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Merge pull request #2671 from lambdageek/dev/monoerror-mono_runtime_class_init
[mono-project.git] / mono / mini / mini-runtime.c
blob4fd824e1286846a507fa028bc331ec9ad947e3f9
1 /*
2 * mini-runtime.c: Runtime code for the JIT
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 2011-2015 Xamarin, Inc (http://www.xamarin.com)
11 */
12
13 #include <config.h>
14 #ifdef HAVE_ALLOCA_H
15 #include <alloca.h>
16 #endif
17 #ifdef HAVE_UNISTD_H
18 #include <unistd.h>
19 #endif
20 #include <math.h>
21 #ifdef HAVE_SYS_TIME_H
22 #include <sys/time.h>
23 #endif
24 #ifdef HAVE_SIGNAL_H
25 #include <signal.h>
26 #endif
27
28 #include <mono/utils/memcheck.h>
29
30 #include <mono/metadata/assembly.h>
31 #include <mono/metadata/loader.h>
32 #include <mono/metadata/tabledefs.h>
33 #include <mono/metadata/class.h>
34 #include <mono/metadata/object.h>
35 #include <mono/metadata/tokentype.h>
36 #include <mono/metadata/tabledefs.h>
37 #include <mono/metadata/threads.h>
38 #include <mono/metadata/appdomain.h>
39 #include <mono/metadata/debug-helpers.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-internals.h>
46 #include <mono/metadata/threads-types.h>
47 #include <mono/metadata/mempool-internals.h>
48 #include <mono/metadata/attach.h>
49 #include <mono/metadata/runtime.h>
50 #include <mono/metadata/reflection-internals.h>
51 #include <mono/metadata/monitor.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-error-internals.h>
56 #include <mono/utils/mono-logger-internals.h>
57 #include <mono/utils/mono-mmap.h>
58 #include <mono/utils/mono-path.h>
59 #include <mono/utils/mono-tls.h>
60 #include <mono/utils/mono-hwcap.h>
61 #include <mono/utils/dtrace.h>
62 #include <mono/utils/mono-signal-handler.h>
63 #include <mono/utils/mono-threads.h>
64 #include <mono/utils/checked-build.h>
65 #include <mono/io-layer/io-layer.h>
66
67 #include "mini.h"
68 #include "seq-points.h"
69 #include "tasklets.h"
70 #include <string.h>
71 #include <ctype.h>
72 #include "trace.h"
73 #include "version.h"
74
75 #include "jit-icalls.h"
76
77 #include "mini-gc.h"
78 #include "mini-llvm.h"
79 #include "debugger-agent.h"
80
81 #ifdef MONO_ARCH_LLVM_SUPPORTED
82 #ifdef ENABLE_LLVM
83 #include "mini-llvm-cpp.h"
84 #endif
85 #endif
86
87 static guint32 default_opt = 0;
88 static gboolean default_opt_set = FALSE;
89
90 MonoNativeTlsKey mono_jit_tls_id;
91
92 #ifdef MONO_HAVE_FAST_TLS
93 MONO_FAST_TLS_DECLARE(mono_jit_tls);
94 #endif
95
96 gboolean mono_compile_aot = FALSE;
97 /* If this is set, no code is generated dynamically, everything is taken from AOT files */
98 gboolean mono_aot_only = FALSE;
99 /* Same as mono_aot_only, but only LLVM compiled code is used, no trampolines */
100 gboolean mono_llvm_only = FALSE;
101 MonoAotMode mono_aot_mode = MONO_AOT_MODE_NONE;
102
103 const char *mono_build_date;
104 gboolean mono_do_signal_chaining;
105 gboolean mono_do_crash_chaining;
106 int mini_verbose = 0;
107
108 /*
109 * This flag controls whenever the runtime uses LLVM for JIT compilation, and whenever
110 * it can load AOT code compiled by LLVM.
111 */
112 gboolean mono_use_llvm = FALSE;
113
114 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
115 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
116 static mono_mutex_t jit_mutex;
117
118 static MonoCodeManager *global_codeman;
119
120 MonoDebugOptions debug_options;
121
122 #ifdef VALGRIND_JIT_REGISTER_MAP
123 int valgrind_register;
124 #endif
125
126 static GSList *tramp_infos;
127
128 static void register_icalls (void);
129
130 gboolean
131 mono_running_on_valgrind (void)
132 {
133 #ifndef HOST_WIN32
134 if (RUNNING_ON_VALGRIND){
135 #ifdef VALGRIND_JIT_REGISTER_MAP
136 valgrind_register = TRUE;
137 #endif
138 return TRUE;
139 } else
140 #endif
141 return FALSE;
142 }
143
144 typedef struct {
145 void *ip;
146 MonoMethod *method;
147 } FindTrampUserData;
148
149 static void
150 find_tramp (gpointer key, gpointer value, gpointer user_data)
151 {
152 FindTrampUserData *ud = (FindTrampUserData*)user_data;
153
154 if (value == ud->ip)
155 ud->method = (MonoMethod*)key;
156 }
157
158 /* debug function */
159 G_GNUC_UNUSED static char*
160 get_method_from_ip (void *ip)
161 {
162 MonoJitInfo *ji;
163 char *method;
164 char *res;
165 MonoDomain *domain = mono_domain_get ();
166 MonoDebugSourceLocation *location;
167 FindTrampUserData user_data;
168
169 if (!domain)
170 domain = mono_get_root_domain ();
171
172 ji = mono_jit_info_table_find_internal (domain, (char *)ip, TRUE, TRUE);
173 if (!ji) {
174 user_data.ip = ip;
175 user_data.method = NULL;
176 mono_domain_lock (domain);
177 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
178 mono_domain_unlock (domain);
179 if (user_data.method) {
180 char *mname = mono_method_full_name (user_data.method, TRUE);
181 res = g_strdup_printf ("<%p - JIT trampoline for %s>", ip, mname);
182 g_free (mname);
183 return res;
184 }
185 else
186 return NULL;
187 } else if (ji->is_trampoline) {
188 res = g_strdup_printf ("<%p - %s trampoline>", ip, ((MonoTrampInfo*)ji->d.tramp_info)->name);
189 return res;
190 }
191
192 method = mono_method_full_name (jinfo_get_method (ji), TRUE);
193 /* FIXME: unused ? */
194 location = mono_debug_lookup_source_location (jinfo_get_method (ji), (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
195
196 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);
197
198 mono_debug_free_source_location (location);
199 g_free (method);
200
201 return res;
202 }
203
204 /**
205 * mono_pmip:
206 * @ip: an instruction pointer address
207 *
208 * This method is used from a debugger to get the name of the
209 * method at address @ip. This routine is typically invoked from
210 * a debugger like this:
211 *
212 * (gdb) print mono_pmip ($pc)
213 *
214 * Returns: the name of the method at address @ip.
215 */
216 G_GNUC_UNUSED char *
217 mono_pmip (void *ip)
218 {
219 return get_method_from_ip (ip);
220 }
221
222 /**
223 * mono_print_method_from_ip
224 * @ip: an instruction pointer address
225 *
226 * This method is used from a debugger to get the name of the
227 * method at address @ip.
228 *
229 * This prints the name of the method at address @ip in the standard
230 * output. Unlike mono_pmip which returns a string, this routine
231 * prints the value on the standard output.
232 */
233 #ifdef __GNUC__
234 /* Prevent the linker from optimizing this away in embedding setups to help debugging */
235 __attribute__((used))
236 #endif
237 void
238 mono_print_method_from_ip (void *ip)
239 {
240 MonoJitInfo *ji;
241 char *method;
242 MonoDebugSourceLocation *source;
243 MonoDomain *domain = mono_domain_get ();
244 MonoDomain *target_domain = mono_domain_get ();
245 FindTrampUserData user_data;
246 MonoGenericSharingContext*gsctx;
247 const char *shared_type;
248
249 ji = mini_jit_info_table_find_ext (domain, (char *)ip, TRUE, &target_domain);
250 if (ji && ji->is_trampoline) {
251 MonoTrampInfo *tinfo = (MonoTrampInfo *)ji->d.tramp_info;
252
253 printf ("IP %p is at offset 0x%x of trampoline '%s'.\n", ip, (int)((guint8*)ip - tinfo->code), tinfo->name);
254 return;
255 }
256
257 if (!ji) {
258 user_data.ip = ip;
259 user_data.method = NULL;
260 mono_domain_lock (domain);
261 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
262 mono_domain_unlock (domain);
263
264 if (user_data.method) {
265 char *mname = mono_method_full_name (user_data.method, TRUE);
266 printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
267 g_free (mname);
268 return;
269 }
270
271 g_print ("No method at %p\n", ip);
272 fflush (stdout);
273 return;
274 }
275 method = mono_method_full_name (jinfo_get_method (ji), TRUE);
276 source = mono_debug_lookup_source_location (jinfo_get_method (ji), (guint32)((guint8*)ip - (guint8*)ji->code_start), target_domain);
277
278 gsctx = mono_jit_info_get_generic_sharing_context (ji);
279 shared_type = "";
280 if (gsctx) {
281 if (gsctx->is_gsharedvt)
282 shared_type = "gsharedvt ";
283 else
284 shared_type = "gshared ";
285 }
286
287 g_print ("IP %p at offset 0x%x of %smethod %s (%p %p)[domain %p - %s]\n", ip, (int)((char*)ip - (char*)ji->code_start), shared_type, method, ji->code_start, (char*)ji->code_start + ji->code_size, target_domain, target_domain->friendly_name);
288
289 if (source)
290 g_print ("%s:%d\n", source->source_file, source->row);
291 fflush (stdout);
292
293 mono_debug_free_source_location (source);
294 g_free (method);
295 }
296
297 /*
298 * mono_method_same_domain:
299 *
300 * Determine whenever two compiled methods are in the same domain, thus
301 * the address of the callee can be embedded in the caller.
302 */
303 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
304 {
305 MonoMethod *cmethod;
306
307 if (!caller || caller->is_trampoline || !callee || callee->is_trampoline)
308 return FALSE;
309
310 /*
311 * If the call was made from domain-neutral to domain-specific
312 * code, we can't patch the call site.
313 */
314 if (caller->domain_neutral && !callee->domain_neutral)
315 return FALSE;
316
317 cmethod = jinfo_get_method (caller);
318 if ((cmethod->klass == mono_defaults.appdomain_class) &&
319 (strstr (cmethod->name, "InvokeInDomain"))) {
320 /* The InvokeInDomain methods change the current appdomain */
321 return FALSE;
322 }
323
324 return TRUE;
325 }
326
327 /*
328 * mono_global_codeman_reserve:
329 *
330 * Allocate code memory from the global code manager.
331 */
332 void *mono_global_codeman_reserve (int size)
333 {
334 void *ptr;
335
336 if (mono_aot_only)
337 g_error ("Attempting to allocate from the global code manager while running with --aot-only.\n");
338
339 if (!global_codeman) {
340 /* This can happen during startup */
341 global_codeman = mono_code_manager_new ();
342 return mono_code_manager_reserve (global_codeman, size);
343 }
344 else {
345 mono_jit_lock ();
346 ptr = mono_code_manager_reserve (global_codeman, size);
347 mono_jit_unlock ();
348 return ptr;
349 }
350 }
351
352 #if defined(__native_client_codegen__) && defined(__native_client__)
353 void
354 mono_nacl_gc()
355 {
356 #ifdef __native_client_gc__
357 __nacl_suspend_thread_if_needed();
358 #endif
359 }
360
361 /* Given the temporary buffer (allocated by mono_global_codeman_reserve) into
362 * which we are generating code, return a pointer to the destination in the
363 * dynamic code segment into which the code will be copied when
364 * mono_global_codeman_commit is called.
365 * LOCKING: Acquires the jit lock.
366 */
367 void*
368 nacl_global_codeman_get_dest (void *data)
369 {
370 void *dest;
371 mono_jit_lock ();
372 dest = nacl_code_manager_get_code_dest (global_codeman, data);
373 mono_jit_unlock ();
374 return dest;
375 }
376
377 void
378 mono_global_codeman_commit (void *data, int size, int newsize)
379 {
380 mono_jit_lock ();
381 mono_code_manager_commit (global_codeman, data, size, newsize);
382 mono_jit_unlock ();
383 }
384
385 /*
386 * Convenience function which calls mono_global_codeman_commit to validate and
387 * copy the code. The caller sets *buf_base and *buf_size to the start and size
388 * of the buffer (allocated by mono_global_codeman_reserve), and *code_end to
389 * the byte after the last instruction byte. On return, *buf_base will point to
390 * the start of the copied in the code segment, and *code_end will point after
391 * the end of the copied code.
392 */
393 void
394 nacl_global_codeman_validate (guint8 **buf_base, int buf_size, guint8 **code_end)
395 {
396 guint8 *tmp = nacl_global_codeman_get_dest (*buf_base);
397 mono_global_codeman_commit (*buf_base, buf_size, *code_end - *buf_base);
398 *code_end = tmp + (*code_end - *buf_base);
399 *buf_base = tmp;
400 }
401 #else
402 /* no-op versions of Native Client functions */
403 void*
404 nacl_global_codeman_get_dest (void *data)
405 {
406 return data;
407 }
408
409 void
410 mono_global_codeman_commit (void *data, int size, int newsize)
411 {
412 }
413
414 void
415 nacl_global_codeman_validate (guint8 **buf_base, int buf_size, guint8 **code_end)
416 {
417 }
418
419 #endif /* __native_client__ */
420
421 /**
422 * mono_create_unwind_op:
423 *
424 * Create an unwind op with the given parameters.
425 */
426 MonoUnwindOp*
427 mono_create_unwind_op (int when, int tag, int reg, int val)
428 {
429 MonoUnwindOp *op = g_new0 (MonoUnwindOp, 1);
430
431 op->op = tag;
432 op->reg = reg;
433 op->val = val;
434 op->when = when;
435
436 return op;
437 }
438
439 MonoJumpInfoToken *
440 mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context)
441 {
442 MonoJumpInfoToken *res = (MonoJumpInfoToken *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
443 res->image = image;
444 res->token = token;
445 res->has_context = context != NULL;
446 if (context)
447 memcpy (&res->context, context, sizeof (MonoGenericContext));
448
449 return res;
450 }
451
452 MonoJumpInfoToken *
453 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
454 {
455 return mono_jump_info_token_new2 (mp, image, token, NULL);
456 }
457
458 /*
459 * mono_tramp_info_create:
460 *
461 * Create a MonoTrampInfo structure from the arguments. This function assumes ownership
462 * of JI, and UNWIND_OPS.
463 */
464 MonoTrampInfo*
465 mono_tramp_info_create (const char *name, guint8 *code, guint32 code_size, MonoJumpInfo *ji, GSList *unwind_ops)
466 {
467 MonoTrampInfo *info = g_new0 (MonoTrampInfo, 1);
468
469 info->name = g_strdup ((char*)name);
470 info->code = code;
471 info->code_size = code_size;
472 info->ji = ji;
473 info->unwind_ops = unwind_ops;
474
475 return info;
476 }
477
478 void
479 mono_tramp_info_free (MonoTrampInfo *info)
480 {
481 g_free (info->name);
482
483 // FIXME: ji
484 mono_free_unwind_info (info->unwind_ops);
485 g_free (info);
486 }
487
488 static void
489 register_trampoline_jit_info (MonoDomain *domain, MonoTrampInfo *info)
490 {
491 MonoJitInfo *ji;
492
493 ji = (MonoJitInfo *)mono_domain_alloc0 (domain, mono_jit_info_size ((MonoJitInfoFlags)0, 0, 0));
494 mono_jit_info_init (ji, NULL, info->code, info->code_size, (MonoJitInfoFlags)0, 0, 0);
495 ji->d.tramp_info = info;
496 ji->is_trampoline = TRUE;
497
498 ji->unwind_info = mono_cache_unwind_info (info->uw_info, info->uw_info_len);
499
500 mono_jit_info_table_add (domain, ji);
501 }
502
503 /*
504 * mono_tramp_info_register:
505 *
506 * Remember INFO for use by xdebug, mono_print_method_from_ip (), jit maps, etc.
507 * INFO can be NULL.
508 * Frees INFO.
509 */
510 void
511 mono_tramp_info_register (MonoTrampInfo *info, MonoDomain *domain)
512 {
513 MonoTrampInfo *copy;
514
515 if (!info)
516 return;
517
518 if (!domain)
519 domain = mono_get_root_domain ();
520
521 copy = g_new0 (MonoTrampInfo, 1);
522 copy->code = info->code;
523 copy->code_size = info->code_size;
524 copy->name = g_strdup (info->name);
525
526 if (info->unwind_ops) {
527 copy->uw_info = mono_unwind_ops_encode (info->unwind_ops, &copy->uw_info_len);
528 } else {
529 /* Trampolines from aot have the unwind ops already encoded */
530 copy->uw_info = info->uw_info;
531 copy->uw_info_len = info->uw_info_len;
532 }
533
534 mono_jit_lock ();
535 tramp_infos = g_slist_prepend (tramp_infos, copy);
536 mono_jit_unlock ();
537
538 mono_save_trampoline_xdebug_info (info);
539
540 /* Only register trampolines that have unwind infos */
541 if (mono_get_root_domain () && copy->uw_info)
542 register_trampoline_jit_info (domain, copy);
543
544 if (mono_jit_map_is_enabled ())
545 mono_emit_jit_tramp (info->code, info->code_size, info->name);
546
547 mono_tramp_info_free (info);
548 }
549
550 static void
551 mono_tramp_info_cleanup (void)
552 {
553 GSList *l;
554
555 for (l = tramp_infos; l; l = l->next) {
556 MonoTrampInfo *info = (MonoTrampInfo *)l->data;
557
558 mono_tramp_info_free (info);
559 }
560 g_slist_free (tramp_infos);
561 }
562
563 /* Register trampolines created before the root domain was created in the jit info tables */
564 static void
565 register_trampolines (MonoDomain *domain)
566 {
567 GSList *l;
568
569 for (l = tramp_infos; l; l = l->next) {
570 MonoTrampInfo *info = (MonoTrampInfo *)l->data;
571
572 register_trampoline_jit_info (domain, info);
573 }
574 }
575
576 G_GNUC_UNUSED static void
577 break_count (void)
578 {
579 }
580
581 /*
582 * Runtime debugging tool, use if (debug_count ()) <x> else <y> to do <x> the first COUNT times, then do <y> afterwards.
583 * Set a breakpoint in break_count () to break the last time <x> is done.
584 */
585 G_GNUC_UNUSED gboolean
586 mono_debug_count (void)
587 {
588 static int count = 0;
589 static gboolean inited;
590 static const char *value;
591
592 count ++;
593
594 if (!inited) {
595 value = g_getenv ("COUNT");
596 inited = TRUE;
597 }
598
599 if (!value)
600 return TRUE;
601
602 if (count == atoi (value))
603 break_count ();
604
605 if (count > atoi (value))
606 return FALSE;
607
608 return TRUE;
609 }
610
611 gconstpointer
612 mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile)
613 {
614 char *name;
615 MonoMethod *wrapper;
616 gconstpointer trampoline;
617 MonoDomain *domain = mono_get_root_domain ();
618 gboolean check_exc = TRUE;
619
620 if (callinfo->wrapper)
621 return callinfo->wrapper;
622
623 if (callinfo->trampoline)
624 return callinfo->trampoline;
625
626 if (!strcmp (callinfo->name, "mono_thread_interruption_checkpoint"))
627 /* This icall is used to check for exceptions, so don't check in the wrapper */
628 check_exc = FALSE;
629
630 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
631 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_exc);
632 g_free (name);
633
634 if (do_compile) {
635 trampoline = mono_compile_method (wrapper);
636 } else {
637 MonoError error;
638
639 trampoline = mono_create_jit_trampoline (domain, wrapper, &error);
640 mono_error_assert_ok (&error);
641 trampoline = mono_create_ftnptr (domain, (gpointer)trampoline);
642 }
643
644 mono_loader_lock ();
645 if (!callinfo->trampoline) {
646 mono_register_jit_icall_wrapper (callinfo, trampoline);
647 callinfo->trampoline = trampoline;
648 }
649 mono_loader_unlock ();
650
651 return callinfo->trampoline;
652 }
653
654 gconstpointer
655 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
656 {
657 return mono_icall_get_wrapper_full (callinfo, FALSE);
658 }
659
660 static MonoJitDynamicMethodInfo*
661 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
662 {
663 MonoJitDynamicMethodInfo *res;
664
665 if (domain_jit_info (domain)->dynamic_code_hash)
666 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
667 else
668 res = NULL;
669 return res;
670 }
671
672 static void
673 register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
674 {
675 #ifndef DISABLE_JIT
676 mini_register_opcode_emulation (opcode, name, sigstr, func, symbol, no_throw);
677 #else
678 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
679
680 g_assert (!sig->hasthis);
681 g_assert (sig->param_count < 3);
682
683 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
684 mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
685 #endif
686 }
687
688 /*
689 * For JIT icalls implemented in C.
690 * NAME should be the same as the name of the C function whose address is FUNC.
691 * If @avoid_wrapper is TRUE, no wrapper is generated. This is for perf critical icalls which
692 * can't throw exceptions.
693 */
694 static void
695 register_icall (gpointer func, const char *name, const char *sigstr, gboolean avoid_wrapper)
696 {
697 MonoMethodSignature *sig;
698
699 if (sigstr)
700 sig = mono_create_icall_signature (sigstr);
701 else
702 sig = NULL;
703
704 mono_register_jit_icall_full (func, name, sig, avoid_wrapper, FALSE, avoid_wrapper ? name : NULL);
705 }
706
707 static void
708 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
709 {
710 MonoMethodSignature *sig;
711
712 if (sigstr)
713 sig = mono_create_icall_signature (sigstr);
714 else
715 sig = NULL;
716
717 mono_register_jit_icall_full (func, name, sig, TRUE, FALSE, name);
718 }
719
720 static void
721 register_icall_with_wrapper (gpointer func, const char *name, const char *sigstr)
722 {
723 MonoMethodSignature *sig;
724
725 if (sigstr)
726 sig = mono_create_icall_signature (sigstr);
727 else
728 sig = NULL;
729
730 mono_register_jit_icall_full (func, name, sig, FALSE, FALSE, NULL);
731 }
732
733 static void
734 register_dyn_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
735 {
736 MonoMethodSignature *sig;
737
738 if (sigstr)
739 sig = mono_create_icall_signature (sigstr);
740 else
741 sig = NULL;
742
743 mono_register_jit_icall (func, name, sig, save);
744 }
745
746 #ifdef MONO_HAVE_FAST_TLS
747 MONO_FAST_TLS_DECLARE(mono_lmf_addr);
748 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
749 /*
750 * When this is defined, the current lmf is stored in this tls variable instead of in
751 * jit_tls->lmf.
752 */
753 MONO_FAST_TLS_DECLARE(mono_lmf);
754 #endif
755 #endif
756
757 gint32
758 mono_get_jit_tls_offset (void)
759 {
760 int offset;
761
762 #ifdef HOST_WIN32
763 if (mono_jit_tls_id)
764 offset = mono_jit_tls_id;
765 else
766 /* FIXME: Happens during startup */
767 offset = -1;
768 #else
769 MONO_THREAD_VAR_OFFSET (mono_jit_tls, offset);
770 #endif
771 return offset;
772 }
773
774 gint32
775 mono_get_lmf_tls_offset (void)
776 {
777 #if defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
778 int offset;
779 MONO_THREAD_VAR_OFFSET(mono_lmf,offset);
780 return offset;
781 #else
782 return -1;
783 #endif
784 }
785
786 gint32
787 mono_get_lmf_addr_tls_offset (void)
788 {
789 int offset;
790 MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
791 return offset;
792 }
793
794 MonoLMF *
795 mono_get_lmf (void)
796 {
797 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
798 return (MonoLMF *)MONO_FAST_TLS_GET (mono_lmf);
799 #else
800 MonoJitTlsData *jit_tls;
801
802 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
803 return jit_tls->lmf;
804 /*
805 * We do not assert here because this function can be called from
806 * mini-gc.c on a thread that has not executed any managed code, yet
807 * (the thread object allocation can trigger a collection).
808 */
809 return NULL;
810 #endif
811 }
812
813 MonoLMF **
814 mono_get_lmf_addr (void)
815 {
816 #ifdef MONO_HAVE_FAST_TLS
817 return (MonoLMF **)MONO_FAST_TLS_GET (mono_lmf_addr);
818 #else
819 MonoJitTlsData *jit_tls;
820
821 jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
822 if (G_LIKELY (jit_tls))
823 return &jit_tls->lmf;
824
825 /*
826 * When resolving the call to mono_jit_thread_attach full-aot will look
827 * in the plt, which causes a call into the generic trampoline, which in turn
828 * tries to resolve the lmf_addr creating a cyclic dependency. We cannot
829 * call mono_jit_thread_attach from the native-to-managed wrapper, without
830 * mono_get_lmf_addr, and mono_get_lmf_addr requires the thread to be attached.
831 */
832
833 mono_thread_attach (mono_get_root_domain ());
834 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
835
836 if ((jit_tls = mono_native_tls_get_value (mono_jit_tls_id)))
837 return &jit_tls->lmf;
838
839 g_assert_not_reached ();
840 return NULL;
841 #endif
842 }
843
844 void
845 mono_set_lmf (MonoLMF *lmf)
846 {
847 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
848 MONO_FAST_TLS_SET (mono_lmf, lmf);
849 #endif
850
851 (*mono_get_lmf_addr ()) = lmf;
852 }
853
854 MonoJitTlsData*
855 mono_get_jit_tls (void)
856 {
857 return (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
858 }
859
860 static void
861 mono_set_jit_tls (MonoJitTlsData *jit_tls)
862 {
863 MonoThreadInfo *info;
864
865 mono_native_tls_set_value (mono_jit_tls_id, jit_tls);
866
867 #ifdef MONO_HAVE_FAST_TLS
868 MONO_FAST_TLS_SET (mono_jit_tls, jit_tls);
869 #endif
870
871 /* Save it into MonoThreadInfo so it can be accessed by mono_thread_state_init_from_handle () */
872 info = mono_thread_info_current ();
873 if (info)
874 mono_thread_info_tls_set (info, TLS_KEY_JIT_TLS, jit_tls);
875 }
876
877 static void
878 mono_set_lmf_addr (gpointer lmf_addr)
879 {
880 MonoThreadInfo *info;
881
882 #ifdef MONO_HAVE_FAST_TLS
883 MONO_FAST_TLS_SET (mono_lmf_addr, lmf_addr);
884 #endif
885
886 /* Save it into MonoThreadInfo so it can be accessed by mono_thread_state_init_from_handle () */
887 info = mono_thread_info_current ();
888 if (info)
889 mono_thread_info_tls_set (info, TLS_KEY_LMF_ADDR, lmf_addr);
890 }
891
892 /*
893 * mono_jit_thread_attach: called by native->managed wrappers
894 *
895 * In non-coop mode:
896 * - @dummy: is NULL
897 * - @return: the original domain which needs to be restored, or NULL.
898 *
899 * In coop mode:
900 * - @dummy: contains the original domain
901 * - @return: a cookie containing current MonoThreadInfo* if it was in BLOCKING mode, NULL otherwise
902 */
903 gpointer
904 mono_jit_thread_attach (MonoDomain *domain, gpointer *dummy)
905 {
906 MonoDomain *orig;
907
908 if (!domain) {
909 /* Happens when called from AOTed code which is only used in the root domain. */
910 domain = mono_get_root_domain ();
911 }
912
913 g_assert (domain);
914
915 if (!mono_threads_is_coop_enabled ()) {
916 gboolean attached;
917
918 #ifdef MONO_HAVE_FAST_TLS
919 attached = MONO_FAST_TLS_GET (mono_lmf_addr) != NULL;
920 #else
921 attached = mono_native_tls_get_value (mono_jit_tls_id) != NULL;
922 #endif
923
924 if (!attached) {
925 mono_thread_attach (domain);
926
927 // #678164
928 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
929 }
930
931 orig = mono_domain_get ();
932 if (orig != domain)
933 mono_domain_set (domain, TRUE);
934
935 return orig != domain ? orig : NULL;
936 } else {
937 MonoThreadInfo *info;
938
939 info = mono_thread_info_current_unchecked ();
940 if (!info || !mono_thread_info_is_live (info)) {
941 /* thread state STARTING -> RUNNING */
942 mono_thread_attach (domain);
943
944 // #678164
945 mono_thread_set_state (mono_thread_internal_current (), ThreadState_Background);
946
947 *dummy = NULL;
948
949 /* mono_threads_reset_blocking_start returns the current MonoThreadInfo
950 * if we were in BLOCKING mode */
951 return mono_thread_info_current ();
952 } else {
953 orig = mono_domain_get ();
954
955 /* orig might be null if we did an attach -> detach -> attach sequence */
956
957 if (orig != domain)
958 mono_domain_set (domain, TRUE);
959
960 *dummy = orig;
961
962 /* thread state (BLOCKING|RUNNING) -> RUNNING */
963 return mono_threads_reset_blocking_start (dummy);
964 }
965 }
966 }
967
968 /*
969 * mono_jit_thread_detach: called by native->managed wrappers
970 *
971 * In non-coop mode:
972 * - @cookie: the original domain which needs to be restored, or NULL.
973 * - @dummy: is NULL
974 *
975 * In coop mode:
976 * - @cookie: contains current MonoThreadInfo* if it was in BLOCKING mode, NULL otherwise
977 * - @dummy: contains the original domain
978 */
979 void
980 mono_jit_thread_detach (gpointer cookie, gpointer *dummy)
981 {
982 MonoDomain *domain, *orig;
983
984 if (!mono_threads_is_coop_enabled ()) {
985 orig = (MonoDomain*) cookie;
986
987 if (orig)
988 mono_domain_set (orig, TRUE);
989 } else {
990 orig = (MonoDomain*) *dummy;
991
992 domain = mono_domain_get ();
993 g_assert (domain);
994
995 /* it won't do anything if cookie is NULL
996 * thread state RUNNING -> (RUNNING|BLOCKING) */
997 mono_threads_reset_blocking_end (cookie, dummy);
998
999 if (orig != domain) {
1000 if (!orig)
1001 mono_domain_unset ();
1002 else
1003 mono_domain_set (orig, TRUE);
1004 }
1005 }
1006 }
1007
1008 /**
1009 * mono_thread_abort:
1010 * @obj: exception object
1011 *
1012 * abort the thread, print exception information and stack trace
1013 */
1014 static void
1015 mono_thread_abort (MonoObject *obj)
1016 {
1017 /* MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id); */
1018
1019 /* handle_remove should be eventually called for this thread, too
1020 g_free (jit_tls);*/
1021
1022 if ((mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_LEGACY) ||
1023 (obj->vtable->klass == mono_defaults.threadabortexception_class)) {
1024 mono_thread_exit ();
1025 } else {
1026 mono_invoke_unhandled_exception_hook (obj);
1027 }
1028 }
1029
1030 static void*
1031 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
1032 {
1033 MonoJitTlsData *jit_tls;
1034 MonoLMF *lmf;
1035
1036 jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
1037 if (jit_tls)
1038 return jit_tls;
1039
1040 jit_tls = g_new0 (MonoJitTlsData, 1);
1041
1042 jit_tls->abort_func = (void (*)(MonoObject *))abort_func;
1043 jit_tls->end_of_stack = stack_start;
1044
1045 mono_set_jit_tls (jit_tls);
1046
1047 lmf = g_new0 (MonoLMF, 1);
1048 MONO_ARCH_INIT_TOP_LMF_ENTRY (lmf);
1049
1050 jit_tls->first_lmf = lmf;
1051
1052 #if defined(MONO_HAVE_FAST_TLS) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
1053 /* jit_tls->lmf is unused */
1054 MONO_FAST_TLS_SET (mono_lmf, lmf);
1055 mono_set_lmf_addr (MONO_FAST_TLS_ADDR (mono_lmf));
1056 #else
1057 mono_set_lmf_addr (&jit_tls->lmf);
1058
1059 jit_tls->lmf = lmf;
1060 #endif
1061
1062 #ifdef MONO_ARCH_HAVE_TLS_INIT
1063 mono_arch_tls_init ();
1064 #endif
1065
1066 mono_setup_altstack (jit_tls);
1067
1068 return jit_tls;
1069 }
1070
1071 static void
1072 free_jit_tls_data (MonoJitTlsData *jit_tls)
1073 {
1074 mono_arch_free_jit_tls_data (jit_tls);
1075 mono_free_altstack (jit_tls);
1076
1077 g_free (jit_tls->first_lmf);
1078 g_free (jit_tls);
1079 }
1080
1081 static void
1082 mono_thread_start_cb (intptr_t tid, gpointer stack_start, gpointer func)
1083 {
1084 MonoThreadInfo *thread;
1085 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
1086 thread = mono_thread_info_current_unchecked ();
1087 if (thread)
1088 thread->jit_data = jit_tls;
1089
1090 mono_arch_cpu_init ();
1091 }
1092
1093 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
1094
1095 static void
1096 mono_thread_abort_dummy (MonoObject *obj)
1097 {
1098 if (mono_thread_attach_aborted_cb)
1099 mono_thread_attach_aborted_cb (obj);
1100 else
1101 mono_thread_abort (obj);
1102 }
1103
1104 static void
1105 mono_thread_attach_cb (intptr_t tid, gpointer stack_start)
1106 {
1107 MonoThreadInfo *thread;
1108 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
1109 thread = mono_thread_info_current_unchecked ();
1110 if (thread)
1111 thread->jit_data = jit_tls;
1112 if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
1113 mono_runtime_setup_stat_profiler ();
1114
1115 mono_arch_cpu_init ();
1116 }
1117
1118 static void
1119 mini_thread_cleanup (MonoNativeThreadId tid)
1120 {
1121 MonoJitTlsData *jit_tls = NULL;
1122 MonoThreadInfo *info;
1123
1124 info = mono_thread_info_current_unchecked ();
1125
1126 /* We can't clean up tls information if we are on another thread, it will clean up the wrong stuff
1127 * It would be nice to issue a warning when this happens outside of the shutdown sequence. but it's
1128 * not a trivial thing.
1129 *
1130 * The current offender is mono_thread_manage which cleanup threads from the outside.
1131 */
1132 if (info && mono_thread_info_get_tid (info) == tid) {
1133 jit_tls = (MonoJitTlsData *)info->jit_data;
1134 info->jit_data = NULL;
1135
1136 mono_set_jit_tls (NULL);
1137
1138 /* If we attach a thread but never call into managed land, we might never get an lmf.*/
1139 if (mono_get_lmf ()) {
1140 mono_set_lmf (NULL);
1141 mono_set_lmf_addr (NULL);
1142 }
1143 } else {
1144 info = mono_thread_info_lookup (tid);
1145 if (info) {
1146 jit_tls = (MonoJitTlsData *)info->jit_data;
1147 info->jit_data = NULL;
1148 }
1149 mono_hazard_pointer_clear (mono_hazard_pointer_get (), 1);
1150 }
1151
1152 if (jit_tls)
1153 free_jit_tls_data (jit_tls);
1154 }
1155
1156 int
1157 mini_get_tls_offset (MonoTlsKey key)
1158 {
1159 int offset;
1160 g_assert (MONO_ARCH_HAVE_TLS_GET);
1161
1162 switch (key) {
1163 case TLS_KEY_THREAD:
1164 offset = mono_thread_get_tls_offset ();
1165 break;
1166 case TLS_KEY_JIT_TLS:
1167 offset = mono_get_jit_tls_offset ();
1168 break;
1169 case TLS_KEY_DOMAIN:
1170 offset = mono_domain_get_tls_offset ();
1171 break;
1172 case TLS_KEY_LMF:
1173 offset = mono_get_lmf_tls_offset ();
1174 break;
1175 case TLS_KEY_LMF_ADDR:
1176 offset = mono_get_lmf_addr_tls_offset ();
1177 break;
1178 default:
1179 offset = mono_tls_key_get_offset (key);
1180 g_assert (offset != -1);
1181 break;
1182 }
1183
1184 return offset;
1185 }
1186
1187 static gboolean
1188 mini_tls_key_supported (MonoTlsKey key)
1189 {
1190 if (!MONO_ARCH_HAVE_TLS_GET)
1191 return FALSE;
1192
1193 return mini_get_tls_offset (key) != -1;
1194 }
1195
1196 MonoJumpInfo *
1197 mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target)
1198 {
1199 MonoJumpInfo *ji = g_new0 (MonoJumpInfo, 1);
1200
1201 ji->ip.i = ip;
1202 ji->type = type;
1203 ji->data.target = target;
1204 ji->next = list;
1205
1206 return ji;
1207 }
1208
1209 /**
1210 * mono_patch_info_dup_mp:
1211 *
1212 * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
1213 */
1214 MonoJumpInfo*
1215 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
1216 {
1217 MonoJumpInfo *res = (MonoJumpInfo *)mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
1218 memcpy (res, patch_info, sizeof (MonoJumpInfo));
1219
1220 switch (patch_info->type) {
1221 case MONO_PATCH_INFO_RVA:
1222 case MONO_PATCH_INFO_LDSTR:
1223 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1224 case MONO_PATCH_INFO_LDTOKEN:
1225 case MONO_PATCH_INFO_DECLSEC:
1226 res->data.token = (MonoJumpInfoToken *)mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
1227 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
1228 break;
1229 case MONO_PATCH_INFO_SWITCH:
1230 res->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
1231 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
1232 res->data.table->table = (MonoBasicBlock **)mono_mempool_alloc (mp, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
1233 memcpy (res->data.table->table, patch_info->data.table->table, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
1234 break;
1235 case MONO_PATCH_INFO_RGCTX_FETCH:
1236 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX:
1237 res->data.rgctx_entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc (mp, sizeof (MonoJumpInfoRgctxEntry));
1238 memcpy (res->data.rgctx_entry, patch_info->data.rgctx_entry, sizeof (MonoJumpInfoRgctxEntry));
1239 res->data.rgctx_entry->data = mono_patch_info_dup_mp (mp, res->data.rgctx_entry->data);
1240 break;
1241 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1242 res->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
1243 memcpy (res->data.del_tramp, patch_info->data.del_tramp, sizeof (MonoDelegateClassMethodPair));
1244 break;
1245 case MONO_PATCH_INFO_GSHAREDVT_CALL:
1246 res->data.gsharedvt = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc (mp, sizeof (MonoJumpInfoGSharedVtCall));
1247 memcpy (res->data.gsharedvt, patch_info->data.gsharedvt, sizeof (MonoJumpInfoGSharedVtCall));
1248 break;
1249 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
1250 MonoGSharedVtMethodInfo *info;
1251 MonoGSharedVtMethodInfo *oinfo;
1252 int i;
1253
1254 oinfo = patch_info->data.gsharedvt_method;
1255 info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc (mp, sizeof (MonoGSharedVtMethodInfo));
1256 res->data.gsharedvt_method = info;
1257 memcpy (info, oinfo, sizeof (MonoGSharedVtMethodInfo));
1258 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->count_entries);
1259 for (i = 0; i < oinfo->num_entries; ++i) {
1260 MonoRuntimeGenericContextInfoTemplate *otemplate = &oinfo->entries [i];
1261 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
1262
1263 memcpy (template_, otemplate, sizeof (MonoRuntimeGenericContextInfoTemplate));
1264 }
1265 //info->locals_types = mono_mempool_alloc0 (mp, info->nlocals * sizeof (MonoType*));
1266 //memcpy (info->locals_types, oinfo->locals_types, info->nlocals * sizeof (MonoType*));
1267 break;
1268 }
1269 case MONO_PATCH_INFO_VIRT_METHOD: {
1270 MonoJumpInfoVirtMethod *info;
1271 MonoJumpInfoVirtMethod *oinfo;
1272
1273 oinfo = patch_info->data.virt_method;
1274 info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
1275 res->data.virt_method = info;
1276 memcpy (info, oinfo, sizeof (MonoJumpInfoVirtMethod));
1277 break;
1278 }
1279 default:
1280 break;
1281 }
1282
1283 return res;
1284 }
1285
1286 guint
1287 mono_patch_info_hash (gconstpointer data)
1288 {
1289 const MonoJumpInfo *ji = (MonoJumpInfo*)data;
1290
1291 switch (ji->type) {
1292 case MONO_PATCH_INFO_RVA:
1293 case MONO_PATCH_INFO_LDSTR:
1294 case MONO_PATCH_INFO_LDTOKEN:
1295 case MONO_PATCH_INFO_DECLSEC:
1296 return (ji->type << 8) | ji->data.token->token;
1297 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1298 return (ji->type << 8) | ji->data.token->token | (ji->data.token->has_context ? (gsize)ji->data.token->context.class_inst : 0);
1299 case MONO_PATCH_INFO_INTERNAL_METHOD:
1300 return (ji->type << 8) | g_str_hash (ji->data.name);
1301 case MONO_PATCH_INFO_VTABLE:
1302 case MONO_PATCH_INFO_CLASS:
1303 case MONO_PATCH_INFO_IID:
1304 case MONO_PATCH_INFO_ADJUSTED_IID:
1305 case MONO_PATCH_INFO_METHODCONST:
1306 case MONO_PATCH_INFO_METHOD:
1307 case MONO_PATCH_INFO_METHOD_JUMP:
1308 case MONO_PATCH_INFO_IMAGE:
1309 case MONO_PATCH_INFO_ICALL_ADDR:
1310 case MONO_PATCH_INFO_FIELD:
1311 case MONO_PATCH_INFO_SFLDA:
1312 case MONO_PATCH_INFO_SEQ_POINT_INFO:
1313 case MONO_PATCH_INFO_METHOD_RGCTX:
1314 case MONO_PATCH_INFO_SIGNATURE:
1315 case MONO_PATCH_INFO_TLS_OFFSET:
1316 case MONO_PATCH_INFO_METHOD_CODE_SLOT:
1317 case MONO_PATCH_INFO_AOT_JIT_INFO:
1318 return (ji->type << 8) | (gssize)ji->data.target;
1319 case MONO_PATCH_INFO_GSHAREDVT_CALL:
1320 return (ji->type << 8) | (gssize)ji->data.gsharedvt->method;
1321 case MONO_PATCH_INFO_RGCTX_FETCH:
1322 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
1323 MonoJumpInfoRgctxEntry *e = ji->data.rgctx_entry;
1324
1325 return (ji->type << 8) | (gssize)e->method | (e->in_mrgctx) | e->info_type | mono_patch_info_hash (e->data);
1326 }
1327 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1328 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
1329 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
1330 case MONO_PATCH_INFO_GC_NURSERY_START:
1331 case MONO_PATCH_INFO_GC_NURSERY_BITS:
1332 case MONO_PATCH_INFO_JIT_TLS_ID:
1333 case MONO_PATCH_INFO_GOT_OFFSET:
1334 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
1335 case MONO_PATCH_INFO_AOT_MODULE:
1336 return (ji->type << 8);
1337 case MONO_PATCH_INFO_CASTCLASS_CACHE:
1338 return (ji->type << 8) | (ji->data.index);
1339 case MONO_PATCH_INFO_SWITCH:
1340 return (ji->type << 8) | ji->data.table->table_size;
1341 case MONO_PATCH_INFO_GSHAREDVT_METHOD:
1342 return (ji->type << 8) | (gssize)ji->data.gsharedvt_method->method;
1343 case MONO_PATCH_INFO_OBJC_SELECTOR_REF:
1344 /* Hash on the selector name */
1345 return g_str_hash (ji->data.target);
1346 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1347 return (ji->type << 8) | (gsize)ji->data.del_tramp->klass | (gsize)ji->data.del_tramp->method | (gsize)ji->data.del_tramp->is_virtual;
1348 case MONO_PATCH_INFO_LDSTR_LIT:
1349 return g_str_hash (ji->data.target);
1350 case MONO_PATCH_INFO_VIRT_METHOD: {
1351 MonoJumpInfoVirtMethod *info = ji->data.virt_method;
1352
1353 return (ji->type << 8) | (gssize)info->klass | (gssize)info->method;
1354 }
1355 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1356 return (ji->type << 8) | g_str_hash (ji->data.target);
1357 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
1358 return (ji->type << 8) | mono_signature_hash (ji->data.sig);
1359 default:
1360 printf ("info type: %d\n", ji->type);
1361 mono_print_ji (ji); printf ("\n");
1362 g_assert_not_reached ();
1363 return 0;
1364 }
1365 }
1366
1367 /*
1368 * mono_patch_info_equal:
1369 *
1370 * This might fail to recognize equivalent patches, i.e. floats, so its only
1371 * usable in those cases where this is not a problem, i.e. sharing GOT slots
1372 * in AOT.
1373 */
1374 gint
1375 mono_patch_info_equal (gconstpointer ka, gconstpointer kb)
1376 {
1377 const MonoJumpInfo *ji1 = (MonoJumpInfo*)ka;
1378 const MonoJumpInfo *ji2 = (MonoJumpInfo*)kb;
1379
1380 if (ji1->type != ji2->type)
1381 return 0;
1382
1383 switch (ji1->type) {
1384 case MONO_PATCH_INFO_RVA:
1385 case MONO_PATCH_INFO_LDSTR:
1386 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1387 case MONO_PATCH_INFO_LDTOKEN:
1388 case MONO_PATCH_INFO_DECLSEC:
1389 if ((ji1->data.token->image != ji2->data.token->image) ||
1390 (ji1->data.token->token != ji2->data.token->token) ||
1391 (ji1->data.token->has_context != ji2->data.token->has_context) ||
1392 (ji1->data.token->context.class_inst != ji2->data.token->context.class_inst) ||
1393 (ji1->data.token->context.method_inst != ji2->data.token->context.method_inst))
1394 return 0;
1395 break;
1396 case MONO_PATCH_INFO_INTERNAL_METHOD:
1397 return g_str_equal (ji1->data.name, ji2->data.name);
1398 case MONO_PATCH_INFO_RGCTX_FETCH:
1399 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
1400 MonoJumpInfoRgctxEntry *e1 = ji1->data.rgctx_entry;
1401 MonoJumpInfoRgctxEntry *e2 = ji2->data.rgctx_entry;
1402
1403 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);
1404 }
1405 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
1406 MonoJumpInfoGSharedVtCall *c1 = ji1->data.gsharedvt;
1407 MonoJumpInfoGSharedVtCall *c2 = ji2->data.gsharedvt;
1408
1409 return c1->sig == c2->sig && c1->method == c2->method;
1410 }
1411 case MONO_PATCH_INFO_GSHAREDVT_METHOD:
1412 return ji1->data.gsharedvt_method->method == ji2->data.gsharedvt_method->method;
1413 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1414 return ji1->data.del_tramp->klass == ji2->data.del_tramp->klass && ji1->data.del_tramp->method == ji2->data.del_tramp->method && ji1->data.del_tramp->is_virtual == ji2->data.del_tramp->is_virtual;
1415 case MONO_PATCH_INFO_CASTCLASS_CACHE:
1416 return ji1->data.index == ji2->data.index;
1417 case MONO_PATCH_INFO_VIRT_METHOD:
1418 return ji1->data.virt_method->klass == ji2->data.virt_method->klass && ji1->data.virt_method->method == ji2->data.virt_method->method;
1419 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1420 if (ji1->data.target == ji2->data.target)
1421 return 1;
1422 return strcmp (ji1->data.target, ji2->data.target) == 0 ? 1 : 0;
1423 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
1424 return mono_metadata_signature_equal (ji1->data.sig, ji2->data.sig) ? 1 : 0;
1425 default:
1426 if (ji1->data.target != ji2->data.target)
1427 return 0;
1428 break;
1429 }
1430
1431 return 1;
1432 }
1433
1434 gpointer
1435 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors, MonoError *error)
1436 {
1437 unsigned char *ip = patch_info->ip.i + code;
1438 gconstpointer target = NULL;
1439
1440 mono_error_init (error);
1441
1442 switch (patch_info->type) {
1443 case MONO_PATCH_INFO_BB:
1444 /*
1445 * FIXME: This could be hit for methods without a prolog. Should use -1
1446 * but too much code depends on a 0 initial value.
1447 */
1448 //g_assert (patch_info->data.bb->native_offset);
1449 target = patch_info->data.bb->native_offset + code;
1450 break;
1451 case MONO_PATCH_INFO_ABS:
1452 target = patch_info->data.target;
1453 break;
1454 case MONO_PATCH_INFO_LABEL:
1455 target = patch_info->data.inst->inst_c0 + code;
1456 break;
1457 case MONO_PATCH_INFO_IP:
1458 #if defined(__native_client__) && defined(__native_client_codegen__)
1459 /* Need to transform to the destination address, it's */
1460 /* emitted as an immediate in the code. */
1461 target = nacl_inverse_modify_patch_target(ip);
1462 #else
1463 target = ip;
1464 #endif
1465 break;
1466 case MONO_PATCH_INFO_METHOD_REL:
1467 target = code + patch_info->data.offset;
1468 break;
1469 case MONO_PATCH_INFO_INTERNAL_METHOD: {
1470 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
1471 if (!mi) {
1472 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
1473 g_assert_not_reached ();
1474 }
1475 target = mono_icall_get_wrapper (mi);
1476 break;
1477 }
1478 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1479 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
1480 if (!mi) {
1481 g_warning ("unknown MONO_PATCH_INFO_JIT_ICALL_ADDR %s", patch_info->data.name);
1482 g_assert_not_reached ();
1483 }
1484 target = mi->func;
1485 break;
1486 }
1487 case MONO_PATCH_INFO_METHOD_JUMP:
1488 target = mono_create_jump_trampoline (domain, patch_info->data.method, FALSE, error);
1489 if (!mono_error_ok (error))
1490 return NULL;
1491 #if defined(__native_client__) && defined(__native_client_codegen__)
1492 # if defined(TARGET_AMD64)
1493 /* This target is an absolute address, not relative to the */
1494 /* current code being emitted on AMD64. */
1495 target = nacl_inverse_modify_patch_target(target);
1496 # endif
1497 #endif
1498 break;
1499 case MONO_PATCH_INFO_METHOD:
1500 #if defined(__native_client_codegen__) && defined(USE_JUMP_TABLES)
1501 /*
1502 * If we use jumptables, for recursive calls we cannot
1503 * avoid trampoline, as we not yet know where we will
1504 * be installed.
1505 */
1506 target = mono_create_jit_trampoline (domain, patch_info->data.method, error);
1507 if (!mono_error_ok (error))
1508 return NULL;
1509 #else
1510 if (patch_info->data.method == method) {
1511 target = code;
1512 } else {
1513 /* get the trampoline to the method from the domain */
1514 target = mono_create_jit_trampoline (domain, patch_info->data.method, error);
1515 if (!mono_error_ok (error))
1516 return NULL;
1517 }
1518 #endif
1519 break;
1520 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
1521 gpointer code_slot;
1522
1523 mono_domain_lock (domain);
1524 if (!domain_jit_info (domain)->method_code_hash)
1525 domain_jit_info (domain)->method_code_hash = g_hash_table_new (NULL, NULL);
1526 code_slot = g_hash_table_lookup (domain_jit_info (domain)->method_code_hash, patch_info->data.method);
1527 if (!code_slot) {
1528 code_slot = mono_domain_alloc0 (domain, sizeof (gpointer));
1529 g_hash_table_insert (domain_jit_info (domain)->method_code_hash, patch_info->data.method, code_slot);
1530 }
1531 mono_domain_unlock (domain);
1532 target = code_slot;
1533 break;
1534 }
1535 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
1536 #if defined(__native_client_codegen__)
1537 target = (gpointer)&__nacl_thread_suspension_needed;
1538 #else
1539 g_assert (mono_threads_is_coop_enabled ());
1540 target = (gpointer)&mono_polling_required;
1541 #endif
1542 break;
1543 case MONO_PATCH_INFO_SWITCH: {
1544 gpointer *jump_table;
1545 int i;
1546 #if defined(__native_client__) && defined(__native_client_codegen__)
1547 /* This memory will leak, but we don't care if we're */
1548 /* not deleting JIT'd methods anyway */
1549 jump_table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
1550 #else
1551 if (method && method->dynamic) {
1552 jump_table = (void **)mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
1553 } else {
1554 if (mono_aot_only) {
1555 jump_table = (void **)mono_domain_alloc (domain, sizeof (gpointer) * patch_info->data.table->table_size);
1556 } else {
1557 jump_table = (void **)mono_domain_code_reserve (domain, sizeof (gpointer) * patch_info->data.table->table_size);
1558 }
1559 }
1560 #endif
1561
1562 for (i = 0; i < patch_info->data.table->table_size; i++) {
1563 #if defined(__native_client__) && defined(__native_client_codegen__)
1564 /* 'code' is relative to the current code blob, we */
1565 /* need to do this transform on it to make the */
1566 /* pointers in this table absolute */
1567 jump_table [i] = nacl_inverse_modify_patch_target (code) + GPOINTER_TO_INT (patch_info->data.table->table [i]);
1568 #else
1569 jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
1570 #endif
1571 }
1572
1573 #if defined(__native_client__) && defined(__native_client_codegen__)
1574 /* jump_table is in the data section, we need to transform */
1575 /* it here so when it gets modified in amd64_patch it will */
1576 /* then point back to the absolute data address */
1577 target = nacl_inverse_modify_patch_target (jump_table);
1578 #else
1579 target = jump_table;
1580 #endif
1581 break;
1582 }
1583 case MONO_PATCH_INFO_METHODCONST:
1584 case MONO_PATCH_INFO_CLASS:
1585 case MONO_PATCH_INFO_IMAGE:
1586 case MONO_PATCH_INFO_FIELD:
1587 case MONO_PATCH_INFO_SIGNATURE:
1588 case MONO_PATCH_INFO_AOT_MODULE:
1589 target = patch_info->data.target;
1590 break;
1591 case MONO_PATCH_INFO_IID:
1592 mono_class_init (patch_info->data.klass);
1593 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
1594 break;
1595 case MONO_PATCH_INFO_ADJUSTED_IID:
1596 mono_class_init (patch_info->data.klass);
1597 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
1598 break;
1599 case MONO_PATCH_INFO_VTABLE:
1600 target = mono_class_vtable (domain, patch_info->data.klass);
1601 g_assert (target);
1602 break;
1603 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE: {
1604 MonoDelegateClassMethodPair *del_tramp = patch_info->data.del_tramp;
1605
1606 if (del_tramp->is_virtual)
1607 target = mono_create_delegate_virtual_trampoline (domain, del_tramp->klass, del_tramp->method);
1608 else
1609 target = mono_create_delegate_trampoline_info (domain, del_tramp->klass, del_tramp->method);
1610 break;
1611 }
1612 case MONO_PATCH_INFO_SFLDA: {
1613 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
1614
1615 if (mono_class_field_is_special_static (patch_info->data.field)) {
1616 gpointer addr = NULL;
1617
1618 mono_domain_lock (domain);
1619 if (domain->special_static_fields)
1620 addr = g_hash_table_lookup (domain->special_static_fields, patch_info->data.field);
1621 mono_domain_unlock (domain);
1622 g_assert (addr);
1623 return addr;
1624 }
1625
1626 g_assert (vtable);
1627 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
1628 /* Done by the generated code */
1629 ;
1630 else {
1631 if (run_cctors) {
1632 if (!mono_runtime_class_init_full (vtable, error)) {
1633 return NULL;
1634 }
1635 }
1636 }
1637 target = (char*)mono_vtable_get_static_field_data (vtable) + patch_info->data.field->offset;
1638 break;
1639 }
1640 case MONO_PATCH_INFO_RVA: {
1641 guint32 field_index = mono_metadata_token_index (patch_info->data.token->token);
1642 guint32 rva;
1643
1644 mono_metadata_field_info (patch_info->data.token->image, field_index - 1, NULL, &rva, NULL);
1645 target = mono_image_rva_map (patch_info->data.token->image, rva);
1646 break;
1647 }
1648 case MONO_PATCH_INFO_R4:
1649 case MONO_PATCH_INFO_R8:
1650 target = patch_info->data.target;
1651 break;
1652 case MONO_PATCH_INFO_EXC_NAME:
1653 target = patch_info->data.name;
1654 break;
1655 case MONO_PATCH_INFO_LDSTR:
1656 target =
1657 mono_ldstr (domain, patch_info->data.token->image,
1658 mono_metadata_token_index (patch_info->data.token->token));
1659 break;
1660 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
1661 gpointer handle;
1662 MonoClass *handle_class;
1663
1664 handle = mono_ldtoken_checked (patch_info->data.token->image,
1665 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL, error);
1666 if (!mono_error_ok (error))
1667 g_error ("Could not patch ldtoken due to %s", mono_error_get_message (error));
1668 mono_class_init (handle_class);
1669 mono_class_init (mono_class_from_mono_type ((MonoType *)handle));
1670
1671 target = mono_type_get_object_checked (domain, (MonoType *)handle, error);
1672 if (!mono_error_ok (error))
1673 return NULL;
1674 break;
1675 }
1676 case MONO_PATCH_INFO_LDTOKEN: {
1677 gpointer handle;
1678 MonoClass *handle_class;
1679
1680 handle = mono_ldtoken_checked (patch_info->data.token->image,
1681 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL, error);
1682 if (!mono_error_ok (error))
1683 g_error ("Could not patch ldtoken due to %s", mono_error_get_message (error));
1684 mono_class_init (handle_class);
1685
1686 target = handle;
1687 break;
1688 }
1689 case MONO_PATCH_INFO_DECLSEC:
1690 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
1691 break;
1692 case MONO_PATCH_INFO_ICALL_ADDR:
1693 /* run_cctors == 0 -> AOT */
1694 if (patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1695 const char *exc_class;
1696 const char *exc_arg;
1697
1698 if (run_cctors) {
1699 target = mono_lookup_pinvoke_call (patch_info->data.method, &exc_class, &exc_arg);
1700 if (!target) {
1701 if (mono_aot_only) {
1702 mono_error_set_exception_instance (error, mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
1703 return NULL;
1704 }
1705 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));
1706 }
1707 } else {
1708 target = NULL;
1709 }
1710 } else {
1711 target = mono_lookup_internal_call (patch_info->data.method);
1712
1713 if (!target && run_cctors)
1714 g_error ("Unregistered icall '%s'\n", mono_method_full_name (patch_info->data.method, TRUE));
1715 }
1716 break;
1717 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1718 target = mono_thread_interruption_request_flag ();
1719 break;
1720 case MONO_PATCH_INFO_METHOD_RGCTX: {
1721 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.method->klass);
1722 g_assert (vtable);
1723
1724 target = mono_method_lookup_rgctx (vtable, mini_method_get_context (patch_info->data.method)->method_inst);
1725 break;
1726 }
1727 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
1728 int slot = mini_get_rgctx_entry_slot (patch_info->data.rgctx_entry);
1729
1730 target = GINT_TO_POINTER (MONO_RGCTX_SLOT_INDEX (slot));
1731 break;
1732 }
1733 case MONO_PATCH_INFO_BB_OVF:
1734 case MONO_PATCH_INFO_EXC_OVF:
1735 case MONO_PATCH_INFO_GOT_OFFSET:
1736 case MONO_PATCH_INFO_NONE:
1737 break;
1738 case MONO_PATCH_INFO_RGCTX_FETCH: {
1739 int slot = mini_get_rgctx_entry_slot (patch_info->data.rgctx_entry);
1740
1741 target = mono_create_rgctx_lazy_fetch_trampoline (slot);
1742 break;
1743 }
1744 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
1745 case MONO_PATCH_INFO_SEQ_POINT_INFO:
1746 if (!run_cctors)
1747 /* AOT, not needed */
1748 target = NULL;
1749 else
1750 target = mono_arch_get_seq_point_info (domain, code);
1751 break;
1752 #endif
1753 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR: {
1754 int card_table_shift_bits;
1755 gpointer card_table_mask;
1756
1757 target = mono_gc_get_card_table (&card_table_shift_bits, &card_table_mask);
1758 break;
1759 }
1760 case MONO_PATCH_INFO_GC_NURSERY_START: {
1761 int shift_bits;
1762 size_t size;
1763
1764 target = mono_gc_get_nursery (&shift_bits, &size);
1765 break;
1766 }
1767 case MONO_PATCH_INFO_GC_NURSERY_BITS: {
1768 int shift_bits;
1769 size_t size;
1770
1771 mono_gc_get_nursery (&shift_bits, &size);
1772
1773 target = (gpointer)(mgreg_t)shift_bits;
1774 break;
1775 }
1776 case MONO_PATCH_INFO_CASTCLASS_CACHE: {
1777 target = mono_domain_alloc0 (domain, sizeof (gpointer));
1778 break;
1779 }
1780 case MONO_PATCH_INFO_JIT_TLS_ID: {
1781 target = (gpointer) (size_t) mono_jit_tls_id;
1782 break;
1783 }
1784 case MONO_PATCH_INFO_TLS_OFFSET: {
1785 int offset;
1786
1787 offset = mini_get_tls_offset ((MonoTlsKey)GPOINTER_TO_INT (patch_info->data.target));
1788 #ifdef MONO_ARCH_HAVE_TRANSLATE_TLS_OFFSET
1789 offset = mono_arch_translate_tls_offset (offset);
1790 #endif
1791 target = GINT_TO_POINTER (offset);
1792 break;
1793 }
1794 case MONO_PATCH_INFO_OBJC_SELECTOR_REF: {
1795 target = NULL;
1796 break;
1797 }
1798 case MONO_PATCH_INFO_LDSTR_LIT: {
1799 int len;
1800 char *s;
1801
1802 len = strlen ((const char *)patch_info->data.target);
1803 s = (char *)mono_domain_alloc0 (domain, len + 1);
1804 memcpy (s, patch_info->data.target, len);
1805 target = s;
1806
1807 break;
1808 }
1809 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
1810 target = mini_get_gsharedvt_wrapper (TRUE, NULL, patch_info->data.sig, NULL, -1, FALSE);
1811 break;
1812 default:
1813 g_assert_not_reached ();
1814 }
1815
1816 return (gpointer)target;
1817 }
1818
1819 void
1820 mini_init_gsctx (MonoDomain *domain, MonoMemPool *mp, MonoGenericContext *context, MonoGenericSharingContext *gsctx)
1821 {
1822 MonoGenericInst *inst;
1823 int i;
1824
1825 memset (gsctx, 0, sizeof (MonoGenericSharingContext));
1826
1827 if (context && context->class_inst) {
1828 inst = context->class_inst;
1829 for (i = 0; i < inst->type_argc; ++i) {
1830 MonoType *type = inst->type_argv [i];
1831
1832 if (mini_is_gsharedvt_gparam (type))
1833 gsctx->is_gsharedvt = TRUE;
1834 }
1835 }
1836 if (context && context->method_inst) {
1837 inst = context->method_inst;
1838
1839 for (i = 0; i < inst->type_argc; ++i) {
1840 MonoType *type = inst->type_argv [i];
1841
1842 if (mini_is_gsharedvt_gparam (type))
1843 gsctx->is_gsharedvt = TRUE;
1844 }
1845 }
1846 }
1847
1848 /*
1849 * LOCKING: Acquires the jit code hash lock.
1850 */
1851 MonoJitInfo*
1852 mini_lookup_method (MonoDomain *domain, MonoMethod *method, MonoMethod *shared)
1853 {
1854 MonoJitInfo *ji;
1855 static gboolean inited = FALSE;
1856 static int lookups = 0;
1857 static int failed_lookups = 0;
1858
1859 mono_domain_jit_code_hash_lock (domain);
1860 ji = (MonoJitInfo *)mono_internal_hash_table_lookup (&domain->jit_code_hash, method);
1861 if (!ji && shared) {
1862 /* Try generic sharing */
1863 ji = (MonoJitInfo *)mono_internal_hash_table_lookup (&domain->jit_code_hash, shared);
1864 if (ji && !ji->has_generic_jit_info)
1865 ji = NULL;
1866 if (!inited) {
1867 mono_counters_register ("Shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &lookups);
1868 mono_counters_register ("Failed shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &failed_lookups);
1869 inited = TRUE;
1870 }
1871
1872 ++lookups;
1873 if (!ji)
1874 ++failed_lookups;
1875 }
1876 mono_domain_jit_code_hash_unlock (domain);
1877
1878 return ji;
1879 }
1880
1881 static MonoJitInfo*
1882 lookup_method (MonoDomain *domain, MonoMethod *method)
1883 {
1884 MonoJitInfo *ji;
1885 MonoMethod *shared;
1886
1887 ji = mini_lookup_method (domain, method, NULL);
1888
1889 if (!ji) {
1890 if (!mono_method_is_generic_sharable (method, FALSE))
1891 return NULL;
1892 shared = mini_get_shared_method (method);
1893 ji = mini_lookup_method (domain, method, shared);
1894 }
1895
1896 return ji;
1897 }
1898
1899 MonoJitInfo *
1900 mono_get_jit_info_from_method (MonoDomain *domain, MonoMethod *method)
1901 {
1902 return lookup_method (domain, method);
1903 }
1904
1905 #if ENABLE_JIT_MAP
1906 static FILE* perf_map_file;
1907
1908 void
1909 mono_enable_jit_map (void)
1910 {
1911 if (!perf_map_file) {
1912 char name [64];
1913 g_snprintf (name, sizeof (name), "/tmp/perf-%d.map", getpid ());
1914 unlink (name);
1915 perf_map_file = fopen (name, "w");
1916 }
1917 }
1918
1919 void
1920 mono_emit_jit_tramp (void *start, int size, const char *desc)
1921 {
1922 if (perf_map_file)
1923 fprintf (perf_map_file, "%llx %x %s\n", (long long unsigned int)(gsize)start, size, desc);
1924 }
1925
1926 void
1927 mono_emit_jit_map (MonoJitInfo *jinfo)
1928 {
1929 if (perf_map_file) {
1930 char *name = mono_method_full_name (jinfo_get_method (jinfo), TRUE);
1931 mono_emit_jit_tramp (jinfo->code_start, jinfo->code_size, name);
1932 g_free (name);
1933 }
1934 }
1935
1936 gboolean
1937 mono_jit_map_is_enabled (void)
1938 {
1939 return perf_map_file != NULL;
1940 }
1941
1942 #endif
1943
1944 static void
1945 no_gsharedvt_in_wrapper (void)
1946 {
1947 g_assert_not_reached ();
1948 }
1949
1950 static gpointer
1951 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoError *error)
1952 {
1953 MonoDomain *target_domain, *domain = mono_domain_get ();
1954 MonoJitInfo *info;
1955 gpointer code = NULL, p;
1956 MonoJitInfo *ji;
1957 MonoJitICallInfo *callinfo = NULL;
1958 WrapperInfo *winfo = NULL;
1959
1960 mono_error_init (error);
1961
1962 /*
1963 * ICALL wrappers are handled specially, since there is only one copy of them
1964 * shared by all appdomains.
1965 */
1966 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
1967 winfo = mono_marshal_get_wrapper_info (method);
1968 if (winfo && winfo->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1969 callinfo = mono_find_jit_icall_by_addr (winfo->d.icall.func);
1970 g_assert (callinfo);
1971
1972 /* Must be domain neutral since there is only one copy */
1973 opt |= MONO_OPT_SHARED;
1974 } else {
1975 /* MONO_OPT_SHARED is no longer supported, we only use it for icall wrappers */
1976 opt &= ~MONO_OPT_SHARED;
1977 }
1978
1979 if (opt & MONO_OPT_SHARED)
1980 target_domain = mono_get_root_domain ();
1981 else
1982 target_domain = domain;
1983
1984 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
1985 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
1986
1987 g_assert (info);
1988 if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
1989 MonoGenericContext *ctx = NULL;
1990 if (method->is_inflated)
1991 ctx = mono_method_get_context (method);
1992 method = info->d.synchronized_inner.method;
1993 if (ctx) {
1994 method = mono_class_inflate_generic_method_checked (method, ctx, error);
1995 g_assert (mono_error_ok (error)); /* FIXME don't swallow the error */
1996 }
1997 }
1998 }
1999
2000 info = lookup_method (target_domain, method);
2001 if (info) {
2002 /* We can't use a domain specific method in another domain */
2003 if (! ((domain != target_domain) && !info->domain_neutral)) {
2004 MonoVTable *vtable;
2005
2006 mono_jit_stats.methods_lookups++;
2007 vtable = mono_class_vtable (domain, method->klass);
2008 g_assert (vtable);
2009 if (!mono_runtime_class_init_full (vtable, error))
2010 return NULL;
2011 return mono_create_ftnptr (target_domain, info->code_start);
2012 }
2013 }
2014
2015 #ifdef MONO_USE_AOT_COMPILER
2016 if (opt & MONO_OPT_AOT) {
2017 MonoDomain *domain = mono_domain_get ();
2018
2019 mono_class_init (method->klass);
2020
2021 if ((code = mono_aot_get_method (domain, method))) {
2022 MonoVTable *vtable;
2023
2024 /*
2025 * In llvm-only mode, method might be a shared method, so we can't initialize its class.
2026 * This is not a problem, since it will be initialized when the method is first
2027 * called by init_method ().
2028 */
2029 if (!mono_llvm_only) {
2030 vtable = mono_class_vtable (domain, method->klass);
2031 g_assert (vtable);
2032 if (!mono_runtime_class_init_full (vtable, error))
2033 return NULL;
2034 }
2035 }
2036 }
2037 #endif
2038
2039 if (!code && mono_llvm_only) {
2040 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
2041 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2042
2043 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
2044 /*
2045 * These wrappers are only created for signatures which are in the program, but
2046 * sometimes we load methods too eagerly and have to create them even if they
2047 * will never be called.
2048 */
2049 return no_gsharedvt_in_wrapper;
2050 }
2051 }
2052 }
2053
2054 if (!code)
2055 code = mono_jit_compile_method_inner (method, target_domain, opt, error);
2056 if (!mono_error_ok (error))
2057 return NULL;
2058
2059 if (!code && mono_llvm_only) {
2060 printf ("AOT method not found in llvmonly mode: %s\n", mono_method_full_name (method, 1));
2061 g_assert_not_reached ();
2062 }
2063
2064 if (!code)
2065 return NULL;
2066
2067 if (method->wrapper_type == MONO_WRAPPER_WRITE_BARRIER || method->wrapper_type == MONO_WRAPPER_ALLOC) {
2068 MonoDomain *d;
2069
2070 /*
2071 * SGEN requires the JIT info for these methods to be registered, see is_ip_in_managed_allocator ().
2072 */
2073 ji = mini_jit_info_table_find (mono_domain_get (), (char *)code, &d);
2074 g_assert (ji);
2075 }
2076
2077 p = mono_create_ftnptr (target_domain, code);
2078
2079 if (callinfo) {
2080 /*mono_register_jit_icall_wrapper takes the loader lock, so we take it on the outside. */
2081 mono_loader_lock ();
2082 mono_jit_lock ();
2083 if (!callinfo->wrapper) {
2084 callinfo->wrapper = p;
2085 mono_register_jit_icall_wrapper (callinfo, p);
2086 }
2087 mono_jit_unlock ();
2088 mono_loader_unlock ();
2089 }
2090
2091 return p;
2092 }
2093
2094 gpointer
2095 mono_jit_compile_method (MonoMethod *method, MonoError *error)
2096 {
2097 gpointer code;
2098
2099 code = mono_jit_compile_method_with_opt (method, mono_get_optimizations_for_method (method, default_opt), error);
2100 return code;
2101 }
2102
2103 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
2104 static void
2105 invalidated_delegate_trampoline (char *desc)
2106 {
2107 g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
2108 "See http://www.mono-project.com/Diagnostic:Delegate for an explanation and ways to fix this.",
2109 desc);
2110 }
2111 #endif
2112
2113 /*
2114 * mono_jit_free_method:
2115 *
2116 * Free all memory allocated by the JIT for METHOD.
2117 */
2118 static void
2119 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
2120 {
2121 MonoJitDynamicMethodInfo *ji;
2122 gboolean destroy = TRUE;
2123 GHashTableIter iter;
2124 MonoJumpList *jlist;
2125
2126 g_assert (method->dynamic);
2127
2128 mono_domain_lock (domain);
2129 ji = mono_dynamic_code_hash_lookup (domain, method);
2130 mono_domain_unlock (domain);
2131
2132 if (!ji)
2133 return;
2134
2135 mono_debug_remove_method (method, domain);
2136
2137 mono_domain_lock (domain);
2138 g_hash_table_remove (domain_jit_info (domain)->dynamic_code_hash, method);
2139 mono_domain_jit_code_hash_lock (domain);
2140 mono_internal_hash_table_remove (&domain->jit_code_hash, method);
2141 mono_domain_jit_code_hash_unlock (domain);
2142 g_hash_table_remove (domain_jit_info (domain)->jump_trampoline_hash, method);
2143
2144 /* requires the domain lock - took above */
2145 mono_conc_hashtable_remove (domain_jit_info (domain)->runtime_invoke_hash, method);
2146
2147 /* Remove jump targets in this method */
2148 g_hash_table_iter_init (&iter, domain_jit_info (domain)->jump_target_hash);
2149 while (g_hash_table_iter_next (&iter, NULL, (void**)&jlist)) {
2150 GSList *tmp, *remove;
2151
2152 remove = NULL;
2153 for (tmp = jlist->list; tmp; tmp = tmp->next) {
2154 guint8 *ip = (guint8 *)tmp->data;
2155
2156 if (ip >= (guint8*)ji->ji->code_start && ip < (guint8*)ji->ji->code_start + ji->ji->code_size)
2157 remove = g_slist_prepend (remove, tmp);
2158 }
2159 for (tmp = remove; tmp; tmp = tmp->next) {
2160 jlist->list = g_slist_delete_link ((GSList *)jlist->list, (GSList *)tmp->data);
2161 }
2162 g_slist_free (remove);
2163 }
2164
2165 mono_domain_unlock (domain);
2166
2167 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
2168 if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
2169 /*
2170 * Instead of freeing the code, change it to call an error routine
2171 * so people can fix their code.
2172 */
2173 char *type = mono_type_full_name (&method->klass->byval_arg);
2174 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
2175
2176 g_free (type);
2177 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
2178 destroy = FALSE;
2179 }
2180 #endif
2181
2182 /*
2183 * This needs to be done before freeing code_mp, since the code address is the
2184 * key in the table, so if we free the code_mp first, another thread can grab the
2185 * same code address and replace our entry in the table.
2186 */
2187 mono_jit_info_table_remove (domain, ji->ji);
2188
2189 if (destroy)
2190 mono_code_manager_destroy (ji->code_mp);
2191 g_free (ji);
2192 }
2193
2194 gpointer
2195 mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji)
2196 {
2197 MonoDomain *target_domain;
2198 MonoJitInfo *info;
2199
2200 if (default_opt & MONO_OPT_SHARED)
2201 target_domain = mono_get_root_domain ();
2202 else
2203 target_domain = domain;
2204
2205 info = lookup_method (target_domain, method);
2206 if (info) {
2207 /* We can't use a domain specific method in another domain */
2208 if (! ((domain != target_domain) && !info->domain_neutral)) {
2209 mono_jit_stats.methods_lookups++;
2210 if (ji)
2211 *ji = info;
2212 return info->code_start;
2213 }
2214 }
2215
2216 if (ji)
2217 *ji = NULL;
2218 return NULL;
2219 }
2220
2221 static guint32 bisect_opt = 0;
2222 static GHashTable *bisect_methods_hash = NULL;
2223
2224 void
2225 mono_set_bisect_methods (guint32 opt, const char *method_list_filename)
2226 {
2227 FILE *file;
2228 char method_name [2048];
2229
2230 bisect_opt = opt;
2231 bisect_methods_hash = g_hash_table_new (g_str_hash, g_str_equal);
2232 g_assert (bisect_methods_hash);
2233
2234 file = fopen (method_list_filename, "r");
2235 g_assert (file);
2236
2237 while (fgets (method_name, sizeof (method_name), file)) {
2238 size_t len = strlen (method_name);
2239 g_assert (len > 0);
2240 g_assert (method_name [len - 1] == '\n');
2241 method_name [len - 1] = 0;
2242 g_hash_table_insert (bisect_methods_hash, g_strdup (method_name), GINT_TO_POINTER (1));
2243 }
2244 g_assert (feof (file));
2245 }
2246
2247 gboolean mono_do_single_method_regression = FALSE;
2248 guint32 mono_single_method_regression_opt = 0;
2249 MonoMethod *mono_current_single_method;
2250 GSList *mono_single_method_list;
2251 GHashTable *mono_single_method_hash;
2252
2253 guint32
2254 mono_get_optimizations_for_method (MonoMethod *method, guint32 default_opt)
2255 {
2256 g_assert (method);
2257
2258 if (bisect_methods_hash) {
2259 char *name = mono_method_full_name (method, TRUE);
2260 void *res = g_hash_table_lookup (bisect_methods_hash, name);
2261 g_free (name);
2262 if (res)
2263 return default_opt | bisect_opt;
2264 }
2265 if (!mono_do_single_method_regression)
2266 return default_opt;
2267 if (!mono_current_single_method) {
2268 if (!mono_single_method_hash)
2269 mono_single_method_hash = g_hash_table_new (g_direct_hash, g_direct_equal);
2270 if (!g_hash_table_lookup (mono_single_method_hash, method)) {
2271 g_hash_table_insert (mono_single_method_hash, method, method);
2272 mono_single_method_list = g_slist_prepend (mono_single_method_list, method);
2273 }
2274 return default_opt;
2275 }
2276 if (method == mono_current_single_method)
2277 return mono_single_method_regression_opt;
2278 return default_opt;
2279 }
2280
2281 gpointer
2282 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
2283 {
2284 return mono_jit_find_compiled_method_with_jit_info (domain, method, NULL);
2285 }
2286
2287 typedef struct {
2288 MonoMethod *method;
2289 gpointer compiled_method;
2290 gpointer runtime_invoke;
2291 MonoVTable *vtable;
2292 MonoDynCallInfo *dyn_call_info;
2293 MonoClass *ret_box_class;
2294 MonoMethodSignature *sig;
2295 gboolean gsharedvt_invoke;
2296 gpointer *wrapper_arg;
2297 } RuntimeInvokeInfo;
2298
2299 static RuntimeInvokeInfo*
2300 create_runtime_invoke_info (MonoDomain *domain, MonoMethod *method, gpointer compiled_method, gboolean callee_gsharedvt, MonoError *error)
2301 {
2302 MonoMethod *invoke;
2303 RuntimeInvokeInfo *info;
2304
2305 info = g_new0 (RuntimeInvokeInfo, 1);
2306 info->compiled_method = compiled_method;
2307 info->sig = mono_method_signature (method);
2308
2309 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
2310 info->vtable = mono_class_vtable_full (domain, method->klass, error);
2311 if (!mono_error_ok (error))
2312 return NULL;
2313 g_assert (info->vtable);
2314
2315 MonoMethodSignature *sig = mono_method_signature (method);
2316 MonoType *ret_type;
2317
2318 /*
2319 * We want to avoid AOTing 1000s of runtime-invoke wrappers when running
2320 * in full-aot mode, so we use a slower, but more generic wrapper if
2321 * possible, built on top of the OP_DYN_CALL opcode provided by the JIT.
2322 */
2323 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2324 if (!mono_llvm_only && (mono_aot_only || debug_options.dyn_runtime_invoke)) {
2325 gboolean supported = TRUE;
2326 int i;
2327
2328 if (method->string_ctor)
2329 sig = mono_marshal_get_string_ctor_signature (method);
2330
2331 for (i = 0; i < sig->param_count; ++i) {
2332 MonoType *t = sig->params [i];
2333
2334 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
2335 supported = FALSE;
2336 }
2337
2338 if (mono_class_is_contextbound (method->klass) || !info->compiled_method)
2339 supported = FALSE;
2340
2341 if (supported)
2342 info->dyn_call_info = mono_arch_dyn_call_prepare (sig);
2343 }
2344 #endif
2345
2346 ret_type = sig->ret;
2347 switch (ret_type->type) {
2348 case MONO_TYPE_VOID:
2349 break;
2350 case MONO_TYPE_I1:
2351 case MONO_TYPE_U1:
2352 case MONO_TYPE_I2:
2353 case MONO_TYPE_U2:
2354 case MONO_TYPE_I4:
2355 case MONO_TYPE_U4:
2356 case MONO_TYPE_I:
2357 case MONO_TYPE_U:
2358 case MONO_TYPE_I8:
2359 case MONO_TYPE_U8:
2360 case MONO_TYPE_BOOLEAN:
2361 case MONO_TYPE_CHAR:
2362 case MONO_TYPE_R4:
2363 case MONO_TYPE_R8:
2364 info->ret_box_class = mono_class_from_mono_type (ret_type);
2365 break;
2366 case MONO_TYPE_PTR:
2367 info->ret_box_class = mono_defaults.int_class;
2368 break;
2369 case MONO_TYPE_STRING:
2370 case MONO_TYPE_CLASS:
2371 case MONO_TYPE_ARRAY:
2372 case MONO_TYPE_SZARRAY:
2373 case MONO_TYPE_OBJECT:
2374 break;
2375 case MONO_TYPE_GENERICINST:
2376 if (!MONO_TYPE_IS_REFERENCE (ret_type))
2377 info->ret_box_class = mono_class_from_mono_type (ret_type);
2378 break;
2379 case MONO_TYPE_VALUETYPE:
2380 info->ret_box_class = mono_class_from_mono_type (ret_type);
2381 break;
2382 default:
2383 g_assert_not_reached ();
2384 break;
2385 }
2386
2387 if (!info->dyn_call_info) {
2388 if (mono_llvm_only) {
2389 #ifndef ENABLE_GSHAREDVT
2390 g_assert_not_reached ();
2391 #endif
2392 info->gsharedvt_invoke = TRUE;
2393 if (!callee_gsharedvt) {
2394 /* Invoke a gsharedvt out wrapper instead */
2395 MonoMethod *wrapper = mini_get_gsharedvt_out_sig_wrapper (sig);
2396 MonoMethodSignature *wrapper_sig = mini_get_gsharedvt_out_sig_wrapper_signature (sig->hasthis, sig->ret->type != MONO_TYPE_VOID, sig->param_count);
2397
2398 info->wrapper_arg = g_malloc0 (2 * sizeof (gpointer));
2399 info->wrapper_arg [0] = mini_add_method_wrappers_llvmonly (method, info->compiled_method, FALSE, FALSE, &(info->wrapper_arg [1]));
2400
2401 /* Pass has_rgctx == TRUE since the wrapper has an extra arg */
2402 invoke = mono_marshal_get_runtime_invoke_for_sig (wrapper_sig);
2403 g_free (wrapper_sig);
2404
2405 info->compiled_method = mono_jit_compile_method (wrapper, error);
2406 if (!mono_error_ok (error)) {
2407 g_free (info);
2408 return NULL;
2409 }
2410 } else {
2411 /* Gsharedvt methods can be invoked the same way */
2412 /* The out wrapper has the same signature as the compiled gsharedvt method */
2413 MonoMethodSignature *wrapper_sig = mini_get_gsharedvt_out_sig_wrapper_signature (sig->hasthis, sig->ret->type != MONO_TYPE_VOID, sig->param_count);
2414
2415 info->wrapper_arg = mono_method_needs_static_rgctx_invoke (method, TRUE) ? mini_method_get_rgctx (method) : NULL;
2416
2417 invoke = mono_marshal_get_runtime_invoke_for_sig (wrapper_sig);
2418 g_free (wrapper_sig);
2419 }
2420 }
2421 info->runtime_invoke = mono_jit_compile_method (invoke, error);
2422 if (!mono_error_ok (error)) {
2423 g_free (info);
2424 return NULL;
2425 }
2426 }
2427
2428 return info;
2429 }
2430
2431 static MonoObject*
2432 mono_llvmonly_runtime_invoke (MonoMethod *method, RuntimeInvokeInfo *info, void *obj, void **params, MonoObject **exc, MonoError *error)
2433 {
2434 MonoMethodSignature *sig = info->sig;
2435 MonoDomain *domain = mono_domain_get ();
2436 MonoObject *(*runtime_invoke) (MonoObject *this_obj, void **params, MonoObject **exc, void* compiled_method);
2437 gpointer *args;
2438 gpointer retval_ptr;
2439 guint8 retval [256];
2440 gpointer *param_refs;
2441 int i, pindex;
2442
2443 mono_error_init (error);
2444
2445 g_assert (info->gsharedvt_invoke);
2446
2447 /*
2448 * Instead of invoking the method directly, we invoke a gsharedvt out wrapper.
2449 * The advantage of this is the gsharedvt out wrappers have a reduced set of
2450 * signatures, so we only have to generate runtime invoke wrappers for these
2451 * signatures.
2452 * This code also handles invocation of gsharedvt methods directly, no
2453 * out wrappers are used in that case.
2454 */
2455 args = (void **)g_alloca ((sig->param_count + sig->hasthis + 2) * sizeof (gpointer));
2456 param_refs = (gpointer*)g_alloca ((sig->param_count + sig->hasthis + 2) * sizeof (gpointer));
2457 pindex = 0;
2458 /*
2459 * The runtime invoke wrappers expects pointers to primitive types, so have to
2460 * use indirections.
2461 */
2462 if (sig->hasthis)
2463 args [pindex ++] = &obj;
2464 if (sig->ret->type != MONO_TYPE_VOID) {
2465 retval_ptr = (gpointer)&retval;
2466 args [pindex ++] = &retval_ptr;
2467 }
2468 for (i = 0; i < sig->param_count; ++i) {
2469 MonoType *t = sig->params [i];
2470
2471 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
2472 MonoClass *klass = mono_class_from_mono_type (t);
2473 guint8 *nullable_buf;
2474 int size;
2475
2476 size = mono_class_value_size (klass, NULL);
2477 nullable_buf = g_alloca (size);
2478 g_assert (nullable_buf);
2479
2480 /* The argument pointed to by params [i] is either a boxed vtype or null */
2481 mono_nullable_init (nullable_buf, (MonoObject*)params [i], klass);
2482 params [i] = nullable_buf;
2483 }
2484
2485 if (!t->byref && (MONO_TYPE_IS_REFERENCE (t) || t->type == MONO_TYPE_PTR)) {
2486 param_refs [i] = params [i];
2487 params [i] = &(param_refs [i]);
2488 }
2489 args [pindex ++] = &params [i];
2490 }
2491 /* The gsharedvt out wrapper has an extra argument which contains the method to call */
2492 args [pindex ++] = &info->wrapper_arg;
2493
2494 runtime_invoke = (MonoObject *(*)(MonoObject *, void **, MonoObject **, void *))info->runtime_invoke;
2495
2496 runtime_invoke (NULL, args, exc, info->compiled_method);
2497 if (exc && *exc)
2498 mono_error_set_exception_instance (error, (MonoException*) *exc);
2499
2500 if (sig->ret->type != MONO_TYPE_VOID && info->ret_box_class)
2501 return mono_value_box (domain, info->ret_box_class, retval);
2502 else
2503 return *(MonoObject**)retval;
2504 }
2505
2506 /**
2507 * mono_jit_runtime_invoke:
2508 * @method: the method to invoke
2509 * @obj: this pointer
2510 * @params: array of parameter values.
2511 * @exc: Set to the exception raised in the managed method. If NULL, error is thrown instead.
2512 * If coop is enabled, this argument is ignored - all exceptoins are caught and propagated
2513 * through @error
2514 * @error: error or caught exception object
2515 */
2516 static MonoObject*
2517 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc, MonoError *error)
2518 {
2519 MonoMethod *invoke, *callee;
2520 MonoObject *(*runtime_invoke) (MonoObject *this_obj, void **params, MonoObject **exc, void* compiled_method);
2521 MonoDomain *domain = mono_domain_get ();
2522 MonoJitDomainInfo *domain_info;
2523 RuntimeInvokeInfo *info, *info2;
2524 MonoJitInfo *ji = NULL;
2525 gboolean callee_gsharedvt = FALSE;
2526
2527 mono_error_init (error);
2528
2529 if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
2530 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
2531 return NULL;
2532 }
2533
2534 domain_info = domain_jit_info (domain);
2535
2536 info = (RuntimeInvokeInfo *)mono_conc_hashtable_lookup (domain_info->runtime_invoke_hash, method);
2537
2538 if (!info) {
2539 if (mono_security_core_clr_enabled ()) {
2540 /*
2541 * This might be redundant since mono_class_vtable () already does this,
2542 * but keep it just in case for moonlight.
2543 */
2544 mono_class_setup_vtable (method->klass);
2545 if (mono_class_has_failure (method->klass)) {
2546 MonoException *fail_exc = mono_class_get_exception_for_failure (method->klass);
2547 if (exc)
2548 *exc = (MonoObject*)fail_exc;
2549 mono_error_set_exception_instance (error, fail_exc);
2550 return NULL;
2551 }
2552 }
2553
2554 gpointer compiled_method;
2555
2556 callee = method;
2557 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
2558 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
2559 /*
2560 * Array Get/Set/Address methods. The JIT implements them using inline code
2561 * inside the runtime invoke wrappers, so no need to compile them.
2562 */
2563 if (mono_aot_only) {
2564 /*
2565 * Call a wrapper, since the runtime invoke wrapper was not generated.
2566 */
2567 MonoMethod *wrapper;
2568
2569 wrapper = mono_marshal_get_array_accessor_wrapper (method);
2570 invoke = mono_marshal_get_runtime_invoke (wrapper, FALSE);
2571 callee = wrapper;
2572 } else {
2573 callee = NULL;
2574 }
2575 }
2576
2577 if (callee) {
2578 compiled_method = mono_jit_compile_method_with_opt (callee, mono_get_optimizations_for_method (callee, default_opt), error);
2579 if (!compiled_method) {
2580 g_assert (!mono_error_ok (error));
2581 return NULL;
2582 }
2583
2584 if (mono_llvm_only) {
2585 ji = mini_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (compiled_method), NULL);
2586 callee_gsharedvt = mini_jit_info_is_gsharedvt (ji);
2587 if (callee_gsharedvt)
2588 callee_gsharedvt = mini_is_gsharedvt_variable_signature (mono_method_signature (jinfo_get_method (ji)));
2589 }
2590
2591 if (!callee_gsharedvt)
2592 compiled_method = mini_add_method_trampoline (callee, compiled_method, mono_method_needs_static_rgctx_invoke (callee, TRUE), FALSE);
2593 } else {
2594 compiled_method = NULL;
2595 }
2596
2597 info = create_runtime_invoke_info (domain, method, compiled_method, callee_gsharedvt, error);
2598 if (!mono_error_ok (error))
2599 return NULL;
2600
2601 mono_domain_lock (domain);
2602 info2 = (RuntimeInvokeInfo *)mono_conc_hashtable_insert (domain_info->runtime_invoke_hash, method, info);
2603 mono_domain_unlock (domain);
2604 if (info2) {
2605 g_free (info);
2606 info = info2;
2607 }
2608 }
2609
2610 /*
2611 * We need this here because mono_marshal_get_runtime_invoke can place
2612 * the helper method in System.Object and not the target class.
2613 */
2614 if (!mono_runtime_class_init_full (info->vtable, error)) {
2615 if (exc)
2616 *exc = (MonoObject*) mono_error_convert_to_exception (error);
2617 return NULL;
2618 }
2619
2620 /* If coop is enabled, and the caller didn't ask for the exception to be caught separately,
2621 we always catch the exception and propagate it through the MonoError */
2622 gboolean catchExcInMonoError =
2623 (exc == NULL) && mono_threads_is_coop_enabled ();
2624 MonoObject *invoke_exc = NULL;
2625 if (catchExcInMonoError)
2626 exc = &invoke_exc;
2627
2628 /* The wrappers expect this to be initialized to NULL */
2629 if (exc)
2630 *exc = NULL;
2631
2632 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2633 if (info->dyn_call_info) {
2634 MonoMethodSignature *sig = mono_method_signature (method);
2635 gpointer *args;
2636 static RuntimeInvokeDynamicFunction dyn_runtime_invoke;
2637 int i, pindex;
2638 guint8 buf [512];
2639 guint8 retval [256];
2640
2641 if (!dyn_runtime_invoke) {
2642 invoke = mono_marshal_get_runtime_invoke_dynamic ();
2643 dyn_runtime_invoke = (RuntimeInvokeDynamicFunction)mono_jit_compile_method (invoke, error);
2644 if (!mono_error_ok (error))
2645 return NULL;
2646 }
2647
2648 /* Convert the arguments to the format expected by start_dyn_call () */
2649 args = (void **)g_alloca ((sig->param_count + sig->hasthis) * sizeof (gpointer));
2650 pindex = 0;
2651 if (sig->hasthis)
2652 args [pindex ++] = &obj;
2653 for (i = 0; i < sig->param_count; ++i) {
2654 MonoType *t = sig->params [i];
2655
2656 if (t->byref) {
2657 args [pindex ++] = &params [i];
2658 } else if (MONO_TYPE_IS_REFERENCE (t) || t->type == MONO_TYPE_PTR) {
2659 args [pindex ++] = &params [i];
2660 } else {
2661 args [pindex ++] = params [i];
2662 }
2663 }
2664
2665 //printf ("M: %s\n", mono_method_full_name (method, TRUE));
2666
2667 mono_arch_start_dyn_call (info->dyn_call_info, (gpointer**)args, retval, buf, sizeof (buf));
2668
2669 dyn_runtime_invoke (buf, exc, info->compiled_method);
2670 if (catchExcInMonoError && *exc != NULL)
2671 mono_error_set_exception_instance (error, (MonoException*) *exc);
2672
2673 mono_arch_finish_dyn_call (info->dyn_call_info, buf);
2674
2675 if (info->ret_box_class)
2676 return mono_value_box (domain, info->ret_box_class, retval);
2677 else
2678 return *(MonoObject**)retval;
2679 }
2680 #endif
2681
2682 if (mono_llvm_only)
2683 return mono_llvmonly_runtime_invoke (method, info, obj, params, exc, error);
2684
2685 runtime_invoke = (MonoObject *(*)(MonoObject *, void **, MonoObject **, void *))info->runtime_invoke;
2686
2687 MonoObject *result = runtime_invoke ((MonoObject *)obj, params, exc, info->compiled_method);
2688 if (catchExcInMonoError && *exc != NULL)
2689 mono_error_set_exception_instance (error, (MonoException*) *exc);
2690 return result;
2691 }
2692
2693 typedef struct {
2694 MonoVTable *vtable;
2695 int slot;
2696 } IMTThunkInfo;
2697
2698 typedef gpointer (*IMTThunkFunc) (gpointer *arg, MonoMethod *imt_method);
2699
2700 /*
2701 * mini_llvmonly_initial_imt_thunk:
2702 *
2703 * This function is called the first time a call is made through an IMT thunk.
2704 * It should have the same signature as the mono_llvmonly_imt_thunk_... functions.
2705 */
2706 static gpointer
2707 mini_llvmonly_initial_imt_thunk (gpointer *arg, MonoMethod *imt_method)
2708 {
2709 IMTThunkInfo *info = (IMTThunkInfo*)arg;
2710 gpointer *imt;
2711 gpointer *ftndesc;
2712 IMTThunkFunc func;
2713
2714 mono_vtable_build_imt_slot (info->vtable, info->slot);
2715
2716 imt = (gpointer*)info->vtable;
2717 imt -= MONO_IMT_SIZE;
2718
2719 /* Return what the real IMT thunk returns */
2720 ftndesc = imt [info->slot];
2721 func = ftndesc [0];
2722
2723 if (func == (IMTThunkFunc)mini_llvmonly_initial_imt_thunk)
2724 /* Happens when the imt slot contains only a generic virtual method */
2725 return NULL;
2726 return func ((gpointer *)ftndesc [1], imt_method);
2727 }
2728
2729 /* This is called indirectly through an imt slot. */
2730 static gpointer
2731 mono_llvmonly_imt_thunk (gpointer *arg, MonoMethod *imt_method)
2732 {
2733 int i = 0;
2734
2735 /* arg points to an array created in mono_llvmonly_get_imt_thunk () */
2736 while (arg [i] && arg [i] != imt_method)
2737 i += 2;
2738 g_assert (arg [i]);
2739
2740 return arg [i + 1];
2741 }
2742
2743 /* Optimized versions of mono_llvmonly_imt_thunk () for different table sizes */
2744 static gpointer
2745 mono_llvmonly_imt_thunk_1 (gpointer *arg, MonoMethod *imt_method)
2746 {
2747 //g_assert (arg [0] == imt_method);
2748 return arg [1];
2749 }
2750
2751 static gpointer
2752 mono_llvmonly_imt_thunk_2 (gpointer *arg, MonoMethod *imt_method)
2753 {
2754 //g_assert (arg [0] == imt_method || arg [2] == imt_method);
2755 if (arg [0] == imt_method)
2756 return arg [1];
2757 else
2758 return arg [3];
2759 }
2760
2761 static gpointer
2762 mono_llvmonly_imt_thunk_3 (gpointer *arg, MonoMethod *imt_method)
2763 {
2764 //g_assert (arg [0] == imt_method || arg [2] == imt_method || arg [4] == imt_method);
2765 if (arg [0] == imt_method)
2766 return arg [1];
2767 else if (arg [2] == imt_method)
2768 return arg [3];
2769 else
2770 return arg [5];
2771 }
2772
2773 /*
2774 * A version of the imt thunk used for generic virtual/variant iface methods.
2775 * Unlikely a normal imt thunk, its possible that IMT_METHOD is not found
2776 * in the search table. The original JIT code had a 'fallback' trampoline it could
2777 * call, but we can't do that, so we just return NULL, and the compiled code
2778 * will handle it.
2779 */
2780 static gpointer
2781 mono_llvmonly_fallback_imt_thunk (gpointer *arg, MonoMethod *imt_method)
2782 {
2783 int i = 0;
2784
2785 while (arg [i] && arg [i] != imt_method)
2786 i += 2;
2787 if (!arg [i])
2788 return NULL;
2789
2790 return arg [i + 1];
2791 }
2792
2793 static gpointer
2794 mono_llvmonly_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
2795 {
2796 gpointer *buf;
2797 gpointer *res;
2798 int i, index, real_count;
2799 gboolean virtual_generic = FALSE;
2800
2801 /*
2802 * Create an array which is passed to the imt thunk functions.
2803 * The array contains MonoMethod-function descriptor pairs, terminated by a NULL entry.
2804 */
2805
2806 real_count = 0;
2807 for (i = 0; i < count; ++i) {
2808 MonoIMTCheckItem *item = imt_entries [i];
2809
2810 if (item->is_equals)
2811 real_count ++;
2812 if (item->has_target_code)
2813 virtual_generic = TRUE;
2814 }
2815
2816 /*
2817 * Initialize all vtable entries reachable from this imt slot, so the compiled
2818 * code doesn't have to check it.
2819 */
2820 for (i = 0; i < count; ++i) {
2821 MonoIMTCheckItem *item = imt_entries [i];
2822 int vt_slot;
2823
2824 if (!item->is_equals || item->has_target_code)
2825 continue;
2826 vt_slot = item->value.vtable_slot;
2827 mono_init_vtable_slot (vtable, vt_slot);
2828 }
2829
2830 /* Save the entries into an array */
2831 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
2832 index = 0;
2833 for (i = 0; i < count; ++i) {
2834 MonoIMTCheckItem *item = imt_entries [i];
2835
2836 if (!item->is_equals)
2837 continue;
2838
2839 g_assert (item->key);
2840 buf [(index * 2)] = item->key;
2841 if (item->has_target_code)
2842 buf [(index * 2) + 1] = item->value.target_code;
2843 else
2844 buf [(index * 2) + 1] = vtable->vtable [item->value.vtable_slot];
2845 index ++;
2846 }
2847 buf [(index * 2)] = NULL;
2848 buf [(index * 2) + 1] = fail_tramp;
2849
2850 /*
2851 * Return a function descriptor for a C function with 'buf' as its argument.
2852 * It will by called by JITted code.
2853 */
2854 res = (void **)mono_domain_alloc (domain, 2 * sizeof (gpointer));
2855 switch (real_count) {
2856 case 1:
2857 res [0] = mono_llvmonly_imt_thunk_1;
2858 break;
2859 case 2:
2860 res [0] = mono_llvmonly_imt_thunk_2;
2861 break;
2862 case 3:
2863 res [0] = mono_llvmonly_imt_thunk_3;
2864 break;
2865 default:
2866 res [0] = mono_llvmonly_imt_thunk;
2867 break;
2868 }
2869 if (virtual_generic || fail_tramp)
2870 res [0] = mono_llvmonly_fallback_imt_thunk;
2871 res [1] = buf;
2872
2873 return res;
2874 }
2875
2876 MONO_SIG_HANDLER_FUNC (, mono_sigfpe_signal_handler)
2877 {
2878 MonoException *exc = NULL;
2879 MonoJitInfo *ji;
2880 MONO_SIG_HANDLER_INFO_TYPE *info = MONO_SIG_HANDLER_GET_INFO ();
2881 MONO_SIG_HANDLER_GET_CONTEXT;
2882
2883 ji = mono_jit_info_table_find_internal (mono_domain_get (), (char *)mono_arch_ip_from_context (ctx), TRUE, TRUE);
2884
2885 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
2886 if (mono_arch_is_int_overflow (ctx, info))
2887 /*
2888 * The spec says this throws ArithmeticException, but MS throws the derived
2889 * OverflowException.
2890 */
2891 exc = mono_get_exception_overflow ();
2892 else
2893 exc = mono_get_exception_divide_by_zero ();
2894 #else
2895 exc = mono_get_exception_divide_by_zero ();
2896 #endif
2897
2898 if (!ji) {
2899 if (!mono_do_crash_chaining && mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
2900 return;
2901
2902 mono_handle_native_sigsegv (SIGSEGV, ctx, info);
2903 if (mono_do_crash_chaining) {
2904 mono_chain_signal (MONO_SIG_HANDLER_PARAMS);
2905 return;
2906 }
2907 }
2908
2909 mono_arch_handle_exception (ctx, exc);
2910 }
2911
2912 MONO_SIG_HANDLER_FUNC (, mono_sigill_signal_handler)
2913 {
2914 MonoException *exc;
2915 MONO_SIG_HANDLER_GET_CONTEXT;
2916
2917 exc = mono_get_exception_execution_engine ("SIGILL");
2918
2919 mono_arch_handle_exception (ctx, exc);
2920 }
2921
2922 #if defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32)
2923 #define HAVE_SIG_INFO
2924 #endif
2925
2926 MONO_SIG_HANDLER_FUNC (, mono_sigsegv_signal_handler)
2927 {
2928 MonoJitInfo *ji;
2929 MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
2930 gpointer fault_addr = NULL;
2931 #ifdef HAVE_SIG_INFO
2932 MONO_SIG_HANDLER_INFO_TYPE *info = MONO_SIG_HANDLER_GET_INFO ();
2933 #else
2934 void *info = NULL;
2935 #endif
2936 MONO_SIG_HANDLER_GET_CONTEXT;
2937
2938 #if defined(MONO_ARCH_SOFT_DEBUG_SUPPORTED) && defined(HAVE_SIG_INFO)
2939 if (mono_arch_is_single_step_event (info, ctx)) {
2940 mono_debugger_agent_single_step_event (ctx);
2941 return;
2942 } else if (mono_arch_is_breakpoint_event (info, ctx)) {
2943 mono_debugger_agent_breakpoint_hit (ctx);
2944 return;
2945 }
2946 #endif
2947
2948 #if defined(HAVE_SIG_INFO)
2949 #if !defined(HOST_WIN32)
2950 fault_addr = info->si_addr;
2951 if (mono_aot_is_pagefault (info->si_addr)) {
2952 mono_aot_handle_pagefault (info->si_addr);
2953 return;
2954 }
2955 #endif
2956
2957 /* The thread might no be registered with the runtime */
2958 if (!mono_domain_get () || !jit_tls) {
2959 if (!mono_do_crash_chaining && mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
2960 return;
2961 mono_handle_native_sigsegv (SIGSEGV, ctx, info);
2962 if (mono_do_crash_chaining) {
2963 mono_chain_signal (MONO_SIG_HANDLER_PARAMS);
2964 return;
2965 }
2966 }
2967 #endif
2968
2969 ji = mono_jit_info_table_find_internal (mono_domain_get (), (char *)mono_arch_ip_from_context (ctx), TRUE, TRUE);
2970
2971 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
2972 if (mono_handle_soft_stack_ovf (jit_tls, ji, ctx, info, (guint8*)info->si_addr))
2973 return;
2974
2975 #ifdef MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX
2976 /* info->si_addr seems to be NULL on some kernels when handling stack overflows */
2977 fault_addr = info->si_addr;
2978 if (fault_addr == NULL) {
2979 MonoContext mctx;
2980
2981 mono_sigctx_to_monoctx (ctx, &mctx);
2982
2983 fault_addr = MONO_CONTEXT_GET_SP (&mctx);
2984 }
2985 #endif
2986
2987 if (jit_tls->stack_size &&
2988 ABS ((guint8*)fault_addr - ((guint8*)jit_tls->end_of_stack - jit_tls->stack_size)) < 8192 * sizeof (gpointer)) {
2989 /*
2990 * The hard-guard page has been hit: there is not much we can do anymore
2991 * Print a hopefully clear message and abort.
2992 */
2993 mono_handle_hard_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr);
2994 g_assert_not_reached ();
2995 } else {
2996 /* The original handler might not like that it is executed on an altstack... */
2997 if (!ji && mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
2998 return;
2999
3000 mono_arch_handle_altstack_exception (ctx, info, info->si_addr, FALSE);
3001 }
3002 #else
3003
3004 if (!ji) {
3005 if (!mono_do_crash_chaining && mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
3006 return;
3007
3008 mono_handle_native_sigsegv (SIGSEGV, ctx, info);
3009
3010 if (mono_do_crash_chaining) {
3011 mono_chain_signal (MONO_SIG_HANDLER_PARAMS);
3012 return;
3013 }
3014 }
3015
3016 mono_arch_handle_exception (ctx, NULL);
3017 #endif
3018 }
3019
3020 MONO_SIG_HANDLER_FUNC (, mono_sigint_signal_handler)
3021 {
3022 MonoException *exc;
3023 MONO_SIG_HANDLER_GET_CONTEXT;
3024
3025 exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
3026
3027 mono_arch_handle_exception (ctx, exc);
3028 }
3029
3030 #ifndef DISABLE_REMOTING
3031 /* mono_jit_create_remoting_trampoline:
3032 * @method: pointer to the method info
3033 *
3034 * Creates a trampoline which calls the remoting functions. This
3035 * is used in the vtable of transparent proxies.
3036 *
3037 * Returns: a pointer to the newly created code
3038 */
3039 static gpointer
3040 mono_jit_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
3041 {
3042 MonoMethod *nm;
3043 guint8 *addr = NULL;
3044
3045 if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && mono_method_signature (method)->generic_param_count) {
3046 return mono_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
3047 domain, NULL);
3048 }
3049
3050 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
3051 (mono_method_signature (method)->hasthis && (mono_class_is_marshalbyref (method->klass) || method->klass == mono_defaults.object_class))) {
3052 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
3053 addr = (guint8 *)mono_compile_method (nm);
3054 } else
3055 {
3056 addr = (guint8 *)mono_compile_method (method);
3057 }
3058 return mono_get_addr_from_ftnptr (addr);
3059 }
3060 #endif
3061
3062 static void
3063 no_imt_trampoline (void)
3064 {
3065 g_assert_not_reached ();
3066 }
3067
3068 static void
3069 no_vcall_trampoline (void)
3070 {
3071 g_assert_not_reached ();
3072 }
3073
3074 static gpointer *vtable_trampolines;
3075 static int vtable_trampolines_size;
3076
3077 gpointer
3078 mini_get_vtable_trampoline (MonoVTable *vt, int slot_index)
3079 {
3080 int index = slot_index + MONO_IMT_SIZE;
3081
3082 if (mono_llvm_only) {
3083 if (slot_index < 0) {
3084 /* Initialize the IMT thunks to a 'trampoline' so the generated code doesn't have to initialize it */
3085 // FIXME: Memory management
3086 gpointer *ftndesc = g_malloc (2 * sizeof (gpointer));
3087 IMTThunkInfo *info = g_new0 (IMTThunkInfo, 1);
3088 info->vtable = vt;
3089 info->slot = index;
3090 ftndesc [0] = mini_llvmonly_initial_imt_thunk;
3091 ftndesc [1] = info;
3092 mono_memory_barrier ();
3093 return ftndesc;
3094 } else {
3095 return NULL;
3096 }
3097 }
3098
3099 g_assert (slot_index >= - MONO_IMT_SIZE);
3100 if (!vtable_trampolines || slot_index + MONO_IMT_SIZE >= vtable_trampolines_size) {
3101 mono_jit_lock ();
3102 if (!vtable_trampolines || index >= vtable_trampolines_size) {
3103 int new_size;
3104 gpointer new_table;
3105
3106 new_size = vtable_trampolines_size ? vtable_trampolines_size * 2 : 128;
3107 while (new_size <= index)
3108 new_size *= 2;
3109 new_table = g_new0 (gpointer, new_size);
3110
3111 if (vtable_trampolines)
3112 memcpy (new_table, vtable_trampolines, vtable_trampolines_size * sizeof (gpointer));
3113 g_free (vtable_trampolines);
3114 mono_memory_barrier ();
3115 vtable_trampolines = (void **)new_table;
3116 vtable_trampolines_size = new_size;
3117 }
3118 mono_jit_unlock ();
3119 }
3120
3121 if (!vtable_trampolines [index])
3122 vtable_trampolines [index] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot_index), MONO_TRAMPOLINE_VCALL, mono_get_root_domain (), NULL);
3123 return vtable_trampolines [index];
3124 }
3125
3126 static gpointer
3127 mini_get_imt_trampoline (MonoVTable *vt, int slot_index)
3128 {
3129 return mini_get_vtable_trampoline (vt, slot_index - MONO_IMT_SIZE);
3130 }
3131
3132 static gboolean
3133 mini_imt_entry_inited (MonoVTable *vt, int imt_slot_index)
3134 {
3135 if (mono_llvm_only)
3136 return FALSE;
3137
3138 gpointer *imt = (gpointer*)vt;
3139 imt -= MONO_IMT_SIZE;
3140
3141 return (imt [imt_slot_index] != mini_get_imt_trampoline (vt, imt_slot_index));
3142 }
3143
3144 static gboolean
3145 is_callee_gsharedvt_variable (gpointer addr)
3146 {
3147 MonoJitInfo *ji;
3148 gboolean callee_gsharedvt;
3149
3150 ji = mini_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (addr), NULL);
3151 g_assert (ji);
3152 callee_gsharedvt = mini_jit_info_is_gsharedvt (ji);
3153 if (callee_gsharedvt)
3154 callee_gsharedvt = mini_is_gsharedvt_variable_signature (mono_method_signature (jinfo_get_method (ji)));
3155 return callee_gsharedvt;
3156 }
3157
3158 gpointer
3159 mini_get_delegate_arg (MonoMethod *method, gpointer method_ptr)
3160 {
3161 gpointer arg = NULL;
3162
3163 if (mono_method_needs_static_rgctx_invoke (method, FALSE))
3164 arg = mini_method_get_rgctx (method);
3165
3166 /*
3167 * Avoid adding gsharedvt in wrappers since they might not exist if
3168 * this delegate is called through a gsharedvt delegate invoke wrapper.
3169 * Instead, encode that the method is gsharedvt in del->extra_arg,
3170 * the CEE_MONO_CALLI_EXTRA_ARG implementation in the JIT depends on this.
3171 */
3172 if (method->is_inflated && is_callee_gsharedvt_variable (method_ptr)) {
3173 g_assert ((((mgreg_t)arg) & 1) == 0);
3174 arg = (gpointer)(((mgreg_t)arg) | 1);
3175 }
3176 return arg;
3177 }
3178
3179 void
3180 mini_init_delegate (MonoDelegate *del)
3181 {
3182 if (mono_llvm_only)
3183 del->extra_arg = mini_get_delegate_arg (del->method, del->method_ptr);
3184 }
3185
3186 gpointer
3187 mono_get_delegate_virtual_invoke_impl (MonoMethodSignature *sig, MonoMethod *method)
3188 {
3189 gboolean is_virtual_generic, is_interface, load_imt_reg;
3190 int offset, idx;
3191
3192 static guint8 **cache = NULL;
3193 static int cache_size = 0;
3194
3195 if (!method)
3196 return NULL;
3197
3198 if (MONO_TYPE_ISSTRUCT (sig->ret))
3199 return NULL;
3200
3201 is_virtual_generic = method->is_inflated && mono_method_get_declaring_generic_method (method)->is_generic;
3202 is_interface = method->klass->flags & TYPE_ATTRIBUTE_INTERFACE ? TRUE : FALSE;
3203 load_imt_reg = is_virtual_generic || is_interface;
3204
3205 if (is_interface)
3206 offset = ((gint32)mono_method_get_imt_slot (method) - MONO_IMT_SIZE) * SIZEOF_VOID_P;
3207 else
3208 offset = G_STRUCT_OFFSET (MonoVTable, vtable) + ((mono_method_get_vtable_index (method)) * (SIZEOF_VOID_P));
3209
3210 idx = (offset / SIZEOF_VOID_P + MONO_IMT_SIZE) * 2 + (load_imt_reg ? 1 : 0);
3211 g_assert (idx >= 0);
3212
3213 /* Resize the cache to idx + 1 */
3214 if (cache_size < idx + 1) {
3215 mono_jit_lock ();
3216 if (cache_size < idx + 1) {
3217 guint8 **new_cache;
3218 int new_cache_size = idx + 1;
3219
3220 new_cache = g_new0 (guint8*, new_cache_size);
3221 if (cache)
3222 memcpy (new_cache, cache, cache_size * sizeof (guint8*));
3223 g_free (cache);
3224
3225 mono_memory_barrier ();
3226 cache = new_cache;
3227 cache_size = new_cache_size;
3228 }
3229 mono_jit_unlock ();
3230 }
3231
3232 if (cache [idx])
3233 return cache [idx];
3234
3235 /* FIXME Support more cases */
3236 if (mono_aot_only) {
3237 char tramp_name [256];
3238 const char *imt = load_imt_reg ? "_imt" : "";
3239 int ind = (load_imt_reg ? (-offset) : offset) / SIZEOF_VOID_P;
3240
3241 sprintf (tramp_name, "delegate_virtual_invoke%s_%d", imt, ind);
3242 cache [idx] = (guint8 *)mono_aot_get_trampoline (tramp_name);
3243 g_assert (cache [idx]);
3244 } else {
3245 cache [idx] = (guint8 *)mono_arch_get_delegate_virtual_invoke_impl (sig, method, offset, load_imt_reg);
3246 }
3247 return cache [idx];
3248 }
3249
3250 /**
3251 * mini_parse_debug_option:
3252 * @option: The option to parse.
3253 *
3254 * Parses debug options for the mono runtime. The options are the same as for
3255 * the MONO_DEBUG environment variable.
3256 *
3257 */
3258 gboolean
3259 mini_parse_debug_option (const char *option)
3260 {
3261 if (!strcmp (option, "handle-sigint"))
3262 debug_options.handle_sigint = TRUE;
3263 else if (!strcmp (option, "keep-delegates"))
3264 debug_options.keep_delegates = TRUE;
3265 else if (!strcmp (option, "reverse-pinvoke-exceptions"))
3266 debug_options.reverse_pinvoke_exceptions = TRUE;
3267 else if (!strcmp (option, "collect-pagefault-stats"))
3268 debug_options.collect_pagefault_stats = TRUE;
3269 else if (!strcmp (option, "break-on-unverified"))
3270 debug_options.break_on_unverified = TRUE;
3271 else if (!strcmp (option, "no-gdb-backtrace"))
3272 debug_options.no_gdb_backtrace = TRUE;
3273 else if (!strcmp (option, "suspend-on-sigsegv"))
3274 debug_options.suspend_on_sigsegv = TRUE;
3275 else if (!strcmp (option, "suspend-on-exception"))
3276 debug_options.suspend_on_exception = TRUE;
3277 else if (!strcmp (option, "suspend-on-unhandled"))
3278 debug_options.suspend_on_unhandled = TRUE;
3279 else if (!strcmp (option, "dont-free-domains"))
3280 mono_dont_free_domains = TRUE;
3281 else if (!strcmp (option, "dyn-runtime-invoke"))
3282 debug_options.dyn_runtime_invoke = TRUE;
3283 else if (!strcmp (option, "gdb"))
3284 debug_options.gdb = TRUE;
3285 else if (!strcmp (option, "explicit-null-checks"))
3286 debug_options.explicit_null_checks = TRUE;
3287 else if (!strcmp (option, "gen-seq-points"))
3288 debug_options.gen_sdb_seq_points = TRUE;
3289 else if (!strcmp (option, "gen-compact-seq-points"))
3290 debug_options.gen_seq_points_compact_data = TRUE;
3291 else if (!strcmp (option, "single-imm-size"))
3292 debug_options.single_imm_size = TRUE;
3293 else if (!strcmp (option, "init-stacks"))
3294 debug_options.init_stacks = TRUE;
3295 else if (!strcmp (option, "casts"))
3296 debug_options.better_cast_details = TRUE;
3297 else if (!strcmp (option, "soft-breakpoints"))
3298 debug_options.soft_breakpoints = TRUE;
3299 else if (!strcmp (option, "check-pinvoke-callconv"))
3300 debug_options.check_pinvoke_callconv = TRUE;
3301 else if (!strcmp (option, "arm-use-fallback-tls"))
3302 debug_options.arm_use_fallback_tls = TRUE;
3303 else if (!strcmp (option, "debug-domain-unload"))
3304 mono_enable_debug_domain_unload (TRUE);
3305 else if (!strcmp (option, "partial-sharing"))
3306 mono_set_partial_sharing_supported (TRUE);
3307 else if (!strcmp (option, "align-small-structs"))
3308 mono_align_small_structs = TRUE;
3309 else if (!strcmp (option, "native-debugger-break"))
3310 debug_options.native_debugger_break = TRUE;
3311 else
3312 return FALSE;
3313
3314 return TRUE;
3315 }
3316
3317 static void
3318 mini_parse_debug_options (void)
3319 {
3320 const char *options = g_getenv ("MONO_DEBUG");
3321 gchar **args, **ptr;
3322
3323 if (!options)
3324 return;
3325
3326 args = g_strsplit (options, ",", -1);
3327
3328 for (ptr = args; ptr && *ptr; ptr++) {
3329 const char *arg = *ptr;
3330
3331 if (!mini_parse_debug_option (arg)) {
3332 fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
3333 fprintf (stderr, "Available options: 'handle-sigint', 'keep-delegates', 'reverse-pinvoke-exceptions', 'collect-pagefault-stats', 'break-on-unverified', 'no-gdb-backtrace', 'suspend-on-sigsegv', 'suspend-on-exception', 'suspend-on-unhandled', 'dont-free-domains', 'dyn-runtime-invoke', 'gdb', 'explicit-null-checks', 'gen-seq-points', 'gen-compact-seq-points', 'single-imm-size', 'init-stacks', 'casts', 'soft-breakpoints', 'check-pinvoke-callconv', 'arm-use-fallback-tls', 'debug-domain-unload', 'partial-sharing', 'align-small-structs', 'native-debugger-break'\n");
3334 exit (1);
3335 }
3336 }
3337
3338 g_strfreev (args);
3339 }
3340
3341 MonoDebugOptions *
3342 mini_get_debug_options (void)
3343 {
3344 return &debug_options;
3345 }
3346
3347 static gpointer
3348 mini_create_ftnptr (MonoDomain *domain, gpointer addr)
3349 {
3350 #if !defined(__ia64__) && (!defined(__ppc64__) && !defined(__powerpc64__) || _CALL_ELF == 2)
3351 return addr;
3352 #else
3353 gpointer* desc = NULL;
3354
3355 if ((desc = g_hash_table_lookup (domain->ftnptrs_hash, addr)))
3356 return desc;
3357 # ifdef __ia64__
3358 desc = mono_domain_code_reserve (domain, 2 * sizeof (gpointer));
3359
3360 desc [0] = addr;
3361 desc [1] = NULL;
3362 # elif defined(__ppc64__) || defined(__powerpc64__)
3363
3364 desc = mono_domain_alloc0 (domain, 3 * sizeof (gpointer));
3365
3366 desc [0] = addr;
3367 desc [1] = NULL;
3368 desc [2] = NULL;
3369 # endif
3370 g_hash_table_insert (domain->ftnptrs_hash, addr, desc);
3371 return desc;
3372 #endif
3373 }
3374
3375 static gpointer
3376 mini_get_addr_from_ftnptr (gpointer descr)
3377 {
3378 #if defined(__ia64__) || ((defined(__ppc64__) || defined(__powerpc64__)) && _CALL_ELF != 2)
3379 return *(gpointer*)descr;
3380 #else
3381 return descr;
3382 #endif
3383 }
3384
3385 static void
3386 register_jit_stats (void)
3387 {
3388 mono_counters_register ("Compiled methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_compiled);
3389 mono_counters_register ("Methods from AOT", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_aot);
3390 mono_counters_register ("Methods JITted using mono JIT", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_without_llvm);
3391 mono_counters_register ("Methods JITted using LLVM", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_with_llvm);
3392 mono_counters_register ("JIT/method-to-IR (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_method_to_ir);
3393 mono_counters_register ("JIT/liveness_handle_exception_clauses (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_liveness_handle_exception_clauses);
3394 mono_counters_register ("JIT/handle_out_of_line_bblock (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_handle_out_of_line_bblock);
3395 mono_counters_register ("JIT/decompose_long_opts (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_decompose_long_opts);
3396 mono_counters_register ("JIT/local_cprop (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_cprop);
3397 mono_counters_register ("JIT/local_emulate_ops (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_emulate_ops);
3398 mono_counters_register ("JIT/optimize_branches (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_optimize_branches);
3399 mono_counters_register ("JIT/handle_global_vregs (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_handle_global_vregs);
3400 mono_counters_register ("JIT/local_deadce (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_deadce);
3401 mono_counters_register ("JIT/local_alias_analysis (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_alias_analysis);
3402 mono_counters_register ("JIT/if_conversion (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_if_conversion);
3403 mono_counters_register ("JIT/bb_ordering (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_bb_ordering);
3404 mono_counters_register ("JIT/compile_dominator_info (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_compile_dominator_info);
3405 mono_counters_register ("JIT/compute_natural_loops (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_compute_natural_loops);
3406 mono_counters_register ("JIT/insert_safepoints (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_insert_safepoints);
3407 mono_counters_register ("JIT/ssa_compute (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_ssa_compute);
3408 mono_counters_register ("JIT/ssa_cprop (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_ssa_cprop);
3409 mono_counters_register ("JIT/ssa_deadce(sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_ssa_deadce);
3410 mono_counters_register ("JIT/perform_abc_removal (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_perform_abc_removal);
3411 mono_counters_register ("JIT/ssa_remove (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_ssa_remove);
3412 mono_counters_register ("JIT/local_cprop2 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_cprop2);
3413 mono_counters_register ("JIT/handle_global_vregs2 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_handle_global_vregs2);
3414 mono_counters_register ("JIT/local_deadce2 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_deadce2);
3415 mono_counters_register ("JIT/optimize_branches2 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_optimize_branches2);
3416 mono_counters_register ("JIT/decompose_vtype_opts (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_decompose_vtype_opts);
3417 mono_counters_register ("JIT/decompose_array_access_opts (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_decompose_array_access_opts);
3418 mono_counters_register ("JIT/liveness_handle_exception_clauses2 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_liveness_handle_exception_clauses2);
3419 mono_counters_register ("JIT/analyze_liveness (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_analyze_liveness);
3420 mono_counters_register ("JIT/linear_scan (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_linear_scan);
3421 mono_counters_register ("JIT/arch_allocate_vars (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_arch_allocate_vars);
3422 mono_counters_register ("JIT/spill_global_vars (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_spill_global_vars);
3423 mono_counters_register ("JIT/jit_local_cprop3 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_cprop3);
3424 mono_counters_register ("JIT/jit_local_deadce3 (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_local_deadce3);
3425 mono_counters_register ("JIT/codegen (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_codegen);
3426 mono_counters_register ("JIT/create_jit_info (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_create_jit_info);
3427 mono_counters_register ("JIT/gc_create_gc_map (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_gc_create_gc_map);
3428 mono_counters_register ("JIT/save_seq_point_info (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_save_seq_point_info);
3429 mono_counters_register ("Total time spent JITting (sec)", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &mono_jit_stats.jit_time);
3430 mono_counters_register ("Basic blocks", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.basic_blocks);
3431 mono_counters_register ("Max basic blocks", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.max_basic_blocks);
3432 mono_counters_register ("Allocated vars", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocate_var);
3433 mono_counters_register ("Code reallocs", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.code_reallocs);
3434 mono_counters_register ("Allocated code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocated_code_size);
3435 mono_counters_register ("Allocated seq points size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.allocated_seq_points_size);
3436 mono_counters_register ("Inlineable methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.inlineable_methods);
3437 mono_counters_register ("Inlined methods", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.inlined_methods);
3438 mono_counters_register ("Regvars", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.regvars);
3439 mono_counters_register ("Locals stack size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.locals_stack_size);
3440 mono_counters_register ("Method cache lookups", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.methods_lookups);
3441 mono_counters_register ("Compiled CIL code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.cil_code_size);
3442 mono_counters_register ("Native code size", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.native_code_size);
3443 mono_counters_register ("Aliases found", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.alias_found);
3444 mono_counters_register ("Aliases eliminated", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.alias_removed);
3445 mono_counters_register ("Aliased loads eliminated", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.loads_eliminated);
3446 mono_counters_register ("Aliased stores eliminated", MONO_COUNTER_JIT | MONO_COUNTER_INT, &mono_jit_stats.stores_eliminated);
3447 }
3448
3449 static void runtime_invoke_info_free (gpointer value);
3450
3451 static gint
3452 class_method_pair_equal (gconstpointer ka, gconstpointer kb)
3453 {
3454 const MonoClassMethodPair *apair = (const MonoClassMethodPair *)ka;
3455 const MonoClassMethodPair *bpair = (const MonoClassMethodPair *)kb;
3456
3457 return apair->klass == bpair->klass && apair->method == bpair->method ? 1 : 0;
3458 }
3459
3460 static guint
3461 class_method_pair_hash (gconstpointer data)
3462 {
3463 const MonoClassMethodPair *pair = (const MonoClassMethodPair *)data;
3464
3465 return (gsize)pair->klass ^ (gsize)pair->method;
3466 }
3467
3468 static void
3469 mini_create_jit_domain_info (MonoDomain *domain)
3470 {
3471 MonoJitDomainInfo *info = g_new0 (MonoJitDomainInfo, 1);
3472
3473 info->jump_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
3474 info->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
3475 info->delegate_trampoline_hash = g_hash_table_new (class_method_pair_hash, class_method_pair_equal);
3476 info->llvm_vcall_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
3477 info->runtime_invoke_hash = mono_conc_hashtable_new_full (mono_aligned_addr_hash, NULL, NULL, runtime_invoke_info_free);
3478 info->seq_points = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, mono_seq_point_info_free);
3479 info->arch_seq_points = g_hash_table_new (mono_aligned_addr_hash, NULL);
3480 info->jump_target_hash = g_hash_table_new (NULL, NULL);
3481
3482 domain->runtime_info = info;
3483 }
3484
3485 static void
3486 delete_jump_list (gpointer key, gpointer value, gpointer user_data)
3487 {
3488 MonoJumpList *jlist = (MonoJumpList *)value;
3489 g_slist_free (jlist->list);
3490 }
3491
3492 static void
3493 delete_got_slot_list (gpointer key, gpointer value, gpointer user_data)
3494 {
3495 GSList *list = (GSList *)value;
3496 g_slist_free (list);
3497 }
3498
3499 static void
3500 dynamic_method_info_free (gpointer key, gpointer value, gpointer user_data)
3501 {
3502 MonoJitDynamicMethodInfo *di = (MonoJitDynamicMethodInfo *)value;
3503 mono_code_manager_destroy (di->code_mp);
3504 g_free (di);
3505 }
3506
3507 static void
3508 runtime_invoke_info_free (gpointer value)
3509 {
3510 RuntimeInvokeInfo *info = (RuntimeInvokeInfo*)value;
3511
3512 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
3513 if (info->dyn_call_info)
3514 mono_arch_dyn_call_free (info->dyn_call_info);
3515 #endif
3516 g_free (info);
3517 }
3518
3519 static void
3520 mini_free_jit_domain_info (MonoDomain *domain)
3521 {
3522 MonoJitDomainInfo *info = domain_jit_info (domain);
3523
3524 g_hash_table_foreach (info->jump_target_hash, delete_jump_list, NULL);
3525 g_hash_table_destroy (info->jump_target_hash);
3526 if (info->jump_target_got_slot_hash) {
3527 g_hash_table_foreach (info->jump_target_got_slot_hash, delete_got_slot_list, NULL);
3528 g_hash_table_destroy (info->jump_target_got_slot_hash);
3529 }
3530 if (info->dynamic_code_hash) {
3531 g_hash_table_foreach (info->dynamic_code_hash, dynamic_method_info_free, NULL);
3532 g_hash_table_destroy (info->dynamic_code_hash);
3533 }
3534 if (info->method_code_hash)
3535 g_hash_table_destroy (info->method_code_hash);
3536 g_hash_table_destroy (info->jump_trampoline_hash);
3537 g_hash_table_destroy (info->jit_trampoline_hash);
3538 g_hash_table_destroy (info->delegate_trampoline_hash);
3539 if (info->static_rgctx_trampoline_hash)
3540 g_hash_table_destroy (info->static_rgctx_trampoline_hash);
3541 g_hash_table_destroy (info->llvm_vcall_trampoline_hash);
3542 mono_conc_hashtable_destroy (info->runtime_invoke_hash);
3543 g_hash_table_destroy (info->seq_points);
3544 g_hash_table_destroy (info->arch_seq_points);
3545 if (info->agent_info)
3546 mono_debugger_agent_free_domain_info (domain);
3547 if (info->gsharedvt_arg_tramp_hash)
3548 g_hash_table_destroy (info->gsharedvt_arg_tramp_hash);
3549 #ifdef ENABLE_LLVM
3550 mono_llvm_free_domain_info (domain);
3551 #endif
3552
3553 g_free (domain->runtime_info);
3554 domain->runtime_info = NULL;
3555 }
3556
3557 #ifdef ENABLE_LLVM
3558 static gboolean
3559 llvm_init_inner (void)
3560 {
3561 if (!mono_llvm_load (NULL))
3562 return FALSE;
3563
3564 mono_llvm_init ();
3565 return TRUE;
3566 }
3567 #endif
3568
3569 /*
3570 * mini_llvm_init:
3571 *
3572 * Load and initialize LLVM support.
3573 * Return TRUE on success.
3574 */
3575 gboolean
3576 mini_llvm_init (void)
3577 {
3578 #ifdef ENABLE_LLVM
3579 static gboolean llvm_inited;
3580 static gboolean init_result;
3581
3582 mono_loader_lock_if_inited ();
3583 if (!llvm_inited) {
3584 init_result = llvm_init_inner ();
3585 llvm_inited = TRUE;
3586 }
3587 mono_loader_unlock_if_inited ();
3588 return init_result;
3589 #else
3590 return FALSE;
3591 #endif
3592 }
3593
3594 MonoDomain *
3595 mini_init (const char *filename, const char *runtime_version)
3596 {
3597 MonoError error;
3598 MonoDomain *domain;
3599 MonoRuntimeCallbacks callbacks;
3600 MonoThreadInfoRuntimeCallbacks ticallbacks;
3601
3602 MONO_VES_INIT_BEGIN ();
3603
3604 CHECKED_MONO_INIT ();
3605
3606 #if defined(__linux__) && !defined(__native_client__)
3607 if (access ("/proc/self/maps", F_OK) != 0) {
3608 g_print ("Mono requires /proc to be mounted.\n");
3609 exit (1);
3610 }
3611 #endif
3612
3613 mono_os_mutex_init_recursive (&jit_mutex);
3614
3615 mono_cross_helpers_run ();
3616
3617 mini_jit_init ();
3618
3619 /* Happens when using the embedding interface */
3620 if (!default_opt_set)
3621 default_opt = mono_parse_default_optimizations (NULL);
3622
3623 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
3624 if (mono_aot_only)
3625 mono_set_generic_sharing_vt_supported (TRUE);
3626 #else
3627 if (mono_llvm_only)
3628 mono_set_generic_sharing_vt_supported (TRUE);
3629 #endif
3630
3631 #ifdef MONO_HAVE_FAST_TLS
3632 MONO_FAST_TLS_INIT (mono_jit_tls);
3633 MONO_FAST_TLS_INIT (mono_lmf_addr);
3634 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
3635 MONO_FAST_TLS_INIT (mono_lmf);
3636 #endif
3637 #endif
3638
3639 mono_runtime_set_has_tls_get (MONO_ARCH_HAVE_TLS_GET);
3640
3641 if (!global_codeman)
3642 global_codeman = mono_code_manager_new ();
3643
3644 memset (&callbacks, 0, sizeof (callbacks));
3645 callbacks.create_ftnptr = mini_create_ftnptr;
3646 callbacks.get_addr_from_ftnptr = mini_get_addr_from_ftnptr;
3647 callbacks.get_runtime_build_info = mono_get_runtime_build_info;
3648 callbacks.set_cast_details = mono_set_cast_details;
3649 callbacks.debug_log = mono_debugger_agent_debug_log;
3650 callbacks.debug_log_is_enabled = mono_debugger_agent_debug_log_is_enabled;
3651 callbacks.tls_key_supported = mini_tls_key_supported;
3652 callbacks.get_vtable_trampoline = mini_get_vtable_trampoline;
3653 callbacks.get_imt_trampoline = mini_get_imt_trampoline;
3654 callbacks.imt_entry_inited = mini_imt_entry_inited;
3655 callbacks.init_delegate = mini_init_delegate;
3656 #define JIT_INVOKE_WORKS
3657 #ifdef JIT_INVOKE_WORKS
3658 callbacks.runtime_invoke = mono_jit_runtime_invoke;
3659 #endif
3660 #define JIT_TRAMPOLINES_WORK
3661 #ifdef JIT_TRAMPOLINES_WORK
3662 callbacks.compile_method = mono_jit_compile_method;
3663 callbacks.create_jump_trampoline = mono_create_jump_trampoline;
3664 callbacks.create_jit_trampoline = mono_create_jit_trampoline;
3665 #endif
3666
3667 mono_install_callbacks (&callbacks);
3668
3669 memset (&ticallbacks, 0, sizeof (ticallbacks));
3670 ticallbacks.setup_async_callback = mono_setup_async_callback;
3671 ticallbacks.thread_state_init_from_sigctx = mono_thread_state_init_from_sigctx;
3672 ticallbacks.thread_state_init_from_handle = mono_thread_state_init_from_handle;
3673 ticallbacks.thread_state_init = mono_thread_state_init;
3674
3675 mono_counters_init ();
3676
3677 mono_threads_runtime_init (&ticallbacks);
3678
3679 if (g_getenv ("MONO_DEBUG") != NULL)
3680 mini_parse_debug_options ();
3681
3682 mono_code_manager_init ();
3683
3684 mono_hwcap_init ();
3685
3686 mono_arch_cpu_init ();
3687
3688 mono_arch_init ();
3689
3690 mono_unwind_init ();
3691
3692 #ifdef XDEBUG_ENABLED
3693 if (g_getenv ("MONO_XDEBUG")) {
3694 const char *xdebug_opts = g_getenv ("MONO_XDEBUG");
3695 mono_xdebug_init (xdebug_opts);
3696 /* So methods for multiple domains don't have the same address */
3697 mono_dont_free_domains = TRUE;
3698 mono_using_xdebug = TRUE;
3699 } else if (mini_get_debug_options ()->gdb) {
3700 mono_xdebug_init ((char*)"gdb");
3701 mono_dont_free_domains = TRUE;
3702 mono_using_xdebug = TRUE;
3703 }
3704 #endif
3705
3706 #ifdef ENABLE_LLVM
3707 if (mono_use_llvm) {
3708 if (!mono_llvm_load (NULL)) {
3709 mono_use_llvm = FALSE;
3710 fprintf (stderr, "Mono Warning: llvm support could not be loaded.\n");
3711 }
3712 }
3713 if (mono_use_llvm)
3714 mono_llvm_init ();
3715 #endif
3716
3717 mono_trampolines_init ();
3718
3719 mono_native_tls_alloc (&mono_jit_tls_id, NULL);
3720
3721 if (default_opt & MONO_OPT_AOT)
3722 mono_aot_init ();
3723
3724 mono_debugger_agent_init ();
3725
3726 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3727 mono_set_generic_sharing_supported (TRUE);
3728 #endif
3729
3730 #ifndef MONO_CROSS_COMPILE
3731 mono_runtime_install_handlers ();
3732 #endif
3733 mono_threads_install_cleanup (mini_thread_cleanup);
3734
3735 #ifdef JIT_TRAMPOLINES_WORK
3736 mono_install_free_method (mono_jit_free_method);
3737 #ifndef DISABLE_REMOTING
3738 mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
3739 #endif
3740 mono_install_delegate_trampoline (mono_create_delegate_trampoline);
3741 mono_install_create_domain_hook (mini_create_jit_domain_info);
3742 mono_install_free_domain_hook (mini_free_jit_domain_info);
3743 #endif
3744 mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
3745 mono_install_get_class_from_name (mono_aot_get_class_from_name);
3746 mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
3747
3748 if (debug_options.collect_pagefault_stats)
3749 mono_aot_set_make_unreadable (TRUE);
3750
3751 if (runtime_version)
3752 domain = mono_init_version (filename, runtime_version);
3753 else
3754 domain = mono_init_from_assembly (filename, filename);
3755
3756 if (mono_aot_only) {
3757 /* This helps catch code allocation requests */
3758 mono_code_manager_set_read_only (domain->code_mp);
3759 mono_marshal_use_aot_wrappers (TRUE);
3760 }
3761
3762 if (mono_llvm_only) {
3763 mono_install_imt_thunk_builder (mono_llvmonly_get_imt_thunk);
3764 mono_set_always_build_imt_thunks (TRUE);
3765 } else if (mono_aot_only) {
3766 mono_install_imt_thunk_builder (mono_aot_get_imt_thunk);
3767 } else {
3768 mono_install_imt_thunk_builder (mono_arch_build_imt_thunk);
3769 }
3770
3771 /*Init arch tls information only after the metadata side is inited to make sure we see dynamic appdomain tls keys*/
3772 mono_arch_finish_init ();
3773
3774 mono_icall_init ();
3775
3776 /* This must come after mono_init () in the aot-only case */
3777 mono_exceptions_init ();
3778
3779 /* This should come after mono_init () too */
3780 mini_gc_init ();
3781
3782 #ifndef DISABLE_JIT
3783 mono_create_helper_signatures ();
3784 #endif
3785
3786 register_jit_stats ();
3787
3788 #define JIT_CALLS_WORK
3789 #ifdef JIT_CALLS_WORK
3790 /* Needs to be called here since register_jit_icall depends on it */
3791 mono_marshal_init ();
3792
3793 mono_arch_register_lowlevel_calls ();
3794
3795 register_icalls ();
3796
3797 mono_generic_sharing_init ();
3798 #endif
3799
3800 #ifdef MONO_ARCH_SIMD_INTRINSICS
3801 mono_simd_intrinsics_init ();
3802 #endif
3803
3804 #if MONO_SUPPORT_TASKLETS
3805 mono_tasklets_init ();
3806 #endif
3807
3808 register_trampolines (domain);
3809
3810 if (mono_compile_aot)
3811 /*
3812 * Avoid running managed code when AOT compiling, since the platform
3813 * might only support aot-only execution.
3814 */
3815 mono_runtime_set_no_exec (TRUE);
3816
3817 #define JIT_RUNTIME_WORKS
3818 #ifdef JIT_RUNTIME_WORKS
3819 mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
3820 mono_runtime_init_checked (domain, mono_thread_start_cb, mono_thread_attach_cb, &error);
3821 mono_error_assert_ok (&error);
3822 mono_thread_attach (domain);
3823 #endif
3824
3825 mono_profiler_runtime_initialized ();
3826
3827 MONO_VES_INIT_END ();
3828
3829 return domain;
3830 }
3831
3832 static void
3833 register_icalls (void)
3834 {
3835 mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
3836 ves_icall_get_frame_info);
3837 mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
3838 ves_icall_get_trace);
3839 mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
3840 mono_runtime_install_handlers);
3841
3842 #if defined(PLATFORM_ANDROID) || defined(TARGET_ANDROID)
3843 mono_add_internal_call ("System.Diagnostics.Debugger::Mono_UnhandledException_internal",
3844 mono_debugger_agent_unhandled_exception);
3845 #endif
3846
3847 /*
3848 * It's important that we pass `TRUE` as the last argument here, as
3849 * it causes the JIT to omit a wrapper for these icalls. If the JIT
3850 * *did* emit a wrapper, we'd be looking at infinite recursion since
3851 * the wrapper would call the icall which would call the wrapper and
3852 * so on.
3853 */
3854 register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", "void ptr", TRUE);
3855 register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", "void ptr", TRUE);
3856
3857 register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
3858 register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
3859 register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
3860 register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "ptr ptr ptr", TRUE);
3861 register_icall (mono_jit_thread_detach, "mono_jit_thread_detach", "void ptr ptr", TRUE);
3862 register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
3863
3864 register_icall (mono_llvm_throw_exception, "mono_llvm_throw_exception", "void object", TRUE);
3865 register_icall (mono_llvm_rethrow_exception, "mono_llvm_rethrow_exception", "void object", TRUE);
3866 register_icall (mono_llvm_resume_exception, "mono_llvm_resume_exception", "void", TRUE);
3867 register_icall (mono_llvm_match_exception, "mono_llvm_match_exception", "int ptr int int", TRUE);
3868 register_icall (mono_llvm_clear_exception, "mono_llvm_clear_exception", NULL, TRUE);
3869 register_icall (mono_llvm_load_exception, "mono_llvm_load_exception", "object", TRUE);
3870 register_icall (mono_llvm_throw_corlib_exception, "mono_llvm_throw_corlib_exception", "void int", TRUE);
3871 #if defined(ENABLE_LLVM) && !defined(MONO_LLVM_LOADED)
3872 register_icall (mono_llvm_set_unhandled_exception_handler, "mono_llvm_set_unhandled_exception_handler", NULL, TRUE);
3873
3874 // FIXME: This is broken
3875 register_icall (mono_debug_personality, "mono_debug_personality", "int int int ptr ptr ptr", TRUE);
3876 #endif
3877
3878 register_dyn_icall (mono_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
3879 register_dyn_icall (mono_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
3880 register_dyn_icall (mono_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception", "void ptr", TRUE);
3881 register_icall (mono_thread_get_undeniable_exception, "mono_thread_get_undeniable_exception", "object", FALSE);
3882 register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "object", FALSE);
3883 register_icall (mono_thread_force_interruption_checkpoint_noraise, "mono_thread_force_interruption_checkpoint_noraise", "object", FALSE);
3884 #ifndef DISABLE_REMOTING
3885 register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
3886 register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
3887 #endif
3888
3889 #if defined(__native_client__) || defined(__native_client_codegen__)
3890 register_icall (mono_nacl_gc, "mono_nacl_gc", "void", FALSE);
3891 #endif
3892
3893 if (mono_threads_is_coop_enabled ())
3894 register_icall (mono_threads_state_poll, "mono_threads_state_poll", "void", FALSE);
3895
3896 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
3897 register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, "mono_llmult", TRUE);
3898 register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, "mono_lldiv", FALSE);
3899 register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, "mono_lldiv_un", FALSE);
3900 register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, "mono_llrem", FALSE);
3901 register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, "mono_llrem_un", FALSE);
3902 #endif
3903 #if !defined(MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS) || defined(MONO_ARCH_EMULATE_LONG_MUL_OVF_OPTS)
3904 register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, "mono_llmult_ovf_un", FALSE);
3905 register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, "mono_llmult_ovf", FALSE);
3906 #endif
3907
3908 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
3909 register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, "mono_lshl", TRUE);
3910 register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, "mono_lshr", TRUE);
3911 register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, "mono_lshr_un", TRUE);
3912 #endif
3913
3914 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
3915 register_opcode_emulation (OP_IDIV, "__emul_op_idiv", "int32 int32 int32", mono_idiv, "mono_idiv", FALSE);
3916 register_opcode_emulation (OP_IDIV_UN, "__emul_op_idiv_un", "int32 int32 int32", mono_idiv_un, "mono_idiv_un", FALSE);
3917 register_opcode_emulation (OP_IREM, "__emul_op_irem", "int32 int32 int32", mono_irem, "mono_irem", FALSE);
3918 register_opcode_emulation (OP_IREM_UN, "__emul_op_irem_un", "int32 int32 int32", mono_irem_un, "mono_irem_un", FALSE);
3919 #endif
3920
3921 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3922 register_opcode_emulation (OP_IMUL, "__emul_op_imul", "int32 int32 int32", mono_imul, "mono_imul", TRUE);
3923 #endif
3924
3925 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_MUL_OVF)
3926 register_opcode_emulation (OP_IMUL_OVF, "__emul_op_imul_ovf", "int32 int32 int32", mono_imul_ovf, "mono_imul_ovf", FALSE);
3927 register_opcode_emulation (OP_IMUL_OVF_UN, "__emul_op_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, "mono_imul_ovf_un", FALSE);
3928 #endif
3929
3930 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_SOFT_FLOAT_FALLBACK)
3931 register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, "mono_fdiv", FALSE);
3932 #endif
3933
3934 register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, "mono_fconv_u8", FALSE);
3935 register_opcode_emulation (OP_RCONV_TO_U8, "__emul_rconv_to_u8", "ulong float", mono_rconv_u8, "mono_rconv_u8", FALSE);
3936 register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, "mono_fconv_u4", FALSE);
3937 register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, "mono_fconv_ovf_i8", FALSE);
3938 register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, "mono_fconv_ovf_u8", FALSE);
3939 register_opcode_emulation (OP_RCONV_TO_OVF_I8, "__emul_rconv_to_ovf_i8", "long float", mono_rconv_ovf_i8, "mono_rconv_ovf_i8", FALSE);
3940 register_opcode_emulation (OP_RCONV_TO_OVF_U8, "__emul_rconv_to_ovf_u8", "ulong float", mono_rconv_ovf_u8, "mono_rconv_ovf_u8", FALSE);
3941
3942
3943 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
3944 register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, "mono_fconv_i8", FALSE);
3945 register_opcode_emulation (OP_RCONV_TO_I8, "__emul_rconv_to_i8", "long float", mono_rconv_i8, "mono_rconv_i8", FALSE);
3946 #endif
3947
3948 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
3949 register_opcode_emulation (OP_ICONV_TO_R_UN, "__emul_iconv_to_r_un", "double int32", mono_conv_to_r8_un, "mono_conv_to_r8_un", FALSE);
3950 #endif
3951 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
3952 register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, "mono_lconv_to_r8", FALSE);
3953 #endif
3954 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
3955 register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, "mono_lconv_to_r4", FALSE);
3956 #endif
3957 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
3958 register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, "mono_lconv_to_r8_un", FALSE);
3959 #endif
3960 #ifdef MONO_ARCH_EMULATE_FREM
3961 #if defined(__default_codegen__)
3962 register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, "fmod", FALSE);
3963 register_opcode_emulation (OP_RREM, "__emul_rrem", "float float float", fmodf, "fmodf", FALSE);
3964 #elif defined(__native_client_codegen__)
3965 register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", mono_fmod, "mono_fmod", FALSE);
3966 #endif
3967 #endif
3968
3969 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3970 if (mono_arch_is_soft_float ()) {
3971 register_opcode_emulation (OP_FSUB, "__emul_fsub", "double double double", mono_fsub, "mono_fsub", FALSE);
3972 register_opcode_emulation (OP_FADD, "__emul_fadd", "double double double", mono_fadd, "mono_fadd", FALSE);
3973 register_opcode_emulation (OP_FMUL, "__emul_fmul", "double double double", mono_fmul, "mono_fmul", FALSE);
3974 register_opcode_emulation (OP_FNEG, "__emul_fneg", "double double", mono_fneg, "mono_fneg", FALSE);
3975 register_opcode_emulation (OP_ICONV_TO_R8, "__emul_iconv_to_r8", "double int32", mono_conv_to_r8, "mono_conv_to_r8", FALSE);
3976 register_opcode_emulation (OP_ICONV_TO_R4, "__emul_iconv_to_r4", "double int32", mono_conv_to_r4, "mono_conv_to_r4", FALSE);
3977 register_opcode_emulation (OP_FCONV_TO_R4, "__emul_fconv_to_r4", "double double", mono_fconv_r4, "mono_fconv_r4", FALSE);
3978 register_opcode_emulation (OP_FCONV_TO_I1, "__emul_fconv_to_i1", "int8 double", mono_fconv_i1, "mono_fconv_i1", FALSE);
3979 register_opcode_emulation (OP_FCONV_TO_I2, "__emul_fconv_to_i2", "int16 double", mono_fconv_i2, "mono_fconv_i2", FALSE);
3980 register_opcode_emulation (OP_FCONV_TO_I4, "__emul_fconv_to_i4", "int32 double", mono_fconv_i4, "mono_fconv_i4", FALSE);
3981 register_opcode_emulation (OP_FCONV_TO_U1, "__emul_fconv_to_u1", "uint8 double", mono_fconv_u1, "mono_fconv_u1", FALSE);
3982 register_opcode_emulation (OP_FCONV_TO_U2, "__emul_fconv_to_u2", "uint16 double", mono_fconv_u2, "mono_fconv_u2", FALSE);
3983
3984 #if SIZEOF_VOID_P == 4
3985 register_opcode_emulation (OP_FCONV_TO_I, "__emul_fconv_to_i", "int32 double", mono_fconv_i4, "mono_fconv_i4", FALSE);
3986 #endif
3987
3988 register_opcode_emulation (OP_FBEQ, "__emul_fcmp_eq", "uint32 double double", mono_fcmp_eq, "mono_fcmp_eq", FALSE);
3989 register_opcode_emulation (OP_FBLT, "__emul_fcmp_lt", "uint32 double double", mono_fcmp_lt, "mono_fcmp_lt", FALSE);
3990 register_opcode_emulation (OP_FBGT, "__emul_fcmp_gt", "uint32 double double", mono_fcmp_gt, "mono_fcmp_gt", FALSE);
3991 register_opcode_emulation (OP_FBLE, "__emul_fcmp_le", "uint32 double double", mono_fcmp_le, "mono_fcmp_le", FALSE);
3992 register_opcode_emulation (OP_FBGE, "__emul_fcmp_ge", "uint32 double double", mono_fcmp_ge, "mono_fcmp_ge", FALSE);
3993 register_opcode_emulation (OP_FBNE_UN, "__emul_fcmp_ne_un", "uint32 double double", mono_fcmp_ne_un, "mono_fcmp_ne_un", FALSE);
3994 register_opcode_emulation (OP_FBLT_UN, "__emul_fcmp_lt_un", "uint32 double double", mono_fcmp_lt_un, "mono_fcmp_lt_un", FALSE);
3995 register_opcode_emulation (OP_FBGT_UN, "__emul_fcmp_gt_un", "uint32 double double", mono_fcmp_gt_un, "mono_fcmp_gt_un", FALSE);
3996 register_opcode_emulation (OP_FBLE_UN, "__emul_fcmp_le_un", "uint32 double double", mono_fcmp_le_un, "mono_fcmp_le_un", FALSE);
3997 register_opcode_emulation (OP_FBGE_UN, "__emul_fcmp_ge_un", "uint32 double double", mono_fcmp_ge_un, "mono_fcmp_ge_un", FALSE);
3998
3999 register_opcode_emulation (OP_FCEQ, "__emul_fcmp_ceq", "uint32 double double", mono_fceq, "mono_fceq", FALSE);
4000 register_opcode_emulation (OP_FCGT, "__emul_fcmp_cgt", "uint32 double double", mono_fcgt, "mono_fcgt", FALSE);
4001 register_opcode_emulation (OP_FCGT_UN, "__emul_fcmp_cgt_un", "uint32 double double", mono_fcgt_un, "mono_fcgt_un", FALSE);
4002 register_opcode_emulation (OP_FCLT, "__emul_fcmp_clt", "uint32 double double", mono_fclt, "mono_fclt", FALSE);
4003 register_opcode_emulation (OP_FCLT_UN, "__emul_fcmp_clt_un", "uint32 double double", mono_fclt_un, "mono_fclt_un", FALSE);
4004
4005 register_icall (mono_fload_r4, "mono_fload_r4", "double ptr", FALSE);
4006 register_icall (mono_fstore_r4, "mono_fstore_r4", "void double ptr", FALSE);
4007 register_icall (mono_fload_r4_arg, "mono_fload_r4_arg", "uint32 double", FALSE);
4008 register_icall (mono_isfinite, "mono_isfinite", "uint32 double", FALSE);
4009 }
4010 #endif
4011 register_icall (mono_ckfinite, "mono_ckfinite", "double double", FALSE);
4012
4013 #ifdef COMPRESSED_INTERFACE_BITMAP
4014 register_icall (mono_class_interface_match, "mono_class_interface_match", "uint32 ptr int32", TRUE);
4015 #endif
4016
4017 #if SIZEOF_REGISTER == 4
4018 register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, "mono_fconv_u4", TRUE);
4019 #else
4020 register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "ulong double", mono_fconv_u8, "mono_fconv_u8", TRUE);
4021 #endif
4022
4023 /* other jit icalls */
4024 register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
4025 register_icall (mono_class_static_field_address , "mono_class_static_field_address",
4026 "ptr ptr ptr", FALSE);
4027 register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
4028 register_icall (mono_ldtoken_wrapper_generic_shared, "mono_ldtoken_wrapper_generic_shared",
4029 "ptr ptr ptr ptr", FALSE);
4030 register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
4031 register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
4032 register_icall (mono_helper_stelem_ref_check, "mono_helper_stelem_ref_check", "void object object", FALSE);
4033 register_icall (ves_icall_object_new, "ves_icall_object_new", "object ptr ptr", FALSE);
4034 register_icall (ves_icall_object_new_specific, "ves_icall_object_new_specific", "object ptr", FALSE);
4035 register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
4036 register_icall (ves_icall_array_new_specific, "ves_icall_array_new_specific", "object ptr int32", FALSE);
4037 register_icall (ves_icall_runtime_class_init, "ves_icall_runtime_class_init", "void ptr", FALSE);
4038 register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
4039 register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
4040 register_icall (mono_ldvirtfn_gshared, "mono_ldvirtfn_gshared", "ptr object ptr", FALSE);
4041 register_icall (mono_helper_compile_generic_method, "mono_helper_compile_generic_method", "ptr object ptr ptr", FALSE);
4042 register_icall (mono_helper_ldstr, "mono_helper_ldstr", "object ptr int", FALSE);
4043 register_icall (mono_helper_ldstr_mscorlib, "mono_helper_ldstr_mscorlib", "object int", FALSE);
4044 register_icall (mono_helper_newobj_mscorlib, "mono_helper_newobj_mscorlib", "object int", FALSE);
4045 register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
4046 register_icall (mono_object_castclass_unbox, "mono_object_castclass_unbox", "object object ptr", FALSE);
4047 register_icall (mono_break, "mono_break", NULL, TRUE);
4048 register_icall (mono_create_corlib_exception_0, "mono_create_corlib_exception_0", "object int", TRUE);
4049 register_icall (mono_create_corlib_exception_1, "mono_create_corlib_exception_1", "object int object", TRUE);
4050 register_icall (mono_create_corlib_exception_2, "mono_create_corlib_exception_2", "object int object object", TRUE);
4051 register_icall (mono_array_new_1, "mono_array_new_1", "object ptr int", FALSE);
4052 register_icall (mono_array_new_2, "mono_array_new_2", "object ptr int int", FALSE);
4053 register_icall (mono_array_new_3, "mono_array_new_3", "object ptr int int int", FALSE);
4054 register_icall (mono_array_new_4, "mono_array_new_4", "object ptr int int int int", FALSE);
4055 register_icall (mono_get_native_calli_wrapper, "mono_get_native_calli_wrapper", "ptr ptr ptr ptr", FALSE);
4056 register_icall (mono_resume_unwind, "mono_resume_unwind", "void", TRUE);
4057 register_icall (mono_gsharedvt_constrained_call, "mono_gsharedvt_constrained_call", "object ptr ptr ptr ptr ptr", FALSE);
4058 register_icall (mono_gsharedvt_value_copy, "mono_gsharedvt_value_copy", "void ptr ptr ptr", TRUE);
4059
4060 register_icall (mono_gc_wbarrier_value_copy_bitmap, "mono_gc_wbarrier_value_copy_bitmap", "void ptr ptr int int", FALSE);
4061
4062 register_icall (mono_object_castclass_with_cache, "mono_object_castclass_with_cache", "object object ptr ptr", FALSE);
4063 register_icall (mono_object_isinst_with_cache, "mono_object_isinst_with_cache", "object object ptr ptr", FALSE);
4064 register_icall (mono_generic_class_init, "mono_generic_class_init", "void ptr", FALSE);
4065 register_icall (mono_fill_class_rgctx, "mono_class_fill_rgctx", "ptr ptr int", FALSE);
4066 register_icall (mono_fill_method_rgctx, "mono_method_fill_rgctx", "ptr ptr int", FALSE);
4067
4068 register_icall (mono_debugger_agent_user_break, "mono_debugger_agent_user_break", "void", FALSE);
4069
4070 register_icall (mono_aot_init_llvm_method, "mono_aot_init_llvm_method", "void ptr int", TRUE);
4071 register_icall (mono_aot_init_gshared_method_this, "mono_aot_init_gshared_method_this", "void ptr int object", TRUE);
4072 register_icall (mono_aot_init_gshared_method_mrgctx, "mono_aot_init_gshared_method_mrgctx", "void ptr int ptr", TRUE);
4073 register_icall (mono_aot_init_gshared_method_vtable, "mono_aot_init_gshared_method_vtable", "void ptr int ptr", TRUE);
4074
4075 register_icall_no_wrapper (mono_resolve_iface_call_gsharedvt, "mono_resolve_iface_call_gsharedvt", "ptr object int ptr ptr");
4076 register_icall_no_wrapper (mono_resolve_vcall_gsharedvt, "mono_resolve_vcall_gsharedvt", "ptr object int ptr ptr");
4077 register_icall_no_wrapper (mono_resolve_generic_virtual_call, "mono_resolve_generic_virtual_call", "ptr ptr int ptr");
4078 register_icall_no_wrapper (mono_resolve_generic_virtual_iface_call, "mono_resolve_generic_virtual_iface_call", "ptr ptr int ptr");
4079 /* This needs a wrapper so it can have a preserveall cconv */
4080 register_icall (mono_init_vtable_slot, "mono_init_vtable_slot", "ptr ptr int", FALSE);
4081 register_icall (mono_llvmonly_init_delegate, "mono_llvmonly_init_delegate", "void object", TRUE);
4082 register_icall (mono_llvmonly_init_delegate_virtual, "mono_llvmonly_init_delegate_virtual", "void object object ptr", TRUE);
4083 register_icall (mono_get_assembly_object, "mono_get_assembly_object", "object ptr", TRUE);
4084 register_icall (mono_get_method_object, "mono_get_method_object", "object ptr", TRUE);
4085
4086 register_icall_with_wrapper (mono_monitor_enter, "mono_monitor_enter", "void obj");
4087 register_icall_with_wrapper (mono_monitor_enter_v4, "mono_monitor_enter_v4", "void obj ptr");
4088 register_icall_no_wrapper (mono_monitor_enter_fast, "mono_monitor_enter_fast", "int obj");
4089 register_icall_no_wrapper (mono_monitor_enter_v4_fast, "mono_monitor_enter_v4_fast", "int obj ptr");
4090
4091 #ifdef TARGET_IOS
4092 register_icall (pthread_getspecific, "pthread_getspecific", "ptr ptr", TRUE);
4093 #endif
4094 }
4095
4096 MonoJitStats mono_jit_stats = {0};
4097
4098 static void
4099 print_jit_stats (void)
4100 {
4101 if (mono_jit_stats.enabled) {
4102 g_print ("Mono Jit statistics\n");
4103 g_print ("Max code size ratio: %.2f (%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
4104 mono_jit_stats.max_ratio_method);
4105 g_print ("Biggest method: %ld (%s)\n", mono_jit_stats.biggest_method_size,
4106 mono_jit_stats.biggest_method);
4107
4108 g_print ("Delegates created: %ld\n", mono_stats.delegate_creations);
4109 g_print ("Initialized classes: %ld\n", mono_stats.initialized_class_count);
4110 g_print ("Used classes: %ld\n", mono_stats.used_class_count);
4111 g_print ("Generic vtables: %ld\n", mono_stats.generic_vtable_count);
4112 g_print ("Methods: %ld\n", mono_stats.method_count);
4113 g_print ("Static data size: %ld\n", mono_stats.class_static_data_size);
4114 g_print ("VTable data size: %ld\n", mono_stats.class_vtable_size);
4115 g_print ("Mscorlib mempool size: %d\n", mono_mempool_get_allocated (mono_defaults.corlib->mempool));
4116
4117 g_print ("\nInitialized classes: %ld\n", mono_stats.generic_class_count);
4118 g_print ("Inflated types: %ld\n", mono_stats.inflated_type_count);
4119 g_print ("Generics virtual invokes: %ld\n", mono_jit_stats.generic_virtual_invocations);
4120
4121 g_print ("Sharable generic methods: %ld\n", mono_stats.generics_sharable_methods);
4122 g_print ("Unsharable generic methods: %ld\n", mono_stats.generics_unsharable_methods);
4123 g_print ("Shared generic methods: %ld\n", mono_stats.generics_shared_methods);
4124 g_print ("Shared vtype generic methods: %ld\n", mono_stats.gsharedvt_methods);
4125
4126 g_print ("IMT tables size: %ld\n", mono_stats.imt_tables_size);
4127 g_print ("IMT number of tables: %ld\n", mono_stats.imt_number_of_tables);
4128 g_print ("IMT number of methods: %ld\n", mono_stats.imt_number_of_methods);
4129 g_print ("IMT used slots: %ld\n", mono_stats.imt_used_slots);
4130 g_print ("IMT colliding slots: %ld\n", mono_stats.imt_slots_with_collisions);
4131 g_print ("IMT max collisions: %ld\n", mono_stats.imt_max_collisions_in_slot);
4132 g_print ("IMT methods at max col: %ld\n", mono_stats.imt_method_count_when_max_collisions);
4133 g_print ("IMT thunks size: %ld\n", mono_stats.imt_thunks_size);
4134
4135 g_print ("JIT info table inserts: %ld\n", mono_stats.jit_info_table_insert_count);
4136 g_print ("JIT info table removes: %ld\n", mono_stats.jit_info_table_remove_count);
4137 g_print ("JIT info table lookups: %ld\n", mono_stats.jit_info_table_lookup_count);
4138
4139 g_free (mono_jit_stats.max_ratio_method);
4140 mono_jit_stats.max_ratio_method = NULL;
4141 g_free (mono_jit_stats.biggest_method);
4142 mono_jit_stats.biggest_method = NULL;
4143 }
4144 }
4145
4146 void
4147 mini_cleanup (MonoDomain *domain)
4148 {
4149 mono_runtime_shutdown_stat_profiler ();
4150
4151 #ifndef DISABLE_COM
4152 cominterop_release_all_rcws ();
4153 #endif
4154
4155 #ifndef MONO_CROSS_COMPILE
4156 /*
4157 * mono_domain_finalize () needs to be called early since it needs the
4158 * execution engine still fully working (it may invoke managed finalizers).
4159 */
4160 mono_domain_finalize (domain, 2000);
4161 #endif
4162
4163 /* This accesses metadata so needs to be called before runtime shutdown */
4164 print_jit_stats ();
4165
4166 mono_profiler_shutdown ();
4167
4168 #ifndef MONO_CROSS_COMPILE
4169 mono_runtime_cleanup (domain);
4170 #endif
4171
4172 free_jit_tls_data ((MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id));
4173
4174 mono_icall_cleanup ();
4175
4176 mono_runtime_cleanup_handlers ();
4177
4178 #ifndef MONO_CROSS_COMPILE
4179 mono_domain_free (domain, TRUE);
4180 #endif
4181
4182 #ifdef ENABLE_LLVM
4183 if (mono_use_llvm)
4184 mono_llvm_cleanup ();
4185 #endif
4186
4187 mono_aot_cleanup ();
4188
4189 mono_trampolines_cleanup ();
4190
4191 mono_unwind_cleanup ();
4192
4193 mono_code_manager_destroy (global_codeman);
4194 g_free (vtable_trampolines);
4195
4196 mini_jit_cleanup ();
4197
4198 mono_tramp_info_cleanup ();
4199
4200 mono_arch_cleanup ();
4201
4202 mono_generic_sharing_cleanup ();
4203
4204 mono_cleanup ();
4205
4206 mono_trace_cleanup ();
4207
4208 mono_counters_dump (MONO_COUNTER_SECTION_MASK | MONO_COUNTER_MONOTONIC, stdout);
4209
4210 if (mono_inject_async_exc_method)
4211 mono_method_desc_free (mono_inject_async_exc_method);
4212
4213 mono_native_tls_free (mono_jit_tls_id);
4214
4215 mono_os_mutex_destroy (&jit_mutex);
4216
4217 mono_code_manager_cleanup ();
4218
4219 #ifdef USE_JUMP_TABLES
4220 mono_jumptable_cleanup ();
4221 #endif
4222 }
4223
4224 void
4225 mono_set_defaults (int verbose_level, guint32 opts)
4226 {
4227 mini_verbose = verbose_level;
4228 mono_set_optimizations (opts);
4229 }
4230
4231 void
4232 mono_disable_optimizations (guint32 opts)
4233 {
4234 default_opt &= ~opts;
4235 }
4236
4237 void
4238 mono_set_optimizations (guint32 opts)
4239 {
4240 default_opt = opts;
4241 default_opt_set = TRUE;
4242 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4243 mono_set_generic_sharing_vt_supported (mono_aot_only || ((default_opt & MONO_OPT_GSHAREDVT) != 0));
4244 #else
4245 if (mono_llvm_only)
4246 mono_set_generic_sharing_vt_supported (TRUE);
4247 #endif
4248 }
4249
4250 void
4251 mono_set_verbose_level (guint32 level)
4252 {
4253 mini_verbose = level;
4254 }
4255
4256 /**
4257 * mono_get_runtime_build_info:
4258 *
4259 * Return the runtime version + build date in string format.
4260 * The returned string is owned by the caller. The returned string
4261 * format is "VERSION (FULL_VERSION BUILD_DATE)" and build date is optional.
4262 */
4263 char*
4264 mono_get_runtime_build_info (void)
4265 {
4266 if (mono_build_date)
4267 return g_strdup_printf ("%s (%s %s)", VERSION, FULL_VERSION, mono_build_date);
4268 else
4269 return g_strdup_printf ("%s (%s)", VERSION, FULL_VERSION);
4270 }
4271
4272 static void
4273 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
4274 {
4275 GHashTable *assemblies = (GHashTable*)user_data;
4276 MonoImage *image = mono_assembly_get_image (ass);
4277 MonoMethod *method, *invoke;
4278 int i, count = 0;
4279
4280 if (g_hash_table_lookup (assemblies, ass))
4281 return;
4282
4283 g_hash_table_insert (assemblies, ass, ass);
4284
4285 if (mini_verbose > 0)
4286 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
4287
4288 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
4289 MonoError error;
4290
4291 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL, NULL, &error);
4292 if (!method) {
4293 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4294 continue;
4295 }
4296 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
4297 continue;
4298 if (method->is_generic || method->klass->generic_container)
4299 continue;
4300
4301 count++;
4302 if (mini_verbose > 1) {
4303 char * desc = mono_method_full_name (method, TRUE);
4304 g_print ("Compiling %d %s\n", count, desc);
4305 g_free (desc);
4306 }
4307 mono_compile_method (method);
4308 if (strcmp (method->name, "Finalize") == 0) {
4309 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
4310 mono_compile_method (invoke);
4311 }
4312 #ifndef DISABLE_REMOTING
4313 if (mono_class_is_marshalbyref (method->klass) && mono_method_signature (method)->hasthis) {
4314 invoke = mono_marshal_get_remoting_invoke_with_check (method);
4315 mono_compile_method (invoke);
4316 }
4317 #endif
4318 }
4319
4320 /* Load and precompile referenced assemblies as well */
4321 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
4322 mono_assembly_load_reference (image, i);
4323 if (image->references [i])
4324 mono_precompile_assembly (image->references [i], assemblies);
4325 }
4326 }
4327
4328 void mono_precompile_assemblies ()
4329 {
4330 GHashTable *assemblies = g_hash_table_new (NULL, NULL);
4331
4332 mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
4333
4334 g_hash_table_destroy (assemblies);
4335 }
4336
4337 /*
4338 * Used by LLVM.
4339 * Have to export this for AOT.
4340 */
4341 void
4342 mono_personality (void)
4343 {
4344 /* Not used */
4345 g_assert_not_reached ();
4346 }
4347
4348 #ifdef USE_JUMP_TABLES
4349 #define DEFAULT_JUMPTABLE_CHUNK_ELEMENTS 128
4350
4351 typedef struct MonoJumpTableChunk {
4352 guint32 total;
4353 guint32 active;
4354 struct MonoJumpTableChunk *previous;
4355 /* gpointer entries[total]; */
4356 } MonoJumpTableChunk;
4357
4358 static MonoJumpTableChunk* g_jumptable;
4359 #define mono_jumptable_lock() mono_os_mutex_lock (&jumptable_mutex)
4360 #define mono_jumptable_unlock() mono_os_mutex_unlock (&jumptable_mutex)
4361 static mono_mutex_t jumptable_mutex;
4362
4363 static MonoJumpTableChunk*
4364 mono_create_jumptable_chunk (guint32 max_entries)
4365 {
4366 guint32 size = sizeof (MonoJumpTableChunk) + max_entries * sizeof(gpointer);
4367 MonoJumpTableChunk *chunk = (MonoJumpTableChunk*) g_new0 (guchar, size);
4368 chunk->total = max_entries;
4369 return chunk;
4370 }
4371
4372 void
4373 mono_jumptable_init (void)
4374 {
4375 if (g_jumptable == NULL) {
4376 mono_os_mutex_init_recursive (&jumptable_mutex);
4377 g_jumptable = mono_create_jumptable_chunk (DEFAULT_JUMPTABLE_CHUNK_ELEMENTS);
4378 }
4379 }
4380
4381 gpointer*
4382 mono_jumptable_add_entry (void)
4383 {
4384 return mono_jumptable_add_entries (1);
4385 }
4386
4387 gpointer*
4388 mono_jumptable_add_entries (guint32 entries)
4389 {
4390 guint32 index;
4391 gpointer *result;
4392
4393 mono_jumptable_init ();
4394 mono_jumptable_lock ();
4395 index = g_jumptable->active;
4396 if (index + entries >= g_jumptable->total) {
4397 /*
4398 * Grow jumptable, by adding one more chunk.
4399 * We cannot realloc jumptable, as there could be pointers
4400 * to existing jump table entries in the code, so instead
4401 * we just add one more chunk.
4402 */
4403 guint32 max_entries = entries;
4404 MonoJumpTableChunk *new_chunk;
4405
4406 if (max_entries < DEFAULT_JUMPTABLE_CHUNK_ELEMENTS)
4407 max_entries = DEFAULT_JUMPTABLE_CHUNK_ELEMENTS;
4408 new_chunk = mono_create_jumptable_chunk (max_entries);
4409 /* Link old jumptable, so that we could free it up later. */
4410 new_chunk->previous = g_jumptable;
4411 g_jumptable = new_chunk;
4412 index = 0;
4413 }
4414 g_jumptable->active = index + entries;
4415 result = (gpointer*)((guchar*)g_jumptable + sizeof(MonoJumpTableChunk)) + index;
4416 mono_jumptable_unlock();
4417
4418 return result;
4419 }
4420
4421 void
4422 mono_jumptable_cleanup (void)
4423 {
4424 if (g_jumptable) {
4425 MonoJumpTableChunk *current = g_jumptable, *prev;
4426 while (current != NULL) {
4427 prev = current->previous;
4428 g_free (current);
4429 current = prev;
4430 }
4431 g_jumptable = NULL;
4432 mono_os_mutex_destroy (&jumptable_mutex);
4433 }
4434 }
4435
4436 gpointer*
4437 mono_jumptable_get_entry (guint8 *code_ptr)
4438 {
4439 return mono_arch_jumptable_entry_from_code (code_ptr);
4440 }
4441 #endif
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