, p, &p);
8917 encode_int (entry->value, p, &p);
8918 if (entry->next)
8919 encode_int (entry->next->index, p, &p);
8920 else
8921 encode_int (0, p, &p);
8922 }
8923 }
8924 g_assert (p - buf <= buf_size);
8925
8926 /* Emit the table */
8927 emit_aot_data (acfg, MONO_AOT_TABLE_EXTRA_METHOD_TABLE, "extra_method_table", buf, p - buf);
8928
8929 g_free (buf);
8930
8931 /*
8932 * Emit a table reverse mapping method indexes to their index in extra_method_info.
8933 * This is used by mono_aot_find_jit_info ().
8934 */
8935 buf_size = acfg->extra_methods->len * 8 + 4;
8936 p = buf = (guint8 *)g_malloc (buf_size);
8937 encode_int (acfg->extra_methods->len, p, &p);
8938 for (i = 0; i < acfg->extra_methods->len; ++i) {
8939 MonoMethod *method = (MonoMethod *)g_ptr_array_index (acfg->extra_methods, i);
8940
8941 encode_int (get_method_index (acfg, method), p, &p);
8942 encode_int (info_offsets [i], p, &p);
8943 }
8944 emit_aot_data (acfg, MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS, "extra_method_info_offsets", buf, p - buf);
8945
8946 g_free (buf);
8947 g_free (info_offsets);
8948 g_ptr_array_free (table, TRUE);
8949 }
8950
8951 static void
8952 generate_aotid (guint8* aotid)
8953 {
8954 gpointer rand_handle;
8955 MonoError error;
8956
8957 mono_rand_open ();
8958 rand_handle = mono_rand_init (NULL, 0);
8959
8960 mono_rand_try_get_bytes (&rand_handle, aotid, 16, &error);
8961 mono_error_assert_ok (&error);
8962
8963 mono_rand_close (rand_handle);
8964 }
8965
8966 static void
8967 emit_exception_info (MonoAotCompile *acfg)
8968 {
8969 int i;
8970 gint32 *offsets;
8971 SeqPointData sp_data;
8972 gboolean seq_points_to_file = FALSE;
8973
8974 offsets = g_new0 (gint32, acfg->nmethods);
8975 for (i = 0; i < acfg->nmethods; ++i) {
8976 if (acfg->cfgs [i]) {
8977 MonoCompile *cfg = acfg->cfgs [i];
8978
8979 // By design aot-runtime decode_exception_debug_info is not able to load sequence point debug data from a file.
8980 // As it is not possible to load debug data from a file its is also not possible to store it in a file.
8981 gboolean method_seq_points_to_file = acfg->aot_opts.gen_msym_dir &&
8982 cfg->gen_seq_points && !cfg->gen_sdb_seq_points;
8983 gboolean method_seq_points_to_binary = cfg->gen_seq_points && !method_seq_points_to_file;
8984
8985 emit_exception_debug_info (acfg, cfg, method_seq_points_to_binary);
8986 offsets [i] = cfg->ex_info_offset;
8987
8988 if (method_seq_points_to_file) {
8989 if (!seq_points_to_file) {
8990 mono_seq_point_data_init (&sp_data, acfg->nmethods);
8991 seq_points_to_file = TRUE;
8992 }
8993 mono_seq_point_data_add (&sp_data, cfg->method->token, cfg->method_index, cfg->seq_point_info);
8994 }
8995 } else {
8996 offsets [i] = 0;
8997 }
8998 }
8999
9000 if (seq_points_to_file) {
9001 char *aotid = mono_guid_to_string_minimal (acfg->image->aotid);
9002 char *dir = g_build_filename (acfg->aot_opts.gen_msym_dir_path, aotid, NULL);
9003 char *image_basename = g_path_get_basename (acfg->image->name);
9004 char *aot_file = g_strdup_printf("%s%s", image_basename, SEQ_POINT_AOT_EXT);
9005 char *aot_file_path = g_build_filename (dir, aot_file, NULL);
9006
9007 if (g_ensure_directory_exists (aot_file_path) == FALSE) {
9008 fprintf (stderr, "AOT : failed to create msym directory: %s\n", aot_file_path);
9009 exit (1);
9010 }
9011
9012 mono_seq_point_data_write (&sp_data, aot_file_path);
9013 mono_seq_point_data_free (&sp_data);
9014
9015 g_free (aotid);
9016 g_free (dir);
9017 g_free (image_basename);
9018 g_free (aot_file);
9019 g_free (aot_file_path);
9020 }
9021
9022 acfg->stats.offsets_size += emit_offset_table (acfg, "ex_info_offsets", MONO_AOT_TABLE_EX_INFO_OFFSETS, acfg->nmethods, 10, offsets);
9023 g_free (offsets);
9024 }
9025
9026 static void
9027 emit_unwind_info (MonoAotCompile *acfg)
9028 {
9029 int i;
9030 char symbol [128];
9031
9032 if (acfg->aot_opts.llvm_only) {
9033 g_assert (acfg->unwind_ops->len == 0);
9034 return;
9035 }
9036
9037 /*
9038 * The unwind info contains a lot of duplicates so we emit each unique
9039 * entry once, and only store the offset from the start of the table in the
9040 * exception info.
9041 */
9042
9043 sprintf (symbol, "unwind_info");
9044 emit_section_change (acfg, RODATA_SECT, 1);
9045 emit_alignment (acfg, 8);
9046 emit_info_symbol (acfg, symbol);
9047
9048 for (i = 0; i < acfg->unwind_ops->len; ++i) {
9049 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
9050 guint8 *unwind_info;
9051 guint32 unwind_info_len;
9052 guint8 buf [16];
9053 guint8 *p;
9054
9055 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
9056
9057 p = buf;
9058 encode_value (unwind_info_len, p, &p);
9059 emit_bytes (acfg, buf, p - buf);
9060 emit_bytes (acfg, unwind_info, unwind_info_len);
9061
9062 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
9063 }
9064 }
9065
9066 static void
9067 emit_class_info (MonoAotCompile *acfg)
9068 {
9069 int i;
9070 gint32 *offsets;
9071
9072 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
9073 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
9074 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
9075
9076 acfg->stats.offsets_size += emit_offset_table (acfg, "class_info_offsets", MONO_AOT_TABLE_CLASS_INFO_OFFSETS, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
9077 g_free (offsets);
9078 }
9079
9080 typedef struct ClassNameTableEntry {
9081 guint32 token, index;
9082 struct ClassNameTableEntry *next;
9083 } ClassNameTableEntry;
9084
9085 static void
9086 emit_class_name_table (MonoAotCompile *acfg)
9087 {
9088 int i, table_size, buf_size;
9089 guint32 token, hash;
9090 MonoClass *klass;
9091 GPtrArray *table;
9092 char *full_name;
9093 guint8 *buf, *p;
9094 ClassNameTableEntry *entry, *new_entry;
9095
9096 /*
9097 * Construct a chained hash table for mapping class names to typedef tokens.
9098 */
9099 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
9100 table = g_ptr_array_sized_new (table_size);
9101 for (i = 0; i < table_size; ++i)
9102 g_ptr_array_add (table, NULL);
9103 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
9104 MonoError error;
9105 token = MONO_TOKEN_TYPE_DEF | (i + 1);
9106 klass = mono_class_get_checked (acfg->image, token, &error);
9107 if (!klass) {
9108 mono_error_cleanup (&error);
9109 continue;
9110 }
9111 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
9112 hash = mono_metadata_str_hash (full_name) % table_size;
9113 g_free (full_name);
9114
9115 /* FIXME: Allocate from the mempool */
9116 new_entry = g_new0 (ClassNameTableEntry, 1);
9117 new_entry->token = token;
9118
9119 entry = (ClassNameTableEntry *)g_ptr_array_index (table, hash);
9120 if (entry == NULL) {
9121 new_entry->index = hash;
9122 g_ptr_array_index (table, hash) = new_entry;
9123 } else {
9124 while (entry->next)
9125 entry = entry->next;
9126
9127 entry->next = new_entry;
9128 new_entry->index = table->len;
9129 g_ptr_array_add (table, new_entry);
9130 }
9131 }
9132
9133 /* Emit the table */
9134 buf_size = table->len * 4 + 4;
9135 p = buf = (guint8 *)g_malloc0 (buf_size);
9136
9137 /* FIXME: Optimize memory usage */
9138 g_assert (table_size < 65000);
9139 encode_int16 (table_size, p, &p);
9140 g_assert (table->len < 65000);
9141 for (i = 0; i < table->len; ++i) {
9142 ClassNameTableEntry *entry = (ClassNameTableEntry *)g_ptr_array_index (table, i);
9143
9144 if (entry == NULL) {
9145 encode_int16 (0, p, &p);
9146 encode_int16 (0, p, &p);
9147 } else {
9148 encode_int16 (mono_metadata_token_index (entry->token), p, &p);
9149 if (entry->next)
9150 encode_int16 (entry->next->index, p, &p);
9151 else
9152 encode_int16 (0, p, &p);
9153 }
9154 g_free (entry);
9155 }
9156 g_assert (p - buf <= buf_size);
9157 g_ptr_array_free (table, TRUE);
9158
9159 emit_aot_data (acfg, MONO_AOT_TABLE_CLASS_NAME, "class_name_table", buf, p - buf);
9160
9161 g_free (buf);
9162 }
9163
9164 static void
9165 emit_image_table (MonoAotCompile *acfg)
9166 {
9167 int i, buf_size;
9168 guint8 *buf, *p;
9169
9170 /*
9171 * The image table is small but referenced in a lot of places.
9172 * So we emit it at once, and reference its elements by an index.
9173 */
9174 buf_size = acfg->image_table->len * 28 + 4;
9175 for (i = 0; i < acfg->image_table->len; i++) {
9176 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
9177 MonoAssemblyName *aname = &image->assembly->aname;
9178
9179 buf_size += strlen (image->assembly_name) + strlen (image->guid) + (aname->culture ? strlen (aname->culture) : 1) + strlen ((char*)aname->public_key_token) + 4;
9180 }
9181
9182 buf = p = (guint8 *)g_malloc0 (buf_size);
9183 encode_int (acfg->image_table->len, p, &p);
9184 for (i = 0; i < acfg->image_table->len; i++) {
9185 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
9186 MonoAssemblyName *aname = &image->assembly->aname;
9187
9188 /* FIXME: Support multi-module assemblies */
9189 g_assert (image->assembly->image == image);
9190
9191 encode_string (image->assembly_name, p, &p);
9192 encode_string (image->guid, p, &p);
9193 encode_string (aname->culture ? aname->culture : "", p, &p);
9194 encode_string ((const char*)aname->public_key_token, p, &p);
9195
9196 while (GPOINTER_TO_UINT (p) % 8 != 0)
9197 p ++;
9198
9199 encode_int (aname->flags, p, &p);
9200 encode_int (aname->major, p, &p);
9201 encode_int (aname->minor, p, &p);
9202 encode_int (aname->build, p, &p);
9203 encode_int (aname->revision, p, &p);
9204 }
9205 g_assert (p - buf <= buf_size);
9206
9207 emit_aot_data (acfg, MONO_AOT_TABLE_IMAGE_TABLE, "image_table", buf, p - buf);
9208
9209 g_free (buf);
9210 }
9211
9212 static void
9213 emit_got_info (MonoAotCompile *acfg, gboolean llvm)
9214 {
9215 int i, first_plt_got_patch = 0, buf_size;
9216 guint8 *p, *buf;
9217 guint32 *got_info_offsets;
9218 GotInfo *info = llvm ? &acfg->llvm_got_info : &acfg->got_info;
9219
9220 /* Add the patches needed by the PLT to the GOT */
9221 if (!llvm) {
9222 acfg->plt_got_offset_base = acfg->got_offset;
9223 first_plt_got_patch = info->got_patches->len;
9224 for (i = 1; i < acfg->plt_offset; ++i) {
9225 MonoPltEntry *plt_entry = (MonoPltEntry *)g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
9226
9227 g_ptr_array_add (info->got_patches, plt_entry->ji);
9228
9229 acfg->stats.got_slot_types [plt_entry->ji->type] ++;
9230 }
9231
9232 acfg->got_offset += acfg->plt_offset;
9233 }
9234
9235 /**
9236 * FIXME:
9237 * - optimize offsets table.
9238 * - reduce number of exported symbols.
9239 * - emit info for a klass only once.
9240 * - determine when a method uses a GOT slot which is guaranteed to be already
9241 * initialized.
9242 * - clean up and document the code.
9243 * - use String.Empty in class libs.
9244 */
9245
9246 /* Encode info required to decode shared GOT entries */
9247 buf_size = info->got_patches->len * 128;
9248 p = buf = (guint8 *)mono_mempool_alloc (acfg->mempool, buf_size);
9249 got_info_offsets = (guint32 *)mono_mempool_alloc (acfg->mempool, info->got_patches->len * sizeof (guint32));
9250 if (!llvm) {
9251 acfg->plt_got_info_offsets = (guint32 *)mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
9252 /* Unused */
9253 if (acfg->plt_offset)
9254 acfg->plt_got_info_offsets [0] = 0;
9255 }
9256 for (i = 0; i < info->got_patches->len; ++i) {
9257 MonoJumpInfo *ji = (MonoJumpInfo *)g_ptr_array_index (info->got_patches, i);
9258 guint8 *p2;
9259
9260 p = buf;
9261
9262 encode_value (ji->type, p, &p);
9263 p2 = p;
9264 encode_patch (acfg, ji, p, &p);
9265 acfg->stats.got_slot_info_sizes [ji->type] += p - p2;
9266 g_assert (p - buf <= buf_size);
9267 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
9268
9269 if (!llvm && i >= first_plt_got_patch)
9270 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
9271 acfg->stats.got_info_size += p - buf;
9272 }
9273
9274 /* Emit got_info_offsets table */
9275
9276 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
9277 acfg->stats.offsets_size += emit_offset_table (acfg, llvm ? "llvm_got_info_offsets" : "got_info_offsets", llvm ? MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS : MONO_AOT_TABLE_GOT_INFO_OFFSETS, llvm ? acfg->llvm_got_offset : first_plt_got_patch, 10, (gint32*)got_info_offsets);
9278 }
9279
9280 static void
9281 emit_got (MonoAotCompile *acfg)
9282 {
9283 char symbol [MAX_SYMBOL_SIZE];
9284
9285 if (acfg->aot_opts.llvm_only)
9286 return;
9287
9288 /* Don't make GOT global so accesses to it don't need relocations */
9289 sprintf (symbol, "%s", acfg->got_symbol);
9290
9291 #ifdef TARGET_MACH
9292 emit_unset_mode (acfg);
9293 fprintf (acfg->fp, ".section __DATA, __bss\n");
9294 emit_alignment (acfg, 8);
9295 if (acfg->llvm)
9296 emit_info_symbol (acfg, "jit_got");
9297 fprintf (acfg->fp, ".lcomm %s, %d\n", acfg->got_symbol, (int)(acfg->got_offset * sizeof (gpointer)));
9298 #else
9299 emit_section_change (acfg, ".bss", 0);
9300 emit_alignment (acfg, 8);
9301 if (acfg->aot_opts.write_symbols)
9302 emit_local_symbol (acfg, symbol, "got_end", FALSE);
9303 emit_label (acfg, symbol);
9304 if (acfg->llvm)
9305 emit_info_symbol (acfg, "jit_got");
9306 if (acfg->got_offset > 0)
9307 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
9308 #endif
9309
9310 sprintf (symbol, "got_end");
9311 emit_label (acfg, symbol);
9312 }
9313
9314 typedef struct GlobalsTableEntry {
9315 guint32 value, index;
9316 struct GlobalsTableEntry *next;
9317 } GlobalsTableEntry;
9318
9319 #ifdef TARGET_WIN32_MSVC
9320 #define DLL_ENTRY_POINT "DllMain"
9321
9322 static void
9323 emit_library_info (MonoAotCompile *acfg)
9324 {
9325 // Only include for shared libraries linked directly from generated object.
9326 if (link_shared_library (acfg)) {
9327 char *name = NULL;
9328 char symbol [MAX_SYMBOL_SIZE];
9329
9330 // Ask linker to export all global symbols.
9331 emit_section_change (acfg, ".drectve", 0);
9332 for (guint i = 0; i < acfg->globals->len; ++i) {
9333 name = (char *)g_ptr_array_index (acfg->globals, i);
9334 g_assert (name != NULL);
9335 sprintf_s (symbol, MAX_SYMBOL_SIZE, " /EXPORT:%s", name);
9336 emit_string (acfg, symbol);
9337 }
9338
9339 // Emit DLLMain function, needed by MSVC linker for DLL's.
9340 // NOTE, DllMain should not go into exports above.
9341 emit_section_change (acfg, ".text", 0);
9342 emit_global (acfg, DLL_ENTRY_POINT, TRUE);
9343 emit_label (acfg, DLL_ENTRY_POINT);
9344
9345 // Simple implementation of DLLMain, just returning TRUE.
9346 // For more information about DLLMain: https://msdn.microsoft.com/en-us/library/windows/desktop/ms682583(v=vs.85).aspx
9347 fprintf (acfg->fp, "movl $1, %%eax\n");
9348 fprintf (acfg->fp, "ret\n");
9349
9350 // Inform linker about our dll entry function.
9351 emit_section_change (acfg, ".drectve", 0);
9352 emit_string (acfg, "/ENTRY:" DLL_ENTRY_POINT);
9353 return;
9354 }
9355 }
9356
9357 #else
9358
9359 static inline void
9360 emit_library_info (MonoAotCompile *acfg)
9361 {
9362 return;
9363 }
9364 #endif
9365
9366 static void
9367 emit_globals (MonoAotCompile *acfg)
9368 {
9369 int i, table_size;
9370 guint32 hash;
9371 GPtrArray *table;
9372 char symbol [1024];
9373 GlobalsTableEntry *entry, *new_entry;
9374
9375 if (!acfg->aot_opts.static_link)
9376 return;
9377
9378 if (acfg->aot_opts.llvm_only) {
9379 g_assert (acfg->globals->len == 0);
9380 return;
9381 }
9382
9383 /*
9384 * When static linking, we emit a table containing our globals.
9385 */
9386
9387 /*
9388 * Construct a chained hash table for mapping global names to their index in
9389 * the globals table.
9390 */
9391 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
9392 table = g_ptr_array_sized_new (table_size);
9393 for (i = 0; i < table_size; ++i)
9394 g_ptr_array_add (table, NULL);
9395 for (i = 0; i < acfg->globals->len; ++i) {
9396 char *name = (char *)g_ptr_array_index (acfg->globals, i);
9397
9398 hash = mono_metadata_str_hash (name) % table_size;
9399
9400 /* FIXME: Allocate from the mempool */
9401 new_entry = g_new0 (GlobalsTableEntry, 1);
9402 new_entry->value = i;
9403
9404 entry = (GlobalsTableEntry *)g_ptr_array_index (table, hash);
9405 if (entry == NULL) {
9406 new_entry->index = hash;
9407 g_ptr_array_index (table, hash) = new_entry;
9408 } else {
9409 while (entry->next)
9410 entry = entry->next;
9411
9412 entry->next = new_entry;
9413 new_entry->index = table->len;
9414 g_ptr_array_add (table, new_entry);
9415 }
9416 }
9417
9418 /* Emit the table */
9419 sprintf (symbol, ".Lglobals_hash");
9420 emit_section_change (acfg, RODATA_SECT, 0);
9421 emit_alignment (acfg, 8);
9422 emit_label (acfg, symbol);
9423
9424 /* FIXME: Optimize memory usage */
9425 g_assert (table_size < 65000);
9426 emit_int16 (acfg, table_size);
9427 for (i = 0; i < table->len; ++i) {
9428 GlobalsTableEntry *entry = (GlobalsTableEntry *)g_ptr_array_index (table, i);
9429
9430 if (entry == NULL) {
9431 emit_int16 (acfg, 0);
9432 emit_int16 (acfg, 0);
9433 } else {
9434 emit_int16 (acfg, entry->value + 1);
9435 if (entry->next)
9436 emit_int16 (acfg, entry->next->index);
9437 else
9438 emit_int16 (acfg, 0);
9439 }
9440 }
9441
9442 /* Emit the names */
9443 for (i = 0; i < acfg->globals->len; ++i) {
9444 char *name = (char *)g_ptr_array_index (acfg->globals, i);
9445
9446 sprintf (symbol, "name_%d", i);
9447 emit_section_change (acfg, RODATA_SECT, 1);
9448 #ifdef TARGET_MACH
9449 emit_alignment (acfg, 4);
9450 #endif
9451 emit_label (acfg, symbol);
9452 emit_string (acfg, name);
9453 }
9454
9455 /* Emit the globals table */
9456 sprintf (symbol, "globals");
9457 emit_section_change (acfg, ".data", 0);
9458 /* This is not a global, since it is accessed by the init function */
9459 emit_alignment (acfg, 8);
9460 emit_info_symbol (acfg, symbol);
9461
9462 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
9463 emit_pointer (acfg, symbol);
9464
9465 for (i = 0; i < acfg->globals->len; ++i) {
9466 char *name = (char *)g_ptr_array_index (acfg->globals, i);
9467
9468 sprintf (symbol, "name_%d", i);
9469 emit_pointer (acfg, symbol);
9470
9471 g_assert (strlen (name) < sizeof (symbol));
9472 sprintf (symbol, "%s", name);
9473 emit_pointer (acfg, symbol);
9474 }
9475 /* Null terminate the table */
9476 emit_int32 (acfg, 0);
9477 emit_int32 (acfg, 0);
9478 }
9479
9480 static void
9481 emit_mem_end (MonoAotCompile *acfg)
9482 {
9483 char symbol [128];
9484
9485 if (acfg->aot_opts.llvm_only)
9486 return;
9487
9488 sprintf (symbol, "mem_end");
9489 emit_section_change (acfg, ".text", 1);
9490 emit_alignment_code (acfg, 8);
9491 emit_label (acfg, symbol);
9492 }
9493
9494 static void
9495 init_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info)
9496 {
9497 int i;
9498
9499 info->version = MONO_AOT_FILE_VERSION;
9500 info->plt_got_offset_base = acfg->plt_got_offset_base;
9501 info->got_size = acfg->got_offset * sizeof (gpointer);
9502 info->plt_size = acfg->plt_offset;
9503 info->nmethods = acfg->nmethods;
9504 info->flags = acfg->flags;
9505 info->opts = acfg->opts;
9506 info->simd_opts = acfg->simd_opts;
9507 info->gc_name_index = acfg->gc_name_offset;
9508 info->datafile_size = acfg->datafile_offset;
9509 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
9510 info->table_offsets [i] = acfg->table_offsets [i];
9511 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9512 info->num_trampolines [i] = acfg->num_trampolines [i];
9513 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9514 info->trampoline_got_offset_base [i] = acfg->trampoline_got_offset_base [i];
9515 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9516 info->trampoline_size [i] = acfg->trampoline_size [i];
9517 info->num_rgctx_fetch_trampolines = acfg->aot_opts.nrgctx_fetch_trampolines;
9518
9519 info->double_align = MONO_ABI_ALIGNOF (double);
9520 info->long_align = MONO_ABI_ALIGNOF (gint64);
9521 info->generic_tramp_num = MONO_TRAMPOLINE_NUM;
9522 info->tramp_page_size = acfg->tramp_page_size;
9523 info->nshared_got_entries = acfg->nshared_got_entries;
9524 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9525 info->tramp_page_code_offsets [i] = acfg->tramp_page_code_offsets [i];
9526
9527 memcpy(&info->aotid, acfg->image->aotid, 16);
9528 }
9529
9530 static void
9531 emit_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info)
9532 {
9533 char symbol [MAX_SYMBOL_SIZE];
9534 int i, sindex;
9535 const char **symbols;
9536
9537 symbols = g_new0 (const char *, MONO_AOT_FILE_INFO_NUM_SYMBOLS);
9538 sindex = 0;
9539 symbols [sindex ++] = acfg->got_symbol;
9540 if (acfg->llvm) {
9541 symbols [sindex ++] = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, acfg->llvm_got_symbol);
9542 symbols [sindex ++] = acfg->llvm_eh_frame_symbol;
9543 } else {
9544 symbols [sindex ++] = NULL;
9545 symbols [sindex ++] = NULL;
9546 }
9547 /* llvm_get_method */
9548 symbols [sindex ++] = NULL;
9549 /* llvm_get_unbox_tramp */
9550 symbols [sindex ++] = NULL;
9551 if (!acfg->aot_opts.llvm_only) {
9552 symbols [sindex ++] = "jit_code_start";
9553 symbols [sindex ++] = "jit_code_end";
9554 symbols [sindex ++] = "method_addresses";
9555 } else {
9556 symbols [sindex ++] = NULL;
9557 symbols [sindex ++] = NULL;
9558 symbols [sindex ++] = NULL;
9559 }
9560 if (acfg->data_outfile) {
9561 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
9562 symbols [sindex ++] = NULL;
9563 } else {
9564 symbols [sindex ++] = "blob";
9565 symbols [sindex ++] = "class_name_table";
9566 symbols [sindex ++] = "class_info_offsets";
9567 symbols [sindex ++] = "method_info_offsets";
9568 symbols [sindex ++] = "ex_info_offsets";
9569 symbols [sindex ++] = "extra_method_info_offsets";
9570 symbols [sindex ++] = "extra_method_table";
9571 symbols [sindex ++] = "got_info_offsets";
9572 if (acfg->llvm)
9573 symbols [sindex ++] = "llvm_got_info_offsets";
9574 else
9575 symbols [sindex ++] = NULL;
9576 symbols [sindex ++] = "image_table";
9577 }
9578 symbols [sindex ++] = "mem_end";
9579 symbols [sindex ++] = "assembly_guid";
9580 symbols [sindex ++] = "runtime_version";
9581 if (acfg->num_trampoline_got_entries) {
9582 symbols [sindex ++] = "specific_trampolines";
9583 symbols [sindex ++] = "static_rgctx_trampolines";
9584 symbols [sindex ++] = "imt_trampolines";
9585 symbols [sindex ++] = "gsharedvt_arg_trampolines";
9586 } else {
9587 symbols [sindex ++] = NULL;
9588 symbols [sindex ++] = NULL;
9589 symbols [sindex ++] = NULL;
9590 symbols [sindex ++] = NULL;
9591 }
9592 if (acfg->aot_opts.static_link) {
9593 symbols [sindex ++] = "globals";
9594 } else {
9595 symbols [sindex ++] = NULL;
9596 }
9597 symbols [sindex ++] = "assembly_name";
9598 symbols [sindex ++] = "plt";
9599 symbols [sindex ++] = "plt_end";
9600 symbols [sindex ++] = "unwind_info";
9601 if (!acfg->aot_opts.llvm_only) {
9602 symbols [sindex ++] = "unbox_trampolines";
9603 symbols [sindex ++] = "unbox_trampolines_end";
9604 symbols [sindex ++] = "unbox_trampoline_addresses";
9605 } else {
9606 symbols [sindex ++] = NULL;
9607 symbols [sindex ++] = NULL;
9608 symbols [sindex ++] = NULL;
9609 }
9610
9611 g_assert (sindex == MONO_AOT_FILE_INFO_NUM_SYMBOLS);
9612
9613 sprintf (symbol, "%smono_aot_file_info", acfg->user_symbol_prefix);
9614 emit_section_change (acfg, ".data", 0);
9615 emit_alignment (acfg, 8);
9616 emit_label (acfg, symbol);
9617 if (!acfg->aot_opts.static_link)
9618 emit_global (acfg, symbol, FALSE);
9619
9620 /* The data emitted here must match MonoAotFileInfo. */
9621
9622 emit_int32 (acfg, info->version);
9623 emit_int32 (acfg, info->dummy);
9624
9625 /*
9626 * We emit pointers to our data structures instead of emitting global symbols which
9627 * point to them, to reduce the number of globals, and because using globals leads to
9628 * various problems (i.e. arm/thumb).
9629 */
9630 for (i = 0; i < MONO_AOT_FILE_INFO_NUM_SYMBOLS; ++i)
9631 emit_pointer (acfg, symbols [i]);
9632
9633 emit_int32 (acfg, info->plt_got_offset_base);
9634 emit_int32 (acfg, info->got_size);
9635 emit_int32 (acfg, info->plt_size);
9636 emit_int32 (acfg, info->nmethods);
9637 emit_int32 (acfg, info->flags);
9638 emit_int32 (acfg, info->opts);
9639 emit_int32 (acfg, info->simd_opts);
9640 emit_int32 (acfg, info->gc_name_index);
9641 emit_int32 (acfg, info->num_rgctx_fetch_trampolines);
9642 emit_int32 (acfg, info->double_align);
9643 emit_int32 (acfg, info->long_align);
9644 emit_int32 (acfg, info->generic_tramp_num);
9645 emit_int32 (acfg, info->tramp_page_size);
9646 emit_int32 (acfg, info->nshared_got_entries);
9647 emit_int32 (acfg, info->datafile_size);
9648
9649 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
9650 emit_int32 (acfg, info->table_offsets [i]);
9651 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9652 emit_int32 (acfg, info->num_trampolines [i]);
9653 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9654 emit_int32 (acfg, info->trampoline_got_offset_base [i]);
9655 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9656 emit_int32 (acfg, info->trampoline_size [i]);
9657 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
9658 emit_int32 (acfg, info->tramp_page_code_offsets [i]);
9659
9660 emit_bytes (acfg, info->aotid, 16);
9661
9662 if (acfg->aot_opts.static_link) {
9663 emit_global_inner (acfg, acfg->static_linking_symbol, FALSE);
9664 emit_alignment (acfg, sizeof (gpointer));
9665 emit_label (acfg, acfg->static_linking_symbol);
9666 emit_pointer_2 (acfg, acfg->user_symbol_prefix, "mono_aot_file_info");
9667 }
9668 }
9669
9670 /*
9671 * Emit a structure containing all the information not stored elsewhere.
9672 */
9673 static void
9674 emit_file_info (MonoAotCompile *acfg)
9675 {
9676 char *build_info;
9677 MonoAotFileInfo *info;
9678
9679 if (acfg->aot_opts.bind_to_runtime_version) {
9680 build_info = mono_get_runtime_build_info ();
9681 emit_string_symbol (acfg, "runtime_version", build_info);
9682 g_free (build_info);
9683 } else {
9684 emit_string_symbol (acfg, "runtime_version", "");
9685 }
9686
9687 emit_string_symbol (acfg, "assembly_guid" , acfg->image->guid);
9688
9689 /* Emit a string holding the assembly name */
9690 emit_string_symbol (acfg, "assembly_name", acfg->image->assembly->aname.name);
9691
9692 info = g_new0 (MonoAotFileInfo, 1);
9693 init_aot_file_info (acfg, info);
9694
9695 if (acfg->aot_opts.static_link) {
9696 char symbol [MAX_SYMBOL_SIZE];
9697 char *p;
9698
9699 /*
9700 * Emit a global symbol which can be passed by an embedding app to
9701 * mono_aot_register_module (). The symbol points to a pointer to the the file info
9702 * structure.
9703 */
9704 sprintf (symbol, "%smono_aot_module_%s_info", acfg->user_symbol_prefix, acfg->image->assembly->aname.name);
9705
9706 /* Get rid of characters which cannot occur in symbols */
9707 p = symbol;
9708 for (p = symbol; *p; ++p) {
9709 if (!(isalnum (*p) || *p == '_'))
9710 *p = '_';
9711 }
9712 acfg->static_linking_symbol = g_strdup (symbol);
9713 }
9714
9715 if (acfg->llvm)
9716 mono_llvm_emit_aot_file_info (info, acfg->has_jitted_code);
9717 else
9718 emit_aot_file_info (acfg, info);
9719 }
9720
9721 static void
9722 emit_blob (MonoAotCompile *acfg)
9723 {
9724 acfg->blob_closed = TRUE;
9725
9726 emit_aot_data (acfg, MONO_AOT_TABLE_BLOB, "blob", (guint8*)acfg->blob.data, acfg->blob.index);
9727 }
9728
9729 static void
9730 emit_objc_selectors (MonoAotCompile *acfg)
9731 {
9732 int i;
9733 char symbol [128];
9734
9735 if (!acfg->objc_selectors || acfg->objc_selectors->len == 0)
9736 return;
9737
9738 /*
9739 * From
9740 * cat > foo.m << EOF
9741 * void *ret ()
9742 * {
9743 * return @selector(print:);
9744 * }
9745 * EOF
9746 */
9747
9748 mono_img_writer_emit_unset_mode (acfg->w);
9749 g_assert (acfg->fp);
9750 fprintf (acfg->fp, ".section __DATA,__objc_selrefs,literal_pointers,no_dead_strip\n");
9751 fprintf (acfg->fp, ".align 3\n");
9752 for (i = 0; i < acfg->objc_selectors->len; ++i) {
9753 sprintf (symbol, "L_OBJC_SELECTOR_REFERENCES_%d", i);
9754 emit_label (acfg, symbol);
9755 sprintf (symbol, "L_OBJC_METH_VAR_NAME_%d", i);
9756 emit_pointer (acfg, symbol);
9757
9758 }
9759 fprintf (acfg->fp, ".section __TEXT,__cstring,cstring_literals\n");
9760 for (i = 0; i < acfg->objc_selectors->len; ++i) {
9761 fprintf (acfg->fp, "L_OBJC_METH_VAR_NAME_%d:\n", i);
9762 fprintf (acfg->fp, ".asciz \"%s\"\n", (char*)g_ptr_array_index (acfg->objc_selectors, i));
9763 }
9764
9765 fprintf (acfg->fp, ".section __DATA,__objc_imageinfo,regular,no_dead_strip\n");
9766 fprintf (acfg->fp, ".align 3\n");
9767 fprintf (acfg->fp, "L_OBJC_IMAGE_INFO:\n");
9768 fprintf (acfg->fp, ".long 0\n");
9769 fprintf (acfg->fp, ".long 16\n");
9770 }
9771
9772 static void
9773 emit_dwarf_info (MonoAotCompile *acfg)
9774 {
9775 #ifdef EMIT_DWARF_INFO
9776 int i;
9777 char symbol2 [128];
9778
9779 /* DIEs for methods */
9780 for (i = 0; i < acfg->nmethods; ++i) {
9781 MonoCompile *cfg = acfg->cfgs [i];
9782
9783 if (!cfg)
9784 continue;
9785
9786 // FIXME: LLVM doesn't define .Lme_...
9787 if (cfg->compile_llvm)
9788 continue;
9789
9790 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
9791
9792 mono_dwarf_writer_emit_method (acfg->dwarf, cfg, cfg->method, cfg->asm_symbol, symbol2, cfg->asm_debug_symbol, (guint8 *)cfg->jit_info->code_start, cfg->jit_info->code_size, cfg->args, cfg->locals, cfg->unwind_ops, mono_debug_find_method (cfg->jit_info->d.method, mono_domain_get ()));
9793 }
9794 #endif
9795 }
9796
9797 static gboolean
9798 collect_methods (MonoAotCompile *acfg)
9799 {
9800 int mindex, i;
9801 MonoImage *image = acfg->image;
9802
9803 /* Collect methods */
9804 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
9805 MonoError error;
9806 MonoMethod *method;
9807 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
9808
9809 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
9810
9811 if (!method) {
9812 aot_printerrf (acfg, "Failed to load method 0x%x from '%s' due to %s.\n", token, image->name, mono_error_get_message (&error));
9813 aot_printerrf (acfg, "Run with MONO_LOG_LEVEL=debug for more information.\n");
9814 mono_error_cleanup (&error);
9815 return FALSE;
9816 }
9817
9818 /* Load all methods eagerly to skip the slower lazy loading code */
9819 mono_class_setup_methods (method->klass);
9820
9821 if (mono_aot_mode_is_full (&acfg->aot_opts) && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
9822 /* Compile the wrapper instead */
9823 /* We do this here instead of add_wrappers () because it is easy to do it here */
9824 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, TRUE, TRUE);
9825 method = wrapper;
9826 }
9827
9828 /* FIXME: Some mscorlib methods don't have debug info */
9829 /*
9830 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
9831 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
9832 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
9833 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
9834 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
9835 if (!mono_debug_lookup_method (method)) {
9836 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_get_full_name (method));
9837 exit (1);
9838 }
9839 }
9840 }
9841 */
9842
9843 if (method->is_generic || mono_class_is_gtd (method->klass))
9844 /* Compile the ref shared version instead */
9845 method = mini_get_shared_method (method);
9846
9847 /* Since we add the normal methods first, their index will be equal to their zero based token index */
9848 add_method_with_index (acfg, method, i, FALSE);
9849 acfg->method_index ++;
9850 }
9851
9852 /* gsharedvt methods */
9853 for (mindex = 0; mindex < image->tables [MONO_TABLE_METHOD].rows; ++mindex) {
9854 MonoError error;
9855 MonoMethod *method;
9856 guint32 token = MONO_TOKEN_METHOD_DEF | (mindex + 1);
9857
9858 if (!(acfg->opts & MONO_OPT_GSHAREDVT))
9859 continue;
9860
9861 method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error);
9862 report_loader_error (acfg, &error, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error));
9863
9864 if (method->is_generic || mono_class_is_gtd (method->klass)) {
9865 MonoMethod *gshared;
9866
9867 gshared = mini_get_shared_method_full (method, TRUE, TRUE);
9868 add_extra_method (acfg, gshared);
9869 }
9870 }
9871
9872 if (mono_aot_mode_is_full (&acfg->aot_opts))
9873 add_generic_instances (acfg);
9874
9875 if (mono_aot_mode_is_full (&acfg->aot_opts))
9876 add_wrappers (acfg);
9877 return TRUE;
9878 }
9879
9880 static void
9881 compile_methods (MonoAotCompile *acfg)
9882 {
9883 int i, methods_len;
9884
9885 if (acfg->aot_opts.nthreads > 0) {
9886 GPtrArray *frag;
9887 int len, j;
9888 GPtrArray *threads;
9889 MonoThreadHandle *thread_handle;
9890 gpointer *user_data;
9891 MonoMethod **methods;
9892
9893 methods_len = acfg->methods->len;
9894
9895 len = acfg->methods->len / acfg->aot_opts.nthreads;
9896 g_assert (len > 0);
9897 /*
9898 * Partition the list of methods into fragments, and hand it to threads to
9899 * process.
9900 */
9901 threads = g_ptr_array_new ();
9902 /* Make a copy since acfg->methods is modified by compile_method () */
9903 methods = g_new0 (MonoMethod*, methods_len);
9904 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
9905 for (i = 0; i < methods_len; ++i)
9906 methods [i] = (MonoMethod *)g_ptr_array_index (acfg->methods, i);
9907 i = 0;
9908 while (i < methods_len) {
9909 frag = g_ptr_array_new ();
9910 for (j = 0; j < len; ++j) {
9911 if (i < methods_len) {
9912 g_ptr_array_add (frag, methods [i]);
9913 i ++;
9914 }
9915 }
9916
9917 user_data = g_new0 (gpointer, 3);
9918 user_data [0] = mono_domain_get ();
9919 user_data [1] = acfg;
9920 user_data [2] = frag;
9921
9922 thread_handle = mono_threads_create_thread (compile_thread_main, (gpointer) user_data, NULL, NULL);
9923 g_ptr_array_add (threads, thread_handle);
9924 }
9925 g_free (methods);
9926
9927 for (i = 0; i < threads->len; ++i) {
9928 mono_thread_info_wait_one_handle (g_ptr_array_index (threads, i), INFINITE, FALSE);
9929 mono_threads_close_thread_handle (g_ptr_array_index (threads, i));
9930 }
9931 } else {
9932 methods_len = 0;
9933 }
9934
9935 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
9936 for (i = methods_len; i < acfg->methods->len; ++i) {
9937 /* This can new methods to acfg->methods */
9938 compile_method (acfg, (MonoMethod *)g_ptr_array_index (acfg->methods, i));
9939 }
9940 }
9941
9942 static int
9943 compile_asm (MonoAotCompile *acfg)
9944 {
9945 char *command, *objfile;
9946 char *outfile_name, *tmp_outfile_name, *llvm_ofile;
9947 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
9948 char *ld_flags = acfg->aot_opts.ld_flags ? acfg->aot_opts.ld_flags : g_strdup("");
9949
9950 #ifdef TARGET_WIN32_MSVC
9951 #define AS_OPTIONS "-c -x assembler"
9952 #elif defined(TARGET_AMD64) && !defined(TARGET_MACH)
9953 #define AS_OPTIONS "--64"
9954 #elif defined(TARGET_POWERPC64)
9955 #define AS_OPTIONS "-a64 -mppc64"
9956 #elif defined(sparc) && SIZEOF_VOID_P == 8
9957 #define AS_OPTIONS "-xarch=v9"
9958 #elif defined(TARGET_X86) && defined(TARGET_MACH) && !defined(__native_client_codegen__)
9959 #define AS_OPTIONS "-arch i386"
9960 #else
9961 #define AS_OPTIONS ""
9962 #endif
9963
9964 #ifdef __native_client_codegen__
9965 #if defined(TARGET_AMD64)
9966 #define AS_NAME "nacl64-as"
9967 #else
9968 #define AS_NAME "nacl-as"
9969 #endif
9970 #elif defined(TARGET_OSX)
9971 #define AS_NAME "clang"
9972 #elif defined(TARGET_WIN32_MSVC)
9973 #define AS_NAME "clang.exe"
9974 #else
9975 #define AS_NAME "as"
9976 #endif
9977
9978 #ifdef TARGET_WIN32_MSVC
9979 #define AS_OBJECT_FILE_SUFFIX "obj"
9980 #else
9981 #define AS_OBJECT_FILE_SUFFIX "o"
9982 #endif
9983
9984 #if defined(sparc)
9985 #define LD_NAME "ld"
9986 #define LD_OPTIONS "-shared -G"
9987 #elif defined(__ppc__) && defined(TARGET_MACH)
9988 #define LD_NAME "gcc"
9989 #define LD_OPTIONS "-dynamiclib"
9990 #elif defined(TARGET_AMD64) && defined(TARGET_MACH)
9991 #define LD_NAME "clang"
9992 #define LD_OPTIONS "--shared"
9993 #elif defined(TARGET_WIN32_MSVC)
9994 #define LD_NAME "link.exe"
9995 #define LD_OPTIONS "/DLL /MACHINE:X64 /NOLOGO"
9996 #elif defined(TARGET_WIN32) && !defined(TARGET_ANDROID)
9997 #define LD_NAME "gcc"
9998 #define LD_OPTIONS "-shared"
9999 #elif defined(TARGET_X86) && defined(TARGET_MACH) && !defined(__native_client_codegen__)
10000 #define LD_NAME "clang"
10001 #define LD_OPTIONS "-m32 -dynamiclib"
10002 #elif defined(TARGET_ARM) && !defined(TARGET_ANDROID)
10003 #define LD_NAME "gcc"
10004 #define LD_OPTIONS "--shared"
10005 #elif defined(TARGET_POWERPC64)
10006 #define LD_OPTIONS "-m elf64ppc"
10007 #endif
10008
10009 #ifndef LD_OPTIONS
10010 #define LD_OPTIONS ""
10011 #endif
10012
10013 if (acfg->aot_opts.asm_only) {
10014 aot_printf (acfg, "Output file: '%s'.\n", acfg->tmpfname);
10015 if (acfg->aot_opts.static_link)
10016 aot_printf (acfg, "Linking symbol: '%s'.\n", acfg->static_linking_symbol);
10017 if (acfg->llvm)
10018 aot_printf (acfg, "LLVM output file: '%s'.\n", acfg->llvm_sfile);
10019 return 0;
10020 }
10021
10022 if (acfg->aot_opts.static_link) {
10023 if (acfg->aot_opts.outfile)
10024 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
10025 else
10026 objfile = g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->image->name);
10027 } else {
10028 objfile = g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname);
10029 }
10030
10031 #ifdef TARGET_OSX
10032 g_string_append (acfg->as_args, "-c -x assembler");
10033 #endif
10034
10035 command = g_strdup_printf ("\"%s%s\" %s %s -o %s %s", tool_prefix, AS_NAME, AS_OPTIONS,
10036 acfg->as_args ? acfg->as_args->str : "",
10037 wrap_path (objfile), wrap_path (acfg->tmpfname));
10038 aot_printf (acfg, "Executing the native assembler: %s\n", command);
10039 if (execute_system (command) != 0) {
10040 g_free (command);
10041 g_free (objfile);
10042 return 1;
10043 }
10044
10045 if (acfg->llvm && !acfg->llvm_owriter) {
10046 command = g_strdup_printf ("\"%s%s\" %s %s -o %s %s", tool_prefix, AS_NAME, AS_OPTIONS,
10047 acfg->as_args ? acfg->as_args->str : "",
10048 wrap_path (acfg->llvm_ofile), wrap_path (acfg->llvm_sfile));
10049 aot_printf (acfg, "Executing the native assembler: %s\n", command);
10050 if (execute_system (command) != 0) {
10051 g_free (command);
10052 g_free (objfile);
10053 return 1;
10054 }
10055 }
10056
10057 g_free (command);
10058
10059 if (acfg->aot_opts.static_link) {
10060 aot_printf (acfg, "Output file: '%s'.\n", objfile);
10061 aot_printf (acfg, "Linking symbol: '%s'.\n", acfg->static_linking_symbol);
10062 g_free (objfile);
10063 return 0;
10064 }
10065
10066 if (acfg->aot_opts.outfile)
10067 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
10068 else
10069 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, MONO_SOLIB_EXT);
10070
10071 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
10072
10073 if (acfg->llvm) {
10074 llvm_ofile = g_strdup_printf ("\"%s\"", acfg->llvm_ofile);
10075 } else {
10076 llvm_ofile = g_strdup ("");
10077 }
10078
10079 /* replace the ; flags separators with spaces */
10080 g_strdelimit (ld_flags, ";", ' ');
10081
10082 if (acfg->aot_opts.llvm_only)
10083 ld_flags = g_strdup_printf ("%s %s", ld_flags, "-lstdc++");
10084
10085 #ifdef TARGET_WIN32_MSVC
10086 g_assert (tmp_outfile_name != NULL);
10087 g_assert (objfile != NULL);
10088 command = g_strdup_printf ("\"%s%s\" %s %s /OUT:\"%s\" \"%s\"", tool_prefix, LD_NAME, LD_OPTIONS,
10089 ld_flags, tmp_outfile_name, objfile);
10090 #elif defined(LD_NAME)
10091 command = g_strdup_printf ("%s%s %s -o %s %s %s %s", tool_prefix, LD_NAME, LD_OPTIONS,
10092 wrap_path (tmp_outfile_name), wrap_path (llvm_ofile),
10093 wrap_path (g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname)), ld_flags);
10094 #else
10095 // Default (linux)
10096 if (acfg->aot_opts.tool_prefix) {
10097 /* Cross compiling */
10098 command = g_strdup_printf ("\"%sld\" %s -shared -o %s %s %s %s", tool_prefix, LD_OPTIONS,
10099 wrap_path (tmp_outfile_name), wrap_path (llvm_ofile),
10100 wrap_path (g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname)), ld_flags);
10101 } else {
10102 char *args = g_strdup_printf ("%s -shared -o %s %s %s %s", LD_OPTIONS,
10103 wrap_path (tmp_outfile_name), wrap_path (llvm_ofile),
10104 wrap_path (g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname)), ld_flags);
10105
10106 if (acfg->llvm) {
10107 command = g_strdup_printf ("clang++ %s", args);
10108 } else {
10109 command = g_strdup_printf ("\"%sld\" %s", tool_prefix, args);
10110 }
10111 g_free (args);
10112 }
10113 #endif
10114 aot_printf (acfg, "Executing the native linker: %s\n", command);
10115 if (execute_system (command) != 0) {
10116 g_free (tmp_outfile_name);
10117 g_free (outfile_name);
10118 g_free (command);
10119 g_free (objfile);
10120 g_free (ld_flags);
10121 return 1;
10122 }
10123
10124 g_free (command);
10125
10126 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, MONO_SOLIB_EXT);
10127 printf ("Stripping the binary: %s\n", com);
10128 execute_system (com);
10129 g_free (com);*/
10130
10131 #if defined(TARGET_ARM) && !defined(TARGET_MACH)
10132 /*
10133 * gas generates 'mapping symbols' each time code and data is mixed, which
10134 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
10135 */
10136 command = g_strdup_printf ("\"%sstrip\" --strip-symbol=\\$a --strip-symbol=\\$d %s", wrap_path(tool_prefix), wrap_path(tmp_outfile_name));
10137 aot_printf (acfg, "Stripping the binary: %s\n", command);
10138 if (execute_system (command) != 0) {
10139 g_free (tmp_outfile_name);
10140 g_free (outfile_name);
10141 g_free (command);
10142 g_free (objfile);
10143 return 1;
10144 }
10145 #endif
10146
10147 if (0 != rename (tmp_outfile_name, outfile_name)) {
10148 if (G_FILE_ERROR_EXIST == g_file_error_from_errno (errno)) {
10149 /* Since we are rebuilding the module we need to be able to replace any old copies. Remove old file and retry rename operation. */
10150 unlink (outfile_name);
10151 rename (tmp_outfile_name, outfile_name);
10152 }
10153 }
10154
10155 #if defined(TARGET_MACH)
10156 command = g_strdup_printf ("dsymutil \"%s\"", outfile_name);
10157 aot_printf (acfg, "Executing dsymutil: %s\n", command);
10158 if (execute_system (command) != 0) {
10159 return 1;
10160 }
10161 #endif
10162
10163 if (!acfg->aot_opts.save_temps)
10164 unlink (objfile);
10165
10166 g_free (tmp_outfile_name);
10167 g_free (outfile_name);
10168 g_free (objfile);
10169
10170 if (acfg->aot_opts.save_temps)
10171 aot_printf (acfg, "Retained input file.\n");
10172 else
10173 unlink (acfg->tmpfname);
10174
10175 return 0;
10176 }
10177
10178 static void init_got_info (GotInfo *info)
10179 {
10180 int i;
10181
10182 info->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
10183 info->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
10184 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
10185 info->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
10186 info->got_patches = g_ptr_array_new ();
10187 }
10188
10189 static MonoAotCompile*
10190 acfg_create (MonoAssembly *ass, guint32 opts)
10191 {
10192 MonoImage *image = ass->image;
10193 MonoAotCompile *acfg;
10194
10195 acfg = g_new0 (MonoAotCompile, 1);
10196 acfg->methods = g_ptr_array_new ();
10197 acfg->method_indexes = g_hash_table_new (NULL, NULL);
10198 acfg->method_depth = g_hash_table_new (NULL, NULL);
10199 acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL);
10200 acfg->patch_to_plt_entry = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
10201 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
10202 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, NULL);
10203 acfg->method_to_pinvoke_import = g_hash_table_new_full (NULL, NULL, NULL, g_free);
10204 acfg->image_hash = g_hash_table_new (NULL, NULL);
10205 acfg->image_table = g_ptr_array_new ();
10206 acfg->globals = g_ptr_array_new ();
10207 acfg->image = image;
10208 acfg->opts = opts;
10209 /* TODO: Write out set of SIMD instructions used, rather than just those available */
10210 acfg->simd_opts = mono_arch_cpu_enumerate_simd_versions ();
10211 acfg->mempool = mono_mempool_new ();
10212 acfg->extra_methods = g_ptr_array_new ();
10213 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
10214 acfg->unwind_ops = g_ptr_array_new ();
10215 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
10216 acfg->method_order = g_ptr_array_new ();
10217 acfg->export_names = g_hash_table_new (NULL, NULL);
10218 acfg->klass_blob_hash = g_hash_table_new (NULL, NULL);
10219 acfg->method_blob_hash = g_hash_table_new (NULL, NULL);
10220 acfg->plt_entry_debug_sym_cache = g_hash_table_new (g_str_hash, g_str_equal);
10221 acfg->gsharedvt_in_signatures = g_hash_table_new ((GHashFunc)mono_signature_hash, (GEqualFunc)mono_metadata_signature_equal);
10222 acfg->gsharedvt_out_signatures = g_hash_table_new ((GHashFunc)mono_signature_hash, (GEqualFunc)mono_metadata_signature_equal);
10223 mono_os_mutex_init_recursive (&acfg->mutex);
10224
10225 init_got_info (&acfg->got_info);
10226 init_got_info (&acfg->llvm_got_info);
10227
10228 return acfg;
10229 }
10230
10231 static void
10232 got_info_free (GotInfo *info)
10233 {
10234 int i;
10235
10236 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
10237 g_hash_table_destroy (info->patch_to_got_offset_by_type [i]);
10238 g_free (info->patch_to_got_offset_by_type);
10239 g_hash_table_destroy (info->patch_to_got_offset);
10240 g_ptr_array_free (info->got_patches, TRUE);
10241 }
10242
10243 static void
10244 acfg_free (MonoAotCompile *acfg)
10245 {
10246 int i;
10247
10248 mono_img_writer_destroy (acfg->w);
10249 for (i = 0; i < acfg->nmethods; ++i)
10250 if (acfg->cfgs [i])
10251 mono_destroy_compile (acfg->cfgs [i]);
10252
10253 g_free (acfg->cfgs);
10254
10255 g_free (acfg->static_linking_symbol);
10256 g_free (acfg->got_symbol);
10257 g_free (acfg->plt_symbol);
10258 g_ptr_array_free (acfg->methods, TRUE);
10259 g_ptr_array_free (acfg->image_table, TRUE);
10260 g_ptr_array_free (acfg->globals, TRUE);
10261 g_ptr_array_free (acfg->unwind_ops, TRUE);
10262 g_hash_table_destroy (acfg->method_indexes);
10263 g_hash_table_destroy (acfg->method_depth);
10264 g_hash_table_destroy (acfg->plt_offset_to_entry);
10265 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i) {
10266 if (acfg->patch_to_plt_entry [i])
10267 g_hash_table_destroy (acfg->patch_to_plt_entry [i]);
10268 }
10269 g_free (acfg->patch_to_plt_entry);
10270 g_hash_table_destroy (acfg->method_to_cfg);
10271 g_hash_table_destroy (acfg->token_info_hash);
10272 g_hash_table_destroy (acfg->method_to_pinvoke_import);
10273 g_hash_table_destroy (acfg->image_hash);
10274 g_hash_table_destroy (acfg->unwind_info_offsets);
10275 g_hash_table_destroy (acfg->method_label_hash);
10276 if (acfg->typespec_classes)
10277 g_hash_table_destroy (acfg->typespec_classes);
10278 g_hash_table_destroy (acfg->export_names);
10279 g_hash_table_destroy (acfg->plt_entry_debug_sym_cache);
10280 g_hash_table_destroy (acfg->klass_blob_hash);
10281 g_hash_table_destroy (acfg->method_blob_hash);
10282 got_info_free (&acfg->got_info);
10283 got_info_free (&acfg->llvm_got_info);
10284 mono_mempool_destroy (acfg->mempool);
10285 g_free (acfg);
10286 }
10287
10288 #define WRAPPER(e,n) n,
10289 static const char* const
10290 wrapper_type_names [MONO_WRAPPER_NUM + 1] = {
10291 #include "mono/metadata/wrapper-types.h"
10292 NULL
10293 };
10294
10295 static G_GNUC_UNUSED const char*
10296 get_wrapper_type_name (int type)
10297 {
10298 return wrapper_type_names [type];
10299 }
10300
10301 //#define DUMP_PLT
10302 //#define DUMP_GOT
10303
10304 static void aot_dump (MonoAotCompile *acfg)
10305 {
10306 FILE *dumpfile;
10307 char * dumpname;
10308
10309 JsonWriter writer;
10310 mono_json_writer_init (&writer);
10311
10312 mono_json_writer_object_begin(&writer);
10313
10314 // Methods
10315 mono_json_writer_indent (&writer);
10316 mono_json_writer_object_key(&writer, "methods");
10317 mono_json_writer_array_begin (&writer);
10318
10319 int i;
10320 for (i = 0; i < acfg->nmethods; ++i) {
10321 MonoCompile *cfg;
10322 MonoMethod *method;
10323 MonoClass *klass;
10324
10325 cfg = acfg->cfgs [i];
10326 if (!cfg)
10327 continue;
10328
10329 method = cfg->orig_method;
10330
10331 mono_json_writer_indent (&writer);
10332 mono_json_writer_object_begin(&writer);
10333
10334 mono_json_writer_indent (&writer);
10335 mono_json_writer_object_key(&writer, "name");
10336 mono_json_writer_printf (&writer, "\"%s\",\n", method->name);
10337
10338 mono_json_writer_indent (&writer);
10339 mono_json_writer_object_key(&writer, "signature");
10340 mono_json_writer_printf (&writer, "\"%s\",\n", mono_method_get_full_name (method));
10341
10342 mono_json_writer_indent (&writer);
10343 mono_json_writer_object_key(&writer, "code_size");
10344 mono_json_writer_printf (&writer, "\"%d\",\n", cfg->code_size);
10345
10346 klass = method->klass;
10347
10348 mono_json_writer_indent (&writer);
10349 mono_json_writer_object_key(&writer, "class");
10350 mono_json_writer_printf (&writer, "\"%s\",\n", klass->name);
10351
10352 mono_json_writer_indent (&writer);
10353 mono_json_writer_object_key(&writer, "namespace");
10354 mono_json_writer_printf (&writer, "\"%s\",\n", klass->name_space);
10355
10356 mono_json_writer_indent (&writer);
10357 mono_json_writer_object_key(&writer, "wrapper_type");
10358 mono_json_writer_printf (&writer, "\"%s\",\n", get_wrapper_type_name(method->wrapper_type));
10359
10360 mono_json_writer_indent_pop (&writer);
10361 mono_json_writer_indent (&writer);
10362 mono_json_writer_object_end (&writer);
10363 mono_json_writer_printf (&writer, ",\n");
10364 }
10365
10366 mono_json_writer_indent_pop (&writer);
10367 mono_json_writer_indent (&writer);
10368 mono_json_writer_array_end (&writer);
10369 mono_json_writer_printf (&writer, ",\n");
10370
10371 // PLT entries
10372 #ifdef DUMP_PLT
10373 mono_json_writer_indent_push (&writer);
10374 mono_json_writer_indent (&writer);
10375 mono_json_writer_object_key(&writer, "plt");
10376 mono_json_writer_array_begin (&writer);
10377
10378 for (i = 0; i < acfg->plt_offset; ++i) {
10379 MonoPltEntry *plt_entry = NULL;
10380 MonoJumpInfo *ji;
10381
10382 if (i == 0)
10383 /*
10384 * The first plt entry is unused.
10385 */
10386 continue;
10387
10388 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
10389 ji = plt_entry->ji;
10390
10391 mono_json_writer_indent (&writer);
10392 mono_json_writer_printf (&writer, "{ ");
10393 mono_json_writer_object_key(&writer, "symbol");
10394 mono_json_writer_printf (&writer, "\"%s\" },\n", plt_entry->symbol);
10395 }
10396
10397 mono_json_writer_indent_pop (&writer);
10398 mono_json_writer_indent (&writer);
10399 mono_json_writer_array_end (&writer);
10400 mono_json_writer_printf (&writer, ",\n");
10401 #endif
10402
10403 // GOT entries
10404 #ifdef DUMP_GOT
10405 mono_json_writer_indent_push (&writer);
10406 mono_json_writer_indent (&writer);
10407 mono_json_writer_object_key(&writer, "got");
10408 mono_json_writer_array_begin (&writer);
10409
10410 mono_json_writer_indent_push (&writer);
10411 for (i = 0; i < acfg->got_info.got_patches->len; ++i) {
10412 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_info.got_patches, i);
10413
10414 mono_json_writer_indent (&writer);
10415 mono_json_writer_printf (&writer, "{ ");
10416 mono_json_writer_object_key(&writer, "patch_name");
10417 mono_json_writer_printf (&writer, "\"%s\" },\n", get_patch_name (ji->type));
10418 }
10419
10420 mono_json_writer_indent_pop (&writer);
10421 mono_json_writer_indent (&writer);
10422 mono_json_writer_array_end (&writer);
10423 mono_json_writer_printf (&writer, ",\n");
10424 #endif
10425
10426 mono_json_writer_indent_pop (&writer);
10427 mono_json_writer_indent (&writer);
10428 mono_json_writer_object_end (&writer);
10429
10430 dumpname = g_strdup_printf ("%s.json", g_path_get_basename (acfg->image->name));
10431 dumpfile = fopen (dumpname, "w+");
10432 g_free (dumpname);
10433
10434 fprintf (dumpfile, "%s", writer.text->str);
10435 fclose (dumpfile);
10436
10437 mono_json_writer_destroy (&writer);
10438 }
10439
10440 static const char *preinited_jit_icalls[] = {
10441 "mono_aot_init_llvm_method",
10442 "mono_aot_init_gshared_method_this",
10443 "mono_aot_init_gshared_method_mrgctx",
10444 "mono_aot_init_gshared_method_vtable",
10445 "mono_llvm_throw_corlib_exception",
10446 "mono_init_vtable_slot",
10447 "mono_helper_ldstr_mscorlib"
10448 };
10449
10450 static void
10451 add_preinit_got_slots (MonoAotCompile *acfg)
10452 {
10453 MonoJumpInfo *ji;
10454 int i;
10455
10456 /*
10457 * Allocate the first few GOT entries to information which is needed frequently, or it is needed
10458 * during method initialization etc.
10459 */
10460
10461 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10462 ji->type = MONO_PATCH_INFO_IMAGE;
10463 ji->data.image = acfg->image;
10464 get_got_offset (acfg, FALSE, ji);
10465 get_got_offset (acfg, TRUE, ji);
10466
10467 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10468 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
10469 get_got_offset (acfg, FALSE, ji);
10470 get_got_offset (acfg, TRUE, ji);
10471
10472 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10473 ji->type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
10474 get_got_offset (acfg, FALSE, ji);
10475 get_got_offset (acfg, TRUE, ji);
10476
10477 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10478 ji->type = MONO_PATCH_INFO_GC_NURSERY_START;
10479 get_got_offset (acfg, FALSE, ji);
10480 get_got_offset (acfg, TRUE, ji);
10481
10482 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10483 ji->type = MONO_PATCH_INFO_JIT_TLS_ID;
10484 get_got_offset (acfg, FALSE, ji);
10485 get_got_offset (acfg, TRUE, ji);
10486
10487 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10488 ji->type = MONO_PATCH_INFO_AOT_MODULE;
10489 get_got_offset (acfg, FALSE, ji);
10490 get_got_offset (acfg, TRUE, ji);
10491
10492 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10493 ji->type = MONO_PATCH_INFO_GC_NURSERY_BITS;
10494 get_got_offset (acfg, FALSE, ji);
10495 get_got_offset (acfg, TRUE, ji);
10496
10497 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10498 ji->type = MONO_PATCH_INFO_GET_TLS_TRAMP;
10499 get_got_offset (acfg, FALSE, ji);
10500 get_got_offset (acfg, TRUE, ji);
10501
10502 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo));
10503 ji->type = MONO_PATCH_INFO_JIT_THREAD_ATTACH;
10504 get_got_offset (acfg, FALSE, ji);
10505 get_got_offset (acfg, TRUE, ji);
10506
10507 for (i = 0; i < sizeof (preinited_jit_icalls) / sizeof (char*); ++i) {
10508 ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
10509 ji->type = MONO_PATCH_INFO_INTERNAL_METHOD;
10510 ji->data.name = preinited_jit_icalls [i];
10511 get_got_offset (acfg, FALSE, ji);
10512 get_got_offset (acfg, TRUE, ji);
10513 }
10514
10515 acfg->nshared_got_entries = acfg->got_offset;
10516 }
10517
10518 int
10519 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
10520 {
10521 MonoImage *image = ass->image;
10522 int i, res;
10523 gint64 all_sizes;
10524 MonoAotCompile *acfg;
10525 char *outfile_name, *tmp_outfile_name, *p;
10526 char llvm_stats_msg [256];
10527 TV_DECLARE (atv);
10528 TV_DECLARE (btv);
10529
10530 acfg = acfg_create (ass, opts);
10531
10532 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
10533 acfg->aot_opts.write_symbols = TRUE;
10534 acfg->aot_opts.ntrampolines = 4096;
10535 acfg->aot_opts.nrgctx_trampolines = 4096;
10536 acfg->aot_opts.nimt_trampolines = 512;
10537 acfg->aot_opts.nrgctx_fetch_trampolines = 128;
10538 acfg->aot_opts.ngsharedvt_arg_trampolines = 512;
10539 acfg->aot_opts.llvm_path = g_strdup ("");
10540 acfg->aot_opts.temp_path = g_strdup ("");
10541 #ifdef MONOTOUCH
10542 acfg->aot_opts.use_trampolines_page = TRUE;
10543 #endif
10544
10545 mono_aot_parse_options (aot_options, &acfg->aot_opts);
10546
10547 if (acfg->aot_opts.logfile) {
10548 acfg->logfile = fopen (acfg->aot_opts.logfile, "a+");
10549 }
10550
10551 if (acfg->aot_opts.data_outfile) {
10552 acfg->data_outfile = fopen (acfg->aot_opts.data_outfile, "w+");
10553 if (!acfg->data_outfile) {
10554 aot_printerrf (acfg, "Unable to create file '%s': %s\n", acfg->aot_opts.data_outfile, strerror (errno));
10555 return 1;
10556 }
10557 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_SEPARATE_DATA);
10558 }
10559
10560 //acfg->aot_opts.print_skipped_methods = TRUE;
10561
10562 #if !defined(MONO_ARCH_GSHAREDVT_SUPPORTED)
10563 if (acfg->opts & MONO_OPT_GSHAREDVT) {
10564 aot_printerrf (acfg, "-O=gsharedvt not supported on this platform.\n");
10565 return 1;
10566 }
10567 if (acfg->aot_opts.llvm_only) {
10568 aot_printerrf (acfg, "--aot=llvmonly requires a runtime that supports gsharedvt.\n");
10569 return 1;
10570 }
10571 #else
10572 if (acfg->aot_opts.llvm_only || mono_aot_mode_is_full (&acfg->aot_opts) || mono_aot_mode_is_hybrid (&acfg->aot_opts))
10573 acfg->opts |= MONO_OPT_GSHAREDVT;
10574 #endif
10575
10576 #if !defined(ENABLE_LLVM)
10577 if (acfg->aot_opts.llvm_only) {
10578 aot_printerrf (acfg, "--aot=llvmonly requires a runtime compiled with llvm support.\n");
10579 return 1;
10580 }
10581 #endif
10582
10583 if (acfg->opts & MONO_OPT_GSHAREDVT)
10584 mono_set_generic_sharing_vt_supported (TRUE);
10585
10586 aot_printf (acfg, "Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
10587
10588 generate_aotid ((guint8*) &acfg->image->aotid);
10589
10590 char *aotid = mono_guid_to_string (acfg->image->aotid);
10591 aot_printf (acfg, "AOTID %s\n", aotid);
10592 g_free (aotid);
10593
10594 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
10595 if (mono_aot_mode_is_full (&acfg->aot_opts)) {
10596 aot_printerrf (acfg, "--aot=full is not supported on this platform.\n");
10597 return 1;
10598 }
10599 #endif
10600
10601 if (acfg->aot_opts.direct_pinvoke && !acfg->aot_opts.static_link) {
10602 aot_printerrf (acfg, "The 'direct-pinvoke' AOT option also requires the 'static' AOT option.\n");
10603 return 1;
10604 }
10605
10606 if (acfg->aot_opts.static_link)
10607 acfg->aot_opts.asm_writer = TRUE;
10608
10609 if (acfg->aot_opts.soft_debug) {
10610 MonoDebugOptions *opt = mini_get_debug_options ();
10611
10612 opt->mdb_optimizations = TRUE;
10613 opt->gen_sdb_seq_points = TRUE;
10614
10615 if (!mono_debug_enabled ()) {
10616 aot_printerrf (acfg, "The soft-debug AOT option requires the --debug option.\n");
10617 return 1;
10618 }
10619 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_DEBUG);
10620 }
10621
10622 if (mono_use_llvm || acfg->aot_opts.llvm) {
10623 acfg->llvm = TRUE;
10624 acfg->aot_opts.asm_writer = TRUE;
10625 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_WITH_LLVM);
10626
10627 if (acfg->aot_opts.soft_debug) {
10628 aot_printerrf (acfg, "The 'soft-debug' option is not supported when compiling with LLVM.\n");
10629 return 1;
10630 }
10631
10632 mini_llvm_init ();
10633
10634 if (acfg->aot_opts.asm_only && !acfg->aot_opts.llvm_outfile) {
10635 aot_printerrf (acfg, "Compiling with LLVM and the asm-only option requires the llvm-outfile= option.\n");
10636 return 1;
10637 }
10638 }
10639
10640 if (mono_aot_mode_is_full (&acfg->aot_opts))
10641 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_FULL_AOT);
10642
10643 if (mono_threads_is_coop_enabled ())
10644 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_SAFEPOINTS);
10645
10646 if (acfg->aot_opts.instances_logfile_path) {
10647 acfg->instances_logfile = fopen (acfg->aot_opts.instances_logfile_path, "w");
10648 if (!acfg->instances_logfile) {
10649 aot_printerrf (acfg, "Unable to create logfile: '%s'.\n", acfg->aot_opts.instances_logfile_path);
10650 return 1;
10651 }
10652 }
10653
10654 load_profile_files (acfg);
10655
10656 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.ntrampolines : 0;
10657 #ifdef MONO_ARCH_GSHARED_SUPPORTED
10658 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.nrgctx_trampolines : 0;
10659 #endif
10660 acfg->num_trampolines [MONO_AOT_TRAMP_IMT] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.nimt_trampolines : 0;
10661 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
10662 if (acfg->opts & MONO_OPT_GSHAREDVT)
10663 acfg->num_trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.ngsharedvt_arg_trampolines : 0;
10664 #endif
10665
10666 acfg->temp_prefix = mono_img_writer_get_temp_label_prefix (NULL);
10667
10668 arch_init (acfg);
10669
10670 if (mono_use_llvm || acfg->aot_opts.llvm) {
10671
10672 /*
10673 * Emit all LLVM code into a separate assembly/object file and link with it
10674 * normally.
10675 */
10676 if (!acfg->aot_opts.asm_only && acfg->llvm_owriter_supported) {
10677 acfg->llvm_owriter = TRUE;
10678 } else if (acfg->aot_opts.llvm_outfile) {
10679 int len = strlen (acfg->aot_opts.llvm_outfile);
10680
10681 if (len >= 2 && acfg->aot_opts.llvm_outfile [len - 2] == '.' && acfg->aot_opts.llvm_outfile [len - 1] == 'o')
10682 acfg->llvm_owriter = TRUE;
10683 }
10684 }
10685
10686 if (acfg->llvm && acfg->thumb_mixed)
10687 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_LLVM_THUMB);
10688 if (acfg->aot_opts.llvm_only)
10689 acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_LLVM_ONLY);
10690
10691 acfg->assembly_name_sym = g_strdup (acfg->image->assembly->aname.name);
10692 /* Get rid of characters which cannot occur in symbols */
10693 for (p = acfg->assembly_name_sym; *p; ++p) {
10694 if (!(isalnum (*p) || *p == '_'))
10695 *p = '_';
10696 }
10697
10698 acfg->global_prefix = g_strdup_printf ("mono_aot_%s", acfg->assembly_name_sym);
10699 acfg->plt_symbol = g_strdup_printf ("%s_plt", acfg->global_prefix);
10700 acfg->got_symbol = g_strdup_printf ("%s_got", acfg->global_prefix);
10701 if (acfg->llvm) {
10702 acfg->llvm_got_symbol = g_strdup_printf ("%s_llvm_got", acfg->global_prefix);
10703 acfg->llvm_eh_frame_symbol = g_strdup_printf ("%s_eh_frame", acfg->global_prefix);
10704 }
10705
10706 acfg->method_index = 1;
10707
10708 if (mono_aot_mode_is_full (&acfg->aot_opts) || mono_aot_mode_is_hybrid (&acfg->aot_opts))
10709 mono_set_partial_sharing_supported (TRUE);
10710
10711 res = collect_methods (acfg);
10712 if (!res)
10713 return 1;
10714
10715 acfg->cfgs_size = acfg->methods->len + 32;
10716 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
10717
10718 /* PLT offset 0 is reserved for the PLT trampoline */
10719 acfg->plt_offset = 1;
10720 add_preinit_got_slots (acfg);
10721
10722 #ifdef ENABLE_LLVM
10723 if (acfg->llvm) {
10724 llvm_acfg = acfg;
10725 mono_llvm_create_aot_module (acfg->image->assembly, acfg->global_prefix, TRUE, acfg->aot_opts.static_link, acfg->aot_opts.llvm_only);
10726 }
10727 #endif
10728
10729 TV_GETTIME (atv);
10730
10731 compile_methods (acfg);
10732
10733 TV_GETTIME (btv);
10734
10735 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
10736
10737 TV_GETTIME (atv);
10738
10739 #ifdef ENABLE_LLVM
10740 if (acfg->llvm) {
10741 if (acfg->aot_opts.asm_only) {
10742 if (acfg->aot_opts.outfile) {
10743 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
10744 acfg->tmpbasename = g_strdup (acfg->tmpfname);
10745 } else {
10746 acfg->tmpbasename = g_strdup_printf ("%s", acfg->image->name);
10747 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename);
10748 }
10749 g_assert (acfg->aot_opts.llvm_outfile);
10750 acfg->llvm_sfile = g_strdup (acfg->aot_opts.llvm_outfile);
10751 if (acfg->llvm_owriter)
10752 acfg->llvm_ofile = g_strdup (acfg->aot_opts.llvm_outfile);
10753 else
10754 acfg->llvm_sfile = g_strdup (acfg->aot_opts.llvm_outfile);
10755 } else {
10756 acfg->tmpbasename = (strcmp (acfg->aot_opts.temp_path, "") == 0) ?
10757 g_strdup_printf ("%s", "temp") :
10758 g_build_filename (acfg->aot_opts.temp_path, "temp", NULL);
10759
10760 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename);
10761 acfg->llvm_sfile = g_strdup_printf ("%s-llvm.s", acfg->tmpbasename);
10762 acfg->llvm_ofile = g_strdup_printf ("%s-llvm.o", acfg->tmpbasename);
10763 }
10764 }
10765 #endif
10766
10767 if (acfg->aot_opts.asm_only && !acfg->aot_opts.llvm_only) {
10768 if (acfg->aot_opts.outfile)
10769 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
10770 else
10771 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
10772 acfg->fp = fopen (acfg->tmpfname, "w+");
10773 } else {
10774 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
10775 acfg->fp = fdopen (i, "w+");
10776 }
10777 if (acfg->fp == 0 && !acfg->aot_opts.llvm_only) {
10778 aot_printerrf (acfg, "Unable to open file '%s': %s\n", acfg->tmpfname, strerror (errno));
10779 return 1;
10780 }
10781 if (acfg->fp)
10782 acfg->w = mono_img_writer_create (acfg->fp, FALSE);
10783
10784 tmp_outfile_name = NULL;
10785 outfile_name = NULL;
10786
10787 /* Compute symbols for methods */
10788 for (i = 0; i < acfg->nmethods; ++i) {
10789 if (acfg->cfgs [i]) {
10790 MonoCompile *cfg = acfg->cfgs [i];
10791 int method_index = get_method_index (acfg, cfg->orig_method);
10792
10793 if (COMPILE_LLVM (cfg))
10794 cfg->asm_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, cfg->llvm_method_name);
10795 else if (acfg->global_symbols || acfg->llvm)
10796 cfg->asm_symbol = get_debug_sym (cfg->orig_method, "", acfg->method_label_hash);
10797 else
10798 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, acfg->llvm_label_prefix, method_index);
10799 cfg->asm_debug_symbol = cfg->asm_symbol;
10800 }
10801 }
10802
10803 if (acfg->aot_opts.dwarf_debug && acfg->aot_opts.gnu_asm) {
10804 /*
10805 * CLANG supports GAS .file/.loc directives, so emit line number information this way
10806 */
10807 acfg->gas_line_numbers = TRUE;
10808 }
10809
10810 #ifdef EMIT_DWARF_INFO
10811 if ((!acfg->aot_opts.nodebug || acfg->aot_opts.dwarf_debug) && acfg->has_jitted_code) {
10812 if (acfg->aot_opts.dwarf_debug && !mono_debug_enabled ()) {
10813 aot_printerrf (acfg, "The dwarf AOT option requires the --debug option.\n");
10814 return 1;
10815 }
10816 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, !acfg->gas_line_numbers);
10817 }
10818 #endif /* EMIT_DWARF_INFO */
10819
10820 if (acfg->w)
10821 mono_img_writer_emit_start (acfg->w);
10822
10823 if (acfg->dwarf)
10824 mono_dwarf_writer_emit_base_info (acfg->dwarf, g_path_get_basename (acfg->image->name), mono_unwind_get_cie_program ());
10825
10826 emit_code (acfg);
10827
10828 emit_info (acfg);
10829
10830 emit_extra_methods (acfg);
10831
10832 emit_trampolines (acfg);
10833
10834 emit_class_name_table (acfg);
10835
10836 emit_got_info (acfg, FALSE);
10837 if (acfg->llvm)
10838 emit_got_info (acfg, TRUE);
10839
10840 emit_exception_info (acfg);
10841
10842 emit_unwind_info (acfg);
10843
10844 emit_class_info (acfg);
10845
10846 emit_plt (acfg);
10847
10848 emit_image_table (acfg);
10849
10850 emit_got (acfg);
10851
10852 {
10853 /*
10854 * The managed allocators are GC specific, so can't use an AOT image created by one GC
10855 * in another.
10856 */
10857 const char *gc_name = mono_gc_get_gc_name ();
10858 acfg->gc_name_offset = add_to_blob (acfg, (guint8*)gc_name, strlen (gc_name) + 1);
10859 }
10860
10861 emit_blob (acfg);
10862
10863 emit_objc_selectors (acfg);
10864
10865 emit_globals (acfg);
10866
10867 emit_file_info (acfg);
10868
10869 emit_library_info (acfg);
10870
10871 if (acfg->dwarf) {
10872 emit_dwarf_info (acfg);
10873 mono_dwarf_writer_close (acfg->dwarf);
10874 }
10875
10876 emit_mem_end (acfg);
10877
10878 if (acfg->need_pt_gnu_stack) {
10879 /* This is required so the .so doesn't have an executable stack */
10880 /* The bin writer already emits this */
10881 fprintf (acfg->fp, "\n.section .note.GNU-stack,\"\",@progbits\n");
10882 }
10883
10884 if (acfg->aot_opts.data_outfile)
10885 fclose (acfg->data_outfile);
10886
10887 #ifdef ENABLE_LLVM
10888 if (acfg->llvm) {
10889 gboolean res;
10890
10891 res = emit_llvm_file (acfg);
10892 if (!res)
10893 return 1;
10894 }
10895 #endif
10896
10897 TV_GETTIME (btv);
10898
10899 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
10900
10901 if (acfg->llvm)
10902 sprintf (llvm_stats_msg, ", LLVM: %d (%d%%)", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
10903 else
10904 strcpy (llvm_stats_msg, "");
10905
10906 all_sizes = acfg->stats.code_size + acfg->stats.info_size + acfg->stats.ex_info_size + acfg->stats.unwind_info_size + acfg->stats.class_info_size + acfg->stats.got_info_size + acfg->stats.offsets_size + acfg->stats.plt_size;
10907
10908 aot_printf (acfg, "Code: %d(%d%%) Info: %d(%d%%) Ex Info: %d(%d%%) Unwind Info: %d(%d%%) Class Info: %d(%d%%) PLT: %d(%d%%) GOT Info: %d(%d%%) Offsets: %d(%d%%) GOT: %d\n",
10909 (int)acfg->stats.code_size, (int)(acfg->stats.code_size * 100 / all_sizes),
10910 (int)acfg->stats.info_size, (int)(acfg->stats.info_size * 100 / all_sizes),
10911 (int)acfg->stats.ex_info_size, (int)(acfg->stats.ex_info_size * 100 / all_sizes),
10912 (int)acfg->stats.unwind_info_size, (int)(acfg->stats.unwind_info_size * 100 / all_sizes),
10913 (int)acfg->stats.class_info_size, (int)(acfg->stats.class_info_size * 100 / all_sizes),
10914 acfg->stats.plt_size ? (int)acfg->stats.plt_size : (int)acfg->plt_offset, acfg->stats.plt_size ? (int)(acfg->stats.plt_size * 100 / all_sizes) : 0,
10915 (int)acfg->stats.got_info_size, (int)(acfg->stats.got_info_size * 100 / all_sizes),
10916 (int)acfg->stats.offsets_size, (int)(acfg->stats.offsets_size * 100 / all_sizes),
10917 (int)(acfg->got_offset * sizeof (gpointer)));
10918 aot_printf (acfg, "Compiled: %d/%d (%d%%)%s, No GOT slots: %d (%d%%), Direct calls: %d (%d%%)\n",
10919 acfg->stats.ccount, acfg->stats.mcount, acfg->stats.mcount ? (acfg->stats.ccount * 100) / acfg->stats.mcount : 100,
10920 llvm_stats_msg,
10921 acfg->stats.methods_without_got_slots, acfg->stats.mcount ? (acfg->stats.methods_without_got_slots * 100) / acfg->stats.mcount : 100,
10922 acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
10923 if (acfg->stats.genericcount)
10924 aot_printf (acfg, "%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
10925 if (acfg->stats.abscount)
10926 aot_printf (acfg, "%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
10927 if (acfg->stats.lmfcount)
10928 aot_printf (acfg, "%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
10929 if (acfg->stats.ocount)
10930 aot_printf (acfg, "%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
10931
10932 TV_GETTIME (atv);
10933 if (acfg->w) {
10934 res = mono_img_writer_emit_writeout (acfg->w);
10935 if (res != 0) {
10936 acfg_free (acfg);
10937 return res;
10938 }
10939 res = compile_asm (acfg);
10940 if (res != 0) {
10941 acfg_free (acfg);
10942 return res;
10943 }
10944 }
10945 TV_GETTIME (btv);
10946 acfg->stats.link_time = TV_ELAPSED (atv, btv);
10947
10948 if (acfg->aot_opts.stats) {
10949 int i;
10950
10951 aot_printf (acfg, "GOT slot distribution:\n");
10952 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
10953 if (acfg->stats.got_slot_types [i])
10954 aot_printf (acfg, "\t%s: %d (%d)\n", get_patch_name (i), acfg->stats.got_slot_types [i], acfg->stats.got_slot_info_sizes [i]);
10955 aot_printf (acfg, "\nMethod stats:\n");
10956 aot_printf (acfg, "\tNormal: %d\n", acfg->stats.method_categories [METHOD_CAT_NORMAL]);
10957 aot_printf (acfg, "\tInstance: %d\n", acfg->stats.method_categories [METHOD_CAT_INST]);
10958 aot_printf (acfg, "\tGSharedvt: %d\n", acfg->stats.method_categories [METHOD_CAT_GSHAREDVT]);
10959 aot_printf (acfg, "\tWrapper: %d\n", acfg->stats.method_categories [METHOD_CAT_WRAPPER]);
10960 }
10961
10962 aot_printf (acfg, "JIT time: %d ms, Generation time: %d ms, Assembly+Link time: %d ms.\n", acfg->stats.jit_time / 1000, acfg->stats.gen_time / 1000, acfg->stats.link_time / 1000);
10963
10964 if (acfg->aot_opts.dump_json)
10965 aot_dump (acfg);
10966
10967 acfg_free (acfg);
10968
10969 return 0;
10970 }
10971
10972 #else
10973
10974 /* AOT disabled */
10975
10976 void*
10977 mono_aot_readonly_field_override (MonoClassField *field)
10978 {
10979 return NULL;
10980 }
10981
10982 int
10983 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
10984 {
10985 return 0;
10986 }
10987
10988 gboolean
10989 mono_aot_is_shared_got_offset (int offset)
10990 {
10991 return FALSE;
10992 }
10993
10994 #endif
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