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Merge pull request #444 from knocte/xbuild_improvements
[mono-project.git] / mono / mini / mini.c
blob6c7744b94cf5fe6659e2734bc45d116dcb777196
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
371 ji = mini_jit_info_table_find (domain, ip, &target_domain);
372 if (!ji) {
373 user_data.ip = ip;
374 user_data.method = NULL;
375 mono_domain_lock (domain);
376 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
377 mono_domain_unlock (domain);
378 if (user_data.method) {
379 char *mname = mono_method_full_name (user_data.method, TRUE);
380 printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
381 g_free (mname);
382 }
383 else
384 g_print ("No method at %p\n", ip);
385 fflush (stdout);
386 return;
387 }
388 method = mono_method_full_name (ji->method, TRUE);
389 source = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), target_domain);
390
391 g_print ("IP %p at offset 0x%x of method %s (%p %p)[domain %p - %s]\n", ip, (int)((char*)ip - (char*)ji->code_start), method, ji->code_start, (char*)ji->code_start + ji->code_size, target_domain, target_domain->friendly_name);
392
393 if (source)
394 g_print ("%s:%d\n", source->source_file, source->row);
395 fflush (stdout);
396
397 mono_debug_free_source_location (source);
398 g_free (method);
399 }
400
401 /*
402 * mono_method_same_domain:
403 *
404 * Determine whenever two compiled methods are in the same domain, thus
405 * the address of the callee can be embedded in the caller.
406 */
407 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
408 {
409 if (!caller || !callee)
410 return FALSE;
411
412 /*
413 * If the call was made from domain-neutral to domain-specific
414 * code, we can't patch the call site.
415 */
416 if (caller->domain_neutral && !callee->domain_neutral)
417 return FALSE;
418
419 if ((caller->method->klass == mono_defaults.appdomain_class) &&
420 (strstr (caller->method->name, "InvokeInDomain"))) {
421 /* The InvokeInDomain methods change the current appdomain */
422 return FALSE;
423 }
424
425 return TRUE;
426 }
427
428 /*
429 * mono_global_codeman_reserve:
430 *
431 * Allocate code memory from the global code manager.
432 */
433 void *mono_global_codeman_reserve (int size)
434 {
435 void *ptr;
436
437 if (mono_aot_only)
438 g_error ("Attempting to allocate from the global code manager while running with --aot-only.\n");
439
440 if (!global_codeman) {
441 /* This can happen during startup */
442 global_codeman = mono_code_manager_new ();
443 return mono_code_manager_reserve (global_codeman, size);
444 }
445 else {
446 mono_jit_lock ();
447 ptr = mono_code_manager_reserve (global_codeman, size);
448 mono_jit_unlock ();
449 return ptr;
450 }
451 }
452
453 #if defined(__native_client_codegen__) && defined(__native_client__)
454 /* Given the temporary buffer (allocated by mono_global_codeman_reserve) into
455 * which we are generating code, return a pointer to the destination in the
456 * dynamic code segment into which the code will be copied when
457 * mono_global_codeman_commit is called.
458 * LOCKING: Acquires the jit lock.
459 */
460 void*
461 nacl_global_codeman_get_dest (void *data)
462 {
463 void *dest;
464 mono_jit_lock ();
465 dest = nacl_code_manager_get_code_dest (global_codeman, data);
466 mono_jit_unlock ();
467 return dest;
468 }
469
470 void
471 mono_global_codeman_commit (void *data, int size, int newsize)
472 {
473 mono_jit_lock ();
474 mono_code_manager_commit (global_codeman, data, size, newsize);
475 mono_jit_unlock ();
476 }
477
478 /*
479 * Convenience function which calls mono_global_codeman_commit to validate and
480 * copy the code. The caller sets *buf_base and *buf_size to the start and size
481 * of the buffer (allocated by mono_global_codeman_reserve), and *code_end to
482 * the byte after the last instruction byte. On return, *buf_base will point to
483 * the start of the copied in the code segment, and *code_end will point after
484 * the end of the copied code.
485 */
486 void
487 nacl_global_codeman_validate (guint8 **buf_base, int buf_size, guint8 **code_end)
488 {
489 guint8 *tmp = nacl_global_codeman_get_dest (*buf_base);
490 mono_global_codeman_commit (*buf_base, buf_size, *code_end - *buf_base);
491 *code_end = tmp + (*code_end - *buf_base);
492 *buf_base = tmp;
493 }
494 #else
495 /* no-op versions of Native Client functions */
496 void*
497 nacl_global_codeman_get_dest (void *data)
498 {
499 return data;
500 }
501
502 void
503 mono_global_codeman_commit (void *data, int size, int newsize)
504 {
505 }
506
507 void
508 nacl_global_codeman_validate (guint8 **buf_base, int buf_size, guint8 **code_end)
509 {
510 }
511
512 #endif /* __native_client__ */
513
514 /**
515 * mono_create_unwind_op:
516 *
517 * Create an unwind op with the given parameters.
518 */
519 MonoUnwindOp*
520 mono_create_unwind_op (int when, int tag, int reg, int val)
521 {
522 MonoUnwindOp *op = g_new0 (MonoUnwindOp, 1);
523
524 op->op = tag;
525 op->reg = reg;
526 op->val = val;
527 op->when = when;
528
529 return op;
530 }
531
532 /**
533 * mono_emit_unwind_op:
534 *
535 * Add an unwind op with the given parameters for the list of unwind ops stored in
536 * cfg->unwind_ops.
537 */
538 void
539 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
540 {
541 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
542
543 op->op = tag;
544 op->reg = reg;
545 op->val = val;
546 op->when = when;
547
548 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
549 }
550
551 MonoJumpInfoToken *
552 mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context)
553 {
554 MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
555 res->image = image;
556 res->token = token;
557 res->has_context = context != NULL;
558 if (context)
559 memcpy (&res->context, context, sizeof (MonoGenericContext));
560
561 return res;
562 }
563
564 MonoJumpInfoToken *
565 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
566 {
567 return mono_jump_info_token_new2 (mp, image, token, NULL);
568 }
569
570 /*
571 * mono_tramp_info_create:
572 *
573 * Create a MonoTrampInfo structure from the arguments. This function assumes ownership
574 * of NAME, JI, and UNWIND_OPS.
575 */
576 MonoTrampInfo*
577 mono_tramp_info_create (const char *name, guint8 *code, guint32 code_size, MonoJumpInfo *ji, GSList *unwind_ops)
578 {
579 MonoTrampInfo *info = g_new0 (MonoTrampInfo, 1);
580
581 info->name = (char*)name;
582 info->code = code;
583 info->code_size = code_size;
584 info->ji = ji;
585 info->unwind_ops = unwind_ops;
586
587 return info;
588 }
589
590 void
591 mono_tramp_info_free (MonoTrampInfo *info)
592 {
593 GSList *l;
594
595 g_free (info->name);
596
597 // FIXME: ji
598 for (l = info->unwind_ops; l; l = l->next)
599 g_free (l->data);
600 g_slist_free (info->unwind_ops);
601 g_free (info);
602 }
603
604 G_GNUC_UNUSED static void
605 break_count (void)
606 {
607 }
608
609 /*
610 * Runtime debugging tool, use if (debug_count ()) <x> else <y> to do <x> the first COUNT times, then do <y> afterwards.
611 * Set a breakpoint in break_count () to break the last time <x> is done.
612 */
613 G_GNUC_UNUSED gboolean
614 mono_debug_count (void)
615 {
616 static int count = 0;
617 count ++;
618
619 if (!getenv ("COUNT"))
620 return TRUE;
621
622 if (count == atoi (getenv ("COUNT"))) {
623 break_count ();
624 }
625
626 if (count > atoi (getenv ("COUNT"))) {
627 return FALSE;
628 }
629
630 return TRUE;
631 }
632
633 #define MONO_INIT_VARINFO(vi,id) do { \
634 (vi)->range.first_use.pos.bid = 0xffff; \
635 (vi)->reg = -1; \
636 (vi)->idx = (id); \
637 } while (0)
638
639 /**
640 * mono_unlink_bblock:
641 *
642 * Unlink two basic blocks.
643 */
644 void
645 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
646 {
647 int i, pos;
648 gboolean found;
649
650 found = FALSE;
651 for (i = 0; i < from->out_count; ++i) {
652 if (to == from->out_bb [i]) {
653 found = TRUE;
654 break;
655 }
656 }
657 if (found) {
658 pos = 0;
659 for (i = 0; i < from->out_count; ++i) {
660 if (from->out_bb [i] != to)
661 from->out_bb [pos ++] = from->out_bb [i];
662 }
663 g_assert (pos == from->out_count - 1);
664 from->out_count--;
665 }
666
667 found = FALSE;
668 for (i = 0; i < to->in_count; ++i) {
669 if (from == to->in_bb [i]) {
670 found = TRUE;
671 break;
672 }
673 }
674 if (found) {
675 pos = 0;
676 for (i = 0; i < to->in_count; ++i) {
677 if (to->in_bb [i] != from)
678 to->in_bb [pos ++] = to->in_bb [i];
679 }
680 g_assert (pos == to->in_count - 1);
681 to->in_count--;
682 }
683 }
684
685 /*
686 * mono_bblocks_linked:
687 *
688 * Return whenever BB1 and BB2 are linked in the CFG.
689 */
690 gboolean
691 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
692 {
693 int i;
694
695 for (i = 0; i < bb1->out_count; ++i) {
696 if (bb1->out_bb [i] == bb2)
697 return TRUE;
698 }
699
700 return FALSE;
701 }
702
703 static int
704 mono_find_block_region_notry (MonoCompile *cfg, int offset)
705 {
706 MonoMethodHeader *header = cfg->header;
707 MonoExceptionClause *clause;
708 int i;
709
710 for (i = 0; i < header->num_clauses; ++i) {
711 clause = &header->clauses [i];
712 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
713 (offset < (clause->handler_offset)))
714 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
715
716 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
717 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
718 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
719 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
720 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
721 else
722 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
723 }
724 }
725
726 return -1;
727 }
728
729 /*
730 * mono_get_block_region_notry:
731 *
732 * Return the region corresponding to REGION, ignoring try clauses nested inside
733 * finally clauses.
734 */
735 int
736 mono_get_block_region_notry (MonoCompile *cfg, int region)
737 {
738 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
739 MonoMethodHeader *header = cfg->header;
740
741 /*
742 * This can happen if a try clause is nested inside a finally clause.
743 */
744 int clause_index = (region >> 8) - 1;
745 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
746
747 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
748 }
749
750 return region;
751 }
752
753 MonoInst *
754 mono_find_spvar_for_region (MonoCompile *cfg, int region)
755 {
756 region = mono_get_block_region_notry (cfg, region);
757
758 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
759 }
760
761 static void
762 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
763 {
764 int i;
765
766 array [*dfn] = start;
767 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
768 for (i = 0; i < start->out_count; ++i) {
769 if (start->out_bb [i]->dfn)
770 continue;
771 (*dfn)++;
772 start->out_bb [i]->dfn = *dfn;
773 start->out_bb [i]->df_parent = start;
774 array [*dfn] = start->out_bb [i];
775 df_visit (start->out_bb [i], dfn, array);
776 }
777 }
778
779 guint32
780 mono_reverse_branch_op (guint32 opcode)
781 {
782 static const int reverse_map [] = {
783 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
784 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
785 };
786 static const int reverse_fmap [] = {
787 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
788 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
789 };
790 static const int reverse_lmap [] = {
791 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
792 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
793 };
794 static const int reverse_imap [] = {
795 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
796 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
797 };
798
799 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
800 opcode = reverse_map [opcode - CEE_BEQ];
801 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
802 opcode = reverse_fmap [opcode - OP_FBEQ];
803 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
804 opcode = reverse_lmap [opcode - OP_LBEQ];
805 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
806 opcode = reverse_imap [opcode - OP_IBEQ];
807 } else
808 g_assert_not_reached ();
809
810 return opcode;
811 }
812
813 guint
814 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
815 {
816 if (type->byref)
817 return OP_STORE_MEMBASE_REG;
818
819 handle_enum:
820 switch (type->type) {
821 case MONO_TYPE_I1:
822 case MONO_TYPE_U1:
823 case MONO_TYPE_BOOLEAN:
824 return OP_STOREI1_MEMBASE_REG;
825 case MONO_TYPE_I2:
826 case MONO_TYPE_U2:
827 case MONO_TYPE_CHAR:
828 return OP_STOREI2_MEMBASE_REG;
829 case MONO_TYPE_I4:
830 case MONO_TYPE_U4:
831 return OP_STOREI4_MEMBASE_REG;
832 case MONO_TYPE_I:
833 case MONO_TYPE_U:
834 case MONO_TYPE_PTR:
835 case MONO_TYPE_FNPTR:
836 return OP_STORE_MEMBASE_REG;
837 case MONO_TYPE_CLASS:
838 case MONO_TYPE_STRING:
839 case MONO_TYPE_OBJECT:
840 case MONO_TYPE_SZARRAY:
841 case MONO_TYPE_ARRAY:
842 return OP_STORE_MEMBASE_REG;
843 case MONO_TYPE_I8:
844 case MONO_TYPE_U8:
845 return OP_STOREI8_MEMBASE_REG;
846 case MONO_TYPE_R4:
847 return OP_STORER4_MEMBASE_REG;
848 case MONO_TYPE_R8:
849 return OP_STORER8_MEMBASE_REG;
850 case MONO_TYPE_VALUETYPE:
851 if (type->data.klass->enumtype) {
852 type = mono_class_enum_basetype (type->data.klass);
853 goto handle_enum;
854 }
855 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
856 return OP_STOREX_MEMBASE;
857 return OP_STOREV_MEMBASE;
858 case MONO_TYPE_TYPEDBYREF:
859 return OP_STOREV_MEMBASE;
860 case MONO_TYPE_GENERICINST:
861 type = &type->data.generic_class->container_class->byval_arg;
862 goto handle_enum;
863 case MONO_TYPE_VAR:
864 case MONO_TYPE_MVAR:
865 /* FIXME: all the arguments must be references for now,
866 * later look inside cfg and see if the arg num is
867 * really a reference
868 */
869 g_assert (cfg->generic_sharing_context);
870 return OP_STORE_MEMBASE_REG;
871 default:
872 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
873 }
874 return -1;
875 }
876
877 guint
878 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
879 {
880 if (type->byref)
881 return OP_LOAD_MEMBASE;
882
883 type = mono_type_get_underlying_type (type);
884
885 switch (type->type) {
886 case MONO_TYPE_I1:
887 return OP_LOADI1_MEMBASE;
888 case MONO_TYPE_U1:
889 case MONO_TYPE_BOOLEAN:
890 return OP_LOADU1_MEMBASE;
891 case MONO_TYPE_I2:
892 return OP_LOADI2_MEMBASE;
893 case MONO_TYPE_U2:
894 case MONO_TYPE_CHAR:
895 return OP_LOADU2_MEMBASE;
896 case MONO_TYPE_I4:
897 return OP_LOADI4_MEMBASE;
898 case MONO_TYPE_U4:
899 return OP_LOADU4_MEMBASE;
900 case MONO_TYPE_I:
901 case MONO_TYPE_U:
902 case MONO_TYPE_PTR:
903 case MONO_TYPE_FNPTR:
904 return OP_LOAD_MEMBASE;
905 case MONO_TYPE_CLASS:
906 case MONO_TYPE_STRING:
907 case MONO_TYPE_OBJECT:
908 case MONO_TYPE_SZARRAY:
909 case MONO_TYPE_ARRAY:
910 return OP_LOAD_MEMBASE;
911 case MONO_TYPE_I8:
912 case MONO_TYPE_U8:
913 return OP_LOADI8_MEMBASE;
914 case MONO_TYPE_R4:
915 return OP_LOADR4_MEMBASE;
916 case MONO_TYPE_R8:
917 return OP_LOADR8_MEMBASE;
918 case MONO_TYPE_VALUETYPE:
919 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
920 return OP_LOADX_MEMBASE;
921 case MONO_TYPE_TYPEDBYREF:
922 return OP_LOADV_MEMBASE;
923 case MONO_TYPE_GENERICINST:
924 if (mono_type_generic_inst_is_valuetype (type))
925 return OP_LOADV_MEMBASE;
926 else
927 return OP_LOAD_MEMBASE;
928 break;
929 case MONO_TYPE_VAR:
930 case MONO_TYPE_MVAR:
931 /* FIXME: all the arguments must be references for now,
932 * later look inside cfg and see if the arg num is
933 * really a reference
934 */
935 g_assert (cfg->generic_sharing_context);
936 return OP_LOAD_MEMBASE;
937 default:
938 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
939 }
940 return -1;
941 }
942
943 static guint
944 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
945 {
946 if (cfg->generic_sharing_context && !type->byref) {
947 /* FIXME: all the arguments must be references for now,
948 * later look inside cfg and see if the arg num is
949 * really a reference
950 */
951 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
952 return CEE_LDIND_REF;
953 }
954 return mono_type_to_ldind (type);
955 }
956
957 guint
958 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
959 {
960 if (cfg->generic_sharing_context && !type->byref) {
961 /* FIXME: all the arguments must be references for now,
962 * later look inside cfg and see if the arg num is
963 * really a reference
964 */
965 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
966 return CEE_STIND_REF;
967 }
968 return mono_type_to_stind (type);
969 }
970
971 int
972 mono_op_imm_to_op (int opcode)
973 {
974 switch (opcode) {
975 case OP_ADD_IMM:
976 #if SIZEOF_REGISTER == 4
977 return OP_IADD;
978 #else
979 return OP_LADD;
980 #endif
981 case OP_IADD_IMM:
982 return OP_IADD;
983 case OP_LADD_IMM:
984 return OP_LADD;
985 case OP_ISUB_IMM:
986 return OP_ISUB;
987 case OP_LSUB_IMM:
988 return OP_LSUB;
989 case OP_IMUL_IMM:
990 return OP_IMUL;
991 case OP_AND_IMM:
992 #if SIZEOF_REGISTER == 4
993 return OP_IAND;
994 #else
995 return OP_LAND;
996 #endif
997 case OP_OR_IMM:
998 #if SIZEOF_REGISTER == 4
999 return OP_IOR;
1000 #else
1001 return OP_LOR;
1002 #endif
1003 case OP_XOR_IMM:
1004 #if SIZEOF_REGISTER == 4
1005 return OP_IXOR;
1006 #else
1007 return OP_LXOR;
1008 #endif
1009 case OP_IAND_IMM:
1010 return OP_IAND;
1011 case OP_LAND_IMM:
1012 return OP_LAND;
1013 case OP_IOR_IMM:
1014 return OP_IOR;
1015 case OP_LOR_IMM:
1016 return OP_LOR;
1017 case OP_IXOR_IMM:
1018 return OP_IXOR;
1019 case OP_LXOR_IMM:
1020 return OP_LXOR;
1021 case OP_ISHL_IMM:
1022 return OP_ISHL;
1023 case OP_LSHL_IMM:
1024 return OP_LSHL;
1025 case OP_ISHR_IMM:
1026 return OP_ISHR;
1027 case OP_LSHR_IMM:
1028 return OP_LSHR;
1029 case OP_ISHR_UN_IMM:
1030 return OP_ISHR_UN;
1031 case OP_LSHR_UN_IMM:
1032 return OP_LSHR_UN;
1033 case OP_IDIV_IMM:
1034 return OP_IDIV;
1035 case OP_IDIV_UN_IMM:
1036 return OP_IDIV_UN;
1037 case OP_IREM_UN_IMM:
1038 return OP_IREM_UN;
1039 case OP_IREM_IMM:
1040 return OP_IREM;
1041 case OP_DIV_IMM:
1042 #if SIZEOF_REGISTER == 4
1043 return OP_IDIV;
1044 #else
1045 return OP_LDIV;
1046 #endif
1047 case OP_REM_IMM:
1048 #if SIZEOF_REGISTER == 4
1049 return OP_IREM;
1050 #else
1051 return OP_LREM;
1052 #endif
1053 case OP_ADDCC_IMM:
1054 return OP_ADDCC;
1055 case OP_ADC_IMM:
1056 return OP_ADC;
1057 case OP_SUBCC_IMM:
1058 return OP_SUBCC;
1059 case OP_SBB_IMM:
1060 return OP_SBB;
1061 case OP_IADC_IMM:
1062 return OP_IADC;
1063 case OP_ISBB_IMM:
1064 return OP_ISBB;
1065 case OP_COMPARE_IMM:
1066 return OP_COMPARE;
1067 case OP_ICOMPARE_IMM:
1068 return OP_ICOMPARE;
1069 case OP_LOCALLOC_IMM:
1070 return OP_LOCALLOC;
1071 default:
1072 printf ("%s\n", mono_inst_name (opcode));
1073 g_assert_not_reached ();
1074 return -1;
1075 }
1076 }
1077
1078 /*
1079 * mono_decompose_op_imm:
1080 *
1081 * Replace the OP_.._IMM INS with its non IMM variant.
1082 */
1083 void
1084 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
1085 {
1086 MonoInst *temp;
1087
1088 MONO_INST_NEW (cfg, temp, OP_ICONST);
1089 temp->inst_c0 = ins->inst_imm;
1090 temp->dreg = mono_alloc_ireg (cfg);
1091 mono_bblock_insert_before_ins (bb, ins, temp);
1092 ins->opcode = mono_op_imm_to_op (ins->opcode);
1093 if (ins->opcode == OP_LOCALLOC)
1094 ins->sreg1 = temp->dreg;
1095 else
1096 ins->sreg2 = temp->dreg;
1097
1098 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
1099 }
1100
1101 static void
1102 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
1103 {
1104 if (vreg >= cfg->vreg_to_inst_len) {
1105 MonoInst **tmp = cfg->vreg_to_inst;
1106 int size = cfg->vreg_to_inst_len;
1107
1108 while (vreg >= cfg->vreg_to_inst_len)
1109 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
1110 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
1111 if (size)
1112 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
1113 }
1114 cfg->vreg_to_inst [vreg] = inst;
1115 }
1116
1117 #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)))
1118 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
1119
1120 #ifdef DISABLE_JIT
1121
1122 MonoInst*
1123 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1124 {
1125 return NULL;
1126 }
1127
1128 #else
1129
1130 MonoInst*
1131 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
1132 {
1133 MonoInst *inst;
1134 int num = cfg->num_varinfo;
1135 gboolean regpair;
1136
1137 if ((num + 1) >= cfg->varinfo_count) {
1138 int orig_count = cfg->varinfo_count;
1139 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 64;
1140 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
1141 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
1142 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
1143 }
1144
1145 cfg->stat_allocate_var++;
1146
1147 MONO_INST_NEW (cfg, inst, opcode);
1148 inst->inst_c0 = num;
1149 inst->inst_vtype = type;
1150 inst->klass = mono_class_from_mono_type (type);
1151 type_to_eval_stack_type (cfg, type, inst);
1152 /* if set to 1 the variable is native */
1153 inst->backend.is_pinvoke = 0;
1154 inst->dreg = vreg;
1155
1156 if (cfg->compute_gc_maps) {
1157 if (type->byref) {
1158 mono_mark_vreg_as_mp (cfg, vreg);
1159 } else {
1160 MonoType *t = mini_type_get_underlying_type (NULL, type);
1161 if ((MONO_TYPE_ISSTRUCT (t) && inst->klass->has_references) || mini_type_is_reference (cfg, t)) {
1162 inst->flags |= MONO_INST_GC_TRACK;
1163 mono_mark_vreg_as_ref (cfg, vreg);
1164 }
1165 }
1166 }
1167
1168 cfg->varinfo [num] = inst;
1169
1170 MONO_INIT_VARINFO (&cfg->vars [num], num);
1171 MONO_VARINFO (cfg, num)->vreg = vreg;
1172
1173 if (vreg != -1)
1174 set_vreg_to_inst (cfg, vreg, inst);
1175
1176 #if SIZEOF_REGISTER == 4
1177 #ifdef MONO_ARCH_SOFT_FLOAT
1178 regpair = mono_type_is_long (type) || mono_type_is_float (type);
1179 #else
1180 regpair = mono_type_is_long (type);
1181 #endif
1182 #else
1183 regpair = FALSE;
1184 #endif
1185
1186 if (regpair) {
1187 MonoInst *tree;
1188
1189 /*
1190 * These two cannot be allocated using create_var_for_vreg since that would
1191 * put it into the cfg->varinfo array, confusing many parts of the JIT.
1192 */
1193
1194 /*
1195 * Set flags to VOLATILE so SSA skips it.
1196 */
1197
1198 if (cfg->verbose_level >= 4) {
1199 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
1200 }
1201
1202 #ifdef MONO_ARCH_SOFT_FLOAT
1203 if (cfg->opt & MONO_OPT_SSA) {
1204 if (mono_type_is_float (type))
1205 inst->flags = MONO_INST_VOLATILE;
1206 }
1207 #endif
1208
1209 /* Allocate a dummy MonoInst for the first vreg */
1210 MONO_INST_NEW (cfg, tree, OP_LOCAL);
1211 tree->dreg = inst->dreg + 1;
1212 if (cfg->opt & MONO_OPT_SSA)
1213 tree->flags = MONO_INST_VOLATILE;
1214 tree->inst_c0 = num;
1215 tree->type = STACK_I4;
1216 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
1217 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
1218
1219 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
1220
1221 /* Allocate a dummy MonoInst for the second vreg */
1222 MONO_INST_NEW (cfg, tree, OP_LOCAL);
1223 tree->dreg = inst->dreg + 2;
1224 if (cfg->opt & MONO_OPT_SSA)
1225 tree->flags = MONO_INST_VOLATILE;
1226 tree->inst_c0 = num;
1227 tree->type = STACK_I4;
1228 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
1229 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
1230
1231 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
1232 }
1233
1234 cfg->num_varinfo++;
1235 if (cfg->verbose_level > 2)
1236 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
1237 return inst;
1238 }
1239
1240 MonoInst*
1241 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1242 {
1243 int dreg;
1244
1245 if (mono_type_is_long (type))
1246 dreg = mono_alloc_dreg (cfg, STACK_I8);
1247 #ifdef MONO_ARCH_SOFT_FLOAT
1248 else if (mono_type_is_float (type))
1249 dreg = mono_alloc_dreg (cfg, STACK_R8);
1250 #endif
1251 else
1252 /* All the others are unified */
1253 dreg = mono_alloc_preg (cfg);
1254
1255 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
1256 }
1257
1258 /*
1259 * Transform a MonoInst into a load from the variable of index var_index.
1260 */
1261 void
1262 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
1263 memset (dest, 0, sizeof (MonoInst));
1264 dest->inst_i0 = cfg->varinfo [var_index];
1265 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
1266 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
1267 dest->klass = dest->inst_i0->klass;
1268 }
1269
1270 #endif
1271
1272 void
1273 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
1274 {
1275 if (vreg >= cfg->vreg_is_ref_len) {
1276 gboolean *tmp = cfg->vreg_is_ref;
1277 int size = cfg->vreg_is_ref_len;
1278
1279 while (vreg >= cfg->vreg_is_ref_len)
1280 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
1281 cfg->vreg_is_ref = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
1282 if (size)
1283 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
1284 }
1285 cfg->vreg_is_ref [vreg] = TRUE;
1286 }
1287
1288 void
1289 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
1290 {
1291 if (vreg >= cfg->vreg_is_mp_len) {
1292 gboolean *tmp = cfg->vreg_is_mp;
1293 int size = cfg->vreg_is_mp_len;
1294
1295 while (vreg >= cfg->vreg_is_mp_len)
1296 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
1297 cfg->vreg_is_mp = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
1298 if (size)
1299 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
1300 }
1301 cfg->vreg_is_mp [vreg] = TRUE;
1302 }
1303
1304 static MonoType*
1305 type_from_stack_type (MonoInst *ins) {
1306 switch (ins->type) {
1307 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1308 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1309 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1310 case STACK_R8: return &mono_defaults.double_class->byval_arg;
1311 case STACK_MP:
1312 /*
1313 * this if used to be commented without any specific reason, but
1314 * it breaks #80235 when commented
1315 */
1316 if (ins->klass)
1317 return &ins->klass->this_arg;
1318 else
1319 return &mono_defaults.object_class->this_arg;
1320 case STACK_OBJ:
1321 /* ins->klass may not be set for ldnull.
1322 * Also, if we have a boxed valuetype, we want an object lass,
1323 * not the valuetype class
1324 */
1325 if (ins->klass && !ins->klass->valuetype)
1326 return &ins->klass->byval_arg;
1327 return &mono_defaults.object_class->byval_arg;
1328 case STACK_VTYPE: return &ins->klass->byval_arg;
1329 default:
1330 g_error ("stack type %d to montype not handled\n", ins->type);
1331 }
1332 return NULL;
1333 }
1334
1335 MonoType*
1336 mono_type_from_stack_type (MonoInst *ins) {
1337 return type_from_stack_type (ins);
1338 }
1339
1340 /*
1341 * mono_add_ins_to_end:
1342 *
1343 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
1344 */
1345 void
1346 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1347 {
1348 int opcode;
1349
1350 if (!bb->code) {
1351 MONO_ADD_INS (bb, inst);
1352 return;
1353 }
1354
1355 switch (bb->last_ins->opcode) {
1356 case OP_BR:
1357 case OP_BR_REG:
1358 case CEE_BEQ:
1359 case CEE_BGE:
1360 case CEE_BGT:
1361 case CEE_BLE:
1362 case CEE_BLT:
1363 case CEE_BNE_UN:
1364 case CEE_BGE_UN:
1365 case CEE_BGT_UN:
1366 case CEE_BLE_UN:
1367 case CEE_BLT_UN:
1368 case OP_SWITCH:
1369 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1370 break;
1371 default:
1372 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
1373 /* Need to insert the ins before the compare */
1374 if (bb->code == bb->last_ins) {
1375 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1376 return;
1377 }
1378
1379 if (bb->code->next == bb->last_ins) {
1380 /* Only two instructions */
1381 opcode = bb->code->opcode;
1382
1383 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)) {
1384 /* NEW IR */
1385 mono_bblock_insert_before_ins (bb, bb->code, inst);
1386 } else {
1387 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1388 }
1389 } else {
1390 opcode = bb->last_ins->prev->opcode;
1391
1392 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)) {
1393 /* NEW IR */
1394 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1395 } else {
1396 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1397 }
1398 }
1399 }
1400 else
1401 MONO_ADD_INS (bb, inst);
1402 break;
1403 }
1404 }
1405
1406 void
1407 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1408 {
1409 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1410 MonoJumpInfoBBTable *table;
1411
1412 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1413 table->table = bbs;
1414 table->table_size = num_blocks;
1415
1416 ji->ip.label = label;
1417 ji->type = MONO_PATCH_INFO_SWITCH;
1418 ji->data.table = table;
1419 ji->next = cfg->patch_info;
1420 cfg->patch_info = ji;
1421 }
1422
1423 static MonoMethodSignature *
1424 mono_get_array_new_va_signature (int arity)
1425 {
1426 static GHashTable *sighash = NULL;
1427 MonoMethodSignature *res;
1428 int i;
1429
1430 mono_jit_lock ();
1431 if (!sighash) {
1432 sighash = g_hash_table_new (NULL, NULL);
1433 }
1434 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1435 mono_jit_unlock ();
1436 return res;
1437 }
1438
1439 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1440
1441 res->pinvoke = 1;
1442 #ifdef MONO_ARCH_VARARG_ICALLS
1443 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1444 res->call_convention = MONO_CALL_VARARG;
1445 #endif
1446
1447 #ifdef TARGET_WIN32
1448 res->call_convention = MONO_CALL_C;
1449 #endif
1450
1451 res->params [0] = &mono_defaults.int_class->byval_arg;
1452 for (i = 0; i < arity; i++)
1453 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1454
1455 res->ret = &mono_defaults.object_class->byval_arg;
1456
1457 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1458 mono_jit_unlock ();
1459
1460 return res;
1461 }
1462
1463 MonoJitICallInfo *
1464 mono_get_array_new_va_icall (int rank)
1465 {
1466 MonoMethodSignature *esig;
1467 char icall_name [256];
1468 char *name;
1469 MonoJitICallInfo *info;
1470
1471 /* Need to register the icall so it gets an icall wrapper */
1472 sprintf (icall_name, "ves_array_new_va_%d", rank);
1473
1474 mono_jit_lock ();
1475 info = mono_find_jit_icall_by_name (icall_name);
1476 if (info == NULL) {
1477 esig = mono_get_array_new_va_signature (rank);
1478 name = g_strdup (icall_name);
1479 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1480
1481 g_hash_table_insert (jit_icall_name_hash, name, name);
1482 }
1483 mono_jit_unlock ();
1484
1485 return info;
1486 }
1487
1488 gboolean
1489 mini_class_is_system_array (MonoClass *klass)
1490 {
1491 if (klass->parent == mono_defaults.array_class)
1492 return TRUE;
1493 else
1494 return FALSE;
1495 }
1496
1497 gboolean
1498 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1499 {
1500 MonoAssembly *assembly = method->klass->image->assembly;
1501 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1502 return FALSE;
1503 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1504 return FALSE;
1505 if (mono_security_get_mode () != MONO_SECURITY_MODE_NONE)
1506 return FALSE;
1507 return mono_assembly_has_skip_verification (assembly);
1508 }
1509
1510 /*
1511 * mini_method_verify:
1512 *
1513 * Verify the method using the new verfier.
1514 *
1515 * Returns true if the method is invalid.
1516 */
1517 static gboolean
1518 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1519 {
1520 GSList *tmp, *res;
1521 gboolean is_fulltrust;
1522 MonoLoaderError *error;
1523
1524 if (method->verification_success)
1525 return FALSE;
1526
1527 if (!mono_verifier_is_enabled_for_method (method))
1528 return FALSE;
1529
1530 /*skip verification implies the assembly must be */
1531 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1532
1533 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1534
1535 if ((error = mono_loader_get_last_error ())) {
1536 if (fail_compile)
1537 cfg->exception_type = error->exception_type;
1538 else
1539 mono_loader_clear_error ();
1540 if (res)
1541 mono_free_verify_list (res);
1542 return TRUE;
1543 }
1544
1545 if (res) {
1546 for (tmp = res; tmp; tmp = tmp->next) {
1547 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1548 if (info->info.status == MONO_VERIFY_ERROR) {
1549 if (fail_compile) {
1550 char *method_name = mono_method_full_name (method, TRUE);
1551 cfg->exception_type = info->exception_type;
1552 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1553 g_free (method_name);
1554 }
1555 mono_free_verify_list (res);
1556 return TRUE;
1557 }
1558 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1559 if (fail_compile) {
1560 char *method_name = mono_method_full_name (method, TRUE);
1561 cfg->exception_type = info->exception_type;
1562 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1563 g_free (method_name);
1564 }
1565 mono_free_verify_list (res);
1566 return TRUE;
1567 }
1568 }
1569 mono_free_verify_list (res);
1570 }
1571 method->verification_success = 1;
1572 return FALSE;
1573 }
1574
1575 /*Returns true if something went wrong*/
1576 gboolean
1577 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1578 {
1579 MonoMethod *method_definition = method;
1580 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1581
1582 while (method_definition->is_inflated) {
1583 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1584 method_definition = imethod->declaring;
1585 }
1586
1587 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1588 }
1589
1590 static gconstpointer
1591 mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile)
1592 {
1593 char *name;
1594 MonoMethod *wrapper;
1595 gconstpointer trampoline;
1596 MonoDomain *domain = mono_get_root_domain ();
1597
1598 if (callinfo->wrapper) {
1599 return callinfo->wrapper;
1600 }
1601
1602 if (callinfo->trampoline)
1603 return callinfo->trampoline;
1604
1605 /*
1606 * We use the lock on the root domain instead of the JIT lock to protect
1607 * callinfo->trampoline, since we do a lot of stuff inside the critical section.
1608 */
1609 mono_loader_lock (); /*FIXME mono_compile_method requires the loader lock, by large.*/
1610 mono_domain_lock (domain);
1611
1612 if (callinfo->trampoline) {
1613 mono_domain_unlock (domain);
1614 mono_loader_unlock ();
1615 return callinfo->trampoline;
1616 }
1617
1618 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1619 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1620 g_free (name);
1621
1622 if (do_compile)
1623 trampoline = mono_compile_method (wrapper);
1624 else
1625 trampoline = mono_create_ftnptr (domain, mono_create_jit_trampoline_in_domain (domain, wrapper));
1626 mono_register_jit_icall_wrapper (callinfo, trampoline);
1627
1628 callinfo->trampoline = trampoline;
1629
1630 mono_domain_unlock (domain);
1631 mono_loader_unlock ();
1632
1633 return callinfo->trampoline;
1634 }
1635
1636 gconstpointer
1637 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
1638 {
1639 return mono_icall_get_wrapper_full (callinfo, FALSE);
1640 }
1641
1642 static void
1643 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1644 {
1645 if (!domain_jit_info (domain)->dynamic_code_hash)
1646 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1647 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1648 }
1649
1650 static MonoJitDynamicMethodInfo*
1651 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1652 {
1653 MonoJitDynamicMethodInfo *res;
1654
1655 if (domain_jit_info (domain)->dynamic_code_hash)
1656 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1657 else
1658 res = NULL;
1659 return res;
1660 }
1661
1662 typedef struct {
1663 MonoClass *vtype;
1664 GList *active, *inactive;
1665 GSList *slots;
1666 } StackSlotInfo;
1667
1668 static gint
1669 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1670 {
1671 MonoMethodVar *v1 = (MonoMethodVar*)a;
1672 MonoMethodVar *v2 = (MonoMethodVar*)b;
1673
1674 if (v1 == v2)
1675 return 0;
1676 else if (v1->interval->range && v2->interval->range)
1677 return v1->interval->range->from - v2->interval->range->from;
1678 else if (v1->interval->range)
1679 return -1;
1680 else
1681 return 1;
1682 }
1683
1684 #ifndef DISABLE_JIT
1685
1686 #if 0
1687 #define LSCAN_DEBUG(a) do { a; } while (0)
1688 #else
1689 #define LSCAN_DEBUG(a)
1690 #endif
1691
1692 static gint32*
1693 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1694 {
1695 int i, slot, offset, size;
1696 guint32 align;
1697 MonoMethodVar *vmv;
1698 MonoInst *inst;
1699 gint32 *offsets;
1700 GList *vars = NULL, *l, *unhandled;
1701 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1702 MonoType *t;
1703 int nvtypes;
1704 gboolean reuse_slot;
1705
1706 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1707
1708 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1709 vtype_stack_slots = NULL;
1710 nvtypes = 0;
1711
1712 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1713 for (i = 0; i < cfg->num_varinfo; ++i)
1714 offsets [i] = -1;
1715
1716 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1717 inst = cfg->varinfo [i];
1718 vmv = MONO_VARINFO (cfg, i);
1719
1720 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1721 continue;
1722
1723 vars = g_list_prepend (vars, vmv);
1724 }
1725
1726 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1727
1728 /* Sanity check */
1729 /*
1730 i = 0;
1731 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1732 MonoMethodVar *current = unhandled->data;
1733
1734 if (current->interval->range) {
1735 g_assert (current->interval->range->from >= i);
1736 i = current->interval->range->from;
1737 }
1738 }
1739 */
1740
1741 offset = 0;
1742 *stack_align = 0;
1743 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1744 MonoMethodVar *current = unhandled->data;
1745
1746 vmv = current;
1747 inst = cfg->varinfo [vmv->idx];
1748
1749 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1750 * pinvoke wrappers when they call functions returning structures */
1751 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1752 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1753 }
1754 else {
1755 int ialign;
1756
1757 size = mono_type_size (inst->inst_vtype, &ialign);
1758 align = ialign;
1759
1760 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (inst->inst_vtype)))
1761 align = 16;
1762 }
1763
1764 reuse_slot = TRUE;
1765 if (cfg->disable_reuse_stack_slots)
1766 reuse_slot = FALSE;
1767
1768 t = mono_type_get_underlying_type (inst->inst_vtype);
1769 switch (t->type) {
1770 case MONO_TYPE_GENERICINST:
1771 if (!mono_type_generic_inst_is_valuetype (t)) {
1772 slot_info = &scalar_stack_slots [t->type];
1773 break;
1774 }
1775 /* Fall through */
1776 case MONO_TYPE_VALUETYPE:
1777 if (!vtype_stack_slots)
1778 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1779 for (i = 0; i < nvtypes; ++i)
1780 if (t->data.klass == vtype_stack_slots [i].vtype)
1781 break;
1782 if (i < nvtypes)
1783 slot_info = &vtype_stack_slots [i];
1784 else {
1785 g_assert (nvtypes < 256);
1786 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1787 slot_info = &vtype_stack_slots [nvtypes];
1788 nvtypes ++;
1789 }
1790 if (cfg->disable_reuse_ref_stack_slots)
1791 reuse_slot = FALSE;
1792 break;
1793
1794 case MONO_TYPE_PTR:
1795 case MONO_TYPE_I:
1796 case MONO_TYPE_U:
1797 #if SIZEOF_VOID_P == 4
1798 case MONO_TYPE_I4:
1799 #else
1800 case MONO_TYPE_I8:
1801 #endif
1802 if (cfg->disable_ref_noref_stack_slot_share) {
1803 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1804 break;
1805 }
1806 /* Fall through */
1807
1808 case MONO_TYPE_CLASS:
1809 case MONO_TYPE_OBJECT:
1810 case MONO_TYPE_ARRAY:
1811 case MONO_TYPE_SZARRAY:
1812 case MONO_TYPE_STRING:
1813 /* Share non-float stack slots of the same size */
1814 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1815 if (cfg->disable_reuse_ref_stack_slots)
1816 reuse_slot = FALSE;
1817 break;
1818
1819 default:
1820 slot_info = &scalar_stack_slots [t->type];
1821 }
1822
1823 slot = 0xffffff;
1824 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1825 int pos;
1826 gboolean changed;
1827
1828 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1829
1830 if (!current->interval->range) {
1831 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1832 pos = ~0;
1833 else {
1834 /* Dead */
1835 inst->flags |= MONO_INST_IS_DEAD;
1836 continue;
1837 }
1838 }
1839 else
1840 pos = current->interval->range->from;
1841
1842 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1843 if (current->interval->range)
1844 LSCAN_DEBUG (mono_linterval_print (current->interval));
1845 LSCAN_DEBUG (printf ("\n"));
1846
1847 /* Check for intervals in active which expired or inactive */
1848 changed = TRUE;
1849 /* FIXME: Optimize this */
1850 while (changed) {
1851 changed = FALSE;
1852 for (l = slot_info->active; l != NULL; l = l->next) {
1853 MonoMethodVar *v = (MonoMethodVar*)l->data;
1854
1855 if (v->interval->last_range->to < pos) {
1856 slot_info->active = g_list_delete_link (slot_info->active, l);
1857 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1858 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1859 changed = TRUE;
1860 break;
1861 }
1862 else if (!mono_linterval_covers (v->interval, pos)) {
1863 slot_info->inactive = g_list_append (slot_info->inactive, v);
1864 slot_info->active = g_list_delete_link (slot_info->active, l);
1865 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1866 changed = TRUE;
1867 break;
1868 }
1869 }
1870 }
1871
1872 /* Check for intervals in inactive which expired or active */
1873 changed = TRUE;
1874 /* FIXME: Optimize this */
1875 while (changed) {
1876 changed = FALSE;
1877 for (l = slot_info->inactive; l != NULL; l = l->next) {
1878 MonoMethodVar *v = (MonoMethodVar*)l->data;
1879
1880 if (v->interval->last_range->to < pos) {
1881 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1882 // FIXME: Enabling this seems to cause impossible to debug crashes
1883 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1884 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1885 changed = TRUE;
1886 break;
1887 }
1888 else if (mono_linterval_covers (v->interval, pos)) {
1889 slot_info->active = g_list_append (slot_info->active, v);
1890 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1891 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1892 changed = TRUE;
1893 break;
1894 }
1895 }
1896 }
1897
1898 /*
1899 * This also handles the case when the variable is used in an
1900 * exception region, as liveness info is not computed there.
1901 */
1902 /*
1903 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1904 * opcodes.
1905 */
1906 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1907 if (slot_info->slots) {
1908 slot = GPOINTER_TO_INT (slot_info->slots->data);
1909
1910 slot_info->slots = slot_info->slots->next;
1911 }
1912
1913 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1914
1915 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1916 }
1917 }
1918
1919 #if 0
1920 {
1921 static int count = 0;
1922 count ++;
1923
1924 if (count == atoi (getenv ("COUNT3")))
1925 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1926 if (count > atoi (getenv ("COUNT3")))
1927 slot = 0xffffff;
1928 else {
1929 mono_print_ins (inst);
1930 }
1931 }
1932 #endif
1933
1934 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1935
1936 if (inst->flags & MONO_INST_LMF) {
1937 size = sizeof (MonoLMF);
1938 align = sizeof (mgreg_t);
1939 reuse_slot = FALSE;
1940 }
1941
1942 if (!reuse_slot)
1943 slot = 0xffffff;
1944
1945 if (slot == 0xffffff) {
1946 /*
1947 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1948 * efficient copying (and to work around the fact that OP_MEMCPY
1949 * and OP_MEMSET ignores alignment).
1950 */
1951 if (MONO_TYPE_ISSTRUCT (t)) {
1952 align = MAX (align, sizeof (gpointer));
1953 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1954 }
1955
1956 if (backward) {
1957 offset += size;
1958 offset += align - 1;
1959 offset &= ~(align - 1);
1960 slot = offset;
1961 }
1962 else {
1963 offset += align - 1;
1964 offset &= ~(align - 1);
1965 slot = offset;
1966 offset += size;
1967 }
1968
1969 if (*stack_align == 0)
1970 *stack_align = align;
1971 }
1972
1973 offsets [vmv->idx] = slot;
1974 }
1975 g_list_free (vars);
1976 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1977 if (scalar_stack_slots [i].active)
1978 g_list_free (scalar_stack_slots [i].active);
1979 }
1980 for (i = 0; i < nvtypes; ++i) {
1981 if (vtype_stack_slots [i].active)
1982 g_list_free (vtype_stack_slots [i].active);
1983 }
1984
1985 cfg->stat_locals_stack_size += offset;
1986
1987 *stack_size = offset;
1988 return offsets;
1989 }
1990
1991 /*
1992 * mono_allocate_stack_slots:
1993 *
1994 * Allocate stack slots for all non register allocated variables using a
1995 * linear scan algorithm.
1996 * Returns: an array of stack offsets.
1997 * STACK_SIZE is set to the amount of stack space needed.
1998 * STACK_ALIGN is set to the alignment needed by the locals area.
1999 */
2000 gint32*
2001 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
2002 {
2003 int i, slot, offset, size;
2004 guint32 align;
2005 MonoMethodVar *vmv;
2006 MonoInst *inst;
2007 gint32 *offsets;
2008 GList *vars = NULL, *l;
2009 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
2010 MonoType *t;
2011 int nvtypes;
2012 gboolean reuse_slot;
2013
2014 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
2015 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
2016
2017 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
2018 vtype_stack_slots = NULL;
2019 nvtypes = 0;
2020
2021 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
2022 for (i = 0; i < cfg->num_varinfo; ++i)
2023 offsets [i] = -1;
2024
2025 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
2026 inst = cfg->varinfo [i];
2027 vmv = MONO_VARINFO (cfg, i);
2028
2029 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
2030 continue;
2031
2032 vars = g_list_prepend (vars, vmv);
2033 }
2034
2035 vars = mono_varlist_sort (cfg, vars, 0);
2036 offset = 0;
2037 *stack_align = sizeof(mgreg_t);
2038 for (l = vars; l; l = l->next) {
2039 vmv = l->data;
2040 inst = cfg->varinfo [vmv->idx];
2041
2042 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
2043 * pinvoke wrappers when they call functions returning structures */
2044 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
2045 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
2046 } else {
2047 int ialign;
2048
2049 size = mono_type_size (inst->inst_vtype, &ialign);
2050 align = ialign;
2051
2052 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (inst->inst_vtype)))
2053 align = 16;
2054 }
2055
2056 reuse_slot = TRUE;
2057 if (cfg->disable_reuse_stack_slots)
2058 reuse_slot = FALSE;
2059
2060 t = mono_type_get_underlying_type (inst->inst_vtype);
2061 if (t->byref) {
2062 slot_info = &scalar_stack_slots [MONO_TYPE_I];
2063 } else {
2064 switch (t->type) {
2065 case MONO_TYPE_GENERICINST:
2066 if (!mono_type_generic_inst_is_valuetype (t)) {
2067 slot_info = &scalar_stack_slots [t->type];
2068 break;
2069 }
2070 /* Fall through */
2071 case MONO_TYPE_VALUETYPE:
2072 if (!vtype_stack_slots)
2073 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
2074 for (i = 0; i < nvtypes; ++i)
2075 if (t->data.klass == vtype_stack_slots [i].vtype)
2076 break;
2077 if (i < nvtypes)
2078 slot_info = &vtype_stack_slots [i];
2079 else {
2080 g_assert (nvtypes < 256);
2081 vtype_stack_slots [nvtypes].vtype = t->data.klass;
2082 slot_info = &vtype_stack_slots [nvtypes];
2083 nvtypes ++;
2084 }
2085 if (cfg->disable_reuse_ref_stack_slots)
2086 reuse_slot = FALSE;
2087 break;
2088
2089 case MONO_TYPE_PTR:
2090 case MONO_TYPE_I:
2091 case MONO_TYPE_U:
2092 #if SIZEOF_VOID_P == 4
2093 case MONO_TYPE_I4:
2094 #else
2095 case MONO_TYPE_I8:
2096 #endif
2097 if (cfg->disable_ref_noref_stack_slot_share) {
2098 slot_info = &scalar_stack_slots [MONO_TYPE_I];
2099 break;
2100 }
2101 /* Fall through */
2102
2103 case MONO_TYPE_CLASS:
2104 case MONO_TYPE_OBJECT:
2105 case MONO_TYPE_ARRAY:
2106 case MONO_TYPE_SZARRAY:
2107 case MONO_TYPE_STRING:
2108 /* Share non-float stack slots of the same size */
2109 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
2110 if (cfg->disable_reuse_ref_stack_slots)
2111 reuse_slot = FALSE;
2112 break;
2113
2114 default:
2115 slot_info = &scalar_stack_slots [t->type];
2116 }
2117 }
2118
2119 slot = 0xffffff;
2120 if (cfg->comp_done & MONO_COMP_LIVENESS) {
2121 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
2122
2123 /* expire old intervals in active */
2124 while (slot_info->active) {
2125 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
2126
2127 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
2128 break;
2129
2130 //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);
2131
2132 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
2133 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
2134 }
2135
2136 /*
2137 * This also handles the case when the variable is used in an
2138 * exception region, as liveness info is not computed there.
2139 */
2140 /*
2141 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
2142 * opcodes.
2143 */
2144 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
2145 if (slot_info->slots) {
2146 slot = GPOINTER_TO_INT (slot_info->slots->data);
2147
2148 slot_info->slots = slot_info->slots->next;
2149 }
2150
2151 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
2152 }
2153 }
2154
2155 {
2156 static int count = 0;
2157 count ++;
2158
2159 /*
2160 if (count == atoi (getenv ("COUNT")))
2161 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
2162 if (count > atoi (getenv ("COUNT")))
2163 slot = 0xffffff;
2164 else {
2165 mono_print_ins (inst);
2166 }
2167 */
2168 }
2169
2170 if (inst->flags & MONO_INST_LMF) {
2171 /*
2172 * This variable represents a MonoLMF structure, which has no corresponding
2173 * CLR type, so hard-code its size/alignment.
2174 */
2175 size = sizeof (MonoLMF);
2176 align = sizeof (mgreg_t);
2177 reuse_slot = FALSE;
2178 }
2179
2180 if (!reuse_slot)
2181 slot = 0xffffff;
2182
2183 if (slot == 0xffffff) {
2184 /*
2185 * Allways allocate valuetypes to sizeof (gpointer) to allow more
2186 * efficient copying (and to work around the fact that OP_MEMCPY
2187 * and OP_MEMSET ignores alignment).
2188 */
2189 if (MONO_TYPE_ISSTRUCT (t)) {
2190 align = MAX (align, sizeof (gpointer));
2191 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
2192 /*
2193 * Align the size too so the code generated for passing vtypes in
2194 * registers doesn't overwrite random locals.
2195 */
2196 size = (size + (align - 1)) & ~(align -1);
2197 }
2198
2199 if (backward) {
2200 offset += size;
2201 offset += align - 1;
2202 offset &= ~(align - 1);
2203 slot = offset;
2204 }
2205 else {
2206 offset += align - 1;
2207 offset &= ~(align - 1);
2208 slot = offset;
2209 offset += size;
2210 }
2211
2212 *stack_align = MAX (*stack_align, align);
2213 }
2214
2215 offsets [vmv->idx] = slot;
2216 }
2217 g_list_free (vars);
2218 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
2219 if (scalar_stack_slots [i].active)
2220 g_list_free (scalar_stack_slots [i].active);
2221 }
2222 for (i = 0; i < nvtypes; ++i) {
2223 if (vtype_stack_slots [i].active)
2224 g_list_free (vtype_stack_slots [i].active);
2225 }
2226
2227 cfg->stat_locals_stack_size += offset;
2228
2229 *stack_size = offset;
2230 return offsets;
2231 }
2232
2233 #else
2234
2235 gint32*
2236 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
2237 {
2238 g_assert_not_reached ();
2239 return NULL;
2240 }
2241
2242 #endif /* DISABLE_JIT */
2243
2244 #define EMUL_HIT_SHIFT 3
2245 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
2246 /* small hit bitmap cache */
2247 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
2248 static short emul_opcode_num = 0;
2249 static short emul_opcode_alloced = 0;
2250 static short *emul_opcode_opcodes = NULL;
2251 static MonoJitICallInfo **emul_opcode_map = NULL;
2252
2253 MonoJitICallInfo *
2254 mono_find_jit_opcode_emulation (int opcode)
2255 {
2256 g_assert (opcode >= 0 && opcode <= OP_LAST);
2257 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
2258 int i;
2259 for (i = 0; i < emul_opcode_num; ++i) {
2260 if (emul_opcode_opcodes [i] == opcode)
2261 return emul_opcode_map [i];
2262 }
2263 }
2264 return NULL;
2265 }
2266
2267 void
2268 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
2269 {
2270 MonoJitICallInfo *info;
2271 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
2272
2273 g_assert (!sig->hasthis);
2274 g_assert (sig->param_count < 3);
2275
2276 info = mono_register_jit_icall (func, name, sig, no_throw);
2277
2278 if (emul_opcode_num >= emul_opcode_alloced) {
2279 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
2280 emul_opcode_alloced += incr;
2281 emul_opcode_map = g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
2282 emul_opcode_opcodes = g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
2283 }
2284 emul_opcode_map [emul_opcode_num] = info;
2285 emul_opcode_opcodes [emul_opcode_num] = opcode;
2286 emul_opcode_num++;
2287 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
2288 }
2289
2290 static void
2291 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
2292 {
2293 MonoMethodSignature *sig;
2294
2295 if (sigstr)
2296 sig = mono_create_icall_signature (sigstr);
2297 else
2298 sig = NULL;
2299
2300 mono_register_jit_icall (func, name, sig, save);
2301 }
2302
2303 static void
2304 print_dfn (MonoCompile *cfg) {
2305 int i, j;
2306 char *code;
2307 MonoBasicBlock *bb;
2308 MonoInst *c;
2309
2310 {
2311 char *method_name = mono_method_full_name (cfg->method, TRUE);
2312 g_print ("IR code for method %s\n", method_name);
2313 g_free (method_name);
2314 }
2315
2316 for (i = 0; i < cfg->num_bblocks; ++i) {
2317 bb = cfg->bblocks [i];
2318 /*if (bb->cil_code) {
2319 char* code1, *code2;
2320 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
2321 if (bb->last_ins->cil_code)
2322 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
2323 else
2324 code2 = g_strdup ("");
2325
2326 code1 [strlen (code1) - 1] = 0;
2327 code = g_strdup_printf ("%s -> %s", code1, code2);
2328 g_free (code1);
2329 g_free (code2);
2330 } else*/
2331 code = g_strdup ("\n");
2332 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
2333 MONO_BB_FOR_EACH_INS (bb, c) {
2334 mono_print_ins_index (-1, c);
2335 }
2336
2337 g_print ("\tprev:");
2338 for (j = 0; j < bb->in_count; ++j) {
2339 g_print (" BB%d", bb->in_bb [j]->block_num);
2340 }
2341 g_print ("\t\tsucc:");
2342 for (j = 0; j < bb->out_count; ++j) {
2343 g_print (" BB%d", bb->out_bb [j]->block_num);
2344 }
2345 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
2346
2347 if (bb->idom)
2348 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
2349
2350 if (bb->dominators)
2351 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
2352 if (bb->dfrontier)
2353 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
2354 g_free (code);
2355 }
2356
2357 g_print ("\n");
2358 }
2359
2360 void
2361 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
2362 {
2363 MONO_ADD_INS (bb, inst);
2364 }
2365
2366 void
2367 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2368 {
2369 if (ins == NULL) {
2370 ins = bb->code;
2371 bb->code = ins_to_insert;
2372
2373 /* Link with next */
2374 ins_to_insert->next = ins;
2375 if (ins)
2376 ins->prev = ins_to_insert;
2377
2378 if (bb->last_ins == NULL)
2379 bb->last_ins = ins_to_insert;
2380 } else {
2381 /* Link with next */
2382 ins_to_insert->next = ins->next;
2383 if (ins->next)
2384 ins->next->prev = ins_to_insert;
2385
2386 /* Link with previous */
2387 ins->next = ins_to_insert;
2388 ins_to_insert->prev = ins;
2389
2390 if (bb->last_ins == ins)
2391 bb->last_ins = ins_to_insert;
2392 }
2393 }
2394
2395 void
2396 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2397 {
2398 if (ins == NULL) {
2399 ins = bb->code;
2400 if (ins)
2401 ins->prev = ins_to_insert;
2402 bb->code = ins_to_insert;
2403 ins_to_insert->next = ins;
2404 if (bb->last_ins == NULL)
2405 bb->last_ins = ins_to_insert;
2406 } else {
2407 /* Link with previous */
2408 if (ins->prev)
2409 ins->prev->next = ins_to_insert;
2410 ins_to_insert->prev = ins->prev;
2411
2412 /* Link with next */
2413 ins->prev = ins_to_insert;
2414 ins_to_insert->next = ins;
2415
2416 if (bb->code == ins)
2417 bb->code = ins_to_insert;
2418 }
2419 }
2420
2421 /*
2422 * mono_verify_bblock:
2423 *
2424 * Verify that the next and prev pointers are consistent inside the instructions in BB.
2425 */
2426 void
2427 mono_verify_bblock (MonoBasicBlock *bb)
2428 {
2429 MonoInst *ins, *prev;
2430
2431 prev = NULL;
2432 for (ins = bb->code; ins; ins = ins->next) {
2433 g_assert (ins->prev == prev);
2434 prev = ins;
2435 }
2436 if (bb->last_ins)
2437 g_assert (!bb->last_ins->next);
2438 }
2439
2440 /*
2441 * mono_verify_cfg:
2442 *
2443 * Perform consistency checks on the JIT data structures and the IR
2444 */
2445 void
2446 mono_verify_cfg (MonoCompile *cfg)
2447 {
2448 MonoBasicBlock *bb;
2449
2450 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2451 mono_verify_bblock (bb);
2452 }
2453
2454 void
2455 mono_destroy_compile (MonoCompile *cfg)
2456 {
2457 GSList *l;
2458
2459 if (cfg->header)
2460 mono_metadata_free_mh (cfg->header);
2461 //mono_mempool_stats (cfg->mempool);
2462 mono_free_loop_info (cfg);
2463 if (cfg->rs)
2464 mono_regstate_free (cfg->rs);
2465 if (cfg->spvars)
2466 g_hash_table_destroy (cfg->spvars);
2467 if (cfg->exvars)
2468 g_hash_table_destroy (cfg->exvars);
2469 for (l = cfg->headers_to_free; l; l = l->next)
2470 mono_metadata_free_mh (l->data);
2471 g_list_free (cfg->ldstr_list);
2472 g_hash_table_destroy (cfg->token_info_hash);
2473 if (cfg->abs_patches)
2474 g_hash_table_destroy (cfg->abs_patches);
2475 mono_mempool_destroy (cfg->mempool);
2476
2477 mono_debug_free_method (cfg);
2478
2479 g_free (cfg->varinfo);
2480 g_free (cfg->vars);
2481 g_free (cfg->exception_message);
2482 g_free (cfg);
2483 }
2484
2485 #ifdef MONO_HAVE_FAST_TLS
2486 MONO_FAST_TLS_DECLARE(mono_lmf_addr);
2487 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
2488 /*
2489 * When this is defined, the current lmf is stored in this tls variable instead of in
2490 * jit_tls->lmf.
2491 */
2492 MONO_FAST_TLS_DECLARE(mono_lmf);
2493 #endif
2494 #endif
2495
2496 MonoNativeTlsKey
2497 mono_get_jit_tls_key (void)
2498 {
2499 return mono_jit_tls_id;
2500 }
2501
2502 gint32
2503 mono_get_jit_tls_offset (void)
2504 {
2505 int offset;
2506 MONO_THREAD_VAR_OFFSET (mono_jit_tls, offset);
2507 return offset;
2508 }
2509
2510 gint32
2511 mono_get_lmf_tls_offset (void)
2512 {
2513 #if defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2514 int offset;
2515 MONO_THREAD_VAR_OFFSET(mono_lmf,offset);
2516 return offset;
2517 #else
2518 return -1;
2519 #endif
2520 }
2521
2522 gint32
2523 mono_get_lmf_addr_tls_offset (void)
2524 {
2525 int offset;
2526 MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
2527 return offset;
2528 }
2529
2530 MonoLMF *
2531 mono_get_lmf (void)
2532 {
2533 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2534 return MONO_FAST_TLS_GET (mono_lmf);
2535 #else
2536 MonoJitTlsData *jit_tls;
2537
2538 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
2539 return jit_tls->lmf;
2540 /*
2541 * We do not assert here because this function can be called from
2542 * mini-gc.c on a thread that has not executed any managed code, yet
2543 * (the thread object allocation can trigger a collection).
2544 */
2545 return NULL;
2546 #endif
2547 }
2548
2549 MonoLMF **
2550 mono_get_lmf_addr (void)
2551 {
2552 #ifdef MONO_HAVE_FAST_TLS
2553 return MONO_FAST_TLS_GET (mono_lmf_addr);
2554 #else
2555 MonoJitTlsData *jit_tls;
2556
2557 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
2558 return &jit_tls->lmf;
2559
2560 /*
2561 * When resolving the call to mono_jit_thread_attach full-aot will look
2562 * in the plt, which causes a call into the generic trampoline, which in turn
2563 * tries to resolve the lmf_addr creating a cyclic dependency. We cannot
2564 * call mono_jit_thread_attach from the native-to-managed wrapper, without
2565 * mono_get_lmf_addr, and mono_get_lmf_addr requires the thread to be attached.
2566 */
2567
2568 mono_jit_thread_attach (NULL);
2569
2570 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
2571 return &jit_tls->lmf;
2572
2573 g_assert_not_reached ();
2574 return NULL;
2575 #endif
2576 }
2577
2578 void
2579 mono_set_lmf (MonoLMF *lmf)
2580 {
2581 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2582 MONO_FAST_TLS_SET (mono_lmf, lmf);
2583 #endif
2584
2585 (*mono_get_lmf_addr ()) = lmf;
2586 }
2587
2588 static void
2589 mono_set_jit_tls (MonoJitTlsData *jit_tls)
2590 {
2591 mono_native_tls_set_value (mono_jit_tls_id, jit_tls);
2592
2593 #ifdef MONO_HAVE_FAST_TLS
2594 MONO_FAST_TLS_SET (mono_jit_tls, jit_tls);
2595 #endif
2596 }
2597
2598 static void
2599 mono_set_lmf_addr (gpointer lmf_addr)
2600 {
2601 #ifdef MONO_HAVE_FAST_TLS
2602 MONO_FAST_TLS_SET (mono_lmf_addr, lmf_addr);
2603 #endif
2604 }
2605
2606 /*
2607 * mono_jit_thread_attach:
2608 *
2609 * Called by native->managed wrappers. Returns the original domain which needs to be
2610 * restored, or NULL.
2611 */
2612 MonoDomain*
2613 mono_jit_thread_attach (MonoDomain *domain)
2614 {
2615 MonoDomain *orig;
2616
2617 if (!domain)
2618 /*
2619 * Happens when called from AOTed code which is only used in the root
2620 * domain.
2621 */
2622 domain = mono_get_root_domain ();
2623
2624 #ifdef MONO_HAVE_FAST_TLS
2625 if (!MONO_FAST_TLS_GET (mono_lmf_addr)) {
2626 mono_thread_attach (domain);
2627 // #678164
2628 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
2629 }
2630 #else
2631 if (!mono_native_tls_get_value (mono_jit_tls_id)) {
2632 mono_thread_attach (domain);
2633 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
2634 }
2635 #endif
2636 orig = mono_domain_get ();
2637 if (orig != domain)
2638 mono_domain_set (domain, TRUE);
2639
2640 return orig != domain ? orig : NULL;
2641 }
2642
2643 /* Called by native->managed wrappers */
2644 void
2645 mono_jit_set_domain (MonoDomain *domain)
2646 {
2647 if (domain)
2648 mono_domain_set (domain, TRUE);
2649 }
2650
2651 /**
2652 * mono_thread_abort:
2653 * @obj: exception object
2654 *
2655 * abort the thread, print exception information and stack trace
2656 */
2657 static void
2658 mono_thread_abort (MonoObject *obj)
2659 {
2660 /* MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id); */
2661
2662 /* handle_remove should be eventually called for this thread, too
2663 g_free (jit_tls);*/
2664
2665 if ((mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_LEGACY) ||
2666 (obj->vtable->klass == mono_defaults.threadabortexception_class)) {
2667 mono_thread_exit ();
2668 } else {
2669 MonoObject *other = NULL;
2670 MonoString *str = mono_object_to_string (obj, &other);
2671 if (str) {
2672 char *msg = mono_string_to_utf8 (str);
2673 fprintf (stderr, "[ERROR] FATAL UNHANDLED EXCEPTION: %s\n", msg);
2674 fflush (stderr);
2675 g_free (msg);
2676 }
2677
2678 exit (mono_environment_exitcode_get ());
2679 }
2680 }
2681
2682 static void*
2683 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
2684 {
2685 MonoJitTlsData *jit_tls;
2686 MonoLMF *lmf;
2687
2688 jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
2689 if (jit_tls)
2690 return jit_tls;
2691
2692 jit_tls = g_new0 (MonoJitTlsData, 1);
2693
2694 jit_tls->abort_func = abort_func;
2695 jit_tls->end_of_stack = stack_start;
2696
2697 mono_set_jit_tls (jit_tls);
2698
2699 lmf = g_new0 (MonoLMF, 1);
2700 MONO_ARCH_INIT_TOP_LMF_ENTRY (lmf);
2701
2702 jit_tls->first_lmf = lmf;
2703
2704 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2705 /* jit_tls->lmf is unused */
2706 MONO_FAST_TLS_SET (mono_lmf, lmf);
2707 mono_set_lmf_addr (MONO_FAST_TLS_ADDR (mono_lmf));
2708 #else
2709 mono_set_lmf_addr (&jit_tls->lmf);
2710
2711 jit_tls->lmf = lmf;
2712 #endif
2713
2714 mono_setup_altstack (jit_tls);
2715
2716 return jit_tls;
2717 }
2718
2719 static void
2720 free_jit_tls_data (MonoJitTlsData *jit_tls)
2721 {
2722 mono_arch_free_jit_tls_data (jit_tls);
2723 mono_free_altstack (jit_tls);
2724
2725 g_free (jit_tls->first_lmf);
2726 g_free (jit_tls);
2727 }
2728
2729 static void
2730 mono_thread_start_cb (intptr_t tid, gpointer stack_start, gpointer func)
2731 {
2732 MonoInternalThread *thread;
2733 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
2734 thread = mono_thread_internal_current ();
2735 mono_debugger_thread_created (tid, thread->root_domain_thread, jit_tls, func);
2736 if (thread)
2737 thread->jit_data = jit_tls;
2738
2739 mono_arch_cpu_init ();
2740 }
2741
2742 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
2743
2744 static void
2745 mono_thread_abort_dummy (MonoObject *obj)
2746 {
2747 if (mono_thread_attach_aborted_cb)
2748 mono_thread_attach_aborted_cb (obj);
2749 else
2750 mono_thread_abort (obj);
2751 }
2752
2753 static void
2754 mono_thread_attach_cb (intptr_t tid, gpointer stack_start)
2755 {
2756 MonoInternalThread *thread;
2757 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
2758 thread = mono_thread_internal_current ();
2759 mono_debugger_thread_created (tid, thread->root_domain_thread, (MonoJitTlsData *) jit_tls, NULL);
2760 if (thread)
2761 thread->jit_data = jit_tls;
2762 if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
2763 mono_runtime_setup_stat_profiler ();
2764
2765 mono_arch_cpu_init ();
2766 }
2767
2768 static void
2769 mini_thread_cleanup (MonoInternalThread *thread)
2770 {
2771 MonoJitTlsData *jit_tls = thread->jit_data;
2772
2773 if (jit_tls) {
2774 mono_debugger_thread_cleanup (jit_tls);
2775
2776 /* We can't clean up tls information if we are on another thread, it will clean up the wrong stuff
2777 * It would be nice to issue a warning when this happens outside of the shutdown sequence. but it's
2778 * not a trivial thing.
2779 *
2780 * The current offender is mono_thread_manage which cleanup threads from the outside.
2781 */
2782 if (thread == mono_thread_internal_current ())
2783 mono_set_jit_tls (NULL);
2784
2785 /* If we attach a thread but never call into managed land, we might never get an lmf.*/
2786 if (mono_get_lmf ()) {
2787 mono_set_lmf (NULL);
2788 mono_set_lmf_addr (NULL);
2789 }
2790
2791 free_jit_tls_data (jit_tls);
2792
2793 thread->jit_data = NULL;
2794 }
2795 }
2796
2797 static MonoInst*
2798 mono_create_tls_get (MonoCompile *cfg, int offset)
2799 {
2800 #ifdef MONO_ARCH_HAVE_TLS_GET
2801 if (MONO_ARCH_HAVE_TLS_GET) {
2802 MonoInst* ins;
2803
2804 if (offset == -1)
2805 return NULL;
2806
2807 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2808 ins->dreg = mono_alloc_preg (cfg);
2809 ins->inst_offset = offset;
2810 return ins;
2811 }
2812 #endif
2813 return NULL;
2814 }
2815
2816 MonoInst*
2817 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2818 {
2819 return mono_create_tls_get (cfg, mono_get_jit_tls_offset ());
2820 }
2821
2822 MonoInst*
2823 mono_get_domain_intrinsic (MonoCompile* cfg)
2824 {
2825 return mono_create_tls_get (cfg, mono_domain_get_tls_offset ());
2826 }
2827
2828 MonoInst*
2829 mono_get_thread_intrinsic (MonoCompile* cfg)
2830 {
2831 return mono_create_tls_get (cfg, mono_thread_get_tls_offset ());
2832 }
2833
2834 MonoInst*
2835 mono_get_lmf_intrinsic (MonoCompile* cfg)
2836 {
2837 return mono_create_tls_get (cfg, mono_get_lmf_tls_offset ());
2838 }
2839
2840 void
2841 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2842 {
2843 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2844
2845 ji->ip.i = ip;
2846 ji->type = type;
2847 ji->data.target = target;
2848 ji->next = cfg->patch_info;
2849
2850 cfg->patch_info = ji;
2851 }
2852
2853 MonoJumpInfo *
2854 mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target)
2855 {
2856 MonoJumpInfo *ji = g_new0 (MonoJumpInfo, 1);
2857
2858 ji->ip.i = ip;
2859 ji->type = type;
2860 ji->data.target = target;
2861 ji->next = list;
2862
2863 return ji;
2864 }
2865
2866 void
2867 mono_remove_patch_info (MonoCompile *cfg, int ip)
2868 {
2869 MonoJumpInfo **ji = &cfg->patch_info;
2870
2871 while (*ji) {
2872 if ((*ji)->ip.i == ip)
2873 *ji = (*ji)->next;
2874 else
2875 ji = &((*ji)->next);
2876 }
2877 }
2878
2879 /**
2880 * mono_patch_info_dup_mp:
2881 *
2882 * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
2883 */
2884 MonoJumpInfo*
2885 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
2886 {
2887 MonoJumpInfo *res = mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
2888 memcpy (res, patch_info, sizeof (MonoJumpInfo));
2889
2890 switch (patch_info->type) {
2891 case MONO_PATCH_INFO_RVA:
2892 case MONO_PATCH_INFO_LDSTR:
2893 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2894 case MONO_PATCH_INFO_LDTOKEN:
2895 case MONO_PATCH_INFO_DECLSEC:
2896 res->data.token = mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
2897 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
2898 break;
2899 case MONO_PATCH_INFO_SWITCH:
2900 res->data.table = mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
2901 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
2902 res->data.table->table = mono_mempool_alloc (mp, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2903 memcpy (res->data.table->table, patch_info->data.table->table, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2904 break;
2905 case MONO_PATCH_INFO_RGCTX_FETCH:
2906 res->data.rgctx_entry = mono_mempool_alloc (mp, sizeof (MonoJumpInfoRgctxEntry));
2907 memcpy (res->data.rgctx_entry, patch_info->data.rgctx_entry, sizeof (MonoJumpInfoRgctxEntry));
2908 res->data.rgctx_entry->data = mono_patch_info_dup_mp (mp, res->data.rgctx_entry->data);
2909 break;
2910 default:
2911 break;
2912 }
2913
2914 return res;
2915 }
2916
2917 guint
2918 mono_patch_info_hash (gconstpointer data)
2919 {
2920 const MonoJumpInfo *ji = (MonoJumpInfo*)data;
2921
2922 switch (ji->type) {
2923 case MONO_PATCH_INFO_RVA:
2924 case MONO_PATCH_INFO_LDSTR:
2925 case MONO_PATCH_INFO_LDTOKEN:
2926 case MONO_PATCH_INFO_DECLSEC:
2927 return (ji->type << 8) | ji->data.token->token;
2928 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2929 return (ji->type << 8) | ji->data.token->token | (ji->data.token->has_context ? (gsize)ji->data.token->context.class_inst : 0);
2930 case MONO_PATCH_INFO_INTERNAL_METHOD:
2931 return (ji->type << 8) | g_str_hash (ji->data.name);
2932 case MONO_PATCH_INFO_VTABLE:
2933 case MONO_PATCH_INFO_CLASS:
2934 case MONO_PATCH_INFO_IID:
2935 case MONO_PATCH_INFO_ADJUSTED_IID:
2936 case MONO_PATCH_INFO_CLASS_INIT:
2937 case MONO_PATCH_INFO_METHODCONST:
2938 case MONO_PATCH_INFO_METHOD:
2939 case MONO_PATCH_INFO_METHOD_JUMP:
2940 case MONO_PATCH_INFO_IMAGE:
2941 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2942 case MONO_PATCH_INFO_FIELD:
2943 case MONO_PATCH_INFO_SFLDA:
2944 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2945 return (ji->type << 8) | (gssize)ji->data.target;
2946 default:
2947 return (ji->type << 8);
2948 }
2949 }
2950
2951 /*
2952 * mono_patch_info_equal:
2953 *
2954 * This might fail to recognize equivalent patches, i.e. floats, so its only
2955 * usable in those cases where this is not a problem, i.e. sharing GOT slots
2956 * in AOT.
2957 */
2958 gint
2959 mono_patch_info_equal (gconstpointer ka, gconstpointer kb)
2960 {
2961 const MonoJumpInfo *ji1 = (MonoJumpInfo*)ka;
2962 const MonoJumpInfo *ji2 = (MonoJumpInfo*)kb;
2963
2964 if (ji1->type != ji2->type)
2965 return 0;
2966
2967 switch (ji1->type) {
2968 case MONO_PATCH_INFO_RVA:
2969 case MONO_PATCH_INFO_LDSTR:
2970 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2971 case MONO_PATCH_INFO_LDTOKEN:
2972 case MONO_PATCH_INFO_DECLSEC:
2973 if ((ji1->data.token->image != ji2->data.token->image) ||
2974 (ji1->data.token->token != ji2->data.token->token) ||
2975 (ji1->data.token->has_context != ji2->data.token->has_context) ||
2976 (ji1->data.token->context.class_inst != ji2->data.token->context.class_inst) ||
2977 (ji1->data.token->context.method_inst != ji2->data.token->context.method_inst))
2978 return 0;
2979 break;
2980 case MONO_PATCH_INFO_INTERNAL_METHOD:
2981 return g_str_equal (ji1->data.name, ji2->data.name);
2982
2983 case MONO_PATCH_INFO_RGCTX_FETCH: {
2984 MonoJumpInfoRgctxEntry *e1 = ji1->data.rgctx_entry;
2985 MonoJumpInfoRgctxEntry *e2 = ji2->data.rgctx_entry;
2986
2987 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);
2988 }
2989 default:
2990 if (ji1->data.target != ji2->data.target)
2991 return 0;
2992 break;
2993 }
2994
2995 return 1;
2996 }
2997
2998 gpointer
2999 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
3000 {
3001 unsigned char *ip = patch_info->ip.i + code;
3002 gconstpointer target = NULL;
3003
3004 switch (patch_info->type) {
3005 case MONO_PATCH_INFO_BB:
3006 /*
3007 * FIXME: This could be hit for methods without a prolog. Should use -1
3008 * but too much code depends on a 0 initial value.
3009 */
3010 //g_assert (patch_info->data.bb->native_offset);
3011 target = patch_info->data.bb->native_offset + code;
3012 break;
3013 case MONO_PATCH_INFO_ABS:
3014 target = patch_info->data.target;
3015 break;
3016 case MONO_PATCH_INFO_LABEL:
3017 target = patch_info->data.inst->inst_c0 + code;
3018 break;
3019 case MONO_PATCH_INFO_IP:
3020 #if defined(__native_client__) && defined(__native_client_codegen__)
3021 /* Need to transform to the destination address, it's */
3022 /* emitted as an immediate in the code. */
3023 target = nacl_inverse_modify_patch_target(ip);
3024 #else
3025 target = ip;
3026 #endif
3027 break;
3028 case MONO_PATCH_INFO_METHOD_REL:
3029 target = code + patch_info->data.offset;
3030 break;
3031 case MONO_PATCH_INFO_INTERNAL_METHOD: {
3032 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
3033 if (!mi) {
3034 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
3035 g_assert_not_reached ();
3036 }
3037 target = mono_icall_get_wrapper (mi);
3038 break;
3039 }
3040 case MONO_PATCH_INFO_METHOD_JUMP:
3041 target = mono_create_jump_trampoline (domain, patch_info->data.method, FALSE);
3042 #if defined(__native_client__) && defined(__native_client_codegen__)
3043 #if defined(TARGET_AMD64)
3044 /* This target is an absolute address, not relative to the */
3045 /* current code being emitted on AMD64. */
3046 target = nacl_inverse_modify_patch_target(target);
3047 #endif
3048 #endif
3049 break;
3050 case MONO_PATCH_INFO_METHOD:
3051 if (patch_info->data.method == method) {
3052 target = code;
3053 } else {
3054 /* get the trampoline to the method from the domain */
3055 target = mono_create_jit_trampoline_in_domain (domain, patch_info->data.method);
3056 }
3057 break;
3058 case MONO_PATCH_INFO_SWITCH: {
3059 gpointer *jump_table;
3060 int i;
3061
3062 #if defined(__native_client__) && defined(__native_client_codegen__)
3063 /* This memory will leak, but we don't care if we're */
3064 /* not deleting JIT'd methods anyway */
3065 jump_table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
3066 #else
3067 if (method && method->dynamic) {
3068 jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
3069 } else {
3070 if (mono_aot_only) {
3071 jump_table = mono_domain_alloc (domain, sizeof (gpointer) * patch_info->data.table->table_size);
3072 } else {
3073 jump_table = mono_domain_code_reserve (domain, sizeof (gpointer) * patch_info->data.table->table_size);
3074 }
3075 }
3076 #endif
3077
3078 for (i = 0; i < patch_info->data.table->table_size; i++) {
3079 #if defined(__native_client__) && defined(__native_client_codegen__)
3080 /* 'code' is relative to the current code blob, we */
3081 /* need to do this transform on it to make the */
3082 /* pointers in this table absolute */
3083 jump_table [i] = nacl_inverse_modify_patch_target (code) + GPOINTER_TO_INT (patch_info->data.table->table [i]);
3084 #else
3085 jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
3086 #endif
3087 }
3088
3089 #if defined(__native_client__) && defined(__native_client_codegen__)
3090 /* jump_table is in the data section, we need to transform */
3091 /* it here so when it gets modified in amd64_patch it will */
3092 /* then point back to the absolute data address */
3093 target = nacl_inverse_modify_patch_target (jump_table);
3094 #else
3095 target = jump_table;
3096 #endif
3097 break;
3098 }
3099 case MONO_PATCH_INFO_METHODCONST:
3100 case MONO_PATCH_INFO_CLASS:
3101 case MONO_PATCH_INFO_IMAGE:
3102 case MONO_PATCH_INFO_FIELD:
3103 case MONO_PATCH_INFO_SIGNATURE:
3104 target = patch_info->data.target;
3105 break;
3106 case MONO_PATCH_INFO_IID:
3107 mono_class_init (patch_info->data.klass);
3108 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
3109 break;
3110 case MONO_PATCH_INFO_ADJUSTED_IID:
3111 mono_class_init (patch_info->data.klass);
3112 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
3113 break;
3114 case MONO_PATCH_INFO_VTABLE:
3115 target = mono_class_vtable (domain, patch_info->data.klass);
3116 g_assert (target);
3117 break;
3118 case MONO_PATCH_INFO_CLASS_INIT: {
3119 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.klass);
3120
3121 g_assert (vtable);
3122 target = mono_create_class_init_trampoline (vtable);
3123 break;
3124 }
3125 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3126 target = mono_create_delegate_trampoline (domain, patch_info->data.klass);
3127 break;
3128 case MONO_PATCH_INFO_SFLDA: {
3129 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
3130
3131 if (mono_class_field_is_special_static (patch_info->data.field)) {
3132 gpointer addr = NULL;
3133
3134 mono_domain_lock (domain);
3135 if (domain->special_static_fields)
3136 addr = g_hash_table_lookup (domain->special_static_fields, patch_info->data.field);
3137 mono_domain_unlock (domain);
3138 g_assert (addr);
3139 return addr;
3140 }
3141
3142 g_assert (vtable);
3143 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
3144 /* Done by the generated code */
3145 ;
3146 else {
3147 if (run_cctors)
3148 mono_runtime_class_init (vtable);
3149 }
3150 target = (char*)mono_vtable_get_static_field_data (vtable) + patch_info->data.field->offset;
3151 break;
3152 }
3153 case MONO_PATCH_INFO_RVA: {
3154 guint32 field_index = mono_metadata_token_index (patch_info->data.token->token);
3155 guint32 rva;
3156
3157 mono_metadata_field_info (patch_info->data.token->image, field_index - 1, NULL, &rva, NULL);
3158 target = mono_image_rva_map (patch_info->data.token->image, rva);
3159 break;
3160 }
3161 case MONO_PATCH_INFO_R4:
3162 case MONO_PATCH_INFO_R8:
3163 target = patch_info->data.target;
3164 break;
3165 case MONO_PATCH_INFO_EXC_NAME:
3166 target = patch_info->data.name;
3167 break;
3168 case MONO_PATCH_INFO_LDSTR:
3169 target =
3170 mono_ldstr (domain, patch_info->data.token->image,
3171 mono_metadata_token_index (patch_info->data.token->token));
3172 break;
3173 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
3174 gpointer handle;
3175 MonoClass *handle_class;
3176
3177 handle = mono_ldtoken (patch_info->data.token->image,
3178 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL);
3179 mono_class_init (handle_class);
3180 mono_class_init (mono_class_from_mono_type (handle));
3181
3182 target =
3183 mono_type_get_object (domain, handle);
3184 break;
3185 }
3186 case MONO_PATCH_INFO_LDTOKEN: {
3187 gpointer handle;
3188 MonoClass *handle_class;
3189
3190 handle = mono_ldtoken (patch_info->data.token->image,
3191 patch_info->data.token->token, &handle_class, NULL);
3192 mono_class_init (handle_class);
3193
3194 target = handle;
3195 break;
3196 }
3197 case MONO_PATCH_INFO_DECLSEC:
3198 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
3199 break;
3200 case MONO_PATCH_INFO_ICALL_ADDR:
3201 /* run_cctors == 0 -> AOT */
3202 if (patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
3203 const char *exc_class;
3204 const char *exc_arg;
3205
3206 if (run_cctors) {
3207 target = mono_lookup_pinvoke_call (patch_info->data.method, &exc_class, &exc_arg);
3208 if (!target) {
3209 if (mono_aot_only)
3210 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
3211 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));
3212 }
3213 } else {
3214 target = NULL;
3215 }
3216 } else {
3217 target = mono_lookup_internal_call (patch_info->data.method);
3218
3219 if (!target && run_cctors)
3220 g_error ("Unregistered icall '%s'\n", mono_method_full_name (patch_info->data.method, TRUE));
3221 }
3222 break;
3223 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3224 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
3225 if (!mi) {
3226 g_warning ("unknown MONO_PATCH_INFO_JIT_ICALL_ADDR %s", patch_info->data.name);
3227 g_assert_not_reached ();
3228 }
3229 target = mi->func;
3230 break;
3231 }
3232 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3233 target = mono_thread_interruption_request_flag ();
3234 break;
3235 case MONO_PATCH_INFO_METHOD_RGCTX: {
3236 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.method->klass);
3237 g_assert (vtable);
3238
3239 target = mono_method_lookup_rgctx (vtable, mini_method_get_context (patch_info->data.method)->method_inst);
3240 break;
3241 }
3242 case MONO_PATCH_INFO_BB_OVF:
3243 case MONO_PATCH_INFO_EXC_OVF:
3244 case MONO_PATCH_INFO_GOT_OFFSET:
3245 case MONO_PATCH_INFO_NONE:
3246 break;
3247 case MONO_PATCH_INFO_RGCTX_FETCH: {
3248 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3249 guint32 slot = -1;
3250
3251 switch (entry->data->type) {
3252 case MONO_PATCH_INFO_CLASS:
3253 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));
3254 break;
3255 case MONO_PATCH_INFO_METHOD:
3256 case MONO_PATCH_INFO_METHODCONST:
3257 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));
3258 break;
3259 case MONO_PATCH_INFO_FIELD:
3260 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));
3261 break;
3262 default:
3263 g_assert_not_reached ();
3264 break;
3265 }
3266
3267 target = mono_create_rgctx_lazy_fetch_trampoline (slot);
3268 break;
3269 }
3270 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3271 target = mono_create_generic_class_init_trampoline ();
3272 break;
3273 case MONO_PATCH_INFO_MONITOR_ENTER:
3274 target = mono_create_monitor_enter_trampoline ();
3275 break;
3276 case MONO_PATCH_INFO_MONITOR_EXIT:
3277 target = mono_create_monitor_exit_trampoline ();
3278 break;
3279 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
3280 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3281 if (!run_cctors)
3282 /* AOT, not needed */
3283 target = NULL;
3284 else
3285 target = mono_arch_get_seq_point_info (domain, code);
3286 break;
3287 #endif
3288 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
3289 #ifdef MONO_ARCH_LLVM_SUPPORTED
3290 g_assert (mono_use_llvm);
3291 target = mono_create_llvm_imt_trampoline (domain, patch_info->data.imt_tramp->method, patch_info->data.imt_tramp->vt_offset);
3292 #else
3293 g_assert_not_reached ();
3294 #endif
3295 break;
3296 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR: {
3297 int card_table_shift_bits;
3298 gpointer card_table_mask;
3299
3300 target = mono_gc_get_card_table (&card_table_shift_bits, &card_table_mask);
3301 break;
3302 }
3303 case MONO_PATCH_INFO_CASTCLASS_CACHE: {
3304 target = mono_domain_alloc0 (domain, sizeof (gpointer));
3305 break;
3306 }
3307 default:
3308 g_assert_not_reached ();
3309 }
3310
3311 return (gpointer)target;
3312 }
3313
3314 void
3315 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
3316 {
3317 ins->inst_offset = native_offset;
3318 g_ptr_array_add (cfg->seq_points, ins);
3319 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
3320 bb->last_seq_point = ins;
3321 }
3322
3323 void
3324 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
3325 {
3326 MonoDwarfLocListEntry *entry = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
3327
3328 if (is_reg)
3329 g_assert (offset == 0);
3330
3331 entry->is_reg = is_reg;
3332 entry->reg = reg;
3333 entry->offset = offset;
3334 entry->from = from;
3335 entry->to = to;
3336
3337 if (var == cfg->args [0])
3338 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
3339 else if (var == cfg->rgctx_var)
3340 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
3341 }
3342
3343 #ifndef DISABLE_JIT
3344
3345 static void
3346 mono_compile_create_vars (MonoCompile *cfg)
3347 {
3348 MonoMethodSignature *sig;
3349 MonoMethodHeader *header;
3350 int i;
3351
3352 header = cfg->header;
3353
3354 sig = mono_method_signature (cfg->method);
3355
3356 if (!MONO_TYPE_IS_VOID (sig->ret)) {
3357 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
3358 /* Inhibit optimizations */
3359 cfg->ret->flags |= MONO_INST_VOLATILE;
3360 }
3361 if (cfg->verbose_level > 2)
3362 g_print ("creating vars\n");
3363
3364 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
3365
3366 if (sig->hasthis)
3367 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
3368
3369 for (i = 0; i < sig->param_count; ++i) {
3370 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
3371 }
3372
3373 if (cfg->verbose_level > 2) {
3374 if (cfg->ret) {
3375 printf ("\treturn : ");
3376 mono_print_ins (cfg->ret);
3377 }
3378
3379 if (sig->hasthis) {
3380 printf ("\tthis: ");
3381 mono_print_ins (cfg->args [0]);
3382 }
3383
3384 for (i = 0; i < sig->param_count; ++i) {
3385 printf ("\targ [%d]: ", i);
3386 mono_print_ins (cfg->args [i + sig->hasthis]);
3387 }
3388 }
3389
3390 cfg->locals_start = cfg->num_varinfo;
3391 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
3392
3393 if (cfg->verbose_level > 2)
3394 g_print ("creating locals\n");
3395
3396 for (i = 0; i < header->num_locals; ++i)
3397 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
3398
3399 if (cfg->verbose_level > 2)
3400 g_print ("locals done\n");
3401
3402 mono_arch_create_vars (cfg);
3403 }
3404
3405 #endif /* #ifndef DISABLE_JIT */
3406
3407 void
3408 mono_print_code (MonoCompile *cfg, const char* msg)
3409 {
3410 MonoBasicBlock *bb;
3411
3412 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3413 mono_print_bb (bb, msg);
3414 }
3415
3416 #ifndef DISABLE_JIT
3417
3418 static void
3419 mono_postprocess_patches (MonoCompile *cfg)
3420 {
3421 MonoJumpInfo *patch_info;
3422 int i;
3423
3424 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3425 switch (patch_info->type) {
3426 case MONO_PATCH_INFO_ABS: {
3427 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
3428
3429 /*
3430 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
3431 * absolute address.
3432 */
3433 if (info) {
3434 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
3435 // FIXME: CLEAN UP THIS MESS.
3436 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
3437 strstr (cfg->method->name, info->name)) {
3438 /*
3439 * This is an icall wrapper, and this is a call to the
3440 * wrapped function.
3441 */
3442 if (cfg->compile_aot) {
3443 patch_info->type = MONO_PATCH_INFO_JIT_ICALL_ADDR;
3444 patch_info->data.name = info->name;
3445 }
3446 } else {
3447 /* for these array methods we currently register the same function pointer
3448 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
3449 * will return the incorrect one depending on the order they are registered.
3450 * See tests/test-arr.cs
3451 */
3452 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
3453 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
3454 patch_info->data.name = info->name;
3455 }
3456 }
3457 }
3458
3459 if (patch_info->type == MONO_PATCH_INFO_ABS) {
3460 if (cfg->abs_patches) {
3461 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
3462 if (abs_ji) {
3463 patch_info->type = abs_ji->type;
3464 patch_info->data.target = abs_ji->data.target;
3465 }
3466 }
3467 }
3468
3469 break;
3470 }
3471 case MONO_PATCH_INFO_SWITCH: {
3472 gpointer *table;
3473 #if defined(__native_client__) && defined(__native_client_codegen__)
3474 /* This memory will leak. */
3475 /* TODO: can we free this when */
3476 /* making the final jump table? */
3477 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
3478 #else
3479 if (cfg->method->dynamic) {
3480 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
3481 } else {
3482 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
3483 }
3484 #endif
3485
3486 for (i = 0; i < patch_info->data.table->table_size; i++) {
3487 /* Might be NULL if the switch is eliminated */
3488 if (patch_info->data.table->table [i]) {
3489 g_assert (patch_info->data.table->table [i]->native_offset);
3490 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
3491 } else {
3492 table [i] = NULL;
3493 }
3494 }
3495 patch_info->data.table->table = (MonoBasicBlock**)table;
3496 break;
3497 }
3498 case MONO_PATCH_INFO_METHOD_JUMP: {
3499 MonoJumpList *jlist;
3500 MonoDomain *domain = cfg->domain;
3501 unsigned char *ip = cfg->native_code + patch_info->ip.i;
3502 #if defined(__native_client__) && defined(__native_client_codegen__)
3503 /* When this jump target gets evaluated, the method */
3504 /* will be installed in the dynamic code section, */
3505 /* not at the location of cfg->native_code. */
3506 ip = nacl_inverse_modify_patch_target (cfg->native_code) + patch_info->ip.i;
3507 #endif
3508
3509 mono_domain_lock (domain);
3510 jlist = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
3511 if (!jlist) {
3512 jlist = mono_domain_alloc0 (domain, sizeof (MonoJumpList));
3513 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
3514 }
3515 jlist->list = g_slist_prepend (jlist->list, ip);
3516 mono_domain_unlock (domain);
3517 break;
3518 }
3519 default:
3520 /* do nothing */
3521 break;
3522 }
3523 }
3524 }
3525
3526 static void
3527 collect_pred_seq_points (MonoBasicBlock *bb, MonoInst *ins, GSList **next, int depth)
3528 {
3529 int i;
3530 MonoBasicBlock *in_bb;
3531 GSList *l;
3532
3533 for (i = 0; i < bb->in_count; ++i) {
3534 in_bb = bb->in_bb [i];
3535
3536 if (in_bb->last_seq_point) {
3537 int src_index = in_bb->last_seq_point->backend.size;
3538 int dst_index = ins->backend.size;
3539
3540 /* bb->in_bb might contain duplicates */
3541 for (l = next [src_index]; l; l = l->next)
3542 if (GPOINTER_TO_UINT (l->data) == dst_index)
3543 break;
3544 if (!l)
3545 next [src_index] = g_slist_append (next [src_index], GUINT_TO_POINTER (dst_index));
3546 } else {
3547 /* Have to look at its predecessors */
3548 if (depth < 5)
3549 collect_pred_seq_points (in_bb, ins, next, depth + 1);
3550 }
3551 }
3552 }
3553
3554 static void
3555 mono_save_seq_point_info (MonoCompile *cfg)
3556 {
3557 MonoBasicBlock *bb;
3558 GSList *bb_seq_points, *l;
3559 MonoInst *last;
3560 MonoDomain *domain = cfg->domain;
3561 int i;
3562 MonoSeqPointInfo *info;
3563 GSList **next;
3564
3565 if (!cfg->seq_points)
3566 return;
3567
3568 info = g_malloc0 (sizeof (MonoSeqPointInfo) + (cfg->seq_points->len - MONO_ZERO_LEN_ARRAY) * sizeof (SeqPoint));
3569 info->len = cfg->seq_points->len;
3570 for (i = 0; i < cfg->seq_points->len; ++i) {
3571 SeqPoint *sp = &info->seq_points [i];
3572 MonoInst *ins = g_ptr_array_index (cfg->seq_points, i);
3573
3574 sp->il_offset = ins->inst_imm;
3575 sp->native_offset = ins->inst_offset;
3576
3577 /* Used below */
3578 ins->backend.size = i;
3579 }
3580
3581 /*
3582 * For each sequence point, compute the list of sequence points immediately
3583 * following it, this is needed to implement 'step over' in the debugger agent.
3584 */
3585 next = g_new0 (GSList*, cfg->seq_points->len);
3586 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3587 bb_seq_points = g_slist_reverse (bb->seq_points);
3588 last = NULL;
3589 for (l = bb_seq_points; l; l = l->next) {
3590 MonoInst *ins = l->data;
3591
3592 if (ins->inst_imm == METHOD_ENTRY_IL_OFFSET || ins->inst_imm == METHOD_EXIT_IL_OFFSET)
3593 /* Used to implement method entry/exit events */
3594 continue;
3595
3596 if (last != NULL) {
3597 /* Link with the previous seq point in the same bb */
3598 next [last->backend.size] = g_slist_append (next [last->backend.size], GUINT_TO_POINTER (ins->backend.size));
3599 } else {
3600 /* Link with the last bb in the previous bblocks */
3601 collect_pred_seq_points (bb, ins, next, 0);
3602 }
3603
3604 last = ins;
3605 }
3606
3607 if (bb->last_ins && bb->last_ins->opcode == OP_ENDFINALLY) {
3608 MonoBasicBlock *bb2;
3609 MonoInst *endfinally_seq_point = NULL;
3610
3611 /*
3612 * The ENDFINALLY branches are not represented in the cfg, so link it with all seq points starting bbs.
3613 */
3614 l = g_slist_last (bb->seq_points);
3615 g_assert (l);
3616 endfinally_seq_point = l->data;
3617
3618 for (bb2 = cfg->bb_entry; bb2; bb2 = bb2->next_bb) {
3619 GSList *l = g_slist_last (bb2->seq_points);
3620
3621 if (l) {
3622 MonoInst *ins = l->data;
3623
3624 if (!(ins->inst_imm == METHOD_ENTRY_IL_OFFSET || ins->inst_imm == METHOD_EXIT_IL_OFFSET) && ins != endfinally_seq_point)
3625 next [endfinally_seq_point->backend.size] = g_slist_append (next [endfinally_seq_point->backend.size], GUINT_TO_POINTER (ins->backend.size));
3626 }
3627 }
3628 }
3629 }
3630
3631 if (cfg->verbose_level > 2) {
3632 printf ("\nSEQ POINT MAP: \n");
3633 }
3634
3635 for (i = 0; i < cfg->seq_points->len; ++i) {
3636 SeqPoint *sp = &info->seq_points [i];
3637 GSList *l;
3638 int j, next_index;
3639
3640 sp->next_len = g_slist_length (next [i]);
3641 sp->next = g_new (int, sp->next_len);
3642 j = 0;
3643 if (cfg->verbose_level > 2 && next [i]) {
3644 printf ("\tIL0x%x ->", sp->il_offset);
3645 for (l = next [i]; l; l = l->next) {
3646 next_index = GPOINTER_TO_UINT (l->data);
3647 printf (" IL0x%x", info->seq_points [next_index].il_offset);
3648 }
3649 printf ("\n");
3650 }
3651 for (l = next [i]; l; l = l->next) {
3652 next_index = GPOINTER_TO_UINT (l->data);
3653 sp->next [j ++] = next_index;
3654 }
3655 g_slist_free (next [i]);
3656 }
3657 g_free (next);
3658
3659 cfg->seq_point_info = info;
3660
3661 // FIXME: dynamic methods
3662 if (!cfg->compile_aot) {
3663 mono_domain_lock (domain);
3664 // FIXME: How can the lookup succeed ?
3665 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, cfg->method_to_register))
3666 g_hash_table_insert (domain_jit_info (domain)->seq_points, cfg->method_to_register, info);
3667 mono_domain_unlock (domain);
3668 }
3669
3670 g_ptr_array_free (cfg->seq_points, TRUE);
3671 cfg->seq_points = NULL;
3672 }
3673
3674 void
3675 mono_codegen (MonoCompile *cfg)
3676 {
3677 MonoBasicBlock *bb;
3678 int max_epilog_size;
3679 guint8 *code;
3680 MonoDomain *code_domain;
3681
3682 if (mono_using_xdebug)
3683 /*
3684 * Recent gdb versions have trouble processing symbol files containing
3685 * overlapping address ranges, so allocate all code from the code manager
3686 * of the root domain. (#666152).
3687 */
3688 code_domain = mono_get_root_domain ();
3689 else
3690 code_domain = cfg->domain;
3691
3692 #if defined(__native_client_codegen__) && defined(__native_client__)
3693 void *code_dest;
3694
3695 /* This keeps patch targets from being transformed during
3696 * ordinary method compilation, for local branches and jumps.
3697 */
3698 nacl_allow_target_modification (FALSE);
3699 #endif
3700
3701 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3702 cfg->spill_count = 0;
3703 /* we reuse dfn here */
3704 /* bb->dfn = bb_count++; */
3705
3706 mono_arch_lowering_pass (cfg, bb);
3707
3708 if (cfg->opt & MONO_OPT_PEEPHOLE)
3709 mono_arch_peephole_pass_1 (cfg, bb);
3710
3711 if (!cfg->globalra)
3712 mono_local_regalloc (cfg, bb);
3713
3714 if (cfg->opt & MONO_OPT_PEEPHOLE)
3715 mono_arch_peephole_pass_2 (cfg, bb);
3716 }
3717
3718 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
3719 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
3720
3721 code = mono_arch_emit_prolog (cfg);
3722
3723 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
3724 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
3725
3726 cfg->code_len = code - cfg->native_code;
3727 cfg->prolog_end = cfg->code_len;
3728
3729 mono_debug_open_method (cfg);
3730
3731 /* emit code all basic blocks */
3732 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3733 bb->native_offset = cfg->code_len;
3734 bb->real_native_offset = cfg->code_len;
3735 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
3736 mono_arch_output_basic_block (cfg, bb);
3737 bb->native_length = cfg->code_len - bb->native_offset;
3738
3739 if (bb == cfg->bb_exit) {
3740 cfg->epilog_begin = cfg->code_len;
3741
3742 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
3743 code = cfg->native_code + cfg->code_len;
3744 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
3745 cfg->code_len = code - cfg->native_code;
3746 g_assert (cfg->code_len < cfg->code_size);
3747 }
3748
3749 mono_arch_emit_epilog (cfg);
3750 }
3751 }
3752
3753 #ifdef __native_client_codegen__
3754 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
3755 #endif
3756 mono_arch_emit_exceptions (cfg);
3757
3758 max_epilog_size = 0;
3759
3760 /* we always allocate code in cfg->domain->code_mp to increase locality */
3761 cfg->code_size = cfg->code_len + max_epilog_size;
3762 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
3763
3764 if (cfg->method->dynamic) {
3765 guint unwindlen = 0;
3766 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3767 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3768 #endif
3769 /* Allocate the code into a separate memory pool so it can be freed */
3770 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
3771 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
3772 mono_domain_lock (cfg->domain);
3773 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
3774 mono_domain_unlock (cfg->domain);
3775
3776 if (mono_using_xdebug)
3777 /* See the comment for cfg->code_domain */
3778 code = mono_domain_code_reserve (code_domain, cfg->code_size + unwindlen);
3779 else
3780 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + unwindlen);
3781 } else {
3782 guint unwindlen = 0;
3783 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3784 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3785 #endif
3786 code = mono_domain_code_reserve (code_domain, cfg->code_size + unwindlen);
3787 }
3788 #if defined(__native_client_codegen__) && defined(__native_client__)
3789 nacl_allow_target_modification (TRUE);
3790 #endif
3791
3792 g_assert (code);
3793 memcpy (code, cfg->native_code, cfg->code_len);
3794 #if defined(__default_codegen__)
3795 g_free (cfg->native_code);
3796 #elif defined(__native_client_codegen__)
3797 if (cfg->native_code_alloc) {
3798 g_free (cfg->native_code_alloc);
3799 cfg->native_code_alloc = 0;
3800 }
3801 else if (cfg->native_code) {
3802 g_free (cfg->native_code);
3803 }
3804 #endif /* __native_client_codegen__ */
3805 cfg->native_code = code;
3806 code = cfg->native_code + cfg->code_len;
3807
3808 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
3809 mono_postprocess_patches (cfg);
3810
3811 #ifdef VALGRIND_JIT_REGISTER_MAP
3812 if (valgrind_register){
3813 char* nm = mono_method_full_name (cfg->method, TRUE);
3814 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
3815 g_free (nm);
3816 }
3817 #endif
3818
3819 if (cfg->verbose_level > 0) {
3820 char* nm = mono_method_full_name (cfg->method, TRUE);
3821 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
3822 nm,
3823 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3824 g_free (nm);
3825 }
3826
3827 {
3828 gboolean is_generic = FALSE;
3829
3830 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
3831 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
3832 is_generic = TRUE;
3833 }
3834
3835 if (cfg->generic_sharing_context)
3836 g_assert (is_generic);
3837 }
3838
3839 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
3840 mono_arch_save_unwind_info (cfg);
3841 #endif
3842
3843 #if defined(__native_client_codegen__) && defined(__native_client__)
3844 if (!cfg->compile_aot) {
3845 if (cfg->method->dynamic) {
3846 code_dest = nacl_code_manager_get_code_dest(cfg->dynamic_info->code_mp, cfg->native_code);
3847 } else {
3848 code_dest = nacl_domain_get_code_dest(cfg->domain, cfg->native_code);
3849 }
3850 }
3851 #endif
3852
3853 #if defined(__native_client_codegen__)
3854 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
3855 #endif
3856
3857 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);
3858
3859 if (cfg->method->dynamic) {
3860 if (mono_using_xdebug)
3861 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
3862 else
3863 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
3864 } else {
3865 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
3866 }
3867 #if defined(__native_client_codegen__) && defined(__native_client__)
3868 cfg->native_code = code_dest;
3869 #endif
3870 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
3871
3872 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
3873
3874 mono_debug_close_method (cfg);
3875
3876 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3877 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
3878 #endif
3879 }
3880
3881 static void
3882 compute_reachable (MonoBasicBlock *bb)
3883 {
3884 int i;
3885
3886 if (!(bb->flags & BB_VISITED)) {
3887 bb->flags |= BB_VISITED;
3888 for (i = 0; i < bb->out_count; ++i)
3889 compute_reachable (bb->out_bb [i]);
3890 }
3891 }
3892
3893 static void
3894 mono_handle_out_of_line_bblock (MonoCompile *cfg)
3895 {
3896 MonoBasicBlock *bb;
3897 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3898 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
3899 MonoInst *ins;
3900 MONO_INST_NEW (cfg, ins, OP_BR);
3901 MONO_ADD_INS (bb, ins);
3902 ins->inst_target_bb = bb->next_bb;
3903 }
3904 }
3905 }
3906
3907 static MonoJitInfo*
3908 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
3909 {
3910 GSList *tmp;
3911 MonoMethodHeader *header;
3912 MonoJitInfo *jinfo;
3913 int num_clauses;
3914 int generic_info_size, arch_eh_info_size = 0;
3915 int holes_size = 0, num_holes = 0, cas_size = 0;
3916 guint32 stack_size = 0;
3917
3918 g_assert (method_to_compile == cfg->method);
3919 header = cfg->header;
3920
3921 if (cfg->generic_sharing_context)
3922 generic_info_size = sizeof (MonoGenericJitInfo);
3923 else
3924 generic_info_size = 0;
3925
3926 if (cfg->arch_eh_jit_info) {
3927 MonoJitArgumentInfo *arg_info;
3928 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
3929
3930 /*
3931 * This cannot be computed during stack walking, as
3932 * mono_arch_get_argument_info () is not signal safe.
3933 */
3934 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
3935 stack_size = mono_arch_get_argument_info (cfg->generic_sharing_context, sig, sig->param_count, arg_info);
3936
3937 if (stack_size)
3938 arch_eh_info_size = sizeof (MonoArchEHJitInfo);
3939 }
3940
3941 if (cfg->try_block_holes) {
3942 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3943 TryBlockHole *hole = tmp->data;
3944 MonoExceptionClause *ec = hole->clause;
3945 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
3946 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3947 g_assert (clause_last_bb);
3948
3949 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
3950 if (clause_last_bb->native_offset != hole_end)
3951 ++num_holes;
3952 }
3953 if (num_holes)
3954 holes_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
3955 if (G_UNLIKELY (cfg->verbose_level >= 4))
3956 printf ("Number of try block holes %d\n", num_holes);
3957 }
3958
3959 if (mono_method_has_declsec (cfg->method_to_register)) {
3960 cas_size = sizeof (MonoMethodCasInfo);
3961 }
3962
3963 if (COMPILE_LLVM (cfg))
3964 num_clauses = cfg->llvm_ex_info_len;
3965 else
3966 num_clauses = header->num_clauses;
3967
3968 if (cfg->method->dynamic) {
3969 jinfo = g_malloc0 (MONO_SIZEOF_JIT_INFO + (num_clauses * sizeof (MonoJitExceptionInfo)) +
3970 generic_info_size + holes_size + arch_eh_info_size + cas_size);
3971 } else {
3972 jinfo = mono_domain_alloc0 (cfg->domain, MONO_SIZEOF_JIT_INFO +
3973 (num_clauses * sizeof (MonoJitExceptionInfo)) +
3974 generic_info_size + holes_size + arch_eh_info_size + cas_size);
3975 }
3976
3977 jinfo->method = cfg->method_to_register;
3978 jinfo->code_start = cfg->native_code;
3979 jinfo->code_size = cfg->code_len;
3980 jinfo->used_regs = cfg->used_int_regs;
3981 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
3982 jinfo->num_clauses = num_clauses;
3983
3984 if (COMPILE_LLVM (cfg))
3985 jinfo->from_llvm = TRUE;
3986
3987 if (cfg->generic_sharing_context) {
3988 MonoInst *inst;
3989 MonoGenericJitInfo *gi;
3990 GSList *loclist = NULL;
3991
3992 jinfo->has_generic_jit_info = 1;
3993
3994 gi = mono_jit_info_get_generic_jit_info (jinfo);
3995 g_assert (gi);
3996
3997 gi->generic_sharing_context = cfg->generic_sharing_context;
3998
3999 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
4000 mini_method_get_context (method_to_compile)->method_inst ||
4001 method_to_compile->klass->valuetype) {
4002 g_assert (cfg->rgctx_var);
4003 }
4004
4005 gi->has_this = 1;
4006
4007 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
4008 mini_method_get_context (method_to_compile)->method_inst ||
4009 method_to_compile->klass->valuetype) {
4010 inst = cfg->rgctx_var;
4011 if (!COMPILE_LLVM (cfg))
4012 g_assert (inst->opcode == OP_REGOFFSET);
4013 loclist = cfg->rgctx_loclist;
4014 } else {
4015 inst = cfg->args [0];
4016 loclist = cfg->this_loclist;
4017 }
4018
4019 if (loclist) {
4020 /* Needed to handle async exceptions */
4021 GSList *l;
4022 int i;
4023
4024 gi->nlocs = g_slist_length (loclist);
4025 if (cfg->method->dynamic)
4026 gi->locations = g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
4027 else
4028 gi->locations = mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
4029 i = 0;
4030 for (l = loclist; l; l = l->next) {
4031 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
4032 i ++;
4033 }
4034 }
4035
4036 if (COMPILE_LLVM (cfg)) {
4037 g_assert (cfg->llvm_this_reg != -1);
4038 gi->this_in_reg = 0;
4039 gi->this_reg = cfg->llvm_this_reg;
4040 gi->this_offset = cfg->llvm_this_offset;
4041 } else if (inst->opcode == OP_REGVAR) {
4042 gi->this_in_reg = 1;
4043 gi->this_reg = inst->dreg;
4044 } else {
4045 g_assert (inst->opcode == OP_REGOFFSET);
4046 #ifdef TARGET_X86
4047 g_assert (inst->inst_basereg == X86_EBP);
4048 #elif defined(TARGET_AMD64)
4049 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
4050 #endif
4051 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
4052
4053 gi->this_in_reg = 0;
4054 gi->this_reg = inst->inst_basereg;
4055 gi->this_offset = inst->inst_offset;
4056 }
4057 }
4058
4059 if (num_holes) {
4060 MonoTryBlockHoleTableJitInfo *table;
4061 int i;
4062
4063 jinfo->has_try_block_holes = 1;
4064 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4065 table->num_holes = (guint16)num_holes;
4066 i = 0;
4067 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
4068 guint32 start_bb_offset;
4069 MonoTryBlockHoleJitInfo *hole;
4070 TryBlockHole *hole_data = tmp->data;
4071 MonoExceptionClause *ec = hole_data->clause;
4072 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
4073 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
4074 g_assert (clause_last_bb);
4075
4076 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
4077 if (clause_last_bb->native_offset == hole_end)
4078 continue;
4079
4080 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
4081 hole = &table->holes [i++];
4082 hole->clause = hole_data->clause - &header->clauses [0];
4083 hole->offset = (guint32)hole_data->start_offset;
4084 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
4085
4086 if (G_UNLIKELY (cfg->verbose_level >= 4))
4087 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
4088 }
4089 g_assert (i == num_holes);
4090 }
4091
4092 if (arch_eh_info_size) {
4093 MonoArchEHJitInfo *info;
4094
4095 jinfo->has_arch_eh_info = 1;
4096 info = mono_jit_info_get_arch_eh_info (jinfo);
4097
4098 info->stack_size = stack_size;
4099 }
4100
4101 if (cas_size) {
4102 jinfo->has_cas_info = 1;
4103 }
4104
4105 if (COMPILE_LLVM (cfg)) {
4106 if (num_clauses)
4107 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
4108 } else if (header->num_clauses) {
4109 int i;
4110
4111 for (i = 0; i < header->num_clauses; i++) {
4112 MonoExceptionClause *ec = &header->clauses [i];
4113 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
4114 MonoBasicBlock *tblock;
4115 MonoInst *exvar;
4116
4117 ei->flags = ec->flags;
4118
4119 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
4120 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
4121
4122 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
4123 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
4124 g_assert (tblock);
4125 ei->data.filter = cfg->native_code + tblock->native_offset;
4126 } else {
4127 ei->data.catch_class = ec->data.catch_class;
4128 }
4129
4130 tblock = cfg->cil_offset_to_bb [ec->try_offset];
4131 g_assert (tblock);
4132 g_assert (tblock->native_offset);
4133 ei->try_start = cfg->native_code + tblock->native_offset;
4134 if (tblock->extend_try_block) {
4135 /*
4136 * Extend the try block backwards to include parts of the previous call
4137 * instruction.
4138 */
4139 ei->try_start = (guint8*)ei->try_start - MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
4140 }
4141 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
4142 g_assert (tblock);
4143 if (!tblock->native_offset) {
4144 int j, end;
4145 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
4146 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
4147 if (bb && bb->native_offset) {
4148 tblock = bb;
4149 break;
4150 }
4151 }
4152 }
4153 ei->try_end = cfg->native_code + tblock->native_offset;
4154 g_assert (tblock->native_offset);
4155 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
4156 g_assert (tblock);
4157 ei->handler_start = cfg->native_code + tblock->native_offset;
4158
4159 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
4160 TryBlockHole *hole = tmp->data;
4161 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
4162 if (hole->clause == ec && hole_end == ei->try_end) {
4163 if (G_UNLIKELY (cfg->verbose_level >= 4))
4164 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
4165
4166 ei->try_end = cfg->native_code + hole->start_offset;
4167 break;
4168 }
4169 }
4170
4171 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
4172 int end_offset;
4173 if (ec->handler_offset + ec->handler_len < header->code_size) {
4174 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
4175 g_assert (tblock);
4176 end_offset = tblock->native_offset;
4177 } else {
4178 end_offset = cfg->epilog_begin;
4179 }
4180 ei->data.handler_end = cfg->native_code + end_offset;
4181 }
4182 }
4183 }
4184
4185 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
4186 int i;
4187 for (i = 0; i < jinfo->num_clauses; i++) {
4188 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
4189 int start = (guint8*)ei->try_start - cfg->native_code;
4190 int end = (guint8*)ei->try_end - cfg->native_code;
4191 int handler = (guint8*)ei->handler_start - cfg->native_code;
4192
4193 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x\n", i, ei->flags, start, end, handler);
4194 }
4195 }
4196
4197 /*
4198 * Its possible to generate dwarf unwind info for xdebug etc, but not actually
4199 * using it during runtime, hence the define.
4200 */
4201 #ifdef MONO_ARCH_HAVE_XP_UNWIND
4202 if (cfg->encoded_unwind_ops) {
4203 jinfo->used_regs = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
4204 g_free (cfg->encoded_unwind_ops);
4205 } else if (cfg->unwind_ops) {
4206 guint32 info_len;
4207 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
4208
4209 jinfo->used_regs = mono_cache_unwind_info (unwind_info, info_len);
4210 g_free (unwind_info);
4211 }
4212 #endif
4213
4214 return jinfo;
4215 }
4216 #endif
4217
4218 /*
4219 * mini_get_shared_method:
4220 *
4221 * Return the method which is actually compiled/registered when doing generic sharing.
4222 */
4223 MonoMethod*
4224 mini_get_shared_method (MonoMethod *method)
4225 {
4226 MonoGenericContext shared_context;
4227 MonoMethod *declaring_method, *res;
4228 int i;
4229 gboolean partial = FALSE;
4230
4231 if (method->is_generic || method->klass->generic_container)
4232 declaring_method = method;
4233 else
4234 declaring_method = mono_method_get_declaring_generic_method (method);
4235
4236 if (declaring_method->is_generic)
4237 shared_context = mono_method_get_generic_container (declaring_method)->context;
4238 else
4239 shared_context = declaring_method->klass->generic_container->context;
4240
4241 /* Handle partial sharing */
4242 if (method != declaring_method && method->is_inflated && !mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE)) {
4243 MonoGenericContext *context = mono_method_get_context (method);
4244 MonoGenericInst *inst;
4245 MonoType **type_argv;
4246
4247 /*
4248 * Create the shared context by replacing the ref type arguments with
4249 * type parameters, and keeping the rest.
4250 */
4251 partial = TRUE;
4252 inst = context->class_inst;
4253 if (inst) {
4254 type_argv = g_new0 (MonoType*, inst->type_argc);
4255 for (i = 0; i < inst->type_argc; ++i) {
4256 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
4257 type_argv [i] = shared_context.class_inst->type_argv [i];
4258 else
4259 type_argv [i] = inst->type_argv [i];
4260 }
4261
4262 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4263 g_free (type_argv);
4264 }
4265
4266 inst = context->method_inst;
4267 if (inst) {
4268 type_argv = g_new0 (MonoType*, inst->type_argc);
4269 for (i = 0; i < inst->type_argc; ++i) {
4270 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
4271 type_argv [i] = shared_context.method_inst->type_argv [i];
4272 else
4273 type_argv [i] = inst->type_argv [i];
4274 }
4275
4276 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4277 g_free (type_argv);
4278 }
4279 }
4280
4281 res = mono_class_inflate_generic_method (declaring_method, &shared_context);
4282 if (!partial) {
4283 /* The result should be an inflated method whose parent is not inflated */
4284 g_assert (!res->klass->is_inflated);
4285 }
4286 return res;
4287 }
4288
4289 #ifndef DISABLE_JIT
4290 /*
4291 * mini_method_compile:
4292 * @method: the method to compile
4293 * @opts: the optimization flags to use
4294 * @domain: the domain where the method will be compiled in
4295 * @run_cctors: whether we should run type ctors if possible
4296 * @compile_aot: whether this is an AOT compilation
4297 * @parts: debug flag
4298 *
4299 * Returns: a MonoCompile* pointer. Caller must check the exception_type
4300 * field in the returned struct to see if compilation succeded.
4301 */
4302 MonoCompile*
4303 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
4304 {
4305 MonoMethodHeader *header;
4306 MonoMethodSignature *sig;
4307 MonoError err;
4308 guint8 *ip;
4309 MonoCompile *cfg;
4310 int dfn, i, code_size_ratio;
4311 gboolean deadce_has_run = FALSE;
4312 gboolean try_generic_shared, try_llvm = FALSE;
4313 MonoMethod *method_to_compile, *method_to_register;
4314
4315 InterlockedIncrement (&mono_jit_stats.methods_compiled);
4316 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
4317 mono_profiler_method_jit (method);
4318 if (MONO_PROBE_METHOD_COMPILE_BEGIN_ENABLED ())
4319 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
4320
4321 if (compile_aot)
4322 /*
4323 * We might get passed the original generic method definition or
4324 * instances with type parameters.
4325 * FIXME: Remove the method->klass->generic_class limitation.
4326 */
4327 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
4328 (opts & MONO_OPT_GSHARED) && ((method->is_generic || method->klass->generic_container) || (!method->klass->generic_class && mono_method_is_generic_sharable_impl (method, TRUE)));
4329 else
4330 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
4331 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable_impl (method, FALSE);
4332
4333 if (opts & MONO_OPT_GSHARED) {
4334 if (try_generic_shared)
4335 mono_stats.generics_sharable_methods++;
4336 else if (mono_method_is_generic_impl (method))
4337 mono_stats.generics_unsharable_methods++;
4338 }
4339
4340 #ifdef ENABLE_LLVM
4341 try_llvm = mono_use_llvm;
4342 #endif
4343
4344 restart_compile:
4345 if (try_generic_shared) {
4346 method_to_compile = mini_get_shared_method (method);
4347 g_assert (method_to_compile);
4348 } else {
4349 method_to_compile = method;
4350 }
4351
4352 cfg = g_new0 (MonoCompile, 1);
4353 cfg->method = method_to_compile;
4354 cfg->header = mono_method_get_header (cfg->method);
4355 cfg->mempool = mono_mempool_new ();
4356 cfg->opt = opts;
4357 cfg->prof_options = mono_profiler_get_events ();
4358 cfg->run_cctors = run_cctors;
4359 cfg->domain = domain;
4360 cfg->verbose_level = mini_verbose;
4361 cfg->compile_aot = compile_aot;
4362 cfg->skip_visibility = method->skip_visibility;
4363 cfg->orig_method = method;
4364 cfg->gen_seq_points = debug_options.gen_seq_points;
4365 cfg->explicit_null_checks = debug_options.explicit_null_checks;
4366 cfg->soft_breakpoints = debug_options.soft_breakpoints;
4367 if (try_generic_shared)
4368 cfg->generic_sharing_context = (MonoGenericSharingContext*)&cfg->generic_sharing_context;
4369 cfg->compile_llvm = try_llvm;
4370 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
4371
4372 if (cfg->gen_seq_points)
4373 cfg->seq_points = g_ptr_array_new ();
4374
4375 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container)) {
4376 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
4377 return cfg;
4378 }
4379
4380 if (cfg->generic_sharing_context) {
4381 method_to_register = method_to_compile;
4382 } else {
4383 g_assert (method == method_to_compile);
4384 method_to_register = method;
4385 }
4386 cfg->method_to_register = method_to_register;
4387
4388 mono_error_init (&err);
4389 sig = mono_method_signature_checked (cfg->method, &err);
4390 if (!sig) {
4391 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
4392 cfg->exception_message = g_strdup (mono_error_get_message (&err));
4393 mono_error_cleanup (&err);
4394 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4395 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4396 return cfg;
4397 }
4398
4399 header = cfg->header;
4400 if (!header) {
4401 MonoLoaderError *error;
4402
4403 if ((error = mono_loader_get_last_error ())) {
4404 cfg->exception_type = error->exception_type;
4405 } else {
4406 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
4407 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
4408 }
4409 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4410 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4411 return cfg;
4412 }
4413
4414 #ifdef ENABLE_LLVM
4415 {
4416 static gboolean inited;
4417
4418 if (!inited) {
4419 inited = TRUE;
4420 }
4421
4422 /*
4423 * Check for methods which cannot be compiled by LLVM early, to avoid
4424 * the extra compilation pass.
4425 */
4426 if (COMPILE_LLVM (cfg)) {
4427 mono_llvm_check_method_supported (cfg);
4428 if (cfg->disable_llvm) {
4429 if (cfg->verbose_level >= 1) {
4430 //nm = mono_method_full_name (cfg->method, TRUE);
4431 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
4432 //g_free (nm);
4433 }
4434 mono_destroy_compile (cfg);
4435 try_llvm = FALSE;
4436 goto restart_compile;
4437 }
4438 }
4439 }
4440 #endif
4441
4442 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
4443 if (mono_debug_using_mono_debugger () || debug_options.mdb_optimizations) {
4444 cfg->disable_reuse_registers = TRUE;
4445 cfg->disable_reuse_stack_slots = TRUE;
4446 /*
4447 * This decreases the change the debugger will read registers/stack slots which are
4448 * not yet initialized.
4449 */
4450 cfg->disable_initlocals_opt = TRUE;
4451
4452 cfg->extend_live_ranges = TRUE;
4453
4454 /* Temporarily disable this when running in the debugger until we have support
4455 * for this in the debugger. */
4456 /* This is no longer needed with sdb */
4457 //cfg->disable_omit_fp = TRUE;
4458
4459 /* The debugger needs all locals to be on the stack or in a global register */
4460 cfg->disable_vreg_to_lvreg = TRUE;
4461
4462 /* Don't remove unused variables when running inside the debugger since the user
4463 * may still want to view them. */
4464 cfg->disable_deadce_vars = TRUE;
4465
4466 // cfg->opt |= MONO_OPT_SHARED;
4467 cfg->opt &= ~MONO_OPT_DEADCE;
4468 cfg->opt &= ~MONO_OPT_INLINE;
4469 cfg->opt &= ~MONO_OPT_COPYPROP;
4470 cfg->opt &= ~MONO_OPT_CONSPROP;
4471 /* This is no longer needed with sdb */
4472 //cfg->opt &= ~MONO_OPT_GSHARED;
4473
4474 /* This is needed for the soft debugger, which doesn't like code after the epilog */
4475 cfg->disable_out_of_line_bblocks = TRUE;
4476 }
4477
4478 if (mono_using_xdebug) {
4479 /*
4480 * Make each variable use its own register/stack slot and extend
4481 * their liveness to cover the whole method, making them displayable
4482 * in gdb even after they are dead.
4483 */
4484 cfg->disable_reuse_registers = TRUE;
4485 cfg->disable_reuse_stack_slots = TRUE;
4486 cfg->extend_live_ranges = TRUE;
4487 cfg->compute_precise_live_ranges = TRUE;
4488 }
4489
4490 mini_gc_init_cfg (cfg);
4491
4492 if (COMPILE_LLVM (cfg)) {
4493 cfg->opt |= MONO_OPT_ABCREM;
4494 }
4495
4496 if (getenv ("MONO_VERBOSE_METHOD")) {
4497 char *name = getenv ("MONO_VERBOSE_METHOD");
4498
4499 if ((strchr (name, '.') > name) || strchr (name, ':')) {
4500 MonoMethodDesc *desc;
4501
4502 desc = mono_method_desc_new (name, TRUE);
4503 if (mono_method_desc_full_match (desc, cfg->method)) {
4504 cfg->verbose_level = 4;
4505 }
4506 mono_method_desc_free (desc);
4507 } else {
4508 if (strcmp (cfg->method->name, getenv ("MONO_VERBOSE_METHOD")) == 0)
4509 cfg->verbose_level = 4;
4510 }
4511 }
4512
4513 ip = (guint8 *)header->code;
4514
4515 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
4516
4517 if (cfg->verbose_level > 0) {
4518 char *method_name;
4519 if (COMPILE_LLVM (cfg))
4520 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
4521 else if (cfg->generic_sharing_context)
4522 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
4523 else
4524 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
4525 g_free (method_name);
4526 }
4527
4528 if (cfg->opt & (MONO_OPT_ABCREM | MONO_OPT_SSAPRE))
4529 cfg->opt |= MONO_OPT_SSA;
4530
4531 /*
4532 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")))
4533 cfg->globalra = TRUE;
4534 */
4535
4536 //cfg->globalra = TRUE;
4537
4538 //if (!strcmp (cfg->method->klass->name, "Tests") && !cfg->method->wrapper_type)
4539 // cfg->globalra = TRUE;
4540
4541 {
4542 static int count = 0;
4543 count ++;
4544
4545 /*
4546 if (getenv ("COUNT2")) {
4547 cfg->globalra = TRUE;
4548 if (count == atoi (getenv ("COUNT2")))
4549 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
4550 if (count > atoi (getenv ("COUNT2")))
4551 cfg->globalra = FALSE;
4552 }
4553 */
4554 }
4555
4556 if (header->clauses)
4557 cfg->globalra = FALSE;
4558
4559 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
4560 /* The code in the prolog clobbers caller saved registers */
4561 cfg->globalra = FALSE;
4562
4563 // FIXME: Disable globalra in case of tracing/profiling
4564
4565 if (cfg->method->save_lmf)
4566 /* The LMF saving code might clobber caller saved registers */
4567 cfg->globalra = FALSE;
4568
4569 if (header->code_size > 5000)
4570 // FIXME:
4571 /* Too large bblocks could overflow the ins positions */
4572 cfg->globalra = FALSE;
4573
4574 cfg->rs = mono_regstate_new ();
4575 if (cfg->globalra)
4576 cfg->rs->next_vreg = MONO_MAX_IREGS + MONO_MAX_FREGS;
4577 cfg->next_vreg = cfg->rs->next_vreg;
4578
4579 /* FIXME: Fix SSA to handle branches inside bblocks */
4580 if (cfg->opt & MONO_OPT_SSA)
4581 cfg->enable_extended_bblocks = FALSE;
4582
4583 /*
4584 * FIXME: This confuses liveness analysis because variables which are assigned after
4585 * a branch inside a bblock become part of the kill set, even though the assignment
4586 * might not get executed. This causes the optimize_initlocals pass to delete some
4587 * assignments which are needed.
4588 * Also, the mono_if_conversion pass needs to be modified to recognize the code
4589 * created by this.
4590 */
4591 //cfg->enable_extended_bblocks = TRUE;
4592
4593 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
4594 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
4595 if (mini_get_debug_options ()->break_on_unverified)
4596 G_BREAKPOINT ();
4597 return cfg;
4598 }
4599
4600 /*
4601 * create MonoInst* which represents arguments and local variables
4602 */
4603 mono_compile_create_vars (cfg);
4604
4605 /* SSAPRE is not supported on linear IR */
4606 cfg->opt &= ~MONO_OPT_SSAPRE;
4607
4608 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, NULL, 0, FALSE);
4609
4610 if (i < 0) {
4611 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
4612 if (compile_aot) {
4613 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4614 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4615 return cfg;
4616 }
4617 mono_destroy_compile (cfg);
4618 try_generic_shared = FALSE;
4619 goto restart_compile;
4620 }
4621 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
4622
4623 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4624 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4625 /* cfg contains the details of the failure, so let the caller cleanup */
4626 return cfg;
4627 }
4628
4629 cfg->stat_basic_blocks += cfg->num_bblocks;
4630
4631 if (COMPILE_LLVM (cfg)) {
4632 MonoInst *ins;
4633
4634 /* The IR has to be in SSA form for LLVM */
4635 cfg->opt |= MONO_OPT_SSA;
4636
4637 // FIXME:
4638 if (cfg->ret) {
4639 // Allow SSA on the result value
4640 cfg->ret->flags &= ~MONO_INST_VOLATILE;
4641
4642 // Add an explicit return instruction referencing the return value
4643 MONO_INST_NEW (cfg, ins, OP_SETRET);
4644 ins->sreg1 = cfg->ret->dreg;
4645
4646 MONO_ADD_INS (cfg->bb_exit, ins);
4647 }
4648
4649 cfg->opt &= ~MONO_OPT_LINEARS;
4650
4651 /* FIXME: */
4652 cfg->opt &= ~MONO_OPT_BRANCH;
4653 }
4654
4655 /* todo: remove code when we have verified that the liveness for try/catch blocks
4656 * works perfectly
4657 */
4658 /*
4659 * Currently, this can't be commented out since exception blocks are not
4660 * processed during liveness analysis.
4661 * It is also needed, because otherwise the local optimization passes would
4662 * delete assignments in cases like this:
4663 * r1 <- 1
4664 * <something which throws>
4665 * r1 <- 2
4666 * This also allows SSA to be run on methods containing exception clauses, since
4667 * SSA will ignore variables marked VOLATILE.
4668 */
4669 mono_liveness_handle_exception_clauses (cfg);
4670
4671 mono_handle_out_of_line_bblock (cfg);
4672
4673 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
4674
4675 if (!COMPILE_LLVM (cfg))
4676 mono_decompose_long_opts (cfg);
4677
4678 /* Should be done before branch opts */
4679 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
4680 mono_local_cprop (cfg);
4681
4682 if (cfg->opt & MONO_OPT_BRANCH)
4683 mono_optimize_branches (cfg);
4684
4685 /* This must be done _before_ global reg alloc and _after_ decompose */
4686 mono_handle_global_vregs (cfg);
4687 if (cfg->opt & MONO_OPT_DEADCE)
4688 mono_local_deadce (cfg);
4689 /* Disable this for LLVM to make the IR easier to handle */
4690 if (!COMPILE_LLVM (cfg))
4691 mono_if_conversion (cfg);
4692
4693 if ((cfg->opt & MONO_OPT_SSAPRE) || cfg->globalra)
4694 mono_remove_critical_edges (cfg);
4695
4696 /* Depth-first ordering on basic blocks */
4697 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4698
4699 cfg->max_block_num = cfg->num_bblocks;
4700
4701 dfn = 0;
4702 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4703 if (cfg->num_bblocks != dfn + 1) {
4704 MonoBasicBlock *bb;
4705
4706 cfg->num_bblocks = dfn + 1;
4707
4708 /* remove unreachable code, because the code in them may be
4709 * inconsistent (access to dead variables for example) */
4710 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4711 bb->flags &= ~BB_VISITED;
4712 compute_reachable (cfg->bb_entry);
4713 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4714 if (bb->flags & BB_EXCEPTION_HANDLER)
4715 compute_reachable (bb);
4716 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4717 if (!(bb->flags & BB_VISITED)) {
4718 if (cfg->verbose_level > 1)
4719 g_print ("found unreachable code in BB%d\n", bb->block_num);
4720 bb->code = bb->last_ins = NULL;
4721 while (bb->out_count)
4722 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
4723 }
4724 }
4725 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4726 bb->flags &= ~BB_VISITED;
4727 }
4728
4729 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
4730 /*
4731 * we disable some optimizations if there are too many variables
4732 * because JIT time may become too expensive. The actual number needs
4733 * to be tweaked and eventually the non-linear algorithms should be fixed.
4734 */
4735 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
4736 cfg->disable_ssa = TRUE;
4737 }
4738
4739 if (cfg->opt & MONO_OPT_LOOP) {
4740 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
4741 mono_compute_natural_loops (cfg);
4742 }
4743
4744 /* after method_to_ir */
4745 if (parts == 1) {
4746 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4747 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4748 return cfg;
4749 }
4750
4751 /*
4752 if (header->num_clauses)
4753 cfg->disable_ssa = TRUE;
4754 */
4755
4756 //#define DEBUGSSA "logic_run"
4757 #define DEBUGSSA_CLASS "Tests"
4758 #ifdef DEBUGSSA
4759
4760 if (!cfg->disable_ssa) {
4761 mono_local_cprop (cfg);
4762
4763 #ifndef DISABLE_SSA
4764 mono_ssa_compute (cfg);
4765 #endif
4766 }
4767 #else
4768 if (cfg->opt & MONO_OPT_SSA) {
4769 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
4770 #ifndef DISABLE_SSA
4771 mono_ssa_compute (cfg);
4772 #endif
4773
4774 if (cfg->verbose_level >= 2) {
4775 print_dfn (cfg);
4776 }
4777 }
4778 }
4779 #endif
4780
4781 /* after SSA translation */
4782 if (parts == 2) {
4783 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4784 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4785 return cfg;
4786 }
4787
4788 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
4789 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4790 #ifndef DISABLE_SSA
4791 mono_ssa_cprop (cfg);
4792 #endif
4793 }
4794 }
4795
4796 #ifndef DISABLE_SSA
4797 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4798 //mono_ssa_strength_reduction (cfg);
4799
4800 if (cfg->opt & MONO_OPT_SSAPRE) {
4801 mono_perform_ssapre (cfg);
4802 //mono_local_cprop (cfg);
4803 }
4804
4805 if (cfg->opt & MONO_OPT_DEADCE) {
4806 mono_ssa_deadce (cfg);
4807 deadce_has_run = TRUE;
4808 }
4809
4810 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
4811 mono_perform_abc_removal (cfg);
4812
4813 mono_ssa_remove (cfg);
4814 mono_local_cprop (cfg);
4815 mono_handle_global_vregs (cfg);
4816 if (cfg->opt & MONO_OPT_DEADCE)
4817 mono_local_deadce (cfg);
4818
4819 if (cfg->opt & MONO_OPT_BRANCH) {
4820 MonoBasicBlock *bb;
4821
4822 mono_optimize_branches (cfg);
4823
4824 /* Have to recompute cfg->bblocks and bb->dfn */
4825 if (cfg->globalra) {
4826 mono_remove_critical_edges (cfg);
4827
4828 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4829 bb->dfn = 0;
4830
4831 /* Depth-first ordering on basic blocks */
4832 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4833
4834 dfn = 0;
4835 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4836 cfg->num_bblocks = dfn + 1;
4837 }
4838 }
4839 }
4840 #endif
4841
4842 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
4843 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
4844 if (cfg->opt & MONO_OPT_ABCREM)
4845 mono_perform_abc_removal (cfg);
4846 }
4847
4848 /* after SSA removal */
4849 if (parts == 3) {
4850 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4851 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4852 return cfg;
4853 }
4854
4855 #ifdef MONO_ARCH_SOFT_FLOAT
4856 if (!COMPILE_LLVM (cfg))
4857 mono_decompose_soft_float (cfg);
4858 #endif
4859 if (!COMPILE_LLVM (cfg))
4860 mono_decompose_vtype_opts (cfg);
4861 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
4862 mono_decompose_array_access_opts (cfg);
4863
4864 if (cfg->got_var) {
4865 #ifndef MONO_ARCH_GOT_REG
4866 GList *regs;
4867 #endif
4868 int got_reg;
4869
4870 g_assert (cfg->got_var_allocated);
4871
4872 /*
4873 * Allways allocate the GOT var to a register, because keeping it
4874 * in memory will increase the number of live temporaries in some
4875 * code created by inssel.brg, leading to the well known spills+
4876 * branches problem. Testcase: mcs crash in
4877 * System.MonoCustomAttrs:GetCustomAttributes.
4878 */
4879 #ifdef MONO_ARCH_GOT_REG
4880 got_reg = MONO_ARCH_GOT_REG;
4881 #else
4882 regs = mono_arch_get_global_int_regs (cfg);
4883 g_assert (regs);
4884 got_reg = GPOINTER_TO_INT (regs->data);
4885 g_list_free (regs);
4886 #endif
4887 cfg->got_var->opcode = OP_REGVAR;
4888 cfg->got_var->dreg = got_reg;
4889 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
4890 }
4891
4892 /*
4893 * Have to call this again to process variables added since the first call.
4894 */
4895 mono_liveness_handle_exception_clauses (cfg);
4896
4897 if (cfg->globalra) {
4898 MonoBasicBlock *bb;
4899
4900 /* Have to do this before regalloc since it can create vregs */
4901 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4902 mono_arch_lowering_pass (cfg, bb);
4903
4904 mono_global_regalloc (cfg);
4905 }
4906
4907 if ((cfg->opt & MONO_OPT_LINEARS) && !cfg->globalra) {
4908 GList *vars, *regs, *l;
4909
4910 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
4911 cfg->comp_done &= ~MONO_COMP_LIVENESS;
4912 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
4913 mono_analyze_liveness (cfg);
4914
4915 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
4916 regs = mono_arch_get_global_int_regs (cfg);
4917 /* Remove the reg reserved for holding the GOT address */
4918 if (cfg->got_var) {
4919 for (l = regs; l; l = l->next) {
4920 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
4921 regs = g_list_delete_link (regs, l);
4922 break;
4923 }
4924 }
4925 }
4926 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
4927 }
4928 }
4929
4930 //mono_print_code (cfg, "");
4931
4932 //print_dfn (cfg);
4933
4934 /* variables are allocated after decompose, since decompose could create temps */
4935 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
4936 mono_arch_allocate_vars (cfg);
4937 if (cfg->exception_type)
4938 return cfg;
4939 }
4940
4941 {
4942 MonoBasicBlock *bb;
4943 gboolean need_local_opts;
4944
4945 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
4946 mono_spill_global_vars (cfg, &need_local_opts);
4947
4948 if (need_local_opts || cfg->compile_aot) {
4949 /* To optimize code created by spill_global_vars */
4950 mono_local_cprop (cfg);
4951 if (cfg->opt & MONO_OPT_DEADCE)
4952 mono_local_deadce (cfg);
4953 }
4954 }
4955
4956 /* Add branches between non-consecutive bblocks */
4957 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4958 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
4959 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
4960 /* we are careful when inverting, since bugs like #59580
4961 * could show up when dealing with NaNs.
4962 */
4963 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
4964 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
4965 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
4966 bb->last_ins->inst_false_bb = tmp;
4967
4968 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
4969 } else {
4970 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
4971 inst->opcode = OP_BR;
4972 inst->inst_target_bb = bb->last_ins->inst_false_bb;
4973 mono_bblock_add_inst (bb, inst);
4974 }
4975 }
4976 }
4977
4978 if (cfg->verbose_level >= 4 && !cfg->globalra) {
4979 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4980 MonoInst *tree = bb->code;
4981 g_print ("DUMP BLOCK %d:\n", bb->block_num);
4982 if (!tree)
4983 continue;
4984 for (; tree; tree = tree->next) {
4985 mono_print_ins_index (-1, tree);
4986 }
4987 }
4988 }
4989
4990 /* FIXME: */
4991 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4992 bb->max_vreg = cfg->next_vreg;
4993 }
4994 }
4995
4996 if (COMPILE_LLVM (cfg)) {
4997 #ifdef ENABLE_LLVM
4998 char *nm;
4999
5000 /* The IR has to be in SSA form for LLVM */
5001 if (!(cfg->comp_done & MONO_COMP_SSA)) {
5002 cfg->exception_message = g_strdup ("SSA disabled.");
5003 cfg->disable_llvm = TRUE;
5004 }
5005
5006 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
5007 mono_decompose_array_access_opts (cfg);
5008
5009 if (!cfg->disable_llvm)
5010 mono_llvm_emit_method (cfg);
5011 if (cfg->disable_llvm) {
5012 if (cfg->verbose_level >= 1) {
5013 //nm = mono_method_full_name (cfg->method, TRUE);
5014 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
5015 //g_free (nm);
5016 }
5017 mono_destroy_compile (cfg);
5018 try_llvm = FALSE;
5019 goto restart_compile;
5020 }
5021
5022 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
5023 nm = mono_method_full_name (cfg->method, TRUE);
5024 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
5025 nm,
5026 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
5027 g_free (nm);
5028 }
5029 #endif
5030 } else {
5031 mono_codegen (cfg);
5032 }
5033
5034 if (COMPILE_LLVM (cfg))
5035 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
5036 else
5037 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
5038
5039 cfg->jit_info = create_jit_info (cfg, method_to_compile);
5040
5041 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
5042 if (cfg->extend_live_ranges) {
5043 /* Extend live ranges to cover the whole method */
5044 for (i = 0; i < cfg->num_varinfo; ++i)
5045 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
5046 }
5047 #endif
5048
5049 if (!cfg->compile_aot)
5050 mono_save_xdebug_info (cfg);
5051
5052 mini_gc_create_gc_map (cfg);
5053
5054 mono_save_seq_point_info (cfg);
5055
5056 if (cfg->verbose_level >= 2) {
5057 char *id = mono_method_full_name (cfg->method, FALSE);
5058 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
5059 g_free (id);
5060 }
5061
5062 if (!cfg->compile_aot) {
5063 mono_domain_lock (cfg->domain);
5064 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
5065
5066 if (cfg->method->dynamic)
5067 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
5068 mono_domain_unlock (cfg->domain);
5069 }
5070
5071 /* collect statistics */
5072 mono_perfcounters->jit_methods++;
5073 mono_perfcounters->jit_bytes += header->code_size;
5074 mono_jit_stats.allocated_code_size += cfg->code_len;
5075 code_size_ratio = cfg->code_len;
5076 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
5077 mono_jit_stats.biggest_method_size = code_size_ratio;
5078 g_free (mono_jit_stats.biggest_method);
5079 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
5080 }
5081 code_size_ratio = (code_size_ratio * 100) / header->code_size;
5082 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
5083 mono_jit_stats.max_code_size_ratio = code_size_ratio;
5084 g_free (mono_jit_stats.max_ratio_method);
5085 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
5086 }
5087 mono_jit_stats.native_code_size += cfg->code_len;
5088
5089 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
5090 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
5091
5092 return cfg;
5093 }
5094
5095 #else
5096
5097 MonoCompile*
5098 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
5099 {
5100 g_assert_not_reached ();
5101 return NULL;
5102 }
5103
5104 #endif /* DISABLE_JIT */
5105
5106 MonoJitInfo*
5107 mono_domain_lookup_shared_generic (MonoDomain *domain, MonoMethod *method)
5108 {
5109 static gboolean inited = FALSE;
5110 static int lookups = 0;
5111 static int failed_lookups = 0;
5112 MonoJitInfo *ji;
5113
5114 ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, mini_get_shared_method (method));
5115 if (ji && !ji->has_generic_jit_info)
5116 ji = NULL;
5117
5118 if (!inited) {
5119 mono_counters_register ("Shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &lookups);
5120 mono_counters_register ("Failed shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &failed_lookups);
5121 inited = TRUE;
5122 }
5123
5124 ++lookups;
5125 if (!ji)
5126 ++failed_lookups;
5127
5128 return ji;
5129 }
5130
5131 /*
5132 * LOCKING: Assumes domain->jit_code_hash_lock is held.
5133 */
5134 static MonoJitInfo*
5135 lookup_method_inner (MonoDomain *domain, MonoMethod *method)
5136 {
5137 MonoJitInfo *ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, method);
5138
5139 if (ji)
5140 return ji;
5141
5142 if (!mono_method_is_generic_sharable_impl (method, FALSE))
5143 return NULL;
5144 return mono_domain_lookup_shared_generic (domain, method);
5145 }
5146
5147 static MonoJitInfo*
5148 lookup_method (MonoDomain *domain, MonoMethod *method)
5149 {
5150 MonoJitInfo *info;
5151
5152 mono_loader_lock (); /*FIXME lookup_method_inner acquired it*/
5153 mono_domain_jit_code_hash_lock (domain);
5154 info = lookup_method_inner (domain, method);
5155 mono_domain_jit_code_hash_unlock (domain);
5156 mono_loader_unlock ();
5157
5158 return info;
5159 }
5160
5161 #if ENABLE_JIT_MAP
5162 static FILE* perf_map_file = NULL;
5163
5164 void
5165 mono_enable_jit_map (void)
5166 {
5167 if (!perf_map_file) {
5168 char name [64];
5169 g_snprintf (name, sizeof (name), "/tmp/perf-%d.map", getpid ());
5170 unlink (name);
5171 perf_map_file = fopen (name, "w");
5172 }
5173 }
5174
5175 void
5176 mono_emit_jit_tramp (void *start, int size, const char *desc)
5177 {
5178 if (perf_map_file)
5179 fprintf (perf_map_file, "%llx %x %s\n", (long long unsigned int)(gsize)start, size, desc);
5180 }
5181
5182 void
5183 mono_emit_jit_map (MonoJitInfo *jinfo)
5184 {
5185 if (perf_map_file) {
5186 char *name = mono_method_full_name (jinfo->method, TRUE);
5187 mono_emit_jit_tramp (jinfo->code_start, jinfo->code_size, name);
5188 g_free (name);
5189 }
5190 }
5191
5192 gboolean
5193 mono_jit_map_is_enabled (void)
5194 {
5195 return perf_map_file != NULL;
5196 }
5197
5198 #endif
5199
5200 static gpointer
5201 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoException **jit_ex)
5202 {
5203 MonoCompile *cfg;
5204 gpointer code = NULL;
5205 MonoJitInfo *jinfo, *info;
5206 MonoVTable *vtable;
5207 MonoException *ex = NULL;
5208 guint32 prof_options;
5209 GTimer *jit_timer;
5210 MonoMethod *prof_method;
5211
5212 #ifdef MONO_USE_AOT_COMPILER
5213 if (opt & MONO_OPT_AOT) {
5214 MonoDomain *domain = mono_domain_get ();
5215
5216 mono_class_init (method->klass);
5217
5218 if ((code = mono_aot_get_method (domain, method))) {
5219 vtable = mono_class_vtable (domain, method->klass);
5220 g_assert (vtable);
5221 mono_runtime_class_init (vtable);
5222
5223 return code;
5224 }
5225 }
5226 #endif
5227
5228 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
5229 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
5230 MonoMethod *nm;
5231 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
5232
5233 if (!piinfo->addr) {
5234 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
5235 piinfo->addr = mono_lookup_internal_call (method);
5236 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
5237 #ifdef HOST_WIN32
5238 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);
5239 #else
5240 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);
5241 #endif
5242 else
5243 mono_lookup_pinvoke_call (method, NULL, NULL);
5244 }
5245 nm = mono_marshal_get_native_wrapper (method, check_for_pending_exc, FALSE);
5246 code = mono_get_addr_from_ftnptr (mono_compile_method (nm));
5247 jinfo = mono_jit_info_table_find (target_domain, code);
5248 if (!jinfo)
5249 jinfo = mono_jit_info_table_find (mono_domain_get (), code);
5250 if (jinfo)
5251 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
5252 return code;
5253
5254 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
5255 //mono_debug_add_wrapper (method, nm);
5256 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
5257 const char *name = method->name;
5258 char *full_name, *msg;
5259 MonoMethod *nm;
5260
5261 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
5262 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
5263 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
5264 g_assert (mi);
5265 /*
5266 * We need to make sure this wrapper
5267 * is compiled because it might end up
5268 * in an (M)RGCTX if generic sharing
5269 * is enabled, and would be called
5270 * indirectly. If it were a
5271 * trampoline we'd try to patch that
5272 * indirect call, which is not
5273 * possible.
5274 */
5275 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
5276 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
5277 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
5278 return mono_create_delegate_trampoline (target_domain, method->klass);
5279 #else
5280 nm = mono_marshal_get_delegate_invoke (method, NULL);
5281 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
5282 #endif
5283 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
5284 nm = mono_marshal_get_delegate_begin_invoke (method);
5285 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
5286 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
5287 nm = mono_marshal_get_delegate_end_invoke (method);
5288 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
5289 }
5290 }
5291
5292 full_name = mono_method_full_name (method, TRUE);
5293 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
5294 *jit_ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
5295 g_free (full_name);
5296 g_free (msg);
5297 return NULL;
5298 }
5299
5300 if (mono_aot_only) {
5301 char *fullname = mono_method_full_name (method, TRUE);
5302 char *msg = g_strdup_printf ("Attempting to JIT compile method '%s' while running with --aot-only.\n", fullname);
5303
5304 *jit_ex = mono_get_exception_execution_engine (msg);
5305 g_free (fullname);
5306 g_free (msg);
5307
5308 return NULL;
5309 }
5310
5311 jit_timer = g_timer_new ();
5312
5313 cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
5314 prof_method = cfg->method;
5315
5316 g_timer_stop (jit_timer);
5317 mono_jit_stats.jit_time += g_timer_elapsed (jit_timer, NULL);
5318 g_timer_destroy (jit_timer);
5319
5320 switch (cfg->exception_type) {
5321 case MONO_EXCEPTION_NONE:
5322 break;
5323 case MONO_EXCEPTION_TYPE_LOAD:
5324 case MONO_EXCEPTION_MISSING_FIELD:
5325 case MONO_EXCEPTION_MISSING_METHOD:
5326 case MONO_EXCEPTION_FILE_NOT_FOUND:
5327 case MONO_EXCEPTION_BAD_IMAGE: {
5328 /* Throw a type load exception if needed */
5329 MonoLoaderError *error = mono_loader_get_last_error ();
5330
5331 if (error) {
5332 ex = mono_loader_error_prepare_exception (error);
5333 } else {
5334 if (cfg->exception_ptr) {
5335 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
5336 } else {
5337 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
5338 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
5339 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
5340 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
5341 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
5342 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
5343 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
5344 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FileNotFoundException", cfg->exception_message);
5345 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
5346 ex = mono_get_exception_bad_image_format (cfg->exception_message);
5347 else
5348 g_assert_not_reached ();
5349 }
5350 }
5351 break;
5352 }
5353 case MONO_EXCEPTION_INVALID_PROGRAM:
5354 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
5355 break;
5356 case MONO_EXCEPTION_UNVERIFIABLE_IL:
5357 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
5358 break;
5359 case MONO_EXCEPTION_METHOD_ACCESS:
5360 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
5361 break;
5362 case MONO_EXCEPTION_FIELD_ACCESS:
5363 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
5364 break;
5365 /* this can only be set if the security manager is active */
5366 case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
5367 MonoSecurityManager* secman = mono_security_manager_get_methods ();
5368 MonoObject *exc = NULL;
5369 gpointer args [2];
5370
5371 args [0] = &cfg->exception_data;
5372 args [1] = &method;
5373 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
5374
5375 ex = (MonoException*)exc;
5376 break;
5377 }
5378 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
5379 MonoException *exp = cfg->exception_ptr;
5380 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
5381
5382 ex = exp;
5383 break;
5384 }
5385 case MONO_EXCEPTION_OUT_OF_MEMORY:
5386 ex = mono_domain_get ()->out_of_memory_ex;
5387 break;
5388 default:
5389 g_assert_not_reached ();
5390 }
5391
5392 if (ex) {
5393 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
5394 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
5395
5396 mono_destroy_compile (cfg);
5397 *jit_ex = ex;
5398
5399 return NULL;
5400 }
5401
5402 mono_loader_lock (); /*FIXME lookup_method_inner requires the loader lock*/
5403 mono_domain_lock (target_domain);
5404
5405 /* Check if some other thread already did the job. In this case, we can
5406 discard the code this thread generated. */
5407
5408 mono_domain_jit_code_hash_lock (target_domain);
5409
5410 info = lookup_method_inner (target_domain, method);
5411 if (info) {
5412 /* We can't use a domain specific method in another domain */
5413 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
5414 code = info->code_start;
5415 // printf("Discarding code for method %s\n", method->name);
5416 }
5417 }
5418
5419 if (code == NULL) {
5420 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->method, cfg->jit_info);
5421 mono_domain_jit_code_hash_unlock (target_domain);
5422 code = cfg->native_code;
5423
5424 if (cfg->generic_sharing_context && mono_method_is_generic_sharable_impl (method, FALSE))
5425 mono_stats.generics_shared_methods++;
5426 } else {
5427 mono_domain_jit_code_hash_unlock (target_domain);
5428 }
5429
5430 jinfo = cfg->jit_info;
5431
5432 prof_options = cfg->prof_options;
5433
5434 /*
5435 * Update global stats while holding a lock, instead of doing many
5436 * InterlockedIncrement operations during JITting.
5437 */
5438 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
5439 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
5440 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
5441 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
5442 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
5443 mono_jit_stats.regvars += cfg->stat_n_regvars;
5444 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
5445 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
5446 mono_jit_stats.cas_demand_generation += cfg->stat_cas_demand_generation;
5447 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
5448
5449 mono_destroy_compile (cfg);
5450
5451 #ifndef DISABLE_JIT
5452 if (domain_jit_info (target_domain)->jump_target_hash) {
5453 MonoJumpInfo patch_info;
5454 MonoJumpList *jlist;
5455 GSList *tmp;
5456 jlist = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
5457 if (jlist) {
5458 patch_info.next = NULL;
5459 patch_info.ip.i = 0;
5460 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
5461 patch_info.data.method = method;
5462 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
5463
5464 for (tmp = jlist->list; tmp; tmp = tmp->next)
5465 mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, NULL, TRUE);
5466 }
5467 }
5468
5469 mono_emit_jit_map (jinfo);
5470 #endif
5471 mono_domain_unlock (target_domain);
5472 mono_loader_unlock ();
5473
5474 vtable = mono_class_vtable (target_domain, method->klass);
5475 if (!vtable) {
5476 ex = mono_class_get_exception_for_failure (method->klass);
5477 g_assert (ex);
5478 *jit_ex = ex;
5479 return NULL;
5480 }
5481
5482 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
5483 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
5484 if (mono_marshal_method_from_wrapper (method)) {
5485 /* Native func wrappers have no method */
5486 /* The profiler doesn't know about wrappers, so pass the original icall method */
5487 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
5488 }
5489 }
5490 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
5491 if (prof_method != method) {
5492 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
5493 }
5494 }
5495
5496 ex = mono_runtime_class_init_full (vtable, FALSE);
5497 if (ex) {
5498 *jit_ex = ex;
5499 return NULL;
5500 }
5501 return code;
5502 }
5503
5504 static gpointer
5505 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex)
5506 {
5507 MonoDomain *target_domain, *domain = mono_domain_get ();
5508 MonoJitInfo *info;
5509 gpointer code, p;
5510 MonoJitICallInfo *callinfo = NULL;
5511
5512 /*
5513 * ICALL wrappers are handled specially, since there is only one copy of them
5514 * shared by all appdomains.
5515 */
5516 if ((method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) && (strstr (method->name, "__icall_wrapper_") == method->name)) {
5517 const char *icall_name;
5518
5519 icall_name = method->name + strlen ("__icall_wrapper_");
5520 g_assert (icall_name);
5521 callinfo = mono_find_jit_icall_by_name (icall_name);
5522 g_assert (callinfo);
5523
5524 /* Must be domain neutral since there is only one copy */
5525 opt |= MONO_OPT_SHARED;
5526 }
5527
5528 if (method->dynamic)
5529 opt &= ~MONO_OPT_SHARED;
5530
5531 /* These methods can become invalid when a domain is unloaded */
5532 if (method->klass->image != mono_get_corlib () || method->is_inflated)
5533 opt &= ~MONO_OPT_SHARED;
5534
5535 if (opt & MONO_OPT_SHARED)
5536 target_domain = mono_get_root_domain ();
5537 else
5538 target_domain = domain;
5539
5540 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
5541 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
5542
5543 g_assert (info);
5544 if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
5545 method = info->d.synchronized_inner.method;
5546 }
5547
5548 info = lookup_method (target_domain, method);
5549 if (info) {
5550 /* We can't use a domain specific method in another domain */
5551 if (! ((domain != target_domain) && !info->domain_neutral)) {
5552 MonoVTable *vtable;
5553 MonoException *tmpEx;
5554
5555 mono_jit_stats.methods_lookups++;
5556 vtable = mono_class_vtable (domain, method->klass);
5557 g_assert (vtable);
5558 tmpEx = mono_runtime_class_init_full (vtable, ex == NULL);
5559 if (tmpEx) {
5560 *ex = tmpEx;
5561 return NULL;
5562 }
5563 return mono_create_ftnptr (target_domain, info->code_start);
5564 }
5565 }
5566
5567 code = mono_jit_compile_method_inner (method, target_domain, opt, ex);
5568 if (!code)
5569 return NULL;
5570
5571 p = mono_create_ftnptr (target_domain, code);
5572
5573 if (callinfo) {
5574 /*mono_register_jit_icall_wrapper takes the loader lock, so we take it on the outside. */
5575 mono_loader_lock ();
5576 mono_jit_lock ();
5577 if (!callinfo->wrapper) {
5578 callinfo->wrapper = p;
5579 mono_register_jit_icall_wrapper (callinfo, p);
5580 mono_debug_add_icall_wrapper (method, callinfo);
5581 }
5582 mono_jit_unlock ();
5583 mono_loader_unlock ();
5584 }
5585
5586 return p;
5587 }
5588
5589 gpointer
5590 mono_jit_compile_method (MonoMethod *method)
5591 {
5592 MonoException *ex = NULL;
5593 gpointer code;
5594
5595 code = mono_jit_compile_method_with_opt (method, default_opt, &ex);
5596 if (!code) {
5597 g_assert (ex);
5598 mono_raise_exception (ex);
5599 }
5600
5601 return code;
5602 }
5603
5604 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
5605 static void
5606 invalidated_delegate_trampoline (char *desc)
5607 {
5608 g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
5609 "See http://www.go-mono.com/delegate.html for an explanation and ways to fix this.",
5610 desc);
5611 }
5612 #endif
5613
5614 /*
5615 * mono_jit_free_method:
5616 *
5617 * Free all memory allocated by the JIT for METHOD.
5618 */
5619 static void
5620 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
5621 {
5622 MonoJitDynamicMethodInfo *ji;
5623 gboolean destroy = TRUE;
5624 GHashTableIter iter;
5625 MonoJumpList *jlist;
5626
5627 g_assert (method->dynamic);
5628
5629 mono_domain_lock (domain);
5630 ji = mono_dynamic_code_hash_lookup (domain, method);
5631 mono_domain_unlock (domain);
5632
5633 if (!ji)
5634 return;
5635
5636 mono_debug_remove_method (method, domain);
5637
5638 mono_domain_lock (domain);
5639 g_hash_table_remove (domain_jit_info (domain)->dynamic_code_hash, method);
5640 mono_internal_hash_table_remove (&domain->jit_code_hash, method);
5641 g_hash_table_remove (domain_jit_info (domain)->jump_trampoline_hash, method);
5642 g_hash_table_remove (domain_jit_info (domain)->runtime_invoke_hash, method);
5643
5644 /* Remove jump targets in this method */
5645 g_hash_table_iter_init (&iter, domain_jit_info (domain)->jump_target_hash);
5646 while (g_hash_table_iter_next (&iter, NULL, (void**)&jlist)) {
5647 GSList *tmp, *remove;
5648
5649 remove = NULL;
5650 for (tmp = jlist->list; tmp; tmp = tmp->next) {
5651 guint8 *ip = tmp->data;
5652
5653 if (ip >= (guint8*)ji->ji->code_start && ip < (guint8*)ji->ji->code_start + ji->ji->code_size)
5654 remove = g_slist_prepend (remove, tmp);
5655 }
5656 for (tmp = remove; tmp; tmp = tmp->next) {
5657 jlist->list = g_slist_delete_link (jlist->list, tmp->data);
5658 }
5659 g_slist_free (remove);
5660 }
5661
5662 mono_domain_unlock (domain);
5663
5664 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
5665 if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
5666 /*
5667 * Instead of freeing the code, change it to call an error routine
5668 * so people can fix their code.
5669 */
5670 char *type = mono_type_full_name (&method->klass->byval_arg);
5671 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
5672
5673 g_free (type);
5674 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
5675 destroy = FALSE;
5676 }
5677 #endif
5678
5679 /*
5680 * This needs to be done before freeing code_mp, since the code address is the
5681 * key in the table, so if we free the code_mp first, another thread can grab the
5682 * same code address and replace our entry in the table.
5683 */
5684 mono_jit_info_table_remove (domain, ji->ji);
5685
5686 if (destroy)
5687 mono_code_manager_destroy (ji->code_mp);
5688 g_free (ji);
5689 }
5690
5691 gpointer
5692 mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji)
5693 {
5694 MonoDomain *target_domain;
5695 MonoJitInfo *info;
5696
5697 if (default_opt & MONO_OPT_SHARED)
5698 target_domain = mono_get_root_domain ();
5699 else
5700 target_domain = domain;
5701
5702 info = lookup_method (target_domain, method);
5703 if (info) {
5704 /* We can't use a domain specific method in another domain */
5705 if (! ((domain != target_domain) && !info->domain_neutral)) {
5706 mono_jit_stats.methods_lookups++;
5707 if (ji)
5708 *ji = info;
5709 return info->code_start;
5710 }
5711 }
5712
5713 if (ji)
5714 *ji = NULL;
5715 return NULL;
5716 }
5717
5718 gpointer
5719 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
5720 {
5721 return mono_jit_find_compiled_method_with_jit_info (domain, method, NULL);
5722 }
5723
5724 typedef struct {
5725 MonoMethod *method;
5726 gpointer compiled_method;
5727 gpointer runtime_invoke;
5728 MonoVTable *vtable;
5729 MonoDynCallInfo *dyn_call_info;
5730 MonoClass *ret_box_class;
5731 } RuntimeInvokeInfo;
5732
5733 /**
5734 * mono_jit_runtime_invoke:
5735 * @method: the method to invoke
5736 * @obj: this pointer
5737 * @params: array of parameter values.
5738 * @exc: used to catch exceptions objects
5739 */
5740 static MonoObject*
5741 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
5742 {
5743 MonoMethod *invoke;
5744 MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
5745 MonoDomain *domain = mono_domain_get ();
5746 MonoJitDomainInfo *domain_info;
5747 RuntimeInvokeInfo *info, *info2;
5748
5749 if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
5750 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
5751 return NULL;
5752 }
5753
5754 domain_info = domain_jit_info (domain);
5755
5756 mono_domain_lock (domain);
5757 info = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5758 mono_domain_unlock (domain);
5759
5760 if (!info) {
5761 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
5762 /*
5763 * This might be redundant since mono_class_vtable () already does this,
5764 * but keep it just in case for moonlight.
5765 */
5766 mono_class_setup_vtable (method->klass);
5767 if (method->klass->exception_type != MONO_EXCEPTION_NONE) {
5768 if (exc)
5769 *exc = (MonoObject*)mono_class_get_exception_for_failure (method->klass);
5770 else
5771 mono_raise_exception (mono_class_get_exception_for_failure (method->klass));
5772 return NULL;
5773 }
5774 }
5775
5776 info = g_new0 (RuntimeInvokeInfo, 1);
5777
5778 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
5779 info->vtable = mono_class_vtable_full (domain, method->klass, TRUE);
5780 g_assert (info->vtable);
5781
5782 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
5783 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
5784 /*
5785 * Array Get/Set/Address methods. The JIT implements them using inline code
5786 * inside the runtime invoke wrappers, so no need to compile them.
5787 */
5788 info->compiled_method = NULL;
5789 } else {
5790 MonoException *jit_ex = NULL;
5791
5792 info->compiled_method = mono_jit_compile_method_with_opt (method, default_opt, &jit_ex);
5793 if (!info->compiled_method) {
5794 g_free (info);
5795 g_assert (jit_ex);
5796 if (exc) {
5797 *exc = (MonoObject*)jit_ex;
5798 return NULL;
5799 } else {
5800 mono_raise_exception (jit_ex);
5801 }
5802 }
5803
5804 if (mono_method_needs_static_rgctx_invoke (method, FALSE))
5805 info->compiled_method = mono_create_static_rgctx_trampoline (method, info->compiled_method);
5806 }
5807
5808 /*
5809 * We want to avoid AOTing 1000s of runtime-invoke wrappers when running
5810 * in full-aot mode, so we use a slower, but more generic wrapper if
5811 * possible, built on top of the OP_DYN_CALL opcode provided by the JIT.
5812 */
5813 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5814 if (mono_aot_only || debug_options.dyn_runtime_invoke) {
5815 MonoMethodSignature *sig = mono_method_signature (method);
5816 gboolean supported = TRUE;
5817 int i;
5818
5819 if (method->string_ctor)
5820 sig = mono_marshal_get_string_ctor_signature (method);
5821
5822 for (i = 0; i < sig->param_count; ++i) {
5823 MonoType *t = sig->params [i];
5824
5825 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
5826 supported = FALSE;
5827 }
5828
5829 if (method->klass->contextbound || !info->compiled_method)
5830 supported = FALSE;
5831
5832 if (supported)
5833 info->dyn_call_info = mono_arch_dyn_call_prepare (sig);
5834
5835 if (info->dyn_call_info) {
5836 switch (sig->ret->type) {
5837 case MONO_TYPE_VOID:
5838 break;
5839 case MONO_TYPE_I1:
5840 case MONO_TYPE_U1:
5841 case MONO_TYPE_I2:
5842 case MONO_TYPE_U2:
5843 case MONO_TYPE_I4:
5844 case MONO_TYPE_U4:
5845 case MONO_TYPE_I:
5846 case MONO_TYPE_U:
5847 case MONO_TYPE_I8:
5848 case MONO_TYPE_U8:
5849 case MONO_TYPE_BOOLEAN:
5850 case MONO_TYPE_CHAR:
5851 case MONO_TYPE_R4:
5852 case MONO_TYPE_R8:
5853 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5854 break;
5855 case MONO_TYPE_PTR:
5856 info->ret_box_class = mono_defaults.int_class;
5857 break;
5858 case MONO_TYPE_STRING:
5859 case MONO_TYPE_CLASS:
5860 case MONO_TYPE_ARRAY:
5861 case MONO_TYPE_SZARRAY:
5862 case MONO_TYPE_OBJECT:
5863 break;
5864 case MONO_TYPE_GENERICINST:
5865 if (!MONO_TYPE_IS_REFERENCE (sig->ret))
5866 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5867 break;
5868 case MONO_TYPE_VALUETYPE:
5869 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5870 break;
5871 default:
5872 g_assert_not_reached ();
5873 break;
5874 }
5875 }
5876 }
5877 #endif
5878
5879 if (!info->dyn_call_info)
5880 info->runtime_invoke = mono_jit_compile_method (invoke);
5881
5882 mono_domain_lock (domain);
5883 info2 = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5884 if (info2) {
5885 g_free (info);
5886 info = info2;
5887 } else {
5888 g_hash_table_insert (domain_info->runtime_invoke_hash, method, info);
5889 }
5890 mono_domain_unlock (domain);
5891 }
5892
5893 runtime_invoke = info->runtime_invoke;
5894
5895 /*
5896 * We need this here because mono_marshal_get_runtime_invoke can place
5897 * the helper method in System.Object and not the target class.
5898 */
5899 if (exc) {
5900 *exc = (MonoObject*)mono_runtime_class_init_full (info->vtable, FALSE);
5901 if (*exc)
5902 return NULL;
5903 } else {
5904 mono_runtime_class_init (info->vtable);
5905 }
5906
5907 /* The wrappers expect this to be initialized to NULL */
5908 if (exc)
5909 *exc = NULL;
5910
5911 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5912 if (info->dyn_call_info) {
5913 MonoMethodSignature *sig = mono_method_signature (method);
5914 gpointer *args;
5915 static RuntimeInvokeDynamicFunction dyn_runtime_invoke;
5916 int i, pindex;
5917 guint8 buf [128];
5918 guint8 retval [128];
5919
5920 if (!dyn_runtime_invoke) {
5921 invoke = mono_marshal_get_runtime_invoke_dynamic ();
5922 dyn_runtime_invoke = mono_jit_compile_method (invoke);
5923 }
5924
5925 /* Convert the arguments to the format expected by start_dyn_call () */
5926 args = g_alloca ((sig->param_count + sig->hasthis) * sizeof (gpointer));
5927 pindex = 0;
5928 if (sig->hasthis)
5929 args [pindex ++] = &obj;
5930 for (i = 0; i < sig->param_count; ++i) {
5931 MonoType *t = sig->params [i];
5932
5933 if (t->byref) {
5934 args [pindex ++] = &params [i];
5935 } else if (MONO_TYPE_IS_REFERENCE (t) || t->type == MONO_TYPE_PTR) {
5936 args [pindex ++] = &params [i];
5937 } else {
5938 args [pindex ++] = params [i];
5939 }
5940 }
5941
5942 //printf ("M: %s\n", mono_method_full_name (method, TRUE));
5943
5944 mono_arch_start_dyn_call (info->dyn_call_info, (gpointer**)args, retval, buf, sizeof (buf));
5945
5946 dyn_runtime_invoke (buf, exc, info->compiled_method);
5947
5948 mono_arch_finish_dyn_call (info->dyn_call_info, buf);
5949
5950 if (info->ret_box_class)
5951 return mono_value_box (domain, info->ret_box_class, retval);
5952 else
5953 return *(MonoObject**)retval;
5954 }
5955 #endif
5956
5957 return runtime_invoke (obj, params, exc, info->compiled_method);
5958 }
5959
5960 void
5961 SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler)
5962 {
5963 MonoException *exc = NULL;
5964 MonoJitInfo *ji;
5965 #if !(defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32))
5966 void *info = NULL;
5967 #endif
5968 GET_CONTEXT;
5969
5970 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
5971
5972 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
5973 if (mono_arch_is_int_overflow (ctx, info))
5974 /*
5975 * The spec says this throws ArithmeticException, but MS throws the derived
5976 * OverflowException.
5977 */
5978 exc = mono_get_exception_overflow ();
5979 else
5980 exc = mono_get_exception_divide_by_zero ();
5981 #else
5982 exc = mono_get_exception_divide_by_zero ();
5983 #endif
5984
5985 if (!ji) {
5986 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5987 return;
5988
5989 mono_handle_native_sigsegv (SIGSEGV, ctx);
5990 }
5991
5992 mono_arch_handle_exception (ctx, exc);
5993 }
5994
5995 void
5996 SIG_HANDLER_SIGNATURE (mono_sigill_signal_handler)
5997 {
5998 MonoException *exc;
5999 GET_CONTEXT;
6000
6001 exc = mono_get_exception_execution_engine ("SIGILL");
6002
6003 mono_arch_handle_exception (ctx, exc);
6004 }
6005
6006 #if defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32)
6007 #define HAVE_SIG_INFO
6008 #endif
6009
6010 void
6011 SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler)
6012 {
6013 MonoJitInfo *ji;
6014 MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
6015 gpointer fault_addr = NULL;
6016
6017 GET_CONTEXT;
6018
6019 #if defined(MONO_ARCH_SOFT_DEBUG_SUPPORTED) && defined(HAVE_SIG_INFO)
6020 if (mono_arch_is_single_step_event (info, ctx)) {
6021 mono_debugger_agent_single_step_event (ctx);
6022 return;
6023 } else if (mono_arch_is_breakpoint_event (info, ctx)) {
6024 mono_debugger_agent_breakpoint_hit (ctx);
6025 return;
6026 }
6027 #endif
6028
6029 #if !defined(HOST_WIN32) && defined(HAVE_SIG_INFO)
6030 fault_addr = info->si_addr;
6031 if (mono_aot_is_pagefault (info->si_addr)) {
6032 mono_aot_handle_pagefault (info->si_addr);
6033 return;
6034 }
6035 #endif
6036
6037 /* The thread might no be registered with the runtime */
6038 if (!mono_domain_get () || !jit_tls) {
6039 if (mono_chain_signal (SIG_HANDLER_PARAMS))
6040 return;
6041 mono_handle_native_sigsegv (SIGSEGV, ctx);
6042 }
6043
6044 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
6045
6046 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
6047 if (mono_handle_soft_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr))
6048 return;
6049
6050 #ifdef MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX
6051 /* info->si_addr seems to be NULL on some kernels when handling stack overflows */
6052 fault_addr = info->si_addr;
6053 if (fault_addr == NULL) {
6054 MonoContext mctx;
6055
6056 mono_arch_sigctx_to_monoctx (ctx, &mctx);
6057
6058 fault_addr = MONO_CONTEXT_GET_SP (&mctx);
6059 }
6060 #endif
6061
6062 if (jit_tls->stack_size &&
6063 ABS ((guint8*)fault_addr - ((guint8*)jit_tls->end_of_stack - jit_tls->stack_size)) < 8192 * sizeof (gpointer)) {
6064 /*
6065 * The hard-guard page has been hit: there is not much we can do anymore
6066 * Print a hopefully clear message and abort.
6067 */
6068 mono_handle_hard_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr);
6069 g_assert_not_reached ();
6070 } else {
6071 /* The original handler might not like that it is executed on an altstack... */
6072 if (!ji && mono_chain_signal (SIG_HANDLER_PARAMS))
6073 return;
6074
6075 mono_arch_handle_altstack_exception (ctx, info->si_addr, FALSE);
6076 }
6077 #else
6078
6079 if (!ji) {
6080 if (mono_chain_signal (SIG_HANDLER_PARAMS))
6081 return;
6082
6083 mono_handle_native_sigsegv (SIGSEGV, ctx);
6084 }
6085
6086 mono_arch_handle_exception (ctx, NULL);
6087 #endif
6088 }
6089
6090 void
6091 SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler)
6092 {
6093 MonoException *exc;
6094 GET_CONTEXT;
6095
6096 exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
6097
6098 mono_arch_handle_exception (ctx, exc);
6099 }
6100
6101 /* mono_jit_create_remoting_trampoline:
6102 * @method: pointer to the method info
6103 *
6104 * Creates a trampoline which calls the remoting functions. This
6105 * is used in the vtable of transparent proxies.
6106 *
6107 * Returns: a pointer to the newly created code
6108 */
6109 static gpointer
6110 mono_jit_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
6111 {
6112 MonoMethod *nm;
6113 guint8 *addr = NULL;
6114
6115 if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && mono_method_signature (method)->generic_param_count) {
6116 return mono_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
6117 domain, NULL);
6118 }
6119
6120 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
6121 (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
6122 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
6123 addr = mono_compile_method (nm);
6124 } else {
6125 addr = mono_compile_method (method);
6126 }
6127 return mono_get_addr_from_ftnptr (addr);
6128 }
6129
6130 static gpointer *vtable_trampolines;
6131 static int vtable_trampolines_size;
6132
6133 gpointer
6134 mini_get_vtable_trampoline (int slot_index)
6135 {
6136 int index = slot_index + MONO_IMT_SIZE;
6137
6138 g_assert (slot_index >= - MONO_IMT_SIZE);
6139 if (!vtable_trampolines || slot_index + MONO_IMT_SIZE >= vtable_trampolines_size) {
6140 mono_jit_lock ();
6141 if (!vtable_trampolines || index >= vtable_trampolines_size) {
6142 int new_size;
6143 gpointer new_table;
6144
6145 new_size = vtable_trampolines_size ? vtable_trampolines_size * 2 : 128;
6146 while (new_size <= index)
6147 new_size *= 2;
6148 new_table = g_new0 (gpointer, new_size);
6149
6150 if (vtable_trampolines)
6151 memcpy (new_table, vtable_trampolines, vtable_trampolines_size * sizeof (gpointer));
6152 g_free (vtable_trampolines);
6153 mono_memory_barrier ();
6154 vtable_trampolines = new_table;
6155 vtable_trampolines_size = new_size;
6156 }
6157 mono_jit_unlock ();
6158 }
6159
6160 if (!vtable_trampolines [index])
6161 vtable_trampolines [index] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot_index), MONO_TRAMPOLINE_VCALL, mono_get_root_domain (), NULL);
6162 return vtable_trampolines [index];
6163 }
6164
6165 static gpointer
6166 mini_get_imt_trampoline (int slot_index)
6167 {
6168 return mini_get_vtable_trampoline (slot_index - MONO_IMT_SIZE);
6169 }
6170
6171 static void
6172 mini_parse_debug_options (void)
6173 {
6174 char *options = getenv ("MONO_DEBUG");
6175 gchar **args, **ptr;
6176
6177 if (!options)
6178 return;
6179
6180 args = g_strsplit (options, ",", -1);
6181
6182 for (ptr = args; ptr && *ptr; ptr++) {
6183 const char *arg = *ptr;
6184
6185 if (!strcmp (arg, "handle-sigint"))
6186 debug_options.handle_sigint = TRUE;
6187 else if (!strcmp (arg, "keep-delegates"))
6188 debug_options.keep_delegates = TRUE;
6189 else if (!strcmp (arg, "reverse-pinvoke-exceptions"))
6190 debug_options.reverse_pinvoke_exceptions = TRUE;
6191 else if (!strcmp (arg, "collect-pagefault-stats"))
6192 debug_options.collect_pagefault_stats = TRUE;
6193 else if (!strcmp (arg, "break-on-unverified"))
6194 debug_options.break_on_unverified = TRUE;
6195 else if (!strcmp (arg, "no-gdb-backtrace"))
6196 debug_options.no_gdb_backtrace = TRUE;
6197 else if (!strcmp (arg, "suspend-on-sigsegv"))
6198 debug_options.suspend_on_sigsegv = TRUE;
6199 else if (!strcmp (arg, "suspend-on-unhandled"))
6200 debug_options.suspend_on_unhandled = TRUE;
6201 else if (!strcmp (arg, "dont-free-domains"))
6202 mono_dont_free_domains = TRUE;
6203 else if (!strcmp (arg, "dyn-runtime-invoke"))
6204 debug_options.dyn_runtime_invoke = TRUE;
6205 else if (!strcmp (arg, "gdb"))
6206 debug_options.gdb = TRUE;
6207 else if (!strcmp (arg, "explicit-null-checks"))
6208 debug_options.explicit_null_checks = TRUE;
6209 else if (!strcmp (arg, "gen-seq-points"))
6210 debug_options.gen_seq_points = TRUE;
6211 else if (!strcmp (arg, "init-stacks"))
6212 debug_options.init_stacks = TRUE;
6213 else if (!strcmp (arg, "casts"))
6214 debug_options.better_cast_details = TRUE;
6215 else if (!strcmp (arg, "soft-breakpoints"))
6216 debug_options.soft_breakpoints = TRUE;
6217 else {
6218 fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
6219 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");
6220 exit (1);
6221 }
6222 }
6223
6224 g_strfreev (args);
6225 }
6226
6227 MonoDebugOptions *
6228 mini_get_debug_options (void)
6229 {
6230 return &debug_options;
6231 }
6232
6233 static gpointer
6234 mini_create_ftnptr (MonoDomain *domain, gpointer addr)
6235 {
6236 #if !defined(__ia64__) && !defined(__ppc64__) && !defined(__powerpc64__)
6237 return addr;
6238 #else
6239
6240 gpointer* desc = NULL;
6241
6242 if ((desc = g_hash_table_lookup (domain->ftnptrs_hash, addr)))
6243 return desc;
6244 # ifdef __ia64__
6245 desc = mono_domain_code_reserve (domain, 2 * sizeof (gpointer));
6246
6247 desc [0] = addr;
6248 desc [1] = NULL;
6249 # elif defined(__ppc64__) || defined(__powerpc64__)
6250 gpointer *desc;
6251
6252 desc = mono_domain_alloc0 (domain, 3 * sizeof (gpointer));
6253
6254 desc [0] = addr;
6255 desc [1] = NULL;
6256 desc [2] = NULL;
6257 # endif
6258 g_hash_table_insert (domain->ftnptrs_hash, addr, desc);
6259 return desc;
6260 #endif
6261 }
6262
6263 static gpointer
6264 mini_get_addr_from_ftnptr (gpointer descr)
6265 {
6266 #if defined(__ia64__) || defined(__ppc64__) || defined(__powerpc64__)
6267 return *(gpointer*)descr;
6268 #else
6269 return descr;
6270 #endif
6271 }
6272
6273 static void
6274 register_jit_stats (void)
6275 {
6276 mono_counters_register ("Compiled methods", MONO_COUNTER_JIT | MONO_COUNTER_WORD, &mono_jit_stats.methods_compiled);
6277 mono_counters_register ("Methods from AOT", MONO_COUNTER_JIT | MONO_COUNTER_WORD, &mono_jit_stats.methods_aot);
6278 mono_counters_register ("Methods JITted using mono JIT", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_without_llvm);
6279 mono_counters_register ("Methods JITted using LLVM", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_with_llvm);
6280 mono_counters_register ("Total time spent JITting (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_time);
6281 mono_counters_register ("Basic blocks", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.basic_blocks);
6282 mono_counters_register ("Max basic blocks", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.max_basic_blocks);
6283 mono_counters_register ("Allocated vars", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocate_var);
6284 mono_counters_register ("Code reallocs", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.code_reallocs);
6285 mono_counters_register ("Allocated code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocated_code_size);
6286 mono_counters_register ("Inlineable methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.inlineable_methods);
6287 mono_counters_register ("Inlined methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.inlined_methods);
6288 mono_counters_register ("Regvars", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.regvars);
6289 mono_counters_register ("Locals stack size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.locals_stack_size);
6290 mono_counters_register ("Method cache lookups", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_lookups);
6291 mono_counters_register ("Compiled CIL code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.cil_code_size);
6292 mono_counters_register ("Native code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.native_code_size);
6293 }
6294
6295 static void runtime_invoke_info_free (gpointer value);
6296
6297 static void
6298 mini_create_jit_domain_info (MonoDomain *domain)
6299 {
6300 MonoJitDomainInfo *info = g_new0 (MonoJitDomainInfo, 1);
6301
6302 info->class_init_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6303 info->jump_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6304 info->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6305 info->delegate_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6306 info->llvm_vcall_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
6307 info->runtime_invoke_hash = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, runtime_invoke_info_free);
6308 info->seq_points = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, g_free);
6309 info->arch_seq_points = g_hash_table_new (mono_aligned_addr_hash, NULL);
6310 info->jump_target_hash = g_hash_table_new (NULL, NULL);
6311
6312 domain->runtime_info = info;
6313 }
6314
6315 static void
6316 delete_jump_list (gpointer key, gpointer value, gpointer user_data)
6317 {
6318 MonoJumpList *jlist = value;
6319 g_slist_free (jlist->list);
6320 }
6321
6322 static void
6323 dynamic_method_info_free (gpointer key, gpointer value, gpointer user_data)
6324 {
6325 MonoJitDynamicMethodInfo *di = value;
6326 mono_code_manager_destroy (di->code_mp);
6327 g_free (di);
6328 }
6329
6330 static void
6331 runtime_invoke_info_free (gpointer value)
6332 {
6333 RuntimeInvokeInfo *info = (RuntimeInvokeInfo*)value;
6334
6335 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
6336 if (info->dyn_call_info)
6337 mono_arch_dyn_call_free (info->dyn_call_info);
6338 #endif
6339 g_free (info);
6340 }
6341
6342 static void
6343 mini_free_jit_domain_info (MonoDomain *domain)
6344 {
6345 MonoJitDomainInfo *info = domain_jit_info (domain);
6346
6347 g_hash_table_foreach (info->jump_target_hash, delete_jump_list, NULL);
6348 g_hash_table_destroy (info->jump_target_hash);
6349 if (info->jump_target_got_slot_hash) {
6350 g_hash_table_foreach (info->jump_target_got_slot_hash, delete_jump_list, NULL);
6351 g_hash_table_destroy (info->jump_target_got_slot_hash);
6352 }
6353 if (info->dynamic_code_hash) {
6354 g_hash_table_foreach (info->dynamic_code_hash, dynamic_method_info_free, NULL);
6355 g_hash_table_destroy (info->dynamic_code_hash);
6356 }
6357 if (info->method_code_hash)
6358 g_hash_table_destroy (info->method_code_hash);
6359 g_hash_table_destroy (info->class_init_trampoline_hash);
6360 g_hash_table_destroy (info->jump_trampoline_hash);
6361 g_hash_table_destroy (info->jit_trampoline_hash);
6362 g_hash_table_destroy (info->delegate_trampoline_hash);
6363 if (info->static_rgctx_trampoline_hash)
6364 g_hash_table_destroy (info->static_rgctx_trampoline_hash);
6365 g_hash_table_destroy (info->llvm_vcall_trampoline_hash);
6366 g_hash_table_destroy (info->runtime_invoke_hash);
6367 g_hash_table_destroy (info->seq_points);
6368 g_hash_table_destroy (info->arch_seq_points);
6369
6370 if (info->agent_info)
6371 mono_debugger_agent_free_domain_info (domain);
6372
6373 g_free (domain->runtime_info);
6374 domain->runtime_info = NULL;
6375 }
6376
6377 MonoDomain *
6378 mini_init (const char *filename, const char *runtime_version)
6379 {
6380 MonoDomain *domain;
6381 MonoRuntimeCallbacks callbacks;
6382 MonoThreadInfoRuntimeCallbacks ticallbacks;
6383
6384 MONO_PROBE_VES_INIT_BEGIN ();
6385
6386 #if defined(__linux__) && !defined(__native_client__)
6387 if (access ("/proc/self/maps", F_OK) != 0) {
6388 g_print ("Mono requires /proc to be mounted.\n");
6389 exit (1);
6390 }
6391 #endif
6392
6393 /* Happens when using the embedding interface */
6394 if (!default_opt_set)
6395 default_opt = mono_parse_default_optimizations (NULL);
6396
6397 InitializeCriticalSection (&jit_mutex);
6398
6399 #ifdef MONO_DEBUGGER_SUPPORTED
6400 if (mini_debug_running_inside_mdb ())
6401 mini_debugger_init ();
6402 #endif
6403
6404 #ifdef MONO_HAVE_FAST_TLS
6405 MONO_FAST_TLS_INIT (mono_jit_tls);
6406 MONO_FAST_TLS_INIT (mono_lmf_addr);
6407 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
6408 MONO_FAST_TLS_INIT (mono_lmf);
6409 #endif
6410 #endif
6411
6412 #ifdef MONO_ARCH_HAVE_TLS_GET
6413 mono_runtime_set_has_tls_get (MONO_ARCH_HAVE_TLS_GET);
6414 #else
6415 mono_runtime_set_has_tls_get (FALSE);
6416 #endif
6417
6418 if (!global_codeman)
6419 global_codeman = mono_code_manager_new ();
6420 jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
6421
6422 memset (&callbacks, 0, sizeof (callbacks));
6423 callbacks.create_ftnptr = mini_create_ftnptr;
6424 callbacks.get_addr_from_ftnptr = mini_get_addr_from_ftnptr;
6425 callbacks.get_runtime_build_info = mono_get_runtime_build_info;
6426 callbacks.set_cast_details = mono_set_cast_details;
6427 callbacks.debug_log = mono_debugger_agent_debug_log;
6428 callbacks.debug_log_is_enabled = mono_debugger_agent_debug_log_is_enabled;
6429
6430 #ifdef MONO_ARCH_HAVE_IMT
6431 if (mono_use_imt) {
6432 callbacks.get_vtable_trampoline = mini_get_vtable_trampoline;
6433 callbacks.get_imt_trampoline = mini_get_imt_trampoline;
6434 }
6435 #endif
6436
6437 mono_install_callbacks (&callbacks);
6438
6439 memset (&ticallbacks, 0, sizeof (ticallbacks));
6440 ticallbacks.setup_async_callback = mono_setup_async_callback;
6441 ticallbacks.thread_state_init_from_sigctx = mono_thread_state_init_from_sigctx;
6442 ticallbacks.thread_state_init_from_handle = mono_thread_state_init_from_handle;
6443
6444 mono_threads_runtime_init (&ticallbacks);
6445
6446
6447 if (getenv ("MONO_DEBUG") != NULL)
6448 mini_parse_debug_options ();
6449
6450 mono_arch_cpu_init ();
6451
6452 mono_arch_init ();
6453
6454 mono_unwind_init ();
6455
6456 if (getenv ("MONO_XDEBUG")) {
6457 char *xdebug_opts = getenv ("MONO_XDEBUG");
6458 mono_xdebug_init (xdebug_opts);
6459 /* So methods for multiple domains don't have the same address */
6460 mono_dont_free_domains = TRUE;
6461 mono_using_xdebug = TRUE;
6462 } else if (mini_get_debug_options ()->gdb) {
6463 mono_xdebug_init ((char*)"gdb");
6464 mono_dont_free_domains = TRUE;
6465 mono_using_xdebug = TRUE;
6466 }
6467
6468 #ifdef ENABLE_LLVM
6469 if (mono_use_llvm) {
6470 if (!mono_llvm_load (NULL)) {
6471 mono_use_llvm = FALSE;
6472 fprintf (stderr, "Mono Warning: llvm support could not be loaded.\n");
6473 }
6474 }
6475 if (mono_use_llvm)
6476 mono_llvm_init ();
6477 #endif
6478
6479 mono_trampolines_init ();
6480
6481 if (!g_thread_supported ())
6482 g_thread_init (NULL);
6483
6484 mono_native_tls_alloc (&mono_jit_tls_id, NULL);
6485 setup_jit_tls_data ((gpointer)-1, mono_thread_abort);
6486
6487 if (default_opt & MONO_OPT_AOT)
6488 mono_aot_init ();
6489
6490 mono_debugger_agent_init ();
6491
6492 #ifdef MONO_ARCH_GSHARED_SUPPORTED
6493 mono_set_generic_sharing_supported (TRUE);
6494 #endif
6495
6496 #ifndef MONO_CROSS_COMPILE
6497 mono_runtime_install_handlers ();
6498 #endif
6499 mono_threads_install_cleanup (mini_thread_cleanup);
6500
6501 #ifdef MONO_ARCH_HAVE_NOTIFY_PENDING_EXC
6502 // This is experimental code so provide an env var to switch it off
6503 if (getenv ("MONO_DISABLE_PENDING_EXCEPTIONS")) {
6504 printf ("MONO_DISABLE_PENDING_EXCEPTIONS env var set.\n");
6505 } else {
6506 check_for_pending_exc = FALSE;
6507 mono_threads_install_notify_pending_exc (mono_arch_notify_pending_exc);
6508 }
6509 #endif
6510
6511 #define JIT_TRAMPOLINES_WORK
6512 #ifdef JIT_TRAMPOLINES_WORK
6513 mono_install_compile_method (mono_jit_compile_method);
6514 mono_install_free_method (mono_jit_free_method);
6515 mono_install_trampoline (mono_create_jit_trampoline);
6516 mono_install_jump_trampoline (mono_create_jump_trampoline);
6517 mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
6518 mono_install_delegate_trampoline (mono_create_delegate_trampoline);
6519 mono_install_create_domain_hook (mini_create_jit_domain_info);
6520 mono_install_free_domain_hook (mini_free_jit_domain_info);
6521 #endif
6522 #define JIT_INVOKE_WORKS
6523 #ifdef JIT_INVOKE_WORKS
6524 mono_install_runtime_invoke (mono_jit_runtime_invoke);
6525 #endif
6526 mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
6527 mono_install_get_class_from_name (mono_aot_get_class_from_name);
6528 mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
6529
6530 if (debug_options.collect_pagefault_stats) {
6531 mono_aot_set_make_unreadable (TRUE);
6532 }
6533
6534 if (runtime_version)
6535 domain = mono_init_version (filename, runtime_version);
6536 else
6537 domain = mono_init_from_assembly (filename, filename);
6538
6539 if (mono_aot_only) {
6540 /* This helps catch code allocation requests */
6541 mono_code_manager_set_read_only (domain->code_mp);
6542 mono_marshal_use_aot_wrappers (TRUE);
6543 }
6544
6545 #ifdef MONO_ARCH_HAVE_IMT
6546 if (mono_use_imt) {
6547 if (mono_aot_only)
6548 mono_install_imt_thunk_builder (mono_aot_get_imt_thunk);
6549 else
6550 mono_install_imt_thunk_builder (mono_arch_build_imt_thunk);
6551 }
6552 #endif
6553 /*Init arch tls information only after the metadata side is inited to make sure we see dynamic appdomain tls keys*/
6554 mono_arch_finish_init ();
6555
6556
6557 /* This must come after mono_init () in the aot-only case */
6558 mono_exceptions_init ();
6559
6560 mono_icall_init ();
6561
6562 /* This should come after mono_init () too */
6563 mini_gc_init ();
6564
6565 mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
6566 ves_icall_get_frame_info);
6567 mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
6568 ves_icall_get_trace);
6569 mono_add_internal_call ("System.Exception::get_trace",
6570 ves_icall_System_Exception_get_trace);
6571 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
6572 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
6573 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
6574 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
6575 mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
6576 mono_runtime_install_handlers);
6577
6578 mono_create_helper_signatures ();
6579
6580 register_jit_stats ();
6581
6582 #define JIT_CALLS_WORK
6583 #ifdef JIT_CALLS_WORK
6584 /* Needs to be called here since register_jit_icall depends on it */
6585 mono_marshal_init ();
6586
6587 mono_arch_register_lowlevel_calls ();
6588 register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
6589 register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
6590 register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
6591 register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
6592 register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
6593 register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "ptr ptr", TRUE);
6594 register_icall (mono_jit_set_domain, "mono_jit_set_domain", "void ptr", TRUE);
6595 register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
6596
6597 register_icall (mono_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
6598 register_icall (mono_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
6599 register_icall (mono_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
6600 "void ptr", TRUE);
6601 register_icall (mono_thread_get_undeniable_exception, "mono_thread_get_undeniable_exception", "object", FALSE);
6602 register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
6603 register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
6604 register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
6605 register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
6606
6607 #if defined(__native_client__) || defined(__native_client_codegen__)
6608 register_icall (mono_nacl_gc, "mono_nacl_gc", "void", TRUE);
6609 #endif
6610 /*
6611 * NOTE, NOTE, NOTE, NOTE:
6612 * when adding emulation for some opcodes, remember to also add a dummy
6613 * rule to the burg files, because we need the arity information to be correct.
6614 */
6615 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
6616 mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
6617 mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
6618 mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
6619 mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
6620 mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
6621 mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
6622 mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
6623 #endif
6624
6625 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
6626 mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
6627 mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
6628 mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
6629 #endif
6630
6631 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
6632 mono_register_opcode_emulation (OP_IDIV, "__emul_op_idiv", "int32 int32 int32", mono_idiv, FALSE);
6633 mono_register_opcode_emulation (OP_IDIV_UN, "__emul_op_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
6634 mono_register_opcode_emulation (OP_IREM, "__emul_op_irem", "int32 int32 int32", mono_irem, FALSE);
6635 mono_register_opcode_emulation (OP_IREM_UN, "__emul_op_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
6636 #endif
6637
6638 #ifdef MONO_ARCH_EMULATE_MUL_DIV
6639 mono_register_opcode_emulation (OP_IMUL, "__emul_op_imul", "int32 int32 int32", mono_imul, TRUE);
6640 #endif
6641
6642 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_MUL_OVF)
6643 mono_register_opcode_emulation (OP_IMUL_OVF, "__emul_op_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
6644 mono_register_opcode_emulation (OP_IMUL_OVF_UN, "__emul_op_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
6645 #endif
6646
6647 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_SOFT_FLOAT)
6648 mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, FALSE);
6649 #endif
6650
6651 mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
6652 mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
6653 mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
6654 mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
6655
6656 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
6657 mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
6658 #endif
6659 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
6660 mono_register_opcode_emulation (OP_ICONV_TO_R_UN, "__emul_iconv_to_r_un", "double int32", mono_conv_to_r8_un, FALSE);
6661 #endif
6662 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
6663 mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
6664 #endif
6665 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
6666 mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
6667 #endif
6668 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
6669 mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
6670 #endif
6671 #ifdef MONO_ARCH_EMULATE_FREM
6672 #if defined(__default_codegen__)
6673 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
6674 #elif defined(__native_client_codegen__)
6675 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", mono_fmod, FALSE);
6676 #endif
6677 #endif
6678
6679 #ifdef MONO_ARCH_SOFT_FLOAT
6680 mono_register_opcode_emulation (OP_FSUB, "__emul_fsub", "double double double", mono_fsub, FALSE);
6681 mono_register_opcode_emulation (OP_FADD, "__emul_fadd", "double double double", mono_fadd, FALSE);
6682 mono_register_opcode_emulation (OP_FMUL, "__emul_fmul", "double double double", mono_fmul, FALSE);
6683 mono_register_opcode_emulation (OP_FNEG, "__emul_fneg", "double double", mono_fneg, FALSE);
6684 mono_register_opcode_emulation (OP_ICONV_TO_R8, "__emul_iconv_to_r8", "double int32", mono_conv_to_r8, FALSE);
6685 mono_register_opcode_emulation (OP_ICONV_TO_R4, "__emul_iconv_to_r4", "double int32", mono_conv_to_r4, FALSE);
6686 mono_register_opcode_emulation (OP_FCONV_TO_R4, "__emul_fconv_to_r4", "double double", mono_fconv_r4, FALSE);
6687 mono_register_opcode_emulation (OP_FCONV_TO_I1, "__emul_fconv_to_i1", "int8 double", mono_fconv_i1, FALSE);
6688 mono_register_opcode_emulation (OP_FCONV_TO_I2, "__emul_fconv_to_i2", "int16 double", mono_fconv_i2, FALSE);
6689 mono_register_opcode_emulation (OP_FCONV_TO_I4, "__emul_fconv_to_i4", "int32 double", mono_fconv_i4, FALSE);
6690 mono_register_opcode_emulation (OP_FCONV_TO_U1, "__emul_fconv_to_u1", "uint8 double", mono_fconv_u1, FALSE);
6691 mono_register_opcode_emulation (OP_FCONV_TO_U2, "__emul_fconv_to_u2", "uint16 double", mono_fconv_u2, FALSE);
6692 #if SIZEOF_VOID_P == 4
6693 mono_register_opcode_emulation (OP_FCONV_TO_I, "__emul_fconv_to_i", "int32 double", mono_fconv_i4, FALSE);
6694 #endif
6695
6696 mono_register_opcode_emulation (OP_FBEQ, "__emul_fcmp_eq", "uint32 double double", mono_fcmp_eq, FALSE);
6697 mono_register_opcode_emulation (OP_FBLT, "__emul_fcmp_lt", "uint32 double double", mono_fcmp_lt, FALSE);
6698 mono_register_opcode_emulation (OP_FBGT, "__emul_fcmp_gt", "uint32 double double", mono_fcmp_gt, FALSE);
6699 mono_register_opcode_emulation (OP_FBLE, "__emul_fcmp_le", "uint32 double double", mono_fcmp_le, FALSE);
6700 mono_register_opcode_emulation (OP_FBGE, "__emul_fcmp_ge", "uint32 double double", mono_fcmp_ge, FALSE);
6701 mono_register_opcode_emulation (OP_FBNE_UN, "__emul_fcmp_ne_un", "uint32 double double", mono_fcmp_ne_un, FALSE);
6702 mono_register_opcode_emulation (OP_FBLT_UN, "__emul_fcmp_lt_un", "uint32 double double", mono_fcmp_lt_un, FALSE);
6703 mono_register_opcode_emulation (OP_FBGT_UN, "__emul_fcmp_gt_un", "uint32 double double", mono_fcmp_gt_un, FALSE);
6704 mono_register_opcode_emulation (OP_FBLE_UN, "__emul_fcmp_le_un", "uint32 double double", mono_fcmp_le_un, FALSE);
6705 mono_register_opcode_emulation (OP_FBGE_UN, "__emul_fcmp_ge_un", "uint32 double double", mono_fcmp_ge_un, FALSE);
6706
6707 mono_register_opcode_emulation (OP_FCEQ, "__emul_fcmp_ceq", "uint32 double double", mono_fceq, FALSE);
6708 mono_register_opcode_emulation (OP_FCGT, "__emul_fcmp_cgt", "uint32 double double", mono_fcgt, FALSE);
6709 mono_register_opcode_emulation (OP_FCGT_UN, "__emul_fcmp_cgt_un", "uint32 double double", mono_fcgt_un, FALSE);
6710 mono_register_opcode_emulation (OP_FCLT, "__emul_fcmp_clt", "uint32 double double", mono_fclt, FALSE);
6711 mono_register_opcode_emulation (OP_FCLT_UN, "__emul_fcmp_clt_un", "uint32 double double", mono_fclt_un, FALSE);
6712
6713 register_icall (mono_fload_r4, "mono_fload_r4", "double ptr", FALSE);
6714 register_icall (mono_fstore_r4, "mono_fstore_r4", "void double ptr", FALSE);
6715 register_icall (mono_fload_r4_arg, "mono_fload_r4_arg", "uint32 double", FALSE);
6716 register_icall (mono_isfinite, "mono_isfinite", "uint32 double", FALSE);
6717 #endif
6718
6719 #ifdef COMPRESSED_INTERFACE_BITMAP
6720 register_icall (mono_class_interface_match, "mono_class_interface_match", "uint32 ptr int32", TRUE);
6721 #endif
6722
6723 #if SIZEOF_REGISTER == 4
6724 mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
6725 #endif
6726
6727 /* other jit icalls */
6728 register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
6729 register_icall (mono_class_static_field_address , "mono_class_static_field_address",
6730 "ptr ptr ptr", FALSE);
6731 register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
6732 register_icall (mono_ldtoken_wrapper_generic_shared, "mono_ldtoken_wrapper_generic_shared",
6733 "ptr ptr ptr ptr", FALSE);
6734 register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
6735 register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
6736 register_icall (mono_helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
6737 register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
6738 register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
6739 register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
6740 register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
6741 register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
6742 register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
6743 register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
6744 register_icall (mono_ldvirtfn_gshared, "mono_ldvirtfn_gshared", "ptr object ptr", FALSE);
6745 register_icall (mono_helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
6746 register_icall (mono_helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
6747 register_icall (mono_helper_ldstr_mscorlib, "helper_ldstr_mscorlib", "object int", FALSE);
6748 register_icall (mono_helper_newobj_mscorlib, "helper_newobj_mscorlib", "object int", FALSE);
6749 register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
6750 register_icall (mono_object_castclass, "mono_object_castclass", "object object ptr", FALSE);
6751 register_icall (mono_break, "mono_break", NULL, TRUE);
6752 register_icall (mono_create_corlib_exception_0, "mono_create_corlib_exception_0", "object int", TRUE);
6753 register_icall (mono_create_corlib_exception_1, "mono_create_corlib_exception_1", "object int object", TRUE);
6754 register_icall (mono_create_corlib_exception_2, "mono_create_corlib_exception_2", "object int object object", TRUE);
6755 register_icall (mono_array_new_1, "mono_array_new_1", "object ptr int", FALSE);
6756 register_icall (mono_array_new_2, "mono_array_new_2", "object ptr int int", FALSE);
6757 register_icall (mono_array_new_3, "mono_array_new_3", "object ptr int int int", FALSE);
6758 register_icall (mono_get_native_calli_wrapper, "mono_get_native_calli_wrapper", "ptr ptr ptr ptr", FALSE);
6759 register_icall (mono_resume_unwind, "mono_resume_unwind", "void", TRUE);
6760
6761 register_icall (mono_gc_wbarrier_value_copy_bitmap, "mono_gc_wbarrier_value_copy_bitmap", "void ptr ptr int int", FALSE);
6762
6763 register_icall (mono_object_castclass_with_cache, "mono_object_castclass_with_cache", "object object ptr ptr", FALSE);
6764 register_icall (mono_object_isinst_with_cache, "mono_object_isinst_with_cache", "object object ptr ptr", FALSE);
6765
6766 register_icall (mono_debugger_agent_user_break, "mono_debugger_agent_user_break", "void", FALSE);
6767
6768 #endif
6769
6770 mono_generic_sharing_init ();
6771
6772 #ifdef MONO_ARCH_SIMD_INTRINSICS
6773 mono_simd_intrinsics_init ();
6774 #endif
6775
6776 #if MONO_SUPPORT_TASKLETS
6777 mono_tasklets_init ();
6778 #endif
6779
6780 if (mono_compile_aot)
6781 /*
6782 * Avoid running managed code when AOT compiling, since the platform
6783 * might only support aot-only execution.
6784 */
6785 mono_runtime_set_no_exec (TRUE);
6786
6787 #define JIT_RUNTIME_WORKS
6788 #ifdef JIT_RUNTIME_WORKS
6789 mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
6790 mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
6791 mono_thread_attach (domain);
6792 #endif
6793
6794 mono_profiler_runtime_initialized ();
6795
6796 MONO_PROBE_VES_INIT_END ();
6797
6798 return domain;
6799 }
6800
6801 MonoJitStats mono_jit_stats = {0};
6802
6803 static void
6804 print_jit_stats (void)
6805 {
6806 if (mono_jit_stats.enabled) {
6807 g_print ("Mono Jit statistics\n");
6808 g_print ("Max code size ratio: %.2f (%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
6809 mono_jit_stats.max_ratio_method);
6810 g_print ("Biggest method: %ld (%s)\n", mono_jit_stats.biggest_method_size,
6811 mono_jit_stats.biggest_method);
6812
6813 g_print ("\nCreated object count: %ld\n", mono_stats.new_object_count);
6814 g_print ("Delegates created: %ld\n", mono_stats.delegate_creations);
6815 g_print ("Initialized classes: %ld\n", mono_stats.initialized_class_count);
6816 g_print ("Used classes: %ld\n", mono_stats.used_class_count);
6817 g_print ("Generic vtables: %ld\n", mono_stats.generic_vtable_count);
6818 g_print ("Methods: %ld\n", mono_stats.method_count);
6819 g_print ("Static data size: %ld\n", mono_stats.class_static_data_size);
6820 g_print ("VTable data size: %ld\n", mono_stats.class_vtable_size);
6821 g_print ("Mscorlib mempool size: %d\n", mono_mempool_get_allocated (mono_defaults.corlib->mempool));
6822
6823 g_print ("\nInitialized classes: %ld\n", mono_stats.generic_class_count);
6824 g_print ("Inflated types: %ld\n", mono_stats.inflated_type_count);
6825 g_print ("Generics virtual invokes: %ld\n", mono_jit_stats.generic_virtual_invocations);
6826
6827 g_print ("Sharable generic methods: %ld\n", mono_stats.generics_sharable_methods);
6828 g_print ("Unsharable generic methods: %ld\n", mono_stats.generics_unsharable_methods);
6829 g_print ("Shared generic methods: %ld\n", mono_stats.generics_shared_methods);
6830
6831 g_print ("Dynamic code allocs: %ld\n", mono_stats.dynamic_code_alloc_count);
6832 g_print ("Dynamic code bytes: %ld\n", mono_stats.dynamic_code_bytes_count);
6833 g_print ("Dynamic code frees: %ld\n", mono_stats.dynamic_code_frees_count);
6834
6835 g_print ("IMT tables size: %ld\n", mono_stats.imt_tables_size);
6836 g_print ("IMT number of tables: %ld\n", mono_stats.imt_number_of_tables);
6837 g_print ("IMT number of methods: %ld\n", mono_stats.imt_number_of_methods);
6838 g_print ("IMT used slots: %ld\n", mono_stats.imt_used_slots);
6839 g_print ("IMT colliding slots: %ld\n", mono_stats.imt_slots_with_collisions);
6840 g_print ("IMT max collisions: %ld\n", mono_stats.imt_max_collisions_in_slot);
6841 g_print ("IMT methods at max col: %ld\n", mono_stats.imt_method_count_when_max_collisions);
6842 g_print ("IMT thunks size: %ld\n", mono_stats.imt_thunks_size);
6843
6844 g_print ("JIT info table inserts: %ld\n", mono_stats.jit_info_table_insert_count);
6845 g_print ("JIT info table removes: %ld\n", mono_stats.jit_info_table_remove_count);
6846 g_print ("JIT info table lookups: %ld\n", mono_stats.jit_info_table_lookup_count);
6847
6848 g_print ("Hazardous pointers: %ld\n", mono_stats.hazardous_pointer_count);
6849 g_print ("Minor GC collections: %ld\n", mono_stats.minor_gc_count);
6850 g_print ("Major GC collections: %ld\n", mono_stats.major_gc_count);
6851 g_print ("Minor GC time in msecs: %lf\n", (double)mono_stats.minor_gc_time_usecs / 1000.0);
6852 g_print ("Major GC time in msecs: %lf\n", (double)mono_stats.major_gc_time_usecs / 1000.0);
6853 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS) {
6854 g_print ("\nDecl security check : %ld\n", mono_jit_stats.cas_declsec_check);
6855 g_print ("LinkDemand (user) : %ld\n", mono_jit_stats.cas_linkdemand);
6856 g_print ("LinkDemand (icall) : %ld\n", mono_jit_stats.cas_linkdemand_icall);
6857 g_print ("LinkDemand (pinvoke) : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
6858 g_print ("LinkDemand (aptc) : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
6859 g_print ("Demand (code gen) : %ld\n", mono_jit_stats.cas_demand_generation);
6860 }
6861
6862 g_free (mono_jit_stats.max_ratio_method);
6863 mono_jit_stats.max_ratio_method = NULL;
6864 g_free (mono_jit_stats.biggest_method);
6865 mono_jit_stats.biggest_method = NULL;
6866 }
6867 }
6868
6869 void
6870 mini_cleanup (MonoDomain *domain)
6871 {
6872 mono_runtime_shutdown_stat_profiler ();
6873
6874 #ifndef DISABLE_COM
6875 cominterop_release_all_rcws ();
6876 #endif
6877
6878 #ifndef MONO_CROSS_COMPILE
6879 mono_runtime_shutdown ();
6880 /*
6881 * mono_runtime_cleanup() and mono_domain_finalize () need to
6882 * be called early since they need the execution engine still
6883 * fully working (mono_domain_finalize may invoke managed finalizers
6884 * and mono_runtime_cleanup will wait for other threads to finish).
6885 */
6886 mono_domain_finalize (domain, 2000);
6887 #endif
6888
6889 /* This accesses metadata so needs to be called before runtime shutdown */
6890 print_jit_stats ();
6891
6892 mono_profiler_shutdown ();
6893
6894 #ifndef MONO_CROSS_COMPILE
6895 mono_runtime_cleanup (domain);
6896 #endif
6897
6898 free_jit_tls_data (mono_native_tls_get_value (mono_jit_tls_id));
6899
6900 mono_icall_cleanup ();
6901
6902 mono_runtime_cleanup_handlers ();
6903
6904 mono_domain_free (domain, TRUE);
6905
6906 mono_debugger_cleanup ();
6907
6908 #ifdef ENABLE_LLVM
6909 if (mono_use_llvm)
6910 mono_llvm_cleanup ();
6911 #endif
6912
6913 mono_aot_cleanup ();
6914
6915 mono_trampolines_cleanup ();
6916
6917 mono_unwind_cleanup ();
6918
6919 if (!mono_dont_free_global_codeman)
6920 mono_code_manager_destroy (global_codeman);
6921 g_hash_table_destroy (jit_icall_name_hash);
6922 g_free (emul_opcode_map);
6923 g_free (emul_opcode_opcodes);
6924 g_free (vtable_trampolines);
6925
6926 mono_arch_cleanup ();
6927
6928 mono_generic_sharing_cleanup ();
6929
6930 mono_cleanup ();
6931
6932 mono_trace_cleanup ();
6933
6934 mono_counters_dump (-1, stdout);
6935
6936 if (mono_inject_async_exc_method)
6937 mono_method_desc_free (mono_inject_async_exc_method);
6938
6939 mono_native_tls_free (mono_jit_tls_id);
6940
6941 DeleteCriticalSection (&jit_mutex);
6942
6943 DeleteCriticalSection (&mono_delegate_section);
6944 }
6945
6946 void
6947 mono_set_defaults (int verbose_level, guint32 opts)
6948 {
6949 mini_verbose = verbose_level;
6950 default_opt = opts;
6951 default_opt_set = TRUE;
6952 }
6953
6954 void
6955 mono_disable_optimizations (guint32 opts)
6956 {
6957 default_opt &= ~opts;
6958 }
6959
6960 void
6961 mono_set_optimizations (guint32 opts)
6962 {
6963 default_opt = opts;
6964 default_opt_set = TRUE;
6965 }
6966
6967 void
6968 mono_set_verbose_level (guint32 level)
6969 {
6970 mini_verbose = level;
6971 }
6972
6973 /**
6974 * mono_get_runtime_build_info:
6975 *
6976 * Return the runtime version + build date in string format.
6977 * The returned string is owned by the caller. The returned string
6978 * format is "VERSION (FULL_VERSION BUILD_DATE)" and build date is optional.
6979 */
6980 char*
6981 mono_get_runtime_build_info (void)
6982 {
6983 if (mono_build_date)
6984 return g_strdup_printf ("%s (%s %s)", VERSION, FULL_VERSION, mono_build_date);
6985 else
6986 return g_strdup_printf ("%s (%s)", VERSION, FULL_VERSION);
6987 }
6988
6989 static void
6990 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
6991 {
6992 GHashTable *assemblies = (GHashTable*)user_data;
6993 MonoImage *image = mono_assembly_get_image (ass);
6994 MonoMethod *method, *invoke;
6995 int i, count = 0;
6996
6997 if (g_hash_table_lookup (assemblies, ass))
6998 return;
6999
7000 g_hash_table_insert (assemblies, ass, ass);
7001
7002 if (mini_verbose > 0)
7003 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
7004
7005 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
7006 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
7007 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
7008 continue;
7009
7010 count++;
7011 if (mini_verbose > 1) {
7012 char * desc = mono_method_full_name (method, TRUE);
7013 g_print ("Compiling %d %s\n", count, desc);
7014 g_free (desc);
7015 }
7016 mono_compile_method (method);
7017 if (strcmp (method->name, "Finalize") == 0) {
7018 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
7019 mono_compile_method (invoke);
7020 }
7021 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
7022 invoke = mono_marshal_get_remoting_invoke_with_check (method);
7023 mono_compile_method (invoke);
7024 }
7025 }
7026
7027 /* Load and precompile referenced assemblies as well */
7028 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
7029 mono_assembly_load_reference (image, i);
7030 if (image->references [i])
7031 mono_precompile_assembly (image->references [i], assemblies);
7032 }
7033 }
7034
7035 void mono_precompile_assemblies ()
7036 {
7037 GHashTable *assemblies = g_hash_table_new (NULL, NULL);
7038
7039 mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
7040
7041 g_hash_table_destroy (assemblies);
7042 }
7043
7044 #ifndef DISABLE_JIT
7045
7046 void*
7047 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) {
7048 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
7049 }
7050
7051 void
7052 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
7053 {
7054 TryBlockHole *hole = mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
7055 hole->clause = clause;
7056 hole->start_offset = start - cfg->native_code;
7057 hole->basic_block = bb;
7058
7059 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
7060 }
7061
7062 void
7063 mono_cfg_set_exception (MonoCompile *cfg, int type)
7064 {
7065 cfg->exception_type = type;
7066 }
7067
7068 #endif
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