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"
64 #include "jit-icalls.h"
69 #define ENABLE_AOT_CACHE
72 /* Number of got entries shared between the JIT and LLVM GOT */
73 #define N_COMMON_GOT_ENTRIES 10
75 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
76 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
77 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
84 typedef struct MonoAotModule {
86 /* Pointer to the Global Offset Table */
90 GHashTable *name_cache;
91 GHashTable *extra_methods;
92 /* Maps methods to their code */
93 GHashTable *method_to_code;
94 /* Maps pointers into the method info to the methods themselves */
95 GHashTable *method_ref_to_method;
96 MonoAssemblyName *image_names;
98 MonoAssembly *assembly;
99 MonoImage **image_table;
100 guint32 image_table_len;
101 gboolean out_of_date;
103 gboolean got_initializing;
106 guint8 *jit_code_start;
107 guint8 *jit_code_end;
108 guint8 *llvm_code_start;
109 guint8 *llvm_code_end;
113 /* Maps method indexes to their code */
115 /* Sorted array of method addresses */
116 gpointer *sorted_methods;
117 /* Method indexes for each method in sorted_methods */
118 int *sorted_method_indexes;
119 /* The length of the two tables above */
120 int sorted_methods_len;
121 guint32 *method_info_offsets;
122 guint32 *ex_info_offsets;
123 guint32 *class_info_offsets;
124 guint32 *got_info_offsets;
125 guint32 *llvm_got_info_offsets;
126 guint32 *methods_loaded;
127 guint16 *class_name_table;
128 guint32 *extra_method_table;
129 guint32 *extra_method_info_offsets;
130 guint32 *unbox_trampolines;
131 guint32 *unbox_trampolines_end;
132 guint32 *unbox_trampoline_addresses;
135 /* Points to the mono EH data created by LLVM */
136 guint8 *mono_eh_frame;
138 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
139 gpointer tables [MONO_AOT_TABLE_NUM];
140 /* Points to the trampolines */
141 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
142 /* The first unused trampoline of each kind */
143 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
145 gboolean use_page_trampolines;
147 MonoAotFileInfo info;
152 JitInfoMap *async_jit_info_table;
158 unsigned char *trampolines;
159 unsigned char *trampolines_end;
162 static GHashTable *aot_modules;
163 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
164 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
165 static mono_mutex_t aot_mutex;
168 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
169 * AOT modules registered by mono_aot_register_module ().
171 static GHashTable *static_aot_modules;
174 * Maps MonoJitInfo* to the aot module they belong to, this can be different
175 * from ji->method->klass->image's aot module for generic instances.
177 static GHashTable *ji_to_amodule;
180 * Whenever to AOT compile loaded assemblies on demand and store them in
183 static gboolean enable_aot_cache = FALSE;
185 static gboolean mscorlib_aot_loaded;
188 static gint32 mono_last_aot_method = -1;
190 static gboolean make_unreadable = FALSE;
191 static guint32 name_table_accesses = 0;
192 static guint32 n_pagefaults = 0;
194 /* Used to speed-up find_aot_module () */
195 static gsize aot_code_low_addr = (gssize)-1;
196 static gsize aot_code_high_addr = 0;
199 static gint32 async_jit_info_size;
201 static GHashTable *aot_jit_icall_hash;
204 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
206 #define USE_PAGE_TRAMPOLINES 0
209 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
210 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
211 static mono_mutex_t aot_page_mutex;
213 static MonoAotModule *mscorlib_aot_module;
215 /* Embedding API hooks to load the AOT data for AOT images compiled with MONO_AOT_FILE_FLAG_SEPARATE_DATA */
216 static MonoLoadAotDataFunc aot_data_load_func;
217 static MonoFreeAotDataFunc aot_data_free_func;
218 static gpointer aot_data_func_user_data;
221 init_plt (MonoAotModule *info);
224 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
227 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context);
230 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
233 amodule_lock (MonoAotModule *amodule)
235 mono_os_mutex_lock (&amodule->mutex);
239 amodule_unlock (MonoAotModule *amodule)
241 mono_os_mutex_unlock (&amodule->mutex);
247 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
248 * found, and sets the loader error if SET_ERROR is TRUE.
251 load_image (MonoAotModule *amodule, int index, gboolean set_error)
253 MonoAssembly *assembly;
254 MonoImageOpenStatus status;
256 g_assert (index < amodule->image_table_len);
258 if (amodule->image_table [index])
259 return amodule->image_table [index];
260 if (amodule->out_of_date)
263 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
265 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);
266 amodule->out_of_date = TRUE;
269 char *full_name = mono_stringify_assembly_name (&amodule->image_names [index]);
270 mono_loader_set_error_assembly_load (full_name, FALSE);
276 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
277 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);
278 amodule->out_of_date = TRUE;
282 amodule->image_table [index] = assembly->image;
283 return assembly->image;
287 decode_value (guint8 *ptr, guint8 **rptr)
292 if ((b & 0x80) == 0){
295 } else if ((b & 0x40) == 0){
296 len = ((b & 0x3f) << 8 | ptr [1]);
298 } else if (b != 0xff) {
299 len = ((b & 0x1f) << 24) |
306 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
312 //printf ("DECODE: %d.\n", len);
317 * mono_aot_get_offset:
319 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
323 mono_aot_get_offset (guint32 *table, int index)
325 int i, group, ngroups, index_entry_size;
326 int start_offset, offset, group_size;
327 guint8 *data_start, *p;
328 guint32 *index32 = NULL;
329 guint16 *index16 = NULL;
331 /* noffsets = table [0]; */
332 group_size = table [1];
334 index_entry_size = table [3];
335 group = index / group_size;
337 if (index_entry_size == 2) {
338 index16 = (guint16*)&table [4];
339 data_start = (guint8*)&index16 [ngroups];
340 p = data_start + index16 [group];
342 index32 = (guint32*)&table [4];
343 data_start = (guint8*)&index32 [ngroups];
344 p = data_start + index32 [group];
347 /* offset will contain the value of offsets [group * group_size] */
348 offset = start_offset = decode_value (p, &p);
349 for (i = group * group_size + 1; i <= index; ++i) {
350 offset += decode_value (p, &p);
353 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
359 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
362 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
365 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
367 static MonoGenericInst*
368 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
371 MonoType **type_argv;
372 MonoGenericInst *inst;
375 type_argc = decode_value (p, &p);
376 type_argv = g_new0 (MonoType*, type_argc);
378 for (i = 0; i < type_argc; ++i) {
379 MonoClass *pclass = decode_klass_ref (module, p, &p);
384 type_argv [i] = &pclass->byval_arg;
387 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
396 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
403 argc = decode_value (p, &p);
406 ctx->class_inst = decode_generic_inst (module, p, &p);
407 if (!ctx->class_inst)
411 argc = decode_value (p, &p);
414 ctx->method_inst = decode_generic_inst (module, p, &p);
415 if (!ctx->method_inst)
424 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
428 MonoClass *klass = NULL, *eklass;
429 guint32 token, rank, idx;
433 reftype = decode_value (p, &p);
440 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
441 idx = decode_value (p, &p);
442 image = load_image (module, 0, TRUE);
445 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
446 g_assert (mono_error_ok (&error));
448 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
449 idx = decode_value (p, &p);
450 image = load_image (module, decode_value (p, &p), TRUE);
453 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
454 g_assert (mono_error_ok (&error));
456 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
457 token = decode_value (p, &p);
458 image = module->assembly->image;
461 klass = mono_class_get_checked (image, token, &error);
462 g_assert (mono_error_ok (&error));
464 case MONO_AOT_TYPEREF_GINST: {
466 MonoGenericContext ctx;
469 gclass = decode_klass_ref (module, p, &p);
472 g_assert (gclass->generic_container);
474 memset (&ctx, 0, sizeof (ctx));
475 ctx.class_inst = decode_generic_inst (module, p, &p);
478 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
479 klass = mono_class_from_mono_type (type);
480 mono_metadata_free_type (type);
483 case MONO_AOT_TYPEREF_VAR: {
485 MonoGenericContainer *container = NULL;
486 gboolean has_constraint = decode_value (p, &p);
488 if (has_constraint) {
489 MonoClass *par_klass;
490 MonoType *gshared_constraint;
492 gshared_constraint = decode_type (module, p, &p);
493 if (!gshared_constraint)
496 par_klass = decode_klass_ref (module, p, &p);
500 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
501 klass = mono_class_from_mono_type (t);
503 int type = decode_value (p, &p);
504 int num = decode_value (p, &p);
505 gboolean is_not_anonymous = decode_value (p, &p);
507 if (is_not_anonymous) {
508 gboolean is_method = decode_value (p, &p);
511 MonoMethod *method_def;
512 g_assert (type == MONO_TYPE_MVAR);
513 method_def = decode_resolve_method_ref (module, p, &p);
517 container = mono_method_get_generic_container (method_def);
519 MonoClass *class_def;
520 g_assert (type == MONO_TYPE_VAR);
521 class_def = decode_klass_ref (module, p, &p);
525 container = class_def->generic_container;
528 // We didn't decode is_method, so we have to infer it from type enum.
529 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
532 t = g_new0 (MonoType, 1);
533 t->type = (MonoTypeEnum)type;
534 if (is_not_anonymous) {
535 t->data.generic_param = mono_generic_container_get_param (container, num);
538 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
539 par->owner = container;
541 t->data.generic_param = par;
542 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
544 // FIXME: Maybe use types directly to avoid
545 // the overhead of creating MonoClass-es
546 klass = mono_class_from_mono_type (t);
552 case MONO_AOT_TYPEREF_ARRAY:
554 rank = decode_value (p, &p);
555 eklass = decode_klass_ref (module, p, &p);
556 klass = mono_array_class_get (eklass, rank);
558 case MONO_AOT_TYPEREF_PTR: {
561 t = decode_type (module, p, &p);
564 klass = mono_class_from_mono_type (t);
568 case MONO_AOT_TYPEREF_BLOB_INDEX: {
569 guint32 offset = decode_value (p, &p);
572 p2 = module->blob + offset;
573 klass = decode_klass_ref (module, p2, &p2);
577 g_assert_not_reached ();
580 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
585 static MonoClassField*
586 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
588 MonoClass *klass = decode_klass_ref (module, buf, &buf);
595 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
599 return mono_class_get_field (klass, token);
603 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
607 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
612 t = (MonoType *)g_malloc0 (sizeof (MonoType));
615 if (*p == MONO_TYPE_PINNED) {
618 } else if (*p == MONO_TYPE_BYREF) {
626 t->type = (MonoTypeEnum)*p;
631 case MONO_TYPE_BOOLEAN:
645 case MONO_TYPE_STRING:
646 case MONO_TYPE_OBJECT:
647 case MONO_TYPE_TYPEDBYREF:
649 case MONO_TYPE_VALUETYPE:
650 case MONO_TYPE_CLASS:
651 t->data.klass = decode_klass_ref (module, p, &p);
653 case MONO_TYPE_SZARRAY:
654 t->data.klass = decode_klass_ref (module, p, &p);
660 t->data.type = decode_type (module, p, &p);
662 case MONO_TYPE_GENERICINST: {
664 MonoGenericContext ctx;
668 gclass = decode_klass_ref (module, p, &p);
671 g_assert (gclass->generic_container);
673 memset (&ctx, 0, sizeof (ctx));
674 ctx.class_inst = decode_generic_inst (module, p, &p);
677 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
678 klass = mono_class_from_mono_type (type);
679 t->data.generic_class = klass->generic_class;
682 case MONO_TYPE_ARRAY: {
683 MonoArrayType *array;
686 // FIXME: memory management
687 array = g_new0 (MonoArrayType, 1);
688 array->eklass = decode_klass_ref (module, p, &p);
691 array->rank = decode_value (p, &p);
692 array->numsizes = decode_value (p, &p);
695 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
696 for (i = 0; i < array->numsizes; ++i)
697 array->sizes [i] = decode_value (p, &p);
699 array->numlobounds = decode_value (p, &p);
700 if (array->numlobounds)
701 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
702 for (i = 0; i < array->numlobounds; ++i)
703 array->lobounds [i] = decode_value (p, &p);
704 t->data.array = array;
708 case MONO_TYPE_MVAR: {
709 MonoClass *klass = decode_klass_ref (module, p, &p);
712 t->data.generic_param = klass->byval_arg.data.generic_param;
716 g_assert_not_reached ();
724 // FIXME: Error handling, memory management
726 static MonoMethodSignature*
727 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
729 MonoMethodSignature *sig;
731 int i, gen_param_count = 0, param_count, call_conv;
733 gboolean hasthis, explicit_this, has_gen_params;
737 has_gen_params = (flags & 0x10) != 0;
738 hasthis = (flags & 0x20) != 0;
739 explicit_this = (flags & 0x40) != 0;
740 call_conv = flags & 0x0F;
743 gen_param_count = decode_value (p, &p);
744 param_count = decode_value (p, &p);
745 if (target && param_count != target->param_count)
747 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
748 sig->param_count = param_count;
749 sig->sentinelpos = -1;
750 sig->hasthis = hasthis;
751 sig->explicit_this = explicit_this;
752 sig->call_convention = call_conv;
753 sig->generic_param_count = gen_param_count;
754 sig->ret = decode_type (module, p, &p);
755 for (i = 0; i < param_count; ++i) {
756 if (*p == MONO_TYPE_SENTINEL) {
757 g_assert (sig->call_convention == MONO_CALL_VARARG);
758 sig->sentinelpos = i;
761 sig->params [i] = decode_type (module, p, &p);
764 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
765 sig->sentinelpos = sig->param_count;
772 static MonoMethodSignature*
773 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
775 return decode_signature_with_target (module, NULL, buf, endbuf);
779 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
781 MonoMethodSignature *sig;
785 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
786 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
792 /* Stores information returned by decode_method_ref () */
797 gboolean no_aot_trampoline;
801 * decode_method_ref_with_target:
803 * Decode a method reference, storing the image/token into a MethodRef structure.
804 * This avoids loading metadata for the method if the caller does not need it. If the method has
805 * no token, then it is loaded from metadata and ref->method is set to the method instance.
806 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
807 * couldn't resolve to TARGET, and return FALSE.
808 * There are some kinds of method references which only support a non-null TARGET.
809 * This means that its not possible to decode this into a method, only to check
810 * that the method reference matches a given method. This is normally not a problem
811 * as these wrappers only occur in the extra_methods table, where we already have
812 * a method we want to lookup.
815 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
817 guint32 image_index, value;
818 MonoImage *image = NULL;
821 memset (ref, 0, sizeof (MethodRef));
823 value = decode_value (p, &p);
824 image_index = value >> 24;
826 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
827 ref->no_aot_trampoline = TRUE;
828 value = decode_value (p, &p);
829 image_index = value >> 24;
832 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
833 if (target && target->wrapper_type)
837 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
839 guint32 wrapper_type;
841 wrapper_type = decode_value (p, &p);
843 if (target && target->wrapper_type != wrapper_type)
847 image = mono_defaults.corlib;
849 switch (wrapper_type) {
850 #ifndef DISABLE_REMOTING
851 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
852 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
856 mono_class_init (m->klass);
860 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
863 case MONO_WRAPPER_PROXY_ISINST: {
864 MonoClass *klass = decode_klass_ref (module, p, &p);
867 ref->method = mono_marshal_get_proxy_cancast (klass);
870 case MONO_WRAPPER_LDFLD:
871 case MONO_WRAPPER_LDFLDA:
872 case MONO_WRAPPER_STFLD:
873 case MONO_WRAPPER_ISINST: {
874 MonoClass *klass = decode_klass_ref (module, p, &p);
877 if (wrapper_type == MONO_WRAPPER_LDFLD)
878 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
879 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
880 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
881 else if (wrapper_type == MONO_WRAPPER_STFLD)
882 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
883 else if (wrapper_type == MONO_WRAPPER_ISINST)
884 ref->method = mono_marshal_get_isinst (klass);
886 g_assert_not_reached ();
889 case MONO_WRAPPER_LDFLD_REMOTE:
890 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
892 case MONO_WRAPPER_STFLD_REMOTE:
893 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
896 case MONO_WRAPPER_ALLOC: {
897 int atype = decode_value (p, &p);
899 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
901 g_error ("Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
904 case MONO_WRAPPER_WRITE_BARRIER: {
905 ref->method = mono_gc_get_write_barrier ();
908 case MONO_WRAPPER_STELEMREF: {
909 int subtype = decode_value (p, &p);
911 if (subtype == WRAPPER_SUBTYPE_NONE) {
912 ref->method = mono_marshal_get_stelemref ();
913 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
916 kind = decode_value (p, &p);
918 /* Can't decode this */
921 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
922 info = mono_marshal_get_wrapper_info (target);
925 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
926 ref->method = target;
933 g_assert_not_reached ();
937 case MONO_WRAPPER_SYNCHRONIZED: {
938 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
942 ref->method = mono_marshal_get_synchronized_wrapper (m);
945 case MONO_WRAPPER_UNKNOWN: {
946 int subtype = decode_value (p, &p);
948 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
949 MonoClass *klass = decode_klass_ref (module, p, &p);
956 if (klass != target->klass)
959 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
960 if (strcmp (target->name, "PtrToStructure"))
962 ref->method = mono_marshal_get_ptr_to_struct (klass);
964 if (strcmp (target->name, "StructureToPtr"))
966 ref->method = mono_marshal_get_struct_to_ptr (klass);
968 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
969 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
973 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
974 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
975 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
979 ref->method = mono_marshal_get_array_accessor_wrapper (m);
980 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
981 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
982 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
983 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
984 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
985 MonoMethodSignature *sig = decode_signature (module, p, &p);
988 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
989 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
990 MonoMethodSignature *sig = decode_signature (module, p, &p);
993 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
995 g_assert_not_reached ();
999 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1000 int subtype = decode_value (p, &p);
1002 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1003 int rank = decode_value (p, &p);
1004 int elem_size = decode_value (p, &p);
1006 ref->method = mono_marshal_get_array_address (rank, elem_size);
1007 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1010 m = decode_resolve_method_ref (module, p, &p);
1016 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1018 info = mono_marshal_get_wrapper_info (target);
1019 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1020 ref->method = target;
1026 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1028 int subtype = decode_value (p, &p);
1031 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1036 if (strcmp (target->name, name) != 0)
1038 ref->method = target;
1040 m = decode_resolve_method_ref (module, p, &p);
1045 /* This should only happen when looking for an extra method */
1048 if (mono_marshal_method_from_wrapper (target) == m)
1049 ref->method = target;
1055 case MONO_WRAPPER_CASTCLASS: {
1056 int subtype = decode_value (p, &p);
1058 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1059 ref->method = mono_marshal_get_castclass_with_cache ();
1060 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1061 ref->method = mono_marshal_get_isinst_with_cache ();
1063 g_assert_not_reached ();
1066 case MONO_WRAPPER_RUNTIME_INVOKE: {
1067 int subtype = decode_value (p, &p);
1072 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1073 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1075 ref->method = target;
1076 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1077 /* Direct wrapper */
1078 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1082 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1083 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1084 /* Virtual direct wrapper */
1085 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1089 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1091 MonoMethodSignature *sig;
1093 sig = decode_signature_with_target (module, NULL, p, &p);
1094 info = mono_marshal_get_wrapper_info (target);
1097 if (info->subtype != subtype)
1099 g_assert (info->d.runtime_invoke.sig);
1100 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1101 ref->method = target;
1107 case MONO_WRAPPER_DELEGATE_INVOKE:
1108 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1109 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1110 gboolean is_inflated = decode_value (p, &p);
1111 WrapperSubtype subtype;
1115 MonoMethod *invoke, *wrapper;
1117 klass = decode_klass_ref (module, p, &p);
1121 switch (wrapper_type) {
1122 case MONO_WRAPPER_DELEGATE_INVOKE:
1123 invoke = mono_get_delegate_invoke (klass);
1124 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1126 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1127 invoke = mono_get_delegate_begin_invoke (klass);
1128 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1130 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1131 invoke = mono_get_delegate_end_invoke (klass);
1132 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1135 g_assert_not_reached ();
1140 * Due to the way mini_get_shared_method () works, we could end up with
1141 * multiple copies of the same wrapper.
1143 if (wrapper->klass != target->klass)
1145 ref->method = target;
1147 ref->method = wrapper;
1151 * These wrappers are associated with a signature, not with a method.
1152 * Since we can't decode them into methods, they need a target method.
1157 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1158 subtype = (WrapperSubtype)decode_value (p, &p);
1159 info = mono_marshal_get_wrapper_info (target);
1161 if (info->subtype != subtype)
1164 if (subtype != WRAPPER_SUBTYPE_NONE)
1168 if (sig_matches_target (module, target, p, &p))
1169 ref->method = target;
1175 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1179 m = decode_resolve_method_ref (module, p, &p);
1182 klass = decode_klass_ref (module, p, &p);
1185 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1189 g_assert_not_reached ();
1191 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1192 image_index = decode_value (p, &p);
1193 ref->token = decode_value (p, &p);
1195 image = load_image (module, image_index, TRUE);
1198 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1201 MonoGenericContext ctx;
1204 * These methods do not have a token which resolves them, so we
1205 * resolve them immediately.
1207 klass = decode_klass_ref (module, p, &p);
1211 if (target && target->klass != klass)
1214 image_index = decode_value (p, &p);
1215 ref->token = decode_value (p, &p);
1217 image = load_image (module, image_index, TRUE);
1221 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, &error);
1223 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1227 memset (&ctx, 0, sizeof (ctx));
1229 if (FALSE && klass->generic_class) {
1230 ctx.class_inst = klass->generic_class->context.class_inst;
1231 ctx.method_inst = NULL;
1233 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1235 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1238 memset (&ctx, 0, sizeof (ctx));
1240 if (!decode_generic_context (module, &ctx, p, &p))
1243 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1245 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1247 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1251 klass = decode_klass_ref (module, p, &p);
1254 method_type = decode_value (p, &p);
1255 switch (method_type) {
1257 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1260 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1263 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1266 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1269 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1272 g_assert_not_reached ();
1275 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1276 image_index = decode_value (p, &p);
1277 value = decode_value (p, &p);
1280 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1282 image = load_image (module, image_index, TRUE);
1295 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1297 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1301 * decode_resolve_method_ref_with_target:
1303 * Similar to decode_method_ref, but resolve and return the method itself.
1306 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1313 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1320 result = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
1322 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1327 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1329 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1332 #ifdef ENABLE_AOT_CACHE
1338 * - Add options for controlling the cache size
1339 * - Handle full cache by deleting old assemblies lru style
1340 * - Maybe add a threshold after an assembly is AOT compiled
1341 * - Add options for enabling this for specific main assemblies
1344 /* The cache directory */
1345 static char *cache_dir;
1347 /* The number of assemblies AOTed in this run */
1348 static int cache_count;
1350 /* Whenever to AOT in-process */
1351 static gboolean in_process;
1354 collect_assemblies (gpointer data, gpointer user_data)
1356 MonoAssembly *ass = data;
1357 GSList **l = user_data;
1359 *l = g_slist_prepend (*l, ass);
1362 #define SHA1_DIGEST_LENGTH 20
1365 * get_aot_config_hash:
1367 * Return a hash for all the version information an AOT module depends on.
1369 static G_GNUC_UNUSED char*
1370 get_aot_config_hash (MonoAssembly *assembly)
1373 GSList *l, *assembly_list = NULL;
1376 guint8 digest [SHA1_DIGEST_LENGTH];
1379 build_info = mono_get_runtime_build_info ();
1381 s = g_string_new (build_info);
1383 mono_assembly_foreach (collect_assemblies, &assembly_list);
1386 * The assembly list includes the current assembly as well, no need
1389 for (l = assembly_list; l; l = l->next) {
1390 MonoAssembly *ass = l->data;
1392 g_string_append (s, "_");
1393 g_string_append (s, ass->aname.name);
1394 g_string_append (s, "_");
1395 g_string_append (s, ass->image->guid);
1398 for (i = 0; i < s->len; ++i) {
1399 if (!isalnum (s->str [i]) && s->str [i] != '-')
1403 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1405 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1406 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1407 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1409 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1411 g_string_free (s, TRUE);
1417 aot_cache_init (void)
1421 enable_aot_cache = TRUE;
1426 * aot_cache_load_module:
1428 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1431 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1433 MonoAotCacheConfig *config;
1435 char *fname, *tmp2, *aot_options, *failure_fname;
1447 if (image_is_dynamic (assembly->image))
1450 /* Check in the list of assemblies enabled for aot caching */
1451 config = mono_get_aot_cache_config ();
1455 MonoDomain *domain = mono_domain_get ();
1456 MonoAssembly *entry_assembly = domain->entry_assembly;
1458 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1459 for (l = config->apps; l; l = l->next) {
1462 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1470 for (l = config->assemblies; l; l = l->next) {
1473 if (!strcmp (assembly->aname.name, n))
1483 home = g_get_home_dir ();
1486 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1487 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1488 g_mkdir_with_parents (cache_dir, 0777);
1492 * The same assembly can be used in multiple configurations, i.e. multiple
1493 * versions of the runtime, with multiple versions of dependent assemblies etc.
1494 * To handle this, we compute a version string containing all this information, hash it,
1495 * and use the hash as a filename suffix.
1497 hash = get_aot_config_hash (assembly);
1499 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1500 fname = g_build_filename (cache_dir, tmp2, NULL);
1504 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1505 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1508 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1512 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1514 * Can't AOT this during startup, so we AOT it when called later from
1515 * mono_aot_get_method ().
1519 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1521 /* Only AOT one assembly per run to avoid slowing down execution too much */
1522 if (cache_count > 0)
1526 /* Check for previous failure */
1527 failure_fname = g_strdup_printf ("%s.failure", fname);
1528 failure_file = fopen (failure_fname, "r");
1530 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1531 g_free (failure_fname);
1534 g_free (failure_fname);
1535 fclose (failure_file);
1538 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1541 * We need to invoke the AOT compiler here. There are multiple approaches:
1542 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1543 * its hard to make the new process load the same set of assemblies.
1544 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1546 * - fork a new process and do the work there.
1549 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1550 /* Maybe due this in another thread ? */
1551 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1553 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1554 failure_fname = g_strdup_printf ("%s.failure", fname);
1555 failure_file = fopen (failure_fname, "a+");
1556 fclose (failure_file);
1557 g_free (failure_fname);
1559 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1563 * - Avoid waiting for the aot process to finish ?
1564 * (less overhead, but multiple processes could aot the same assembly at the same time)
1573 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1574 logfile = fopen (logfile_name, "a+");
1575 g_free (logfile_name);
1577 dup2 (fileno (logfile), 1);
1578 dup2 (fileno (logfile), 2);
1580 aot_options = g_strdup_printf ("outfile=%s", fname);
1581 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1589 waitpid (pid, &exit_status, 0);
1590 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1591 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1593 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1597 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1605 aot_cache_init (void)
1610 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1618 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1622 guint16 *table, *entry;
1625 char *symbol = (char*)name;
1628 symbol = g_strdup_printf ("_%s", name);
1631 /* The first entry points to the hash */
1632 table = (guint16 *)globals [0];
1635 table_size = table [0];
1638 hash = mono_metadata_str_hash (symbol) % table_size;
1640 entry = &table [hash * 2];
1642 /* Search the hash for the index into the globals table */
1644 while (entry [0] != 0) {
1645 guint32 index = entry [0] - 1;
1646 guint32 next = entry [1];
1648 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1650 if (!strcmp (globals [index * 2], symbol)) {
1651 global_index = index;
1656 entry = &table [next * 2];
1662 if (global_index != -1)
1663 *value = globals [global_index * 2 + 1];
1670 char *err = mono_dl_symbol (module, name, value);
1678 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1680 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1682 find_symbol (amodule->sofile, amodule->globals, name, value);
1686 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1688 aot_data_load_func = load_func;
1689 aot_data_free_func = free_func;
1690 aot_data_func_user_data = user_data;
1693 /* Load the separate aot data file for ASSEMBLY */
1695 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1701 if (aot_data_load_func) {
1702 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1708 * Use <assembly name>.aotdata as the default implementation if no callback is given
1710 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1711 map = mono_file_map_open (filename);
1713 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1720 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1724 gboolean usable = TRUE;
1725 gboolean full_aot, safepoints;
1726 guint32 excluded_cpu_optimizations;
1728 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1729 msg = g_strdup_printf ("doesn't match assembly");
1733 build_info = mono_get_runtime_build_info ();
1734 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1735 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1738 g_free (build_info);
1740 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1742 if (mono_aot_only && !full_aot) {
1743 msg = g_strdup_printf ("not compiled with --aot=full");
1746 if (!mono_aot_only && full_aot) {
1747 msg = g_strdup_printf ("compiled with --aot=full");
1750 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1751 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1755 /* mono_arch_find_imt_method () requires this */
1756 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1757 msg = g_strdup_printf ("compiled against LLVM");
1760 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1761 msg = g_strdup_printf ("not compiled against LLVM");
1765 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1766 msg = g_strdup_printf ("not compiled for debugging");
1770 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1771 if (info->opts & excluded_cpu_optimizations) {
1772 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1776 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1777 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1781 if (info->gc_name_index != -1) {
1782 char *gc_name = (char*)&blob [info->gc_name_index];
1783 const char *current_gc_name = mono_gc_get_gc_name ();
1785 if (strcmp (current_gc_name, gc_name) != 0) {
1786 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1791 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1793 if (!safepoints && mono_threads_is_coop_enabled ()) {
1794 msg = g_strdup_printf ("not compiled with safepoints");
1803 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1806 get_call_table_entry (void *table, int index)
1808 #if defined(TARGET_ARM)
1813 ins_addr = (guint32*)table + index;
1815 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1817 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1818 return (char*)ins_addr + (offset * 2) + 8 + 1;
1820 offset = (((int)ins & 0xffffff) << 8) >> 8;
1821 return (char*)ins_addr + (offset * 4) + 8;
1823 #elif defined(TARGET_ARM64)
1824 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1825 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1826 /* The callee expects an ip which points after the call */
1827 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1829 g_assert_not_reached ();
1837 * Initialize the shared got entries for AMODULE.
1840 init_amodule_got (MonoAotModule *amodule)
1844 MonoJumpInfo *patches;
1845 guint32 got_offsets [128];
1849 /* These can't be initialized in load_aot_module () */
1850 if (amodule->shared_got [0] || amodule->got_initializing)
1853 amodule->got_initializing = TRUE;
1855 mp = mono_mempool_new ();
1856 npatches = amodule->info.nshared_got_entries;
1857 for (i = 0; i < npatches; ++i)
1858 got_offsets [i] = i;
1859 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1861 for (i = 0; i < npatches; ++i) {
1864 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1865 amodule->shared_got [i] = NULL;
1866 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1867 amodule->shared_got [i] = NULL;
1868 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1869 amodule->shared_got [i] = NULL;
1870 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1871 amodule->shared_got [i] = amodule->assembly->image;
1872 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1873 if (mono_defaults.corlib) {
1874 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1876 if (mscorlib_amodule)
1877 amodule->shared_got [i] = mscorlib_amodule->got;
1879 amodule->shared_got [i] = amodule->got;
1881 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1882 amodule->shared_got [i] = amodule;
1884 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1885 mono_error_assert_ok (&error);
1890 for (i = 0; i < npatches; ++i)
1891 amodule->got [i] = amodule->shared_got [i];
1893 if (amodule->llvm_got) {
1894 for (i = 0; i < npatches; ++i)
1895 amodule->llvm_got [i] = amodule->shared_got [i];
1898 mono_mempool_destroy (mp);
1902 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1905 MonoAotModule *amodule;
1907 gboolean usable = TRUE;
1908 char *version_symbol = NULL;
1910 gpointer *globals = NULL;
1911 MonoAotFileInfo *info = NULL;
1913 gboolean do_load_image = TRUE;
1914 int align_double, align_int64;
1915 guint8 *aot_data = NULL;
1917 if (mono_compile_aot)
1920 if (assembly->image->aot_module)
1922 * Already loaded. This can happen because the assembly loading code might invoke
1923 * the assembly load hooks multiple times for the same assembly.
1927 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1931 if (static_aot_modules)
1932 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1940 /* Statically linked AOT module */
1941 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1942 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1943 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1944 globals = (void **)info->globals;
1948 if (enable_aot_cache)
1949 sofile = aot_cache_load_module (assembly, &aot_name);
1952 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1954 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1957 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1960 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);
1961 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1963 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1970 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
1971 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1978 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1979 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1982 if (version_symbol) {
1983 /* Old file format */
1984 version = atoi (version_symbol);
1987 version = info->version;
1990 if (version != MONO_AOT_FILE_VERSION) {
1991 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
1997 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
1998 aot_data = open_aot_data (assembly, info, &handle);
2000 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2002 blob = (guint8 *)info->blob;
2005 usable = check_usable (assembly, info, blob, &msg);
2009 if (mono_aot_only) {
2010 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
2012 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
2017 mono_dl_close (sofile);
2018 assembly->image->aot_module = NULL;
2023 align_double = MONO_ABI_ALIGNOF (double);
2024 align_int64 = MONO_ABI_ALIGNOF (gint64);
2025 g_assert (info->double_align == align_double);
2026 g_assert (info->long_align == align_int64);
2027 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2029 amodule = g_new0 (MonoAotModule, 1);
2030 amodule->aot_name = aot_name;
2031 amodule->assembly = assembly;
2033 memcpy (&amodule->info, info, sizeof (*info));
2035 amodule->got = (void **)amodule->info.jit_got;
2036 amodule->llvm_got = (void **)amodule->info.llvm_got;
2037 amodule->globals = globals;
2038 amodule->sofile = sofile;
2039 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2040 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2041 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2043 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2044 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2045 amodule->tables [i] = aot_data + info->table_offsets [i];
2048 mono_os_mutex_init_recursive (&amodule->mutex);
2050 /* Read image table */
2052 guint32 table_len, i;
2055 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2056 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2058 table = (char *)info->image_table;
2061 table_len = *(guint32*)table;
2062 table += sizeof (guint32);
2063 amodule->image_table = g_new0 (MonoImage*, table_len);
2064 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2065 amodule->image_guids = g_new0 (char*, table_len);
2066 amodule->image_table_len = table_len;
2067 for (i = 0; i < table_len; ++i) {
2068 MonoAssemblyName *aname = &(amodule->image_names [i]);
2070 aname->name = g_strdup (table);
2071 table += strlen (table) + 1;
2072 amodule->image_guids [i] = g_strdup (table);
2073 table += strlen (table) + 1;
2075 aname->culture = g_strdup (table);
2076 table += strlen (table) + 1;
2077 memcpy (aname->public_key_token, table, strlen (table) + 1);
2078 table += strlen (table) + 1;
2080 table = (char *)ALIGN_PTR_TO (table, 8);
2081 aname->flags = *(guint32*)table;
2083 aname->major = *(guint32*)table;
2085 aname->minor = *(guint32*)table;
2087 aname->build = *(guint32*)table;
2089 aname->revision = *(guint32*)table;
2094 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2095 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2096 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2097 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2098 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2099 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2100 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2101 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2102 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2103 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2104 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2105 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2107 amodule->blob = info->blob;
2108 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2109 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2110 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2111 amodule->class_name_table = (guint16 *)info->class_name_table;
2112 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2113 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2114 amodule->got_info_offsets = info->got_info_offsets;
2115 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2117 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2118 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2119 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2120 amodule->unwind_info = (guint8 *)info->unwind_info;
2121 amodule->mem_begin = amodule->jit_code_start;
2122 amodule->mem_end = (guint8 *)info->mem_end;
2123 amodule->plt = (guint8 *)info->plt;
2124 amodule->plt_end = (guint8 *)info->plt_end;
2125 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2126 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2127 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2128 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2129 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2131 if (!strcmp (assembly->aname.name, "mscorlib"))
2132 mscorlib_aot_module = amodule;
2134 /* Compute method addresses */
2135 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2136 for (i = 0; i < amodule->info.nmethods; ++i) {
2139 if (amodule->info.llvm_get_method) {
2140 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2142 addr = get_method (i);
2145 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2146 if (!addr && amodule->info.method_addresses) {
2147 addr = get_call_table_entry (amodule->info.method_addresses, i);
2149 if (addr == amodule->info.method_addresses)
2153 amodule->methods [i] = GINT_TO_POINTER (-1);
2155 amodule->methods [i] = addr;
2158 if (make_unreadable) {
2159 #ifndef TARGET_WIN32
2161 guint8 *page_start, *page_end;
2164 addr = amodule->mem_begin;
2166 len = amodule->mem_end - amodule->mem_begin;
2168 /* Round down in both directions to avoid modifying data which is not ours */
2169 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2170 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2171 if (page_end > page_start) {
2172 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2173 g_assert (err == 0);
2178 /* Compute the boundaries of LLVM code */
2179 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2180 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2184 if (amodule->jit_code_start) {
2185 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2186 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2188 if (amodule->llvm_code_start) {
2189 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2190 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2193 g_hash_table_insert (aot_modules, assembly, amodule);
2196 if (amodule->jit_code_start)
2197 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2198 if (amodule->llvm_code_start)
2199 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2201 assembly->image->aot_module = amodule;
2203 if (mono_aot_only && !mono_llvm_only) {
2205 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2206 amodule->use_page_trampolines = code != NULL;
2207 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2211 * Register the plt region as a single trampoline so we can unwind from this code
2213 mono_tramp_info_register (
2214 mono_tramp_info_create (
2217 amodule->plt_end - amodule->plt,
2219 mono_unwind_get_cie_program ()
2225 * Since we store methoddef and classdef tokens when referring to methods/classes in
2226 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2227 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2228 * non-lazily, since we can't handle out-of-date errors later.
2229 * The cached class info also depends on the exact assemblies.
2231 #if defined(__native_client__)
2232 /* TODO: Don't 'load_image' on mscorlib due to a */
2233 /* recursive loading problem. This should be */
2234 /* removed if mscorlib is loaded from disk. */
2235 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2236 do_load_image = TRUE;
2238 do_load_image = FALSE;
2241 if (do_load_image) {
2242 for (i = 0; i < amodule->image_table_len; ++i)
2243 load_image (amodule, i, FALSE);
2246 if (amodule->out_of_date) {
2247 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);
2249 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);
2252 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2256 * mono_aot_register_module:
2258 * This should be called by embedding code to register AOT modules statically linked
2259 * into the executable. AOT_INFO should be the value of the
2260 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2263 mono_aot_register_module (gpointer *aot_info)
2267 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2269 g_assert (info->version == MONO_AOT_FILE_VERSION);
2271 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2272 globals = (void **)info->globals;
2276 aname = (char *)info->assembly_name;
2278 /* This could be called before startup */
2282 if (!static_aot_modules)
2283 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2285 g_hash_table_insert (static_aot_modules, aname, info);
2292 mono_aot_init (void)
2294 mono_os_mutex_init_recursive (&aot_mutex);
2295 mono_os_mutex_init_recursive (&aot_page_mutex);
2296 aot_modules = g_hash_table_new (NULL, NULL);
2298 #ifndef __native_client__
2299 mono_install_assembly_load_hook (load_aot_module, NULL);
2301 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2303 if (g_getenv ("MONO_LASTAOT"))
2304 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2309 mono_aot_cleanup (void)
2311 if (aot_jit_icall_hash)
2312 g_hash_table_destroy (aot_jit_icall_hash);
2314 g_hash_table_destroy (aot_modules);
2318 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2324 info->vtable_size = decode_value (buf, &buf);
2325 if (info->vtable_size == -1)
2328 flags = decode_value (buf, &buf);
2329 info->ghcimpl = (flags >> 0) & 0x1;
2330 info->has_finalize = (flags >> 1) & 0x1;
2331 info->has_cctor = (flags >> 2) & 0x1;
2332 info->has_nested_classes = (flags >> 3) & 0x1;
2333 info->blittable = (flags >> 4) & 0x1;
2334 info->has_references = (flags >> 5) & 0x1;
2335 info->has_static_refs = (flags >> 6) & 0x1;
2336 info->no_special_static_fields = (flags >> 7) & 0x1;
2337 info->is_generic_container = (flags >> 8) & 0x1;
2339 if (info->has_cctor) {
2340 res = decode_method_ref (module, &ref, buf, &buf);
2343 info->cctor_token = ref.token;
2345 if (info->has_finalize) {
2346 res = decode_method_ref (module, &ref, buf, &buf);
2349 info->finalize_image = ref.image;
2350 info->finalize_token = ref.token;
2353 info->instance_size = decode_value (buf, &buf);
2354 info->class_size = decode_value (buf, &buf);
2355 info->packing_size = decode_value (buf, &buf);
2356 info->min_align = decode_value (buf, &buf);
2364 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2367 MonoClass *klass = vtable->klass;
2368 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2370 MonoCachedClassInfo class_info;
2375 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2378 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2381 err = decode_cached_class_info (amodule, &class_info, p, &p);
2385 for (i = 0; i < slot; ++i)
2386 decode_method_ref (amodule, &ref, p, &p);
2388 res = decode_method_ref (amodule, &ref, p, &p);
2391 if (ref.no_aot_trampoline)
2394 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2397 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2401 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2403 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2407 if (klass->rank || !amodule)
2410 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2412 err = decode_cached_class_info (amodule, res, p, &p);
2420 * mono_aot_get_class_from_name:
2422 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2423 * using a cache stored in the AOT file.
2424 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2426 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2430 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2432 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2433 guint16 *table, *entry;
2436 char full_name_buf [1024];
2438 const char *name2, *name_space2;
2440 guint32 cols [MONO_TYPEDEF_SIZE];
2441 GHashTable *nspace_table;
2443 if (!amodule || !amodule->class_name_table)
2446 amodule_lock (amodule);
2450 /* First look in the cache */
2451 if (!amodule->name_cache)
2452 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2453 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2455 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2457 amodule_unlock (amodule);
2462 table_size = amodule->class_name_table [0];
2463 table = amodule->class_name_table + 1;
2465 if (name_space [0] == '\0')
2466 full_name = g_strdup_printf ("%s", name);
2468 if (strlen (name_space) + strlen (name) < 1000) {
2469 sprintf (full_name_buf, "%s.%s", name_space, name);
2470 full_name = full_name_buf;
2472 full_name = g_strdup_printf ("%s.%s", name_space, name);
2475 hash = mono_metadata_str_hash (full_name) % table_size;
2476 if (full_name != full_name_buf)
2479 entry = &table [hash * 2];
2481 if (entry [0] != 0) {
2482 t = &image->tables [MONO_TABLE_TYPEDEF];
2485 guint32 index = entry [0];
2486 guint32 next = entry [1];
2487 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2489 name_table_accesses ++;
2491 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2493 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2494 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2496 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2498 amodule_unlock (amodule);
2499 *klass = mono_class_get_checked (image, token, &error);
2500 if (!mono_error_ok (&error))
2501 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2505 amodule_lock (amodule);
2506 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2507 if (!nspace_table) {
2508 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2509 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2511 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2512 amodule_unlock (amodule);
2518 entry = &table [next * 2];
2525 amodule_unlock (amodule);
2530 /* Compute the boundaries of the LLVM code for AMODULE. */
2532 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2535 int version, fde_count;
2538 if (amodule->info.llvm_get_method) {
2539 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2541 *code_start = (guint8 *)get_method (-1);
2542 *code_end = (guint8 *)get_method (-2);
2544 g_assert (*code_end > *code_start);
2548 g_assert (amodule->mono_eh_frame);
2550 p = amodule->mono_eh_frame;
2552 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2556 g_assert (version == 3);
2559 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2561 fde_count = *(guint32*)p;
2565 if (fde_count > 0) {
2566 *code_start = (guint8 *)amodule->methods [table [0]];
2567 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2575 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2577 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2584 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2586 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2593 * decode_llvm_mono_eh_frame:
2595 * Decode the EH information emitted by our modified LLVM compiler and construct a
2596 * MonoJitInfo structure from it.
2597 * LOCKING: Acquires the domain lock.
2600 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2601 MonoMethod *method, guint8 *code, guint32 code_len,
2602 MonoJitExceptionInfo *clauses, int num_clauses,
2603 MonoJitInfoFlags flags,
2605 int *this_reg, int *this_offset)
2607 guint8 *p, *code1, *code2;
2608 guint8 *fde, *cie, *code_start, *code_end;
2609 int version, fde_count;
2611 int i, pos, left, right;
2612 MonoJitExceptionInfo *ei;
2613 guint32 fde_len, ei_len, nested_len, nindex;
2614 gpointer *type_info;
2616 MonoLLVMFDEInfo info;
2618 if (!amodule->mono_eh_frame) {
2619 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2620 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2621 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2625 g_assert (amodule->mono_eh_frame && code);
2627 p = amodule->mono_eh_frame;
2629 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2633 g_assert (version == 3);
2635 /* func_encoding = *p; */
2637 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2639 fde_count = *(guint32*)p;
2643 /* There is +1 entry in the table */
2644 cie = p + ((fde_count + 1) * 8);
2646 /* Binary search in the table to find the entry for code */
2650 pos = (left + right) / 2;
2652 /* The table contains method index/fde offset pairs */
2653 g_assert (table [(pos * 2)] != -1);
2654 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2655 if (pos + 1 == fde_count) {
2656 code2 = amodule->llvm_code_end;
2658 g_assert (table [(pos + 1) * 2] != -1);
2659 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2664 else if (code >= code2)
2670 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2671 if (pos + 1 == fde_count) {
2672 /* The +1 entry in the table contains the length of the last method */
2673 int len = table [(pos + 1) * 2];
2674 code_end = code_start + len;
2676 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2679 code_len = code_end - code_start;
2681 g_assert (code >= code_start && code < code_end);
2683 if (is_thumb_code (amodule, code_start))
2684 /* Clear thumb flag */
2685 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2687 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2688 /* This won't overflow because there is +1 entry in the table */
2689 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2691 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2693 ei_len = info.ex_info_len;
2694 type_info = info.type_info;
2695 *this_reg = info.this_reg;
2696 *this_offset = info.this_offset;
2698 /* Count number of nested clauses */
2700 for (i = 0; i < ei_len; ++i) {
2701 /* This might be unaligned */
2702 gint32 cindex1 = read32 (type_info [i]);
2705 for (l = nesting [cindex1]; l; l = l->next)
2710 * LLVM might represent one IL region with multiple regions, so have to
2711 * allocate a new JI.
2714 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2715 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2717 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2718 /* This signals that unwind_info points to a normal cached unwind info */
2719 jinfo->from_aot = 0;
2720 jinfo->from_llvm = 1;
2722 for (i = 0; i < ei_len; ++i) {
2724 * clauses contains the original IL exception info saved by the AOT
2725 * compiler, we have to combine that with the information produced by LLVM
2727 /* The type_info entries contain IL clause indexes */
2728 int clause_index = read32 (type_info [i]);
2729 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2730 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2732 g_assert (clause_index < num_clauses);
2733 jei->flags = orig_jei->flags;
2734 jei->data.catch_class = orig_jei->data.catch_class;
2736 jei->try_start = ei [i].try_start;
2737 jei->try_end = ei [i].try_end;
2738 jei->handler_start = ei [i].handler_start;
2739 jei->clause_index = clause_index;
2741 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2742 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2743 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2744 /* Make sure we transition to thumb when a handler starts */
2745 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2749 /* See exception_cb () in mini-llvm.c as to why this is needed */
2751 for (i = 0; i < ei_len; ++i) {
2752 gint32 cindex1 = read32 (type_info [i]);
2755 for (l = nesting [cindex1]; l; l = l->next) {
2756 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2757 MonoJitExceptionInfo *nesting_ei;
2758 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2760 nesting_ei = &jinfo->clauses [nindex];
2763 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2764 nesting_ei->flags = nesting_clause->flags;
2765 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2766 nesting_ei->clause_index = nesting_cindex;
2769 g_assert (nindex == ei_len + nested_len);
2775 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2779 if (async_context) {
2780 res = mono_domain_alloc0_lock_free (domain, size);
2781 InterlockedExchangeAdd (&async_jit_info_size, size);
2783 res = mono_domain_alloc0 (domain, size);
2789 * LOCKING: Acquires the domain lock.
2790 * In async context, this is async safe.
2793 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2794 MonoMethod *method, guint8* ex_info,
2795 guint8 *code, guint32 code_len)
2797 int i, buf_len, num_clauses, len;
2799 MonoJitInfoFlags flags = JIT_INFO_NONE;
2800 guint unwind_info, eflags;
2801 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2802 gboolean from_llvm, has_gc_map;
2804 int try_holes_info_size, num_holes;
2805 int this_reg = 0, this_offset = 0;
2808 /* Load the method info from the AOT file */
2809 async = mono_thread_info_is_async_context ();
2812 eflags = decode_value (p, &p);
2813 has_generic_jit_info = (eflags & 1) != 0;
2814 has_dwarf_unwind_info = (eflags & 2) != 0;
2815 has_clauses = (eflags & 4) != 0;
2816 has_seq_points = (eflags & 8) != 0;
2817 from_llvm = (eflags & 16) != 0;
2818 has_try_block_holes = (eflags & 32) != 0;
2819 has_gc_map = (eflags & 64) != 0;
2820 has_arch_eh_jit_info = (eflags & 128) != 0;
2822 if (has_dwarf_unwind_info) {
2823 unwind_info = decode_value (p, &p);
2824 g_assert (unwind_info < (1 << 30));
2826 unwind_info = decode_value (p, &p);
2828 if (has_generic_jit_info)
2829 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2831 if (has_try_block_holes) {
2832 num_holes = decode_value (p, &p);
2833 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2834 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2836 num_holes = try_holes_info_size = 0;
2839 if (has_arch_eh_jit_info) {
2840 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2841 /* Overwrite the original code_len which includes alignment padding */
2842 code_len = decode_value (p, &p);
2845 /* Exception table */
2847 num_clauses = decode_value (p, &p);
2852 MonoJitExceptionInfo *clauses;
2859 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2862 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2863 nesting = g_new0 (GSList*, num_clauses);
2865 for (i = 0; i < num_clauses; ++i) {
2866 MonoJitExceptionInfo *ei = &clauses [i];
2868 ei->flags = decode_value (p, &p);
2870 if (decode_value (p, &p))
2871 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2873 ei->clause_index = i;
2875 ei->try_offset = decode_value (p, &p);
2876 ei->try_len = decode_value (p, &p);
2877 ei->handler_offset = decode_value (p, &p);
2878 ei->handler_len = decode_value (p, &p);
2880 /* Read the list of nesting clauses */
2882 int nesting_index = decode_value (p, &p);
2883 if (nesting_index == -1)
2885 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2889 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2892 for (i = 0; i < num_clauses; ++i)
2893 g_slist_free (nesting [i]);
2896 len = mono_jit_info_size (flags, num_clauses, num_holes);
2897 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2898 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2900 for (i = 0; i < jinfo->num_clauses; ++i) {
2901 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2903 ei->flags = decode_value (p, &p);
2905 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2906 /* Not used for catch clauses */
2907 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2908 ei->exvar_offset = decode_value (p, &p);
2910 ei->exvar_offset = decode_value (p, &p);
2913 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2914 ei->data.filter = code + decode_value (p, &p);
2916 int len = decode_value (p, &p);
2922 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2926 ei->try_start = code + decode_value (p, &p);
2927 ei->try_end = code + decode_value (p, &p);
2928 ei->handler_start = code + decode_value (p, &p);
2931 jinfo->unwind_info = unwind_info;
2932 jinfo->domain_neutral = 0;
2933 jinfo->from_aot = 1;
2936 if (has_try_block_holes) {
2937 MonoTryBlockHoleTableJitInfo *table;
2939 g_assert (jinfo->has_try_block_holes);
2941 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2944 table->num_holes = (guint16)num_holes;
2945 for (i = 0; i < num_holes; ++i) {
2946 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2947 hole->clause = decode_value (p, &p);
2948 hole->length = decode_value (p, &p);
2949 hole->offset = decode_value (p, &p);
2953 if (has_arch_eh_jit_info) {
2954 MonoArchEHJitInfo *eh_info;
2956 g_assert (jinfo->has_arch_eh_info);
2958 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
2959 eh_info->stack_size = decode_value (p, &p);
2960 eh_info->epilog_size = decode_value (p, &p);
2964 /* The rest is not needed in async mode */
2965 jinfo->async = TRUE;
2966 jinfo->d.aot_info = amodule;
2971 if (has_generic_jit_info) {
2972 MonoGenericJitInfo *gi;
2975 g_assert (jinfo->has_generic_jit_info);
2977 gi = mono_jit_info_get_generic_jit_info (jinfo);
2980 gi->nlocs = decode_value (p, &p);
2982 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
2983 for (i = 0; i < gi->nlocs; ++i) {
2984 MonoDwarfLocListEntry *entry = &gi->locations [i];
2986 entry->is_reg = decode_value (p, &p);
2987 entry->reg = decode_value (p, &p);
2989 entry->offset = decode_value (p, &p);
2991 entry->from = decode_value (p, &p);
2992 entry->to = decode_value (p, &p);
2997 gi->has_this = this_reg != -1;
2998 gi->this_reg = this_reg;
2999 gi->this_offset = this_offset;
3001 gi->has_this = decode_value (p, &p);
3002 gi->this_reg = decode_value (p, &p);
3003 gi->this_offset = decode_value (p, &p);
3007 len = decode_value (p, &p);
3011 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
3013 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
3014 if (decode_value (p, &p)) {
3016 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3018 gsctx->is_gsharedvt = TRUE;
3022 if (method && has_seq_points) {
3023 MonoSeqPointInfo *seq_points;
3025 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3027 mono_domain_lock (domain);
3028 /* This could be set already since this function can be called more than once for the same method */
3029 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3030 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3032 mono_seq_point_info_free (seq_points);
3033 mono_domain_unlock (domain);
3036 /* Load debug info */
3037 buf_len = decode_value (p, &p);
3039 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3043 int map_size = decode_value (p, &p);
3044 /* The GC map requires 4 bytes of alignment */
3045 while ((guint64)(gsize)p % 4)
3051 if (amodule != jinfo->d.method->klass->image->aot_module) {
3054 ji_to_amodule = g_hash_table_new (NULL, NULL);
3055 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3063 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3065 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3066 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3070 * mono_aot_get_unwind_info:
3072 * Return a pointer to the DWARF unwind info belonging to JI.
3075 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3077 MonoAotModule *amodule;
3079 guint8 *code = (guint8 *)ji->code_start;
3082 amodule = (MonoAotModule *)ji->d.aot_info;
3084 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3086 g_assert (ji->from_aot);
3088 if (!amodule_contains_code_addr (amodule, code)) {
3089 /* ji belongs to a different aot module than amodule */
3091 g_assert (ji_to_amodule);
3092 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3094 g_assert (amodule_contains_code_addr (amodule, code));
3098 p = amodule->unwind_info + ji->unwind_info;
3099 *unwind_info_len = decode_value (p, &p);
3104 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3106 int mid = (lo + hi) / 2;
3113 for (i = lo; i < hi; ++i)
3114 if (array [i] > array [i + 1])
3117 /* Already sorted */
3121 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3122 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3124 if (array [mid] < array [mid + 1])
3130 for (i = lo; i <= hi; i ++) {
3131 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3132 scratch [i] = array [t_lo];
3133 scratch_indexes [i] = indexes [t_lo];
3136 scratch [i] = array [t_hi];
3137 scratch_indexes [i] = indexes [t_hi];
3141 for (i = lo; i <= hi; ++i) {
3142 array [i] = scratch [i];
3143 indexes [i] = scratch_indexes [i];
3148 msort_method_addresses (gpointer *array, int *indexes, int len)
3151 int *scratch_indexes;
3153 scratch = g_new (gpointer, len);
3154 scratch_indexes = g_new (int, len);
3155 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3157 g_free (scratch_indexes);
3161 * mono_aot_find_jit_info:
3163 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3164 * to the jit info tables.
3165 * FIXME: Large sizes in the lock free allocator
3168 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3170 int pos, left, right, code_len;
3171 int method_index, table_len;
3173 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3174 MonoMethod *method = NULL;
3176 guint8 *code, *ex_info, *p;
3180 guint8 *code1, *code2;
3187 nmethods = amodule->info.nmethods;
3189 if (domain != mono_get_root_domain ())
3193 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3196 async = mono_thread_info_is_async_context ();
3198 /* Compute a sorted table mapping code to method indexes. */
3199 if (!amodule->sorted_methods) {
3201 gpointer *methods = g_new0 (gpointer, nmethods);
3202 int *method_indexes = g_new0 (int, nmethods);
3203 int methods_len = 0;
3205 for (i = 0; i < nmethods; ++i) {
3206 /* Skip the -1 entries to speed up sorting */
3207 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3209 methods [methods_len] = amodule->methods [i];
3210 method_indexes [methods_len] = i;
3213 /* Use a merge sort as this is mostly sorted */
3214 msort_method_addresses (methods, method_indexes, methods_len);
3215 for (i = 0; i < methods_len -1; ++i)
3216 g_assert (methods [i] <= methods [i + 1]);
3217 amodule->sorted_methods_len = methods_len;
3218 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3219 /* Somebody got in before us */
3221 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3222 /* Somebody got in before us */
3223 g_free (method_indexes);
3226 /* Binary search in the sorted_methods table */
3227 methods = amodule->sorted_methods;
3228 methods_len = amodule->sorted_methods_len;
3229 code = (guint8 *)addr;
3231 right = methods_len;
3233 pos = (left + right) / 2;
3235 code1 = (guint8 *)methods [pos];
3236 if (pos + 1 == methods_len) {
3237 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3238 code2 = amodule->jit_code_end;
3240 code2 = amodule->llvm_code_end;
3242 code2 = (guint8 *)methods [pos + 1];
3247 else if (code >= code2)
3253 g_assert (addr >= methods [pos]);
3254 if (pos + 1 < methods_len)
3255 g_assert (addr < methods [pos + 1]);
3256 method_index = amodule->sorted_method_indexes [pos];
3258 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3260 JitInfoMap *table = amodule->async_jit_info_table;
3264 len = table [0].method_index;
3265 for (i = 1; i < len; ++i) {
3266 if (table [i].method_index == method_index)
3267 return table [i].jinfo;
3272 code = (guint8 *)amodule->methods [method_index];
3273 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3275 if (pos == methods_len - 1) {
3276 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3277 code_len = amodule->jit_code_end - code;
3279 code_len = amodule->llvm_code_end - code;
3281 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3284 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3286 /* Might be a wrapper/extra method */
3288 if (amodule->extra_methods) {
3289 amodule_lock (amodule);
3290 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3291 amodule_unlock (amodule);
3297 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3299 * This is hit for extra methods which are called directly, so they are
3300 * not in amodule->extra_methods.
3302 table_len = amodule->extra_method_info_offsets [0];
3303 table = amodule->extra_method_info_offsets + 1;
3310 pos = ((left + right) / 2);
3312 g_assert (pos < table_len);
3314 if (table [pos * 2] < method_index)
3316 else if (table [pos * 2] > method_index)
3322 p = amodule->blob + table [(pos * 2) + 1];
3323 method = decode_resolve_method_ref (amodule, p, &p);
3325 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3329 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3330 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3332 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3339 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3341 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3343 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3345 /* Add it to the normal JitInfo tables */
3347 JitInfoMap *old_table, *new_table;
3351 * Use a simple inmutable table with linear search to cache async jit info entries.
3352 * This assumes that the number of entries is small.
3355 /* Copy the table, adding a new entry at the end */
3356 old_table = amodule->async_jit_info_table;
3358 len = old_table[0].method_index;
3361 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3363 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3364 new_table [0].method_index = len + 1;
3365 new_table [len].method_index = method_index;
3366 new_table [len].jinfo = jinfo;
3368 mono_memory_barrier ();
3369 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3373 mono_jit_info_table_add (domain, jinfo);
3376 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3377 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3384 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3392 case MONO_PATCH_INFO_METHOD:
3393 case MONO_PATCH_INFO_METHOD_JUMP:
3394 case MONO_PATCH_INFO_ICALL_ADDR:
3395 case MONO_PATCH_INFO_METHOD_RGCTX:
3396 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3400 res = decode_method_ref (aot_module, &ref, p, &p);
3404 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)) {
3405 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3406 ji->type = MONO_PATCH_INFO_ABS;
3410 ji->data.method = ref.method;
3413 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3414 if (!ji->data.method)
3415 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3417 g_assert (ji->data.method);
3418 mono_class_init (ji->data.method->klass);
3422 case MONO_PATCH_INFO_INTERNAL_METHOD:
3423 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3424 guint32 len = decode_value (p, &p);
3426 ji->data.name = (char*)p;
3430 case MONO_PATCH_INFO_METHODCONST:
3432 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3433 if (!ji->data.method)
3436 case MONO_PATCH_INFO_VTABLE:
3437 case MONO_PATCH_INFO_CLASS:
3438 case MONO_PATCH_INFO_IID:
3439 case MONO_PATCH_INFO_ADJUSTED_IID:
3441 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3442 if (!ji->data.klass)
3445 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3446 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3447 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p);
3448 if (!ji->data.del_tramp->klass)
3450 if (decode_value (p, &p)) {
3451 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3452 if (!ji->data.del_tramp->method)
3455 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3457 case MONO_PATCH_INFO_IMAGE:
3458 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
3459 if (!ji->data.image)
3462 case MONO_PATCH_INFO_FIELD:
3463 case MONO_PATCH_INFO_SFLDA:
3465 ji->data.field = decode_field_info (aot_module, p, &p);
3466 if (!ji->data.field)
3469 case MONO_PATCH_INFO_SWITCH:
3470 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3471 ji->data.table->table_size = decode_value (p, &p);
3472 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3473 ji->data.table->table = (MonoBasicBlock**)table;
3474 for (i = 0; i < ji->data.table->table_size; i++)
3475 table [i] = (gpointer)(gssize)decode_value (p, &p);
3477 case MONO_PATCH_INFO_R4: {
3480 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3481 val = decode_value (p, &p);
3482 *(float*)ji->data.target = *(float*)&val;
3485 case MONO_PATCH_INFO_R8: {
3489 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3491 val [0] = decode_value (p, &p);
3492 val [1] = decode_value (p, &p);
3493 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3494 *(double*)ji->data.target = *(double*)&v;
3497 case MONO_PATCH_INFO_LDSTR:
3498 image = load_image (aot_module, decode_value (p, &p), TRUE);
3501 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3503 case MONO_PATCH_INFO_RVA:
3504 case MONO_PATCH_INFO_DECLSEC:
3505 case MONO_PATCH_INFO_LDTOKEN:
3506 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3508 image = load_image (aot_module, decode_value (p, &p), TRUE);
3511 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3513 ji->data.token->has_context = decode_value (p, &p);
3514 if (ji->data.token->has_context) {
3515 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3520 case MONO_PATCH_INFO_EXC_NAME:
3521 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3522 if (!ji->data.klass)
3524 ji->data.name = ji->data.klass->name;
3526 case MONO_PATCH_INFO_METHOD_REL:
3527 ji->data.offset = decode_value (p, &p);
3529 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3530 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3531 case MONO_PATCH_INFO_GC_NURSERY_START:
3532 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3533 case MONO_PATCH_INFO_JIT_TLS_ID:
3535 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3536 ji->data.index = decode_value (p, &p);
3538 case MONO_PATCH_INFO_RGCTX_FETCH:
3539 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3541 MonoJumpInfoRgctxEntry *entry;
3542 guint32 offset, val;
3545 offset = decode_value (p, &p);
3546 val = decode_value (p, &p);
3548 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3549 p2 = aot_module->blob + offset;
3550 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3551 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3552 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3553 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3554 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3556 res = decode_patch (aot_module, mp, entry->data, p, &p);
3559 ji->data.rgctx_entry = entry;
3562 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3563 case MONO_PATCH_INFO_AOT_MODULE:
3564 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3566 case MONO_PATCH_INFO_SIGNATURE:
3567 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3568 ji->data.target = decode_signature (aot_module, p, &p);
3570 case MONO_PATCH_INFO_TLS_OFFSET:
3571 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3573 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3574 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3575 info->sig = decode_signature (aot_module, p, &p);
3576 g_assert (info->sig);
3577 info->method = decode_resolve_method_ref (aot_module, p, &p);
3578 g_assert (info->method);
3580 ji->data.target = info;
3583 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3584 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3587 info->method = decode_resolve_method_ref (aot_module, p, &p);
3588 g_assert (info->method);
3589 info->num_entries = decode_value (p, &p);
3590 info->count_entries = info->num_entries;
3591 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3592 for (i = 0; i < info->num_entries; ++i) {
3593 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3595 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3596 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3597 case MONO_PATCH_INFO_CLASS: {
3598 MonoClass *klass = decode_klass_ref (aot_module, p, &p);
3601 template_->data = &klass->byval_arg;
3604 case MONO_PATCH_INFO_FIELD:
3605 template_->data = decode_field_info (aot_module, p, &p);
3606 if (!template_->data)
3610 g_assert_not_reached ();
3614 ji->data.target = info;
3617 case MONO_PATCH_INFO_LDSTR_LIT: {
3618 int len = decode_value (p, &p);
3621 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3622 memcpy (s, p, len + 1);
3625 ji->data.target = s;
3628 case MONO_PATCH_INFO_VIRT_METHOD: {
3629 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3631 info->klass = decode_klass_ref (aot_module, p, &p);
3632 g_assert (info->klass);
3633 info->method = decode_resolve_method_ref (aot_module, p, &p);
3634 g_assert (info->method);
3636 ji->data.target = info;
3639 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3641 case MONO_PATCH_INFO_AOT_JIT_INFO:
3642 ji->data.index = decode_value (p, &p);
3645 g_warning ("unhandled type %d", ji->type);
3646 g_assert_not_reached ();
3660 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3661 * MonoJumpInfo structures allocated from MP.
3663 static MonoJumpInfo*
3664 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3666 MonoJumpInfo *patches;
3669 guint32 *got_info_offsets;
3674 got = amodule->llvm_got;
3675 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3678 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3681 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3682 for (i = 0; i < n_patches; ++i) {
3683 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3686 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3688 /* See load_method () for SFLDA */
3689 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3690 /* Already loaded */
3692 res = decode_patch (amodule, mp, ji, p, &p);
3701 static MonoJumpInfo*
3702 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3703 gboolean llvm, guint32 **got_slots,
3704 guint8 *buf, guint8 **endbuf)
3706 MonoJumpInfo *patches;
3712 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3713 for (pindex = 0; pindex < n_patches; ++pindex) {
3714 (*got_slots)[pindex] = decode_value (p, &p);
3717 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3719 g_free (*got_slots);
3729 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3732 * Jump addresses cannot be patched by the trampoline code since it
3733 * does not have access to the caller's address. Instead, we collect
3734 * the addresses of the GOT slots pointing to a method, and patch
3735 * them after the method has been compiled.
3737 MonoJitDomainInfo *info = domain_jit_info (domain);
3740 mono_domain_lock (domain);
3741 if (!info->jump_target_got_slot_hash)
3742 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3743 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3744 list = g_slist_prepend (list, got_slot);
3745 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3746 mono_domain_unlock (domain);
3752 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3753 * pointer to the native code of the method, or NULL if not found.
3754 * METHOD might not be set if the caller only has the image/token info.
3757 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3759 MonoJitInfo *jinfo = NULL;
3760 guint8 *code = NULL, *info;
3763 init_amodule_got (amodule);
3765 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3767 /* The caller cannot handle this */
3768 g_assert_not_reached ();
3772 if (domain != mono_get_root_domain ())
3773 /* Non shared AOT code can't be used in other appdomains */
3776 if (amodule->out_of_date)
3779 if (amodule->info.llvm_get_method) {
3781 * Obtain the method address by calling a generated function in the LLVM module.
3783 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3784 code = (guint8 *)get_method (method_index);
3789 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3790 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3795 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3796 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3798 full_name = mono_method_full_name (method, TRUE);
3799 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3804 code = (guint8 *)amodule->methods [method_index];
3807 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3809 if (!amodule->methods_loaded) {
3810 amodule_lock (amodule);
3811 if (!amodule->methods_loaded) {
3814 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3815 mono_memory_barrier ();
3816 amodule->methods_loaded = loaded;
3818 amodule_unlock (amodule);
3821 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3824 if (mono_last_aot_method != -1) {
3825 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3827 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3830 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3832 mono_error_cleanup (&error);/* FIXME don't swallow the error */
3835 char *name = mono_method_full_name (method, TRUE);
3836 g_print ("LAST AOT METHOD: %s.\n", name);
3839 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3844 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3845 res = init_llvm_method (amodule, method_index, method, NULL, NULL);
3850 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3855 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3857 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3860 full_name = mono_method_full_name (method, TRUE);
3863 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3865 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3869 amodule_lock (amodule);
3871 InterlockedIncrement (&mono_jit_stats.methods_aot);
3873 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3877 if (method && method->wrapper_type)
3878 g_hash_table_insert (amodule->method_to_code, method, code);
3880 amodule_unlock (amodule);
3882 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3887 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, &error);
3889 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3891 mono_profiler_method_jit (method);
3892 jinfo = mono_jit_info_table_find (domain, (char*)code);
3894 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3907 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3909 guint32 table_size, entry_size, hash;
3910 guint32 *table, *entry;
3912 static guint32 n_extra_decodes;
3914 if (!amodule || amodule->out_of_date)
3917 table_size = amodule->extra_method_table [0];
3918 hash = hash_full % table_size;
3919 table = amodule->extra_method_table + 1;
3922 entry = &table [hash * entry_size];
3929 guint32 key = entry [0];
3930 guint32 value = entry [1];
3931 guint32 next = entry [entry_size - 1];
3935 p = amodule->blob + key;
3938 amodule_lock (amodule);
3939 if (!amodule->method_ref_to_method)
3940 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
3941 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
3942 amodule_unlock (amodule);
3944 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
3946 * Can't catche runtime invoke wrappers since it would break
3947 * the check in decode_method_ref_with_target ().
3949 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
3950 amodule_lock (amodule);
3951 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
3952 amodule_unlock (amodule);
3961 * Special case: wrappers of shared generic methods.
3962 * This is needed because of the way mini_get_shared_method () works,
3963 * we could end up with multiple copies of the same wrapper.
3965 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
3966 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3967 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
3968 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
3970 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
3975 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
3976 method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
3977 WrapperInfo *info1 = mono_marshal_get_wrapper_info (method);
3978 WrapperInfo *info2 = mono_marshal_get_wrapper_info (m);
3980 if (info1 && info2 && info1->subtype == info2->subtype && method->klass == m->klass) {
3986 /* Methods decoded needlessly */
3988 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
3993 entry = &table [next * entry_size];
4002 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4004 g_ptr_array_add ((GPtrArray*)user_data, value);
4010 * Try finding METHOD in the extra_method table in all AOT images.
4011 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4012 * module where the method was found.
4015 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4020 guint32 hash = mono_aot_method_hash (method);
4022 /* Try the method's module first */
4023 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4024 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4025 if (index != 0xffffff)
4029 * Try all other modules.
4030 * This is needed because generic instances klass->image points to the image
4031 * containing the generic definition, but the native code is generated to the
4032 * AOT image which contains the reference.
4035 /* Make a copy to avoid doing the search inside the aot lock */
4036 modules = g_ptr_array_new ();
4038 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4042 for (i = 0; i < modules->len; ++i) {
4043 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4045 if (amodule != method->klass->image->aot_module)
4046 index = find_aot_method_in_amodule (amodule, method, hash);
4047 if (index != 0xffffff) {
4048 *out_amodule = amodule;
4053 g_ptr_array_free (modules, TRUE);
4059 mono_aot_find_method_index (MonoMethod *method)
4061 MonoAotModule *out_amodule;
4062 return find_aot_method (method, &out_amodule);
4066 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4068 MonoDomain *domain = mono_domain_get ();
4071 gboolean from_plt = method == NULL;
4072 int pindex, n_patches;
4074 MonoJitInfo *jinfo = NULL;
4076 guint8 *code, *info;
4078 code = (guint8 *)amodule->methods [method_index];
4079 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4084 klass = method->klass;
4085 decode_klass_ref (amodule, p, &p);
4087 klass = decode_klass_ref (amodule, p, &p);
4090 n_patches = decode_value (p, &p);
4093 MonoJumpInfo *patches;
4098 mp = mono_mempool_new ();
4100 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4105 got = amodule->llvm_got;
4109 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4110 if (patches == NULL) {
4111 mono_mempool_destroy (mp);
4115 for (pindex = 0; pindex < n_patches; ++pindex) {
4116 MonoJumpInfo *ji = &patches [pindex];
4120 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4121 * been initialized by load_method () for a static cctor before the cctor has
4122 * finished executing (#23242).
4124 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4125 /* In llvm-only made, we might encounter shared methods */
4126 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4130 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, &error);
4132 /* This cannot be resolved in mono_resolve_patch_target () */
4133 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4134 // FIXME: Lookup using the index
4135 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4136 ji->type = MONO_PATCH_INFO_ABS;
4137 ji->data.target = jinfo;
4139 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, &error);
4140 mono_error_raise_exception (&error); /* FIXME: don't raise here */
4141 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4142 addr = mono_create_ftnptr (domain, addr);
4143 mono_memory_barrier ();
4144 got [got_slots [pindex]] = addr;
4145 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4146 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4148 ji->type = MONO_PATCH_INFO_NONE;
4153 mono_mempool_destroy (mp);
4156 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4157 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4160 mono_runtime_class_init (mono_class_vtable (domain, init_class));
4161 else if (from_plt && klass && !klass->generic_container)
4162 mono_runtime_class_init (mono_class_vtable (domain, klass));
4174 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4176 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4179 // FIXME: Handle failure
4180 res = init_llvm_method (amodule, method_index, NULL, NULL, NULL);
4185 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4187 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4190 MonoGenericContext *context;
4194 g_assert (this_obj);
4195 klass = this_obj->vtable->klass;
4197 amodule_lock (amodule);
4198 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4199 amodule_unlock (amodule);
4202 context = mono_method_get_context (method);
4205 res = init_llvm_method (amodule, method_index, NULL, klass, context);
4210 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4212 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4214 MonoGenericContext context = { NULL, NULL };
4215 MonoClass *klass = rgctx->class_vtable->klass;
4217 if (klass->generic_class)
4218 context.class_inst = klass->generic_class->context.class_inst;
4219 else if (klass->generic_container)
4220 context.class_inst = klass->generic_container->context.class_inst;
4221 context.method_inst = rgctx->method_inst;
4223 res = init_llvm_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4228 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4230 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4233 MonoGenericContext *context;
4236 klass = vtable->klass;
4238 amodule_lock (amodule);
4239 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4240 amodule_unlock (amodule);
4243 context = mono_method_get_context (method);
4246 res = init_llvm_method (amodule, method_index, NULL, klass, context);
4251 * mono_aot_get_method:
4253 * Return a pointer to the AOTed native code for METHOD if it can be found,
4255 * On platforms with function pointers, this doesn't return a function pointer.
4258 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4260 MonoClass *klass = method->klass;
4261 MonoMethod *orig_method = method;
4262 guint32 method_index;
4263 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4265 gboolean cache_result = FALSE;
4267 if (domain != mono_get_root_domain ())
4268 /* Non shared AOT code can't be used in other appdomains */
4271 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4272 /* This cannot be AOTed during startup, so do it now */
4273 if (!mscorlib_aot_loaded) {
4274 mscorlib_aot_loaded = TRUE;
4275 load_aot_module (klass->image->assembly, NULL);
4276 amodule = (MonoAotModule *)klass->image->aot_module;
4283 if (amodule->out_of_date)
4286 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4287 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4288 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4289 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4293 * Use the original method instead of its invoke-with-check wrapper.
4294 * This is not a problem when using full-aot, since it doesn't support
4297 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4298 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4300 g_assert (klass->inited);
4302 /* Find method index */
4303 method_index = 0xffffff;
4304 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4305 MonoMethod *orig_method = method;
4307 * For generic methods, we store the fully shared instance in place of the
4310 method = mono_method_get_declaring_generic_method (method);
4311 method_index = mono_metadata_token_index (method->token) - 1;
4313 if (mono_llvm_only) {
4314 /* Needed by mono_aot_init_gshared_method_this () */
4315 /* orig_method is a random instance but it is enough to make init_llvm_method () work */
4316 amodule_lock (amodule);
4317 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4318 amodule_unlock (amodule);
4320 } else if (method->is_inflated || !method->token) {
4321 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4322 amodule_lock (amodule);
4323 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4324 amodule_unlock (amodule);
4328 cache_result = TRUE;
4329 method_index = find_aot_method (method, &amodule);
4331 * Special case the ICollection<T> wrappers for arrays, as they cannot
4332 * be statically enumerated, and each wrapper ends up calling the same
4335 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4336 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4338 code = (guint8 *)mono_aot_get_method (domain, m);
4344 * Special case Array.GetGenericValueImpl which is a generic icall.
4345 * Generic sharing currently can't handle it, but the icall returns data using
4346 * an out parameter, so the managed-to-native wrappers can share the same code.
4348 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4351 MonoGenericContext ctx;
4352 MonoType *args [16];
4354 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4355 /* Avoid recursion */
4358 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4361 memset (&ctx, 0, sizeof (ctx));
4362 args [0] = &mono_defaults.object_class->byval_arg;
4363 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4365 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4367 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4370 * Get the code for the <object> instantiation which should be emitted into
4371 * the mscorlib aot image by the AOT compiler.
4373 code = (guint8 *)mono_aot_get_method (domain, m);
4378 /* Same for CompareExchange<T> and Exchange<T> */
4379 /* Same for Volatile.Read<T>/Write<T> */
4380 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4381 ((!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]))) ||
4382 (!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)))) ||
4383 (!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])))))) {
4386 MonoGenericContext ctx;
4387 MonoType *args [16];
4388 gpointer iter = NULL;
4390 while ((m = mono_class_get_methods (method->klass, &iter))) {
4391 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4396 memset (&ctx, 0, sizeof (ctx));
4397 args [0] = &mono_defaults.object_class->byval_arg;
4398 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4400 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4402 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4404 /* Avoid recursion */
4409 * Get the code for the <object> instantiation which should be emitted into
4410 * the mscorlib aot image by the AOT compiler.
4412 code = (guint8 *)mono_aot_get_method (domain, m);
4417 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4418 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4419 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4421 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4422 MonoMethod *array_method = info->d.array_accessor.method;
4423 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4424 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4425 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4428 m = mono_marshal_get_array_accessor_wrapper (m);
4430 code = (guint8 *)mono_aot_get_method (domain, m);
4438 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4439 /* Partial sharing */
4442 shared = mini_get_shared_method (method);
4443 method_index = find_aot_method (shared, &amodule);
4444 if (method_index != 0xffffff)
4448 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4451 /* Use the all-vt shared method since this is what was AOTed */
4452 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4453 method_index = find_aot_method (shared, &amodule);
4454 if (method_index != 0xffffff)
4455 method = mini_get_shared_method_full (method, TRUE, FALSE);
4458 if (method_index == 0xffffff) {
4459 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4462 full_name = mono_method_full_name (method, TRUE);
4463 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4469 if (method_index == 0xffffff)
4472 /* Needed by find_jit_info */
4473 amodule_lock (amodule);
4474 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4475 amodule_unlock (amodule);
4478 method_index = mono_metadata_token_index (method->token) - 1;
4481 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index);
4482 if (code && cache_result) {
4483 amodule_lock (amodule);
4484 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4485 amodule_unlock (amodule);
4491 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4495 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4497 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4503 method_index = mono_metadata_token_index (token) - 1;
4505 return load_method (domain, aot_module, image, NULL, token, method_index);
4511 } IsGotEntryUserData;
4514 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4516 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4517 MonoAotModule *aot_module = (MonoAotModule*)value;
4519 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4524 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4526 IsGotEntryUserData user_data;
4531 user_data.addr = addr;
4532 user_data.res = FALSE;
4534 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4537 return user_data.res;
4542 MonoAotModule *module;
4543 } FindAotModuleUserData;
4546 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4548 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4549 MonoAotModule *aot_module = (MonoAotModule*)value;
4551 if (amodule_contains_code_addr (aot_module, data->addr))
4552 data->module = aot_module;
4555 static inline MonoAotModule*
4556 find_aot_module (guint8 *code)
4558 FindAotModuleUserData user_data;
4563 /* Reading these need no locking */
4564 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4567 user_data.addr = code;
4568 user_data.module = NULL;
4571 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4574 return user_data.module;
4578 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4580 MonoAotModule *amodule;
4583 * Since AOT code is only used in the root domain,
4584 * mono_domain_get () != mono_get_root_domain () means the calling method
4585 * is AppDomain:InvokeInDomain, so this is the same check as in
4586 * mono_method_same_domain () but without loading the metadata for the method.
4588 if (mono_domain_get () == mono_get_root_domain ()) {
4590 amodule = find_aot_module (code);
4594 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4599 * mono_aot_plt_resolve:
4601 * This function is called by the entries in the PLT to resolve the actual method that
4602 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4603 * Returns NULL if the something cannot be loaded.
4606 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4608 #ifdef MONO_ARCH_AOT_SUPPORTED
4609 guint8 *p, *target, *plt_entry;
4611 MonoAotModule *module = (MonoAotModule*)aot_module;
4612 gboolean res, no_ftnptr = FALSE;
4614 gboolean using_gsharedvt = FALSE;
4616 mono_error_init (error);
4618 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4620 p = &module->blob [plt_info_offset];
4622 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4624 mp = mono_mempool_new ();
4625 res = decode_patch (module, mp, &ji, p, &p);
4628 mono_mempool_destroy (mp);
4632 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4633 using_gsharedvt = TRUE;
4637 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4638 * it would create a trampoline, and we don't need that.
4639 * We could do this only if the method does not need the special handling
4640 * in mono_magic_trampoline ().
4642 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) &&
4643 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4644 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4645 if (!mono_error_ok (error)) {
4646 mono_mempool_destroy (mp);
4651 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4652 if (!mono_error_ok (error)) {
4653 mono_mempool_destroy (mp);
4659 * The trampoline expects us to return a function descriptor on platforms which use
4660 * it, but resolve_patch_target returns a direct function pointer for some type of
4661 * patches, so have to translate between the two.
4662 * FIXME: Clean this up, but how ?
4664 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) {
4665 /* These should already have a function descriptor */
4666 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4667 /* Our function descriptors have a 0 environment, gcc created ones don't */
4668 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4669 g_assert (((gpointer*)target) [2] == 0);
4672 } else if (!no_ftnptr) {
4673 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4674 g_assert (((gpointer*)target) [2] != 0);
4676 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4679 mono_mempool_destroy (mp);
4681 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4682 plt_entry = mono_aot_get_plt_entry (code);
4683 g_assert (plt_entry);
4684 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4688 g_assert_not_reached ();
4696 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4697 * method in the module is loaded to avoid committing memory by writing to it.
4698 * LOCKING: Assumes the AMODULE lock is held.
4701 init_plt (MonoAotModule *amodule)
4706 if (amodule->plt_inited)
4709 if (amodule->info.plt_size <= 1) {
4710 amodule->plt_inited = TRUE;
4714 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4717 * Initialize the PLT entries in the GOT to point to the default targets.
4720 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4721 for (i = 1; i < amodule->info.plt_size; ++i)
4722 /* All the default entries point to the AOT trampoline */
4723 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4725 amodule->plt_inited = TRUE;
4729 * mono_aot_get_plt_entry:
4731 * Return the address of the PLT entry called by the code at CODE if exists.
4734 mono_aot_get_plt_entry (guint8 *code)
4736 MonoAotModule *amodule = find_aot_module (code);
4737 guint8 *target = NULL;
4743 if (is_thumb_code (amodule, code - 4))
4744 return mono_arm_get_thumb_plt_entry (code);
4747 #ifdef MONO_ARCH_AOT_SUPPORTED
4748 target = mono_arch_get_call_target (code);
4750 g_assert_not_reached ();
4754 while (target != NULL) {
4755 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4758 // Add 4 since mono_arch_get_call_target assumes we're passing
4759 // the instruction after the actual branch instruction.
4760 target = mono_arch_get_call_target (target + 4);
4765 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4773 * mono_aot_get_plt_info_offset:
4775 * Return the PLT info offset belonging to the plt entry called by CODE.
4778 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4780 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4782 g_assert (plt_entry);
4784 /* The offset is embedded inside the code after the plt entry */
4785 #ifdef MONO_ARCH_AOT_SUPPORTED
4786 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4788 g_assert_not_reached ();
4794 mono_create_ftnptr_malloc (guint8 *code)
4796 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4797 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4799 ftnptr->code = code;
4810 * mono_aot_register_jit_icall:
4812 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4813 * be called from mono_arch_init () during startup.
4816 mono_aot_register_jit_icall (const char *name, gpointer addr)
4818 /* No need for locking */
4819 if (!aot_jit_icall_hash)
4820 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4821 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4825 * load_function_full:
4827 * Load the function named NAME from the aot image.
4830 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4834 int n_patches, pindex;
4837 guint32 info_offset;
4841 symbol = g_strdup_printf ("%s", name);
4842 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4845 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4847 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4851 symbol = g_strdup_printf ("%s_p", name);
4852 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4855 /* Nothing to patch */
4858 info_offset = *(guint32*)p;
4860 MonoTrampInfo *tinfo;
4861 guint32 code_size, uw_info_len, uw_offset;
4863 /* Construct a MonoTrampInfo from the data in the AOT image */
4865 p += sizeof (guint32);
4866 code_size = *(guint32*)p;
4867 p += sizeof (guint32);
4868 uw_offset = *(guint32*)p;
4869 uw_info = amodule->unwind_info + uw_offset;
4870 uw_info_len = decode_value (uw_info, &uw_info);
4872 tinfo = g_new0 (MonoTrampInfo, 1);
4873 tinfo->code = (guint8 *)code;
4874 tinfo->code_size = code_size;
4875 tinfo->uw_info = uw_info;
4876 tinfo->uw_info_len = uw_info_len;
4881 p = amodule->blob + info_offset;
4883 /* Similar to mono_aot_load_method () */
4885 n_patches = decode_value (p, &p);
4888 MonoJumpInfo *patches;
4891 mp = mono_mempool_new ();
4893 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4896 for (pindex = 0; pindex < n_patches; ++pindex) {
4897 MonoJumpInfo *ji = &patches [pindex];
4901 if (amodule->got [got_slots [pindex]])
4905 * When this code is executed, the runtime may not be initalized yet, so
4906 * resolve the patch info by hand.
4908 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4909 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4910 target = mono_get_lmf_addr;
4911 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
4912 target = mono_thread_force_interruption_checkpoint_noraise;
4913 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
4914 target = mono_interruption_checkpoint_from_trampoline;
4915 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
4916 target = mono_exception_from_token;
4917 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
4918 target = mono_get_throw_exception ();
4919 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
4920 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
4921 target = (gpointer)mono_get_trampoline_func (tramp_type2);
4922 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
4923 /* atoll is needed because the the offset is unsigned */
4927 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
4928 g_assert (res == 1);
4929 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4930 target = mono_create_ftnptr_malloc ((guint8 *)target);
4931 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
4932 target = mono_thread_get_and_clear_pending_exception;
4933 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
4934 target = debugger_agent_single_step_from_context;
4935 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
4936 target = debugger_agent_breakpoint_from_context;
4937 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
4938 target = mono_get_throw_exception_addr ();
4939 } else if (strstr (ji->data.name, "generic_trampoline_")) {
4940 target = mono_aot_get_trampoline (ji->data.name);
4941 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
4942 /* Registered by mono_arch_init () */
4943 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
4945 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
4946 g_assert_not_reached ();
4950 /* Hopefully the code doesn't have patches which need method or
4953 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
4954 mono_error_assert_ok (&error);
4958 amodule->got [got_slots [pindex]] = target;
4963 mono_mempool_destroy (mp);
4970 load_function (MonoAotModule *amodule, const char *name)
4972 return load_function_full (amodule, name, NULL);
4975 static MonoAotModule*
4976 get_mscorlib_aot_module (void)
4979 MonoAotModule *amodule;
4981 image = mono_defaults.corlib;
4983 amodule = (MonoAotModule *)image->aot_module;
4985 amodule = mscorlib_aot_module;
4991 no_trampolines (void)
4993 g_assert_not_reached ();
4997 * Return the trampoline identified by NAME from the mscorlib AOT file.
4998 * On ppc64, this returns a function descriptor.
5001 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5003 MonoAotModule *amodule = get_mscorlib_aot_module ();
5005 if (mono_llvm_only) {
5007 return no_trampolines;
5010 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5014 mono_aot_get_trampoline (const char *name)
5016 MonoTrampInfo *out_tinfo;
5019 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5020 mono_tramp_info_register (out_tinfo, NULL);
5026 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5028 gpointer symbol_addr;
5029 guint32 uw_offset, uw_info_len;
5032 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5037 uw_offset = *(guint32*)symbol_addr;
5038 uw_info = amodule->unwind_info + uw_offset;
5039 uw_info_len = decode_value (uw_info, &uw_info);
5041 info->uw_info = uw_info;
5042 info->uw_info_len = uw_info_len;
5044 /* If successful return the address of the following data */
5045 return (guint32*)symbol_addr + 1;
5049 #include <mach/mach.h>
5051 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5054 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5056 char symbol_name [128];
5058 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5059 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5060 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5061 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5062 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5063 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5064 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5065 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5067 g_assert_not_reached ();
5069 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5072 static unsigned char*
5073 get_new_trampoline_from_page (int tramp_type)
5075 MonoAotModule *amodule;
5077 TrampolinePage *page;
5080 vm_address_t addr, taddr;
5082 vm_prot_t prot, max_prot;
5083 int psize, specific_trampoline_size;
5084 unsigned char *code;
5086 specific_trampoline_size = 2 * sizeof (gpointer);
5088 mono_aot_page_lock ();
5089 page = trampoline_pages [tramp_type];
5090 if (page && page->trampolines < page->trampolines_end) {
5091 code = page->trampolines;
5092 page->trampolines += specific_trampoline_size;
5093 mono_aot_page_unlock ();
5096 mono_aot_page_unlock ();
5097 /* the trampoline template page is in the mscorlib module */
5098 image = mono_defaults.corlib;
5101 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5103 amodule = image->aot_module;
5106 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5107 tpage = load_function (amodule, "specific_trampolines_page");
5108 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5109 tpage = load_function (amodule, "rgctx_trampolines_page");
5110 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5111 tpage = load_function (amodule, "imt_trampolines_page");
5112 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5113 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5115 g_error ("Incorrect tramp type for trampolines page");
5117 /*g_warning ("loaded trampolines page at %x", tpage);*/
5119 /* avoid the unlikely case of looping forever */
5122 while (page == NULL && count-- > 0) {
5123 MonoTrampInfo *gen_info, *sp_info;
5126 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5127 * while the second will contain the trampolines.
5129 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5130 if (ret != KERN_SUCCESS) {
5131 g_error ("Cannot allocate memory for trampolines: %d", ret);
5134 /*g_warning ("allocated trampoline double page at %x", addr);*/
5135 /* replace the second page with a remapped trampoline page */
5136 taddr = addr + psize;
5137 vm_deallocate (mach_task_self (), taddr, psize);
5138 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5139 if (ret != KERN_SUCCESS) {
5140 /* someone else got the page, try again */
5141 vm_deallocate (mach_task_self (), addr, psize);
5144 /*g_warning ("remapped trampoline page at %x", taddr);*/
5146 mono_aot_page_lock ();
5147 page = trampoline_pages [tramp_type];
5148 /* some other thread already allocated, so use that to avoid wasting memory */
5149 if (page && page->trampolines < page->trampolines_end) {
5150 code = page->trampolines;
5151 page->trampolines += specific_trampoline_size;
5152 mono_aot_page_unlock ();
5153 vm_deallocate (mach_task_self (), addr, psize);
5154 vm_deallocate (mach_task_self (), taddr, psize);
5157 page = (TrampolinePage*)addr;
5158 page->next = trampoline_pages [tramp_type];
5159 trampoline_pages [tramp_type] = page;
5160 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5161 page->trampolines_end = (void*)(taddr + psize - 64);
5162 code = page->trampolines;
5163 page->trampolines += specific_trampoline_size;
5164 mono_aot_page_unlock ();
5166 /* Register the generic part at the beggining of the trampoline page */
5167 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5168 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5169 mono_tramp_info_register (gen_info, NULL);
5172 * Registering each specific trampoline produces a lot of
5173 * MonoJitInfo structures. Jump trampolines are also registered
5176 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5177 /* Register the rest of the page as a single trampoline */
5178 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5179 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5180 mono_tramp_info_register (sp_info, NULL);
5184 g_error ("Cannot allocate more trampoline pages: %d", ret);
5189 static unsigned char*
5190 get_new_trampoline_from_page (int tramp_type)
5192 g_error ("Page trampolines not supported.");
5199 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5204 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5206 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5209 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5215 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5220 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5222 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5225 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5231 get_new_imt_trampoline_from_page (gpointer arg)
5236 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5238 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5240 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5246 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5251 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5253 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5256 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5260 /* Return a given kind of trampoline */
5261 /* FIXME set unwind info for these trampolines */
5263 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5266 MonoAotModule *amodule = get_mscorlib_aot_module ();
5267 int index, tramp_size;
5269 /* Currently, we keep all trampolines in the mscorlib AOT image */
5270 image = mono_defaults.corlib;
5272 *out_amodule = amodule;
5277 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5279 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5281 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5282 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5283 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5285 index = amodule->trampoline_index [tramp_type] ++;
5289 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5291 tramp_size = amodule->info.trampoline_size [tramp_type];
5294 *out_tramp_size = tramp_size;
5296 return amodule->trampolines [tramp_type] + (index * tramp_size);
5300 no_specific_trampoline (void)
5302 g_assert_not_reached ();
5306 * Return a specific trampoline from the AOT file.
5309 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5311 MonoAotModule *amodule;
5312 guint32 got_offset, tramp_size;
5313 guint8 *code, *tramp;
5314 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5315 static gboolean inited;
5316 static guint32 num_trampolines;
5318 if (mono_llvm_only) {
5320 return no_specific_trampoline;
5327 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5336 if (!generic_trampolines [tramp_type]) {
5339 symbol = mono_get_generic_trampoline_name (tramp_type);
5340 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5344 tramp = (guint8 *)generic_trampolines [tramp_type];
5347 if (USE_PAGE_TRAMPOLINES) {
5348 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5351 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5353 amodule->got [got_offset] = tramp;
5354 amodule->got [got_offset + 1] = arg1;
5358 *code_len = tramp_size;
5364 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5366 MonoAotModule *amodule;
5370 if (USE_PAGE_TRAMPOLINES) {
5371 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5373 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5375 amodule->got [got_offset] = ctx;
5376 amodule->got [got_offset + 1] = addr;
5379 /* The caller expects an ftnptr */
5380 return mono_create_ftnptr (mono_domain_get (), code);
5384 mono_aot_get_unbox_trampoline (MonoMethod *method)
5386 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5387 MonoAotModule *amodule;
5389 guint32 *ut, *ut_end, *entry;
5390 int low, high, entry_index = 0;
5391 gpointer symbol_addr;
5392 MonoTrampInfo *tinfo;
5394 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5395 method_index = find_aot_method (method, &amodule);
5396 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5397 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5398 method_index = find_aot_method (shared, &amodule);
5400 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5401 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5402 method_index = find_aot_method (shared, &amodule);
5404 g_assert (method_index != 0xffffff);
5406 amodule = (MonoAotModule *)method->klass->image->aot_module;
5410 if (amodule->info.llvm_get_unbox_tramp) {
5411 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5412 code = get_tramp (method_index);
5418 ut = amodule->unbox_trampolines;
5419 ut_end = amodule->unbox_trampolines_end;
5421 /* Do a binary search in the sorted table */
5424 high = (ut_end - ut);
5425 while (low < high) {
5426 entry_index = (low + high) / 2;
5427 entry = &ut [entry_index];
5428 if (entry [0] < method_index) {
5429 low = entry_index + 1;
5430 } else if (entry [0] > method_index) {
5437 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5440 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5442 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5444 mono_tramp_info_free (tinfo);
5448 tinfo->code_size = *(guint32*)symbol_addr;
5449 mono_tramp_info_register (tinfo, NULL);
5451 /* The caller expects an ftnptr */
5452 return mono_create_ftnptr (mono_domain_get (), code);
5456 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5460 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5461 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5462 static int count = 0;
5465 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5466 static gpointer addr;
5470 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5473 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5474 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5475 info [0] = GUINT_TO_POINTER (slot);
5476 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5477 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5478 return mono_create_ftnptr (mono_domain_get (), code);
5481 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5482 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5484 /* The caller expects an ftnptr */
5485 return mono_create_ftnptr (mono_domain_get (), code);
5491 g_assert_not_reached ();
5495 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5500 int i, index, real_count;
5501 MonoAotModule *amodule;
5504 return no_imt_thunk;
5507 for (i = 0; i < count; ++i) {
5508 MonoIMTCheckItem *item = imt_entries [i];
5510 if (item->is_equals)
5514 /* Save the entries into an array */
5515 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5517 for (i = 0; i < count; ++i) {
5518 MonoIMTCheckItem *item = imt_entries [i];
5520 if (!item->is_equals)
5523 g_assert (item->key);
5525 buf [(index * 2)] = item->key;
5526 if (item->has_target_code) {
5527 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5528 *p = item->value.target_code;
5529 buf [(index * 2) + 1] = p;
5531 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5535 buf [(index * 2)] = NULL;
5536 buf [(index * 2) + 1] = fail_tramp;
5538 if (USE_PAGE_TRAMPOLINES) {
5539 code = get_new_imt_trampoline_from_page (buf);
5541 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5543 amodule->got [got_offset] = buf;
5550 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5552 MonoAotModule *amodule;
5556 if (USE_PAGE_TRAMPOLINES) {
5557 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5559 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5561 amodule->got [got_offset] = arg;
5562 amodule->got [got_offset + 1] = addr;
5565 /* The caller expects an ftnptr */
5566 return mono_create_ftnptr (mono_domain_get (), code);
5570 * mono_aot_set_make_unreadable:
5572 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5573 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5576 mono_aot_set_make_unreadable (gboolean unreadable)
5580 make_unreadable = unreadable;
5582 if (make_unreadable && !inited) {
5583 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5588 MonoAotModule *module;
5593 find_map (gpointer key, gpointer value, gpointer user_data)
5595 MonoAotModule *module = (MonoAotModule*)value;
5596 FindMapUserData *data = (FindMapUserData*)user_data;
5599 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5600 data->module = module;
5603 static MonoAotModule*
5604 find_module_for_addr (void *ptr)
5606 FindMapUserData data;
5608 if (!make_unreadable)
5612 data.ptr = (guint8*)ptr;
5615 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5622 * mono_aot_is_pagefault:
5624 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5625 * within memory allocated by this module.
5628 mono_aot_is_pagefault (void *ptr)
5630 if (!make_unreadable)
5634 * Not signal safe, but SIGSEGV's are synchronous, and
5635 * this is only turned on by a MONO_DEBUG option.
5637 return find_module_for_addr (ptr) != NULL;
5641 * mono_aot_handle_pagefault:
5643 * Handle a pagefault caused by an unreadable page by making it readable again.
5646 mono_aot_handle_pagefault (void *ptr)
5648 #ifndef PLATFORM_WIN32
5649 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5653 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5654 g_assert (res == 0);
5665 mono_aot_init (void)
5670 mono_aot_cleanup (void)
5675 mono_aot_find_method_index (MonoMethod *method)
5677 g_assert_not_reached ();
5682 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5687 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5692 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5697 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5702 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5708 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5714 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5720 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5726 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5732 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5738 mono_aot_get_plt_entry (guint8 *code)
5744 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5750 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5755 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5761 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5763 g_assert_not_reached ();
5769 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5771 g_assert_not_reached ();
5776 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5778 g_assert_not_reached ();
5783 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5785 g_assert_not_reached ();
5790 mono_aot_get_trampoline (const char *name)
5792 g_assert_not_reached ();
5797 mono_aot_get_unbox_trampoline (MonoMethod *method)
5799 g_assert_not_reached ();
5804 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5806 g_assert_not_reached ();
5811 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5813 g_assert_not_reached ();
5818 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5820 g_assert_not_reached ();
5825 mono_aot_set_make_unreadable (gboolean unreadable)
5830 mono_aot_is_pagefault (void *ptr)
5836 mono_aot_handle_pagefault (void *ptr)
5841 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5843 g_assert_not_reached ();
5848 mono_aot_register_jit_icall (const char *name, gpointer addr)