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update rx (mobile builds).
[mono-project.git] / mono / mini / mini.c
blob948507d96741b4c1ff80c212652383fbdbd7a237
1 /*
2 * mini.c: The new Mono code generator.
3 *
4 * Authors:
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
7 *
8 * Copyright 2002-2003 Ximian, Inc.
9 * Copyright 2003-2010 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 */
12
13 #define MONO_LLVM_IN_MINI 1
14 #include <config.h>
15 #include <signal.h>
16 #ifdef HAVE_ALLOCA_H
17 #include <alloca.h>
18 #endif
19 #ifdef HAVE_UNISTD_H
20 #include <unistd.h>
21 #endif
22 #include <math.h>
23 #ifdef HAVE_SYS_TIME_H
24 #include <sys/time.h>
25 #endif
26
27 #include <mono/utils/memcheck.h>
28
29 #include <mono/metadata/assembly.h>
30 #include <mono/metadata/loader.h>
31 #include <mono/metadata/tabledefs.h>
32 #include <mono/metadata/class.h>
33 #include <mono/metadata/object.h>
34 #include <mono/metadata/tokentype.h>
35 #include <mono/metadata/tabledefs.h>
36 #include <mono/metadata/threads.h>
37 #include <mono/metadata/appdomain.h>
38 #include <mono/metadata/debug-helpers.h>
39 #include <mono/io-layer/io-layer.h>
40 #include "mono/metadata/profiler.h"
41 #include <mono/metadata/profiler-private.h>
42 #include <mono/metadata/mono-config.h>
43 #include <mono/metadata/environment.h>
44 #include <mono/metadata/mono-debug.h>
45 #include <mono/metadata/gc-internal.h>
46 #include <mono/metadata/threads-types.h>
47 #include <mono/metadata/verify.h>
48 #include <mono/metadata/verify-internals.h>
49 #include <mono/metadata/mempool-internals.h>
50 #include <mono/metadata/attach.h>
51 #include <mono/metadata/runtime.h>
52 #include <mono/utils/mono-math.h>
53 #include <mono/utils/mono-compiler.h>
54 #include <mono/utils/mono-counters.h>
55 #include <mono/utils/mono-logger-internal.h>
56 #include <mono/utils/mono-mmap.h>
57 #include <mono/utils/mono-tls.h>
58 #include <mono/utils/dtrace.h>
59
60 #include "mini.h"
61 #include "mini-llvm.h"
62 #include "tasklets.h"
63 #include <string.h>
64 #include <ctype.h>
65 #include "trace.h"
66 #include "version.h"
67
68 #include "jit-icalls.h"
69
70 #include "debug-mini.h"
71 #include "mini-gc.h"
72 #include "debugger-agent.h"
73
74 static gpointer mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex);
75
76
77 static guint32 default_opt = 0;
78 static gboolean default_opt_set = FALSE;
79
80 MonoNativeTlsKey mono_jit_tls_id;
81
82 #ifdef MONO_HAVE_FAST_TLS
83 MONO_FAST_TLS_DECLARE(mono_jit_tls);
84 #endif
85
86 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
87 #define MONO_ARCH_MONITOR_ENTER_ADJUSTMENT 1
88 #endif
89
90 MonoTraceSpec *mono_jit_trace_calls = NULL;
91 gboolean mono_compile_aot = FALSE;
92 /* If this is set, no code is generated dynamically, everything is taken from AOT files */
93 gboolean mono_aot_only = FALSE;
94 /* Whenever to use IMT */
95 #ifdef MONO_ARCH_HAVE_IMT
96 gboolean mono_use_imt = TRUE;
97 #else
98 gboolean mono_use_imt = FALSE;
99 #endif
100 MonoMethodDesc *mono_inject_async_exc_method = NULL;
101 int mono_inject_async_exc_pos;
102 MonoMethodDesc *mono_break_at_bb_method = NULL;
103 int mono_break_at_bb_bb_num;
104 gboolean mono_do_x86_stack_align = TRUE;
105 const char *mono_build_date;
106 gboolean mono_do_signal_chaining;
107 static gboolean mono_using_xdebug;
108 static int mini_verbose = 0;
109
110 /*
111 * This flag controls whenever the runtime uses LLVM for JIT compilation, and whenever
112 * it can load AOT code compiled by LLVM.
113 */
114 gboolean mono_use_llvm = FALSE;
115
116 #define mono_jit_lock() EnterCriticalSection (&jit_mutex)
117 #define mono_jit_unlock() LeaveCriticalSection (&jit_mutex)
118 static CRITICAL_SECTION jit_mutex;
119
120 static MonoCodeManager *global_codeman = NULL;
121
122 static GHashTable *jit_icall_name_hash = NULL;
123
124 static MonoDebugOptions debug_options;
125
126 #ifdef VALGRIND_JIT_REGISTER_MAP
127 static int valgrind_register = 0;
128 #endif
129
130 /*
131 * Table written to by the debugger with a 1-based index into the
132 * mono_breakpoint_info table, which contains changes made to
133 * the JIT instructions by the debugger.
134 */
135 gssize
136 mono_breakpoint_info_index [MONO_BREAKPOINT_ARRAY_SIZE];
137
138 /* Whenever to check for pending exceptions in managed-to-native wrappers */
139 gboolean check_for_pending_exc = TRUE;
140
141 /* Whenever to disable passing/returning small valuetypes in registers for managed methods */
142 gboolean disable_vtypes_in_regs = FALSE;
143
144 gboolean mono_dont_free_global_codeman;
145
146 gpointer
147 mono_realloc_native_code (MonoCompile *cfg)
148 {
149 #if defined(__default_codegen__)
150 return g_realloc (cfg->native_code, cfg->code_size);
151 #elif defined(__native_client_codegen__)
152 guint old_padding;
153 gpointer native_code;
154 guint alignment_check;
155
156 /* Save the old alignment offset so we can re-align after the realloc. */
157 old_padding = (guint)(cfg->native_code - cfg->native_code_alloc);
158
159 cfg->native_code_alloc = g_realloc ( cfg->native_code_alloc,
160 cfg->code_size + kNaClAlignment );
161
162 /* Align native_code to next nearest kNaClAlignment byte. */
163 native_code = (guint)cfg->native_code_alloc + kNaClAlignment;
164 native_code = (guint)native_code & ~kNaClAlignmentMask;
165
166 /* Shift the data to be 32-byte aligned again. */
167 memmove (native_code, cfg->native_code_alloc + old_padding, cfg->code_size);
168
169 alignment_check = (guint)native_code & kNaClAlignmentMask;
170 g_assert (alignment_check == 0);
171 return native_code;
172 #else
173 g_assert_not_reached ();
174 return cfg->native_code;
175 #endif
176 }
177
178 #ifdef __native_client_codegen__
179
180 /* Prevent instructions from straddling a 32-byte alignment boundary. */
181 /* Instructions longer than 32 bytes must be aligned internally. */
182 /* IN: pcode, instlen */
183 /* OUT: pcode */
184 void mono_nacl_align_inst(guint8 **pcode, int instlen) {
185 int space_in_block;
186
187 space_in_block = kNaClAlignment - ((uintptr_t)(*pcode) & kNaClAlignmentMask);
188
189 if (G_UNLIKELY (instlen >= kNaClAlignment)) {
190 g_assert_not_reached();
191 } else if (instlen > space_in_block) {
192 *pcode = mono_arch_nacl_pad(*pcode, space_in_block);
193 }
194 }
195
196 /* Move emitted call sequence to the end of a kNaClAlignment-byte block. */
197 /* IN: start pointer to start of call sequence */
198 /* IN: pcode pointer to end of call sequence (current "IP") */
199 /* OUT: start pointer to the start of the call sequence after padding */
200 /* OUT: pcode pointer to the end of the call sequence after padding */
201 void mono_nacl_align_call(guint8 **start, guint8 **pcode) {
202 const size_t MAX_NACL_CALL_LENGTH = kNaClAlignment;
203 guint8 copy_of_call[MAX_NACL_CALL_LENGTH];
204 guint8 *temp;
205
206 const size_t length = (size_t)((*pcode)-(*start));
207 g_assert(length < MAX_NACL_CALL_LENGTH);
208
209 memcpy(copy_of_call, *start, length);
210 temp = mono_nacl_pad_call(*start, (guint8)length);
211 memcpy(temp, copy_of_call, length);
212 (*start) = temp;
213 (*pcode) = temp + length;
214 }
215
216 /* mono_nacl_pad_call(): Insert padding for Native Client call instructions */
217 /* code pointer to buffer for emitting code */
218 /* ilength length of call instruction */
219 guint8 *mono_nacl_pad_call(guint8 *code, guint8 ilength) {
220 int freeSpaceInBlock = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
221 int padding = freeSpaceInBlock - ilength;
222
223 if (padding < 0) {
224 /* There isn't enough space in this block for the instruction. */
225 /* Fill this block and start a new one. */
226 code = mono_arch_nacl_pad(code, freeSpaceInBlock);
227 freeSpaceInBlock = kNaClAlignment;
228 padding = freeSpaceInBlock - ilength;
229 }
230 g_assert(ilength > 0);
231 g_assert(padding >= 0);
232 g_assert(padding < kNaClAlignment);
233 if (0 == padding) return code;
234 return mono_arch_nacl_pad(code, padding);
235 }
236
237 guint8 *mono_nacl_align(guint8 *code) {
238 int padding = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
239 if (padding != kNaClAlignment) code = mono_arch_nacl_pad(code, padding);
240 return code;
241 }
242
243 void mono_nacl_fix_patches(const guint8 *code, MonoJumpInfo *ji)
244 {
245 MonoJumpInfo *patch_info;
246 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
247 unsigned char *ip = patch_info->ip.i + code;
248 ip = mono_arch_nacl_skip_nops(ip);
249 patch_info->ip.i = ip - code;
250 }
251 }
252 #endif /* __native_client_codegen__ */
253
254 gboolean
255 mono_running_on_valgrind (void)
256 {
257 if (RUNNING_ON_VALGRIND){
258 #ifdef VALGRIND_JIT_REGISTER_MAP
259 valgrind_register = TRUE;
260 #endif
261 return TRUE;
262 } else
263 return FALSE;
264 }
265
266 typedef struct {
267 MonoExceptionClause *clause;
268 MonoBasicBlock *basic_block;
269 int start_offset;
270 } TryBlockHole;
271
272 typedef struct {
273 void *ip;
274 MonoMethod *method;
275 } FindTrampUserData;
276
277 static void
278 find_tramp (gpointer key, gpointer value, gpointer user_data)
279 {
280 FindTrampUserData *ud = (FindTrampUserData*)user_data;
281
282 if (value == ud->ip)
283 ud->method = (MonoMethod*)key;
284 }
285
286 /* debug function */
287 G_GNUC_UNUSED static char*
288 get_method_from_ip (void *ip)
289 {
290 MonoJitInfo *ji;
291 char *method;
292 char *res;
293 MonoDomain *domain = mono_domain_get ();
294 MonoDebugSourceLocation *location;
295 FindTrampUserData user_data;
296
297 if (!domain)
298 domain = mono_get_root_domain ();
299
300 ji = mono_jit_info_table_find (domain, ip);
301 if (!ji) {
302 user_data.ip = ip;
303 user_data.method = NULL;
304 mono_domain_lock (domain);
305 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
306 mono_domain_unlock (domain);
307 if (user_data.method) {
308 char *mname = mono_method_full_name (user_data.method, TRUE);
309 res = g_strdup_printf ("<%p - JIT trampoline for %s>", ip, mname);
310 g_free (mname);
311 return res;
312 }
313 else
314 return NULL;
315 }
316 method = mono_method_full_name (ji->method, TRUE);
317 /* FIXME: unused ? */
318 location = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
319
320 res = g_strdup_printf (" %s + 0x%x (%p %p) [%p - %s]", method, (int)((char*)ip - (char*)ji->code_start), ji->code_start, (char*)ji->code_start + ji->code_size, domain, domain->friendly_name);
321
322 mono_debug_free_source_location (location);
323 g_free (method);
324
325 return res;
326 }
327
328 /**
329 * mono_pmip:
330 * @ip: an instruction pointer address
331 *
332 * This method is used from a debugger to get the name of the
333 * method at address @ip. This routine is typically invoked from
334 * a debugger like this:
335 *
336 * (gdb) print mono_pmip ($pc)
337 *
338 * Returns: the name of the method at address @ip.
339 */
340 G_GNUC_UNUSED char *
341 mono_pmip (void *ip)
342 {
343 return get_method_from_ip (ip);
344 }
345
346 /**
347 * mono_print_method_from_ip
348 * @ip: an instruction pointer address
349 *
350 * This method is used from a debugger to get the name of the
351 * method at address @ip.
352 *
353 * This prints the name of the method at address @ip in the standard
354 * output. Unlike mono_pmip which returns a string, this routine
355 * prints the value on the standard output.
356 */
357 #ifdef __GNUC__
358 /* Prevent the linker from optimizing this away in embedding setups to help debugging */
359 __attribute__((used))
360 #endif
361 void
362 mono_print_method_from_ip (void *ip)
363 {
364 MonoJitInfo *ji;
365 char *method;
366 MonoDebugSourceLocation *source;
367 MonoDomain *domain = mono_domain_get ();
368 MonoDomain *target_domain = mono_domain_get ();
369 FindTrampUserData user_data;
370 MonoGenericSharingContext*gsctx;
371 const char *shared_type;
372
373 ji = mini_jit_info_table_find (domain, ip, &target_domain);
374 if (!ji) {
375 user_data.ip = ip;
376 user_data.method = NULL;
377 mono_domain_lock (domain);
378 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
379 mono_domain_unlock (domain);
380 if (user_data.method) {
381 char *mname = mono_method_full_name (user_data.method, TRUE);
382 printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
383 g_free (mname);
384 }
385 else
386 g_print ("No method at %p\n", ip);
387 fflush (stdout);
388 return;
389 }
390 method = mono_method_full_name (ji->method, TRUE);
391 source = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), target_domain);
392
393 gsctx = mono_jit_info_get_generic_sharing_context (ji);
394 shared_type = "";
395 if (gsctx) {
396 if (gsctx->var_is_vt || gsctx->mvar_is_vt)
397 shared_type = "gsharedvt ";
398 else
399 shared_type = "gshared ";
400 }
401
402 g_print ("IP %p at offset 0x%x of %smethod %s (%p %p)[domain %p - %s]\n", ip, (int)((char*)ip - (char*)ji->code_start), shared_type, method, ji->code_start, (char*)ji->code_start + ji->code_size, target_domain, target_domain->friendly_name);
403
404 if (source)
405 g_print ("%s:%d\n", source->source_file, source->row);
406 fflush (stdout);
407
408 mono_debug_free_source_location (source);
409 g_free (method);
410 }
411
412 /*
413 * mono_method_same_domain:
414 *
415 * Determine whenever two compiled methods are in the same domain, thus
416 * the address of the callee can be embedded in the caller.
417 */
418 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
419 {
420 if (!caller || !callee)
421 return FALSE;
422
423 /*
424 * If the call was made from domain-neutral to domain-specific
425 * code, we can't patch the call site.
426 */
427 if (caller->domain_neutral && !callee->domain_neutral)
428 return FALSE;
429
430 if ((caller->method->klass == mono_defaults.appdomain_class) &&
431 (strstr (caller->method->name, "InvokeInDomain"))) {
432 /* The InvokeInDomain methods change the current appdomain */
433 return FALSE;
434 }
435
436 return TRUE;
437 }
438
439 /*
440 * mono_global_codeman_reserve:
441 *
442 * Allocate code memory from the global code manager.
443 */
444 void *mono_global_codeman_reserve (int size)
445 {
446 void *ptr;
447
448 if (mono_aot_only)
449 g_error ("Attempting to allocate from the global code manager while running with --aot-only.\n");
450
451 if (!global_codeman) {
452 /* This can happen during startup */
453 global_codeman = mono_code_manager_new ();
454 return mono_code_manager_reserve (global_codeman, size);
455 }
456 else {
457 mono_jit_lock ();
458 ptr = mono_code_manager_reserve (global_codeman, size);
459 mono_jit_unlock ();
460 return ptr;
461 }
462 }
463
464 #if defined(__native_client_codegen__) && defined(__native_client__)
465 /* Given the temporary buffer (allocated by mono_global_codeman_reserve) into
466 * which we are generating code, return a pointer to the destination in the
467 * dynamic code segment into which the code will be copied when
468 * mono_global_codeman_commit is called.
469 * LOCKING: Acquires the jit lock.
470 */
471 void*
472 nacl_global_codeman_get_dest (void *data)
473 {
474 void *dest;
475 mono_jit_lock ();
476 dest = nacl_code_manager_get_code_dest (global_codeman, data);
477 mono_jit_unlock ();
478 return dest;
479 }
480
481 void
482 mono_global_codeman_commit (void *data, int size, int newsize)
483 {
484 mono_jit_lock ();
485 mono_code_manager_commit (global_codeman, data, size, newsize);
486 mono_jit_unlock ();
487 }
488
489 /*
490 * Convenience function which calls mono_global_codeman_commit to validate and
491 * copy the code. The caller sets *buf_base and *buf_size to the start and size
492 * of the buffer (allocated by mono_global_codeman_reserve), and *code_end to
493 * the byte after the last instruction byte. On return, *buf_base will point to
494 * the start of the copied in the code segment, and *code_end will point after
495 * the end of the copied code.
496 */
497 void
498 nacl_global_codeman_validate (guint8 **buf_base, int buf_size, guint8 **code_end)
499 {
500 guint8 *tmp = nacl_global_codeman_get_dest (*buf_base);
501 mono_global_codeman_commit (*buf_base, buf_size, *code_end - *buf_base);
502 *code_end = tmp + (*code_end - *buf_base);
503 *buf_base = tmp;
504 }
505 #else
506 /* no-op versions of Native Client functions */
507 void*
508 nacl_global_codeman_get_dest (void *data)
509 {
510 return data;
511 }
512
513 void
514 mono_global_codeman_commit (void *data, int size, int newsize)
515 {
516 }
517
518 void
519 nacl_global_codeman_validate (guint8 **buf_base, int buf_size, guint8 **code_end)
520 {
521 }
522
523 #endif /* __native_client__ */
524
525 /**
526 * mono_create_unwind_op:
527 *
528 * Create an unwind op with the given parameters.
529 */
530 MonoUnwindOp*
531 mono_create_unwind_op (int when, int tag, int reg, int val)
532 {
533 MonoUnwindOp *op = g_new0 (MonoUnwindOp, 1);
534
535 op->op = tag;
536 op->reg = reg;
537 op->val = val;
538 op->when = when;
539
540 return op;
541 }
542
543 /**
544 * mono_emit_unwind_op:
545 *
546 * Add an unwind op with the given parameters for the list of unwind ops stored in
547 * cfg->unwind_ops.
548 */
549 void
550 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
551 {
552 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
553
554 op->op = tag;
555 op->reg = reg;
556 op->val = val;
557 op->when = when;
558
559 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
560 }
561
562 MonoJumpInfoToken *
563 mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context)
564 {
565 MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
566 res->image = image;
567 res->token = token;
568 res->has_context = context != NULL;
569 if (context)
570 memcpy (&res->context, context, sizeof (MonoGenericContext));
571
572 return res;
573 }
574
575 MonoJumpInfoToken *
576 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
577 {
578 return mono_jump_info_token_new2 (mp, image, token, NULL);
579 }
580
581 /*
582 * mono_tramp_info_create:
583 *
584 * Create a MonoTrampInfo structure from the arguments. This function assumes ownership
585 * of NAME, JI, and UNWIND_OPS.
586 */
587 MonoTrampInfo*
588 mono_tramp_info_create (const char *name, guint8 *code, guint32 code_size, MonoJumpInfo *ji, GSList *unwind_ops)
589 {
590 MonoTrampInfo *info = g_new0 (MonoTrampInfo, 1);
591
592 info->name = (char*)name;
593 info->code = code;
594 info->code_size = code_size;
595 info->ji = ji;
596 info->unwind_ops = unwind_ops;
597
598 return info;
599 }
600
601 void
602 mono_tramp_info_free (MonoTrampInfo *info)
603 {
604 GSList *l;
605
606 g_free (info->name);
607
608 // FIXME: ji
609 for (l = info->unwind_ops; l; l = l->next)
610 g_free (l->data);
611 g_slist_free (info->unwind_ops);
612 g_free (info);
613 }
614
615 G_GNUC_UNUSED static void
616 break_count (void)
617 {
618 }
619
620 /*
621 * Runtime debugging tool, use if (debug_count ()) <x> else <y> to do <x> the first COUNT times, then do <y> afterwards.
622 * Set a breakpoint in break_count () to break the last time <x> is done.
623 */
624 G_GNUC_UNUSED gboolean
625 mono_debug_count (void)
626 {
627 static int count = 0;
628 count ++;
629
630 if (!getenv ("COUNT"))
631 return TRUE;
632
633 if (count == atoi (getenv ("COUNT"))) {
634 break_count ();
635 }
636
637 if (count > atoi (getenv ("COUNT"))) {
638 return FALSE;
639 }
640
641 return TRUE;
642 }
643
644 #define MONO_INIT_VARINFO(vi,id) do { \
645 (vi)->range.first_use.pos.bid = 0xffff; \
646 (vi)->reg = -1; \
647 (vi)->idx = (id); \
648 } while (0)
649
650 /**
651 * mono_unlink_bblock:
652 *
653 * Unlink two basic blocks.
654 */
655 void
656 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
657 {
658 int i, pos;
659 gboolean found;
660
661 found = FALSE;
662 for (i = 0; i < from->out_count; ++i) {
663 if (to == from->out_bb [i]) {
664 found = TRUE;
665 break;
666 }
667 }
668 if (found) {
669 pos = 0;
670 for (i = 0; i < from->out_count; ++i) {
671 if (from->out_bb [i] != to)
672 from->out_bb [pos ++] = from->out_bb [i];
673 }
674 g_assert (pos == from->out_count - 1);
675 from->out_count--;
676 }
677
678 found = FALSE;
679 for (i = 0; i < to->in_count; ++i) {
680 if (from == to->in_bb [i]) {
681 found = TRUE;
682 break;
683 }
684 }
685 if (found) {
686 pos = 0;
687 for (i = 0; i < to->in_count; ++i) {
688 if (to->in_bb [i] != from)
689 to->in_bb [pos ++] = to->in_bb [i];
690 }
691 g_assert (pos == to->in_count - 1);
692 to->in_count--;
693 }
694 }
695
696 /*
697 * mono_bblocks_linked:
698 *
699 * Return whenever BB1 and BB2 are linked in the CFG.
700 */
701 gboolean
702 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
703 {
704 int i;
705
706 for (i = 0; i < bb1->out_count; ++i) {
707 if (bb1->out_bb [i] == bb2)
708 return TRUE;
709 }
710
711 return FALSE;
712 }
713
714 static int
715 mono_find_block_region_notry (MonoCompile *cfg, int offset)
716 {
717 MonoMethodHeader *header = cfg->header;
718 MonoExceptionClause *clause;
719 int i;
720
721 for (i = 0; i < header->num_clauses; ++i) {
722 clause = &header->clauses [i];
723 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
724 (offset < (clause->handler_offset)))
725 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
726
727 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
728 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
729 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
730 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
731 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
732 else
733 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
734 }
735 }
736
737 return -1;
738 }
739
740 /*
741 * mono_get_block_region_notry:
742 *
743 * Return the region corresponding to REGION, ignoring try clauses nested inside
744 * finally clauses.
745 */
746 int
747 mono_get_block_region_notry (MonoCompile *cfg, int region)
748 {
749 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
750 MonoMethodHeader *header = cfg->header;
751
752 /*
753 * This can happen if a try clause is nested inside a finally clause.
754 */
755 int clause_index = (region >> 8) - 1;
756 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
757
758 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
759 }
760
761 return region;
762 }
763
764 MonoInst *
765 mono_find_spvar_for_region (MonoCompile *cfg, int region)
766 {
767 region = mono_get_block_region_notry (cfg, region);
768
769 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
770 }
771
772 static void
773 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
774 {
775 int i;
776
777 array [*dfn] = start;
778 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
779 for (i = 0; i < start->out_count; ++i) {
780 if (start->out_bb [i]->dfn)
781 continue;
782 (*dfn)++;
783 start->out_bb [i]->dfn = *dfn;
784 start->out_bb [i]->df_parent = start;
785 array [*dfn] = start->out_bb [i];
786 df_visit (start->out_bb [i], dfn, array);
787 }
788 }
789
790 guint32
791 mono_reverse_branch_op (guint32 opcode)
792 {
793 static const int reverse_map [] = {
794 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
795 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
796 };
797 static const int reverse_fmap [] = {
798 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
799 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
800 };
801 static const int reverse_lmap [] = {
802 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
803 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
804 };
805 static const int reverse_imap [] = {
806 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
807 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
808 };
809
810 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
811 opcode = reverse_map [opcode - CEE_BEQ];
812 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
813 opcode = reverse_fmap [opcode - OP_FBEQ];
814 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
815 opcode = reverse_lmap [opcode - OP_LBEQ];
816 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
817 opcode = reverse_imap [opcode - OP_IBEQ];
818 } else
819 g_assert_not_reached ();
820
821 return opcode;
822 }
823
824 guint
825 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
826 {
827 if (type->byref)
828 return OP_STORE_MEMBASE_REG;
829
830 handle_enum:
831 switch (type->type) {
832 case MONO_TYPE_I1:
833 case MONO_TYPE_U1:
834 case MONO_TYPE_BOOLEAN:
835 return OP_STOREI1_MEMBASE_REG;
836 case MONO_TYPE_I2:
837 case MONO_TYPE_U2:
838 case MONO_TYPE_CHAR:
839 return OP_STOREI2_MEMBASE_REG;
840 case MONO_TYPE_I4:
841 case MONO_TYPE_U4:
842 return OP_STOREI4_MEMBASE_REG;
843 case MONO_TYPE_I:
844 case MONO_TYPE_U:
845 case MONO_TYPE_PTR:
846 case MONO_TYPE_FNPTR:
847 return OP_STORE_MEMBASE_REG;
848 case MONO_TYPE_CLASS:
849 case MONO_TYPE_STRING:
850 case MONO_TYPE_OBJECT:
851 case MONO_TYPE_SZARRAY:
852 case MONO_TYPE_ARRAY:
853 return OP_STORE_MEMBASE_REG;
854 case MONO_TYPE_I8:
855 case MONO_TYPE_U8:
856 return OP_STOREI8_MEMBASE_REG;
857 case MONO_TYPE_R4:
858 return OP_STORER4_MEMBASE_REG;
859 case MONO_TYPE_R8:
860 return OP_STORER8_MEMBASE_REG;
861 case MONO_TYPE_VALUETYPE:
862 if (type->data.klass->enumtype) {
863 type = mono_class_enum_basetype (type->data.klass);
864 goto handle_enum;
865 }
866 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
867 return OP_STOREX_MEMBASE;
868 return OP_STOREV_MEMBASE;
869 case MONO_TYPE_TYPEDBYREF:
870 return OP_STOREV_MEMBASE;
871 case MONO_TYPE_GENERICINST:
872 type = &type->data.generic_class->container_class->byval_arg;
873 goto handle_enum;
874 case MONO_TYPE_VAR:
875 case MONO_TYPE_MVAR:
876 if (mini_type_var_is_vt (cfg, type))
877 return OP_STOREV_MEMBASE;
878 else
879 return OP_STORE_MEMBASE_REG;
880 default:
881 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
882 }
883 return -1;
884 }
885
886 guint
887 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
888 {
889 if (type->byref)
890 return OP_LOAD_MEMBASE;
891
892 type = mono_type_get_underlying_type (type);
893
894 switch (type->type) {
895 case MONO_TYPE_I1:
896 return OP_LOADI1_MEMBASE;
897 case MONO_TYPE_U1:
898 case MONO_TYPE_BOOLEAN:
899 return OP_LOADU1_MEMBASE;
900 case MONO_TYPE_I2:
901 return OP_LOADI2_MEMBASE;
902 case MONO_TYPE_U2:
903 case MONO_TYPE_CHAR:
904 return OP_LOADU2_MEMBASE;
905 case MONO_TYPE_I4:
906 return OP_LOADI4_MEMBASE;
907 case MONO_TYPE_U4:
908 return OP_LOADU4_MEMBASE;
909 case MONO_TYPE_I:
910 case MONO_TYPE_U:
911 case MONO_TYPE_PTR:
912 case MONO_TYPE_FNPTR:
913 return OP_LOAD_MEMBASE;
914 case MONO_TYPE_CLASS:
915 case MONO_TYPE_STRING:
916 case MONO_TYPE_OBJECT:
917 case MONO_TYPE_SZARRAY:
918 case MONO_TYPE_ARRAY:
919 return OP_LOAD_MEMBASE;
920 case MONO_TYPE_I8:
921 case MONO_TYPE_U8:
922 return OP_LOADI8_MEMBASE;
923 case MONO_TYPE_R4:
924 return OP_LOADR4_MEMBASE;
925 case MONO_TYPE_R8:
926 return OP_LOADR8_MEMBASE;
927 case MONO_TYPE_VALUETYPE:
928 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
929 return OP_LOADX_MEMBASE;
930 case MONO_TYPE_TYPEDBYREF:
931 return OP_LOADV_MEMBASE;
932 case MONO_TYPE_GENERICINST:
933 if (mono_type_generic_inst_is_valuetype (type))
934 return OP_LOADV_MEMBASE;
935 else
936 return OP_LOAD_MEMBASE;
937 break;
938 case MONO_TYPE_VAR:
939 case MONO_TYPE_MVAR:
940 g_assert (cfg->generic_sharing_context);
941 if (mini_type_var_is_vt (cfg, type))
942 return OP_LOADV_MEMBASE;
943 else
944 return OP_LOAD_MEMBASE;
945 default:
946 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
947 }
948 return -1;
949 }
950
951 static guint
952 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
953 {
954 if (cfg->generic_sharing_context && !type->byref) {
955 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR) {
956 if (mini_type_var_is_vt (cfg, type))
957 return CEE_LDOBJ;
958 else
959 return CEE_LDIND_REF;
960 }
961 }
962 return mono_type_to_ldind (type);
963 }
964
965 guint
966 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
967 {
968 if (cfg->generic_sharing_context && !type->byref) {
969 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR) {
970 if (mini_type_var_is_vt (cfg, type))
971 return CEE_STOBJ;
972 else
973 return CEE_STIND_REF;
974 }
975 }
976 return mono_type_to_stind (type);
977 }
978
979 int
980 mono_op_imm_to_op (int opcode)
981 {
982 switch (opcode) {
983 case OP_ADD_IMM:
984 #if SIZEOF_REGISTER == 4
985 return OP_IADD;
986 #else
987 return OP_LADD;
988 #endif
989 case OP_IADD_IMM:
990 return OP_IADD;
991 case OP_LADD_IMM:
992 return OP_LADD;
993 case OP_ISUB_IMM:
994 return OP_ISUB;
995 case OP_LSUB_IMM:
996 return OP_LSUB;
997 case OP_IMUL_IMM:
998 return OP_IMUL;
999 case OP_AND_IMM:
1000 #if SIZEOF_REGISTER == 4
1001 return OP_IAND;
1002 #else
1003 return OP_LAND;
1004 #endif
1005 case OP_OR_IMM:
1006 #if SIZEOF_REGISTER == 4
1007 return OP_IOR;
1008 #else
1009 return OP_LOR;
1010 #endif
1011 case OP_XOR_IMM:
1012 #if SIZEOF_REGISTER == 4
1013 return OP_IXOR;
1014 #else
1015 return OP_LXOR;
1016 #endif
1017 case OP_IAND_IMM:
1018 return OP_IAND;
1019 case OP_LAND_IMM:
1020 return OP_LAND;
1021 case OP_IOR_IMM:
1022 return OP_IOR;
1023 case OP_LOR_IMM:
1024 return OP_LOR;
1025 case OP_IXOR_IMM:
1026 return OP_IXOR;
1027 case OP_LXOR_IMM:
1028 return OP_LXOR;
1029 case OP_ISHL_IMM:
1030 return OP_ISHL;
1031 case OP_LSHL_IMM:
1032 return OP_LSHL;
1033 case OP_ISHR_IMM:
1034 return OP_ISHR;
1035 case OP_LSHR_IMM:
1036 return OP_LSHR;
1037 case OP_ISHR_UN_IMM:
1038 return OP_ISHR_UN;
1039 case OP_LSHR_UN_IMM:
1040 return OP_LSHR_UN;
1041 case OP_IDIV_IMM:
1042 return OP_IDIV;
1043 case OP_IDIV_UN_IMM:
1044 return OP_IDIV_UN;
1045 case OP_IREM_UN_IMM:
1046 return OP_IREM_UN;
1047 case OP_IREM_IMM:
1048 return OP_IREM;
1049 case OP_DIV_IMM:
1050 #if SIZEOF_REGISTER == 4
1051 return OP_IDIV;
1052 #else
1053 return OP_LDIV;
1054 #endif
1055 case OP_REM_IMM:
1056 #if SIZEOF_REGISTER == 4
1057 return OP_IREM;
1058 #else
1059 return OP_LREM;
1060 #endif
1061 case OP_ADDCC_IMM:
1062 return OP_ADDCC;
1063 case OP_ADC_IMM:
1064 return OP_ADC;
1065 case OP_SUBCC_IMM:
1066 return OP_SUBCC;
1067 case OP_SBB_IMM:
1068 return OP_SBB;
1069 case OP_IADC_IMM:
1070 return OP_IADC;
1071 case OP_ISBB_IMM:
1072 return OP_ISBB;
1073 case OP_COMPARE_IMM:
1074 return OP_COMPARE;
1075 case OP_ICOMPARE_IMM:
1076 return OP_ICOMPARE;
1077 case OP_LOCALLOC_IMM:
1078 return OP_LOCALLOC;
1079 default:
1080 printf ("%s\n", mono_inst_name (opcode));
1081 g_assert_not_reached ();
1082 return -1;
1083 }
1084 }
1085
1086 /*
1087 * mono_decompose_op_imm:
1088 *
1089 * Replace the OP_.._IMM INS with its non IMM variant.
1090 */
1091 void
1092 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
1093 {
1094 MonoInst *temp;
1095
1096 MONO_INST_NEW (cfg, temp, OP_ICONST);
1097 temp->inst_c0 = ins->inst_imm;
1098 temp->dreg = mono_alloc_ireg (cfg);
1099 mono_bblock_insert_before_ins (bb, ins, temp);
1100 ins->opcode = mono_op_imm_to_op (ins->opcode);
1101 if (ins->opcode == OP_LOCALLOC)
1102 ins->sreg1 = temp->dreg;
1103 else
1104 ins->sreg2 = temp->dreg;
1105
1106 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
1107 }
1108
1109 static void
1110 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
1111 {
1112 if (vreg >= cfg->vreg_to_inst_len) {
1113 MonoInst **tmp = cfg->vreg_to_inst;
1114 int size = cfg->vreg_to_inst_len;
1115
1116 while (vreg >= cfg->vreg_to_inst_len)
1117 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
1118 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
1119 if (size)
1120 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
1121 }
1122 cfg->vreg_to_inst [vreg] = inst;
1123 }
1124
1125 #define mono_type_is_long(type) (!(type)->byref && ((mono_type_get_underlying_type (type)->type == MONO_TYPE_I8) || (mono_type_get_underlying_type (type)->type == MONO_TYPE_U8)))
1126 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
1127
1128 #ifdef DISABLE_JIT
1129
1130 MonoInst*
1131 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1132 {
1133 return NULL;
1134 }
1135
1136 #else
1137
1138 MonoInst*
1139 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
1140 {
1141 MonoInst *inst;
1142 int num = cfg->num_varinfo;
1143 gboolean regpair;
1144
1145 if ((num + 1) >= cfg->varinfo_count) {
1146 int orig_count = cfg->varinfo_count;
1147 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 64;
1148 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
1149 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
1150 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
1151 }
1152
1153 cfg->stat_allocate_var++;
1154
1155 MONO_INST_NEW (cfg, inst, opcode);
1156 inst->inst_c0 = num;
1157 inst->inst_vtype = type;
1158 inst->klass = mono_class_from_mono_type (type);
1159 type_to_eval_stack_type (cfg, type, inst);
1160 /* if set to 1 the variable is native */
1161 inst->backend.is_pinvoke = 0;
1162 inst->dreg = vreg;
1163
1164 if (inst->klass->exception_type)
1165 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1166
1167 if (cfg->compute_gc_maps) {
1168 if (type->byref) {
1169 mono_mark_vreg_as_mp (cfg, vreg);
1170 } else {
1171 MonoType *t = mini_type_get_underlying_type (NULL, type);
1172 if ((MONO_TYPE_ISSTRUCT (t) && inst->klass->has_references) || mini_type_is_reference (cfg, t)) {
1173 inst->flags |= MONO_INST_GC_TRACK;
1174 mono_mark_vreg_as_ref (cfg, vreg);
1175 }
1176 }
1177 }
1178
1179 cfg->varinfo [num] = inst;
1180
1181 MONO_INIT_VARINFO (&cfg->vars [num], num);
1182 MONO_VARINFO (cfg, num)->vreg = vreg;
1183
1184 if (vreg != -1)
1185 set_vreg_to_inst (cfg, vreg, inst);
1186
1187 #if SIZEOF_REGISTER == 4
1188 #ifdef MONO_ARCH_SOFT_FLOAT
1189 regpair = mono_type_is_long (type) || mono_type_is_float (type);
1190 #else
1191 regpair = mono_type_is_long (type);
1192 #endif
1193 #else
1194 regpair = FALSE;
1195 #endif
1196
1197 if (regpair) {
1198 MonoInst *tree;
1199
1200 /*
1201 * These two cannot be allocated using create_var_for_vreg since that would
1202 * put it into the cfg->varinfo array, confusing many parts of the JIT.
1203 */
1204
1205 /*
1206 * Set flags to VOLATILE so SSA skips it.
1207 */
1208
1209 if (cfg->verbose_level >= 4) {
1210 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
1211 }
1212
1213 #ifdef MONO_ARCH_SOFT_FLOAT
1214 if (cfg->opt & MONO_OPT_SSA) {
1215 if (mono_type_is_float (type))
1216 inst->flags = MONO_INST_VOLATILE;
1217 }
1218 #endif
1219
1220 /* Allocate a dummy MonoInst for the first vreg */
1221 MONO_INST_NEW (cfg, tree, OP_LOCAL);
1222 tree->dreg = inst->dreg + 1;
1223 if (cfg->opt & MONO_OPT_SSA)
1224 tree->flags = MONO_INST_VOLATILE;
1225 tree->inst_c0 = num;
1226 tree->type = STACK_I4;
1227 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
1228 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
1229
1230 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
1231
1232 /* Allocate a dummy MonoInst for the second vreg */
1233 MONO_INST_NEW (cfg, tree, OP_LOCAL);
1234 tree->dreg = inst->dreg + 2;
1235 if (cfg->opt & MONO_OPT_SSA)
1236 tree->flags = MONO_INST_VOLATILE;
1237 tree->inst_c0 = num;
1238 tree->type = STACK_I4;
1239 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
1240 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
1241
1242 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
1243 }
1244
1245 cfg->num_varinfo++;
1246 if (cfg->verbose_level > 2)
1247 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
1248 return inst;
1249 }
1250
1251 MonoInst*
1252 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1253 {
1254 int dreg;
1255
1256 if (mono_type_is_long (type))
1257 dreg = mono_alloc_dreg (cfg, STACK_I8);
1258 #ifdef MONO_ARCH_SOFT_FLOAT
1259 else if (mono_type_is_float (type))
1260 dreg = mono_alloc_dreg (cfg, STACK_R8);
1261 #endif
1262 else
1263 /* All the others are unified */
1264 dreg = mono_alloc_preg (cfg);
1265
1266 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
1267 }
1268
1269 /*
1270 * Transform a MonoInst into a load from the variable of index var_index.
1271 */
1272 void
1273 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
1274 memset (dest, 0, sizeof (MonoInst));
1275 dest->inst_i0 = cfg->varinfo [var_index];
1276 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
1277 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
1278 dest->klass = dest->inst_i0->klass;
1279 }
1280
1281 #endif
1282
1283 void
1284 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
1285 {
1286 if (vreg >= cfg->vreg_is_ref_len) {
1287 gboolean *tmp = cfg->vreg_is_ref;
1288 int size = cfg->vreg_is_ref_len;
1289
1290 while (vreg >= cfg->vreg_is_ref_len)
1291 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
1292 cfg->vreg_is_ref = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
1293 if (size)
1294 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
1295 }
1296 cfg->vreg_is_ref [vreg] = TRUE;
1297 }
1298
1299 void
1300 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
1301 {
1302 if (vreg >= cfg->vreg_is_mp_len) {
1303 gboolean *tmp = cfg->vreg_is_mp;
1304 int size = cfg->vreg_is_mp_len;
1305
1306 while (vreg >= cfg->vreg_is_mp_len)
1307 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
1308 cfg->vreg_is_mp = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
1309 if (size)
1310 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
1311 }
1312 cfg->vreg_is_mp [vreg] = TRUE;
1313 }
1314
1315 static MonoType*
1316 type_from_stack_type (MonoInst *ins) {
1317 switch (ins->type) {
1318 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1319 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1320 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1321 case STACK_R8: return &mono_defaults.double_class->byval_arg;
1322 case STACK_MP:
1323 /*
1324 * this if used to be commented without any specific reason, but
1325 * it breaks #80235 when commented
1326 */
1327 if (ins->klass)
1328 return &ins->klass->this_arg;
1329 else
1330 return &mono_defaults.object_class->this_arg;
1331 case STACK_OBJ:
1332 /* ins->klass may not be set for ldnull.
1333 * Also, if we have a boxed valuetype, we want an object lass,
1334 * not the valuetype class
1335 */
1336 if (ins->klass && !ins->klass->valuetype)
1337 return &ins->klass->byval_arg;
1338 return &mono_defaults.object_class->byval_arg;
1339 case STACK_VTYPE: return &ins->klass->byval_arg;
1340 default:
1341 g_error ("stack type %d to montype not handled\n", ins->type);
1342 }
1343 return NULL;
1344 }
1345
1346 MonoType*
1347 mono_type_from_stack_type (MonoInst *ins) {
1348 return type_from_stack_type (ins);
1349 }
1350
1351 /*
1352 * mono_add_ins_to_end:
1353 *
1354 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
1355 */
1356 void
1357 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1358 {
1359 int opcode;
1360
1361 if (!bb->code) {
1362 MONO_ADD_INS (bb, inst);
1363 return;
1364 }
1365
1366 switch (bb->last_ins->opcode) {
1367 case OP_BR:
1368 case OP_BR_REG:
1369 case CEE_BEQ:
1370 case CEE_BGE:
1371 case CEE_BGT:
1372 case CEE_BLE:
1373 case CEE_BLT:
1374 case CEE_BNE_UN:
1375 case CEE_BGE_UN:
1376 case CEE_BGT_UN:
1377 case CEE_BLE_UN:
1378 case CEE_BLT_UN:
1379 case OP_SWITCH:
1380 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1381 break;
1382 default:
1383 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
1384 /* Need to insert the ins before the compare */
1385 if (bb->code == bb->last_ins) {
1386 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1387 return;
1388 }
1389
1390 if (bb->code->next == bb->last_ins) {
1391 /* Only two instructions */
1392 opcode = bb->code->opcode;
1393
1394 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM)) {
1395 /* NEW IR */
1396 mono_bblock_insert_before_ins (bb, bb->code, inst);
1397 } else {
1398 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1399 }
1400 } else {
1401 opcode = bb->last_ins->prev->opcode;
1402
1403 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM)) {
1404 /* NEW IR */
1405 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1406 } else {
1407 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1408 }
1409 }
1410 }
1411 else
1412 MONO_ADD_INS (bb, inst);
1413 break;
1414 }
1415 }
1416
1417 void
1418 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1419 {
1420 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1421 MonoJumpInfoBBTable *table;
1422
1423 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1424 table->table = bbs;
1425 table->table_size = num_blocks;
1426
1427 ji->ip.label = label;
1428 ji->type = MONO_PATCH_INFO_SWITCH;
1429 ji->data.table = table;
1430 ji->next = cfg->patch_info;
1431 cfg->patch_info = ji;
1432 }
1433
1434 static MonoMethodSignature *
1435 mono_get_array_new_va_signature (int arity)
1436 {
1437 static GHashTable *sighash = NULL;
1438 MonoMethodSignature *res;
1439 int i;
1440
1441 mono_jit_lock ();
1442 if (!sighash) {
1443 sighash = g_hash_table_new (NULL, NULL);
1444 }
1445 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1446 mono_jit_unlock ();
1447 return res;
1448 }
1449
1450 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1451
1452 res->pinvoke = 1;
1453 #ifdef MONO_ARCH_VARARG_ICALLS
1454 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1455 res->call_convention = MONO_CALL_VARARG;
1456 #endif
1457
1458 #ifdef TARGET_WIN32
1459 res->call_convention = MONO_CALL_C;
1460 #endif
1461
1462 res->params [0] = &mono_defaults.int_class->byval_arg;
1463 for (i = 0; i < arity; i++)
1464 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1465
1466 res->ret = &mono_defaults.object_class->byval_arg;
1467
1468 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1469 mono_jit_unlock ();
1470
1471 return res;
1472 }
1473
1474 MonoJitICallInfo *
1475 mono_get_array_new_va_icall (int rank)
1476 {
1477 MonoMethodSignature *esig;
1478 char icall_name [256];
1479 char *name;
1480 MonoJitICallInfo *info;
1481
1482 /* Need to register the icall so it gets an icall wrapper */
1483 sprintf (icall_name, "ves_array_new_va_%d", rank);
1484
1485 mono_jit_lock ();
1486 info = mono_find_jit_icall_by_name (icall_name);
1487 if (info == NULL) {
1488 esig = mono_get_array_new_va_signature (rank);
1489 name = g_strdup (icall_name);
1490 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1491
1492 g_hash_table_insert (jit_icall_name_hash, name, name);
1493 }
1494 mono_jit_unlock ();
1495
1496 return info;
1497 }
1498
1499 gboolean
1500 mini_class_is_system_array (MonoClass *klass)
1501 {
1502 if (klass->parent == mono_defaults.array_class)
1503 return TRUE;
1504 else
1505 return FALSE;
1506 }
1507
1508 gboolean
1509 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1510 {
1511 MonoAssembly *assembly = method->klass->image->assembly;
1512 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1513 return FALSE;
1514 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1515 return FALSE;
1516 if (mono_security_get_mode () != MONO_SECURITY_MODE_NONE)
1517 return FALSE;
1518 return mono_assembly_has_skip_verification (assembly);
1519 }
1520
1521 /*
1522 * mini_method_verify:
1523 *
1524 * Verify the method using the new verfier.
1525 *
1526 * Returns true if the method is invalid.
1527 */
1528 static gboolean
1529 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1530 {
1531 GSList *tmp, *res;
1532 gboolean is_fulltrust;
1533 MonoLoaderError *error;
1534
1535 if (method->verification_success)
1536 return FALSE;
1537
1538 if (!mono_verifier_is_enabled_for_method (method))
1539 return FALSE;
1540
1541 /*skip verification implies the assembly must be */
1542 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1543
1544 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1545
1546 if ((error = mono_loader_get_last_error ())) {
1547 if (fail_compile)
1548 cfg->exception_type = error->exception_type;
1549 else
1550 mono_loader_clear_error ();
1551 if (res)
1552 mono_free_verify_list (res);
1553 return TRUE;
1554 }
1555
1556 if (res) {
1557 for (tmp = res; tmp; tmp = tmp->next) {
1558 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1559 if (info->info.status == MONO_VERIFY_ERROR) {
1560 if (fail_compile) {
1561 char *method_name = mono_method_full_name (method, TRUE);
1562 cfg->exception_type = info->exception_type;
1563 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1564 g_free (method_name);
1565 }
1566 mono_free_verify_list (res);
1567 return TRUE;
1568 }
1569 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1570 if (fail_compile) {
1571 char *method_name = mono_method_full_name (method, TRUE);
1572 cfg->exception_type = info->exception_type;
1573 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1574 g_free (method_name);
1575 }
1576 mono_free_verify_list (res);
1577 return TRUE;
1578 }
1579 }
1580 mono_free_verify_list (res);
1581 }
1582 method->verification_success = 1;
1583 return FALSE;
1584 }
1585
1586 /*Returns true if something went wrong*/
1587 gboolean
1588 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1589 {
1590 MonoMethod *method_definition = method;
1591 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1592
1593 while (method_definition->is_inflated) {
1594 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1595 method_definition = imethod->declaring;
1596 }
1597
1598 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1599 }
1600
1601 static gconstpointer
1602 mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile)
1603 {
1604 char *name;
1605 MonoMethod *wrapper;
1606 gconstpointer trampoline;
1607 MonoDomain *domain = mono_get_root_domain ();
1608
1609 if (callinfo->wrapper) {
1610 return callinfo->wrapper;
1611 }
1612
1613 if (callinfo->trampoline)
1614 return callinfo->trampoline;
1615
1616 /*
1617 * We use the lock on the root domain instead of the JIT lock to protect
1618 * callinfo->trampoline, since we do a lot of stuff inside the critical section.
1619 */
1620 mono_loader_lock (); /*FIXME mono_compile_method requires the loader lock, by large.*/
1621 mono_domain_lock (domain);
1622
1623 if (callinfo->trampoline) {
1624 mono_domain_unlock (domain);
1625 mono_loader_unlock ();
1626 return callinfo->trampoline;
1627 }
1628
1629 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1630 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1631 g_free (name);
1632
1633 if (do_compile)
1634 trampoline = mono_compile_method (wrapper);
1635 else
1636 trampoline = mono_create_ftnptr (domain, mono_create_jit_trampoline_in_domain (domain, wrapper));
1637 mono_register_jit_icall_wrapper (callinfo, trampoline);
1638
1639 callinfo->trampoline = trampoline;
1640
1641 mono_domain_unlock (domain);
1642 mono_loader_unlock ();
1643
1644 return callinfo->trampoline;
1645 }
1646
1647 gconstpointer
1648 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
1649 {
1650 return mono_icall_get_wrapper_full (callinfo, FALSE);
1651 }
1652
1653 static void
1654 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1655 {
1656 if (!domain_jit_info (domain)->dynamic_code_hash)
1657 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1658 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1659 }
1660
1661 static MonoJitDynamicMethodInfo*
1662 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1663 {
1664 MonoJitDynamicMethodInfo *res;
1665
1666 if (domain_jit_info (domain)->dynamic_code_hash)
1667 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1668 else
1669 res = NULL;
1670 return res;
1671 }
1672
1673 typedef struct {
1674 MonoClass *vtype;
1675 GList *active, *inactive;
1676 GSList *slots;
1677 } StackSlotInfo;
1678
1679 static gint
1680 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1681 {
1682 MonoMethodVar *v1 = (MonoMethodVar*)a;
1683 MonoMethodVar *v2 = (MonoMethodVar*)b;
1684
1685 if (v1 == v2)
1686 return 0;
1687 else if (v1->interval->range && v2->interval->range)
1688 return v1->interval->range->from - v2->interval->range->from;
1689 else if (v1->interval->range)
1690 return -1;
1691 else
1692 return 1;
1693 }
1694
1695 #ifndef DISABLE_JIT
1696
1697 #if 0
1698 #define LSCAN_DEBUG(a) do { a; } while (0)
1699 #else
1700 #define LSCAN_DEBUG(a)
1701 #endif
1702
1703 static gint32*
1704 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1705 {
1706 int i, slot, offset, size;
1707 guint32 align;
1708 MonoMethodVar *vmv;
1709 MonoInst *inst;
1710 gint32 *offsets;
1711 GList *vars = NULL, *l, *unhandled;
1712 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1713 MonoType *t;
1714 int nvtypes;
1715 gboolean reuse_slot;
1716
1717 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1718
1719 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1720 vtype_stack_slots = NULL;
1721 nvtypes = 0;
1722
1723 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1724 for (i = 0; i < cfg->num_varinfo; ++i)
1725 offsets [i] = -1;
1726
1727 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1728 inst = cfg->varinfo [i];
1729 vmv = MONO_VARINFO (cfg, i);
1730
1731 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1732 continue;
1733
1734 vars = g_list_prepend (vars, vmv);
1735 }
1736
1737 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1738
1739 /* Sanity check */
1740 /*
1741 i = 0;
1742 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1743 MonoMethodVar *current = unhandled->data;
1744
1745 if (current->interval->range) {
1746 g_assert (current->interval->range->from >= i);
1747 i = current->interval->range->from;
1748 }
1749 }
1750 */
1751
1752 offset = 0;
1753 *stack_align = 0;
1754 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1755 MonoMethodVar *current = unhandled->data;
1756
1757 vmv = current;
1758 inst = cfg->varinfo [vmv->idx];
1759
1760 t = mono_type_get_underlying_type (inst->inst_vtype);
1761 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (cfg, t))
1762 t = mini_get_gsharedvt_alloc_type_for_type (cfg, t);
1763
1764 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1765 * pinvoke wrappers when they call functions returning structures */
1766 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1767 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1768 }
1769 else {
1770 int ialign;
1771
1772 size = mono_type_size (t, &ialign);
1773 align = ialign;
1774
1775 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1776 align = 16;
1777 }
1778
1779 reuse_slot = TRUE;
1780 if (cfg->disable_reuse_stack_slots)
1781 reuse_slot = FALSE;
1782
1783 switch (t->type) {
1784 case MONO_TYPE_GENERICINST:
1785 if (!mono_type_generic_inst_is_valuetype (t)) {
1786 slot_info = &scalar_stack_slots [t->type];
1787 break;
1788 }
1789 /* Fall through */
1790 case MONO_TYPE_VALUETYPE:
1791 if (!vtype_stack_slots)
1792 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1793 for (i = 0; i < nvtypes; ++i)
1794 if (t->data.klass == vtype_stack_slots [i].vtype)
1795 break;
1796 if (i < nvtypes)
1797 slot_info = &vtype_stack_slots [i];
1798 else {
1799 g_assert (nvtypes < 256);
1800 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1801 slot_info = &vtype_stack_slots [nvtypes];
1802 nvtypes ++;
1803 }
1804 if (cfg->disable_reuse_ref_stack_slots)
1805 reuse_slot = FALSE;
1806 break;
1807
1808 case MONO_TYPE_PTR:
1809 case MONO_TYPE_I:
1810 case MONO_TYPE_U:
1811 #if SIZEOF_VOID_P == 4
1812 case MONO_TYPE_I4:
1813 #else
1814 case MONO_TYPE_I8:
1815 #endif
1816 if (cfg->disable_ref_noref_stack_slot_share) {
1817 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1818 break;
1819 }
1820 /* Fall through */
1821
1822 case MONO_TYPE_CLASS:
1823 case MONO_TYPE_OBJECT:
1824 case MONO_TYPE_ARRAY:
1825 case MONO_TYPE_SZARRAY:
1826 case MONO_TYPE_STRING:
1827 /* Share non-float stack slots of the same size */
1828 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1829 if (cfg->disable_reuse_ref_stack_slots)
1830 reuse_slot = FALSE;
1831 break;
1832
1833 default:
1834 slot_info = &scalar_stack_slots [t->type];
1835 }
1836
1837 slot = 0xffffff;
1838 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1839 int pos;
1840 gboolean changed;
1841
1842 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1843
1844 if (!current->interval->range) {
1845 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1846 pos = ~0;
1847 else {
1848 /* Dead */
1849 inst->flags |= MONO_INST_IS_DEAD;
1850 continue;
1851 }
1852 }
1853 else
1854 pos = current->interval->range->from;
1855
1856 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1857 if (current->interval->range)
1858 LSCAN_DEBUG (mono_linterval_print (current->interval));
1859 LSCAN_DEBUG (printf ("\n"));
1860
1861 /* Check for intervals in active which expired or inactive */
1862 changed = TRUE;
1863 /* FIXME: Optimize this */
1864 while (changed) {
1865 changed = FALSE;
1866 for (l = slot_info->active; l != NULL; l = l->next) {
1867 MonoMethodVar *v = (MonoMethodVar*)l->data;
1868
1869 if (v->interval->last_range->to < pos) {
1870 slot_info->active = g_list_delete_link (slot_info->active, l);
1871 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1872 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1873 changed = TRUE;
1874 break;
1875 }
1876 else if (!mono_linterval_covers (v->interval, pos)) {
1877 slot_info->inactive = g_list_append (slot_info->inactive, v);
1878 slot_info->active = g_list_delete_link (slot_info->active, l);
1879 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1880 changed = TRUE;
1881 break;
1882 }
1883 }
1884 }
1885
1886 /* Check for intervals in inactive which expired or active */
1887 changed = TRUE;
1888 /* FIXME: Optimize this */
1889 while (changed) {
1890 changed = FALSE;
1891 for (l = slot_info->inactive; l != NULL; l = l->next) {
1892 MonoMethodVar *v = (MonoMethodVar*)l->data;
1893
1894 if (v->interval->last_range->to < pos) {
1895 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1896 // FIXME: Enabling this seems to cause impossible to debug crashes
1897 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1898 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1899 changed = TRUE;
1900 break;
1901 }
1902 else if (mono_linterval_covers (v->interval, pos)) {
1903 slot_info->active = g_list_append (slot_info->active, v);
1904 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1905 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1906 changed = TRUE;
1907 break;
1908 }
1909 }
1910 }
1911
1912 /*
1913 * This also handles the case when the variable is used in an
1914 * exception region, as liveness info is not computed there.
1915 */
1916 /*
1917 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1918 * opcodes.
1919 */
1920 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1921 if (slot_info->slots) {
1922 slot = GPOINTER_TO_INT (slot_info->slots->data);
1923
1924 slot_info->slots = slot_info->slots->next;
1925 }
1926
1927 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1928
1929 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1930 }
1931 }
1932
1933 #if 0
1934 {
1935 static int count = 0;
1936 count ++;
1937
1938 if (count == atoi (getenv ("COUNT3")))
1939 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1940 if (count > atoi (getenv ("COUNT3")))
1941 slot = 0xffffff;
1942 else {
1943 mono_print_ins (inst);
1944 }
1945 }
1946 #endif
1947
1948 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1949
1950 if (inst->flags & MONO_INST_LMF) {
1951 size = sizeof (MonoLMF);
1952 align = sizeof (mgreg_t);
1953 reuse_slot = FALSE;
1954 }
1955
1956 if (!reuse_slot)
1957 slot = 0xffffff;
1958
1959 if (slot == 0xffffff) {
1960 /*
1961 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1962 * efficient copying (and to work around the fact that OP_MEMCPY
1963 * and OP_MEMSET ignores alignment).
1964 */
1965 if (MONO_TYPE_ISSTRUCT (t)) {
1966 align = MAX (align, sizeof (gpointer));
1967 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1968 }
1969
1970 if (backward) {
1971 offset += size;
1972 offset += align - 1;
1973 offset &= ~(align - 1);
1974 slot = offset;
1975 }
1976 else {
1977 offset += align - 1;
1978 offset &= ~(align - 1);
1979 slot = offset;
1980 offset += size;
1981 }
1982
1983 if (*stack_align == 0)
1984 *stack_align = align;
1985 }
1986
1987 offsets [vmv->idx] = slot;
1988 }
1989 g_list_free (vars);
1990 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1991 if (scalar_stack_slots [i].active)
1992 g_list_free (scalar_stack_slots [i].active);
1993 }
1994 for (i = 0; i < nvtypes; ++i) {
1995 if (vtype_stack_slots [i].active)
1996 g_list_free (vtype_stack_slots [i].active);
1997 }
1998
1999 cfg->stat_locals_stack_size += offset;
2000
2001 *stack_size = offset;
2002 return offsets;
2003 }
2004
2005 /*
2006 * mono_allocate_stack_slots:
2007 *
2008 * Allocate stack slots for all non register allocated variables using a
2009 * linear scan algorithm.
2010 * Returns: an array of stack offsets.
2011 * STACK_SIZE is set to the amount of stack space needed.
2012 * STACK_ALIGN is set to the alignment needed by the locals area.
2013 */
2014 gint32*
2015 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
2016 {
2017 int i, slot, offset, size;
2018 guint32 align;
2019 MonoMethodVar *vmv;
2020 MonoInst *inst;
2021 gint32 *offsets;
2022 GList *vars = NULL, *l;
2023 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
2024 MonoType *t;
2025 int nvtypes;
2026 gboolean reuse_slot;
2027
2028 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
2029 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
2030
2031 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
2032 vtype_stack_slots = NULL;
2033 nvtypes = 0;
2034
2035 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
2036 for (i = 0; i < cfg->num_varinfo; ++i)
2037 offsets [i] = -1;
2038
2039 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
2040 inst = cfg->varinfo [i];
2041 vmv = MONO_VARINFO (cfg, i);
2042
2043 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
2044 continue;
2045
2046 vars = g_list_prepend (vars, vmv);
2047 }
2048
2049 vars = mono_varlist_sort (cfg, vars, 0);
2050 offset = 0;
2051 *stack_align = sizeof(mgreg_t);
2052 for (l = vars; l; l = l->next) {
2053 vmv = l->data;
2054 inst = cfg->varinfo [vmv->idx];
2055
2056 t = mono_type_get_underlying_type (inst->inst_vtype);
2057 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (cfg, t))
2058 t = mini_get_gsharedvt_alloc_type_for_type (cfg, t);
2059
2060 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
2061 * pinvoke wrappers when they call functions returning structures */
2062 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
2063 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
2064 } else {
2065 int ialign;
2066
2067 size = mono_type_size (t, &ialign);
2068 align = ialign;
2069
2070 if (mono_class_from_mono_type (t)->exception_type)
2071 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
2072
2073 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
2074 align = 16;
2075 }
2076
2077 reuse_slot = TRUE;
2078 if (cfg->disable_reuse_stack_slots)
2079 reuse_slot = FALSE;
2080
2081 if (t->byref) {
2082 slot_info = &scalar_stack_slots [MONO_TYPE_I];
2083 } else {
2084 switch (t->type) {
2085 case MONO_TYPE_GENERICINST:
2086 if (!mono_type_generic_inst_is_valuetype (t)) {
2087 slot_info = &scalar_stack_slots [t->type];
2088 break;
2089 }
2090 /* Fall through */
2091 case MONO_TYPE_VALUETYPE:
2092 if (!vtype_stack_slots)
2093 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
2094 for (i = 0; i < nvtypes; ++i)
2095 if (t->data.klass == vtype_stack_slots [i].vtype)
2096 break;
2097 if (i < nvtypes)
2098 slot_info = &vtype_stack_slots [i];
2099 else {
2100 g_assert (nvtypes < 256);
2101 vtype_stack_slots [nvtypes].vtype = t->data.klass;
2102 slot_info = &vtype_stack_slots [nvtypes];
2103 nvtypes ++;
2104 }
2105 if (cfg->disable_reuse_ref_stack_slots)
2106 reuse_slot = FALSE;
2107 break;
2108
2109 case MONO_TYPE_PTR:
2110 case MONO_TYPE_I:
2111 case MONO_TYPE_U:
2112 #if SIZEOF_VOID_P == 4
2113 case MONO_TYPE_I4:
2114 #else
2115 case MONO_TYPE_I8:
2116 #endif
2117 if (cfg->disable_ref_noref_stack_slot_share) {
2118 slot_info = &scalar_stack_slots [MONO_TYPE_I];
2119 break;
2120 }
2121 /* Fall through */
2122
2123 case MONO_TYPE_CLASS:
2124 case MONO_TYPE_OBJECT:
2125 case MONO_TYPE_ARRAY:
2126 case MONO_TYPE_SZARRAY:
2127 case MONO_TYPE_STRING:
2128 /* Share non-float stack slots of the same size */
2129 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
2130 if (cfg->disable_reuse_ref_stack_slots)
2131 reuse_slot = FALSE;
2132 break;
2133 case MONO_TYPE_VAR:
2134 case MONO_TYPE_MVAR:
2135 slot_info = &scalar_stack_slots [t->type];
2136 break;
2137 default:
2138 slot_info = &scalar_stack_slots [t->type];
2139 break;
2140 }
2141 }
2142
2143 slot = 0xffffff;
2144 if (cfg->comp_done & MONO_COMP_LIVENESS) {
2145 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
2146
2147 /* expire old intervals in active */
2148 while (slot_info->active) {
2149 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
2150
2151 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
2152 break;
2153
2154 //printf ("EXPIR %2d %08x %08x C%d R%d\n", amv->idx, amv->range.first_use.abs_pos, amv->range.last_use.abs_pos, amv->spill_costs, amv->reg);
2155
2156 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
2157 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
2158 }
2159
2160 /*
2161 * This also handles the case when the variable is used in an
2162 * exception region, as liveness info is not computed there.
2163 */
2164 /*
2165 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
2166 * opcodes.
2167 */
2168 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
2169 if (slot_info->slots) {
2170 slot = GPOINTER_TO_INT (slot_info->slots->data);
2171
2172 slot_info->slots = slot_info->slots->next;
2173 }
2174
2175 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
2176 }
2177 }
2178
2179 {
2180 static int count = 0;
2181 count ++;
2182
2183 /*
2184 if (count == atoi (getenv ("COUNT")))
2185 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
2186 if (count > atoi (getenv ("COUNT")))
2187 slot = 0xffffff;
2188 else {
2189 mono_print_ins (inst);
2190 }
2191 */
2192 }
2193
2194 if (inst->flags & MONO_INST_LMF) {
2195 /*
2196 * This variable represents a MonoLMF structure, which has no corresponding
2197 * CLR type, so hard-code its size/alignment.
2198 */
2199 size = sizeof (MonoLMF);
2200 align = sizeof (mgreg_t);
2201 reuse_slot = FALSE;
2202 }
2203
2204 if (!reuse_slot)
2205 slot = 0xffffff;
2206
2207 if (slot == 0xffffff) {
2208 /*
2209 * Allways allocate valuetypes to sizeof (gpointer) to allow more
2210 * efficient copying (and to work around the fact that OP_MEMCPY
2211 * and OP_MEMSET ignores alignment).
2212 */
2213 if (MONO_TYPE_ISSTRUCT (t)) {
2214 align = MAX (align, sizeof (gpointer));
2215 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
2216 /*
2217 * Align the size too so the code generated for passing vtypes in
2218 * registers doesn't overwrite random locals.
2219 */
2220 size = (size + (align - 1)) & ~(align -1);
2221 }
2222
2223 if (backward) {
2224 offset += size;
2225 offset += align - 1;
2226 offset &= ~(align - 1);
2227 slot = offset;
2228 }
2229 else {
2230 offset += align - 1;
2231 offset &= ~(align - 1);
2232 slot = offset;
2233 offset += size;
2234 }
2235
2236 *stack_align = MAX (*stack_align, align);
2237 }
2238
2239 offsets [vmv->idx] = slot;
2240 }
2241 g_list_free (vars);
2242 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
2243 if (scalar_stack_slots [i].active)
2244 g_list_free (scalar_stack_slots [i].active);
2245 }
2246 for (i = 0; i < nvtypes; ++i) {
2247 if (vtype_stack_slots [i].active)
2248 g_list_free (vtype_stack_slots [i].active);
2249 }
2250
2251 cfg->stat_locals_stack_size += offset;
2252
2253 *stack_size = offset;
2254 return offsets;
2255 }
2256
2257 #else
2258
2259 gint32*
2260 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
2261 {
2262 g_assert_not_reached ();
2263 return NULL;
2264 }
2265
2266 #endif /* DISABLE_JIT */
2267
2268 #define EMUL_HIT_SHIFT 3
2269 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
2270 /* small hit bitmap cache */
2271 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
2272 static short emul_opcode_num = 0;
2273 static short emul_opcode_alloced = 0;
2274 static short *emul_opcode_opcodes = NULL;
2275 static MonoJitICallInfo **emul_opcode_map = NULL;
2276
2277 MonoJitICallInfo *
2278 mono_find_jit_opcode_emulation (int opcode)
2279 {
2280 g_assert (opcode >= 0 && opcode <= OP_LAST);
2281 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
2282 int i;
2283 for (i = 0; i < emul_opcode_num; ++i) {
2284 if (emul_opcode_opcodes [i] == opcode)
2285 return emul_opcode_map [i];
2286 }
2287 }
2288 return NULL;
2289 }
2290
2291 void
2292 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
2293 {
2294 MonoJitICallInfo *info;
2295 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
2296
2297 g_assert (!sig->hasthis);
2298 g_assert (sig->param_count < 3);
2299
2300 info = mono_register_jit_icall (func, name, sig, no_throw);
2301
2302 if (emul_opcode_num >= emul_opcode_alloced) {
2303 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
2304 emul_opcode_alloced += incr;
2305 emul_opcode_map = g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
2306 emul_opcode_opcodes = g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
2307 }
2308 emul_opcode_map [emul_opcode_num] = info;
2309 emul_opcode_opcodes [emul_opcode_num] = opcode;
2310 emul_opcode_num++;
2311 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
2312 }
2313
2314 static void
2315 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
2316 {
2317 MonoMethodSignature *sig;
2318
2319 if (sigstr)
2320 sig = mono_create_icall_signature (sigstr);
2321 else
2322 sig = NULL;
2323
2324 mono_register_jit_icall (func, name, sig, save);
2325 }
2326
2327 static void
2328 print_dfn (MonoCompile *cfg) {
2329 int i, j;
2330 char *code;
2331 MonoBasicBlock *bb;
2332 MonoInst *c;
2333
2334 {
2335 char *method_name = mono_method_full_name (cfg->method, TRUE);
2336 g_print ("IR code for method %s\n", method_name);
2337 g_free (method_name);
2338 }
2339
2340 for (i = 0; i < cfg->num_bblocks; ++i) {
2341 bb = cfg->bblocks [i];
2342 /*if (bb->cil_code) {
2343 char* code1, *code2;
2344 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
2345 if (bb->last_ins->cil_code)
2346 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
2347 else
2348 code2 = g_strdup ("");
2349
2350 code1 [strlen (code1) - 1] = 0;
2351 code = g_strdup_printf ("%s -> %s", code1, code2);
2352 g_free (code1);
2353 g_free (code2);
2354 } else*/
2355 code = g_strdup ("\n");
2356 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
2357 MONO_BB_FOR_EACH_INS (bb, c) {
2358 mono_print_ins_index (-1, c);
2359 }
2360
2361 g_print ("\tprev:");
2362 for (j = 0; j < bb->in_count; ++j) {
2363 g_print (" BB%d", bb->in_bb [j]->block_num);
2364 }
2365 g_print ("\t\tsucc:");
2366 for (j = 0; j < bb->out_count; ++j) {
2367 g_print (" BB%d", bb->out_bb [j]->block_num);
2368 }
2369 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
2370
2371 if (bb->idom)
2372 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
2373
2374 if (bb->dominators)
2375 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
2376 if (bb->dfrontier)
2377 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
2378 g_free (code);
2379 }
2380
2381 g_print ("\n");
2382 }
2383
2384 void
2385 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
2386 {
2387 MONO_ADD_INS (bb, inst);
2388 }
2389
2390 void
2391 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2392 {
2393 if (ins == NULL) {
2394 ins = bb->code;
2395 bb->code = ins_to_insert;
2396
2397 /* Link with next */
2398 ins_to_insert->next = ins;
2399 if (ins)
2400 ins->prev = ins_to_insert;
2401
2402 if (bb->last_ins == NULL)
2403 bb->last_ins = ins_to_insert;
2404 } else {
2405 /* Link with next */
2406 ins_to_insert->next = ins->next;
2407 if (ins->next)
2408 ins->next->prev = ins_to_insert;
2409
2410 /* Link with previous */
2411 ins->next = ins_to_insert;
2412 ins_to_insert->prev = ins;
2413
2414 if (bb->last_ins == ins)
2415 bb->last_ins = ins_to_insert;
2416 }
2417 }
2418
2419 void
2420 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2421 {
2422 if (ins == NULL) {
2423 ins = bb->code;
2424 if (ins)
2425 ins->prev = ins_to_insert;
2426 bb->code = ins_to_insert;
2427 ins_to_insert->next = ins;
2428 if (bb->last_ins == NULL)
2429 bb->last_ins = ins_to_insert;
2430 } else {
2431 /* Link with previous */
2432 if (ins->prev)
2433 ins->prev->next = ins_to_insert;
2434 ins_to_insert->prev = ins->prev;
2435
2436 /* Link with next */
2437 ins->prev = ins_to_insert;
2438 ins_to_insert->next = ins;
2439
2440 if (bb->code == ins)
2441 bb->code = ins_to_insert;
2442 }
2443 }
2444
2445 /*
2446 * mono_verify_bblock:
2447 *
2448 * Verify that the next and prev pointers are consistent inside the instructions in BB.
2449 */
2450 void
2451 mono_verify_bblock (MonoBasicBlock *bb)
2452 {
2453 MonoInst *ins, *prev;
2454
2455 prev = NULL;
2456 for (ins = bb->code; ins; ins = ins->next) {
2457 g_assert (ins->prev == prev);
2458 prev = ins;
2459 }
2460 if (bb->last_ins)
2461 g_assert (!bb->last_ins->next);
2462 }
2463
2464 /*
2465 * mono_verify_cfg:
2466 *
2467 * Perform consistency checks on the JIT data structures and the IR
2468 */
2469 void
2470 mono_verify_cfg (MonoCompile *cfg)
2471 {
2472 MonoBasicBlock *bb;
2473
2474 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2475 mono_verify_bblock (bb);
2476 }
2477
2478 void
2479 mono_destroy_compile (MonoCompile *cfg)
2480 {
2481 GSList *l;
2482
2483 if (cfg->header)
2484 mono_metadata_free_mh (cfg->header);
2485 //mono_mempool_stats (cfg->mempool);
2486 mono_free_loop_info (cfg);
2487 if (cfg->rs)
2488 mono_regstate_free (cfg->rs);
2489 if (cfg->spvars)
2490 g_hash_table_destroy (cfg->spvars);
2491 if (cfg->exvars)
2492 g_hash_table_destroy (cfg->exvars);
2493 for (l = cfg->headers_to_free; l; l = l->next)
2494 mono_metadata_free_mh (l->data);
2495 g_list_free (cfg->ldstr_list);
2496 g_hash_table_destroy (cfg->token_info_hash);
2497 if (cfg->abs_patches)
2498 g_hash_table_destroy (cfg->abs_patches);
2499 mono_mempool_destroy (cfg->mempool);
2500
2501 mono_debug_free_method (cfg);
2502
2503 g_free (cfg->varinfo);
2504 g_free (cfg->vars);
2505 g_free (cfg->exception_message);
2506 g_free (cfg);
2507 }
2508
2509 #ifdef MONO_HAVE_FAST_TLS
2510 MONO_FAST_TLS_DECLARE(mono_lmf_addr);
2511 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
2512 /*
2513 * When this is defined, the current lmf is stored in this tls variable instead of in
2514 * jit_tls->lmf.
2515 */
2516 MONO_FAST_TLS_DECLARE(mono_lmf);
2517 #endif
2518 #endif
2519
2520 MonoNativeTlsKey
2521 mono_get_jit_tls_key (void)
2522 {
2523 return mono_jit_tls_id;
2524 }
2525
2526 gint32
2527 mono_get_jit_tls_offset (void)
2528 {
2529 int offset;
2530 MONO_THREAD_VAR_OFFSET (mono_jit_tls, offset);
2531 return offset;
2532 }
2533
2534 gint32
2535 mono_get_lmf_tls_offset (void)
2536 {
2537 #if defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2538 int offset;
2539 MONO_THREAD_VAR_OFFSET(mono_lmf,offset);
2540 return offset;
2541 #else
2542 return -1;
2543 #endif
2544 }
2545
2546 gint32
2547 mono_get_lmf_addr_tls_offset (void)
2548 {
2549 int offset;
2550 MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
2551 return offset;
2552 }
2553
2554 MonoLMF *
2555 mono_get_lmf (void)
2556 {
2557 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2558 return MONO_FAST_TLS_GET (mono_lmf);
2559 #else
2560 MonoJitTlsData *jit_tls;
2561
2562 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
2563 return jit_tls->lmf;
2564 /*
2565 * We do not assert here because this function can be called from
2566 * mini-gc.c on a thread that has not executed any managed code, yet
2567 * (the thread object allocation can trigger a collection).
2568 */
2569 return NULL;
2570 #endif
2571 }
2572
2573 MonoLMF **
2574 mono_get_lmf_addr (void)
2575 {
2576 #ifdef MONO_HAVE_FAST_TLS
2577 return MONO_FAST_TLS_GET (mono_lmf_addr);
2578 #else
2579 MonoJitTlsData *jit_tls;
2580
2581 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
2582 return &jit_tls->lmf;
2583
2584 /*
2585 * When resolving the call to mono_jit_thread_attach full-aot will look
2586 * in the plt, which causes a call into the generic trampoline, which in turn
2587 * tries to resolve the lmf_addr creating a cyclic dependency. We cannot
2588 * call mono_jit_thread_attach from the native-to-managed wrapper, without
2589 * mono_get_lmf_addr, and mono_get_lmf_addr requires the thread to be attached.
2590 */
2591
2592 mono_jit_thread_attach (NULL);
2593
2594 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
2595 return &jit_tls->lmf;
2596
2597 g_assert_not_reached ();
2598 return NULL;
2599 #endif
2600 }
2601
2602 void
2603 mono_set_lmf (MonoLMF *lmf)
2604 {
2605 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2606 MONO_FAST_TLS_SET (mono_lmf, lmf);
2607 #endif
2608
2609 (*mono_get_lmf_addr ()) = lmf;
2610 }
2611
2612 static void
2613 mono_set_jit_tls (MonoJitTlsData *jit_tls)
2614 {
2615 mono_native_tls_set_value (mono_jit_tls_id, jit_tls);
2616
2617 #ifdef MONO_HAVE_FAST_TLS
2618 MONO_FAST_TLS_SET (mono_jit_tls, jit_tls);
2619 #endif
2620 }
2621
2622 static void
2623 mono_set_lmf_addr (gpointer lmf_addr)
2624 {
2625 #ifdef MONO_HAVE_FAST_TLS
2626 MONO_FAST_TLS_SET (mono_lmf_addr, lmf_addr);
2627 #endif
2628 }
2629
2630 /*
2631 * mono_jit_thread_attach:
2632 *
2633 * Called by native->managed wrappers. Returns the original domain which needs to be
2634 * restored, or NULL.
2635 */
2636 MonoDomain*
2637 mono_jit_thread_attach (MonoDomain *domain)
2638 {
2639 MonoDomain *orig;
2640
2641 if (!domain)
2642 /*
2643 * Happens when called from AOTed code which is only used in the root
2644 * domain.
2645 */
2646 domain = mono_get_root_domain ();
2647
2648 #ifdef MONO_HAVE_FAST_TLS
2649 if (!MONO_FAST_TLS_GET (mono_lmf_addr)) {
2650 mono_thread_attach (domain);
2651 // #678164
2652 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
2653 }
2654 #else
2655 if (!mono_native_tls_get_value (mono_jit_tls_id)) {
2656 mono_thread_attach (domain);
2657 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
2658 }
2659 #endif
2660 orig = mono_domain_get ();
2661 if (orig != domain)
2662 mono_domain_set (domain, TRUE);
2663
2664 return orig != domain ? orig : NULL;
2665 }
2666
2667 /* Called by native->managed wrappers */
2668 void
2669 mono_jit_set_domain (MonoDomain *domain)
2670 {
2671 if (domain)
2672 mono_domain_set (domain, TRUE);
2673 }
2674
2675 /**
2676 * mono_thread_abort:
2677 * @obj: exception object
2678 *
2679 * abort the thread, print exception information and stack trace
2680 */
2681 static void
2682 mono_thread_abort (MonoObject *obj)
2683 {
2684 /* MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id); */
2685
2686 /* handle_remove should be eventually called for this thread, too
2687 g_free (jit_tls);*/
2688
2689 if ((mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_LEGACY) ||
2690 (obj->vtable->klass == mono_defaults.threadabortexception_class)) {
2691 mono_thread_exit ();
2692 } else {
2693 mono_invoke_unhandled_exception_hook (obj);
2694 }
2695 }
2696
2697 static void*
2698 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
2699 {
2700 MonoJitTlsData *jit_tls;
2701 MonoLMF *lmf;
2702
2703 jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
2704 if (jit_tls)
2705 return jit_tls;
2706
2707 jit_tls = g_new0 (MonoJitTlsData, 1);
2708
2709 jit_tls->abort_func = abort_func;
2710 jit_tls->end_of_stack = stack_start;
2711
2712 mono_set_jit_tls (jit_tls);
2713
2714 lmf = g_new0 (MonoLMF, 1);
2715 MONO_ARCH_INIT_TOP_LMF_ENTRY (lmf);
2716
2717 jit_tls->first_lmf = lmf;
2718
2719 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2720 /* jit_tls->lmf is unused */
2721 MONO_FAST_TLS_SET (mono_lmf, lmf);
2722 mono_set_lmf_addr (MONO_FAST_TLS_ADDR (mono_lmf));
2723 #else
2724 mono_set_lmf_addr (&jit_tls->lmf);
2725
2726 jit_tls->lmf = lmf;
2727 #endif
2728
2729 mono_setup_altstack (jit_tls);
2730
2731 return jit_tls;
2732 }
2733
2734 static void
2735 free_jit_tls_data (MonoJitTlsData *jit_tls)
2736 {
2737 mono_arch_free_jit_tls_data (jit_tls);
2738 mono_free_altstack (jit_tls);
2739
2740 g_free (jit_tls->first_lmf);
2741 g_free (jit_tls);
2742 }
2743
2744 static void
2745 mono_thread_start_cb (intptr_t tid, gpointer stack_start, gpointer func)
2746 {
2747 MonoInternalThread *thread;
2748 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
2749 thread = mono_thread_internal_current ();
2750 mono_debugger_thread_created (tid, thread->root_domain_thread, jit_tls, func);
2751 if (thread)
2752 thread->jit_data = jit_tls;
2753
2754 mono_arch_cpu_init ();
2755 }
2756
2757 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
2758
2759 static void
2760 mono_thread_abort_dummy (MonoObject *obj)
2761 {
2762 if (mono_thread_attach_aborted_cb)
2763 mono_thread_attach_aborted_cb (obj);
2764 else
2765 mono_thread_abort (obj);
2766 }
2767
2768 static void
2769 mono_thread_attach_cb (intptr_t tid, gpointer stack_start)
2770 {
2771 MonoInternalThread *thread;
2772 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
2773 thread = mono_thread_internal_current ();
2774 mono_debugger_thread_created (tid, thread->root_domain_thread, (MonoJitTlsData *) jit_tls, NULL);
2775 if (thread)
2776 thread->jit_data = jit_tls;
2777 if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
2778 mono_runtime_setup_stat_profiler ();
2779
2780 mono_arch_cpu_init ();
2781 }
2782
2783 static void
2784 mini_thread_cleanup (MonoInternalThread *thread)
2785 {
2786 MonoJitTlsData *jit_tls = thread->jit_data;
2787
2788 if (jit_tls) {
2789 mono_debugger_thread_cleanup (jit_tls);
2790
2791 /* We can't clean up tls information if we are on another thread, it will clean up the wrong stuff
2792 * It would be nice to issue a warning when this happens outside of the shutdown sequence. but it's
2793 * not a trivial thing.
2794 *
2795 * The current offender is mono_thread_manage which cleanup threads from the outside.
2796 */
2797 if (thread == mono_thread_internal_current ())
2798 mono_set_jit_tls (NULL);
2799
2800 /* If we attach a thread but never call into managed land, we might never get an lmf.*/
2801 if (mono_get_lmf ()) {
2802 mono_set_lmf (NULL);
2803 mono_set_lmf_addr (NULL);
2804 }
2805
2806 free_jit_tls_data (jit_tls);
2807
2808 thread->jit_data = NULL;
2809 }
2810 }
2811
2812 static MonoInst*
2813 mono_create_tls_get (MonoCompile *cfg, int offset)
2814 {
2815 #ifdef MONO_ARCH_HAVE_TLS_GET
2816 if (MONO_ARCH_HAVE_TLS_GET) {
2817 MonoInst* ins;
2818
2819 if (offset == -1)
2820 return NULL;
2821
2822 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2823 ins->dreg = mono_alloc_preg (cfg);
2824 ins->inst_offset = offset;
2825 return ins;
2826 }
2827 #endif
2828 return NULL;
2829 }
2830
2831 MonoInst*
2832 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2833 {
2834 return mono_create_tls_get (cfg, mono_get_jit_tls_offset ());
2835 }
2836
2837 MonoInst*
2838 mono_get_domain_intrinsic (MonoCompile* cfg)
2839 {
2840 return mono_create_tls_get (cfg, mono_domain_get_tls_offset ());
2841 }
2842
2843 MonoInst*
2844 mono_get_thread_intrinsic (MonoCompile* cfg)
2845 {
2846 return mono_create_tls_get (cfg, mono_thread_get_tls_offset ());
2847 }
2848
2849 MonoInst*
2850 mono_get_lmf_intrinsic (MonoCompile* cfg)
2851 {
2852 return mono_create_tls_get (cfg, mono_get_lmf_tls_offset ());
2853 }
2854
2855 void
2856 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2857 {
2858 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2859
2860 ji->ip.i = ip;
2861 ji->type = type;
2862 ji->data.target = target;
2863 ji->next = cfg->patch_info;
2864
2865 cfg->patch_info = ji;
2866 }
2867
2868 MonoJumpInfo *
2869 mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target)
2870 {
2871 MonoJumpInfo *ji = g_new0 (MonoJumpInfo, 1);
2872
2873 ji->ip.i = ip;
2874 ji->type = type;
2875 ji->data.target = target;
2876 ji->next = list;
2877
2878 return ji;
2879 }
2880
2881 void
2882 mono_remove_patch_info (MonoCompile *cfg, int ip)
2883 {
2884 MonoJumpInfo **ji = &cfg->patch_info;
2885
2886 while (*ji) {
2887 if ((*ji)->ip.i == ip)
2888 *ji = (*ji)->next;
2889 else
2890 ji = &((*ji)->next);
2891 }
2892 }
2893
2894 /**
2895 * mono_patch_info_dup_mp:
2896 *
2897 * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
2898 */
2899 MonoJumpInfo*
2900 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
2901 {
2902 MonoJumpInfo *res = mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
2903 memcpy (res, patch_info, sizeof (MonoJumpInfo));
2904
2905 switch (patch_info->type) {
2906 case MONO_PATCH_INFO_RVA:
2907 case MONO_PATCH_INFO_LDSTR:
2908 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2909 case MONO_PATCH_INFO_LDTOKEN:
2910 case MONO_PATCH_INFO_DECLSEC:
2911 res->data.token = mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
2912 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
2913 break;
2914 case MONO_PATCH_INFO_SWITCH:
2915 res->data.table = mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
2916 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
2917 res->data.table->table = mono_mempool_alloc (mp, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2918 memcpy (res->data.table->table, patch_info->data.table->table, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2919 break;
2920 case MONO_PATCH_INFO_RGCTX_FETCH:
2921 res->data.rgctx_entry = mono_mempool_alloc (mp, sizeof (MonoJumpInfoRgctxEntry));
2922 memcpy (res->data.rgctx_entry, patch_info->data.rgctx_entry, sizeof (MonoJumpInfoRgctxEntry));
2923 res->data.rgctx_entry->data = mono_patch_info_dup_mp (mp, res->data.rgctx_entry->data);
2924 break;
2925 default:
2926 break;
2927 }
2928
2929 return res;
2930 }
2931
2932 guint
2933 mono_patch_info_hash (gconstpointer data)
2934 {
2935 const MonoJumpInfo *ji = (MonoJumpInfo*)data;
2936
2937 switch (ji->type) {
2938 case MONO_PATCH_INFO_RVA:
2939 case MONO_PATCH_INFO_LDSTR:
2940 case MONO_PATCH_INFO_LDTOKEN:
2941 case MONO_PATCH_INFO_DECLSEC:
2942 return (ji->type << 8) | ji->data.token->token;
2943 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2944 return (ji->type << 8) | ji->data.token->token | (ji->data.token->has_context ? (gsize)ji->data.token->context.class_inst : 0);
2945 case MONO_PATCH_INFO_INTERNAL_METHOD:
2946 return (ji->type << 8) | g_str_hash (ji->data.name);
2947 case MONO_PATCH_INFO_VTABLE:
2948 case MONO_PATCH_INFO_CLASS:
2949 case MONO_PATCH_INFO_IID:
2950 case MONO_PATCH_INFO_ADJUSTED_IID:
2951 case MONO_PATCH_INFO_CLASS_INIT:
2952 case MONO_PATCH_INFO_METHODCONST:
2953 case MONO_PATCH_INFO_METHOD:
2954 case MONO_PATCH_INFO_METHOD_JUMP:
2955 case MONO_PATCH_INFO_IMAGE:
2956 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2957 case MONO_PATCH_INFO_FIELD:
2958 case MONO_PATCH_INFO_SFLDA:
2959 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2960 return (ji->type << 8) | (gssize)ji->data.target;
2961 default:
2962 return (ji->type << 8);
2963 }
2964 }
2965
2966 /*
2967 * mono_patch_info_equal:
2968 *
2969 * This might fail to recognize equivalent patches, i.e. floats, so its only
2970 * usable in those cases where this is not a problem, i.e. sharing GOT slots
2971 * in AOT.
2972 */
2973 gint
2974 mono_patch_info_equal (gconstpointer ka, gconstpointer kb)
2975 {
2976 const MonoJumpInfo *ji1 = (MonoJumpInfo*)ka;
2977 const MonoJumpInfo *ji2 = (MonoJumpInfo*)kb;
2978
2979 if (ji1->type != ji2->type)
2980 return 0;
2981
2982 switch (ji1->type) {
2983 case MONO_PATCH_INFO_RVA:
2984 case MONO_PATCH_INFO_LDSTR:
2985 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2986 case MONO_PATCH_INFO_LDTOKEN:
2987 case MONO_PATCH_INFO_DECLSEC:
2988 if ((ji1->data.token->image != ji2->data.token->image) ||
2989 (ji1->data.token->token != ji2->data.token->token) ||
2990 (ji1->data.token->has_context != ji2->data.token->has_context) ||
2991 (ji1->data.token->context.class_inst != ji2->data.token->context.class_inst) ||
2992 (ji1->data.token->context.method_inst != ji2->data.token->context.method_inst))
2993 return 0;
2994 break;
2995 case MONO_PATCH_INFO_INTERNAL_METHOD:
2996 return g_str_equal (ji1->data.name, ji2->data.name);
2997
2998 case MONO_PATCH_INFO_RGCTX_FETCH: {
2999 MonoJumpInfoRgctxEntry *e1 = ji1->data.rgctx_entry;
3000 MonoJumpInfoRgctxEntry *e2 = ji2->data.rgctx_entry;
3001
3002 return e1->method == e2->method && e1->in_mrgctx == e2->in_mrgctx && e1->info_type == e2->info_type && mono_patch_info_equal (e1->data, e2->data);
3003 }
3004 default:
3005 if (ji1->data.target != ji2->data.target)
3006 return 0;
3007 break;
3008 }
3009
3010 return 1;
3011 }
3012
3013 gpointer
3014 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
3015 {
3016 unsigned char *ip = patch_info->ip.i + code;
3017 gconstpointer target = NULL;
3018
3019 switch (patch_info->type) {
3020 case MONO_PATCH_INFO_BB:
3021 /*
3022 * FIXME: This could be hit for methods without a prolog. Should use -1
3023 * but too much code depends on a 0 initial value.
3024 */
3025 //g_assert (patch_info->data.bb->native_offset);
3026 target = patch_info->data.bb->native_offset + code;
3027 break;
3028 case MONO_PATCH_INFO_ABS:
3029 target = patch_info->data.target;
3030 break;
3031 case MONO_PATCH_INFO_LABEL:
3032 target = patch_info->data.inst->inst_c0 + code;
3033 break;
3034 case MONO_PATCH_INFO_IP:
3035 #if defined(__native_client__) && defined(__native_client_codegen__)
3036 /* Need to transform to the destination address, it's */
3037 /* emitted as an immediate in the code. */
3038 target = nacl_inverse_modify_patch_target(ip);
3039 #else
3040 target = ip;
3041 #endif
3042 break;
3043 case MONO_PATCH_INFO_METHOD_REL:
3044 target = code + patch_info->data.offset;
3045 break;
3046 case MONO_PATCH_INFO_INTERNAL_METHOD: {
3047 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
3048 if (!mi) {
3049 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
3050 g_assert_not_reached ();
3051 }
3052 target = mono_icall_get_wrapper (mi);
3053 break;
3054 }
3055 case MONO_PATCH_INFO_METHOD_JUMP:
3056 target = mono_create_jump_trampoline (domain, patch_info->data.method, FALSE);
3057 #if defined(__native_client__) && defined(__native_client_codegen__)
3058 #if defined(TARGET_AMD64)
3059 /* This target is an absolute address, not relative to the */
3060 /* current code being emitted on AMD64. */
3061 target = nacl_inverse_modify_patch_target(target);
3062 #endif
3063 #endif
3064 break;
3065 case MONO_PATCH_INFO_METHOD:
3066 if (patch_info->data.method == method) {
3067 target = code;
3068 } else {
3069 /* get the trampoline to the method from the domain */
3070 target = mono_create_jit_trampoline_in_domain (domain, patch_info->data.method);
3071 }
3072 break;
3073 case MONO_PATCH_INFO_SWITCH: {
3074 gpointer *jump_table;
3075 int i;
3076
3077 #if defined(__native_client__) && defined(__native_client_codegen__)
3078 /* This memory will leak, but we don't care if we're */
3079 /* not deleting JIT'd methods anyway */
3080 jump_table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
3081 #else
3082 if (method && method->dynamic) {
3083 jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
3084 } else {
3085 if (mono_aot_only) {
3086 jump_table = mono_domain_alloc (domain, sizeof (gpointer) * patch_info->data.table->table_size);
3087 } else {
3088 jump_table = mono_domain_code_reserve (domain, sizeof (gpointer) * patch_info->data.table->table_size);
3089 }
3090 }
3091 #endif
3092
3093 for (i = 0; i < patch_info->data.table->table_size; i++) {
3094 #if defined(__native_client__) && defined(__native_client_codegen__)
3095 /* 'code' is relative to the current code blob, we */
3096 /* need to do this transform on it to make the */
3097 /* pointers in this table absolute */
3098 jump_table [i] = nacl_inverse_modify_patch_target (code) + GPOINTER_TO_INT (patch_info->data.table->table [i]);
3099 #else
3100 jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
3101 #endif
3102 }
3103
3104 #if defined(__native_client__) && defined(__native_client_codegen__)
3105 /* jump_table is in the data section, we need to transform */
3106 /* it here so when it gets modified in amd64_patch it will */
3107 /* then point back to the absolute data address */
3108 target = nacl_inverse_modify_patch_target (jump_table);
3109 #else
3110 target = jump_table;
3111 #endif
3112 break;
3113 }
3114 case MONO_PATCH_INFO_METHODCONST:
3115 case MONO_PATCH_INFO_CLASS:
3116 case MONO_PATCH_INFO_IMAGE:
3117 case MONO_PATCH_INFO_FIELD:
3118 case MONO_PATCH_INFO_SIGNATURE:
3119 target = patch_info->data.target;
3120 break;
3121 case MONO_PATCH_INFO_IID:
3122 mono_class_init (patch_info->data.klass);
3123 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
3124 break;
3125 case MONO_PATCH_INFO_ADJUSTED_IID:
3126 mono_class_init (patch_info->data.klass);
3127 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
3128 break;
3129 case MONO_PATCH_INFO_VTABLE:
3130 target = mono_class_vtable (domain, patch_info->data.klass);
3131 g_assert (target);
3132 break;
3133 case MONO_PATCH_INFO_CLASS_INIT: {
3134 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.klass);
3135
3136 g_assert (vtable);
3137 target = mono_create_class_init_trampoline (vtable);
3138 break;
3139 }
3140 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3141 target = mono_create_delegate_trampoline (domain, patch_info->data.klass);
3142 break;
3143 case MONO_PATCH_INFO_SFLDA: {
3144 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
3145
3146 if (mono_class_field_is_special_static (patch_info->data.field)) {
3147 gpointer addr = NULL;
3148
3149 mono_domain_lock (domain);
3150 if (domain->special_static_fields)
3151 addr = g_hash_table_lookup (domain->special_static_fields, patch_info->data.field);
3152 mono_domain_unlock (domain);
3153 g_assert (addr);
3154 return addr;
3155 }
3156
3157 g_assert (vtable);
3158 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
3159 /* Done by the generated code */
3160 ;
3161 else {
3162 if (run_cctors)
3163 mono_runtime_class_init (vtable);
3164 }
3165 target = (char*)mono_vtable_get_static_field_data (vtable) + patch_info->data.field->offset;
3166 break;
3167 }
3168 case MONO_PATCH_INFO_RVA: {
3169 guint32 field_index = mono_metadata_token_index (patch_info->data.token->token);
3170 guint32 rva;
3171
3172 mono_metadata_field_info (patch_info->data.token->image, field_index - 1, NULL, &rva, NULL);
3173 target = mono_image_rva_map (patch_info->data.token->image, rva);
3174 break;
3175 }
3176 case MONO_PATCH_INFO_R4:
3177 case MONO_PATCH_INFO_R8:
3178 target = patch_info->data.target;
3179 break;
3180 case MONO_PATCH_INFO_EXC_NAME:
3181 target = patch_info->data.name;
3182 break;
3183 case MONO_PATCH_INFO_LDSTR:
3184 target =
3185 mono_ldstr (domain, patch_info->data.token->image,
3186 mono_metadata_token_index (patch_info->data.token->token));
3187 break;
3188 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
3189 gpointer handle;
3190 MonoClass *handle_class;
3191
3192 handle = mono_ldtoken (patch_info->data.token->image,
3193 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL);
3194 mono_class_init (handle_class);
3195 mono_class_init (mono_class_from_mono_type (handle));
3196
3197 target =
3198 mono_type_get_object (domain, handle);
3199 break;
3200 }
3201 case MONO_PATCH_INFO_LDTOKEN: {
3202 gpointer handle;
3203 MonoClass *handle_class;
3204
3205 handle = mono_ldtoken (patch_info->data.token->image,
3206 patch_info->data.token->token, &handle_class, NULL);
3207 mono_class_init (handle_class);
3208
3209 target = handle;
3210 break;
3211 }
3212 case MONO_PATCH_INFO_DECLSEC:
3213 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
3214 break;
3215 case MONO_PATCH_INFO_ICALL_ADDR:
3216 /* run_cctors == 0 -> AOT */
3217 if (patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
3218 const char *exc_class;
3219 const char *exc_arg;
3220
3221 if (run_cctors) {
3222 target = mono_lookup_pinvoke_call (patch_info->data.method, &exc_class, &exc_arg);
3223 if (!target) {
3224 if (mono_aot_only)
3225 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
3226 g_error ("Unable to resolve pinvoke method '%s' Re-run with MONO_LOG_LEVEL=debug for more information.\n", mono_method_full_name (patch_info->data.method, TRUE));
3227 }
3228 } else {
3229 target = NULL;
3230 }
3231 } else {
3232 target = mono_lookup_internal_call (patch_info->data.method);
3233
3234 if (!target && run_cctors)
3235 g_error ("Unregistered icall '%s'\n", mono_method_full_name (patch_info->data.method, TRUE));
3236 }
3237 break;
3238 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3239 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
3240 if (!mi) {
3241 g_warning ("unknown MONO_PATCH_INFO_JIT_ICALL_ADDR %s", patch_info->data.name);
3242 g_assert_not_reached ();
3243 }
3244 target = mi->func;
3245 break;
3246 }
3247 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3248 target = mono_thread_interruption_request_flag ();
3249 break;
3250 case MONO_PATCH_INFO_METHOD_RGCTX: {
3251 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.method->klass);
3252 g_assert (vtable);
3253
3254 target = mono_method_lookup_rgctx (vtable, mini_method_get_context (patch_info->data.method)->method_inst);
3255 break;
3256 }
3257 case MONO_PATCH_INFO_BB_OVF:
3258 case MONO_PATCH_INFO_EXC_OVF:
3259 case MONO_PATCH_INFO_GOT_OFFSET:
3260 case MONO_PATCH_INFO_NONE:
3261 break;
3262 case MONO_PATCH_INFO_RGCTX_FETCH: {
3263 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3264 guint32 slot = -1;
3265
3266 switch (entry->data->type) {
3267 case MONO_PATCH_INFO_CLASS:
3268 slot = mono_method_lookup_or_register_info (entry->method, entry->in_mrgctx, &entry->data->data.klass->byval_arg, entry->info_type, mono_method_get_context (entry->method));
3269 break;
3270 case MONO_PATCH_INFO_METHOD:
3271 case MONO_PATCH_INFO_METHODCONST:
3272 slot = mono_method_lookup_or_register_info (entry->method, entry->in_mrgctx, entry->data->data.method, entry->info_type, mono_method_get_context (entry->method));
3273 break;
3274 case MONO_PATCH_INFO_FIELD:
3275 slot = mono_method_lookup_or_register_info (entry->method, entry->in_mrgctx, entry->data->data.field, entry->info_type, mono_method_get_context (entry->method));
3276 break;
3277 default:
3278 g_assert_not_reached ();
3279 break;
3280 }
3281
3282 target = mono_create_rgctx_lazy_fetch_trampoline (slot);
3283 break;
3284 }
3285 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3286 target = mono_create_generic_class_init_trampoline ();
3287 break;
3288 case MONO_PATCH_INFO_MONITOR_ENTER:
3289 target = mono_create_monitor_enter_trampoline ();
3290 break;
3291 case MONO_PATCH_INFO_MONITOR_EXIT:
3292 target = mono_create_monitor_exit_trampoline ();
3293 break;
3294 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
3295 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3296 if (!run_cctors)
3297 /* AOT, not needed */
3298 target = NULL;
3299 else
3300 target = mono_arch_get_seq_point_info (domain, code);
3301 break;
3302 #endif
3303 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
3304 #ifdef MONO_ARCH_LLVM_SUPPORTED
3305 g_assert (mono_use_llvm);
3306 target = mono_create_llvm_imt_trampoline (domain, patch_info->data.imt_tramp->method, patch_info->data.imt_tramp->vt_offset);
3307 #else
3308 g_assert_not_reached ();
3309 #endif
3310 break;
3311 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR: {
3312 int card_table_shift_bits;
3313 gpointer card_table_mask;
3314
3315 target = mono_gc_get_card_table (&card_table_shift_bits, &card_table_mask);
3316 break;
3317 }
3318 case MONO_PATCH_INFO_CASTCLASS_CACHE: {
3319 target = mono_domain_alloc0 (domain, sizeof (gpointer));
3320 break;
3321 }
3322 default:
3323 g_assert_not_reached ();
3324 }
3325
3326 return (gpointer)target;
3327 }
3328
3329 void
3330 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
3331 {
3332 ins->inst_offset = native_offset;
3333 g_ptr_array_add (cfg->seq_points, ins);
3334 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
3335 bb->last_seq_point = ins;
3336 }
3337
3338 void
3339 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
3340 {
3341 MonoDwarfLocListEntry *entry = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
3342
3343 if (is_reg)
3344 g_assert (offset == 0);
3345
3346 entry->is_reg = is_reg;
3347 entry->reg = reg;
3348 entry->offset = offset;
3349 entry->from = from;
3350 entry->to = to;
3351
3352 if (var == cfg->args [0])
3353 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
3354 else if (var == cfg->rgctx_var)
3355 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
3356 }
3357
3358 #ifndef DISABLE_JIT
3359
3360 static void
3361 mono_compile_create_vars (MonoCompile *cfg)
3362 {
3363 MonoMethodSignature *sig;
3364 MonoMethodHeader *header;
3365 int i;
3366
3367 header = cfg->header;
3368
3369 sig = mono_method_signature (cfg->method);
3370
3371 if (!MONO_TYPE_IS_VOID (sig->ret)) {
3372 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
3373 /* Inhibit optimizations */
3374 cfg->ret->flags |= MONO_INST_VOLATILE;
3375 }
3376 if (cfg->verbose_level > 2)
3377 g_print ("creating vars\n");
3378
3379 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
3380
3381 if (sig->hasthis)
3382 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
3383
3384 for (i = 0; i < sig->param_count; ++i) {
3385 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
3386 }
3387
3388 if (cfg->verbose_level > 2) {
3389 if (cfg->ret) {
3390 printf ("\treturn : ");
3391 mono_print_ins (cfg->ret);
3392 }
3393
3394 if (sig->hasthis) {
3395 printf ("\tthis: ");
3396 mono_print_ins (cfg->args [0]);
3397 }
3398
3399 for (i = 0; i < sig->param_count; ++i) {
3400 printf ("\targ [%d]: ", i);
3401 mono_print_ins (cfg->args [i + sig->hasthis]);
3402 }
3403 }
3404
3405 cfg->locals_start = cfg->num_varinfo;
3406 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
3407
3408 if (cfg->verbose_level > 2)
3409 g_print ("creating locals\n");
3410
3411 for (i = 0; i < header->num_locals; ++i)
3412 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
3413
3414 if (cfg->verbose_level > 2)
3415 g_print ("locals done\n");
3416
3417 mono_arch_create_vars (cfg);
3418 }
3419
3420 #endif /* #ifndef DISABLE_JIT */
3421
3422 void
3423 mono_print_code (MonoCompile *cfg, const char* msg)
3424 {
3425 MonoBasicBlock *bb;
3426
3427 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3428 mono_print_bb (bb, msg);
3429 }
3430
3431 #ifndef DISABLE_JIT
3432
3433 static void
3434 mono_postprocess_patches (MonoCompile *cfg)
3435 {
3436 MonoJumpInfo *patch_info;
3437 int i;
3438
3439 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3440 switch (patch_info->type) {
3441 case MONO_PATCH_INFO_ABS: {
3442 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
3443
3444 /*
3445 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
3446 * absolute address.
3447 */
3448 if (info) {
3449 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
3450 // FIXME: CLEAN UP THIS MESS.
3451 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
3452 strstr (cfg->method->name, info->name)) {
3453 /*
3454 * This is an icall wrapper, and this is a call to the
3455 * wrapped function.
3456 */
3457 if (cfg->compile_aot) {
3458 patch_info->type = MONO_PATCH_INFO_JIT_ICALL_ADDR;
3459 patch_info->data.name = info->name;
3460 }
3461 } else {
3462 /* for these array methods we currently register the same function pointer
3463 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
3464 * will return the incorrect one depending on the order they are registered.
3465 * See tests/test-arr.cs
3466 */
3467 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
3468 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
3469 patch_info->data.name = info->name;
3470 }
3471 }
3472 }
3473
3474 if (patch_info->type == MONO_PATCH_INFO_ABS) {
3475 if (cfg->abs_patches) {
3476 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
3477 if (abs_ji) {
3478 patch_info->type = abs_ji->type;
3479 patch_info->data.target = abs_ji->data.target;
3480 }
3481 }
3482 }
3483
3484 break;
3485 }
3486 case MONO_PATCH_INFO_SWITCH: {
3487 gpointer *table;
3488 #if defined(__native_client__) && defined(__native_client_codegen__)
3489 /* This memory will leak. */
3490 /* TODO: can we free this when */
3491 /* making the final jump table? */
3492 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
3493 #else
3494 if (cfg->method->dynamic) {
3495 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
3496 } else {
3497 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
3498 }
3499 #endif
3500
3501 for (i = 0; i < patch_info->data.table->table_size; i++) {
3502 /* Might be NULL if the switch is eliminated */
3503 if (patch_info->data.table->table [i]) {
3504 g_assert (patch_info->data.table->table [i]->native_offset);
3505 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
3506 } else {
3507 table [i] = NULL;
3508 }
3509 }
3510 patch_info->data.table->table = (MonoBasicBlock**)table;
3511 break;
3512 }
3513 case MONO_PATCH_INFO_METHOD_JUMP: {
3514 MonoJumpList *jlist;
3515 MonoDomain *domain = cfg->domain;
3516 unsigned char *ip = cfg->native_code + patch_info->ip.i;
3517 #if defined(__native_client__) && defined(__native_client_codegen__)
3518 /* When this jump target gets evaluated, the method */
3519 /* will be installed in the dynamic code section, */
3520 /* not at the location of cfg->native_code. */
3521 ip = nacl_inverse_modify_patch_target (cfg->native_code) + patch_info->ip.i;
3522 #endif
3523
3524 mono_domain_lock (domain);
3525 jlist = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
3526 if (!jlist) {
3527 jlist = mono_domain_alloc0 (domain, sizeof (MonoJumpList));
3528 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
3529 }
3530 jlist->list = g_slist_prepend (jlist->list, ip);
3531 mono_domain_unlock (domain);
3532 break;
3533 }
3534 default:
3535 /* do nothing */
3536 break;
3537 }
3538 }
3539 }
3540
3541 static void
3542 collect_pred_seq_points (MonoBasicBlock *bb, MonoInst *ins, GSList **next, int depth)
3543 {
3544 int i;
3545 MonoBasicBlock *in_bb;
3546 GSList *l;
3547
3548 for (i = 0; i < bb->in_count; ++i) {
3549 in_bb = bb->in_bb [i];
3550
3551 if (in_bb->last_seq_point) {
3552 int src_index = in_bb->last_seq_point->backend.size;
3553 int dst_index = ins->backend.size;
3554
3555 /* bb->in_bb might contain duplicates */
3556 for (l = next [src_index]; l; l = l->next)
3557 if (GPOINTER_TO_UINT (l->data) == dst_index)
3558 break;
3559 if (!l)
3560 next [src_index] = g_slist_append (next [src_index], GUINT_TO_POINTER (dst_index));
3561 } else {
3562 /* Have to look at its predecessors */
3563 if (depth < 5)
3564 collect_pred_seq_points (in_bb, ins, next, depth + 1);
3565 }
3566 }
3567 }
3568
3569 static void
3570 mono_save_seq_point_info (MonoCompile *cfg)
3571 {
3572 MonoBasicBlock *bb;
3573 GSList *bb_seq_points, *l;
3574 MonoInst *last;
3575 MonoDomain *domain = cfg->domain;
3576 int i;
3577 MonoSeqPointInfo *info;
3578 GSList **next;
3579
3580 if (!cfg->seq_points)
3581 return;
3582
3583 info = g_malloc0 (sizeof (MonoSeqPointInfo) + (cfg->seq_points->len - MONO_ZERO_LEN_ARRAY) * sizeof (SeqPoint));
3584 info->len = cfg->seq_points->len;
3585 for (i = 0; i < cfg->seq_points->len; ++i) {
3586 SeqPoint *sp = &info->seq_points [i];
3587 MonoInst *ins = g_ptr_array_index (cfg->seq_points, i);
3588
3589 sp->il_offset = ins->inst_imm;
3590 sp->native_offset = ins->inst_offset;
3591
3592 /* Used below */
3593 ins->backend.size = i;
3594 }
3595
3596 /*
3597 * For each sequence point, compute the list of sequence points immediately
3598 * following it, this is needed to implement 'step over' in the debugger agent.
3599 */
3600 next = g_new0 (GSList*, cfg->seq_points->len);
3601 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3602 bb_seq_points = g_slist_reverse (bb->seq_points);
3603 last = NULL;
3604 for (l = bb_seq_points; l; l = l->next) {
3605 MonoInst *ins = l->data;
3606
3607 if (ins->inst_imm == METHOD_ENTRY_IL_OFFSET || ins->inst_imm == METHOD_EXIT_IL_OFFSET)
3608 /* Used to implement method entry/exit events */
3609 continue;
3610
3611 if (last != NULL) {
3612 /* Link with the previous seq point in the same bb */
3613 next [last->backend.size] = g_slist_append (next [last->backend.size], GUINT_TO_POINTER (ins->backend.size));
3614 } else {
3615 /* Link with the last bb in the previous bblocks */
3616 collect_pred_seq_points (bb, ins, next, 0);
3617 }
3618
3619 last = ins;
3620 }
3621
3622 if (bb->last_ins && bb->last_ins->opcode == OP_ENDFINALLY) {
3623 MonoBasicBlock *bb2;
3624 MonoInst *endfinally_seq_point = NULL;
3625
3626 /*
3627 * The ENDFINALLY branches are not represented in the cfg, so link it with all seq points starting bbs.
3628 */
3629 l = g_slist_last (bb->seq_points);
3630 g_assert (l);
3631 endfinally_seq_point = l->data;
3632
3633 for (bb2 = cfg->bb_entry; bb2; bb2 = bb2->next_bb) {
3634 GSList *l = g_slist_last (bb2->seq_points);
3635
3636 if (l) {
3637 MonoInst *ins = l->data;
3638
3639 if (!(ins->inst_imm == METHOD_ENTRY_IL_OFFSET || ins->inst_imm == METHOD_EXIT_IL_OFFSET) && ins != endfinally_seq_point)
3640 next [endfinally_seq_point->backend.size] = g_slist_append (next [endfinally_seq_point->backend.size], GUINT_TO_POINTER (ins->backend.size));
3641 }
3642 }
3643 }
3644 }
3645
3646 if (cfg->verbose_level > 2) {
3647 printf ("\nSEQ POINT MAP: \n");
3648 }
3649
3650 for (i = 0; i < cfg->seq_points->len; ++i) {
3651 SeqPoint *sp = &info->seq_points [i];
3652 GSList *l;
3653 int j, next_index;
3654
3655 sp->next_len = g_slist_length (next [i]);
3656 sp->next = g_new (int, sp->next_len);
3657 j = 0;
3658 if (cfg->verbose_level > 2 && next [i]) {
3659 printf ("\tIL0x%x ->", sp->il_offset);
3660 for (l = next [i]; l; l = l->next) {
3661 next_index = GPOINTER_TO_UINT (l->data);
3662 printf (" IL0x%x", info->seq_points [next_index].il_offset);
3663 }
3664 printf ("\n");
3665 }
3666 for (l = next [i]; l; l = l->next) {
3667 next_index = GPOINTER_TO_UINT (l->data);
3668 sp->next [j ++] = next_index;
3669 }
3670 g_slist_free (next [i]);
3671 }
3672 g_free (next);
3673
3674 cfg->seq_point_info = info;
3675
3676 // FIXME: dynamic methods
3677 if (!cfg->compile_aot) {
3678 mono_domain_lock (domain);
3679 // FIXME: How can the lookup succeed ?
3680 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, cfg->method_to_register))
3681 g_hash_table_insert (domain_jit_info (domain)->seq_points, cfg->method_to_register, info);
3682 mono_domain_unlock (domain);
3683 }
3684
3685 g_ptr_array_free (cfg->seq_points, TRUE);
3686 cfg->seq_points = NULL;
3687 }
3688
3689 void
3690 mono_codegen (MonoCompile *cfg)
3691 {
3692 MonoBasicBlock *bb;
3693 int max_epilog_size;
3694 guint8 *code;
3695 MonoDomain *code_domain;
3696
3697 if (mono_using_xdebug)
3698 /*
3699 * Recent gdb versions have trouble processing symbol files containing
3700 * overlapping address ranges, so allocate all code from the code manager
3701 * of the root domain. (#666152).
3702 */
3703 code_domain = mono_get_root_domain ();
3704 else
3705 code_domain = cfg->domain;
3706
3707 #if defined(__native_client_codegen__) && defined(__native_client__)
3708 void *code_dest;
3709
3710 /* This keeps patch targets from being transformed during
3711 * ordinary method compilation, for local branches and jumps.
3712 */
3713 nacl_allow_target_modification (FALSE);
3714 #endif
3715
3716 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3717 cfg->spill_count = 0;
3718 /* we reuse dfn here */
3719 /* bb->dfn = bb_count++; */
3720
3721 mono_arch_lowering_pass (cfg, bb);
3722
3723 if (cfg->opt & MONO_OPT_PEEPHOLE)
3724 mono_arch_peephole_pass_1 (cfg, bb);
3725
3726 if (!cfg->globalra)
3727 mono_local_regalloc (cfg, bb);
3728
3729 if (cfg->opt & MONO_OPT_PEEPHOLE)
3730 mono_arch_peephole_pass_2 (cfg, bb);
3731 }
3732
3733 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
3734 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
3735
3736 code = mono_arch_emit_prolog (cfg);
3737
3738 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
3739 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
3740
3741 cfg->code_len = code - cfg->native_code;
3742 cfg->prolog_end = cfg->code_len;
3743
3744 mono_debug_open_method (cfg);
3745
3746 /* emit code all basic blocks */
3747 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3748 bb->native_offset = cfg->code_len;
3749 bb->real_native_offset = cfg->code_len;
3750 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
3751 mono_arch_output_basic_block (cfg, bb);
3752 bb->native_length = cfg->code_len - bb->native_offset;
3753
3754 if (bb == cfg->bb_exit) {
3755 cfg->epilog_begin = cfg->code_len;
3756
3757 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
3758 code = cfg->native_code + cfg->code_len;
3759 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
3760 cfg->code_len = code - cfg->native_code;
3761 g_assert (cfg->code_len < cfg->code_size);
3762 }
3763
3764 mono_arch_emit_epilog (cfg);
3765 }
3766 }
3767
3768 #ifdef __native_client_codegen__
3769 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
3770 #endif
3771 mono_arch_emit_exceptions (cfg);
3772
3773 max_epilog_size = 0;
3774
3775 /* we always allocate code in cfg->domain->code_mp to increase locality */
3776 cfg->code_size = cfg->code_len + max_epilog_size;
3777 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
3778
3779 if (cfg->method->dynamic) {
3780 guint unwindlen = 0;
3781 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3782 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3783 #endif
3784 /* Allocate the code into a separate memory pool so it can be freed */
3785 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
3786 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
3787 mono_domain_lock (cfg->domain);
3788 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
3789 mono_domain_unlock (cfg->domain);
3790
3791 if (mono_using_xdebug)
3792 /* See the comment for cfg->code_domain */
3793 code = mono_domain_code_reserve (code_domain, cfg->code_size + unwindlen);
3794 else
3795 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + unwindlen);
3796 } else {
3797 guint unwindlen = 0;
3798 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3799 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3800 #endif
3801 code = mono_domain_code_reserve (code_domain, cfg->code_size + unwindlen);
3802 }
3803 #if defined(__native_client_codegen__) && defined(__native_client__)
3804 nacl_allow_target_modification (TRUE);
3805 #endif
3806
3807 g_assert (code);
3808 memcpy (code, cfg->native_code, cfg->code_len);
3809 #if defined(__default_codegen__)
3810 g_free (cfg->native_code);
3811 #elif defined(__native_client_codegen__)
3812 if (cfg->native_code_alloc) {
3813 g_free (cfg->native_code_alloc);
3814 cfg->native_code_alloc = 0;
3815 }
3816 else if (cfg->native_code) {
3817 g_free (cfg->native_code);
3818 }
3819 #endif /* __native_client_codegen__ */
3820 cfg->native_code = code;
3821 code = cfg->native_code + cfg->code_len;
3822
3823 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
3824 mono_postprocess_patches (cfg);
3825
3826 #ifdef VALGRIND_JIT_REGISTER_MAP
3827 if (valgrind_register){
3828 char* nm = mono_method_full_name (cfg->method, TRUE);
3829 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
3830 g_free (nm);
3831 }
3832 #endif
3833
3834 if (cfg->verbose_level > 0) {
3835 char* nm = mono_method_full_name (cfg->method, TRUE);
3836 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
3837 nm,
3838 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3839 g_free (nm);
3840 }
3841
3842 {
3843 gboolean is_generic = FALSE;
3844
3845 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
3846 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
3847 is_generic = TRUE;
3848 }
3849
3850 if (cfg->generic_sharing_context)
3851 g_assert (is_generic);
3852 }
3853
3854 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
3855 mono_arch_save_unwind_info (cfg);
3856 #endif
3857
3858 #if defined(__native_client_codegen__) && defined(__native_client__)
3859 if (!cfg->compile_aot) {
3860 if (cfg->method->dynamic) {
3861 code_dest = nacl_code_manager_get_code_dest(cfg->dynamic_info->code_mp, cfg->native_code);
3862 } else {
3863 code_dest = nacl_domain_get_code_dest(cfg->domain, cfg->native_code);
3864 }
3865 }
3866 #endif
3867
3868 #if defined(__native_client_codegen__)
3869 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
3870 #endif
3871
3872 mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->dynamic_info ? cfg->dynamic_info->code_mp : NULL, cfg->run_cctors);
3873
3874 if (cfg->method->dynamic) {
3875 if (mono_using_xdebug)
3876 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
3877 else
3878 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
3879 } else {
3880 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
3881 }
3882 #if defined(__native_client_codegen__) && defined(__native_client__)
3883 cfg->native_code = code_dest;
3884 #endif
3885 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
3886
3887 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
3888
3889 mono_debug_close_method (cfg);
3890
3891 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3892 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
3893 #endif
3894 }
3895
3896 static void
3897 compute_reachable (MonoBasicBlock *bb)
3898 {
3899 int i;
3900
3901 if (!(bb->flags & BB_VISITED)) {
3902 bb->flags |= BB_VISITED;
3903 for (i = 0; i < bb->out_count; ++i)
3904 compute_reachable (bb->out_bb [i]);
3905 }
3906 }
3907
3908 static void
3909 mono_handle_out_of_line_bblock (MonoCompile *cfg)
3910 {
3911 MonoBasicBlock *bb;
3912 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3913 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
3914 MonoInst *ins;
3915 MONO_INST_NEW (cfg, ins, OP_BR);
3916 MONO_ADD_INS (bb, ins);
3917 ins->inst_target_bb = bb->next_bb;
3918 }
3919 }
3920 }
3921
3922 #endif /* #ifndef DISABLE_JIT */
3923
3924 static MonoJitInfo*
3925 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
3926 {
3927 MonoDomain *domain = mono_get_root_domain ();
3928 MonoJitInfo *jinfo;
3929 guint8 *uw_info;
3930 guint32 info_len;
3931
3932 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
3933
3934 jinfo = mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
3935 jinfo->method = wrapper;
3936 jinfo->code_start = info->code;
3937 jinfo->code_size = info->code_size;
3938 jinfo->used_regs = mono_cache_unwind_info (uw_info, info_len);
3939
3940 return jinfo;
3941 }
3942
3943 #ifndef DISABLE_JIT
3944
3945 static MonoJitInfo*
3946 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
3947 {
3948 GSList *tmp;
3949 MonoMethodHeader *header;
3950 MonoJitInfo *jinfo;
3951 int num_clauses;
3952 int generic_info_size, arch_eh_info_size = 0;
3953 int holes_size = 0, num_holes = 0, cas_size = 0;
3954 guint32 stack_size = 0;
3955
3956 g_assert (method_to_compile == cfg->method);
3957 header = cfg->header;
3958
3959 if (cfg->generic_sharing_context)
3960 generic_info_size = sizeof (MonoGenericJitInfo);
3961 else
3962 generic_info_size = 0;
3963
3964 if (cfg->arch_eh_jit_info) {
3965 MonoJitArgumentInfo *arg_info;
3966 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
3967
3968 /*
3969 * This cannot be computed during stack walking, as
3970 * mono_arch_get_argument_info () is not signal safe.
3971 */
3972 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
3973 stack_size = mono_arch_get_argument_info (cfg->generic_sharing_context, sig, sig->param_count, arg_info);
3974
3975 if (stack_size)
3976 arch_eh_info_size = sizeof (MonoArchEHJitInfo);
3977 }
3978
3979 if (cfg->try_block_holes) {
3980 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3981 TryBlockHole *hole = tmp->data;
3982 MonoExceptionClause *ec = hole->clause;
3983 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
3984 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3985 g_assert (clause_last_bb);
3986
3987 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
3988 if (clause_last_bb->native_offset != hole_end)
3989 ++num_holes;
3990 }
3991 if (num_holes)
3992 holes_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
3993 if (G_UNLIKELY (cfg->verbose_level >= 4))
3994 printf ("Number of try block holes %d\n", num_holes);
3995 }
3996
3997 if (mono_method_has_declsec (cfg->method_to_register)) {
3998 cas_size = sizeof (MonoMethodCasInfo);
3999 }
4000
4001 if (COMPILE_LLVM (cfg))
4002 num_clauses = cfg->llvm_ex_info_len;
4003 else
4004 num_clauses = header->num_clauses;
4005
4006 if (cfg->method->dynamic) {
4007 jinfo = g_malloc0 (MONO_SIZEOF_JIT_INFO + (num_clauses * sizeof (MonoJitExceptionInfo)) +
4008 generic_info_size + holes_size + arch_eh_info_size + cas_size);
4009 } else {
4010 jinfo = mono_domain_alloc0 (cfg->domain, MONO_SIZEOF_JIT_INFO +
4011 (num_clauses * sizeof (MonoJitExceptionInfo)) +
4012 generic_info_size + holes_size + arch_eh_info_size + cas_size);
4013 }
4014
4015 jinfo->method = cfg->method_to_register;
4016 jinfo->code_start = cfg->native_code;
4017 jinfo->code_size = cfg->code_len;
4018 jinfo->used_regs = cfg->used_int_regs;
4019 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
4020 jinfo->num_clauses = num_clauses;
4021
4022 if (COMPILE_LLVM (cfg))
4023 jinfo->from_llvm = TRUE;
4024
4025 if (cfg->generic_sharing_context) {
4026 MonoInst *inst;
4027 MonoGenericJitInfo *gi;
4028 GSList *loclist = NULL;
4029
4030 jinfo->has_generic_jit_info = 1;
4031
4032 gi = mono_jit_info_get_generic_jit_info (jinfo);
4033 g_assert (gi);
4034
4035 if (cfg->method->dynamic)
4036 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
4037 else
4038 gi->generic_sharing_context = mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
4039 memcpy (gi->generic_sharing_context, cfg->generic_sharing_context, sizeof (MonoGenericSharingContext));
4040
4041 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
4042 mini_method_get_context (method_to_compile)->method_inst ||
4043 method_to_compile->klass->valuetype) {
4044 g_assert (cfg->rgctx_var);
4045 }
4046
4047 gi->has_this = 1;
4048
4049 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
4050 mini_method_get_context (method_to_compile)->method_inst ||
4051 method_to_compile->klass->valuetype) {
4052 inst = cfg->rgctx_var;
4053 if (!COMPILE_LLVM (cfg))
4054 g_assert (inst->opcode == OP_REGOFFSET);
4055 loclist = cfg->rgctx_loclist;
4056 } else {
4057 inst = cfg->args [0];
4058 loclist = cfg->this_loclist;
4059 }
4060
4061 if (loclist) {
4062 /* Needed to handle async exceptions */
4063 GSList *l;
4064 int i;
4065
4066 gi->nlocs = g_slist_length (loclist);
4067 if (cfg->method->dynamic)
4068 gi->locations = g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
4069 else
4070 gi->locations = mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
4071 i = 0;
4072 for (l = loclist; l; l = l->next) {
4073 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
4074 i ++;
4075 }
4076 }
4077
4078 if (COMPILE_LLVM (cfg)) {
4079 g_assert (cfg->llvm_this_reg != -1);
4080 gi->this_in_reg = 0;
4081 gi->this_reg = cfg->llvm_this_reg;
4082 gi->this_offset = cfg->llvm_this_offset;
4083 } else if (inst->opcode == OP_REGVAR) {
4084 gi->this_in_reg = 1;
4085 gi->this_reg = inst->dreg;
4086 } else {
4087 g_assert (inst->opcode == OP_REGOFFSET);
4088 #ifdef TARGET_X86
4089 g_assert (inst->inst_basereg == X86_EBP);
4090 #elif defined(TARGET_AMD64)
4091 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
4092 #endif
4093 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
4094
4095 gi->this_in_reg = 0;
4096 gi->this_reg = inst->inst_basereg;
4097 gi->this_offset = inst->inst_offset;
4098 }
4099 }
4100
4101 if (num_holes) {
4102 MonoTryBlockHoleTableJitInfo *table;
4103 int i;
4104
4105 jinfo->has_try_block_holes = 1;
4106 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4107 table->num_holes = (guint16)num_holes;
4108 i = 0;
4109 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
4110 guint32 start_bb_offset;
4111 MonoTryBlockHoleJitInfo *hole;
4112 TryBlockHole *hole_data = tmp->data;
4113 MonoExceptionClause *ec = hole_data->clause;
4114 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
4115 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
4116 g_assert (clause_last_bb);
4117
4118 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
4119 if (clause_last_bb->native_offset == hole_end)
4120 continue;
4121
4122 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
4123 hole = &table->holes [i++];
4124 hole->clause = hole_data->clause - &header->clauses [0];
4125 hole->offset = (guint32)hole_data->start_offset;
4126 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
4127
4128 if (G_UNLIKELY (cfg->verbose_level >= 4))
4129 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
4130 }
4131 g_assert (i == num_holes);
4132 }
4133
4134 if (arch_eh_info_size) {
4135 MonoArchEHJitInfo *info;
4136
4137 jinfo->has_arch_eh_info = 1;
4138 info = mono_jit_info_get_arch_eh_info (jinfo);
4139
4140 info->stack_size = stack_size;
4141 }
4142
4143 if (cas_size) {
4144 jinfo->has_cas_info = 1;
4145 }
4146
4147 if (COMPILE_LLVM (cfg)) {
4148 if (num_clauses)
4149 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
4150 } else if (header->num_clauses) {
4151 int i;
4152
4153 for (i = 0; i < header->num_clauses; i++) {
4154 MonoExceptionClause *ec = &header->clauses [i];
4155 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
4156 MonoBasicBlock *tblock;
4157 MonoInst *exvar;
4158
4159 ei->flags = ec->flags;
4160
4161 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
4162 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
4163
4164 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
4165 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
4166 g_assert (tblock);
4167 ei->data.filter = cfg->native_code + tblock->native_offset;
4168 } else {
4169 ei->data.catch_class = ec->data.catch_class;
4170 }
4171
4172 tblock = cfg->cil_offset_to_bb [ec->try_offset];
4173 g_assert (tblock);
4174 g_assert (tblock->native_offset);
4175 ei->try_start = cfg->native_code + tblock->native_offset;
4176 if (tblock->extend_try_block) {
4177 /*
4178 * Extend the try block backwards to include parts of the previous call
4179 * instruction.
4180 */
4181 ei->try_start = (guint8*)ei->try_start - MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
4182 }
4183 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
4184 g_assert (tblock);
4185 if (!tblock->native_offset) {
4186 int j, end;
4187 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
4188 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
4189 if (bb && bb->native_offset) {
4190 tblock = bb;
4191 break;
4192 }
4193 }
4194 }
4195 ei->try_end = cfg->native_code + tblock->native_offset;
4196 g_assert (tblock->native_offset);
4197 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
4198 g_assert (tblock);
4199 ei->handler_start = cfg->native_code + tblock->native_offset;
4200
4201 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
4202 TryBlockHole *hole = tmp->data;
4203 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
4204 if (hole->clause == ec && hole_end == ei->try_end) {
4205 if (G_UNLIKELY (cfg->verbose_level >= 4))
4206 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
4207
4208 ei->try_end = cfg->native_code + hole->start_offset;
4209 break;
4210 }
4211 }
4212
4213 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
4214 int end_offset;
4215 if (ec->handler_offset + ec->handler_len < header->code_size) {
4216 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
4217 g_assert (tblock);
4218 end_offset = tblock->native_offset;
4219 } else {
4220 end_offset = cfg->epilog_begin;
4221 }
4222 ei->data.handler_end = cfg->native_code + end_offset;
4223 }
4224 }
4225 }
4226
4227 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
4228 int i;
4229 for (i = 0; i < jinfo->num_clauses; i++) {
4230 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
4231 int start = (guint8*)ei->try_start - cfg->native_code;
4232 int end = (guint8*)ei->try_end - cfg->native_code;
4233 int handler = (guint8*)ei->handler_start - cfg->native_code;
4234
4235 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x\n", i, ei->flags, start, end, handler);
4236 }
4237 }
4238
4239 /*
4240 * Its possible to generate dwarf unwind info for xdebug etc, but not actually
4241 * using it during runtime, hence the define.
4242 */
4243 #ifdef MONO_ARCH_HAVE_XP_UNWIND
4244 if (cfg->encoded_unwind_ops) {
4245 jinfo->used_regs = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
4246 g_free (cfg->encoded_unwind_ops);
4247 } else if (cfg->unwind_ops) {
4248 guint32 info_len;
4249 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
4250
4251 jinfo->used_regs = mono_cache_unwind_info (unwind_info, info_len);
4252 g_free (unwind_info);
4253 }
4254 #endif
4255
4256 return jinfo;
4257 }
4258 #endif
4259
4260 static MonoType*
4261 get_gsharedvt_type (MonoType *t)
4262 {
4263 MonoGenericParam *par = t->data.generic_param;
4264 MonoType *res;
4265
4266 /*
4267 * Create an anonymous gparam with a different serial so normal gshared and gsharedvt methods have
4268 * a different instantiation.
4269 */
4270 g_assert (mono_generic_param_info (par));
4271 par = g_memdup (par, sizeof (MonoGenericParamFull));
4272 par->owner = NULL;
4273 // FIXME:
4274 par->image = mono_defaults.corlib;
4275 par->serial = 1;
4276 res = mono_metadata_type_dup (NULL, t);
4277 res->data.generic_param = par;
4278
4279 return res;
4280 }
4281
4282 static gboolean
4283 is_gsharedvt_type (MonoType *t)
4284 {
4285 return (t->type == MONO_TYPE_VAR || t->type == MONO_TYPE_MVAR) && t->data.generic_param->serial == 1;
4286 }
4287
4288 /* Return whenever METHOD is a gsharedvt method */
4289 static gboolean
4290 is_gsharedvt_method (MonoMethod *method)
4291 {
4292 MonoGenericContext *context;
4293 MonoGenericInst *inst;
4294 int i;
4295
4296 if (!method->is_inflated)
4297 return FALSE;
4298 context = mono_method_get_context (method);
4299 inst = context->class_inst;
4300 if (inst) {
4301 for (i = 0; i < inst->type_argc; ++i)
4302 if (is_gsharedvt_type (inst->type_argv [i]))
4303 return TRUE;
4304 }
4305 inst = context->method_inst;
4306 if (inst) {
4307 for (i = 0; i < inst->type_argc; ++i)
4308 if (is_gsharedvt_type (inst->type_argv [i]))
4309 return TRUE;
4310 }
4311 return FALSE;
4312 }
4313
4314 /*
4315 * mini_get_shared_method_full:
4316 *
4317 * Return the method which is actually compiled/registered when doing generic sharing.
4318 * If ALL_VT is true, return the shared method belonging to an all-vtype instantiation.
4319 * If IS_GSHAREDVT is true, treat METHOD as a gsharedvt method even if it fails some constraints.
4320 */
4321 MonoMethod*
4322 mini_get_shared_method_full (MonoMethod *method, gboolean all_vt, gboolean is_gsharedvt)
4323 {
4324 MonoGenericContext shared_context;
4325 MonoMethod *declaring_method, *res;
4326 int i;
4327 gboolean partial = FALSE;
4328 gboolean gsharedvt = FALSE;
4329
4330 if (method->is_generic || method->klass->generic_container)
4331 declaring_method = method;
4332 else
4333 declaring_method = mono_method_get_declaring_generic_method (method);
4334
4335 if (declaring_method->is_generic)
4336 shared_context = mono_method_get_generic_container (declaring_method)->context;
4337 else
4338 shared_context = declaring_method->klass->generic_container->context;
4339
4340 /* Handle gsharedvt/partial sharing */
4341 if ((method != declaring_method && method->is_inflated && !mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE, TRUE)) ||
4342 is_gsharedvt || mini_is_gsharedvt_sharable_method (method)) {
4343 MonoGenericContext *context = mono_method_get_context (method);
4344 MonoGenericInst *inst;
4345 MonoType **type_argv;
4346
4347 gsharedvt = is_gsharedvt || mini_is_gsharedvt_sharable_method (method);
4348
4349 /*
4350 * Create the shared context by replacing the ref type arguments with
4351 * type parameters, and keeping the rest.
4352 */
4353 partial = TRUE;
4354 inst = context->class_inst;
4355 if (inst) {
4356 type_argv = g_new0 (MonoType*, inst->type_argc);
4357 for (i = 0; i < inst->type_argc; ++i) {
4358 if (!all_vt && (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR))
4359 type_argv [i] = shared_context.class_inst->type_argv [i];
4360 else if (gsharedvt)
4361 type_argv [i] = get_gsharedvt_type (shared_context.class_inst->type_argv [i]);
4362 else
4363 type_argv [i] = inst->type_argv [i];
4364 }
4365
4366 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4367 g_free (type_argv);
4368 }
4369
4370 inst = context->method_inst;
4371 if (inst) {
4372 type_argv = g_new0 (MonoType*, inst->type_argc);
4373 for (i = 0; i < inst->type_argc; ++i) {
4374 if (!all_vt && (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR))
4375 type_argv [i] = shared_context.method_inst->type_argv [i];
4376 else if (gsharedvt)
4377 type_argv [i] = get_gsharedvt_type (shared_context.method_inst->type_argv [i]);
4378 else
4379 type_argv [i] = inst->type_argv [i];
4380 }
4381
4382 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4383 g_free (type_argv);
4384 }
4385 }
4386
4387 res = mono_class_inflate_generic_method (declaring_method, &shared_context);
4388 if (!partial) {
4389 /* The result should be an inflated method whose parent is not inflated */
4390 g_assert (!res->klass->is_inflated);
4391 }
4392 return res;
4393 }
4394
4395 MonoMethod*
4396 mini_get_shared_method (MonoMethod *method)
4397 {
4398 return mini_get_shared_method_full (method, FALSE, FALSE);
4399 }
4400
4401 static void
4402 mini_init_gsctx_full (MonoGenericContext *context, MonoGenericSharingContext *gsctx, gboolean all_vt)
4403 {
4404 MonoGenericInst *inst;
4405 int i;
4406
4407 memset (gsctx, 0, sizeof (MonoGenericSharingContext));
4408
4409 if (context->class_inst) {
4410 inst = context->class_inst;
4411 gsctx->var_is_vt = g_new0 (gboolean, inst->type_argc);
4412
4413 for (i = 0; i < inst->type_argc; ++i) {
4414 MonoType *type = inst->type_argv [i];
4415
4416 if (!all_vt && (MONO_TYPE_IS_REFERENCE (type) || (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))) {
4417 } else {
4418 gsctx->var_is_vt [i] = TRUE;
4419 }
4420 }
4421 }
4422 if (context->method_inst) {
4423 inst = context->method_inst;
4424 gsctx->mvar_is_vt = g_new0 (gboolean, inst->type_argc);
4425
4426 for (i = 0; i < inst->type_argc; ++i) {
4427 MonoType *type = inst->type_argv [i];
4428
4429 if (!all_vt && (MONO_TYPE_IS_REFERENCE (type) || (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))) {
4430 } else {
4431 gsctx->mvar_is_vt [i] = TRUE;
4432 }
4433 }
4434 }
4435 }
4436
4437 void
4438 mini_init_gsctx (MonoGenericContext *context, MonoGenericSharingContext *gsctx)
4439 {
4440 mini_init_gsctx_full (context, gsctx, FALSE);
4441 }
4442
4443 #ifndef DISABLE_JIT
4444 /*
4445 * mini_method_compile:
4446 * @method: the method to compile
4447 * @opts: the optimization flags to use
4448 * @domain: the domain where the method will be compiled in
4449 * @run_cctors: whether we should run type ctors if possible
4450 * @compile_aot: whether this is an AOT compilation
4451 * @parts: debug flag
4452 *
4453 * Returns: a MonoCompile* pointer. Caller must check the exception_type
4454 * field in the returned struct to see if compilation succeded.
4455 */
4456 MonoCompile*
4457 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
4458 {
4459 MonoMethodHeader *header;
4460 MonoMethodSignature *sig;
4461 MonoError err;
4462 guint8 *ip;
4463 MonoCompile *cfg;
4464 int dfn, i, code_size_ratio;
4465 gboolean deadce_has_run = FALSE;
4466 gboolean try_generic_shared, try_llvm = FALSE;
4467 MonoMethod *method_to_compile, *method_to_register;
4468 gboolean method_is_gshared = FALSE;
4469
4470 InterlockedIncrement (&mono_jit_stats.methods_compiled);
4471 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
4472 mono_profiler_method_jit (method);
4473 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
4474 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
4475
4476 if (compile_aot)
4477 /*
4478 * We might get passed the original generic method definition or
4479 * instances with type parameters.
4480 * FIXME: Remove the method->klass->generic_class limitation.
4481 */
4482 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
4483 (opts & MONO_OPT_GSHARED) && ((method->is_generic || method->klass->generic_container) || (!method->klass->generic_class && mono_method_is_generic_sharable_impl_full (method, TRUE, FALSE, FALSE)));
4484 else
4485 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
4486 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE, TRUE);
4487
4488 if (opts & MONO_OPT_GSHARED) {
4489 if (try_generic_shared)
4490 mono_stats.generics_sharable_methods++;
4491 else if (mono_method_is_generic_impl (method))
4492 mono_stats.generics_unsharable_methods++;
4493 }
4494
4495 if (mini_is_gsharedvt_sharable_method (method)) {
4496 if (!mono_debug_count ())
4497 try_generic_shared = FALSE;
4498 if (compile_aot)
4499 try_generic_shared = FALSE;
4500 }
4501
4502 if (is_gsharedvt_method (method)) {
4503 /* We are AOTing a gshared method directly */
4504 method_is_gshared = TRUE;
4505 g_assert (compile_aot);
4506 try_generic_shared = TRUE;
4507 }
4508
4509 #ifdef ENABLE_LLVM
4510 try_llvm = mono_use_llvm;
4511 #endif
4512
4513 restart_compile:
4514 if (method_is_gshared) {
4515 method_to_compile = method;
4516 } else {
4517 if (try_generic_shared) {
4518 method_to_compile = mini_get_shared_method (method);
4519 g_assert (method_to_compile);
4520 } else {
4521 method_to_compile = method;
4522 }
4523 }
4524
4525 cfg = g_new0 (MonoCompile, 1);
4526 cfg->method = method_to_compile;
4527 cfg->header = mono_method_get_header (cfg->method);
4528 cfg->mempool = mono_mempool_new ();
4529 cfg->opt = opts;
4530 cfg->prof_options = mono_profiler_get_events ();
4531 cfg->run_cctors = run_cctors;
4532 cfg->domain = domain;
4533 cfg->verbose_level = mini_verbose;
4534 cfg->compile_aot = compile_aot;
4535 cfg->skip_visibility = method->skip_visibility;
4536 cfg->orig_method = method;
4537 cfg->gen_seq_points = debug_options.gen_seq_points;
4538 cfg->explicit_null_checks = debug_options.explicit_null_checks;
4539 cfg->soft_breakpoints = debug_options.soft_breakpoints;
4540 if (try_generic_shared)
4541 cfg->generic_sharing_context = (MonoGenericSharingContext*)&cfg->gsctx;
4542 cfg->compile_llvm = try_llvm;
4543 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
4544
4545 if (cfg->gen_seq_points)
4546 cfg->seq_points = g_ptr_array_new ();
4547
4548 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container || method_is_gshared)) {
4549 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
4550 return cfg;
4551 }
4552
4553 if (cfg->generic_sharing_context && (mini_is_gsharedvt_sharable_method (method) || method_is_gshared)) {
4554 MonoMethodInflated *inflated;
4555 MonoGenericContext *context;
4556
4557 g_assert (method->is_inflated);
4558 inflated = (MonoMethodInflated*)method;
4559 context = &inflated->context;
4560
4561 // FIXME: Free the contents of gsctx if compilation fails
4562 if (method_is_gshared) {
4563 /* We are compiling a gsharedvt method directly */
4564 g_assert (compile_aot);
4565 mini_init_gsctx_full (context, &cfg->gsctx, TRUE);
4566 } else {
4567 mini_init_gsctx (context, &cfg->gsctx);
4568 }
4569
4570 cfg->gsharedvt = TRUE;
4571 // FIXME:
4572 cfg->disable_llvm = TRUE;
4573 }
4574
4575 if (cfg->generic_sharing_context) {
4576 method_to_register = method_to_compile;
4577 } else {
4578 g_assert (method == method_to_compile);
4579 method_to_register = method;
4580 }
4581 cfg->method_to_register = method_to_register;
4582
4583 mono_error_init (&err);
4584 sig = mono_method_signature_checked (cfg->method, &err);
4585 if (!sig) {
4586 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
4587 cfg->exception_message = g_strdup (mono_error_get_message (&err));
4588 mono_error_cleanup (&err);
4589 if (MONO_METHOD_COMPILE_END_ENABLED ())
4590 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4591 return cfg;
4592 }
4593
4594 header = cfg->header;
4595 if (!header) {
4596 MonoLoaderError *error;
4597
4598 if ((error = mono_loader_get_last_error ())) {
4599 cfg->exception_type = error->exception_type;
4600 } else {
4601 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
4602 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
4603 }
4604 if (MONO_METHOD_COMPILE_END_ENABLED ())
4605 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4606 return cfg;
4607 }
4608
4609 #ifdef ENABLE_LLVM
4610 {
4611 static gboolean inited;
4612
4613 if (!inited) {
4614 inited = TRUE;
4615 }
4616
4617 /*
4618 * Check for methods which cannot be compiled by LLVM early, to avoid
4619 * the extra compilation pass.
4620 */
4621 if (COMPILE_LLVM (cfg)) {
4622 mono_llvm_check_method_supported (cfg);
4623 if (cfg->disable_llvm) {
4624 if (cfg->verbose_level >= 1) {
4625 //nm = mono_method_full_name (cfg->method, TRUE);
4626 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
4627 //g_free (nm);
4628 }
4629 mono_destroy_compile (cfg);
4630 try_llvm = FALSE;
4631 goto restart_compile;
4632 }
4633 }
4634 }
4635 #endif
4636
4637 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
4638 if (mono_debug_using_mono_debugger () || debug_options.mdb_optimizations) {
4639 cfg->disable_reuse_registers = TRUE;
4640 cfg->disable_reuse_stack_slots = TRUE;
4641 /*
4642 * This decreases the change the debugger will read registers/stack slots which are
4643 * not yet initialized.
4644 */
4645 cfg->disable_initlocals_opt = TRUE;
4646
4647 cfg->extend_live_ranges = TRUE;
4648
4649 /* Temporarily disable this when running in the debugger until we have support
4650 * for this in the debugger. */
4651 /* This is no longer needed with sdb */
4652 //cfg->disable_omit_fp = TRUE;
4653
4654 /* The debugger needs all locals to be on the stack or in a global register */
4655 cfg->disable_vreg_to_lvreg = TRUE;
4656
4657 /* Don't remove unused variables when running inside the debugger since the user
4658 * may still want to view them. */
4659 cfg->disable_deadce_vars = TRUE;
4660
4661 // cfg->opt |= MONO_OPT_SHARED;
4662 cfg->opt &= ~MONO_OPT_DEADCE;
4663 cfg->opt &= ~MONO_OPT_INLINE;
4664 cfg->opt &= ~MONO_OPT_COPYPROP;
4665 cfg->opt &= ~MONO_OPT_CONSPROP;
4666 /* This is no longer needed with sdb */
4667 //cfg->opt &= ~MONO_OPT_GSHARED;
4668
4669 /* This is needed for the soft debugger, which doesn't like code after the epilog */
4670 cfg->disable_out_of_line_bblocks = TRUE;
4671 }
4672
4673 if (mono_using_xdebug) {
4674 /*
4675 * Make each variable use its own register/stack slot and extend
4676 * their liveness to cover the whole method, making them displayable
4677 * in gdb even after they are dead.
4678 */
4679 cfg->disable_reuse_registers = TRUE;
4680 cfg->disable_reuse_stack_slots = TRUE;
4681 cfg->extend_live_ranges = TRUE;
4682 cfg->compute_precise_live_ranges = TRUE;
4683 }
4684
4685 mini_gc_init_cfg (cfg);
4686
4687 if (COMPILE_LLVM (cfg)) {
4688 cfg->opt |= MONO_OPT_ABCREM;
4689 }
4690
4691 if (getenv ("MONO_VERBOSE_METHOD")) {
4692 char *name = getenv ("MONO_VERBOSE_METHOD");
4693
4694 if ((strchr (name, '.') > name) || strchr (name, ':')) {
4695 MonoMethodDesc *desc;
4696
4697 desc = mono_method_desc_new (name, TRUE);
4698 if (mono_method_desc_full_match (desc, cfg->method)) {
4699 cfg->verbose_level = 4;
4700 }
4701 mono_method_desc_free (desc);
4702 } else {
4703 if (strcmp (cfg->method->name, getenv ("MONO_VERBOSE_METHOD")) == 0)
4704 cfg->verbose_level = 4;
4705 }
4706 }
4707
4708 ip = (guint8 *)header->code;
4709
4710 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
4711
4712 if (cfg->verbose_level > 0) {
4713 char *method_name;
4714
4715 method_name = mono_method_full_name (method, TRUE);
4716 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->generic_sharing_context && !cfg->gsharedvt) ? "gshared " : "", method_name);
4717 /*
4718 if (COMPILE_LLVM (cfg))
4719 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
4720 else if (cfg->gsharedvt)
4721 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
4722 else if (cfg->generic_sharing_context)
4723 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
4724 else
4725 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
4726 */
4727 g_free (method_name);
4728 }
4729
4730 if (cfg->opt & (MONO_OPT_ABCREM | MONO_OPT_SSAPRE))
4731 cfg->opt |= MONO_OPT_SSA;
4732
4733 /*
4734 if ((cfg->method->klass->image != mono_defaults.corlib) || (strstr (cfg->method->klass->name, "StackOverflowException") && strstr (cfg->method->name, ".ctor")) || (strstr (cfg->method->klass->name, "OutOfMemoryException") && strstr (cfg->method->name, ".ctor")))
4735 cfg->globalra = TRUE;
4736 */
4737
4738 //cfg->globalra = TRUE;
4739
4740 //if (!strcmp (cfg->method->klass->name, "Tests") && !cfg->method->wrapper_type)
4741 // cfg->globalra = TRUE;
4742
4743 {
4744 static int count = 0;
4745 count ++;
4746
4747 /*
4748 if (getenv ("COUNT2")) {
4749 cfg->globalra = TRUE;
4750 if (count == atoi (getenv ("COUNT2")))
4751 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
4752 if (count > atoi (getenv ("COUNT2")))
4753 cfg->globalra = FALSE;
4754 }
4755 */
4756 }
4757
4758 if (header->clauses)
4759 cfg->globalra = FALSE;
4760
4761 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
4762 /* The code in the prolog clobbers caller saved registers */
4763 cfg->globalra = FALSE;
4764
4765 // FIXME: Disable globalra in case of tracing/profiling
4766
4767 if (cfg->method->save_lmf)
4768 /* The LMF saving code might clobber caller saved registers */
4769 cfg->globalra = FALSE;
4770
4771 if (header->code_size > 5000)
4772 // FIXME:
4773 /* Too large bblocks could overflow the ins positions */
4774 cfg->globalra = FALSE;
4775
4776 cfg->rs = mono_regstate_new ();
4777 if (cfg->globalra)
4778 cfg->rs->next_vreg = MONO_MAX_IREGS + MONO_MAX_FREGS;
4779 cfg->next_vreg = cfg->rs->next_vreg;
4780
4781 /* FIXME: Fix SSA to handle branches inside bblocks */
4782 if (cfg->opt & MONO_OPT_SSA)
4783 cfg->enable_extended_bblocks = FALSE;
4784
4785 /*
4786 * FIXME: This confuses liveness analysis because variables which are assigned after
4787 * a branch inside a bblock become part of the kill set, even though the assignment
4788 * might not get executed. This causes the optimize_initlocals pass to delete some
4789 * assignments which are needed.
4790 * Also, the mono_if_conversion pass needs to be modified to recognize the code
4791 * created by this.
4792 */
4793 //cfg->enable_extended_bblocks = TRUE;
4794
4795 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
4796 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
4797 if (mini_get_debug_options ()->break_on_unverified)
4798 G_BREAKPOINT ();
4799 return cfg;
4800 }
4801
4802 /*
4803 * create MonoInst* which represents arguments and local variables
4804 */
4805 mono_compile_create_vars (cfg);
4806
4807 /* SSAPRE is not supported on linear IR */
4808 cfg->opt &= ~MONO_OPT_SSAPRE;
4809
4810 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, NULL, 0, FALSE);
4811
4812 if (i < 0) {
4813 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
4814 if (compile_aot) {
4815 if (MONO_METHOD_COMPILE_END_ENABLED ())
4816 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4817 return cfg;
4818 }
4819 mono_destroy_compile (cfg);
4820 try_generic_shared = FALSE;
4821 goto restart_compile;
4822 }
4823 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
4824
4825 if (MONO_METHOD_COMPILE_END_ENABLED ())
4826 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4827 /* cfg contains the details of the failure, so let the caller cleanup */
4828 return cfg;
4829 }
4830
4831 cfg->stat_basic_blocks += cfg->num_bblocks;
4832
4833 if (COMPILE_LLVM (cfg)) {
4834 MonoInst *ins;
4835
4836 /* The IR has to be in SSA form for LLVM */
4837 cfg->opt |= MONO_OPT_SSA;
4838
4839 // FIXME:
4840 if (cfg->ret) {
4841 // Allow SSA on the result value
4842 cfg->ret->flags &= ~MONO_INST_VOLATILE;
4843
4844 // Add an explicit return instruction referencing the return value
4845 MONO_INST_NEW (cfg, ins, OP_SETRET);
4846 ins->sreg1 = cfg->ret->dreg;
4847
4848 MONO_ADD_INS (cfg->bb_exit, ins);
4849 }
4850
4851 cfg->opt &= ~MONO_OPT_LINEARS;
4852
4853 /* FIXME: */
4854 cfg->opt &= ~MONO_OPT_BRANCH;
4855 }
4856
4857 /* todo: remove code when we have verified that the liveness for try/catch blocks
4858 * works perfectly
4859 */
4860 /*
4861 * Currently, this can't be commented out since exception blocks are not
4862 * processed during liveness analysis.
4863 * It is also needed, because otherwise the local optimization passes would
4864 * delete assignments in cases like this:
4865 * r1 <- 1
4866 * <something which throws>
4867 * r1 <- 2
4868 * This also allows SSA to be run on methods containing exception clauses, since
4869 * SSA will ignore variables marked VOLATILE.
4870 */
4871 mono_liveness_handle_exception_clauses (cfg);
4872
4873 mono_handle_out_of_line_bblock (cfg);
4874
4875 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
4876
4877 if (!COMPILE_LLVM (cfg))
4878 mono_decompose_long_opts (cfg);
4879
4880 /* Should be done before branch opts */
4881 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
4882 mono_local_cprop (cfg);
4883
4884 if (cfg->opt & MONO_OPT_BRANCH)
4885 mono_optimize_branches (cfg);
4886
4887 /* This must be done _before_ global reg alloc and _after_ decompose */
4888 mono_handle_global_vregs (cfg);
4889 if (cfg->opt & MONO_OPT_DEADCE)
4890 mono_local_deadce (cfg);
4891 /* Disable this for LLVM to make the IR easier to handle */
4892 if (!COMPILE_LLVM (cfg))
4893 mono_if_conversion (cfg);
4894
4895 if ((cfg->opt & MONO_OPT_SSAPRE) || cfg->globalra)
4896 mono_remove_critical_edges (cfg);
4897
4898 /* Depth-first ordering on basic blocks */
4899 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4900
4901 cfg->max_block_num = cfg->num_bblocks;
4902
4903 dfn = 0;
4904 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4905 if (cfg->num_bblocks != dfn + 1) {
4906 MonoBasicBlock *bb;
4907
4908 cfg->num_bblocks = dfn + 1;
4909
4910 /* remove unreachable code, because the code in them may be
4911 * inconsistent (access to dead variables for example) */
4912 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4913 bb->flags &= ~BB_VISITED;
4914 compute_reachable (cfg->bb_entry);
4915 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4916 if (bb->flags & BB_EXCEPTION_HANDLER)
4917 compute_reachable (bb);
4918 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4919 if (!(bb->flags & BB_VISITED)) {
4920 if (cfg->verbose_level > 1)
4921 g_print ("found unreachable code in BB%d\n", bb->block_num);
4922 bb->code = bb->last_ins = NULL;
4923 while (bb->out_count)
4924 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
4925 }
4926 }
4927 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4928 bb->flags &= ~BB_VISITED;
4929 }
4930
4931 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
4932 /*
4933 * we disable some optimizations if there are too many variables
4934 * because JIT time may become too expensive. The actual number needs
4935 * to be tweaked and eventually the non-linear algorithms should be fixed.
4936 */
4937 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
4938 cfg->disable_ssa = TRUE;
4939 }
4940
4941 if (cfg->opt & MONO_OPT_LOOP) {
4942 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
4943 mono_compute_natural_loops (cfg);
4944 }
4945
4946 /* after method_to_ir */
4947 if (parts == 1) {
4948 if (MONO_METHOD_COMPILE_END_ENABLED ())
4949 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4950 return cfg;
4951 }
4952
4953 /*
4954 if (header->num_clauses)
4955 cfg->disable_ssa = TRUE;
4956 */
4957
4958 //#define DEBUGSSA "logic_run"
4959 #define DEBUGSSA_CLASS "Tests"
4960 #ifdef DEBUGSSA
4961
4962 if (!cfg->disable_ssa) {
4963 mono_local_cprop (cfg);
4964
4965 #ifndef DISABLE_SSA
4966 mono_ssa_compute (cfg);
4967 #endif
4968 }
4969 #else
4970 if (cfg->opt & MONO_OPT_SSA) {
4971 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
4972 #ifndef DISABLE_SSA
4973 mono_ssa_compute (cfg);
4974 #endif
4975
4976 if (cfg->verbose_level >= 2) {
4977 print_dfn (cfg);
4978 }
4979 }
4980 }
4981 #endif
4982
4983 /* after SSA translation */
4984 if (parts == 2) {
4985 if (MONO_METHOD_COMPILE_END_ENABLED ())
4986 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4987 return cfg;
4988 }
4989
4990 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
4991 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4992 #ifndef DISABLE_SSA
4993 mono_ssa_cprop (cfg);
4994 #endif
4995 }
4996 }
4997
4998 #ifndef DISABLE_SSA
4999 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
5000 //mono_ssa_strength_reduction (cfg);
5001
5002 if (cfg->opt & MONO_OPT_SSAPRE) {
5003 mono_perform_ssapre (cfg);
5004 //mono_local_cprop (cfg);
5005 }
5006
5007 if (cfg->opt & MONO_OPT_DEADCE) {
5008 mono_ssa_deadce (cfg);
5009 deadce_has_run = TRUE;
5010 }
5011
5012 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
5013 mono_perform_abc_removal (cfg);
5014
5015 mono_ssa_remove (cfg);
5016 mono_local_cprop (cfg);
5017 mono_handle_global_vregs (cfg);
5018 if (cfg->opt & MONO_OPT_DEADCE)
5019 mono_local_deadce (cfg);
5020
5021 if (cfg->opt & MONO_OPT_BRANCH) {
5022 MonoBasicBlock *bb;
5023
5024 mono_optimize_branches (cfg);
5025
5026 /* Have to recompute cfg->bblocks and bb->dfn */
5027 if (cfg->globalra) {
5028 mono_remove_critical_edges (cfg);
5029
5030 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
5031 bb->dfn = 0;
5032
5033 /* Depth-first ordering on basic blocks */
5034 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
5035
5036 dfn = 0;
5037 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
5038 cfg->num_bblocks = dfn + 1;
5039 }
5040 }
5041 }
5042 #endif
5043
5044 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
5045 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
5046 if (cfg->opt & MONO_OPT_ABCREM)
5047 mono_perform_abc_removal (cfg);
5048 }
5049
5050 /* after SSA removal */
5051 if (parts == 3) {
5052 if (MONO_METHOD_COMPILE_END_ENABLED ())
5053 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
5054 return cfg;
5055 }
5056
5057 #ifdef MONO_ARCH_SOFT_FLOAT
5058 if (!COMPILE_LLVM (cfg))
5059 mono_decompose_soft_float (cfg);
5060 #endif
5061 if (!COMPILE_LLVM (cfg))
5062 mono_decompose_vtype_opts (cfg);
5063 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
5064 mono_decompose_array_access_opts (cfg);
5065
5066 if (cfg->got_var) {
5067 #ifndef MONO_ARCH_GOT_REG
5068 GList *regs;
5069 #endif
5070 int got_reg;
5071
5072 g_assert (cfg->got_var_allocated);
5073
5074 /*
5075 * Allways allocate the GOT var to a register, because keeping it
5076 * in memory will increase the number of live temporaries in some
5077 * code created by inssel.brg, leading to the well known spills+
5078 * branches problem. Testcase: mcs crash in
5079 * System.MonoCustomAttrs:GetCustomAttributes.
5080 */
5081 #ifdef MONO_ARCH_GOT_REG
5082 got_reg = MONO_ARCH_GOT_REG;
5083 #else
5084 regs = mono_arch_get_global_int_regs (cfg);
5085 g_assert (regs);
5086 got_reg = GPOINTER_TO_INT (regs->data);
5087 g_list_free (regs);
5088 #endif
5089 cfg->got_var->opcode = OP_REGVAR;
5090 cfg->got_var->dreg = got_reg;
5091 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
5092 }
5093
5094 /*
5095 * Have to call this again to process variables added since the first call.
5096 */
5097 mono_liveness_handle_exception_clauses (cfg);
5098
5099 if (cfg->globalra) {
5100 MonoBasicBlock *bb;
5101
5102 /* Have to do this before regalloc since it can create vregs */
5103 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
5104 mono_arch_lowering_pass (cfg, bb);
5105
5106 mono_global_regalloc (cfg);
5107 }
5108
5109 if ((cfg->opt & MONO_OPT_LINEARS) && !cfg->globalra) {
5110 GList *vars, *regs, *l;
5111
5112 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
5113 cfg->comp_done &= ~MONO_COMP_LIVENESS;
5114 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
5115 mono_analyze_liveness (cfg);
5116
5117 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
5118 regs = mono_arch_get_global_int_regs (cfg);
5119 /* Remove the reg reserved for holding the GOT address */
5120 if (cfg->got_var) {
5121 for (l = regs; l; l = l->next) {
5122 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
5123 regs = g_list_delete_link (regs, l);
5124 break;
5125 }
5126 }
5127 }
5128 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
5129 }
5130 }
5131
5132 //mono_print_code (cfg, "");
5133
5134 //print_dfn (cfg);
5135
5136 /* variables are allocated after decompose, since decompose could create temps */
5137 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
5138 mono_arch_allocate_vars (cfg);
5139 if (cfg->exception_type)
5140 return cfg;
5141 }
5142
5143 {
5144 MonoBasicBlock *bb;
5145 gboolean need_local_opts;
5146
5147 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
5148 mono_spill_global_vars (cfg, &need_local_opts);
5149
5150 if (need_local_opts || cfg->compile_aot) {
5151 /* To optimize code created by spill_global_vars */
5152 mono_local_cprop (cfg);
5153 if (cfg->opt & MONO_OPT_DEADCE)
5154 mono_local_deadce (cfg);
5155 }
5156 }
5157
5158 /* Add branches between non-consecutive bblocks */
5159 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5160 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
5161 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
5162 /* we are careful when inverting, since bugs like #59580
5163 * could show up when dealing with NaNs.
5164 */
5165 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
5166 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
5167 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
5168 bb->last_ins->inst_false_bb = tmp;
5169
5170 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
5171 } else {
5172 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
5173 inst->opcode = OP_BR;
5174 inst->inst_target_bb = bb->last_ins->inst_false_bb;
5175 mono_bblock_add_inst (bb, inst);
5176 }
5177 }
5178 }
5179
5180 if (cfg->verbose_level >= 4 && !cfg->globalra) {
5181 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5182 MonoInst *tree = bb->code;
5183 g_print ("DUMP BLOCK %d:\n", bb->block_num);
5184 if (!tree)
5185 continue;
5186 for (; tree; tree = tree->next) {
5187 mono_print_ins_index (-1, tree);
5188 }
5189 }
5190 }
5191
5192 /* FIXME: */
5193 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5194 bb->max_vreg = cfg->next_vreg;
5195 }
5196 }
5197
5198 if (COMPILE_LLVM (cfg)) {
5199 #ifdef ENABLE_LLVM
5200 char *nm;
5201
5202 /* The IR has to be in SSA form for LLVM */
5203 if (!(cfg->comp_done & MONO_COMP_SSA)) {
5204 cfg->exception_message = g_strdup ("SSA disabled.");
5205 cfg->disable_llvm = TRUE;
5206 }
5207
5208 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
5209 mono_decompose_array_access_opts (cfg);
5210
5211 if (!cfg->disable_llvm)
5212 mono_llvm_emit_method (cfg);
5213 if (cfg->disable_llvm) {
5214 if (cfg->verbose_level >= 1) {
5215 //nm = mono_method_full_name (cfg->method, TRUE);
5216 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
5217 //g_free (nm);
5218 }
5219 mono_destroy_compile (cfg);
5220 try_llvm = FALSE;
5221 goto restart_compile;
5222 }
5223
5224 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
5225 nm = mono_method_full_name (cfg->method, TRUE);
5226 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
5227 nm,
5228 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
5229 g_free (nm);
5230 }
5231 #endif
5232 } else {
5233 mono_codegen (cfg);
5234 }
5235
5236 if (COMPILE_LLVM (cfg))
5237 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
5238 else
5239 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
5240
5241 cfg->jit_info = create_jit_info (cfg, method_to_compile);
5242
5243 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
5244 if (cfg->extend_live_ranges) {
5245 /* Extend live ranges to cover the whole method */
5246 for (i = 0; i < cfg->num_varinfo; ++i)
5247 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
5248 }
5249 #endif
5250
5251 if (!cfg->compile_aot)
5252 mono_save_xdebug_info (cfg);
5253
5254 mini_gc_create_gc_map (cfg);
5255
5256 mono_save_seq_point_info (cfg);
5257
5258 if (cfg->verbose_level >= 2) {
5259 char *id = mono_method_full_name (cfg->method, FALSE);
5260 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
5261 g_free (id);
5262 }
5263
5264 if (!cfg->compile_aot) {
5265 mono_domain_lock (cfg->domain);
5266 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
5267
5268 if (cfg->method->dynamic)
5269 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
5270 mono_domain_unlock (cfg->domain);
5271 }
5272
5273 #if 0
5274 if (cfg->gsharedvt)
5275 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
5276 #endif
5277
5278 /* collect statistics */
5279 #ifndef DISABLE_PERFCOUNTERS
5280 mono_perfcounters->jit_methods++;
5281 mono_perfcounters->jit_bytes += header->code_size;
5282 #endif
5283 mono_jit_stats.allocated_code_size += cfg->code_len;
5284 code_size_ratio = cfg->code_len;
5285 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
5286 mono_jit_stats.biggest_method_size = code_size_ratio;
5287 g_free (mono_jit_stats.biggest_method);
5288 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
5289 }
5290 code_size_ratio = (code_size_ratio * 100) / header->code_size;
5291 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
5292 mono_jit_stats.max_code_size_ratio = code_size_ratio;
5293 g_free (mono_jit_stats.max_ratio_method);
5294 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
5295 }
5296 mono_jit_stats.native_code_size += cfg->code_len;
5297
5298 if (MONO_METHOD_COMPILE_END_ENABLED ())
5299 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
5300
5301 return cfg;
5302 }
5303
5304 #else
5305
5306 MonoCompile*
5307 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
5308 {
5309 g_assert_not_reached ();
5310 return NULL;
5311 }
5312
5313 #endif /* DISABLE_JIT */
5314
5315 MonoJitInfo*
5316 mono_domain_lookup_shared_generic (MonoDomain *domain, MonoMethod *method)
5317 {
5318 static gboolean inited = FALSE;
5319 static int lookups = 0;
5320 static int failed_lookups = 0;
5321 MonoJitInfo *ji;
5322
5323 ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, mini_get_shared_method (method));
5324 if (ji && !ji->has_generic_jit_info)
5325 ji = NULL;
5326
5327 if (!inited) {
5328 mono_counters_register ("Shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &lookups);
5329 mono_counters_register ("Failed shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &failed_lookups);
5330 inited = TRUE;
5331 }
5332
5333 ++lookups;
5334 if (!ji)
5335 ++failed_lookups;
5336
5337 return ji;
5338 }
5339
5340 /*
5341 * LOCKING: Assumes domain->jit_code_hash_lock is held.
5342 */
5343 static MonoJitInfo*
5344 lookup_method_inner (MonoDomain *domain, MonoMethod *method)
5345 {
5346 MonoJitInfo *ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, method);
5347
5348 if (ji)
5349 return ji;
5350
5351 if (!mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE, TRUE))
5352 return NULL;
5353 return mono_domain_lookup_shared_generic (domain, method);
5354 }
5355
5356 static MonoJitInfo*
5357 lookup_method (MonoDomain *domain, MonoMethod *method)
5358 {
5359 MonoJitInfo *info;
5360
5361 mono_loader_lock (); /*FIXME lookup_method_inner acquired it*/
5362 mono_domain_jit_code_hash_lock (domain);
5363 info = lookup_method_inner (domain, method);
5364 mono_domain_jit_code_hash_unlock (domain);
5365 mono_loader_unlock ();
5366
5367 return info;
5368 }
5369
5370 #if ENABLE_JIT_MAP
5371 static FILE* perf_map_file = NULL;
5372
5373 void
5374 mono_enable_jit_map (void)
5375 {
5376 if (!perf_map_file) {
5377 char name [64];
5378 g_snprintf (name, sizeof (name), "/tmp/perf-%d.map", getpid ());
5379 unlink (name);
5380 perf_map_file = fopen (name, "w");
5381 }
5382 }
5383
5384 void
5385 mono_emit_jit_tramp (void *start, int size, const char *desc)
5386 {
5387 if (perf_map_file)
5388 fprintf (perf_map_file, "%llx %x %s\n", (long long unsigned int)(gsize)start, size, desc);
5389 }
5390
5391 void
5392 mono_emit_jit_map (MonoJitInfo *jinfo)
5393 {
5394 if (perf_map_file) {
5395 char *name = mono_method_full_name (jinfo->method, TRUE);
5396 mono_emit_jit_tramp (jinfo->code_start, jinfo->code_size, name);
5397 g_free (name);
5398 }
5399 }
5400
5401 gboolean
5402 mono_jit_map_is_enabled (void)
5403 {
5404 return perf_map_file != NULL;
5405 }
5406
5407 #endif
5408
5409 static gpointer
5410 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoException **jit_ex)
5411 {
5412 MonoCompile *cfg;
5413 gpointer code = NULL;
5414 MonoJitInfo *jinfo, *info;
5415 MonoVTable *vtable;
5416 MonoException *ex = NULL;
5417 guint32 prof_options;
5418 GTimer *jit_timer;
5419 MonoMethod *prof_method;
5420
5421 #ifdef MONO_USE_AOT_COMPILER
5422 if (opt & MONO_OPT_AOT) {
5423 MonoDomain *domain = mono_domain_get ();
5424
5425 mono_class_init (method->klass);
5426
5427 if ((code = mono_aot_get_method (domain, method))) {
5428 vtable = mono_class_vtable (domain, method->klass);
5429 g_assert (vtable);
5430 mono_runtime_class_init (vtable);
5431
5432 return code;
5433 }
5434 }
5435 #endif
5436
5437 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
5438 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
5439 MonoMethod *nm;
5440 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
5441
5442 if (!piinfo->addr) {
5443 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
5444 piinfo->addr = mono_lookup_internal_call (method);
5445 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
5446 #ifdef HOST_WIN32
5447 g_warning ("Method '%s' in assembly '%s' contains native code that cannot be executed by Mono in modules loaded from byte arrays. The assembly was probably created using C++/CLI.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
5448 #else
5449 g_warning ("Method '%s' in assembly '%s' contains native code that cannot be executed by Mono on this platform. The assembly was probably created using C++/CLI.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
5450 #endif
5451 else
5452 mono_lookup_pinvoke_call (method, NULL, NULL);
5453 }
5454 nm = mono_marshal_get_native_wrapper (method, check_for_pending_exc, FALSE);
5455 code = mono_get_addr_from_ftnptr (mono_compile_method (nm));
5456 jinfo = mono_jit_info_table_find (target_domain, code);
5457 if (!jinfo)
5458 jinfo = mono_jit_info_table_find (mono_domain_get (), code);
5459 if (jinfo)
5460 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
5461 return code;
5462
5463 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
5464 //mono_debug_add_wrapper (method, nm);
5465 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
5466 const char *name = method->name;
5467 char *full_name, *msg;
5468 MonoMethod *nm;
5469
5470 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
5471 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
5472 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
5473 g_assert (mi);
5474 /*
5475 * We need to make sure this wrapper
5476 * is compiled because it might end up
5477 * in an (M)RGCTX if generic sharing
5478 * is enabled, and would be called
5479 * indirectly. If it were a
5480 * trampoline we'd try to patch that
5481 * indirect call, which is not
5482 * possible.
5483 */
5484 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
5485 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
5486 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
5487 return mono_create_delegate_trampoline (target_domain, method->klass);
5488 #else
5489 nm = mono_marshal_get_delegate_invoke (method, NULL);
5490 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
5491 #endif
5492 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
5493 nm = mono_marshal_get_delegate_begin_invoke (method);
5494 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
5495 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
5496 nm = mono_marshal_get_delegate_end_invoke (method);
5497 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
5498 }
5499 }
5500
5501 full_name = mono_method_full_name (method, TRUE);
5502 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
5503 *jit_ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
5504 g_free (full_name);
5505 g_free (msg);
5506 return NULL;
5507 }
5508
5509 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
5510 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
5511
5512 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
5513 static MonoTrampInfo *tinfo;
5514 MonoJitInfo *jinfo;
5515
5516 if (tinfo)
5517 return tinfo->code;
5518
5519 /*
5520 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
5521 * works.
5522 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
5523 */
5524 if (mono_aot_only) {
5525 // FIXME: No EH
5526 return mono_aot_get_trampoline ("gsharedvt_trampoline");
5527 } else {
5528 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
5529 jinfo = create_jit_info_for_trampoline (method, tinfo);
5530 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
5531 return tinfo->code;
5532 }
5533 }
5534 }
5535
5536 if (mono_aot_only) {
5537 char *fullname = mono_method_full_name (method, TRUE);
5538 char *msg = g_strdup_printf ("Attempting to JIT compile method '%s' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.\n", fullname);
5539
5540 *jit_ex = mono_get_exception_execution_engine (msg);
5541 g_free (fullname);
5542 g_free (msg);
5543
5544 return NULL;
5545 }
5546
5547 jit_timer = g_timer_new ();
5548
5549 cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
5550 prof_method = cfg->method;
5551
5552 g_timer_stop (jit_timer);
5553 mono_jit_stats.jit_time += g_timer_elapsed (jit_timer, NULL);
5554 g_timer_destroy (jit_timer);
5555
5556 switch (cfg->exception_type) {
5557 case MONO_EXCEPTION_NONE:
5558 break;
5559 case MONO_EXCEPTION_TYPE_LOAD:
5560 case MONO_EXCEPTION_MISSING_FIELD:
5561 case MONO_EXCEPTION_MISSING_METHOD:
5562 case MONO_EXCEPTION_FILE_NOT_FOUND:
5563 case MONO_EXCEPTION_BAD_IMAGE: {
5564 /* Throw a type load exception if needed */
5565 MonoLoaderError *error = mono_loader_get_last_error ();
5566
5567 if (error) {
5568 ex = mono_loader_error_prepare_exception (error);
5569 } else {
5570 if (cfg->exception_ptr) {
5571 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
5572 } else {
5573 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
5574 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
5575 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
5576 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
5577 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
5578 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
5579 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
5580 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FileNotFoundException", cfg->exception_message);
5581 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
5582 ex = mono_get_exception_bad_image_format (cfg->exception_message);
5583 else
5584 g_assert_not_reached ();
5585 }
5586 }
5587 break;
5588 }
5589 case MONO_EXCEPTION_INVALID_PROGRAM:
5590 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
5591 break;
5592 case MONO_EXCEPTION_UNVERIFIABLE_IL:
5593 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
5594 break;
5595 case MONO_EXCEPTION_METHOD_ACCESS:
5596 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
5597 break;
5598 case MONO_EXCEPTION_FIELD_ACCESS:
5599 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
5600 break;
5601 /* this can only be set if the security manager is active */
5602 case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
5603 MonoSecurityManager* secman = mono_security_manager_get_methods ();
5604 MonoObject *exc = NULL;
5605 gpointer args [2];
5606
5607 args [0] = &cfg->exception_data;
5608 args [1] = &method;
5609 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
5610
5611 ex = (MonoException*)exc;
5612 break;
5613 }
5614 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
5615 MonoException *exp = cfg->exception_ptr;
5616 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
5617
5618 ex = exp;
5619 break;
5620 }
5621 case MONO_EXCEPTION_OUT_OF_MEMORY:
5622 ex = mono_domain_get ()->out_of_memory_ex;
5623 break;
5624 default:
5625 g_assert_not_reached ();
5626 }
5627
5628 if (ex) {
5629 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
5630 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
5631
5632 mono_destroy_compile (cfg);
5633 *jit_ex = ex;
5634
5635 return NULL;
5636 }
5637
5638 mono_loader_lock (); /*FIXME lookup_method_inner requires the loader lock*/
5639 mono_domain_lock (target_domain);
5640
5641 /* Check if some other thread already did the job. In this case, we can
5642 discard the code this thread generated. */
5643
5644 mono_domain_jit_code_hash_lock (target_domain);
5645
5646 info = lookup_method_inner (target_domain, method);
5647 if (info) {
5648 /* We can't use a domain specific method in another domain */
5649 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
5650 code = info->code_start;
5651 // printf("Discarding code for method %s\n", method->name);
5652 }
5653 }
5654
5655 if (code == NULL) {
5656 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->method, cfg->jit_info);
5657 mono_domain_jit_code_hash_unlock (target_domain);
5658 code = cfg->native_code;
5659
5660 if (cfg->generic_sharing_context && mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE, TRUE))
5661 mono_stats.generics_shared_methods++;
5662 if (cfg->gsharedvt)
5663 mono_stats.gsharedvt_methods++;
5664 } else {
5665 mono_domain_jit_code_hash_unlock (target_domain);
5666 }
5667
5668 jinfo = cfg->jit_info;
5669
5670 prof_options = cfg->prof_options;
5671
5672 /*
5673 * Update global stats while holding a lock, instead of doing many
5674 * InterlockedIncrement operations during JITting.
5675 */
5676 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
5677 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
5678 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
5679 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
5680 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
5681 mono_jit_stats.regvars += cfg->stat_n_regvars;
5682 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
5683 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
5684 mono_jit_stats.cas_demand_generation += cfg->stat_cas_demand_generation;
5685 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
5686
5687 mono_destroy_compile (cfg);
5688
5689 #ifndef DISABLE_JIT
5690 if (domain_jit_info (target_domain)->jump_target_hash) {
5691 MonoJumpInfo patch_info;
5692 MonoJumpList *jlist;
5693 GSList *tmp;
5694 jlist = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
5695 if (jlist) {
5696 patch_info.next = NULL;
5697 patch_info.ip.i = 0;
5698 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
5699 patch_info.data.method = method;
5700 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
5701
5702 for (tmp = jlist->list; tmp; tmp = tmp->next)
5703 mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, NULL, TRUE);
5704 }
5705 }
5706
5707 mono_emit_jit_map (jinfo);
5708 #endif
5709 mono_domain_unlock (target_domain);
5710 mono_loader_unlock ();
5711
5712 vtable = mono_class_vtable (target_domain, method->klass);
5713 if (!vtable) {
5714 ex = mono_class_get_exception_for_failure (method->klass);
5715 g_assert (ex);
5716 *jit_ex = ex;
5717 return NULL;
5718 }
5719
5720 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
5721 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
5722 if (mono_marshal_method_from_wrapper (method)) {
5723 /* Native func wrappers have no method */
5724 /* The profiler doesn't know about wrappers, so pass the original icall method */
5725 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
5726 }
5727 }
5728 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
5729 if (prof_method != method) {
5730 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
5731 }
5732 }
5733
5734 ex = mono_runtime_class_init_full (vtable, FALSE);
5735 if (ex) {
5736 *jit_ex = ex;
5737 return NULL;
5738 }
5739 return code;
5740 }
5741
5742 static gpointer
5743 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex)
5744 {
5745 MonoDomain *target_domain, *domain = mono_domain_get ();
5746 MonoJitInfo *info;
5747 gpointer code, p;
5748 MonoJitICallInfo *callinfo = NULL;
5749
5750 /*
5751 * ICALL wrappers are handled specially, since there is only one copy of them
5752 * shared by all appdomains.
5753 */
5754 if ((method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) && (strstr (method->name, "__icall_wrapper_") == method->name)) {
5755 const char *icall_name;
5756
5757 icall_name = method->name + strlen ("__icall_wrapper_");
5758 g_assert (icall_name);
5759 callinfo = mono_find_jit_icall_by_name (icall_name);
5760 g_assert (callinfo);
5761
5762 /* Must be domain neutral since there is only one copy */
5763 opt |= MONO_OPT_SHARED;
5764 }
5765
5766 if (method->dynamic)
5767 opt &= ~MONO_OPT_SHARED;
5768
5769 /* These methods can become invalid when a domain is unloaded */
5770 if (method->klass->image != mono_get_corlib () || method->is_inflated)
5771 opt &= ~MONO_OPT_SHARED;
5772
5773 if (opt & MONO_OPT_SHARED)
5774 target_domain = mono_get_root_domain ();
5775 else
5776 target_domain = domain;
5777
5778 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
5779 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
5780
5781 g_assert (info);
5782 if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
5783 method = info->d.synchronized_inner.method;
5784 }
5785
5786 info = lookup_method (target_domain, method);
5787 if (info) {
5788 /* We can't use a domain specific method in another domain */
5789 if (! ((domain != target_domain) && !info->domain_neutral)) {
5790 MonoVTable *vtable;
5791 MonoException *tmpEx;
5792
5793 mono_jit_stats.methods_lookups++;
5794 vtable = mono_class_vtable (domain, method->klass);
5795 g_assert (vtable);
5796 tmpEx = mono_runtime_class_init_full (vtable, ex == NULL);
5797 if (tmpEx) {
5798 *ex = tmpEx;
5799 return NULL;
5800 }
5801 return mono_create_ftnptr (target_domain, info->code_start);
5802 }
5803 }
5804
5805 code = mono_jit_compile_method_inner (method, target_domain, opt, ex);
5806 if (!code)
5807 return NULL;
5808
5809 p = mono_create_ftnptr (target_domain, code);
5810
5811 if (callinfo) {
5812 /*mono_register_jit_icall_wrapper takes the loader lock, so we take it on the outside. */
5813 mono_loader_lock ();
5814 mono_jit_lock ();
5815 if (!callinfo->wrapper) {
5816 callinfo->wrapper = p;
5817 mono_register_jit_icall_wrapper (callinfo, p);
5818 mono_debug_add_icall_wrapper (method, callinfo);
5819 }
5820 mono_jit_unlock ();
5821 mono_loader_unlock ();
5822 }
5823
5824 return p;
5825 }
5826
5827 gpointer
5828 mono_jit_compile_method (MonoMethod *method)
5829 {
5830 MonoException *ex = NULL;
5831 gpointer code;
5832
5833 code = mono_jit_compile_method_with_opt (method, default_opt, &ex);
5834 if (!code) {
5835 g_assert (ex);
5836 mono_raise_exception (ex);
5837 }
5838
5839 return code;
5840 }
5841
5842 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
5843 static void
5844 invalidated_delegate_trampoline (char *desc)
5845 {
5846 g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
5847 "See http://www.mono-project.com/Diagnostic:Delegate for an explanation and ways to fix this.",
5848 desc);
5849 }
5850 #endif
5851
5852 /*
5853 * mono_jit_free_method:
5854 *
5855 * Free all memory allocated by the JIT for METHOD.
5856 */
5857 static void
5858 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
5859 {
5860 MonoJitDynamicMethodInfo *ji;
5861 gboolean destroy = TRUE;
5862 GHashTableIter iter;
5863 MonoJumpList *jlist;
5864
5865 g_assert (method->dynamic);
5866
5867 mono_domain_lock (domain);
5868 ji = mono_dynamic_code_hash_lookup (domain, method);
5869 mono_domain_unlock (domain);
5870
5871 if (!ji)
5872 return;
5873
5874 mono_debug_remove_method (method, domain);
5875
5876 mono_domain_lock (domain);
5877 g_hash_table_remove (domain_jit_info (domain)->dynamic_code_hash, method);
5878 mono_internal_hash_table_remove (&domain->jit_code_hash, method);
5879 g_hash_table_remove (domain_jit_info (domain)->jump_trampoline_hash, method);
5880 g_hash_table_remove (domain_jit_info (domain)->runtime_invoke_hash, method);
5881
5882 /* Remove jump targets in this method */
5883 g_hash_table_iter_init (&iter, domain_jit_info (domain)->jump_target_hash);
5884 while (g_hash_table_iter_next (&iter, NULL, (void**)&jlist)) {
5885 GSList *tmp, *remove;
5886
5887 remove = NULL;
5888 for (tmp = jlist->list; tmp; tmp = tmp->next) {
5889 guint8 *ip = tmp->data;
5890
5891 if (ip >= (guint8*)ji->ji->code_start && ip < (guint8*)ji->ji->code_start + ji->ji->code_size)
5892 remove = g_slist_prepend (remove, tmp);
5893 }
5894 for (tmp = remove; tmp; tmp = tmp->next) {
5895 jlist->list = g_slist_delete_link (jlist->list, tmp->data);
5896 }
5897 g_slist_free (remove);
5898 }
5899
5900 mono_domain_unlock (domain);
5901
5902 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
5903 if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
5904 /*
5905 * Instead of freeing the code, change it to call an error routine
5906 * so people can fix their code.
5907 */
5908 char *type = mono_type_full_name (&method->klass->byval_arg);
5909 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
5910
5911 g_free (type);
5912 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
5913 destroy = FALSE;
5914 }
5915 #endif
5916
5917 /*
5918 * This needs to be done before freeing code_mp, since the code address is the
5919 * key in the table, so if we free the code_mp first, another thread can grab the
5920 * same code address and replace our entry in the table.
5921 */
5922 mono_jit_info_table_remove (domain, ji->ji);
5923
5924 if (destroy)
5925 mono_code_manager_destroy (ji->code_mp);
5926 g_free (ji);
5927 }
5928
5929 gpointer
5930 mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji)
5931 {
5932 MonoDomain *target_domain;
5933 MonoJitInfo *info;
5934
5935 if (default_opt & MONO_OPT_SHARED)
5936 target_domain = mono_get_root_domain ();
5937 else
5938 target_domain = domain;
5939
5940 info = lookup_method (target_domain, method);
5941 if (info) {
5942 /* We can't use a domain specific method in another domain */
5943 if (! ((domain != target_domain) && !info->domain_neutral)) {
5944 mono_jit_stats.methods_lookups++;
5945 if (ji)
5946 *ji = info;
5947 return info->code_start;
5948 }
5949 }
5950
5951 if (ji)
5952 *ji = NULL;
5953 return NULL;
5954 }
5955
5956 gpointer
5957 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
5958 {
5959 return mono_jit_find_compiled_method_with_jit_info (domain, method, NULL);
5960 }
5961
5962 typedef struct {
5963 MonoMethod *method;
5964 gpointer compiled_method;
5965 gpointer runtime_invoke;
5966 MonoVTable *vtable;
5967 MonoDynCallInfo *dyn_call_info;
5968 MonoClass *ret_box_class;
5969 } RuntimeInvokeInfo;
5970
5971 /**
5972 * mono_jit_runtime_invoke:
5973 * @method: the method to invoke
5974 * @obj: this pointer
5975 * @params: array of parameter values.
5976 * @exc: used to catch exceptions objects
5977 */
5978 static MonoObject*
5979 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
5980 {
5981 MonoMethod *invoke;
5982 MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
5983 MonoDomain *domain = mono_domain_get ();
5984 MonoJitDomainInfo *domain_info;
5985 RuntimeInvokeInfo *info, *info2;
5986
5987 if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
5988 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
5989 return NULL;
5990 }
5991
5992 domain_info = domain_jit_info (domain);
5993
5994 mono_domain_lock (domain);
5995 info = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5996 mono_domain_unlock (domain);
5997
5998 if (!info) {
5999 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
6000 /*
6001 * This might be redundant since mono_class_vtable () already does this,
6002 * but keep it just in case for moonlight.
6003 */
6004 mono_class_setup_vtable (method->klass);
6005 if (method->klass->exception_type != MONO_EXCEPTION_NONE) {
6006 if (exc)
6007 *exc = (MonoObject*)mono_class_get_exception_for_failure (method->klass);
6008 else
6009 mono_raise_exception (mono_class_get_exception_for_failure (method->klass));
6010 return NULL;
6011 }
6012 }
6013
6014 info = g_new0 (RuntimeInvokeInfo, 1);
6015
6016 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
6017 info->vtable = mono_class_vtable_full (domain, method->klass, TRUE);
6018 g_assert (info->vtable);
6019
6020 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
6021 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
6022 /*
6023 * Array Get/Set/Address methods. The JIT implements them using inline code
6024 * inside the runtime invoke wrappers, so no need to compile them.
6025 */
6026 info->compiled_method = NULL;
6027 } else {
6028 MonoException *jit_ex = NULL;
6029
6030 info->compiled_method = mono_jit_compile_method_with_opt (method, default_opt, &jit_ex);
6031 if (!info->compiled_method) {
6032 g_free (info);
6033 g_assert (jit_ex);
6034 if (exc) {
6035 *exc = (MonoObject*)jit_ex;
6036 return NULL;
6037 } else {
6038 mono_raise_exception (jit_ex);
6039 }
6040 }
6041
6042 info->compiled_method = mini_add_method_trampoline (NULL, method, info->compiled_method, NULL, mono_method_needs_static_rgctx_invoke (method, FALSE));
6043 }
6044
6045 /*
6046 * We want to avoid AOTing 1000s of runtime-invoke wrappers when running
6047 * in full-aot mode, so we use a slower, but more generic wrapper if
6048 * possible, built on top of the OP_DYN_CALL opcode provided by the JIT.
6049 */
6050 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
6051 if (mono_aot_only || debug_options.dyn_runtime_invoke) {
6052 MonoMethodSignature *sig = mono_method_signature (method);
6053 gboolean supported = TRUE;
6054 int i;
6055
6056 if (method->string_ctor)
6057 sig = mono_marshal_get_string_ctor_signature (method);
6058
6059 for (i = 0; i < sig->param_count; ++i) {
6060 MonoType *t = sig->params [i];
6061
6062 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
6063 supported = FALSE;
6064 }
6065
6066 if (method->klass->contextbound || !info->compiled_method)
6067 supported = FALSE;
6068
6069 if (supported)
6070 info->dyn_call_info = mono_arch_dyn_call_prepare (sig);
6071
6072 if (info->dyn_call_info) {
6073 switch (sig->ret->type) {
6074 case MONO_TYPE_VOID:
6075 break;
6076 case MONO_TYPE_I1:
6077 case MONO_TYPE_U1:
6078 case MONO_TYPE_I2:
6079 case MONO_TYPE_U2:
6080 case MONO_TYPE_I4:
6081 case MONO_TYPE_U4:
6082 case MONO_TYPE_I:
6083 case MONO_TYPE_U:
6084 case MONO_TYPE_I8:
6085 case MONO_TYPE_U8:
6086 case MONO_TYPE_BOOLEAN:
6087 case MONO_TYPE_CHAR:
6088 case MONO_TYPE_R4:
6089 case MONO_TYPE_R8:
6090 info->ret_box_class = mono_class_from_mono_type (sig->ret);
6091 break;
6092 case MONO_TYPE_PTR:
6093 info->ret_box_class = mono_defaults.int_class;
6094 break;
6095 case MONO_TYPE_STRING:
6096 case MONO_TYPE_CLASS:
6097 case MONO_TYPE_ARRAY:
6098 case MONO_TYPE_SZARRAY:
6099 case MONO_TYPE_OBJECT:
6100 break;
6101 case MONO_TYPE_GENERICINST:
6102 if (!MONO_TYPE_IS_REFERENCE (sig->ret))
6103 info->ret_box_class = mono_class_from_mono_type (sig->ret);
6104 break;
6105 case MONO_TYPE_VALUETYPE:
6106 info->ret_box_class = mono_class_from_mono_type (sig->ret);
6107 break;
6108 default:
6109 g_assert_not_reached ();
6110 break;
6111 }
6112 }
6113 }
6114 #endif
6115
6116 if (!info->dyn_call_info)
6117 info->runtime_invoke = mono_jit_compile_method (invoke);
6118
6119 mono_domain_lock (domain);
6120 info2 = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
6121 if (info2) {
6122 g_free (info);
6123 info = info2;
6124 } else {
6125 g_hash_table_insert (domain_info->runtime_invoke_hash, method, info);
6126 }
6127 mono_domain_unlock (domain);
6128 }
6129
6130 runtime_invoke = info->runtime_invoke;
6131
6132 /*
6133 * We need this here because mono_marshal_get_runtime_invoke can place
6134 * the helper method in System.Object and not the target class.
6135 */
6136 if (exc) {
6137 *exc = (MonoObject*)mono_runtime_class_init_full (info->vtable, FALSE);
6138 if (*exc)
6139 return NULL;
6140 } else {
6141 mono_runtime_class_init (info->vtable);
6142 }
6143
6144 /* The wrappers expect this to be initialized to NULL */
6145 if (exc)
6146 *exc = NULL;
6147
6148 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
6149 if (info->dyn_call_info) {
6150 MonoMethodSignature *sig = mono_method_signature (method);
6151 gpointer *args;
6152 static RuntimeInvokeDynamicFunction dyn_runtime_invoke;
6153 int i, pindex;
6154 guint8 buf [128];
6155 guint8 retval [128];
6156
6157 if (!dyn_runtime_invoke) {
6158 invoke = mono_marshal_get_runtime_invoke_dynamic ();
6159 dyn_runtime_invoke = mono_jit_compile_method (invoke);
6160 }
6161
6162 /* Convert the arguments to the format expected by start_dyn_call () */
6163 args = g_alloca ((sig->param_count + sig->hasthis) * sizeof (gpointer));
6164 pindex = 0;
6165 if (sig->hasthis)
6166 args [pindex ++] = &obj;
6167 for (i = 0; i < sig->param_count; ++i) {
6168 MonoType *t = sig->params [i];
6169
6170 if (t->byref) {
6171 args [pindex ++] = &params [i];
6172 } else if (MONO_TYPE_IS_REFERENCE (t) || t->type == MONO_TYPE_PTR) {
6173 args [pindex ++] = &params [i];
6174 } else {
6175 args [pindex ++] = params [i];
6176 }
6177 }
6178
6179 //printf ("M: %s\n", mono_method_full_name (method, TRUE));
6180
6181 mono_arch_start_dyn_call (info->dyn_call_info, (gpointer**)args, retval, buf, sizeof (buf));
6182
6183 dyn_runtime_invoke (buf, exc, info->compiled_method);
6184
6185 mono_arch_finish_dyn_call (info->dyn_call_info, buf);
6186
6187 if (info->ret_box_class)
6188 return mono_value_box (domain, info->ret_box_class, retval);
6189 else
6190 return *(MonoObject**)retval;
6191 }
6192 #endif
6193
6194 return runtime_invoke (obj, params, exc, info->compiled_method);
6195 }
6196
6197 void
6198 SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler)
6199 {
6200 MonoException *exc = NULL;
6201 MonoJitInfo *ji;
6202 #if !(defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32))
6203 void *info = NULL;
6204 #endif
6205 GET_CONTEXT;
6206
6207 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
6208
6209 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
6210 if (mono_arch_is_int_overflow (ctx, info))
6211 /*
6212 * The spec says this throws ArithmeticException, but MS throws the derived
6213 * OverflowException.
6214 */
6215 exc = mono_get_exception_overflow ();
6216 else
6217 exc = mono_get_exception_divide_by_zero ();
6218 #else
6219 exc = mono_get_exception_divide_by_zero ();
6220 #endif
6221
6222 if (!ji) {
6223 if (mono_chain_signal (SIG_HANDLER_PARAMS))
6224 return;
6225
6226 mono_handle_native_sigsegv (SIGSEGV, ctx);
6227 }
6228
6229 mono_arch_handle_exception (ctx, exc);
6230 }
6231
6232 void
6233 SIG_HANDLER_SIGNATURE (mono_sigill_signal_handler)
6234 {
6235 MonoException *exc;
6236 GET_CONTEXT;
6237
6238 exc = mono_get_exception_execution_engine ("SIGILL");
6239
6240 mono_arch_handle_exception (ctx, exc);
6241 }
6242
6243 #if defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32)
6244 #define HAVE_SIG_INFO
6245 #endif
6246
6247 void
6248 SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler)
6249 {
6250 MonoJitInfo *ji;
6251 MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
6252 gpointer fault_addr = NULL;
6253
6254 GET_CONTEXT;
6255
6256 #if defined(MONO_ARCH_SOFT_DEBUG_SUPPORTED) && defined(HAVE_SIG_INFO)
6257 if (mono_arch_is_single_step_event (info, ctx)) {
6258 mono_debugger_agent_single_step_event (ctx);
6259 return;
6260 } else if (mono_arch_is_breakpoint_event (info, ctx)) {
6261 mono_debugger_agent_breakpoint_hit (ctx);
6262 return;
6263 }
6264 #endif
6265
6266 #if !defined(HOST_WIN32) && defined(HAVE_SIG_INFO)
6267 fault_addr = info->si_addr;
6268 if (mono_aot_is_pagefault (info->si_addr)) {
6269 mono_aot_handle_pagefault (info->si_addr);
6270 return;
6271 }
6272 #endif
6273
6274 /* The thread might no be registered with the runtime */
6275 if (!mono_domain_get () || !jit_tls) {
6276 if (mono_chain_signal (SIG_HANDLER_PARAMS))
6277 return;
6278 mono_handle_native_sigsegv (SIGSEGV, ctx);
6279 }
6280
6281 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
6282
6283 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
6284 if (mono_handle_soft_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr))
6285 return;
6286
6287 #ifdef MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX
6288 /* info->si_addr seems to be NULL on some kernels when handling stack overflows */
6289 fault_addr = info->si_addr;
6290 if (fault_addr == NULL) {
6291 MonoContext mctx;
6292
6293 mono_arch_sigctx_to_monoctx (ctx, &mctx);
6294
6295 fault_addr = MONO_CONTEXT_GET_SP (&mctx);
6296 }
6297 #endif
6298
6299 if (jit_tls->stack_size &&
6300 ABS ((guint8*)fault_addr - ((guint8*)jit_tls->end_of_stack - jit_tls->stack_size)) < 8192 * sizeof (gpointer)) {
6301 /*
6302 * The hard-guard page has been hit: there is not much we can do anymore
6303 * Print a hopefully clear message and abort.
6304 */
6305 mono_handle_hard_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr);
6306 g_assert_not_reached ();
6307 } else {
6308 /* The original handler might not like that it is executed on an altstack... */
6309 if (!ji && mono_chain_signal (SIG_HANDLER_PARAMS))
6310 return;
6311
6312 mono_arch_handle_altstack_exception (ctx, info->si_addr, FALSE);
6313 }
6314 #else
6315
6316 if (!ji) {
6317 if (mono_chain_signal (SIG_HANDLER_PARAMS))
6318 return;
6319
6320 mono_handle_native_sigsegv (SIGSEGV, ctx);
6321 }
6322
6323 mono_arch_handle_exception (ctx, NULL);
6324 #endif
6325 }
6326
6327 void
6328 SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler)
6329 {
6330 MonoException *exc;
6331 GET_CONTEXT;
6332
6333 exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
6334
6335 mono_arch_handle_exception (ctx, exc);
6336 }
6337
6338 /* mono_jit_create_remoting_trampoline:
6339 * @method: pointer to the method info
6340 *
6341 * Creates a trampoline which calls the remoting functions. This
6342 * is used in the vtable of transparent proxies.
6343 *
6344 * Returns: a pointer to the newly created code
6345 */
6346 static gpointer
6347 mono_jit_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
6348 {
6349 MonoMethod *nm;
6350 guint8 *addr = NULL;
6351
6352 if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && mono_method_signature (method)->generic_param_count) {
6353 return mono_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
6354 domain, NULL);
6355 }
6356
6357 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
6358 (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
6359 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
6360 addr = mono_compile_method (nm);
6361 } else {
6362 addr = mono_compile_method (method);
6363 }
6364 return mono_get_addr_from_ftnptr (addr);
6365 }
6366
6367 static gpointer *vtable_trampolines;
6368 static int vtable_trampolines_size;
6369
6370 gpointer
6371 mini_get_vtable_trampoline (int slot_index)
6372 {
6373 int index = slot_index + MONO_IMT_SIZE;
6374
6375 g_assert (slot_index >= - MONO_IMT_SIZE);
6376 if (!vtable_trampolines || slot_index + MONO_IMT_SIZE >= vtable_trampolines_size) {
6377 mono_jit_lock ();
6378 if (!vtable_trampolines || index >= vtable_trampolines_size) {
6379 int new_size;
6380 gpointer new_table;
6381
6382 new_size = vtable_trampolines_size ? vtable_trampolines_size * 2 : 128;
6383 while (new_size <= index)
6384 new_size *= 2;
6385 new_table = g_new0 (gpointer, new_size);
6386
6387 if (vtable_trampolines)
6388 memcpy (new_table, vtable_trampolines, vtable_trampolines_size * sizeof (gpointer));
6389 g_free (vtable_trampolines);
6390 mono_memory_barrier ();
6391 vtable_trampolines = new_table;
6392 vtable_trampolines_size = new_size;
6393 }
6394 mono_jit_unlock ();
6395 }
6396
6397 if (!vtable_trampolines [index])
6398 vtable_trampolines [index] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot_index), MONO_TRAMPOLINE_VCALL, mono_get_root_domain (), NULL);
6399 return vtable_trampolines [index];
6400 }
6401
6402 static gpointer
6403 mini_get_imt_trampoline (int slot_index)
6404 {
6405 return mini_get_vtable_trampoline (slot_index - MONO_IMT_SIZE);
6406 }
6407
6408 static void
6409 mini_parse_debug_options (void)
6410 {
6411 char *options = getenv ("MONO_DEBUG");
6412 gchar **args, **ptr;
6413
6414 if (!options)
6415 return;
6416
6417 args = g_strsplit (options, ",", -1);
6418
6419 for (ptr = args; ptr && *ptr; ptr++) {
6420 const char *arg = *ptr;
6421
6422 if (!strcmp (arg, "handle-sigint"))
6423 debug_options.handle_sigint = TRUE;
6424 else if (!strcmp (arg, "keep-delegates"))
6425 debug_options.keep_delegates = TRUE;
6426 else if (!strcmp (arg, "reverse-pinvoke-exceptions"))
6427 debug_options.reverse_pinvoke_exceptions = TRUE;
6428 else if (!strcmp (arg, "collect-pagefault-stats"))
6429 debug_options.collect_pagefault_stats = TRUE;
6430 else if (!strcmp (arg, "break-on-unverified"))
6431 debug_options.break_on_unverified = TRUE;
6432 else if (!strcmp (arg, "no-gdb-backtrace"))
6433 debug_options.no_gdb_backtrace = TRUE;
6434 else if (!strcmp (arg, "suspend-on-sigsegv"))
6435 debug_options.suspend_on_sigsegv = TRUE;
6436 else if (!strcmp (arg, "suspend-on-unhandled"))
6437 debug_options.suspend_on_unhandled = TRUE;
6438 else if (!strcmp (arg, "dont-free-domains"))
6439 mono_dont_free_domains = TRUE;
6440 else if (!strcmp (arg, "dyn-runtime-invoke"))
6441 debug_options.dyn_runtime_invoke = TRUE;
6442 else if (!strcmp (arg, "gdb"))
6443 debug_options.gdb = TRUE;
6444 else if (!strcmp (arg, "explicit-null-checks"))
6445 debug_options.explicit_null_checks = TRUE;
6446 else if (!strcmp (arg, "gen-seq-points"))
6447 debug_options.gen_seq_points = TRUE;
6448 else if (!strcmp (arg, "init-stacks"))
6449 debug_options.init_stacks = TRUE;
6450 else if (!strcmp (arg, "casts"))
6451 debug_options.better_cast_details = TRUE;
6452 else if (!strcmp (arg, "soft-breakpoints"))
6453 debug_options.soft_breakpoints = TRUE;
6454 else {
6455 fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
6456 fprintf (stderr, "Available options: 'handle-sigint', 'keep-delegates', 'reverse-pinvoke-exceptions', 'collect-pagefault-stats', 'break-on-unverified', 'no-gdb-backtrace', 'dont-free-domains', 'suspend-on-sigsegv', 'suspend-on-unhandled', 'dyn-runtime-invoke', 'gdb', 'explicit-null-checks', 'init-stacks'\n");
6457 exit (1);
6458 }
6459 }
6460
6461 g_strfreev (args);
6462 }
6463
6464 MonoDebugOptions *
6465 mini_get_debug_options (void)
6466 {
6467 return &debug_options;
6468 }
6469
6470 static gpointer
6471 mini_create_ftnptr (MonoDomain *domain, gpointer addr)
6472 {
6473 #if !defined(__ia64__) && !defined(__ppc64__) && !defined(__powerpc64__)
6474 return addr;
6475 #else
6476
6477 gpointer* desc = NULL;
6478
6479 if ((desc = g_hash_table_lookup (domain->ftnptrs_hash, addr)))
6480 return desc;
6481 # ifdef __ia64__
6482 desc = mono_domain_code_reserve (domain, 2 * sizeof (gpointer));
6483
6484 desc [0] = addr;
6485 desc [1] = NULL;
6486 # elif defined(__ppc64__) || defined(__powerpc64__)
6487 gpointer *desc;
6488
6489 desc = mono_domain_alloc0 (domain, 3 * sizeof (gpointer));
6490
6491 desc [0] = addr;
6492 desc [1] = NULL;
6493 desc [2] = NULL;
6494 # endif
6495 g_hash_table_insert (domain->ftnptrs_hash, addr, desc);
6496 return desc;
6497 #endif
6498 }
6499
6500 static gpointer
6501 mini_get_addr_from_ftnptr (gpointer descr)
6502 {
6503 #if defined(__ia64__) || defined(__ppc64__) || defined(__powerpc64__)
6504 return *(gpointer*)descr;
6505 #else
6506 return descr;
6507 #endif
6508 }
6509
6510 static void
6511 register_jit_stats (void)
6512 {
6513 mono_counters_register ("Compiled methods", MONO_COUNTER_JIT | MONO_COUNTER_WORD, &mono_jit_stats.methods_compiled);
6514 mono_counters_register ("Methods from AOT", MONO_COUNTER_JIT | MONO_COUNTER_WORD, &mono_jit_stats.methods_aot);
6515 mono_counters_register ("Methods JITted using mono JIT", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_without_llvm);
6516 mono_counters_register ("Methods JITted using LLVM", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_with_llvm);
6517 mono_counters_register ("Total time spent JITting (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_time);
6518 mono_counters_register ("Basic blocks", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.basic_blocks);
6519 mono_counters_register ("Max basic blocks", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.max_basic_blocks);
6520 mono_counters_register ("Allocated vars", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocate_var);
6521 mono_counters_register ("Code reallocs", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.code_reallocs);
6522 mono_counters_register ("Allocated code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocated_code_size);
6523 mono_counters_register ("Inlineable methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.inlineable_methods);
6524 mono_counters_register ("Inlined methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.inlined_methods);
6525 mono_counters_register ("Regvars", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.regvars);
6526 mono_counters_register ("Locals stack size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.locals_stack_size);
6527 mono_counters_register ("Method cache lookups", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_lookups);
6528 mono_counters_register ("Compiled CIL code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.cil_code_size);
6529 mono_counters_register ("Native code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.native_code_size);
6530 }
6531
6532 static void runtime_invoke_info_free (gpointer value);
6533
6534 static void
6535 mini_create_jit_domain_info (MonoDomain *domain)
6536 {
6537 MonoJitDomainInfo *info = g_new0 (MonoJitDomainInfo, 1);
6538
6539 info->class_init_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6540 info->jump_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6541 info->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6542 info->delegate_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6543 info->llvm_vcall_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6544 info->runtime_invoke_hash = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, runtime_invoke_info_free);
6545 info->seq_points = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, g_free);
6546 info->arch_seq_points = g_hash_table_new (mono_aligned_addr_hash, NULL);
6547 info->jump_target_hash = g_hash_table_new (NULL, NULL);
6548
6549 domain->runtime_info = info;
6550 }
6551
6552 static void
6553 delete_jump_list (gpointer key, gpointer value, gpointer user_data)
6554 {
6555 MonoJumpList *jlist = value;
6556 g_slist_free (jlist->list);
6557 }
6558
6559 static void
6560 dynamic_method_info_free (gpointer key, gpointer value, gpointer user_data)
6561 {
6562 MonoJitDynamicMethodInfo *di = value;
6563 mono_code_manager_destroy (di->code_mp);
6564 g_free (di);
6565 }
6566
6567 static void
6568 runtime_invoke_info_free (gpointer value)
6569 {
6570 RuntimeInvokeInfo *info = (RuntimeInvokeInfo*)value;
6571
6572 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
6573 if (info->dyn_call_info)
6574 mono_arch_dyn_call_free (info->dyn_call_info);
6575 #endif
6576 g_free (info);
6577 }
6578
6579 static void
6580 mini_free_jit_domain_info (MonoDomain *domain)
6581 {
6582 MonoJitDomainInfo *info = domain_jit_info (domain);
6583
6584 g_hash_table_foreach (info->jump_target_hash, delete_jump_list, NULL);
6585 g_hash_table_destroy (info->jump_target_hash);
6586 if (info->jump_target_got_slot_hash) {
6587 g_hash_table_foreach (info->jump_target_got_slot_hash, delete_jump_list, NULL);
6588 g_hash_table_destroy (info->jump_target_got_slot_hash);
6589 }
6590 if (info->dynamic_code_hash) {
6591 g_hash_table_foreach (info->dynamic_code_hash, dynamic_method_info_free, NULL);
6592 g_hash_table_destroy (info->dynamic_code_hash);
6593 }
6594 if (info->method_code_hash)
6595 g_hash_table_destroy (info->method_code_hash);
6596 g_hash_table_destroy (info->class_init_trampoline_hash);
6597 g_hash_table_destroy (info->jump_trampoline_hash);
6598 g_hash_table_destroy (info->jit_trampoline_hash);
6599 g_hash_table_destroy (info->delegate_trampoline_hash);
6600 if (info->static_rgctx_trampoline_hash)
6601 g_hash_table_destroy (info->static_rgctx_trampoline_hash);
6602 g_hash_table_destroy (info->llvm_vcall_trampoline_hash);
6603 g_hash_table_destroy (info->runtime_invoke_hash);
6604 g_hash_table_destroy (info->seq_points);
6605 g_hash_table_destroy (info->arch_seq_points);
6606
6607 if (info->agent_info)
6608 mono_debugger_agent_free_domain_info (domain);
6609
6610 g_free (domain->runtime_info);
6611 domain->runtime_info = NULL;
6612 }
6613
6614 MonoDomain *
6615 mini_init (const char *filename, const char *runtime_version)
6616 {
6617 MonoDomain *domain;
6618 MonoRuntimeCallbacks callbacks;
6619 MonoThreadInfoRuntimeCallbacks ticallbacks;
6620
6621 MONO_VES_INIT_BEGIN ();
6622
6623 #if defined(__linux__) && !defined(__native_client__)
6624 if (access ("/proc/self/maps", F_OK) != 0) {
6625 g_print ("Mono requires /proc to be mounted.\n");
6626 exit (1);
6627 }
6628 #endif
6629
6630 /* Happens when using the embedding interface */
6631 if (!default_opt_set)
6632 default_opt = mono_parse_default_optimizations (NULL);
6633
6634 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
6635 if (mono_aot_only)
6636 mono_set_generic_sharing_vt_supported (TRUE);
6637 #endif
6638
6639 InitializeCriticalSection (&jit_mutex);
6640
6641 #ifdef MONO_DEBUGGER_SUPPORTED
6642 if (mini_debug_running_inside_mdb ())
6643 mini_debugger_init ();
6644 #endif
6645
6646 #ifdef MONO_HAVE_FAST_TLS
6647 MONO_FAST_TLS_INIT (mono_jit_tls);
6648 MONO_FAST_TLS_INIT (mono_lmf_addr);
6649 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
6650 MONO_FAST_TLS_INIT (mono_lmf);
6651 #endif
6652 #endif
6653
6654 #ifdef MONO_ARCH_HAVE_TLS_GET
6655 mono_runtime_set_has_tls_get (MONO_ARCH_HAVE_TLS_GET);
6656 #else
6657 mono_runtime_set_has_tls_get (FALSE);
6658 #endif
6659
6660 if (!global_codeman)
6661 global_codeman = mono_code_manager_new ();
6662 jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
6663
6664 memset (&callbacks, 0, sizeof (callbacks));
6665 callbacks.create_ftnptr = mini_create_ftnptr;
6666 callbacks.get_addr_from_ftnptr = mini_get_addr_from_ftnptr;
6667 callbacks.get_runtime_build_info = mono_get_runtime_build_info;
6668 callbacks.set_cast_details = mono_set_cast_details;
6669 callbacks.debug_log = mono_debugger_agent_debug_log;
6670 callbacks.debug_log_is_enabled = mono_debugger_agent_debug_log_is_enabled;
6671
6672 #ifdef MONO_ARCH_HAVE_IMT
6673 if (mono_use_imt) {
6674 callbacks.get_vtable_trampoline = mini_get_vtable_trampoline;
6675 callbacks.get_imt_trampoline = mini_get_imt_trampoline;
6676 }
6677 #endif
6678
6679 mono_install_callbacks (&callbacks);
6680
6681 memset (&ticallbacks, 0, sizeof (ticallbacks));
6682 ticallbacks.setup_async_callback = mono_setup_async_callback;
6683 ticallbacks.thread_state_init_from_sigctx = mono_thread_state_init_from_sigctx;
6684 ticallbacks.thread_state_init_from_handle = mono_thread_state_init_from_handle;
6685
6686 mono_threads_runtime_init (&ticallbacks);
6687
6688
6689 if (getenv ("MONO_DEBUG") != NULL)
6690 mini_parse_debug_options ();
6691
6692 mono_arch_cpu_init ();
6693
6694 mono_arch_init ();
6695
6696 mono_unwind_init ();
6697
6698 if (getenv ("MONO_XDEBUG")) {
6699 char *xdebug_opts = getenv ("MONO_XDEBUG");
6700 mono_xdebug_init (xdebug_opts);
6701 /* So methods for multiple domains don't have the same address */
6702 mono_dont_free_domains = TRUE;
6703 mono_using_xdebug = TRUE;
6704 } else if (mini_get_debug_options ()->gdb) {
6705 mono_xdebug_init ((char*)"gdb");
6706 mono_dont_free_domains = TRUE;
6707 mono_using_xdebug = TRUE;
6708 }
6709
6710 #ifdef ENABLE_LLVM
6711 if (mono_use_llvm) {
6712 if (!mono_llvm_load (NULL)) {
6713 mono_use_llvm = FALSE;
6714 fprintf (stderr, "Mono Warning: llvm support could not be loaded.\n");
6715 }
6716 }
6717 if (mono_use_llvm)
6718 mono_llvm_init ();
6719 #endif
6720
6721 mono_trampolines_init ();
6722
6723 if (!g_thread_supported ())
6724 g_thread_init (NULL);
6725
6726 mono_native_tls_alloc (&mono_jit_tls_id, NULL);
6727
6728 if (default_opt & MONO_OPT_AOT)
6729 mono_aot_init ();
6730
6731 mono_debugger_agent_init ();
6732
6733 #ifdef MONO_ARCH_GSHARED_SUPPORTED
6734 mono_set_generic_sharing_supported (TRUE);
6735 #endif
6736
6737 #ifndef MONO_CROSS_COMPILE
6738 mono_runtime_install_handlers ();
6739 #endif
6740 mono_threads_install_cleanup (mini_thread_cleanup);
6741
6742 #ifdef MONO_ARCH_HAVE_NOTIFY_PENDING_EXC
6743 // This is experimental code so provide an env var to switch it off
6744 if (getenv ("MONO_DISABLE_PENDING_EXCEPTIONS")) {
6745 printf ("MONO_DISABLE_PENDING_EXCEPTIONS env var set.\n");
6746 } else {
6747 check_for_pending_exc = FALSE;
6748 mono_threads_install_notify_pending_exc (mono_arch_notify_pending_exc);
6749 }
6750 #endif
6751
6752 #define JIT_TRAMPOLINES_WORK
6753 #ifdef JIT_TRAMPOLINES_WORK
6754 mono_install_compile_method (mono_jit_compile_method);
6755 mono_install_free_method (mono_jit_free_method);
6756 mono_install_trampoline (mono_create_jit_trampoline);
6757 mono_install_jump_trampoline (mono_create_jump_trampoline);
6758 mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
6759 mono_install_delegate_trampoline (mono_create_delegate_trampoline);
6760 mono_install_create_domain_hook (mini_create_jit_domain_info);
6761 mono_install_free_domain_hook (mini_free_jit_domain_info);
6762 #endif
6763 #define JIT_INVOKE_WORKS
6764 #ifdef JIT_INVOKE_WORKS
6765 mono_install_runtime_invoke (mono_jit_runtime_invoke);
6766 #endif
6767 mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
6768 mono_install_get_class_from_name (mono_aot_get_class_from_name);
6769 mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
6770
6771 if (debug_options.collect_pagefault_stats) {
6772 mono_aot_set_make_unreadable (TRUE);
6773 }
6774
6775 if (runtime_version)
6776 domain = mono_init_version (filename, runtime_version);
6777 else
6778 domain = mono_init_from_assembly (filename, filename);
6779
6780 if (mono_aot_only) {
6781 /* This helps catch code allocation requests */
6782 mono_code_manager_set_read_only (domain->code_mp);
6783 mono_marshal_use_aot_wrappers (TRUE);
6784 }
6785
6786 #ifdef MONO_ARCH_HAVE_IMT
6787 if (mono_use_imt) {
6788 if (mono_aot_only)
6789 mono_install_imt_thunk_builder (mono_aot_get_imt_thunk);
6790 else
6791 mono_install_imt_thunk_builder (mono_arch_build_imt_thunk);
6792 }
6793 #endif
6794 /*Init arch tls information only after the metadata side is inited to make sure we see dynamic appdomain tls keys*/
6795 mono_arch_finish_init ();
6796
6797
6798 /* This must come after mono_init () in the aot-only case */
6799 mono_exceptions_init ();
6800
6801 mono_icall_init ();
6802
6803 /* This should come after mono_init () too */
6804 mini_gc_init ();
6805
6806 mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
6807 ves_icall_get_frame_info);
6808 mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
6809 ves_icall_get_trace);
6810 mono_add_internal_call ("System.Exception::get_trace",
6811 ves_icall_System_Exception_get_trace);
6812 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
6813 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
6814 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
6815 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
6816 mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
6817 mono_runtime_install_handlers);
6818
6819 #ifdef PLATFORM_ANDROID
6820 mono_add_internal_call ("System.Diagnostics.Debugger::Mono_UnhandledException_internal",
6821 mono_debugger_agent_unhandled_exception);
6822 #endif
6823
6824 mono_create_helper_signatures ();
6825
6826 register_jit_stats ();
6827
6828 #define JIT_CALLS_WORK
6829 #ifdef JIT_CALLS_WORK
6830 /* Needs to be called here since register_jit_icall depends on it */
6831 mono_marshal_init ();
6832
6833 mono_arch_register_lowlevel_calls ();
6834 register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
6835 register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
6836 register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
6837 register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
6838 register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
6839 register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "ptr ptr", TRUE);
6840 register_icall (mono_jit_set_domain, "mono_jit_set_domain", "void ptr", TRUE);
6841 register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
6842
6843 register_icall (mono_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
6844 register_icall (mono_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
6845 register_icall (mono_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
6846 "void ptr", TRUE);
6847 register_icall (mono_thread_get_undeniable_exception, "mono_thread_get_undeniable_exception", "object", FALSE);
6848 register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
6849 register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
6850 register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
6851 register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
6852
6853 #if defined(__native_client__) || defined(__native_client_codegen__)
6854 register_icall (mono_nacl_gc, "mono_nacl_gc", "void", TRUE);
6855 #endif
6856 /*
6857 * NOTE, NOTE, NOTE, NOTE:
6858 * when adding emulation for some opcodes, remember to also add a dummy
6859 * rule to the burg files, because we need the arity information to be correct.
6860 */
6861 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
6862 mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
6863 mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
6864 mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
6865 mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
6866 mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
6867 mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
6868 mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
6869 #endif
6870
6871 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
6872 mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
6873 mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
6874 mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
6875 #endif
6876
6877 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
6878 mono_register_opcode_emulation (OP_IDIV, "__emul_op_idiv", "int32 int32 int32", mono_idiv, FALSE);
6879 mono_register_opcode_emulation (OP_IDIV_UN, "__emul_op_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
6880 mono_register_opcode_emulation (OP_IREM, "__emul_op_irem", "int32 int32 int32", mono_irem, FALSE);
6881 mono_register_opcode_emulation (OP_IREM_UN, "__emul_op_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
6882 #endif
6883
6884 #ifdef MONO_ARCH_EMULATE_MUL_DIV
6885 mono_register_opcode_emulation (OP_IMUL, "__emul_op_imul", "int32 int32 int32", mono_imul, TRUE);
6886 #endif
6887
6888 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_MUL_OVF)
6889 mono_register_opcode_emulation (OP_IMUL_OVF, "__emul_op_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
6890 mono_register_opcode_emulation (OP_IMUL_OVF_UN, "__emul_op_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
6891 #endif
6892
6893 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_SOFT_FLOAT)
6894 mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, FALSE);
6895 #endif
6896
6897 mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
6898 mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
6899 mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
6900 mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
6901
6902 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
6903 mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
6904 #endif
6905 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
6906 mono_register_opcode_emulation (OP_ICONV_TO_R_UN, "__emul_iconv_to_r_un", "double int32", mono_conv_to_r8_un, FALSE);
6907 #endif
6908 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
6909 mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
6910 #endif
6911 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
6912 mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
6913 #endif
6914 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
6915 mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
6916 #endif
6917 #ifdef MONO_ARCH_EMULATE_FREM
6918 #if defined(__default_codegen__)
6919 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
6920 #elif defined(__native_client_codegen__)
6921 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", mono_fmod, FALSE);
6922 #endif
6923 #endif
6924
6925 #ifdef MONO_ARCH_SOFT_FLOAT
6926 mono_register_opcode_emulation (OP_FSUB, "__emul_fsub", "double double double", mono_fsub, FALSE);
6927 mono_register_opcode_emulation (OP_FADD, "__emul_fadd", "double double double", mono_fadd, FALSE);
6928 mono_register_opcode_emulation (OP_FMUL, "__emul_fmul", "double double double", mono_fmul, FALSE);
6929 mono_register_opcode_emulation (OP_FNEG, "__emul_fneg", "double double", mono_fneg, FALSE);
6930 mono_register_opcode_emulation (OP_ICONV_TO_R8, "__emul_iconv_to_r8", "double int32", mono_conv_to_r8, FALSE);
6931 mono_register_opcode_emulation (OP_ICONV_TO_R4, "__emul_iconv_to_r4", "double int32", mono_conv_to_r4, FALSE);
6932 mono_register_opcode_emulation (OP_FCONV_TO_R4, "__emul_fconv_to_r4", "double double", mono_fconv_r4, FALSE);
6933 mono_register_opcode_emulation (OP_FCONV_TO_I1, "__emul_fconv_to_i1", "int8 double", mono_fconv_i1, FALSE);
6934 mono_register_opcode_emulation (OP_FCONV_TO_I2, "__emul_fconv_to_i2", "int16 double", mono_fconv_i2, FALSE);
6935 mono_register_opcode_emulation (OP_FCONV_TO_I4, "__emul_fconv_to_i4", "int32 double", mono_fconv_i4, FALSE);
6936 mono_register_opcode_emulation (OP_FCONV_TO_U1, "__emul_fconv_to_u1", "uint8 double", mono_fconv_u1, FALSE);
6937 mono_register_opcode_emulation (OP_FCONV_TO_U2, "__emul_fconv_to_u2", "uint16 double", mono_fconv_u2, FALSE);
6938 #if SIZEOF_VOID_P == 4
6939 mono_register_opcode_emulation (OP_FCONV_TO_I, "__emul_fconv_to_i", "int32 double", mono_fconv_i4, FALSE);
6940 #endif
6941
6942 mono_register_opcode_emulation (OP_FBEQ, "__emul_fcmp_eq", "uint32 double double", mono_fcmp_eq, FALSE);
6943 mono_register_opcode_emulation (OP_FBLT, "__emul_fcmp_lt", "uint32 double double", mono_fcmp_lt, FALSE);
6944 mono_register_opcode_emulation (OP_FBGT, "__emul_fcmp_gt", "uint32 double double", mono_fcmp_gt, FALSE);
6945 mono_register_opcode_emulation (OP_FBLE, "__emul_fcmp_le", "uint32 double double", mono_fcmp_le, FALSE);
6946 mono_register_opcode_emulation (OP_FBGE, "__emul_fcmp_ge", "uint32 double double", mono_fcmp_ge, FALSE);
6947 mono_register_opcode_emulation (OP_FBNE_UN, "__emul_fcmp_ne_un", "uint32 double double", mono_fcmp_ne_un, FALSE);
6948 mono_register_opcode_emulation (OP_FBLT_UN, "__emul_fcmp_lt_un", "uint32 double double", mono_fcmp_lt_un, FALSE);
6949 mono_register_opcode_emulation (OP_FBGT_UN, "__emul_fcmp_gt_un", "uint32 double double", mono_fcmp_gt_un, FALSE);
6950 mono_register_opcode_emulation (OP_FBLE_UN, "__emul_fcmp_le_un", "uint32 double double", mono_fcmp_le_un, FALSE);
6951 mono_register_opcode_emulation (OP_FBGE_UN, "__emul_fcmp_ge_un", "uint32 double double", mono_fcmp_ge_un, FALSE);
6952
6953 mono_register_opcode_emulation (OP_FCEQ, "__emul_fcmp_ceq", "uint32 double double", mono_fceq, FALSE);
6954 mono_register_opcode_emulation (OP_FCGT, "__emul_fcmp_cgt", "uint32 double double", mono_fcgt, FALSE);
6955 mono_register_opcode_emulation (OP_FCGT_UN, "__emul_fcmp_cgt_un", "uint32 double double", mono_fcgt_un, FALSE);
6956 mono_register_opcode_emulation (OP_FCLT, "__emul_fcmp_clt", "uint32 double double", mono_fclt, FALSE);
6957 mono_register_opcode_emulation (OP_FCLT_UN, "__emul_fcmp_clt_un", "uint32 double double", mono_fclt_un, FALSE);
6958
6959 register_icall (mono_fload_r4, "mono_fload_r4", "double ptr", FALSE);
6960 register_icall (mono_fstore_r4, "mono_fstore_r4", "void double ptr", FALSE);
6961 register_icall (mono_fload_r4_arg, "mono_fload_r4_arg", "uint32 double", FALSE);
6962 register_icall (mono_isfinite, "mono_isfinite", "uint32 double", FALSE);
6963 #endif
6964
6965 #ifdef COMPRESSED_INTERFACE_BITMAP
6966 register_icall (mono_class_interface_match, "mono_class_interface_match", "uint32 ptr int32", TRUE);
6967 #endif
6968
6969 #if SIZEOF_REGISTER == 4
6970 mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
6971 #endif
6972
6973 /* other jit icalls */
6974 register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
6975 register_icall (mono_class_static_field_address , "mono_class_static_field_address",
6976 "ptr ptr ptr", FALSE);
6977 register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
6978 register_icall (mono_ldtoken_wrapper_generic_shared, "mono_ldtoken_wrapper_generic_shared",
6979 "ptr ptr ptr ptr", FALSE);
6980 register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
6981 register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
6982 register_icall (mono_helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
6983 register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
6984 register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
6985 register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
6986 register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
6987 register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
6988 register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
6989 register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
6990 register_icall (mono_ldvirtfn_gshared, "mono_ldvirtfn_gshared", "ptr object ptr", FALSE);
6991 register_icall (mono_helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
6992 register_icall (mono_helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
6993 register_icall (mono_helper_ldstr_mscorlib, "helper_ldstr_mscorlib", "object int", FALSE);
6994 register_icall (mono_helper_newobj_mscorlib, "helper_newobj_mscorlib", "object int", FALSE);
6995 register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
6996 register_icall (mono_object_castclass, "mono_object_castclass", "object object ptr", FALSE);
6997 register_icall (mono_break, "mono_break", NULL, TRUE);
6998 register_icall (mono_create_corlib_exception_0, "mono_create_corlib_exception_0", "object int", TRUE);
6999 register_icall (mono_create_corlib_exception_1, "mono_create_corlib_exception_1", "object int object", TRUE);
7000 register_icall (mono_create_corlib_exception_2, "mono_create_corlib_exception_2", "object int object object", TRUE);
7001 register_icall (mono_array_new_1, "mono_array_new_1", "object ptr int", FALSE);
7002 register_icall (mono_array_new_2, "mono_array_new_2", "object ptr int int", FALSE);
7003 register_icall (mono_array_new_3, "mono_array_new_3", "object ptr int int int", FALSE);
7004 register_icall (mono_get_native_calli_wrapper, "mono_get_native_calli_wrapper", "ptr ptr ptr ptr", FALSE);
7005 register_icall (mono_resume_unwind, "mono_resume_unwind", "void", TRUE);
7006
7007 register_icall (mono_gc_wbarrier_value_copy_bitmap, "mono_gc_wbarrier_value_copy_bitmap", "void ptr ptr int int", FALSE);
7008
7009 register_icall (mono_object_castclass_with_cache, "mono_object_castclass_with_cache", "object object ptr ptr", FALSE);
7010 register_icall (mono_object_isinst_with_cache, "mono_object_isinst_with_cache", "object object ptr ptr", FALSE);
7011
7012 register_icall (mono_debugger_agent_user_break, "mono_debugger_agent_user_break", "void", FALSE);
7013
7014 #endif
7015
7016 mono_generic_sharing_init ();
7017
7018 #ifdef MONO_ARCH_SIMD_INTRINSICS
7019 mono_simd_intrinsics_init ();
7020 #endif
7021
7022 #if MONO_SUPPORT_TASKLETS
7023 mono_tasklets_init ();
7024 #endif
7025
7026 if (mono_compile_aot)
7027 /*
7028 * Avoid running managed code when AOT compiling, since the platform
7029 * might only support aot-only execution.
7030 */
7031 mono_runtime_set_no_exec (TRUE);
7032
7033 #define JIT_RUNTIME_WORKS
7034 #ifdef JIT_RUNTIME_WORKS
7035 mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
7036 mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
7037 mono_thread_attach (domain);
7038 #endif
7039
7040 mono_profiler_runtime_initialized ();
7041
7042 MONO_VES_INIT_END ();
7043
7044 return domain;
7045 }
7046
7047 MonoJitStats mono_jit_stats = {0};
7048
7049 static void
7050 print_jit_stats (void)
7051 {
7052 if (mono_jit_stats.enabled) {
7053 g_print ("Mono Jit statistics\n");
7054 g_print ("Max code size ratio: %.2f (%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
7055 mono_jit_stats.max_ratio_method);
7056 g_print ("Biggest method: %ld (%s)\n", mono_jit_stats.biggest_method_size,
7057 mono_jit_stats.biggest_method);
7058
7059 g_print ("\nCreated object count: %ld\n", mono_stats.new_object_count);
7060 g_print ("Delegates created: %ld\n", mono_stats.delegate_creations);
7061 g_print ("Initialized classes: %ld\n", mono_stats.initialized_class_count);
7062 g_print ("Used classes: %ld\n", mono_stats.used_class_count);
7063 g_print ("Generic vtables: %ld\n", mono_stats.generic_vtable_count);
7064 g_print ("Methods: %ld\n", mono_stats.method_count);
7065 g_print ("Static data size: %ld\n", mono_stats.class_static_data_size);
7066 g_print ("VTable data size: %ld\n", mono_stats.class_vtable_size);
7067 g_print ("Mscorlib mempool size: %d\n", mono_mempool_get_allocated (mono_defaults.corlib->mempool));
7068
7069 g_print ("\nInitialized classes: %ld\n", mono_stats.generic_class_count);
7070 g_print ("Inflated types: %ld\n", mono_stats.inflated_type_count);
7071 g_print ("Generics virtual invokes: %ld\n", mono_jit_stats.generic_virtual_invocations);
7072
7073 g_print ("Sharable generic methods: %ld\n", mono_stats.generics_sharable_methods);
7074 g_print ("Unsharable generic methods: %ld\n", mono_stats.generics_unsharable_methods);
7075 g_print ("Shared generic methods: %ld\n", mono_stats.generics_shared_methods);
7076 g_print ("Shared vtype generic methods: %ld\n", mono_stats.gsharedvt_methods);
7077
7078 g_print ("Dynamic code allocs: %ld\n", mono_stats.dynamic_code_alloc_count);
7079 g_print ("Dynamic code bytes: %ld\n", mono_stats.dynamic_code_bytes_count);
7080 g_print ("Dynamic code frees: %ld\n", mono_stats.dynamic_code_frees_count);
7081
7082 g_print ("IMT tables size: %ld\n", mono_stats.imt_tables_size);
7083 g_print ("IMT number of tables: %ld\n", mono_stats.imt_number_of_tables);
7084 g_print ("IMT number of methods: %ld\n", mono_stats.imt_number_of_methods);
7085 g_print ("IMT used slots: %ld\n", mono_stats.imt_used_slots);
7086 g_print ("IMT colliding slots: %ld\n", mono_stats.imt_slots_with_collisions);
7087 g_print ("IMT max collisions: %ld\n", mono_stats.imt_max_collisions_in_slot);
7088 g_print ("IMT methods at max col: %ld\n", mono_stats.imt_method_count_when_max_collisions);
7089 g_print ("IMT thunks size: %ld\n", mono_stats.imt_thunks_size);
7090
7091 g_print ("JIT info table inserts: %ld\n", mono_stats.jit_info_table_insert_count);
7092 g_print ("JIT info table removes: %ld\n", mono_stats.jit_info_table_remove_count);
7093 g_print ("JIT info table lookups: %ld\n", mono_stats.jit_info_table_lookup_count);
7094
7095 g_print ("Hazardous pointers: %ld\n", mono_stats.hazardous_pointer_count);
7096 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS) {
7097 g_print ("\nDecl security check : %ld\n", mono_jit_stats.cas_declsec_check);
7098 g_print ("LinkDemand (user) : %ld\n", mono_jit_stats.cas_linkdemand);
7099 g_print ("LinkDemand (icall) : %ld\n", mono_jit_stats.cas_linkdemand_icall);
7100 g_print ("LinkDemand (pinvoke) : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
7101 g_print ("LinkDemand (aptc) : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
7102 g_print ("Demand (code gen) : %ld\n", mono_jit_stats.cas_demand_generation);
7103 }
7104
7105 g_free (mono_jit_stats.max_ratio_method);
7106 mono_jit_stats.max_ratio_method = NULL;
7107 g_free (mono_jit_stats.biggest_method);
7108 mono_jit_stats.biggest_method = NULL;
7109 }
7110 }
7111
7112 void
7113 mini_cleanup (MonoDomain *domain)
7114 {
7115 mono_runtime_shutdown_stat_profiler ();
7116
7117 #ifndef DISABLE_COM
7118 cominterop_release_all_rcws ();
7119 #endif
7120
7121 #ifndef MONO_CROSS_COMPILE
7122 mono_runtime_shutdown ();
7123 /*
7124 * mono_runtime_cleanup() and mono_domain_finalize () need to
7125 * be called early since they need the execution engine still
7126 * fully working (mono_domain_finalize may invoke managed finalizers
7127 * and mono_runtime_cleanup will wait for other threads to finish).
7128 */
7129 mono_domain_finalize (domain, 2000);
7130 #endif
7131
7132 /* This accesses metadata so needs to be called before runtime shutdown */
7133 print_jit_stats ();
7134
7135 mono_profiler_shutdown ();
7136
7137 #ifndef MONO_CROSS_COMPILE
7138 mono_runtime_cleanup (domain);
7139 #endif
7140
7141 free_jit_tls_data (mono_native_tls_get_value (mono_jit_tls_id));
7142
7143 mono_icall_cleanup ();
7144
7145 mono_runtime_cleanup_handlers ();
7146
7147 mono_domain_free (domain, TRUE);
7148
7149 mono_debugger_cleanup ();
7150
7151 #ifdef ENABLE_LLVM
7152 if (mono_use_llvm)
7153 mono_llvm_cleanup ();
7154 #endif
7155
7156 mono_aot_cleanup ();
7157
7158 mono_trampolines_cleanup ();
7159
7160 mono_unwind_cleanup ();
7161
7162 if (!mono_dont_free_global_codeman)
7163 mono_code_manager_destroy (global_codeman);
7164 g_hash_table_destroy (jit_icall_name_hash);
7165 g_free (emul_opcode_map);
7166 g_free (emul_opcode_opcodes);
7167 g_free (vtable_trampolines);
7168
7169 mono_arch_cleanup ();
7170
7171 mono_generic_sharing_cleanup ();
7172
7173 mono_cleanup ();
7174
7175 mono_trace_cleanup ();
7176
7177 mono_counters_dump (-1, stdout);
7178
7179 if (mono_inject_async_exc_method)
7180 mono_method_desc_free (mono_inject_async_exc_method);
7181
7182 mono_native_tls_free (mono_jit_tls_id);
7183
7184 DeleteCriticalSection (&jit_mutex);
7185
7186 DeleteCriticalSection (&mono_delegate_section);
7187 }
7188
7189 void
7190 mono_set_defaults (int verbose_level, guint32 opts)
7191 {
7192 mini_verbose = verbose_level;
7193 mono_set_optimizations (opts);
7194 }
7195
7196 void
7197 mono_disable_optimizations (guint32 opts)
7198 {
7199 default_opt &= ~opts;
7200 }
7201
7202 void
7203 mono_set_optimizations (guint32 opts)
7204 {
7205 default_opt = opts;
7206 default_opt_set = TRUE;
7207 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
7208 mono_set_generic_sharing_vt_supported (mono_aot_only || ((default_opt & MONO_OPT_GSHAREDVT) != 0));
7209 #endif
7210 }
7211
7212 void
7213 mono_set_verbose_level (guint32 level)
7214 {
7215 mini_verbose = level;
7216 }
7217
7218 /**
7219 * mono_get_runtime_build_info:
7220 *
7221 * Return the runtime version + build date in string format.
7222 * The returned string is owned by the caller. The returned string
7223 * format is "VERSION (FULL_VERSION BUILD_DATE)" and build date is optional.
7224 */
7225 char*
7226 mono_get_runtime_build_info (void)
7227 {
7228 if (mono_build_date)
7229 return g_strdup_printf ("%s (%s %s)", VERSION, FULL_VERSION, mono_build_date);
7230 else
7231 return g_strdup_printf ("%s (%s)", VERSION, FULL_VERSION);
7232 }
7233
7234 static void
7235 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
7236 {
7237 GHashTable *assemblies = (GHashTable*)user_data;
7238 MonoImage *image = mono_assembly_get_image (ass);
7239 MonoMethod *method, *invoke;
7240 int i, count = 0;
7241
7242 if (g_hash_table_lookup (assemblies, ass))
7243 return;
7244
7245 g_hash_table_insert (assemblies, ass, ass);
7246
7247 if (mini_verbose > 0)
7248 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
7249
7250 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
7251 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
7252 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
7253 continue;
7254
7255 count++;
7256 if (mini_verbose > 1) {
7257 char * desc = mono_method_full_name (method, TRUE);
7258 g_print ("Compiling %d %s\n", count, desc);
7259 g_free (desc);
7260 }
7261 mono_compile_method (method);
7262 if (strcmp (method->name, "Finalize") == 0) {
7263 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
7264 mono_compile_method (invoke);
7265 }
7266 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
7267 invoke = mono_marshal_get_remoting_invoke_with_check (method);
7268 mono_compile_method (invoke);
7269 }
7270 }
7271
7272 /* Load and precompile referenced assemblies as well */
7273 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
7274 mono_assembly_load_reference (image, i);
7275 if (image->references [i])
7276 mono_precompile_assembly (image->references [i], assemblies);
7277 }
7278 }
7279
7280 void mono_precompile_assemblies ()
7281 {
7282 GHashTable *assemblies = g_hash_table_new (NULL, NULL);
7283
7284 mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
7285
7286 g_hash_table_destroy (assemblies);
7287 }
7288
7289 #ifndef DISABLE_JIT
7290
7291 void*
7292 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) {
7293 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
7294 }
7295
7296 void
7297 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
7298 {
7299 TryBlockHole *hole = mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
7300 hole->clause = clause;
7301 hole->start_offset = start - cfg->native_code;
7302 hole->basic_block = bb;
7303
7304 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
7305 }
7306
7307 void
7308 mono_cfg_set_exception (MonoCompile *cfg, int type)
7309 {
7310 cfg->exception_type = type;
7311 }
7312
7313 #endif
7314
7315 /* Dummy versions of some arch specific functions to avoid ifdefs at call sites */
7316
7317 #ifndef MONO_ARCH_GSHAREDVT_SUPPORTED
7318
7319 gboolean
7320 mono_arch_gsharedvt_sig_supported (MonoMethodSignature *sig)
7321 {
7322 return FALSE;
7323 }
7324
7325 gpointer
7326 mono_arch_get_gsharedvt_call_info (gpointer addr, MonoMethod *normal_method, MonoMethod *gsharedvt_method, MonoGenericSharingContext *gsctx, gboolean gsharedvt_in, gboolean virtual)
7327 {
7328 g_assert_not_reached ();
7329 return NULL;
7330 }
7331
7332 gpointer
7333 mono_arch_get_gsharedvt_arg_trampoline (MonoDomain *domain, gpointer arg, gpointer addr)
7334 {
7335 g_assert_not_reached ();
7336 return NULL;
7337 }
7338
7339 gpointer
7340 mono_arch_get_gsharedvt_trampoline (MonoTrampInfo **info, gboolean aot)
7341 {
7342 g_assert_not_reached ();
7343 return NULL;
7344 }
7345
7346 #endif
7347
7348 #ifdef DISABLE_JIT
7349
7350 gpointer
7351 mono_arch_get_gsharedvt_arg_trampoline (MonoDomain *domain, gpointer arg, gpointer addr)
7352 {
7353 g_assert_not_reached ();
7354 return NULL;
7355 }
7356
7357 gpointer
7358 mono_arch_get_gsharedvt_trampoline (MonoTrampInfo **info, gboolean aot)
7359 {
7360 g_assert_not_reached ();
7361 return NULL;
7362 }
7363
7364 #endif
7365
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