2 * aot-runtime.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
9 * Copyright 2003-2011 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc.
14 #include <sys/types.h>
20 #ifdef HAVE_SYS_MMAN_H
29 #ifdef HAVE_EXECINFO_H
36 #ifdef HAVE_SYS_WAIT_H
37 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
40 #include <mono/metadata/abi-details.h>
41 #include <mono/metadata/tabledefs.h>
42 #include <mono/metadata/class.h>
43 #include <mono/metadata/object.h>
44 #include <mono/metadata/tokentype.h>
45 #include <mono/metadata/appdomain.h>
46 #include <mono/metadata/debug-helpers.h>
47 #include <mono/metadata/assembly.h>
48 #include <mono/metadata/metadata-internals.h>
49 #include <mono/metadata/marshal.h>
50 #include <mono/metadata/gc-internals.h>
51 #include <mono/metadata/threads-types.h>
52 #include <mono/metadata/mono-endian.h>
53 #include <mono/utils/mono-logger-internals.h>
54 #include <mono/utils/mono-mmap.h>
55 #include <mono/utils/mono-compiler.h>
56 #include <mono/utils/mono-counters.h>
57 #include <mono/utils/mono-digest.h>
60 #include "seq-points.h"
62 #include "debugger-agent.h"
63 #include "aot-compiler.h"
68 #define ENABLE_AOT_CACHE
71 /* Number of got entries shared between the JIT and LLVM GOT */
72 #define N_COMMON_GOT_ENTRIES 10
74 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
75 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
76 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
83 typedef struct MonoAotModule {
85 /* Pointer to the Global Offset Table */
89 GHashTable *name_cache;
90 GHashTable *extra_methods;
91 /* Maps methods to their code */
92 GHashTable *method_to_code;
93 /* Maps pointers into the method info to the methods themselves */
94 GHashTable *method_ref_to_method;
95 MonoAssemblyName *image_names;
97 MonoAssembly *assembly;
98 MonoImage **image_table;
99 guint32 image_table_len;
100 gboolean out_of_date;
102 gboolean got_initializing;
105 guint8 *jit_code_start;
106 guint8 *jit_code_end;
107 guint8 *llvm_code_start;
108 guint8 *llvm_code_end;
112 /* Maps method indexes to their code */
114 /* Sorted array of method addresses */
115 gpointer *sorted_methods;
116 /* Method indexes for each method in sorted_methods */
117 int *sorted_method_indexes;
118 /* The length of the two tables above */
119 int sorted_methods_len;
120 guint32 *method_info_offsets;
121 guint32 *ex_info_offsets;
122 guint32 *class_info_offsets;
123 guint32 *got_info_offsets;
124 guint32 *llvm_got_info_offsets;
125 guint32 *methods_loaded;
126 guint16 *class_name_table;
127 guint32 *extra_method_table;
128 guint32 *extra_method_info_offsets;
129 guint32 *unbox_trampolines;
130 guint32 *unbox_trampolines_end;
131 guint32 *unbox_trampoline_addresses;
134 /* Points to the mono EH data created by LLVM */
135 guint8 *mono_eh_frame;
137 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
138 gpointer tables [MONO_AOT_TABLE_NUM];
139 /* Points to the trampolines */
140 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
141 /* The first unused trampoline of each kind */
142 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
144 gboolean use_page_trampolines;
146 MonoAotFileInfo info;
151 JitInfoMap *async_jit_info_table;
157 unsigned char *trampolines;
158 unsigned char *trampolines_end;
161 static GHashTable *aot_modules;
162 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
163 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
164 static mono_mutex_t aot_mutex;
167 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
168 * AOT modules registered by mono_aot_register_module ().
170 static GHashTable *static_aot_modules;
173 * Maps MonoJitInfo* to the aot module they belong to, this can be different
174 * from ji->method->klass->image's aot module for generic instances.
176 static GHashTable *ji_to_amodule;
179 * Whenever to AOT compile loaded assemblies on demand and store them in
182 static gboolean enable_aot_cache = FALSE;
184 static gboolean mscorlib_aot_loaded;
187 static gint32 mono_last_aot_method = -1;
189 static gboolean make_unreadable = FALSE;
190 static guint32 name_table_accesses = 0;
191 static guint32 n_pagefaults = 0;
193 /* Used to speed-up find_aot_module () */
194 static gsize aot_code_low_addr = (gssize)-1;
195 static gsize aot_code_high_addr = 0;
198 static gint32 async_jit_info_size;
200 static GHashTable *aot_jit_icall_hash;
203 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
205 #define USE_PAGE_TRAMPOLINES 0
208 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
209 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
210 static mono_mutex_t aot_page_mutex;
212 static MonoAotModule *mscorlib_aot_module;
215 init_plt (MonoAotModule *info);
218 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
221 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context);
224 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
227 amodule_lock (MonoAotModule *amodule)
229 mono_os_mutex_lock (&amodule->mutex);
233 amodule_unlock (MonoAotModule *amodule)
235 mono_os_mutex_unlock (&amodule->mutex);
241 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
242 * found, and sets the loader error if SET_ERROR is TRUE.
245 load_image (MonoAotModule *amodule, int index, gboolean set_error)
247 MonoAssembly *assembly;
248 MonoImageOpenStatus status;
250 g_assert (index < amodule->image_table_len);
252 if (amodule->image_table [index])
253 return amodule->image_table [index];
254 if (amodule->out_of_date)
257 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
259 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable because dependency %s is not found.\n", amodule->aot_name, amodule->image_names [index].name);
260 amodule->out_of_date = TRUE;
263 char *full_name = mono_stringify_assembly_name (&amodule->image_names [index]);
264 mono_loader_set_error_assembly_load (full_name, FALSE);
270 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
271 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').\n", amodule->aot_name, amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
272 amodule->out_of_date = TRUE;
276 amodule->image_table [index] = assembly->image;
277 return assembly->image;
281 decode_value (guint8 *ptr, guint8 **rptr)
286 if ((b & 0x80) == 0){
289 } else if ((b & 0x40) == 0){
290 len = ((b & 0x3f) << 8 | ptr [1]);
292 } else if (b != 0xff) {
293 len = ((b & 0x1f) << 24) |
300 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
306 //printf ("DECODE: %d.\n", len);
311 * mono_aot_get_offset:
313 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
317 mono_aot_get_offset (guint32 *table, int index)
319 int i, group, ngroups, index_entry_size;
320 int start_offset, offset, group_size;
321 guint8 *data_start, *p;
322 guint32 *index32 = NULL;
323 guint16 *index16 = NULL;
325 /* noffsets = table [0]; */
326 group_size = table [1];
328 index_entry_size = table [3];
329 group = index / group_size;
331 if (index_entry_size == 2) {
332 index16 = (guint16*)&table [4];
333 data_start = (guint8*)&index16 [ngroups];
334 p = data_start + index16 [group];
336 index32 = (guint32*)&table [4];
337 data_start = (guint8*)&index32 [ngroups];
338 p = data_start + index32 [group];
341 /* offset will contain the value of offsets [group * group_size] */
342 offset = start_offset = decode_value (p, &p);
343 for (i = group * group_size + 1; i <= index; ++i) {
344 offset += decode_value (p, &p);
347 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
353 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
356 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
359 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
361 static MonoGenericInst*
362 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
365 MonoType **type_argv;
366 MonoGenericInst *inst;
369 type_argc = decode_value (p, &p);
370 type_argv = g_new0 (MonoType*, type_argc);
372 for (i = 0; i < type_argc; ++i) {
373 MonoClass *pclass = decode_klass_ref (module, p, &p);
378 type_argv [i] = &pclass->byval_arg;
381 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
390 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
397 argc = decode_value (p, &p);
400 ctx->class_inst = decode_generic_inst (module, p, &p);
401 if (!ctx->class_inst)
405 argc = decode_value (p, &p);
408 ctx->method_inst = decode_generic_inst (module, p, &p);
409 if (!ctx->method_inst)
418 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
422 MonoClass *klass = NULL, *eklass;
423 guint32 token, rank, idx;
427 reftype = decode_value (p, &p);
434 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
435 idx = decode_value (p, &p);
436 image = load_image (module, 0, TRUE);
439 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
440 g_assert (mono_error_ok (&error));
442 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
443 idx = decode_value (p, &p);
444 image = load_image (module, decode_value (p, &p), TRUE);
447 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
448 g_assert (mono_error_ok (&error));
450 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
451 token = decode_value (p, &p);
452 image = module->assembly->image;
455 klass = mono_class_get_checked (image, token, &error);
456 g_assert (mono_error_ok (&error));
458 case MONO_AOT_TYPEREF_GINST: {
460 MonoGenericContext ctx;
463 gclass = decode_klass_ref (module, p, &p);
466 g_assert (gclass->generic_container);
468 memset (&ctx, 0, sizeof (ctx));
469 ctx.class_inst = decode_generic_inst (module, p, &p);
472 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
473 klass = mono_class_from_mono_type (type);
474 mono_metadata_free_type (type);
477 case MONO_AOT_TYPEREF_VAR: {
479 MonoGenericContainer *container = NULL;
480 gboolean has_constraint = decode_value (p, &p);
482 if (has_constraint) {
483 MonoClass *par_klass;
484 MonoType *gshared_constraint;
486 gshared_constraint = decode_type (module, p, &p);
487 if (!gshared_constraint)
490 par_klass = decode_klass_ref (module, p, &p);
494 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
495 klass = mono_class_from_mono_type (t);
497 int type = decode_value (p, &p);
498 int num = decode_value (p, &p);
499 gboolean is_not_anonymous = decode_value (p, &p);
501 if (is_not_anonymous) {
502 gboolean is_method = decode_value (p, &p);
505 MonoMethod *method_def;
506 g_assert (type == MONO_TYPE_MVAR);
507 method_def = decode_resolve_method_ref (module, p, &p);
511 container = mono_method_get_generic_container (method_def);
513 MonoClass *class_def;
514 g_assert (type == MONO_TYPE_VAR);
515 class_def = decode_klass_ref (module, p, &p);
519 container = class_def->generic_container;
522 // We didn't decode is_method, so we have to infer it from type enum.
523 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
526 t = g_new0 (MonoType, 1);
527 t->type = (MonoTypeEnum)type;
528 if (is_not_anonymous) {
529 t->data.generic_param = mono_generic_container_get_param (container, num);
532 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
533 par->owner = container;
535 t->data.generic_param = par;
536 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
538 // FIXME: Maybe use types directly to avoid
539 // the overhead of creating MonoClass-es
540 klass = mono_class_from_mono_type (t);
546 case MONO_AOT_TYPEREF_ARRAY:
548 rank = decode_value (p, &p);
549 eklass = decode_klass_ref (module, p, &p);
550 klass = mono_array_class_get (eklass, rank);
552 case MONO_AOT_TYPEREF_PTR: {
555 t = decode_type (module, p, &p);
558 klass = mono_class_from_mono_type (t);
562 case MONO_AOT_TYPEREF_BLOB_INDEX: {
563 guint32 offset = decode_value (p, &p);
566 p2 = module->blob + offset;
567 klass = decode_klass_ref (module, p2, &p2);
571 g_assert_not_reached ();
574 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
579 static MonoClassField*
580 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
582 MonoClass *klass = decode_klass_ref (module, buf, &buf);
589 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
593 return mono_class_get_field (klass, token);
597 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
601 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
606 t = (MonoType *)g_malloc0 (sizeof (MonoType));
609 if (*p == MONO_TYPE_PINNED) {
612 } else if (*p == MONO_TYPE_BYREF) {
620 t->type = (MonoTypeEnum)*p;
625 case MONO_TYPE_BOOLEAN:
639 case MONO_TYPE_STRING:
640 case MONO_TYPE_OBJECT:
641 case MONO_TYPE_TYPEDBYREF:
643 case MONO_TYPE_VALUETYPE:
644 case MONO_TYPE_CLASS:
645 t->data.klass = decode_klass_ref (module, p, &p);
647 case MONO_TYPE_SZARRAY:
648 t->data.klass = decode_klass_ref (module, p, &p);
654 t->data.type = decode_type (module, p, &p);
656 case MONO_TYPE_GENERICINST: {
658 MonoGenericContext ctx;
662 gclass = decode_klass_ref (module, p, &p);
665 g_assert (gclass->generic_container);
667 memset (&ctx, 0, sizeof (ctx));
668 ctx.class_inst = decode_generic_inst (module, p, &p);
671 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
672 klass = mono_class_from_mono_type (type);
673 t->data.generic_class = klass->generic_class;
676 case MONO_TYPE_ARRAY: {
677 MonoArrayType *array;
680 // FIXME: memory management
681 array = g_new0 (MonoArrayType, 1);
682 array->eklass = decode_klass_ref (module, p, &p);
685 array->rank = decode_value (p, &p);
686 array->numsizes = decode_value (p, &p);
689 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
690 for (i = 0; i < array->numsizes; ++i)
691 array->sizes [i] = decode_value (p, &p);
693 array->numlobounds = decode_value (p, &p);
694 if (array->numlobounds)
695 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
696 for (i = 0; i < array->numlobounds; ++i)
697 array->lobounds [i] = decode_value (p, &p);
698 t->data.array = array;
702 case MONO_TYPE_MVAR: {
703 MonoClass *klass = decode_klass_ref (module, p, &p);
706 t->data.generic_param = klass->byval_arg.data.generic_param;
710 g_assert_not_reached ();
718 // FIXME: Error handling, memory management
720 static MonoMethodSignature*
721 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
723 MonoMethodSignature *sig;
725 int i, gen_param_count = 0, param_count, call_conv;
727 gboolean hasthis, explicit_this, has_gen_params;
731 has_gen_params = (flags & 0x10) != 0;
732 hasthis = (flags & 0x20) != 0;
733 explicit_this = (flags & 0x40) != 0;
734 call_conv = flags & 0x0F;
737 gen_param_count = decode_value (p, &p);
738 param_count = decode_value (p, &p);
739 if (target && param_count != target->param_count)
741 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
742 sig->param_count = param_count;
743 sig->sentinelpos = -1;
744 sig->hasthis = hasthis;
745 sig->explicit_this = explicit_this;
746 sig->call_convention = call_conv;
747 sig->generic_param_count = gen_param_count;
748 sig->ret = decode_type (module, p, &p);
749 for (i = 0; i < param_count; ++i) {
750 if (*p == MONO_TYPE_SENTINEL) {
751 g_assert (sig->call_convention == MONO_CALL_VARARG);
752 sig->sentinelpos = i;
755 sig->params [i] = decode_type (module, p, &p);
758 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
759 sig->sentinelpos = sig->param_count;
766 static MonoMethodSignature*
767 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
769 return decode_signature_with_target (module, NULL, buf, endbuf);
773 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
775 MonoMethodSignature *sig;
779 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
780 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
786 /* Stores information returned by decode_method_ref () */
791 gboolean no_aot_trampoline;
795 * decode_method_ref_with_target:
797 * Decode a method reference, storing the image/token into a MethodRef structure.
798 * This avoids loading metadata for the method if the caller does not need it. If the method has
799 * no token, then it is loaded from metadata and ref->method is set to the method instance.
800 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
801 * couldn't resolve to TARGET, and return FALSE.
802 * There are some kinds of method references which only support a non-null TARGET.
803 * This means that its not possible to decode this into a method, only to check
804 * that the method reference matches a given method. This is normally not a problem
805 * as these wrappers only occur in the extra_methods table, where we already have
806 * a method we want to lookup.
809 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
811 guint32 image_index, value;
812 MonoImage *image = NULL;
815 memset (ref, 0, sizeof (MethodRef));
817 value = decode_value (p, &p);
818 image_index = value >> 24;
820 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
821 ref->no_aot_trampoline = TRUE;
822 value = decode_value (p, &p);
823 image_index = value >> 24;
826 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
827 if (target && target->wrapper_type)
831 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
833 guint32 wrapper_type;
835 wrapper_type = decode_value (p, &p);
837 if (target && target->wrapper_type != wrapper_type)
841 image = mono_defaults.corlib;
843 switch (wrapper_type) {
844 #ifndef DISABLE_REMOTING
845 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
846 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
850 mono_class_init (m->klass);
854 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
857 case MONO_WRAPPER_PROXY_ISINST: {
858 MonoClass *klass = decode_klass_ref (module, p, &p);
861 ref->method = mono_marshal_get_proxy_cancast (klass);
864 case MONO_WRAPPER_LDFLD:
865 case MONO_WRAPPER_LDFLDA:
866 case MONO_WRAPPER_STFLD:
867 case MONO_WRAPPER_ISINST: {
868 MonoClass *klass = decode_klass_ref (module, p, &p);
871 if (wrapper_type == MONO_WRAPPER_LDFLD)
872 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
873 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
874 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
875 else if (wrapper_type == MONO_WRAPPER_STFLD)
876 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
877 else if (wrapper_type == MONO_WRAPPER_ISINST)
878 ref->method = mono_marshal_get_isinst (klass);
880 g_assert_not_reached ();
883 case MONO_WRAPPER_LDFLD_REMOTE:
884 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
886 case MONO_WRAPPER_STFLD_REMOTE:
887 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
890 case MONO_WRAPPER_ALLOC: {
891 int atype = decode_value (p, &p);
893 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
895 g_error ("Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
898 case MONO_WRAPPER_WRITE_BARRIER: {
899 ref->method = mono_gc_get_write_barrier ();
902 case MONO_WRAPPER_STELEMREF: {
903 int subtype = decode_value (p, &p);
905 if (subtype == WRAPPER_SUBTYPE_NONE) {
906 ref->method = mono_marshal_get_stelemref ();
907 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
910 kind = decode_value (p, &p);
912 /* Can't decode this */
915 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
916 info = mono_marshal_get_wrapper_info (target);
919 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
920 ref->method = target;
927 g_assert_not_reached ();
931 case MONO_WRAPPER_SYNCHRONIZED: {
932 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
936 ref->method = mono_marshal_get_synchronized_wrapper (m);
939 case MONO_WRAPPER_UNKNOWN: {
940 int subtype = decode_value (p, &p);
942 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
943 MonoClass *klass = decode_klass_ref (module, p, &p);
950 if (klass != target->klass)
953 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
954 if (strcmp (target->name, "PtrToStructure"))
956 ref->method = mono_marshal_get_ptr_to_struct (klass);
958 if (strcmp (target->name, "StructureToPtr"))
960 ref->method = mono_marshal_get_struct_to_ptr (klass);
962 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
963 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
967 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
968 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
969 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
973 ref->method = mono_marshal_get_array_accessor_wrapper (m);
974 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
975 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
976 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
977 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
978 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
979 MonoMethodSignature *sig = decode_signature (module, p, &p);
982 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
983 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
984 MonoMethodSignature *sig = decode_signature (module, p, &p);
987 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
989 g_assert_not_reached ();
993 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
994 int subtype = decode_value (p, &p);
996 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
997 int rank = decode_value (p, &p);
998 int elem_size = decode_value (p, &p);
1000 ref->method = mono_marshal_get_array_address (rank, elem_size);
1001 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1004 m = decode_resolve_method_ref (module, p, &p);
1010 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1012 info = mono_marshal_get_wrapper_info (target);
1013 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1014 ref->method = target;
1020 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1022 int subtype = decode_value (p, &p);
1025 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1030 if (strcmp (target->name, name) != 0)
1032 ref->method = target;
1034 m = decode_resolve_method_ref (module, p, &p);
1039 /* This should only happen when looking for an extra method */
1042 if (mono_marshal_method_from_wrapper (target) == m)
1043 ref->method = target;
1049 case MONO_WRAPPER_CASTCLASS: {
1050 int subtype = decode_value (p, &p);
1052 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1053 ref->method = mono_marshal_get_castclass_with_cache ();
1054 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1055 ref->method = mono_marshal_get_isinst_with_cache ();
1057 g_assert_not_reached ();
1060 case MONO_WRAPPER_RUNTIME_INVOKE: {
1061 int subtype = decode_value (p, &p);
1062 int pass_rgctx = decode_value (p, &p);
1067 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1068 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1070 ref->method = target;
1071 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1072 /* Direct wrapper */
1073 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1077 ref->method = mono_marshal_get_runtime_invoke (m, FALSE, pass_rgctx);
1078 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1079 /* Virtual direct wrapper */
1080 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1084 ref->method = mono_marshal_get_runtime_invoke (m, TRUE, pass_rgctx);
1086 MonoMethodSignature *sig;
1088 sig = decode_signature_with_target (module, NULL, p, &p);
1089 info = mono_marshal_get_wrapper_info (target);
1092 if (info->subtype != subtype)
1094 if (info->d.runtime_invoke.pass_rgctx != pass_rgctx)
1096 g_assert (info->d.runtime_invoke.sig);
1097 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1098 ref->method = target;
1104 case MONO_WRAPPER_DELEGATE_INVOKE:
1105 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1106 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1107 gboolean is_inflated = decode_value (p, &p);
1108 WrapperSubtype subtype;
1112 MonoMethod *invoke, *wrapper;
1114 klass = decode_klass_ref (module, p, &p);
1118 switch (wrapper_type) {
1119 case MONO_WRAPPER_DELEGATE_INVOKE:
1120 invoke = mono_get_delegate_invoke (klass);
1121 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1123 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1124 invoke = mono_get_delegate_begin_invoke (klass);
1125 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1127 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1128 invoke = mono_get_delegate_end_invoke (klass);
1129 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1132 g_assert_not_reached ();
1137 * Due to the way mini_get_shared_method () works, we could end up with
1138 * multiple copies of the same wrapper.
1140 if (wrapper->klass != target->klass)
1142 ref->method = target;
1144 ref->method = wrapper;
1148 * These wrappers are associated with a signature, not with a method.
1149 * Since we can't decode them into methods, they need a target method.
1154 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1155 subtype = (WrapperSubtype)decode_value (p, &p);
1156 info = mono_marshal_get_wrapper_info (target);
1158 if (info->subtype != subtype)
1161 if (subtype != WRAPPER_SUBTYPE_NONE)
1165 if (sig_matches_target (module, target, p, &p))
1166 ref->method = target;
1172 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1176 m = decode_resolve_method_ref (module, p, &p);
1179 klass = decode_klass_ref (module, p, &p);
1182 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1186 g_assert_not_reached ();
1188 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1189 image_index = decode_value (p, &p);
1190 ref->token = decode_value (p, &p);
1192 image = load_image (module, image_index, TRUE);
1195 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1198 MonoGenericContext ctx;
1201 * These methods do not have a token which resolves them, so we
1202 * resolve them immediately.
1204 klass = decode_klass_ref (module, p, &p);
1208 if (target && target->klass != klass)
1211 image_index = decode_value (p, &p);
1212 ref->token = decode_value (p, &p);
1214 image = load_image (module, image_index, TRUE);
1218 ref->method = mono_get_method_full (image, ref->token, NULL, NULL);
1222 memset (&ctx, 0, sizeof (ctx));
1224 if (FALSE && klass->generic_class) {
1225 ctx.class_inst = klass->generic_class->context.class_inst;
1226 ctx.method_inst = NULL;
1228 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1229 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
1232 memset (&ctx, 0, sizeof (ctx));
1234 if (!decode_generic_context (module, &ctx, p, &p))
1237 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1238 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
1239 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1243 klass = decode_klass_ref (module, p, &p);
1246 method_type = decode_value (p, &p);
1247 switch (method_type) {
1249 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1252 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1255 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1258 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1261 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1264 g_assert_not_reached ();
1267 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1268 image_index = decode_value (p, &p);
1269 value = decode_value (p, &p);
1272 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1274 image = load_image (module, image_index, TRUE);
1287 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1289 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1293 * decode_resolve_method_ref_with_target:
1295 * Similar to decode_method_ref, but resolve and return the method itself.
1298 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1303 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1310 return mono_get_method (ref.image, ref.token, NULL);
1314 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1316 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1319 #ifdef ENABLE_AOT_CACHE
1325 * - Add options for controlling the cache size
1326 * - Handle full cache by deleting old assemblies lru style
1327 * - Maybe add a threshold after an assembly is AOT compiled
1328 * - Add options for enabling this for specific main assemblies
1331 /* The cache directory */
1332 static char *cache_dir;
1334 /* The number of assemblies AOTed in this run */
1335 static int cache_count;
1337 /* Whenever to AOT in-process */
1338 static gboolean in_process;
1341 collect_assemblies (gpointer data, gpointer user_data)
1343 MonoAssembly *ass = data;
1344 GSList **l = user_data;
1346 *l = g_slist_prepend (*l, ass);
1349 #define SHA1_DIGEST_LENGTH 20
1352 * get_aot_config_hash:
1354 * Return a hash for all the version information an AOT module depends on.
1356 static G_GNUC_UNUSED char*
1357 get_aot_config_hash (MonoAssembly *assembly)
1360 GSList *l, *assembly_list = NULL;
1363 guint8 digest [SHA1_DIGEST_LENGTH];
1366 build_info = mono_get_runtime_build_info ();
1368 s = g_string_new (build_info);
1370 mono_assembly_foreach (collect_assemblies, &assembly_list);
1373 * The assembly list includes the current assembly as well, no need
1376 for (l = assembly_list; l; l = l->next) {
1377 MonoAssembly *ass = l->data;
1379 g_string_append (s, "_");
1380 g_string_append (s, ass->aname.name);
1381 g_string_append (s, "_");
1382 g_string_append (s, ass->image->guid);
1385 for (i = 0; i < s->len; ++i) {
1386 if (!isalnum (s->str [i]) && s->str [i] != '-')
1390 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1392 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1393 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1394 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1396 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1398 g_string_free (s, TRUE);
1404 aot_cache_init (void)
1408 enable_aot_cache = TRUE;
1413 * aot_cache_load_module:
1415 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1418 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1420 MonoAotCacheConfig *config;
1422 char *fname, *tmp2, *aot_options, *failure_fname;
1434 if (image_is_dynamic (assembly->image))
1437 /* Check in the list of assemblies enabled for aot caching */
1438 config = mono_get_aot_cache_config ();
1442 MonoDomain *domain = mono_domain_get ();
1443 MonoAssembly *entry_assembly = domain->entry_assembly;
1445 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1446 for (l = config->apps; l; l = l->next) {
1449 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1457 for (l = config->assemblies; l; l = l->next) {
1460 if (!strcmp (assembly->aname.name, n))
1470 home = g_get_home_dir ();
1473 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1474 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1475 g_mkdir_with_parents (cache_dir, 0777);
1479 * The same assembly can be used in multiple configurations, i.e. multiple
1480 * versions of the runtime, with multiple versions of dependent assemblies etc.
1481 * To handle this, we compute a version string containing all this information, hash it,
1482 * and use the hash as a filename suffix.
1484 hash = get_aot_config_hash (assembly);
1486 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1487 fname = g_build_filename (cache_dir, tmp2, NULL);
1491 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1492 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1495 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1499 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1501 * Can't AOT this during startup, so we AOT it when called later from
1502 * mono_aot_get_method ().
1506 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1508 /* Only AOT one assembly per run to avoid slowing down execution too much */
1509 if (cache_count > 0)
1513 /* Check for previous failure */
1514 failure_fname = g_strdup_printf ("%s.failure", fname);
1515 failure_file = fopen (failure_fname, "r");
1517 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1518 g_free (failure_fname);
1521 g_free (failure_fname);
1522 fclose (failure_file);
1525 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1528 * We need to invoke the AOT compiler here. There are multiple approaches:
1529 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1530 * its hard to make the new process load the same set of assemblies.
1531 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1533 * - fork a new process and do the work there.
1536 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1537 /* Maybe due this in another thread ? */
1538 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1540 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1541 failure_fname = g_strdup_printf ("%s.failure", fname);
1542 failure_file = fopen (failure_fname, "a+");
1543 fclose (failure_file);
1544 g_free (failure_fname);
1546 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1550 * - Avoid waiting for the aot process to finish ?
1551 * (less overhead, but multiple processes could aot the same assembly at the same time)
1560 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1561 logfile = fopen (logfile_name, "a+");
1562 g_free (logfile_name);
1564 dup2 (fileno (logfile), 1);
1565 dup2 (fileno (logfile), 2);
1567 aot_options = g_strdup_printf ("outfile=%s", fname);
1568 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1576 waitpid (pid, &exit_status, 0);
1577 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1578 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1580 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1584 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1592 aot_cache_init (void)
1597 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1605 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1609 guint16 *table, *entry;
1612 char *symbol = (char*)name;
1615 symbol = g_strdup_printf ("_%s", name);
1618 /* The first entry points to the hash */
1619 table = (guint16 *)globals [0];
1622 table_size = table [0];
1625 hash = mono_metadata_str_hash (symbol) % table_size;
1627 entry = &table [hash * 2];
1629 /* Search the hash for the index into the globals table */
1631 while (entry [0] != 0) {
1632 guint32 index = entry [0] - 1;
1633 guint32 next = entry [1];
1635 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1637 if (!strcmp (globals [index * 2], symbol)) {
1638 global_index = index;
1643 entry = &table [next * 2];
1649 if (global_index != -1)
1650 *value = globals [global_index * 2 + 1];
1657 char *err = mono_dl_symbol (module, name, value);
1664 /* Load the separate aot data file for ASSEMBLY */
1666 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1673 * Use <assembly name>.aotdata as the default implementation if no callback is given
1675 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1676 map = mono_file_map_open (filename);
1678 data = mono_file_map (info->datafile_size, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (map), 0, ret_handle);
1685 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1689 gboolean usable = TRUE;
1690 gboolean full_aot, safepoints;
1691 guint32 excluded_cpu_optimizations;
1693 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1694 msg = g_strdup_printf ("doesn't match assembly");
1698 build_info = mono_get_runtime_build_info ();
1699 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1700 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1703 g_free (build_info);
1705 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1707 if (mono_aot_only && !full_aot) {
1708 msg = g_strdup_printf ("not compiled with --aot=full");
1711 if (!mono_aot_only && full_aot) {
1712 msg = g_strdup_printf ("compiled with --aot=full");
1715 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1716 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1720 /* mono_arch_find_imt_method () requires this */
1721 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1722 msg = g_strdup_printf ("compiled against LLVM");
1725 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1726 msg = g_strdup_printf ("not compiled against LLVM");
1730 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1731 msg = g_strdup_printf ("not compiled for debugging");
1735 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1736 if (info->opts & excluded_cpu_optimizations) {
1737 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1741 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1742 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1746 if (info->gc_name_index != -1) {
1747 char *gc_name = (char*)&blob [info->gc_name_index];
1748 const char *current_gc_name = mono_gc_get_gc_name ();
1750 if (strcmp (current_gc_name, gc_name) != 0) {
1751 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1756 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1758 if (!safepoints && mono_threads_is_coop_enabled ()) {
1759 msg = g_strdup_printf ("not compiled with safepoints");
1768 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1771 get_call_table_entry (void *table, int index)
1773 #if defined(TARGET_ARM)
1778 ins_addr = (guint32*)table + index;
1780 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1782 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1783 return (char*)ins_addr + (offset * 2) + 8 + 1;
1785 offset = (((int)ins & 0xffffff) << 8) >> 8;
1786 return (char*)ins_addr + (offset * 4) + 8;
1788 #elif defined(TARGET_ARM64)
1789 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1790 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1791 /* The callee expects an ip which points after the call */
1792 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1794 g_assert_not_reached ();
1802 * Initialize the shared got entries for AMODULE.
1805 init_amodule_got (MonoAotModule *amodule)
1809 MonoJumpInfo *patches;
1810 guint32 got_offsets [128];
1813 /* These can't be initialized in load_aot_module () */
1814 if (amodule->shared_got [0] || amodule->got_initializing)
1817 amodule->got_initializing = TRUE;
1819 mp = mono_mempool_new ();
1820 npatches = amodule->info.nshared_got_entries;
1821 for (i = 0; i < npatches; ++i)
1822 got_offsets [i] = i;
1823 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1825 for (i = 0; i < npatches; ++i) {
1828 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1829 amodule->shared_got [i] = NULL;
1830 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1831 amodule->shared_got [i] = NULL;
1832 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1833 amodule->shared_got [i] = NULL;
1834 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1835 amodule->shared_got [i] = amodule->assembly->image;
1836 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1837 if (mono_defaults.corlib) {
1838 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1840 if (mscorlib_amodule)
1841 amodule->shared_got [i] = mscorlib_amodule->got;
1843 amodule->shared_got [i] = amodule->got;
1845 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1846 amodule->shared_got [i] = amodule;
1848 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE);
1853 for (i = 0; i < npatches; ++i)
1854 amodule->got [i] = amodule->shared_got [i];
1856 if (amodule->llvm_got) {
1857 for (i = 0; i < npatches; ++i)
1858 amodule->llvm_got [i] = amodule->shared_got [i];
1861 mono_mempool_destroy (mp);
1865 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1868 MonoAotModule *amodule;
1870 gboolean usable = TRUE;
1871 char *version_symbol = NULL;
1873 gpointer *globals = NULL;
1874 MonoAotFileInfo *info = NULL;
1876 gboolean do_load_image = TRUE;
1877 int align_double, align_int64;
1878 guint8 *aot_data = NULL;
1880 if (mono_compile_aot)
1883 if (assembly->image->aot_module)
1885 * Already loaded. This can happen because the assembly loading code might invoke
1886 * the assembly load hooks multiple times for the same assembly.
1890 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1894 if (static_aot_modules)
1895 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1903 /* Statically linked AOT module */
1904 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1905 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1906 globals = (void **)info->globals;
1908 if (enable_aot_cache)
1909 sofile = aot_cache_load_module (assembly, &aot_name);
1912 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1914 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1917 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1920 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, g_path_get_basename (assembly->image->name), MONO_SOLIB_EXT);
1921 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1923 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1931 if (!sofile && !globals) {
1932 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
1933 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1939 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1940 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1943 if (version_symbol) {
1944 /* Old file format */
1945 version = atoi (version_symbol);
1948 version = info->version;
1951 if (version != MONO_AOT_FILE_VERSION) {
1952 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
1958 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
1959 aot_data = open_aot_data (assembly, info, &handle);
1961 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
1963 blob = (guint8 *)info->blob;
1966 usable = check_usable (assembly, info, blob, &msg);
1970 if (mono_aot_only) {
1971 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
1973 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
1978 mono_dl_close (sofile);
1979 assembly->image->aot_module = NULL;
1984 align_double = MONO_ABI_ALIGNOF (double);
1985 align_int64 = MONO_ABI_ALIGNOF (gint64);
1986 g_assert (info->double_align == align_double);
1987 g_assert (info->long_align == align_int64);
1988 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
1990 amodule = g_new0 (MonoAotModule, 1);
1991 amodule->aot_name = aot_name;
1992 amodule->assembly = assembly;
1994 memcpy (&amodule->info, info, sizeof (*info));
1996 amodule->got = (void **)amodule->info.jit_got;
1997 amodule->llvm_got = (void **)amodule->info.llvm_got;
1998 amodule->globals = globals;
1999 amodule->sofile = sofile;
2000 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2001 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2002 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2004 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2005 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2006 amodule->tables [i] = aot_data + info->table_offsets [i];
2009 mono_os_mutex_init_recursive (&amodule->mutex);
2011 /* Read image table */
2013 guint32 table_len, i;
2016 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2017 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2019 table = (char *)info->image_table;
2022 table_len = *(guint32*)table;
2023 table += sizeof (guint32);
2024 amodule->image_table = g_new0 (MonoImage*, table_len);
2025 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2026 amodule->image_guids = g_new0 (char*, table_len);
2027 amodule->image_table_len = table_len;
2028 for (i = 0; i < table_len; ++i) {
2029 MonoAssemblyName *aname = &(amodule->image_names [i]);
2031 aname->name = g_strdup (table);
2032 table += strlen (table) + 1;
2033 amodule->image_guids [i] = g_strdup (table);
2034 table += strlen (table) + 1;
2036 aname->culture = g_strdup (table);
2037 table += strlen (table) + 1;
2038 memcpy (aname->public_key_token, table, strlen (table) + 1);
2039 table += strlen (table) + 1;
2041 table = (char *)ALIGN_PTR_TO (table, 8);
2042 aname->flags = *(guint32*)table;
2044 aname->major = *(guint32*)table;
2046 aname->minor = *(guint32*)table;
2048 aname->build = *(guint32*)table;
2050 aname->revision = *(guint32*)table;
2055 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2056 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2057 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2058 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2059 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2060 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2061 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2062 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2063 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2064 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2065 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2066 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2068 amodule->blob = info->blob;
2069 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2070 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2071 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2072 amodule->class_name_table = (guint16 *)info->class_name_table;
2073 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2074 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2075 amodule->got_info_offsets = info->got_info_offsets;
2076 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2078 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2079 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2080 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2081 amodule->unwind_info = (guint8 *)info->unwind_info;
2082 amodule->mem_begin = amodule->jit_code_start;
2083 amodule->mem_end = (guint8 *)info->mem_end;
2084 amodule->plt = (guint8 *)info->plt;
2085 amodule->plt_end = (guint8 *)info->plt_end;
2086 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2087 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2088 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2089 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2090 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2092 if (!strcmp (assembly->aname.name, "mscorlib"))
2093 mscorlib_aot_module = amodule;
2095 /* Compute method addresses */
2096 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2097 for (i = 0; i < amodule->info.nmethods; ++i) {
2100 if (amodule->info.llvm_get_method) {
2101 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2103 addr = get_method (i);
2106 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2107 if (!addr && amodule->info.method_addresses) {
2108 addr = get_call_table_entry (amodule->info.method_addresses, i);
2110 if (addr == amodule->info.method_addresses)
2114 amodule->methods [i] = GINT_TO_POINTER (-1);
2116 amodule->methods [i] = addr;
2119 if (make_unreadable) {
2120 #ifndef TARGET_WIN32
2122 guint8 *page_start, *page_end;
2125 addr = amodule->mem_begin;
2127 len = amodule->mem_end - amodule->mem_begin;
2129 /* Round down in both directions to avoid modifying data which is not ours */
2130 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2131 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2132 if (page_end > page_start) {
2133 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2134 g_assert (err == 0);
2139 /* Compute the boundaries of LLVM code */
2140 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2141 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2145 if (amodule->jit_code_start) {
2146 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2147 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2149 if (amodule->llvm_code_start) {
2150 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2151 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2154 g_hash_table_insert (aot_modules, assembly, amodule);
2157 if (amodule->jit_code_start)
2158 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2159 if (amodule->llvm_code_start)
2160 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2162 assembly->image->aot_module = amodule;
2164 if (mono_aot_only) {
2166 find_symbol (amodule->sofile, amodule->globals, "specific_trampolines_page", (gpointer *)&code);
2167 amodule->use_page_trampolines = code != NULL;
2168 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2172 * Register the plt region as a single trampoline so we can unwind from this code
2174 mono_tramp_info_register (
2175 mono_tramp_info_create (
2178 amodule->plt_end - amodule->plt,
2180 mono_unwind_get_cie_program ()
2186 * Since we store methoddef and classdef tokens when referring to methods/classes in
2187 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2188 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2189 * non-lazily, since we can't handle out-of-date errors later.
2190 * The cached class info also depends on the exact assemblies.
2192 #if defined(__native_client__)
2193 /* TODO: Don't 'load_image' on mscorlib due to a */
2194 /* recursive loading problem. This should be */
2195 /* removed if mscorlib is loaded from disk. */
2196 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2197 do_load_image = TRUE;
2199 do_load_image = FALSE;
2202 if (do_load_image) {
2203 for (i = 0; i < amodule->image_table_len; ++i)
2204 load_image (amodule, i, FALSE);
2207 if (amodule->out_of_date) {
2208 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.\n", assembly->image->name);
2210 g_error ("Failed to load AOT module '%s' while running in aot-only mode because a dependency cannot be found or it is out of date.\n", aot_name);
2213 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2217 * mono_aot_register_module:
2219 * This should be called by embedding code to register AOT modules statically linked
2220 * into the executable. AOT_INFO should be the value of the
2221 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2224 mono_aot_register_module (gpointer *aot_info)
2228 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2230 g_assert (info->version == MONO_AOT_FILE_VERSION);
2232 globals = (void **)info->globals;
2235 aname = (char *)info->assembly_name;
2237 /* This could be called before startup */
2241 if (!static_aot_modules)
2242 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2244 g_hash_table_insert (static_aot_modules, aname, info);
2251 mono_aot_init (void)
2253 mono_os_mutex_init_recursive (&aot_mutex);
2254 mono_os_mutex_init_recursive (&aot_page_mutex);
2255 aot_modules = g_hash_table_new (NULL, NULL);
2257 #ifndef __native_client__
2258 mono_install_assembly_load_hook (load_aot_module, NULL);
2260 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2262 if (g_getenv ("MONO_LASTAOT"))
2263 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2268 mono_aot_cleanup (void)
2270 if (aot_jit_icall_hash)
2271 g_hash_table_destroy (aot_jit_icall_hash);
2273 g_hash_table_destroy (aot_modules);
2277 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2283 info->vtable_size = decode_value (buf, &buf);
2284 if (info->vtable_size == -1)
2287 flags = decode_value (buf, &buf);
2288 info->ghcimpl = (flags >> 0) & 0x1;
2289 info->has_finalize = (flags >> 1) & 0x1;
2290 info->has_cctor = (flags >> 2) & 0x1;
2291 info->has_nested_classes = (flags >> 3) & 0x1;
2292 info->blittable = (flags >> 4) & 0x1;
2293 info->has_references = (flags >> 5) & 0x1;
2294 info->has_static_refs = (flags >> 6) & 0x1;
2295 info->no_special_static_fields = (flags >> 7) & 0x1;
2296 info->is_generic_container = (flags >> 8) & 0x1;
2298 if (info->has_cctor) {
2299 res = decode_method_ref (module, &ref, buf, &buf);
2302 info->cctor_token = ref.token;
2304 if (info->has_finalize) {
2305 res = decode_method_ref (module, &ref, buf, &buf);
2308 info->finalize_image = ref.image;
2309 info->finalize_token = ref.token;
2312 info->instance_size = decode_value (buf, &buf);
2313 info->class_size = decode_value (buf, &buf);
2314 info->packing_size = decode_value (buf, &buf);
2315 info->min_align = decode_value (buf, &buf);
2323 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2326 MonoClass *klass = vtable->klass;
2327 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2329 MonoCachedClassInfo class_info;
2334 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2337 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2340 err = decode_cached_class_info (amodule, &class_info, p, &p);
2344 for (i = 0; i < slot; ++i)
2345 decode_method_ref (amodule, &ref, p, &p);
2347 res = decode_method_ref (amodule, &ref, p, &p);
2350 if (ref.no_aot_trampoline)
2353 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2356 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2360 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2362 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2366 if (klass->rank || !amodule)
2369 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2371 err = decode_cached_class_info (amodule, res, p, &p);
2379 * mono_aot_get_class_from_name:
2381 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2382 * using a cache stored in the AOT file.
2383 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2385 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2389 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2391 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2392 guint16 *table, *entry;
2395 char full_name_buf [1024];
2397 const char *name2, *name_space2;
2399 guint32 cols [MONO_TYPEDEF_SIZE];
2400 GHashTable *nspace_table;
2402 if (!amodule || !amodule->class_name_table)
2405 amodule_lock (amodule);
2409 /* First look in the cache */
2410 if (!amodule->name_cache)
2411 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2412 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2414 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2416 amodule_unlock (amodule);
2421 table_size = amodule->class_name_table [0];
2422 table = amodule->class_name_table + 1;
2424 if (name_space [0] == '\0')
2425 full_name = g_strdup_printf ("%s", name);
2427 if (strlen (name_space) + strlen (name) < 1000) {
2428 sprintf (full_name_buf, "%s.%s", name_space, name);
2429 full_name = full_name_buf;
2431 full_name = g_strdup_printf ("%s.%s", name_space, name);
2434 hash = mono_metadata_str_hash (full_name) % table_size;
2435 if (full_name != full_name_buf)
2438 entry = &table [hash * 2];
2440 if (entry [0] != 0) {
2441 t = &image->tables [MONO_TABLE_TYPEDEF];
2444 guint32 index = entry [0];
2445 guint32 next = entry [1];
2446 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2448 name_table_accesses ++;
2450 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2452 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2453 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2455 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2457 amodule_unlock (amodule);
2458 *klass = mono_class_get_checked (image, token, &error);
2459 if (!mono_error_ok (&error))
2460 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2464 amodule_lock (amodule);
2465 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2466 if (!nspace_table) {
2467 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2468 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2470 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2471 amodule_unlock (amodule);
2477 entry = &table [next * 2];
2484 amodule_unlock (amodule);
2489 /* Compute the boundaries of the LLVM code for AMODULE. */
2491 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2494 int version, fde_count;
2497 if (amodule->info.llvm_get_method) {
2498 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2500 *code_start = (guint8 *)get_method (-1);
2501 *code_end = (guint8 *)get_method (-2);
2503 g_assert (*code_end > *code_start);
2507 g_assert (amodule->mono_eh_frame);
2509 p = amodule->mono_eh_frame;
2511 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2515 g_assert (version == 3);
2518 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2520 fde_count = *(guint32*)p;
2524 if (fde_count > 0) {
2525 *code_start = (guint8 *)amodule->methods [table [0]];
2526 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2534 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2536 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2543 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2545 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2552 * decode_llvm_mono_eh_frame:
2554 * Decode the EH information emitted by our modified LLVM compiler and construct a
2555 * MonoJitInfo structure from it.
2556 * LOCKING: Acquires the domain lock.
2559 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2560 MonoMethod *method, guint8 *code, guint32 code_len,
2561 MonoJitExceptionInfo *clauses, int num_clauses,
2562 MonoJitInfoFlags flags,
2564 int *this_reg, int *this_offset)
2566 guint8 *p, *code1, *code2;
2567 guint8 *fde, *cie, *code_start, *code_end;
2568 int version, fde_count;
2570 int i, pos, left, right;
2571 MonoJitExceptionInfo *ei;
2572 guint32 fde_len, ei_len, nested_len, nindex;
2573 gpointer *type_info;
2575 MonoLLVMFDEInfo info;
2577 if (!amodule->mono_eh_frame) {
2578 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2579 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2580 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2584 g_assert (amodule->mono_eh_frame && code);
2586 p = amodule->mono_eh_frame;
2588 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2592 g_assert (version == 3);
2594 /* func_encoding = *p; */
2596 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2598 fde_count = *(guint32*)p;
2602 /* There is +1 entry in the table */
2603 cie = p + ((fde_count + 1) * 8);
2605 /* Binary search in the table to find the entry for code */
2609 pos = (left + right) / 2;
2611 /* The table contains method index/fde offset pairs */
2612 g_assert (table [(pos * 2)] != -1);
2613 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2614 if (pos + 1 == fde_count) {
2615 code2 = amodule->llvm_code_end;
2617 g_assert (table [(pos + 1) * 2] != -1);
2618 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2623 else if (code >= code2)
2629 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2630 if (pos + 1 == fde_count) {
2631 /* The +1 entry in the table contains the length of the last method */
2632 int len = table [(pos + 1) * 2];
2633 code_end = code_start + len;
2635 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2638 code_len = code_end - code_start;
2640 g_assert (code >= code_start && code < code_end);
2642 if (is_thumb_code (amodule, code_start))
2643 /* Clear thumb flag */
2644 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2646 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2647 /* This won't overflow because there is +1 entry in the table */
2648 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2650 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2652 ei_len = info.ex_info_len;
2653 type_info = info.type_info;
2654 *this_reg = info.this_reg;
2655 *this_offset = info.this_offset;
2657 /* Count number of nested clauses */
2659 for (i = 0; i < ei_len; ++i) {
2660 /* This might be unaligned */
2661 gint32 cindex1 = read32 (type_info [i]);
2664 for (l = nesting [cindex1]; l; l = l->next)
2669 * LLVM might represent one IL region with multiple regions, so have to
2670 * allocate a new JI.
2673 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2674 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2676 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2677 /* This signals that unwind_info points to a normal cached unwind info */
2678 jinfo->from_aot = 0;
2679 jinfo->from_llvm = 1;
2681 for (i = 0; i < ei_len; ++i) {
2683 * clauses contains the original IL exception info saved by the AOT
2684 * compiler, we have to combine that with the information produced by LLVM
2686 /* The type_info entries contain IL clause indexes */
2687 int clause_index = read32 (type_info [i]);
2688 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2689 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2691 g_assert (clause_index < num_clauses);
2692 jei->flags = orig_jei->flags;
2693 jei->data.catch_class = orig_jei->data.catch_class;
2695 jei->try_start = ei [i].try_start;
2696 jei->try_end = ei [i].try_end;
2697 jei->handler_start = ei [i].handler_start;
2698 jei->clause_index = clause_index;
2700 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2701 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2702 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2703 /* Make sure we transition to thumb when a handler starts */
2704 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2708 /* See exception_cb () in mini-llvm.c as to why this is needed */
2710 for (i = 0; i < ei_len; ++i) {
2711 gint32 cindex1 = read32 (type_info [i]);
2714 for (l = nesting [cindex1]; l; l = l->next) {
2715 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2716 MonoJitExceptionInfo *nesting_ei;
2717 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2719 nesting_ei = &jinfo->clauses [nindex];
2722 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2723 nesting_ei->flags = nesting_clause->flags;
2724 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2725 nesting_ei->clause_index = nesting_cindex;
2728 g_assert (nindex == ei_len + nested_len);
2734 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2738 if (async_context) {
2739 res = mono_domain_alloc0_lock_free (domain, size);
2740 InterlockedExchangeAdd (&async_jit_info_size, size);
2742 res = mono_domain_alloc0 (domain, size);
2748 * LOCKING: Acquires the domain lock.
2749 * In async context, this is async safe.
2752 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2753 MonoMethod *method, guint8* ex_info,
2754 guint8 *code, guint32 code_len)
2756 int i, buf_len, num_clauses, len;
2758 MonoJitInfoFlags flags = JIT_INFO_NONE;
2759 guint unwind_info, eflags;
2760 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2761 gboolean from_llvm, has_gc_map;
2763 int try_holes_info_size, num_holes;
2764 int this_reg = 0, this_offset = 0;
2767 /* Load the method info from the AOT file */
2768 async = mono_thread_info_is_async_context ();
2771 eflags = decode_value (p, &p);
2772 has_generic_jit_info = (eflags & 1) != 0;
2773 has_dwarf_unwind_info = (eflags & 2) != 0;
2774 has_clauses = (eflags & 4) != 0;
2775 has_seq_points = (eflags & 8) != 0;
2776 from_llvm = (eflags & 16) != 0;
2777 has_try_block_holes = (eflags & 32) != 0;
2778 has_gc_map = (eflags & 64) != 0;
2779 has_arch_eh_jit_info = (eflags & 128) != 0;
2781 if (has_dwarf_unwind_info) {
2782 unwind_info = decode_value (p, &p);
2783 g_assert (unwind_info < (1 << 30));
2785 unwind_info = decode_value (p, &p);
2787 if (has_generic_jit_info)
2788 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2790 if (has_try_block_holes) {
2791 num_holes = decode_value (p, &p);
2792 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2793 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2795 num_holes = try_holes_info_size = 0;
2798 if (has_arch_eh_jit_info) {
2799 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2800 /* Overwrite the original code_len which includes alignment padding */
2801 code_len = decode_value (p, &p);
2804 /* Exception table */
2806 num_clauses = decode_value (p, &p);
2811 MonoJitExceptionInfo *clauses;
2818 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2821 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2822 nesting = g_new0 (GSList*, num_clauses);
2824 for (i = 0; i < num_clauses; ++i) {
2825 MonoJitExceptionInfo *ei = &clauses [i];
2827 ei->flags = decode_value (p, &p);
2829 if (decode_value (p, &p))
2830 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2832 ei->clause_index = i;
2834 ei->try_offset = decode_value (p, &p);
2835 ei->try_len = decode_value (p, &p);
2836 ei->handler_offset = decode_value (p, &p);
2837 ei->handler_len = decode_value (p, &p);
2839 /* Read the list of nesting clauses */
2841 int nesting_index = decode_value (p, &p);
2842 if (nesting_index == -1)
2844 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2848 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2851 for (i = 0; i < num_clauses; ++i)
2852 g_slist_free (nesting [i]);
2855 len = mono_jit_info_size (flags, num_clauses, num_holes);
2856 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2857 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2859 for (i = 0; i < jinfo->num_clauses; ++i) {
2860 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2862 ei->flags = decode_value (p, &p);
2864 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2865 /* Not used for catch clauses */
2866 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2867 ei->exvar_offset = decode_value (p, &p);
2869 ei->exvar_offset = decode_value (p, &p);
2872 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2873 ei->data.filter = code + decode_value (p, &p);
2875 int len = decode_value (p, &p);
2881 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2885 ei->try_start = code + decode_value (p, &p);
2886 ei->try_end = code + decode_value (p, &p);
2887 ei->handler_start = code + decode_value (p, &p);
2890 jinfo->unwind_info = unwind_info;
2891 jinfo->domain_neutral = 0;
2892 jinfo->from_aot = 1;
2895 if (has_try_block_holes) {
2896 MonoTryBlockHoleTableJitInfo *table;
2898 g_assert (jinfo->has_try_block_holes);
2900 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2903 table->num_holes = (guint16)num_holes;
2904 for (i = 0; i < num_holes; ++i) {
2905 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2906 hole->clause = decode_value (p, &p);
2907 hole->length = decode_value (p, &p);
2908 hole->offset = decode_value (p, &p);
2912 if (has_arch_eh_jit_info) {
2913 MonoArchEHJitInfo *eh_info;
2915 g_assert (jinfo->has_arch_eh_info);
2917 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
2918 eh_info->stack_size = decode_value (p, &p);
2919 eh_info->epilog_size = decode_value (p, &p);
2923 /* The rest is not needed in async mode */
2924 jinfo->async = TRUE;
2925 jinfo->d.aot_info = amodule;
2930 if (has_generic_jit_info) {
2931 MonoGenericJitInfo *gi;
2934 g_assert (jinfo->has_generic_jit_info);
2936 gi = mono_jit_info_get_generic_jit_info (jinfo);
2939 gi->nlocs = decode_value (p, &p);
2941 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
2942 for (i = 0; i < gi->nlocs; ++i) {
2943 MonoDwarfLocListEntry *entry = &gi->locations [i];
2945 entry->is_reg = decode_value (p, &p);
2946 entry->reg = decode_value (p, &p);
2948 entry->offset = decode_value (p, &p);
2950 entry->from = decode_value (p, &p);
2951 entry->to = decode_value (p, &p);
2956 gi->has_this = this_reg != -1;
2957 gi->this_reg = this_reg;
2958 gi->this_offset = this_offset;
2960 gi->has_this = decode_value (p, &p);
2961 gi->this_reg = decode_value (p, &p);
2962 gi->this_offset = decode_value (p, &p);
2966 len = decode_value (p, &p);
2970 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
2972 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2973 if (decode_value (p, &p)) {
2975 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
2977 gsctx->is_gsharedvt = TRUE;
2981 if (method && has_seq_points) {
2982 MonoSeqPointInfo *seq_points;
2984 p += mono_seq_point_info_read (&seq_points, p, FALSE);
2986 mono_domain_lock (domain);
2987 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
2988 mono_domain_unlock (domain);
2991 /* Load debug info */
2992 buf_len = decode_value (p, &p);
2994 mono_debug_add_aot_method (domain, method, code, p, buf_len);
2998 int map_size = decode_value (p, &p);
2999 /* The GC map requires 4 bytes of alignment */
3000 while ((guint64)(gsize)p % 4)
3006 if (amodule != jinfo->d.method->klass->image->aot_module) {
3009 ji_to_amodule = g_hash_table_new (NULL, NULL);
3010 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3018 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3020 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3021 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3025 * mono_aot_get_unwind_info:
3027 * Return a pointer to the DWARF unwind info belonging to JI.
3030 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3032 MonoAotModule *amodule;
3034 guint8 *code = (guint8 *)ji->code_start;
3037 amodule = (MonoAotModule *)ji->d.aot_info;
3039 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3041 g_assert (ji->from_aot);
3043 if (!amodule_contains_code_addr (amodule, code)) {
3044 /* ji belongs to a different aot module than amodule */
3046 g_assert (ji_to_amodule);
3047 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3049 g_assert (amodule_contains_code_addr (amodule, code));
3053 p = amodule->unwind_info + ji->unwind_info;
3054 *unwind_info_len = decode_value (p, &p);
3059 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3061 int mid = (lo + hi) / 2;
3068 for (i = lo; i < hi; ++i)
3069 if (array [i] > array [i + 1])
3072 /* Already sorted */
3076 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3077 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3079 if (array [mid] < array [mid + 1])
3085 for (i = lo; i <= hi; i ++) {
3086 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3087 scratch [i] = array [t_lo];
3088 scratch_indexes [i] = indexes [t_lo];
3091 scratch [i] = array [t_hi];
3092 scratch_indexes [i] = indexes [t_hi];
3096 for (i = lo; i <= hi; ++i) {
3097 array [i] = scratch [i];
3098 indexes [i] = scratch_indexes [i];
3103 msort_method_addresses (gpointer *array, int *indexes, int len)
3106 int *scratch_indexes;
3108 scratch = g_new (gpointer, len);
3109 scratch_indexes = g_new (int, len);
3110 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3112 g_free (scratch_indexes);
3116 * mono_aot_find_jit_info:
3118 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3119 * to the jit info tables.
3120 * FIXME: Large sizes in the lock free allocator
3123 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3125 int pos, left, right, code_len;
3126 int method_index, table_len;
3128 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3129 MonoMethod *method = NULL;
3131 guint8 *code, *ex_info, *p;
3135 guint8 *code1, *code2;
3142 nmethods = amodule->info.nmethods;
3144 if (domain != mono_get_root_domain ())
3148 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3151 async = mono_thread_info_is_async_context ();
3153 /* Compute a sorted table mapping code to method indexes. */
3154 if (!amodule->sorted_methods) {
3156 gpointer *methods = g_new0 (gpointer, nmethods);
3157 int *method_indexes = g_new0 (int, nmethods);
3158 int methods_len = 0;
3160 for (i = 0; i < nmethods; ++i) {
3161 /* Skip the -1 entries to speed up sorting */
3162 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3164 methods [methods_len] = amodule->methods [i];
3165 method_indexes [methods_len] = i;
3168 /* Use a merge sort as this is mostly sorted */
3169 msort_method_addresses (methods, method_indexes, methods_len);
3170 for (i = 0; i < methods_len -1; ++i)
3171 g_assert (methods [i] <= methods [i + 1]);
3172 amodule->sorted_methods_len = methods_len;
3173 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3174 /* Somebody got in before us */
3176 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3177 /* Somebody got in before us */
3178 g_free (method_indexes);
3181 /* Binary search in the sorted_methods table */
3182 methods = amodule->sorted_methods;
3183 methods_len = amodule->sorted_methods_len;
3184 code = (guint8 *)addr;
3186 right = methods_len;
3188 pos = (left + right) / 2;
3190 code1 = (guint8 *)methods [pos];
3191 if (pos + 1 == methods_len) {
3192 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3193 code2 = amodule->jit_code_end;
3195 code2 = amodule->llvm_code_end;
3197 code2 = (guint8 *)methods [pos + 1];
3202 else if (code >= code2)
3208 g_assert (addr >= methods [pos]);
3209 if (pos + 1 < methods_len)
3210 g_assert (addr < methods [pos + 1]);
3211 method_index = amodule->sorted_method_indexes [pos];
3213 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3215 JitInfoMap *table = amodule->async_jit_info_table;
3219 len = table [0].method_index;
3220 for (i = 1; i < len; ++i) {
3221 if (table [i].method_index == method_index)
3222 return table [i].jinfo;
3227 code = (guint8 *)amodule->methods [method_index];
3228 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3230 if (pos == methods_len - 1) {
3231 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3232 code_len = amodule->jit_code_end - code;
3234 code_len = amodule->llvm_code_end - code;
3236 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3239 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3241 /* Might be a wrapper/extra method */
3243 if (amodule->extra_methods) {
3244 amodule_lock (amodule);
3245 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3246 amodule_unlock (amodule);
3252 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3254 * This is hit for extra methods which are called directly, so they are
3255 * not in amodule->extra_methods.
3257 table_len = amodule->extra_method_info_offsets [0];
3258 table = amodule->extra_method_info_offsets + 1;
3265 pos = ((left + right) / 2);
3267 g_assert (pos < table_len);
3269 if (table [pos * 2] < method_index)
3271 else if (table [pos * 2] > method_index)
3277 p = amodule->blob + table [(pos * 2) + 1];
3278 method = decode_resolve_method_ref (amodule, p, &p);
3280 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3283 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3284 method = mono_get_method (image, token, NULL);
3291 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3293 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3295 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3297 /* Add it to the normal JitInfo tables */
3299 JitInfoMap *old_table, *new_table;
3303 * Use a simple inmutable table with linear search to cache async jit info entries.
3304 * This assumes that the number of entries is small.
3307 /* Copy the table, adding a new entry at the end */
3308 old_table = amodule->async_jit_info_table;
3310 len = old_table[0].method_index;
3313 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3315 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3316 new_table [0].method_index = len + 1;
3317 new_table [len].method_index = method_index;
3318 new_table [len].jinfo = jinfo;
3320 mono_memory_barrier ();
3321 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3325 mono_jit_info_table_add (domain, jinfo);
3328 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3329 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3336 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3344 case MONO_PATCH_INFO_METHOD:
3345 case MONO_PATCH_INFO_METHOD_JUMP:
3346 case MONO_PATCH_INFO_ICALL_ADDR:
3347 case MONO_PATCH_INFO_METHOD_RGCTX:
3348 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3352 res = decode_method_ref (aot_module, &ref, p, &p);
3356 if (!ref.method && !mono_aot_only && !ref.no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (ref.token) == MONO_TABLE_METHOD)) {
3357 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3358 ji->type = MONO_PATCH_INFO_ABS;
3362 ji->data.method = ref.method;
3364 ji->data.method = mono_get_method (ref.image, ref.token, NULL);
3365 g_assert (ji->data.method);
3366 mono_class_init (ji->data.method->klass);
3370 case MONO_PATCH_INFO_INTERNAL_METHOD:
3371 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3372 guint32 len = decode_value (p, &p);
3374 ji->data.name = (char*)p;
3378 case MONO_PATCH_INFO_METHODCONST:
3380 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3381 if (!ji->data.method)
3384 case MONO_PATCH_INFO_VTABLE:
3385 case MONO_PATCH_INFO_CLASS:
3386 case MONO_PATCH_INFO_IID:
3387 case MONO_PATCH_INFO_ADJUSTED_IID:
3389 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3390 if (!ji->data.klass)
3393 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3394 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3395 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p);
3396 if (!ji->data.del_tramp->klass)
3398 if (decode_value (p, &p)) {
3399 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3400 if (!ji->data.del_tramp->method)
3403 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3405 case MONO_PATCH_INFO_IMAGE:
3406 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
3407 if (!ji->data.image)
3410 case MONO_PATCH_INFO_FIELD:
3411 case MONO_PATCH_INFO_SFLDA:
3413 ji->data.field = decode_field_info (aot_module, p, &p);
3414 if (!ji->data.field)
3417 case MONO_PATCH_INFO_SWITCH:
3418 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3419 ji->data.table->table_size = decode_value (p, &p);
3420 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3421 ji->data.table->table = (MonoBasicBlock**)table;
3422 for (i = 0; i < ji->data.table->table_size; i++)
3423 table [i] = (gpointer)(gssize)decode_value (p, &p);
3425 case MONO_PATCH_INFO_R4: {
3428 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3429 val = decode_value (p, &p);
3430 *(float*)ji->data.target = *(float*)&val;
3433 case MONO_PATCH_INFO_R8: {
3437 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3439 val [0] = decode_value (p, &p);
3440 val [1] = decode_value (p, &p);
3441 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3442 *(double*)ji->data.target = *(double*)&v;
3445 case MONO_PATCH_INFO_LDSTR:
3446 image = load_image (aot_module, decode_value (p, &p), TRUE);
3449 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3451 case MONO_PATCH_INFO_RVA:
3452 case MONO_PATCH_INFO_DECLSEC:
3453 case MONO_PATCH_INFO_LDTOKEN:
3454 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3456 image = load_image (aot_module, decode_value (p, &p), TRUE);
3459 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3461 ji->data.token->has_context = decode_value (p, &p);
3462 if (ji->data.token->has_context) {
3463 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3468 case MONO_PATCH_INFO_EXC_NAME:
3469 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3470 if (!ji->data.klass)
3472 ji->data.name = ji->data.klass->name;
3474 case MONO_PATCH_INFO_METHOD_REL:
3475 ji->data.offset = decode_value (p, &p);
3477 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3478 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3479 case MONO_PATCH_INFO_GC_NURSERY_START:
3480 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3481 case MONO_PATCH_INFO_JIT_TLS_ID:
3483 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3484 ji->data.index = decode_value (p, &p);
3486 case MONO_PATCH_INFO_RGCTX_FETCH:
3487 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3489 MonoJumpInfoRgctxEntry *entry;
3490 guint32 offset, val;
3493 offset = decode_value (p, &p);
3494 val = decode_value (p, &p);
3496 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3497 p2 = aot_module->blob + offset;
3498 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3499 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3500 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3501 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3502 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3504 res = decode_patch (aot_module, mp, entry->data, p, &p);
3507 ji->data.rgctx_entry = entry;
3510 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3511 case MONO_PATCH_INFO_AOT_MODULE:
3512 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3514 case MONO_PATCH_INFO_SIGNATURE:
3515 ji->data.target = decode_signature (aot_module, p, &p);
3517 case MONO_PATCH_INFO_TLS_OFFSET:
3518 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3520 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3521 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3522 info->sig = decode_signature (aot_module, p, &p);
3523 g_assert (info->sig);
3524 info->method = decode_resolve_method_ref (aot_module, p, &p);
3525 g_assert (info->method);
3527 ji->data.target = info;
3530 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3531 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3534 info->method = decode_resolve_method_ref (aot_module, p, &p);
3535 g_assert (info->method);
3536 info->num_entries = decode_value (p, &p);
3537 info->count_entries = info->num_entries;
3538 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3539 for (i = 0; i < info->num_entries; ++i) {
3540 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3542 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3543 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3544 case MONO_PATCH_INFO_CLASS: {
3545 MonoClass *klass = decode_klass_ref (aot_module, p, &p);
3548 template_->data = &klass->byval_arg;
3551 case MONO_PATCH_INFO_FIELD:
3552 template_->data = decode_field_info (aot_module, p, &p);
3553 if (!template_->data)
3557 g_assert_not_reached ();
3561 ji->data.target = info;
3564 case MONO_PATCH_INFO_LDSTR_LIT: {
3565 int len = decode_value (p, &p);
3568 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3569 memcpy (s, p, len + 1);
3572 ji->data.target = s;
3575 case MONO_PATCH_INFO_VIRT_METHOD: {
3576 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3578 info->klass = decode_klass_ref (aot_module, p, &p);
3579 g_assert (info->klass);
3580 info->method = decode_resolve_method_ref (aot_module, p, &p);
3581 g_assert (info->method);
3583 ji->data.target = info;
3586 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3588 case MONO_PATCH_INFO_AOT_JIT_INFO:
3589 ji->data.index = decode_value (p, &p);
3592 g_warning ("unhandled type %d", ji->type);
3593 g_assert_not_reached ();
3607 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3608 * MonoJumpInfo structures allocated from MP.
3610 static MonoJumpInfo*
3611 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3613 MonoJumpInfo *patches;
3616 guint32 *got_info_offsets;
3621 got = amodule->llvm_got;
3622 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3625 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3628 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3629 for (i = 0; i < n_patches; ++i) {
3630 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3633 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3635 /* See load_method () for SFLDA */
3636 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3637 /* Already loaded */
3639 res = decode_patch (amodule, mp, ji, p, &p);
3648 static MonoJumpInfo*
3649 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3650 gboolean llvm, guint32 **got_slots,
3651 guint8 *buf, guint8 **endbuf)
3653 MonoJumpInfo *patches;
3659 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3660 for (pindex = 0; pindex < n_patches; ++pindex) {
3661 (*got_slots)[pindex] = decode_value (p, &p);
3664 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3666 g_free (*got_slots);
3676 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3679 * Jump addresses cannot be patched by the trampoline code since it
3680 * does not have access to the caller's address. Instead, we collect
3681 * the addresses of the GOT slots pointing to a method, and patch
3682 * them after the method has been compiled.
3684 MonoJitDomainInfo *info = domain_jit_info (domain);
3687 mono_domain_lock (domain);
3688 if (!info->jump_target_got_slot_hash)
3689 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3690 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3691 list = g_slist_prepend (list, got_slot);
3692 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3693 mono_domain_unlock (domain);
3699 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3700 * pointer to the native code of the method, or NULL if not found.
3701 * METHOD might not be set if the caller only has the image/token info.
3704 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3706 MonoJitInfo *jinfo = NULL;
3707 guint8 *code = NULL, *info;
3710 init_amodule_got (amodule);
3712 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3714 /* The caller cannot handle this */
3715 g_assert_not_reached ();
3719 if (domain != mono_get_root_domain ())
3720 /* Non shared AOT code can't be used in other appdomains */
3723 if (amodule->out_of_date)
3726 if (amodule->info.llvm_get_method) {
3728 * Obtain the method address by calling a generated function in the LLVM module.
3730 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3731 code = (guint8 *)get_method (method_index);
3736 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3737 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3741 method = mono_get_method (image, token, NULL);
3742 full_name = mono_method_full_name (method, TRUE);
3743 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3748 code = (guint8 *)amodule->methods [method_index];
3751 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3753 if (!amodule->methods_loaded) {
3754 amodule_lock (amodule);
3755 if (!amodule->methods_loaded) {
3758 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3759 mono_memory_barrier ();
3760 amodule->methods_loaded = loaded;
3762 amodule_unlock (amodule);
3765 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3768 if (mono_last_aot_method != -1) {
3769 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3771 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3773 method = mono_get_method (image, token, NULL);
3775 char *name = mono_method_full_name (method, TRUE);
3776 g_print ("LAST AOT METHOD: %s.\n", name);
3779 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3784 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3785 res = init_llvm_method (amodule, method_index, method, NULL, NULL);
3790 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3794 method = mono_get_method (image, token, NULL);
3796 full_name = mono_method_full_name (method, TRUE);
3799 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3801 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3805 amodule_lock (amodule);
3807 InterlockedIncrement (&mono_jit_stats.methods_aot);
3809 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3813 if (method && method->wrapper_type)
3814 g_hash_table_insert (amodule->method_to_code, method, code);
3816 amodule_unlock (amodule);
3818 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3822 method = mono_get_method (amodule->assembly->image, token, NULL);
3825 mono_profiler_method_jit (method);
3826 jinfo = mono_jit_info_table_find (domain, (char*)code);
3828 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3841 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3843 guint32 table_size, entry_size, hash;
3844 guint32 *table, *entry;
3846 static guint32 n_extra_decodes;
3848 if (!amodule || amodule->out_of_date)
3851 table_size = amodule->extra_method_table [0];
3852 hash = hash_full % table_size;
3853 table = amodule->extra_method_table + 1;
3856 entry = &table [hash * entry_size];
3863 guint32 key = entry [0];
3864 guint32 value = entry [1];
3865 guint32 next = entry [entry_size - 1];
3869 p = amodule->blob + key;
3872 amodule_lock (amodule);
3873 if (!amodule->method_ref_to_method)
3874 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
3875 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
3876 amodule_unlock (amodule);
3878 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
3880 * Can't catche runtime invoke wrappers since it would break
3881 * the check in decode_method_ref_with_target ().
3883 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
3884 amodule_lock (amodule);
3885 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
3886 amodule_unlock (amodule);
3894 /* Special case: wrappers of shared generic methods */
3895 if (m && method->wrapper_type && m->wrapper_type == m->wrapper_type &&
3896 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3897 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
3898 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
3900 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
3906 /* Methods decoded needlessly */
3908 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
3913 entry = &table [next * entry_size];
3922 add_module_cb (gpointer key, gpointer value, gpointer user_data)
3924 g_ptr_array_add ((GPtrArray*)user_data, value);
3930 * Try finding METHOD in the extra_method table in all AOT images.
3931 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
3932 * module where the method was found.
3935 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
3940 guint32 hash = mono_aot_method_hash (method);
3942 /* Try the method's module first */
3943 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
3944 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
3945 if (index != 0xffffff)
3949 * Try all other modules.
3950 * This is needed because generic instances klass->image points to the image
3951 * containing the generic definition, but the native code is generated to the
3952 * AOT image which contains the reference.
3955 /* Make a copy to avoid doing the search inside the aot lock */
3956 modules = g_ptr_array_new ();
3958 g_hash_table_foreach (aot_modules, add_module_cb, modules);
3962 for (i = 0; i < modules->len; ++i) {
3963 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
3965 if (amodule != method->klass->image->aot_module)
3966 index = find_aot_method_in_amodule (amodule, method, hash);
3967 if (index != 0xffffff) {
3968 *out_amodule = amodule;
3973 g_ptr_array_free (modules, TRUE);
3979 mono_aot_find_method_index (MonoMethod *method)
3981 MonoAotModule *out_amodule;
3982 return find_aot_method (method, &out_amodule);
3986 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
3988 MonoDomain *domain = mono_domain_get ();
3991 gboolean from_plt = method == NULL;
3992 int pindex, n_patches;
3994 MonoJitInfo *jinfo = NULL;
3995 guint8 *code, *info;
3997 code = (guint8 *)amodule->methods [method_index];
3998 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4003 klass = method->klass;
4004 decode_klass_ref (amodule, p, &p);
4006 klass = decode_klass_ref (amodule, p, &p);
4009 n_patches = decode_value (p, &p);
4012 MonoJumpInfo *patches;
4017 mp = mono_mempool_new ();
4019 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4024 got = amodule->llvm_got;
4028 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4029 if (patches == NULL) {
4030 mono_mempool_destroy (mp);
4034 for (pindex = 0; pindex < n_patches; ++pindex) {
4035 MonoJumpInfo *ji = &patches [pindex];
4039 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4040 * been initialized by load_method () for a static cctor before the cctor has
4041 * finished executing (#23242).
4043 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4044 /* In llvm-only made, we might encounter shared methods */
4045 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4049 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, &error);
4051 /* This cannot be resolved in mono_resolve_patch_target () */
4052 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4053 // FIXME: Lookup using the index
4054 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4055 ji->type = MONO_PATCH_INFO_ABS;
4056 ji->data.target = jinfo;
4058 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE);
4059 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4060 addr = mono_create_ftnptr (domain, addr);
4061 mono_memory_barrier ();
4062 got [got_slots [pindex]] = addr;
4063 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4064 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4066 ji->type = MONO_PATCH_INFO_NONE;
4071 mono_mempool_destroy (mp);
4074 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4075 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4078 mono_runtime_class_init (mono_class_vtable (domain, init_class));
4079 else if (from_plt && klass && !klass->generic_container)
4080 mono_runtime_class_init (mono_class_vtable (domain, klass));
4092 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4094 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4097 // FIXME: Handle failure
4098 res = init_llvm_method (amodule, method_index, NULL, NULL, NULL);
4103 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4105 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4108 MonoGenericContext *context;
4112 g_assert (this_obj);
4113 klass = this_obj->vtable->klass;
4115 amodule_lock (amodule);
4116 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4117 amodule_unlock (amodule);
4120 context = mono_method_get_context (method);
4123 res = init_llvm_method (amodule, method_index, NULL, klass, context);
4128 mono_aot_init_gshared_method_rgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4130 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4132 MonoGenericContext context = { NULL, NULL };
4133 MonoClass *klass = rgctx->class_vtable->klass;
4135 if (klass->generic_class)
4136 context.class_inst = klass->generic_class->context.class_inst;
4137 else if (klass->generic_container)
4138 context.class_inst = klass->generic_container->context.class_inst;
4139 context.method_inst = rgctx->method_inst;
4141 res = init_llvm_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4146 * mono_aot_get_method:
4148 * Return a pointer to the AOTed native code for METHOD if it can be found,
4150 * On platforms with function pointers, this doesn't return a function pointer.
4153 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4155 MonoClass *klass = method->klass;
4156 MonoMethod *orig_method = method;
4157 guint32 method_index;
4158 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4160 gboolean cache_result = FALSE;
4162 if (domain != mono_get_root_domain ())
4163 /* Non shared AOT code can't be used in other appdomains */
4166 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4167 /* This cannot be AOTed during startup, so do it now */
4168 if (!mscorlib_aot_loaded) {
4169 mscorlib_aot_loaded = TRUE;
4170 load_aot_module (klass->image->assembly, NULL);
4171 amodule = (MonoAotModule *)klass->image->aot_module;
4178 if (amodule->out_of_date)
4181 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4182 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4183 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4184 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4188 * Use the original method instead of its invoke-with-check wrapper.
4189 * This is not a problem when using full-aot, since it doesn't support
4192 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4193 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4195 g_assert (klass->inited);
4197 /* Find method index */
4198 method_index = 0xffffff;
4199 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4200 MonoMethod *orig_method = method;
4202 * For generic methods, we store the fully shared instance in place of the
4205 method = mono_method_get_declaring_generic_method (method);
4206 method_index = mono_metadata_token_index (method->token) - 1;
4208 if (mono_llvm_only) {
4209 /* Needed by mono_aot_init_gshared_method_this () */
4210 /* orig_method is a random instance but it is enough to make init_llvm_method () work */
4211 amodule_lock (amodule);
4212 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4213 amodule_unlock (amodule);
4215 } else if (method->is_inflated || !method->token) {
4216 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4217 amodule_lock (amodule);
4218 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4219 amodule_unlock (amodule);
4223 cache_result = TRUE;
4224 method_index = find_aot_method (method, &amodule);
4226 * Special case the ICollection<T> wrappers for arrays, as they cannot
4227 * be statically enumerated, and each wrapper ends up calling the same
4230 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4231 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4233 code = (guint8 *)mono_aot_get_method (domain, m);
4239 * Special case Array.GetGenericValueImpl which is a generic icall.
4240 * Generic sharing currently can't handle it, but the icall returns data using
4241 * an out parameter, so the managed-to-native wrappers can share the same code.
4243 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4246 MonoGenericContext ctx;
4247 MonoType *args [16];
4249 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4250 /* Avoid recursion */
4253 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4256 memset (&ctx, 0, sizeof (ctx));
4257 args [0] = &mono_defaults.object_class->byval_arg;
4258 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4260 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4261 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4264 * Get the code for the <object> instantiation which should be emitted into
4265 * the mscorlib aot image by the AOT compiler.
4267 code = (guint8 *)mono_aot_get_method (domain, m);
4272 /* Same for CompareExchange<T> and Exchange<T> */
4273 /* Same for Volatile.Read<T>/Write<T> */
4274 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4275 ((!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Interlocked") && (!strcmp (method->name, "CompareExchange") || !strcmp (method->name, "Exchange")) && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature (method)->params [1]))) ||
4276 (!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Volatile") && (!strcmp (method->name, "Read") && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature (method)->ret)))) ||
4277 (!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Volatile") && (!strcmp (method->name, "Write") && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature (method)->params [1])))))) {
4280 MonoGenericContext ctx;
4281 MonoType *args [16];
4282 gpointer iter = NULL;
4284 while ((m = mono_class_get_methods (method->klass, &iter))) {
4285 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4290 memset (&ctx, 0, sizeof (ctx));
4291 args [0] = &mono_defaults.object_class->byval_arg;
4292 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4294 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4295 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4297 /* Avoid recursion */
4302 * Get the code for the <object> instantiation which should be emitted into
4303 * the mscorlib aot image by the AOT compiler.
4305 code = (guint8 *)mono_aot_get_method (domain, m);
4310 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4311 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4312 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4314 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4315 MonoMethod *array_method = info->d.array_accessor.method;
4316 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4317 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4318 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4321 m = mono_marshal_get_array_accessor_wrapper (m);
4323 code = (guint8 *)mono_aot_get_method (domain, m);
4331 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4332 /* Partial sharing */
4335 shared = mini_get_shared_method (method);
4336 method_index = find_aot_method (shared, &amodule);
4337 if (method_index != 0xffffff)
4341 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4343 /* Use the all-vt shared method since this is what was AOTed */
4344 method_index = find_aot_method (mini_get_shared_method_full (method, TRUE, TRUE), &amodule);
4345 if (method_index != 0xffffff)
4346 method = mini_get_shared_method_full (method, TRUE, FALSE);
4349 if (method_index == 0xffffff) {
4350 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4353 full_name = mono_method_full_name (method, TRUE);
4354 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4360 if (method_index == 0xffffff)
4363 /* Needed by find_jit_info */
4364 amodule_lock (amodule);
4365 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4366 amodule_unlock (amodule);
4369 method_index = mono_metadata_token_index (method->token) - 1;
4372 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index);
4373 if (code && cache_result) {
4374 amodule_lock (amodule);
4375 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4376 amodule_unlock (amodule);
4382 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4386 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4388 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4394 method_index = mono_metadata_token_index (token) - 1;
4396 return load_method (domain, aot_module, image, NULL, token, method_index);
4402 } IsGotEntryUserData;
4405 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4407 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4408 MonoAotModule *aot_module = (MonoAotModule*)value;
4410 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4415 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4417 IsGotEntryUserData user_data;
4422 user_data.addr = addr;
4423 user_data.res = FALSE;
4425 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4428 return user_data.res;
4433 MonoAotModule *module;
4434 } FindAotModuleUserData;
4437 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4439 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4440 MonoAotModule *aot_module = (MonoAotModule*)value;
4442 if (amodule_contains_code_addr (aot_module, data->addr))
4443 data->module = aot_module;
4446 static inline MonoAotModule*
4447 find_aot_module (guint8 *code)
4449 FindAotModuleUserData user_data;
4454 /* Reading these need no locking */
4455 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4458 user_data.addr = code;
4459 user_data.module = NULL;
4462 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4465 return user_data.module;
4469 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4471 MonoAotModule *amodule;
4474 * Since AOT code is only used in the root domain,
4475 * mono_domain_get () != mono_get_root_domain () means the calling method
4476 * is AppDomain:InvokeInDomain, so this is the same check as in
4477 * mono_method_same_domain () but without loading the metadata for the method.
4479 if (mono_domain_get () == mono_get_root_domain ()) {
4481 amodule = find_aot_module (code);
4485 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4490 * mono_aot_plt_resolve:
4492 * This function is called by the entries in the PLT to resolve the actual method that
4493 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4494 * Returns NULL if the something cannot be loaded.
4497 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
4499 #ifdef MONO_ARCH_AOT_SUPPORTED
4500 guint8 *p, *target, *plt_entry;
4502 MonoAotModule *module = (MonoAotModule*)aot_module;
4503 gboolean res, no_ftnptr = FALSE;
4505 gboolean using_gsharedvt = FALSE;
4507 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4509 p = &module->blob [plt_info_offset];
4511 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4513 mp = mono_mempool_new ();
4514 res = decode_patch (module, mp, &ji, p, &p);
4517 mono_mempool_destroy (mp);
4521 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4522 using_gsharedvt = TRUE;
4526 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4527 * it would create a trampoline, and we don't need that.
4528 * We could do this only if the method does not need the special handling
4529 * in mono_magic_trampoline ().
4531 if (mono_aot_only && ji.type == MONO_PATCH_INFO_METHOD && !ji.data.method->is_generic && !mono_method_check_context_used (ji.data.method) && !(ji.data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) &&
4532 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4533 target = (guint8 *)mono_jit_compile_method (ji.data.method);
4536 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
4540 * The trampoline expects us to return a function descriptor on platforms which use
4541 * it, but resolve_patch_target returns a direct function pointer for some type of
4542 * patches, so have to translate between the two.
4543 * FIXME: Clean this up, but how ?
4545 if (ji.type == MONO_PATCH_INFO_ABS || ji.type == MONO_PATCH_INFO_INTERNAL_METHOD || ji.type == MONO_PATCH_INFO_ICALL_ADDR || ji.type == MONO_PATCH_INFO_JIT_ICALL_ADDR || ji.type == MONO_PATCH_INFO_RGCTX_FETCH) {
4546 /* These should already have a function descriptor */
4547 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4548 /* Our function descriptors have a 0 environment, gcc created ones don't */
4549 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4550 g_assert (((gpointer*)target) [2] == 0);
4553 } else if (!no_ftnptr) {
4554 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4555 g_assert (((gpointer*)target) [2] != 0);
4557 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4560 mono_mempool_destroy (mp);
4562 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4563 plt_entry = mono_aot_get_plt_entry (code);
4564 g_assert (plt_entry);
4565 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4569 g_assert_not_reached ();
4577 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4578 * method in the module is loaded to avoid committing memory by writing to it.
4579 * LOCKING: Assumes the AMODULE lock is held.
4582 init_plt (MonoAotModule *amodule)
4587 if (amodule->plt_inited)
4590 if (amodule->info.plt_size <= 1) {
4591 amodule->plt_inited = TRUE;
4595 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4598 * Initialize the PLT entries in the GOT to point to the default targets.
4601 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4602 for (i = 1; i < amodule->info.plt_size; ++i)
4603 /* All the default entries point to the AOT trampoline */
4604 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4606 amodule->plt_inited = TRUE;
4610 * mono_aot_get_plt_entry:
4612 * Return the address of the PLT entry called by the code at CODE if exists.
4615 mono_aot_get_plt_entry (guint8 *code)
4617 MonoAotModule *amodule = find_aot_module (code);
4618 guint8 *target = NULL;
4624 if (is_thumb_code (amodule, code))
4625 return mono_arm_get_thumb_plt_entry (code);
4628 #ifdef MONO_ARCH_AOT_SUPPORTED
4629 target = mono_arch_get_call_target (code);
4631 g_assert_not_reached ();
4635 while (target != NULL) {
4636 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4639 // Add 4 since mono_arch_get_call_target assumes we're passing
4640 // the instruction after the actual branch instruction.
4641 target = mono_arch_get_call_target (target + 4);
4646 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4654 * mono_aot_get_plt_info_offset:
4656 * Return the PLT info offset belonging to the plt entry called by CODE.
4659 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4661 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4663 g_assert (plt_entry);
4665 /* The offset is embedded inside the code after the plt entry */
4666 #ifdef MONO_ARCH_AOT_SUPPORTED
4667 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4669 g_assert_not_reached ();
4675 mono_create_ftnptr_malloc (guint8 *code)
4677 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4678 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4680 ftnptr->code = code;
4691 * mono_aot_register_jit_icall:
4693 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4694 * be called from mono_arch_init () during startup.
4697 mono_aot_register_jit_icall (const char *name, gpointer addr)
4699 /* No need for locking */
4700 if (!aot_jit_icall_hash)
4701 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4702 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4706 * load_function_full:
4708 * Load the function named NAME from the aot image.
4711 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4715 int n_patches, pindex;
4718 guint32 info_offset;
4722 symbol = g_strdup_printf ("%s", name);
4723 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
4726 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4728 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4732 symbol = g_strdup_printf ("%s_p", name);
4733 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
4736 /* Nothing to patch */
4739 info_offset = *(guint32*)p;
4741 MonoTrampInfo *tinfo;
4742 guint32 code_size, uw_info_len, uw_offset;
4744 /* Construct a MonoTrampInfo from the data in the AOT image */
4746 p += sizeof (guint32);
4747 code_size = *(guint32*)p;
4748 p += sizeof (guint32);
4749 uw_offset = *(guint32*)p;
4750 uw_info = amodule->unwind_info + uw_offset;
4751 uw_info_len = decode_value (uw_info, &uw_info);
4753 tinfo = g_new0 (MonoTrampInfo, 1);
4754 tinfo->code = (guint8 *)code;
4755 tinfo->code_size = code_size;
4756 tinfo->uw_info = uw_info;
4757 tinfo->uw_info_len = uw_info_len;
4762 p = amodule->blob + info_offset;
4764 /* Similar to mono_aot_load_method () */
4766 n_patches = decode_value (p, &p);
4769 MonoJumpInfo *patches;
4772 mp = mono_mempool_new ();
4774 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4777 for (pindex = 0; pindex < n_patches; ++pindex) {
4778 MonoJumpInfo *ji = &patches [pindex];
4781 if (amodule->got [got_slots [pindex]])
4785 * When this code is executed, the runtime may not be initalized yet, so
4786 * resolve the patch info by hand.
4788 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4789 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4790 target = mono_get_lmf_addr;
4791 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
4792 target = mono_thread_force_interruption_checkpoint;
4793 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
4794 target = mono_exception_from_token;
4795 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
4796 target = mono_get_throw_exception ();
4797 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
4798 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
4799 target = (gpointer)mono_get_trampoline_func (tramp_type2);
4800 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
4801 /* atoll is needed because the the offset is unsigned */
4805 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
4806 g_assert (res == 1);
4807 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4808 target = mono_create_ftnptr_malloc ((guint8 *)target);
4809 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
4810 target = mono_thread_get_and_clear_pending_exception;
4811 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
4812 target = debugger_agent_single_step_from_context;
4813 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
4814 target = debugger_agent_breakpoint_from_context;
4815 } else if (strstr (ji->data.name, "generic_trampoline_")) {
4816 target = mono_aot_get_trampoline (ji->data.name);
4817 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
4818 /* Registered by mono_arch_init () */
4819 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
4821 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
4822 g_assert_not_reached ();
4826 /* Hopefully the code doesn't have patches which need method or
4829 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE);
4833 amodule->got [got_slots [pindex]] = target;
4838 mono_mempool_destroy (mp);
4845 load_function (MonoAotModule *amodule, const char *name)
4847 return load_function_full (amodule, name, NULL);
4850 static MonoAotModule*
4851 get_mscorlib_aot_module (void)
4854 MonoAotModule *amodule;
4856 image = mono_defaults.corlib;
4858 amodule = (MonoAotModule *)image->aot_module;
4860 amodule = mscorlib_aot_module;
4866 no_trampolines (void)
4868 g_assert_not_reached ();
4872 * Return the trampoline identified by NAME from the mscorlib AOT file.
4873 * On ppc64, this returns a function descriptor.
4876 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
4878 MonoAotModule *amodule = get_mscorlib_aot_module ();
4880 if (mono_llvm_only) {
4882 return no_trampolines;
4885 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
4889 mono_aot_get_trampoline (const char *name)
4891 MonoTrampInfo *out_tinfo;
4894 code = mono_aot_get_trampoline_full (name, &out_tinfo);
4895 mono_tramp_info_register (out_tinfo, NULL);
4901 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
4903 gpointer symbol_addr;
4904 guint32 uw_offset, uw_info_len;
4907 find_symbol (amodule->sofile, amodule->globals, symbol_name, &symbol_addr);
4912 uw_offset = *(guint32*)symbol_addr;
4913 uw_info = amodule->unwind_info + uw_offset;
4914 uw_info_len = decode_value (uw_info, &uw_info);
4916 info->uw_info = uw_info;
4917 info->uw_info_len = uw_info_len;
4919 /* If successful return the address of the following data */
4920 return (guint32*)symbol_addr + 1;
4924 #include <mach/mach.h>
4926 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
4929 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
4931 char symbol_name [128];
4933 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
4934 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4935 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
4936 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4937 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
4938 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4939 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
4940 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4942 g_assert_not_reached ();
4944 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
4947 static unsigned char*
4948 get_new_trampoline_from_page (int tramp_type)
4950 MonoAotModule *amodule;
4952 TrampolinePage *page;
4955 vm_address_t addr, taddr;
4957 vm_prot_t prot, max_prot;
4958 int psize, specific_trampoline_size;
4959 unsigned char *code;
4961 specific_trampoline_size = 2 * sizeof (gpointer);
4963 mono_aot_page_lock ();
4964 page = trampoline_pages [tramp_type];
4965 if (page && page->trampolines < page->trampolines_end) {
4966 code = page->trampolines;
4967 page->trampolines += specific_trampoline_size;
4968 mono_aot_page_unlock ();
4971 mono_aot_page_unlock ();
4972 /* the trampoline template page is in the mscorlib module */
4973 image = mono_defaults.corlib;
4976 psize = MONO_AOT_TRAMP_PAGE_SIZE;
4978 amodule = image->aot_module;
4981 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
4982 tpage = load_function (amodule, "specific_trampolines_page");
4983 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
4984 tpage = load_function (amodule, "rgctx_trampolines_page");
4985 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
4986 tpage = load_function (amodule, "imt_trampolines_page");
4987 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
4988 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
4990 g_error ("Incorrect tramp type for trampolines page");
4992 /*g_warning ("loaded trampolines page at %x", tpage);*/
4994 /* avoid the unlikely case of looping forever */
4997 while (page == NULL && count-- > 0) {
4998 MonoTrampInfo *gen_info, *sp_info;
5001 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5002 * while the second will contain the trampolines.
5004 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5005 if (ret != KERN_SUCCESS) {
5006 g_error ("Cannot allocate memory for trampolines: %d", ret);
5009 /*g_warning ("allocated trampoline double page at %x", addr);*/
5010 /* replace the second page with a remapped trampoline page */
5011 taddr = addr + psize;
5012 vm_deallocate (mach_task_self (), taddr, psize);
5013 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5014 if (ret != KERN_SUCCESS) {
5015 /* someone else got the page, try again */
5016 vm_deallocate (mach_task_self (), addr, psize);
5019 /*g_warning ("remapped trampoline page at %x", taddr);*/
5021 mono_aot_page_lock ();
5022 page = trampoline_pages [tramp_type];
5023 /* some other thread already allocated, so use that to avoid wasting memory */
5024 if (page && page->trampolines < page->trampolines_end) {
5025 code = page->trampolines;
5026 page->trampolines += specific_trampoline_size;
5027 mono_aot_page_unlock ();
5028 vm_deallocate (mach_task_self (), addr, psize);
5029 vm_deallocate (mach_task_self (), taddr, psize);
5032 page = (TrampolinePage*)addr;
5033 page->next = trampoline_pages [tramp_type];
5034 trampoline_pages [tramp_type] = page;
5035 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5036 page->trampolines_end = (void*)(taddr + psize - 64);
5037 code = page->trampolines;
5038 page->trampolines += specific_trampoline_size;
5039 mono_aot_page_unlock ();
5041 /* Register the generic part at the beggining of the trampoline page */
5042 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5043 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5044 mono_tramp_info_register (gen_info, NULL);
5047 * Registering each specific trampoline produces a lot of
5048 * MonoJitInfo structures. Jump trampolines are also registered
5051 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5052 /* Register the rest of the page as a single trampoline */
5053 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5054 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5055 mono_tramp_info_register (sp_info, NULL);
5059 g_error ("Cannot allocate more trampoline pages: %d", ret);
5064 static unsigned char*
5065 get_new_trampoline_from_page (int tramp_type)
5067 g_error ("Page trampolines not supported.");
5074 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5079 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5081 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5084 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5090 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5095 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5097 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5100 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5106 get_new_imt_trampoline_from_page (gpointer arg)
5111 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5113 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5115 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5121 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5126 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5128 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5131 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5135 /* Return a given kind of trampoline */
5136 /* FIXME set unwind info for these trampolines */
5138 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5141 MonoAotModule *amodule = get_mscorlib_aot_module ();
5142 int index, tramp_size;
5144 /* Currently, we keep all trampolines in the mscorlib AOT image */
5145 image = mono_defaults.corlib;
5147 *out_amodule = amodule;
5152 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5154 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5156 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5157 g_error ("Ran out of trampolines of type %d in '%s' (%d)%s\n",
5158 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5160 index = amodule->trampoline_index [tramp_type] ++;
5164 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5166 tramp_size = amodule->info.trampoline_size [tramp_type];
5169 *out_tramp_size = tramp_size;
5171 return amodule->trampolines [tramp_type] + (index * tramp_size);
5175 no_specific_trampoline (void)
5177 g_assert_not_reached ();
5181 * Return a specific trampoline from the AOT file.
5184 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5186 MonoAotModule *amodule;
5187 guint32 got_offset, tramp_size;
5188 guint8 *code, *tramp;
5189 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5190 static gboolean inited;
5191 static guint32 num_trampolines;
5193 if (mono_llvm_only) {
5195 return no_specific_trampoline;
5202 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5211 if (!generic_trampolines [tramp_type]) {
5214 symbol = mono_get_generic_trampoline_name (tramp_type);
5215 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5219 tramp = (guint8 *)generic_trampolines [tramp_type];
5222 if (USE_PAGE_TRAMPOLINES) {
5223 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5226 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5228 amodule->got [got_offset] = tramp;
5229 amodule->got [got_offset + 1] = arg1;
5233 *code_len = tramp_size;
5239 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5241 MonoAotModule *amodule;
5245 if (USE_PAGE_TRAMPOLINES) {
5246 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5248 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5250 amodule->got [got_offset] = ctx;
5251 amodule->got [got_offset + 1] = addr;
5254 /* The caller expects an ftnptr */
5255 return mono_create_ftnptr (mono_domain_get (), code);
5259 mono_aot_get_unbox_trampoline (MonoMethod *method)
5261 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5262 MonoAotModule *amodule;
5264 guint32 *ut, *ut_end, *entry;
5265 int low, high, entry_index = 0;
5266 gpointer symbol_addr;
5267 MonoTrampInfo *tinfo;
5269 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5270 method_index = find_aot_method (method, &amodule);
5271 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5272 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5273 method_index = find_aot_method (shared, &amodule);
5275 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5276 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5277 method_index = find_aot_method (shared, &amodule);
5279 g_assert (method_index != 0xffffff);
5281 amodule = (MonoAotModule *)method->klass->image->aot_module;
5285 if (amodule->info.llvm_get_unbox_tramp) {
5286 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5287 code = get_tramp (method_index);
5293 ut = amodule->unbox_trampolines;
5294 ut_end = amodule->unbox_trampolines_end;
5296 /* Do a binary search in the sorted table */
5299 high = (ut_end - ut);
5300 while (low < high) {
5301 entry_index = (low + high) / 2;
5302 entry = &ut [entry_index];
5303 if (entry [0] < method_index) {
5304 low = entry_index + 1;
5305 } else if (entry [0] > method_index) {
5312 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5315 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5317 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5319 mono_tramp_info_free (tinfo);
5323 tinfo->code_size = *(guint32*)symbol_addr;
5324 mono_tramp_info_register (tinfo, NULL);
5326 /* The caller expects an ftnptr */
5327 return mono_create_ftnptr (mono_domain_get (), code);
5331 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5335 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5336 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5337 static int count = 0;
5340 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5341 static gpointer addr;
5345 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5348 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5349 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5350 info [0] = GUINT_TO_POINTER (slot);
5351 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5352 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5353 return mono_create_ftnptr (mono_domain_get (), code);
5356 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5357 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5359 /* The caller expects an ftnptr */
5360 return mono_create_ftnptr (mono_domain_get (), code);
5366 g_assert_not_reached ();
5370 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5375 int i, index, real_count;
5376 MonoAotModule *amodule;
5379 return no_imt_thunk;
5382 for (i = 0; i < count; ++i) {
5383 MonoIMTCheckItem *item = imt_entries [i];
5385 if (item->is_equals)
5389 /* Save the entries into an array */
5390 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5392 for (i = 0; i < count; ++i) {
5393 MonoIMTCheckItem *item = imt_entries [i];
5395 if (!item->is_equals)
5398 g_assert (item->key);
5400 buf [(index * 2)] = item->key;
5401 if (item->has_target_code) {
5402 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5403 *p = item->value.target_code;
5404 buf [(index * 2) + 1] = p;
5406 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5410 buf [(index * 2)] = NULL;
5411 buf [(index * 2) + 1] = fail_tramp;
5413 if (USE_PAGE_TRAMPOLINES) {
5414 code = get_new_imt_trampoline_from_page (buf);
5416 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5418 amodule->got [got_offset] = buf;
5425 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5427 MonoAotModule *amodule;
5431 if (USE_PAGE_TRAMPOLINES) {
5432 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5434 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5436 amodule->got [got_offset] = arg;
5437 amodule->got [got_offset + 1] = addr;
5440 /* The caller expects an ftnptr */
5441 return mono_create_ftnptr (mono_domain_get (), code);
5445 * mono_aot_set_make_unreadable:
5447 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5448 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5451 mono_aot_set_make_unreadable (gboolean unreadable)
5455 make_unreadable = unreadable;
5457 if (make_unreadable && !inited) {
5458 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5463 MonoAotModule *module;
5468 find_map (gpointer key, gpointer value, gpointer user_data)
5470 MonoAotModule *module = (MonoAotModule*)value;
5471 FindMapUserData *data = (FindMapUserData*)user_data;
5474 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5475 data->module = module;
5478 static MonoAotModule*
5479 find_module_for_addr (void *ptr)
5481 FindMapUserData data;
5483 if (!make_unreadable)
5487 data.ptr = (guint8*)ptr;
5490 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5497 * mono_aot_is_pagefault:
5499 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5500 * within memory allocated by this module.
5503 mono_aot_is_pagefault (void *ptr)
5505 if (!make_unreadable)
5509 * Not signal safe, but SIGSEGV's are synchronous, and
5510 * this is only turned on by a MONO_DEBUG option.
5512 return find_module_for_addr (ptr) != NULL;
5516 * mono_aot_handle_pagefault:
5518 * Handle a pagefault caused by an unreadable page by making it readable again.
5521 mono_aot_handle_pagefault (void *ptr)
5523 #ifndef PLATFORM_WIN32
5524 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5528 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5529 g_assert (res == 0);
5540 mono_aot_init (void)
5545 mono_aot_cleanup (void)
5550 mono_aot_find_method_index (MonoMethod *method)
5552 g_assert_not_reached ();
5557 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5562 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5567 mono_aot_init_gshared_method_rgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5572 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5578 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5584 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5590 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5596 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5602 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5608 mono_aot_get_plt_entry (guint8 *code)
5614 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
5620 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5625 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5631 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5633 g_assert_not_reached ();
5639 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5641 g_assert_not_reached ();
5646 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5648 g_assert_not_reached ();
5653 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5655 g_assert_not_reached ();
5660 mono_aot_get_trampoline (const char *name)
5662 g_assert_not_reached ();
5667 mono_aot_get_unbox_trampoline (MonoMethod *method)
5669 g_assert_not_reached ();
5674 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5676 g_assert_not_reached ();
5681 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5683 g_assert_not_reached ();
5688 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5690 g_assert_not_reached ();
5695 mono_aot_set_make_unreadable (gboolean unreadable)
5700 mono_aot_is_pagefault (void *ptr)
5706 mono_aot_handle_pagefault (void *ptr)
5711 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5713 g_assert_not_reached ();
5718 mono_aot_register_jit_icall (const char *name, gpointer addr)