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, MonoError *error);
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: {
467 MonoGenericContext ctx;
470 gclass = decode_klass_ref (module, p, &p);
473 g_assert (gclass->generic_container);
475 memset (&ctx, 0, sizeof (ctx));
476 ctx.class_inst = decode_generic_inst (module, p, &p);
479 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, &error);
480 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
481 klass = mono_class_from_mono_type (type);
482 mono_metadata_free_type (type);
485 case MONO_AOT_TYPEREF_VAR: {
487 MonoGenericContainer *container = NULL;
488 gboolean has_constraint = decode_value (p, &p);
490 if (has_constraint) {
491 MonoClass *par_klass;
492 MonoType *gshared_constraint;
494 gshared_constraint = decode_type (module, p, &p);
495 if (!gshared_constraint)
498 par_klass = decode_klass_ref (module, p, &p);
502 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
503 klass = mono_class_from_mono_type (t);
505 int type = decode_value (p, &p);
506 int num = decode_value (p, &p);
507 gboolean is_not_anonymous = decode_value (p, &p);
509 if (is_not_anonymous) {
510 gboolean is_method = decode_value (p, &p);
513 MonoMethod *method_def;
514 g_assert (type == MONO_TYPE_MVAR);
515 method_def = decode_resolve_method_ref (module, p, &p);
519 container = mono_method_get_generic_container (method_def);
521 MonoClass *class_def;
522 g_assert (type == MONO_TYPE_VAR);
523 class_def = decode_klass_ref (module, p, &p);
527 container = class_def->generic_container;
530 // We didn't decode is_method, so we have to infer it from type enum.
531 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
534 t = g_new0 (MonoType, 1);
535 t->type = (MonoTypeEnum)type;
536 if (is_not_anonymous) {
537 t->data.generic_param = mono_generic_container_get_param (container, num);
540 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
541 par->owner = container;
543 t->data.generic_param = par;
544 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
546 // FIXME: Maybe use types directly to avoid
547 // the overhead of creating MonoClass-es
548 klass = mono_class_from_mono_type (t);
554 case MONO_AOT_TYPEREF_ARRAY:
556 rank = decode_value (p, &p);
557 eklass = decode_klass_ref (module, p, &p);
558 klass = mono_array_class_get (eklass, rank);
560 case MONO_AOT_TYPEREF_PTR: {
563 t = decode_type (module, p, &p);
566 klass = mono_class_from_mono_type (t);
570 case MONO_AOT_TYPEREF_BLOB_INDEX: {
571 guint32 offset = decode_value (p, &p);
574 p2 = module->blob + offset;
575 klass = decode_klass_ref (module, p2, &p2);
579 g_assert_not_reached ();
582 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
587 static MonoClassField*
588 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
590 MonoClass *klass = decode_klass_ref (module, buf, &buf);
597 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
601 return mono_class_get_field (klass, token);
605 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
609 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
614 t = (MonoType *)g_malloc0 (sizeof (MonoType));
617 if (*p == MONO_TYPE_PINNED) {
620 } else if (*p == MONO_TYPE_BYREF) {
628 t->type = (MonoTypeEnum)*p;
633 case MONO_TYPE_BOOLEAN:
647 case MONO_TYPE_STRING:
648 case MONO_TYPE_OBJECT:
649 case MONO_TYPE_TYPEDBYREF:
651 case MONO_TYPE_VALUETYPE:
652 case MONO_TYPE_CLASS:
653 t->data.klass = decode_klass_ref (module, p, &p);
655 case MONO_TYPE_SZARRAY:
656 t->data.klass = decode_klass_ref (module, p, &p);
662 t->data.type = decode_type (module, p, &p);
664 case MONO_TYPE_GENERICINST: {
667 MonoGenericContext ctx;
671 gclass = decode_klass_ref (module, p, &p);
674 g_assert (gclass->generic_container);
676 memset (&ctx, 0, sizeof (ctx));
677 ctx.class_inst = decode_generic_inst (module, p, &p);
680 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, &error);
681 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
683 klass = mono_class_from_mono_type (type);
684 t->data.generic_class = klass->generic_class;
687 case MONO_TYPE_ARRAY: {
688 MonoArrayType *array;
691 // FIXME: memory management
692 array = g_new0 (MonoArrayType, 1);
693 array->eklass = decode_klass_ref (module, p, &p);
696 array->rank = decode_value (p, &p);
697 array->numsizes = decode_value (p, &p);
700 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
701 for (i = 0; i < array->numsizes; ++i)
702 array->sizes [i] = decode_value (p, &p);
704 array->numlobounds = decode_value (p, &p);
705 if (array->numlobounds)
706 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
707 for (i = 0; i < array->numlobounds; ++i)
708 array->lobounds [i] = decode_value (p, &p);
709 t->data.array = array;
713 case MONO_TYPE_MVAR: {
714 MonoClass *klass = decode_klass_ref (module, p, &p);
717 t->data.generic_param = klass->byval_arg.data.generic_param;
721 g_assert_not_reached ();
729 // FIXME: Error handling, memory management
731 static MonoMethodSignature*
732 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
734 MonoMethodSignature *sig;
736 int i, gen_param_count = 0, param_count, call_conv;
738 gboolean hasthis, explicit_this, has_gen_params;
742 has_gen_params = (flags & 0x10) != 0;
743 hasthis = (flags & 0x20) != 0;
744 explicit_this = (flags & 0x40) != 0;
745 call_conv = flags & 0x0F;
748 gen_param_count = decode_value (p, &p);
749 param_count = decode_value (p, &p);
750 if (target && param_count != target->param_count)
752 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
753 sig->param_count = param_count;
754 sig->sentinelpos = -1;
755 sig->hasthis = hasthis;
756 sig->explicit_this = explicit_this;
757 sig->call_convention = call_conv;
758 sig->generic_param_count = gen_param_count;
759 sig->ret = decode_type (module, p, &p);
760 for (i = 0; i < param_count; ++i) {
761 if (*p == MONO_TYPE_SENTINEL) {
762 g_assert (sig->call_convention == MONO_CALL_VARARG);
763 sig->sentinelpos = i;
766 sig->params [i] = decode_type (module, p, &p);
769 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
770 sig->sentinelpos = sig->param_count;
777 static MonoMethodSignature*
778 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
780 return decode_signature_with_target (module, NULL, buf, endbuf);
784 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
786 MonoMethodSignature *sig;
790 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
791 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
797 /* Stores information returned by decode_method_ref () */
802 gboolean no_aot_trampoline;
806 * decode_method_ref_with_target:
808 * Decode a method reference, storing the image/token into a MethodRef structure.
809 * This avoids loading metadata for the method if the caller does not need it. If the method has
810 * no token, then it is loaded from metadata and ref->method is set to the method instance.
811 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
812 * couldn't resolve to TARGET, and return FALSE.
813 * There are some kinds of method references which only support a non-null TARGET.
814 * This means that its not possible to decode this into a method, only to check
815 * that the method reference matches a given method. This is normally not a problem
816 * as these wrappers only occur in the extra_methods table, where we already have
817 * a method we want to lookup.
820 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
822 guint32 image_index, value;
823 MonoImage *image = NULL;
826 memset (ref, 0, sizeof (MethodRef));
828 value = decode_value (p, &p);
829 image_index = value >> 24;
831 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
832 ref->no_aot_trampoline = TRUE;
833 value = decode_value (p, &p);
834 image_index = value >> 24;
837 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
838 if (target && target->wrapper_type)
842 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
844 guint32 wrapper_type;
846 wrapper_type = decode_value (p, &p);
848 if (target && target->wrapper_type != wrapper_type)
852 image = mono_defaults.corlib;
854 switch (wrapper_type) {
855 #ifndef DISABLE_REMOTING
856 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
857 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
861 mono_class_init (m->klass);
865 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
868 case MONO_WRAPPER_PROXY_ISINST: {
869 MonoClass *klass = decode_klass_ref (module, p, &p);
872 ref->method = mono_marshal_get_proxy_cancast (klass);
875 case MONO_WRAPPER_LDFLD:
876 case MONO_WRAPPER_LDFLDA:
877 case MONO_WRAPPER_STFLD:
878 case MONO_WRAPPER_ISINST: {
879 MonoClass *klass = decode_klass_ref (module, p, &p);
882 if (wrapper_type == MONO_WRAPPER_LDFLD)
883 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
884 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
885 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
886 else if (wrapper_type == MONO_WRAPPER_STFLD)
887 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
888 else if (wrapper_type == MONO_WRAPPER_ISINST)
889 ref->method = mono_marshal_get_isinst (klass);
891 g_assert_not_reached ();
894 case MONO_WRAPPER_LDFLD_REMOTE:
895 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
897 case MONO_WRAPPER_STFLD_REMOTE:
898 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
901 case MONO_WRAPPER_ALLOC: {
902 int atype = decode_value (p, &p);
904 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
906 g_error ("Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
909 case MONO_WRAPPER_WRITE_BARRIER: {
910 ref->method = mono_gc_get_write_barrier ();
913 case MONO_WRAPPER_STELEMREF: {
914 int subtype = decode_value (p, &p);
916 if (subtype == WRAPPER_SUBTYPE_NONE) {
917 ref->method = mono_marshal_get_stelemref ();
918 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
921 kind = decode_value (p, &p);
923 /* Can't decode this */
926 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
927 info = mono_marshal_get_wrapper_info (target);
930 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
931 ref->method = target;
938 g_assert_not_reached ();
942 case MONO_WRAPPER_SYNCHRONIZED: {
943 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
947 ref->method = mono_marshal_get_synchronized_wrapper (m);
950 case MONO_WRAPPER_UNKNOWN: {
951 int subtype = decode_value (p, &p);
953 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
954 MonoClass *klass = decode_klass_ref (module, p, &p);
961 if (klass != target->klass)
964 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
965 if (strcmp (target->name, "PtrToStructure"))
967 ref->method = mono_marshal_get_ptr_to_struct (klass);
969 if (strcmp (target->name, "StructureToPtr"))
971 ref->method = mono_marshal_get_struct_to_ptr (klass);
973 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
974 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
978 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
979 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
980 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
984 ref->method = mono_marshal_get_array_accessor_wrapper (m);
985 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
986 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
987 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
988 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
989 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
990 MonoMethodSignature *sig = decode_signature (module, p, &p);
993 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
994 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
995 MonoMethodSignature *sig = decode_signature (module, p, &p);
998 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1000 g_assert_not_reached ();
1004 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1005 int subtype = decode_value (p, &p);
1007 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1008 int rank = decode_value (p, &p);
1009 int elem_size = decode_value (p, &p);
1011 ref->method = mono_marshal_get_array_address (rank, elem_size);
1012 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1015 m = decode_resolve_method_ref (module, p, &p);
1021 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1023 info = mono_marshal_get_wrapper_info (target);
1024 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1025 ref->method = target;
1031 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1033 int subtype = decode_value (p, &p);
1036 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1041 if (strcmp (target->name, name) != 0)
1043 ref->method = target;
1045 m = decode_resolve_method_ref (module, p, &p);
1050 /* This should only happen when looking for an extra method */
1053 if (mono_marshal_method_from_wrapper (target) == m)
1054 ref->method = target;
1060 case MONO_WRAPPER_CASTCLASS: {
1061 int subtype = decode_value (p, &p);
1063 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1064 ref->method = mono_marshal_get_castclass_with_cache ();
1065 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1066 ref->method = mono_marshal_get_isinst_with_cache ();
1068 g_assert_not_reached ();
1071 case MONO_WRAPPER_RUNTIME_INVOKE: {
1072 int subtype = decode_value (p, &p);
1077 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1078 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1080 ref->method = target;
1081 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1082 /* Direct wrapper */
1083 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1087 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1088 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1089 /* Virtual direct wrapper */
1090 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1094 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1096 MonoMethodSignature *sig;
1098 sig = decode_signature_with_target (module, NULL, p, &p);
1099 info = mono_marshal_get_wrapper_info (target);
1102 if (info->subtype != subtype)
1104 g_assert (info->d.runtime_invoke.sig);
1105 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1106 ref->method = target;
1112 case MONO_WRAPPER_DELEGATE_INVOKE:
1113 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1114 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1115 gboolean is_inflated = decode_value (p, &p);
1116 WrapperSubtype subtype;
1120 MonoMethod *invoke, *wrapper;
1122 klass = decode_klass_ref (module, p, &p);
1126 switch (wrapper_type) {
1127 case MONO_WRAPPER_DELEGATE_INVOKE:
1128 invoke = mono_get_delegate_invoke (klass);
1129 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1131 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1132 invoke = mono_get_delegate_begin_invoke (klass);
1133 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1135 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1136 invoke = mono_get_delegate_end_invoke (klass);
1137 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1140 g_assert_not_reached ();
1145 * Due to the way mini_get_shared_method () works, we could end up with
1146 * multiple copies of the same wrapper.
1148 if (wrapper->klass != target->klass)
1150 ref->method = target;
1152 ref->method = wrapper;
1156 * These wrappers are associated with a signature, not with a method.
1157 * Since we can't decode them into methods, they need a target method.
1162 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1163 subtype = (WrapperSubtype)decode_value (p, &p);
1164 info = mono_marshal_get_wrapper_info (target);
1166 if (info->subtype != subtype)
1169 if (subtype != WRAPPER_SUBTYPE_NONE)
1173 if (sig_matches_target (module, target, p, &p))
1174 ref->method = target;
1180 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1184 m = decode_resolve_method_ref (module, p, &p);
1187 klass = decode_klass_ref (module, p, &p);
1190 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1194 g_assert_not_reached ();
1196 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1197 image_index = decode_value (p, &p);
1198 ref->token = decode_value (p, &p);
1200 image = load_image (module, image_index, TRUE);
1203 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1206 MonoGenericContext ctx;
1209 * These methods do not have a token which resolves them, so we
1210 * resolve them immediately.
1212 klass = decode_klass_ref (module, p, &p);
1216 if (target && target->klass != klass)
1219 image_index = decode_value (p, &p);
1220 ref->token = decode_value (p, &p);
1222 image = load_image (module, image_index, TRUE);
1226 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, &error);
1228 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1232 memset (&ctx, 0, sizeof (ctx));
1234 if (FALSE && klass->generic_class) {
1235 ctx.class_inst = klass->generic_class->context.class_inst;
1236 ctx.method_inst = NULL;
1238 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1240 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1243 memset (&ctx, 0, sizeof (ctx));
1245 if (!decode_generic_context (module, &ctx, p, &p))
1248 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1250 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1252 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1256 klass = decode_klass_ref (module, p, &p);
1259 method_type = decode_value (p, &p);
1260 switch (method_type) {
1262 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1265 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1268 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1271 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1274 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1277 g_assert_not_reached ();
1280 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1281 image_index = decode_value (p, &p);
1282 value = decode_value (p, &p);
1285 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1287 image = load_image (module, image_index, TRUE);
1300 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1302 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1306 * decode_resolve_method_ref_with_target:
1308 * Similar to decode_method_ref, but resolve and return the method itself.
1311 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1318 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1325 result = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
1327 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1332 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1334 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1337 #ifdef ENABLE_AOT_CACHE
1343 * - Add options for controlling the cache size
1344 * - Handle full cache by deleting old assemblies lru style
1345 * - Maybe add a threshold after an assembly is AOT compiled
1346 * - Add options for enabling this for specific main assemblies
1349 /* The cache directory */
1350 static char *cache_dir;
1352 /* The number of assemblies AOTed in this run */
1353 static int cache_count;
1355 /* Whenever to AOT in-process */
1356 static gboolean in_process;
1359 collect_assemblies (gpointer data, gpointer user_data)
1361 MonoAssembly *ass = data;
1362 GSList **l = user_data;
1364 *l = g_slist_prepend (*l, ass);
1367 #define SHA1_DIGEST_LENGTH 20
1370 * get_aot_config_hash:
1372 * Return a hash for all the version information an AOT module depends on.
1374 static G_GNUC_UNUSED char*
1375 get_aot_config_hash (MonoAssembly *assembly)
1378 GSList *l, *assembly_list = NULL;
1381 guint8 digest [SHA1_DIGEST_LENGTH];
1384 build_info = mono_get_runtime_build_info ();
1386 s = g_string_new (build_info);
1388 mono_assembly_foreach (collect_assemblies, &assembly_list);
1391 * The assembly list includes the current assembly as well, no need
1394 for (l = assembly_list; l; l = l->next) {
1395 MonoAssembly *ass = l->data;
1397 g_string_append (s, "_");
1398 g_string_append (s, ass->aname.name);
1399 g_string_append (s, "_");
1400 g_string_append (s, ass->image->guid);
1403 for (i = 0; i < s->len; ++i) {
1404 if (!isalnum (s->str [i]) && s->str [i] != '-')
1408 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1410 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1411 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1412 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1414 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1416 g_string_free (s, TRUE);
1422 aot_cache_init (void)
1426 enable_aot_cache = TRUE;
1431 * aot_cache_load_module:
1433 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1436 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1438 MonoAotCacheConfig *config;
1440 char *fname, *tmp2, *aot_options, *failure_fname;
1452 if (image_is_dynamic (assembly->image))
1455 /* Check in the list of assemblies enabled for aot caching */
1456 config = mono_get_aot_cache_config ();
1460 MonoDomain *domain = mono_domain_get ();
1461 MonoAssembly *entry_assembly = domain->entry_assembly;
1463 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1464 for (l = config->apps; l; l = l->next) {
1467 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1475 for (l = config->assemblies; l; l = l->next) {
1478 if (!strcmp (assembly->aname.name, n))
1488 home = g_get_home_dir ();
1491 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1492 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1493 g_mkdir_with_parents (cache_dir, 0777);
1497 * The same assembly can be used in multiple configurations, i.e. multiple
1498 * versions of the runtime, with multiple versions of dependent assemblies etc.
1499 * To handle this, we compute a version string containing all this information, hash it,
1500 * and use the hash as a filename suffix.
1502 hash = get_aot_config_hash (assembly);
1504 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1505 fname = g_build_filename (cache_dir, tmp2, NULL);
1509 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1510 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1513 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1517 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1519 * Can't AOT this during startup, so we AOT it when called later from
1520 * mono_aot_get_method ().
1524 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1526 /* Only AOT one assembly per run to avoid slowing down execution too much */
1527 if (cache_count > 0)
1531 /* Check for previous failure */
1532 failure_fname = g_strdup_printf ("%s.failure", fname);
1533 failure_file = fopen (failure_fname, "r");
1535 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1536 g_free (failure_fname);
1539 g_free (failure_fname);
1540 fclose (failure_file);
1543 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1546 * We need to invoke the AOT compiler here. There are multiple approaches:
1547 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1548 * its hard to make the new process load the same set of assemblies.
1549 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1551 * - fork a new process and do the work there.
1554 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1555 /* Maybe due this in another thread ? */
1556 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1558 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1559 failure_fname = g_strdup_printf ("%s.failure", fname);
1560 failure_file = fopen (failure_fname, "a+");
1561 fclose (failure_file);
1562 g_free (failure_fname);
1564 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1568 * - Avoid waiting for the aot process to finish ?
1569 * (less overhead, but multiple processes could aot the same assembly at the same time)
1578 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1579 logfile = fopen (logfile_name, "a+");
1580 g_free (logfile_name);
1582 dup2 (fileno (logfile), 1);
1583 dup2 (fileno (logfile), 2);
1585 aot_options = g_strdup_printf ("outfile=%s", fname);
1586 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1594 waitpid (pid, &exit_status, 0);
1595 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1596 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1598 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1602 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1610 aot_cache_init (void)
1615 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1623 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1627 guint16 *table, *entry;
1630 char *symbol = (char*)name;
1633 symbol = g_strdup_printf ("_%s", name);
1636 /* The first entry points to the hash */
1637 table = (guint16 *)globals [0];
1640 table_size = table [0];
1643 hash = mono_metadata_str_hash (symbol) % table_size;
1645 entry = &table [hash * 2];
1647 /* Search the hash for the index into the globals table */
1649 while (entry [0] != 0) {
1650 guint32 index = entry [0] - 1;
1651 guint32 next = entry [1];
1653 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1655 if (!strcmp (globals [index * 2], symbol)) {
1656 global_index = index;
1661 entry = &table [next * 2];
1667 if (global_index != -1)
1668 *value = globals [global_index * 2 + 1];
1675 char *err = mono_dl_symbol (module, name, value);
1683 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1685 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1687 find_symbol (amodule->sofile, amodule->globals, name, value);
1691 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1693 aot_data_load_func = load_func;
1694 aot_data_free_func = free_func;
1695 aot_data_func_user_data = user_data;
1698 /* Load the separate aot data file for ASSEMBLY */
1700 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1706 if (aot_data_load_func) {
1707 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1713 * Use <assembly name>.aotdata as the default implementation if no callback is given
1715 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1716 map = mono_file_map_open (filename);
1718 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1725 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1729 gboolean usable = TRUE;
1730 gboolean full_aot, safepoints;
1731 guint32 excluded_cpu_optimizations;
1733 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1734 msg = g_strdup_printf ("doesn't match assembly");
1738 build_info = mono_get_runtime_build_info ();
1739 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1740 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1743 g_free (build_info);
1745 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1747 if (mono_aot_only && !full_aot) {
1748 msg = g_strdup_printf ("not compiled with --aot=full");
1751 if (!mono_aot_only && full_aot) {
1752 msg = g_strdup_printf ("compiled with --aot=full");
1755 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1756 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1760 /* mono_arch_find_imt_method () requires this */
1761 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1762 msg = g_strdup_printf ("compiled against LLVM");
1765 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1766 msg = g_strdup_printf ("not compiled against LLVM");
1770 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1771 msg = g_strdup_printf ("not compiled for debugging");
1775 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1776 if (info->opts & excluded_cpu_optimizations) {
1777 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1781 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1782 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1786 if (info->gc_name_index != -1) {
1787 char *gc_name = (char*)&blob [info->gc_name_index];
1788 const char *current_gc_name = mono_gc_get_gc_name ();
1790 if (strcmp (current_gc_name, gc_name) != 0) {
1791 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1796 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1798 if (!safepoints && mono_threads_is_coop_enabled ()) {
1799 msg = g_strdup_printf ("not compiled with safepoints");
1808 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1811 get_call_table_entry (void *table, int index)
1813 #if defined(TARGET_ARM)
1818 ins_addr = (guint32*)table + index;
1820 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1822 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1823 return (char*)ins_addr + (offset * 2) + 8 + 1;
1825 offset = (((int)ins & 0xffffff) << 8) >> 8;
1826 return (char*)ins_addr + (offset * 4) + 8;
1828 #elif defined(TARGET_ARM64)
1829 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1830 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1831 /* The callee expects an ip which points after the call */
1832 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1834 g_assert_not_reached ();
1842 * Initialize the shared got entries for AMODULE.
1845 init_amodule_got (MonoAotModule *amodule)
1849 MonoJumpInfo *patches;
1850 guint32 got_offsets [128];
1854 /* These can't be initialized in load_aot_module () */
1855 if (amodule->shared_got [0] || amodule->got_initializing)
1858 amodule->got_initializing = TRUE;
1860 mp = mono_mempool_new ();
1861 npatches = amodule->info.nshared_got_entries;
1862 for (i = 0; i < npatches; ++i)
1863 got_offsets [i] = i;
1864 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1866 for (i = 0; i < npatches; ++i) {
1869 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1870 amodule->shared_got [i] = NULL;
1871 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1872 amodule->shared_got [i] = NULL;
1873 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1874 amodule->shared_got [i] = NULL;
1875 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1876 amodule->shared_got [i] = amodule->assembly->image;
1877 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1878 if (mono_defaults.corlib) {
1879 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1881 if (mscorlib_amodule)
1882 amodule->shared_got [i] = mscorlib_amodule->got;
1884 amodule->shared_got [i] = amodule->got;
1886 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1887 amodule->shared_got [i] = amodule;
1889 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1890 mono_error_assert_ok (&error);
1895 for (i = 0; i < npatches; ++i)
1896 amodule->got [i] = amodule->shared_got [i];
1898 if (amodule->llvm_got) {
1899 for (i = 0; i < npatches; ++i)
1900 amodule->llvm_got [i] = amodule->shared_got [i];
1903 mono_mempool_destroy (mp);
1907 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1910 MonoAotModule *amodule;
1912 gboolean usable = TRUE;
1913 char *version_symbol = NULL;
1915 gpointer *globals = NULL;
1916 MonoAotFileInfo *info = NULL;
1918 gboolean do_load_image = TRUE;
1919 int align_double, align_int64;
1920 guint8 *aot_data = NULL;
1922 if (mono_compile_aot)
1925 if (assembly->image->aot_module)
1927 * Already loaded. This can happen because the assembly loading code might invoke
1928 * the assembly load hooks multiple times for the same assembly.
1932 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1936 if (static_aot_modules)
1937 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1945 /* Statically linked AOT module */
1946 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1947 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1948 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1949 globals = (void **)info->globals;
1953 if (enable_aot_cache)
1954 sofile = aot_cache_load_module (assembly, &aot_name);
1957 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1959 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1962 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1965 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);
1966 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1968 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1975 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
1976 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1983 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1984 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1987 if (version_symbol) {
1988 /* Old file format */
1989 version = atoi (version_symbol);
1992 version = info->version;
1995 if (version != MONO_AOT_FILE_VERSION) {
1996 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2002 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2003 aot_data = open_aot_data (assembly, info, &handle);
2005 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2007 blob = (guint8 *)info->blob;
2010 usable = check_usable (assembly, info, blob, &msg);
2014 if (mono_aot_only) {
2015 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
2017 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
2022 mono_dl_close (sofile);
2023 assembly->image->aot_module = NULL;
2028 align_double = MONO_ABI_ALIGNOF (double);
2029 align_int64 = MONO_ABI_ALIGNOF (gint64);
2030 g_assert (info->double_align == align_double);
2031 g_assert (info->long_align == align_int64);
2032 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2034 amodule = g_new0 (MonoAotModule, 1);
2035 amodule->aot_name = aot_name;
2036 amodule->assembly = assembly;
2038 memcpy (&amodule->info, info, sizeof (*info));
2040 amodule->got = (void **)amodule->info.jit_got;
2041 amodule->llvm_got = (void **)amodule->info.llvm_got;
2042 amodule->globals = globals;
2043 amodule->sofile = sofile;
2044 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2045 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2046 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2048 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2049 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2050 amodule->tables [i] = aot_data + info->table_offsets [i];
2053 mono_os_mutex_init_recursive (&amodule->mutex);
2055 /* Read image table */
2057 guint32 table_len, i;
2060 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2061 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2063 table = (char *)info->image_table;
2066 table_len = *(guint32*)table;
2067 table += sizeof (guint32);
2068 amodule->image_table = g_new0 (MonoImage*, table_len);
2069 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2070 amodule->image_guids = g_new0 (char*, table_len);
2071 amodule->image_table_len = table_len;
2072 for (i = 0; i < table_len; ++i) {
2073 MonoAssemblyName *aname = &(amodule->image_names [i]);
2075 aname->name = g_strdup (table);
2076 table += strlen (table) + 1;
2077 amodule->image_guids [i] = g_strdup (table);
2078 table += strlen (table) + 1;
2080 aname->culture = g_strdup (table);
2081 table += strlen (table) + 1;
2082 memcpy (aname->public_key_token, table, strlen (table) + 1);
2083 table += strlen (table) + 1;
2085 table = (char *)ALIGN_PTR_TO (table, 8);
2086 aname->flags = *(guint32*)table;
2088 aname->major = *(guint32*)table;
2090 aname->minor = *(guint32*)table;
2092 aname->build = *(guint32*)table;
2094 aname->revision = *(guint32*)table;
2099 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2100 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2101 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2102 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2103 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2104 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2105 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2106 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2107 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2108 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2109 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2110 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2112 amodule->blob = info->blob;
2113 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2114 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2115 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2116 amodule->class_name_table = (guint16 *)info->class_name_table;
2117 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2118 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2119 amodule->got_info_offsets = info->got_info_offsets;
2120 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2122 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2123 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2124 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2125 amodule->unwind_info = (guint8 *)info->unwind_info;
2126 amodule->mem_begin = amodule->jit_code_start;
2127 amodule->mem_end = (guint8 *)info->mem_end;
2128 amodule->plt = (guint8 *)info->plt;
2129 amodule->plt_end = (guint8 *)info->plt_end;
2130 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2131 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2132 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2133 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2134 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2136 if (!strcmp (assembly->aname.name, "mscorlib"))
2137 mscorlib_aot_module = amodule;
2139 /* Compute method addresses */
2140 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2141 for (i = 0; i < amodule->info.nmethods; ++i) {
2144 if (amodule->info.llvm_get_method) {
2145 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2147 addr = get_method (i);
2150 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2151 if (!addr && amodule->info.method_addresses) {
2152 addr = get_call_table_entry (amodule->info.method_addresses, i);
2154 if (addr == amodule->info.method_addresses)
2158 amodule->methods [i] = GINT_TO_POINTER (-1);
2160 amodule->methods [i] = addr;
2163 if (make_unreadable) {
2164 #ifndef TARGET_WIN32
2166 guint8 *page_start, *page_end;
2169 addr = amodule->mem_begin;
2171 len = amodule->mem_end - amodule->mem_begin;
2173 /* Round down in both directions to avoid modifying data which is not ours */
2174 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2175 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2176 if (page_end > page_start) {
2177 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2178 g_assert (err == 0);
2183 /* Compute the boundaries of LLVM code */
2184 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2185 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2189 if (amodule->jit_code_start) {
2190 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2191 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2193 if (amodule->llvm_code_start) {
2194 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2195 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2198 g_hash_table_insert (aot_modules, assembly, amodule);
2201 if (amodule->jit_code_start)
2202 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2203 if (amodule->llvm_code_start)
2204 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2206 assembly->image->aot_module = amodule;
2208 if (mono_aot_only && !mono_llvm_only) {
2210 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2211 amodule->use_page_trampolines = code != NULL;
2212 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2216 * Register the plt region as a single trampoline so we can unwind from this code
2218 mono_tramp_info_register (
2219 mono_tramp_info_create (
2222 amodule->plt_end - amodule->plt,
2224 mono_unwind_get_cie_program ()
2230 * Since we store methoddef and classdef tokens when referring to methods/classes in
2231 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2232 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2233 * non-lazily, since we can't handle out-of-date errors later.
2234 * The cached class info also depends on the exact assemblies.
2236 #if defined(__native_client__)
2237 /* TODO: Don't 'load_image' on mscorlib due to a */
2238 /* recursive loading problem. This should be */
2239 /* removed if mscorlib is loaded from disk. */
2240 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2241 do_load_image = TRUE;
2243 do_load_image = FALSE;
2246 if (do_load_image) {
2247 for (i = 0; i < amodule->image_table_len; ++i)
2248 load_image (amodule, i, FALSE);
2251 if (amodule->out_of_date) {
2252 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);
2254 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);
2257 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2261 * mono_aot_register_module:
2263 * This should be called by embedding code to register AOT modules statically linked
2264 * into the executable. AOT_INFO should be the value of the
2265 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2268 mono_aot_register_module (gpointer *aot_info)
2272 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2274 g_assert (info->version == MONO_AOT_FILE_VERSION);
2276 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2277 globals = (void **)info->globals;
2281 aname = (char *)info->assembly_name;
2283 /* This could be called before startup */
2287 if (!static_aot_modules)
2288 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2290 g_hash_table_insert (static_aot_modules, aname, info);
2297 mono_aot_init (void)
2299 mono_os_mutex_init_recursive (&aot_mutex);
2300 mono_os_mutex_init_recursive (&aot_page_mutex);
2301 aot_modules = g_hash_table_new (NULL, NULL);
2303 #ifndef __native_client__
2304 mono_install_assembly_load_hook (load_aot_module, NULL);
2306 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2308 if (g_getenv ("MONO_LASTAOT"))
2309 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2314 mono_aot_cleanup (void)
2316 if (aot_jit_icall_hash)
2317 g_hash_table_destroy (aot_jit_icall_hash);
2319 g_hash_table_destroy (aot_modules);
2323 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2329 info->vtable_size = decode_value (buf, &buf);
2330 if (info->vtable_size == -1)
2333 flags = decode_value (buf, &buf);
2334 info->ghcimpl = (flags >> 0) & 0x1;
2335 info->has_finalize = (flags >> 1) & 0x1;
2336 info->has_cctor = (flags >> 2) & 0x1;
2337 info->has_nested_classes = (flags >> 3) & 0x1;
2338 info->blittable = (flags >> 4) & 0x1;
2339 info->has_references = (flags >> 5) & 0x1;
2340 info->has_static_refs = (flags >> 6) & 0x1;
2341 info->no_special_static_fields = (flags >> 7) & 0x1;
2342 info->is_generic_container = (flags >> 8) & 0x1;
2344 if (info->has_cctor) {
2345 res = decode_method_ref (module, &ref, buf, &buf);
2348 info->cctor_token = ref.token;
2350 if (info->has_finalize) {
2351 res = decode_method_ref (module, &ref, buf, &buf);
2354 info->finalize_image = ref.image;
2355 info->finalize_token = ref.token;
2358 info->instance_size = decode_value (buf, &buf);
2359 info->class_size = decode_value (buf, &buf);
2360 info->packing_size = decode_value (buf, &buf);
2361 info->min_align = decode_value (buf, &buf);
2369 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2372 MonoClass *klass = vtable->klass;
2373 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2375 MonoCachedClassInfo class_info;
2380 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2383 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2386 err = decode_cached_class_info (amodule, &class_info, p, &p);
2390 for (i = 0; i < slot; ++i)
2391 decode_method_ref (amodule, &ref, p, &p);
2393 res = decode_method_ref (amodule, &ref, p, &p);
2396 if (ref.no_aot_trampoline)
2399 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2402 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2406 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2408 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2412 if (klass->rank || !amodule)
2415 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2417 err = decode_cached_class_info (amodule, res, p, &p);
2425 * mono_aot_get_class_from_name:
2427 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2428 * using a cache stored in the AOT file.
2429 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2431 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2435 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2437 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2438 guint16 *table, *entry;
2441 char full_name_buf [1024];
2443 const char *name2, *name_space2;
2445 guint32 cols [MONO_TYPEDEF_SIZE];
2446 GHashTable *nspace_table;
2448 if (!amodule || !amodule->class_name_table)
2451 amodule_lock (amodule);
2455 /* First look in the cache */
2456 if (!amodule->name_cache)
2457 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2458 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2460 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2462 amodule_unlock (amodule);
2467 table_size = amodule->class_name_table [0];
2468 table = amodule->class_name_table + 1;
2470 if (name_space [0] == '\0')
2471 full_name = g_strdup_printf ("%s", name);
2473 if (strlen (name_space) + strlen (name) < 1000) {
2474 sprintf (full_name_buf, "%s.%s", name_space, name);
2475 full_name = full_name_buf;
2477 full_name = g_strdup_printf ("%s.%s", name_space, name);
2480 hash = mono_metadata_str_hash (full_name) % table_size;
2481 if (full_name != full_name_buf)
2484 entry = &table [hash * 2];
2486 if (entry [0] != 0) {
2487 t = &image->tables [MONO_TABLE_TYPEDEF];
2490 guint32 index = entry [0];
2491 guint32 next = entry [1];
2492 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2494 name_table_accesses ++;
2496 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2498 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2499 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2501 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2503 amodule_unlock (amodule);
2504 *klass = mono_class_get_checked (image, token, &error);
2505 if (!mono_error_ok (&error))
2506 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2510 amodule_lock (amodule);
2511 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2512 if (!nspace_table) {
2513 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2514 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2516 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2517 amodule_unlock (amodule);
2523 entry = &table [next * 2];
2530 amodule_unlock (amodule);
2535 /* Compute the boundaries of the LLVM code for AMODULE. */
2537 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2540 int version, fde_count;
2543 if (amodule->info.llvm_get_method) {
2544 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2546 *code_start = (guint8 *)get_method (-1);
2547 *code_end = (guint8 *)get_method (-2);
2549 g_assert (*code_end > *code_start);
2553 g_assert (amodule->mono_eh_frame);
2555 p = amodule->mono_eh_frame;
2557 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2561 g_assert (version == 3);
2564 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2566 fde_count = *(guint32*)p;
2570 if (fde_count > 0) {
2571 *code_start = (guint8 *)amodule->methods [table [0]];
2572 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2580 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2582 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2589 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2591 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2598 * decode_llvm_mono_eh_frame:
2600 * Decode the EH information emitted by our modified LLVM compiler and construct a
2601 * MonoJitInfo structure from it.
2602 * LOCKING: Acquires the domain lock.
2605 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2606 MonoMethod *method, guint8 *code, guint32 code_len,
2607 MonoJitExceptionInfo *clauses, int num_clauses,
2608 MonoJitInfoFlags flags,
2610 int *this_reg, int *this_offset)
2612 guint8 *p, *code1, *code2;
2613 guint8 *fde, *cie, *code_start, *code_end;
2614 int version, fde_count;
2616 int i, pos, left, right;
2617 MonoJitExceptionInfo *ei;
2618 guint32 fde_len, ei_len, nested_len, nindex;
2619 gpointer *type_info;
2621 MonoLLVMFDEInfo info;
2623 if (!amodule->mono_eh_frame) {
2624 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2625 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2626 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2630 g_assert (amodule->mono_eh_frame && code);
2632 p = amodule->mono_eh_frame;
2634 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2638 g_assert (version == 3);
2640 /* func_encoding = *p; */
2642 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2644 fde_count = *(guint32*)p;
2648 /* There is +1 entry in the table */
2649 cie = p + ((fde_count + 1) * 8);
2651 /* Binary search in the table to find the entry for code */
2655 pos = (left + right) / 2;
2657 /* The table contains method index/fde offset pairs */
2658 g_assert (table [(pos * 2)] != -1);
2659 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2660 if (pos + 1 == fde_count) {
2661 code2 = amodule->llvm_code_end;
2663 g_assert (table [(pos + 1) * 2] != -1);
2664 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2669 else if (code >= code2)
2675 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2676 if (pos + 1 == fde_count) {
2677 /* The +1 entry in the table contains the length of the last method */
2678 int len = table [(pos + 1) * 2];
2679 code_end = code_start + len;
2681 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2684 code_len = code_end - code_start;
2686 g_assert (code >= code_start && code < code_end);
2688 if (is_thumb_code (amodule, code_start))
2689 /* Clear thumb flag */
2690 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2692 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2693 /* This won't overflow because there is +1 entry in the table */
2694 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2696 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2698 ei_len = info.ex_info_len;
2699 type_info = info.type_info;
2700 *this_reg = info.this_reg;
2701 *this_offset = info.this_offset;
2703 /* Count number of nested clauses */
2705 for (i = 0; i < ei_len; ++i) {
2706 /* This might be unaligned */
2707 gint32 cindex1 = read32 (type_info [i]);
2710 for (l = nesting [cindex1]; l; l = l->next)
2715 * LLVM might represent one IL region with multiple regions, so have to
2716 * allocate a new JI.
2719 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2720 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2722 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2723 /* This signals that unwind_info points to a normal cached unwind info */
2724 jinfo->from_aot = 0;
2725 jinfo->from_llvm = 1;
2727 for (i = 0; i < ei_len; ++i) {
2729 * clauses contains the original IL exception info saved by the AOT
2730 * compiler, we have to combine that with the information produced by LLVM
2732 /* The type_info entries contain IL clause indexes */
2733 int clause_index = read32 (type_info [i]);
2734 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2735 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2737 g_assert (clause_index < num_clauses);
2738 jei->flags = orig_jei->flags;
2739 jei->data.catch_class = orig_jei->data.catch_class;
2741 jei->try_start = ei [i].try_start;
2742 jei->try_end = ei [i].try_end;
2743 jei->handler_start = ei [i].handler_start;
2744 jei->clause_index = clause_index;
2746 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2747 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2748 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2749 /* Make sure we transition to thumb when a handler starts */
2750 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2754 /* See exception_cb () in mini-llvm.c as to why this is needed */
2756 for (i = 0; i < ei_len; ++i) {
2757 gint32 cindex1 = read32 (type_info [i]);
2760 for (l = nesting [cindex1]; l; l = l->next) {
2761 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2762 MonoJitExceptionInfo *nesting_ei;
2763 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2765 nesting_ei = &jinfo->clauses [nindex];
2768 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2769 nesting_ei->flags = nesting_clause->flags;
2770 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2771 nesting_ei->clause_index = nesting_cindex;
2774 g_assert (nindex == ei_len + nested_len);
2780 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2784 if (async_context) {
2785 res = mono_domain_alloc0_lock_free (domain, size);
2786 InterlockedExchangeAdd (&async_jit_info_size, size);
2788 res = mono_domain_alloc0 (domain, size);
2794 * LOCKING: Acquires the domain lock.
2795 * In async context, this is async safe.
2798 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2799 MonoMethod *method, guint8* ex_info,
2800 guint8 *code, guint32 code_len)
2802 int i, buf_len, num_clauses, len;
2804 MonoJitInfoFlags flags = JIT_INFO_NONE;
2805 guint unwind_info, eflags;
2806 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2807 gboolean from_llvm, has_gc_map;
2809 int try_holes_info_size, num_holes;
2810 int this_reg = 0, this_offset = 0;
2813 /* Load the method info from the AOT file */
2814 async = mono_thread_info_is_async_context ();
2817 eflags = decode_value (p, &p);
2818 has_generic_jit_info = (eflags & 1) != 0;
2819 has_dwarf_unwind_info = (eflags & 2) != 0;
2820 has_clauses = (eflags & 4) != 0;
2821 has_seq_points = (eflags & 8) != 0;
2822 from_llvm = (eflags & 16) != 0;
2823 has_try_block_holes = (eflags & 32) != 0;
2824 has_gc_map = (eflags & 64) != 0;
2825 has_arch_eh_jit_info = (eflags & 128) != 0;
2827 if (has_dwarf_unwind_info) {
2828 unwind_info = decode_value (p, &p);
2829 g_assert (unwind_info < (1 << 30));
2831 unwind_info = decode_value (p, &p);
2833 if (has_generic_jit_info)
2834 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2836 if (has_try_block_holes) {
2837 num_holes = decode_value (p, &p);
2838 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2839 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2841 num_holes = try_holes_info_size = 0;
2844 if (has_arch_eh_jit_info) {
2845 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2846 /* Overwrite the original code_len which includes alignment padding */
2847 code_len = decode_value (p, &p);
2850 /* Exception table */
2852 num_clauses = decode_value (p, &p);
2857 MonoJitExceptionInfo *clauses;
2864 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2867 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2868 nesting = g_new0 (GSList*, num_clauses);
2870 for (i = 0; i < num_clauses; ++i) {
2871 MonoJitExceptionInfo *ei = &clauses [i];
2873 ei->flags = decode_value (p, &p);
2875 if (decode_value (p, &p))
2876 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2878 ei->clause_index = i;
2880 ei->try_offset = decode_value (p, &p);
2881 ei->try_len = decode_value (p, &p);
2882 ei->handler_offset = decode_value (p, &p);
2883 ei->handler_len = decode_value (p, &p);
2885 /* Read the list of nesting clauses */
2887 int nesting_index = decode_value (p, &p);
2888 if (nesting_index == -1)
2890 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2894 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2897 for (i = 0; i < num_clauses; ++i)
2898 g_slist_free (nesting [i]);
2901 len = mono_jit_info_size (flags, num_clauses, num_holes);
2902 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2903 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2905 for (i = 0; i < jinfo->num_clauses; ++i) {
2906 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2908 ei->flags = decode_value (p, &p);
2910 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2911 /* Not used for catch clauses */
2912 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2913 ei->exvar_offset = decode_value (p, &p);
2915 ei->exvar_offset = decode_value (p, &p);
2918 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2919 ei->data.filter = code + decode_value (p, &p);
2921 int len = decode_value (p, &p);
2927 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2931 ei->try_start = code + decode_value (p, &p);
2932 ei->try_end = code + decode_value (p, &p);
2933 ei->handler_start = code + decode_value (p, &p);
2936 jinfo->unwind_info = unwind_info;
2937 jinfo->domain_neutral = 0;
2938 jinfo->from_aot = 1;
2941 if (has_try_block_holes) {
2942 MonoTryBlockHoleTableJitInfo *table;
2944 g_assert (jinfo->has_try_block_holes);
2946 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2949 table->num_holes = (guint16)num_holes;
2950 for (i = 0; i < num_holes; ++i) {
2951 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2952 hole->clause = decode_value (p, &p);
2953 hole->length = decode_value (p, &p);
2954 hole->offset = decode_value (p, &p);
2958 if (has_arch_eh_jit_info) {
2959 MonoArchEHJitInfo *eh_info;
2961 g_assert (jinfo->has_arch_eh_info);
2963 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
2964 eh_info->stack_size = decode_value (p, &p);
2965 eh_info->epilog_size = decode_value (p, &p);
2969 /* The rest is not needed in async mode */
2970 jinfo->async = TRUE;
2971 jinfo->d.aot_info = amodule;
2976 if (has_generic_jit_info) {
2977 MonoGenericJitInfo *gi;
2980 g_assert (jinfo->has_generic_jit_info);
2982 gi = mono_jit_info_get_generic_jit_info (jinfo);
2985 gi->nlocs = decode_value (p, &p);
2987 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
2988 for (i = 0; i < gi->nlocs; ++i) {
2989 MonoDwarfLocListEntry *entry = &gi->locations [i];
2991 entry->is_reg = decode_value (p, &p);
2992 entry->reg = decode_value (p, &p);
2994 entry->offset = decode_value (p, &p);
2996 entry->from = decode_value (p, &p);
2997 entry->to = decode_value (p, &p);
3002 gi->has_this = this_reg != -1;
3003 gi->this_reg = this_reg;
3004 gi->this_offset = this_offset;
3006 gi->has_this = decode_value (p, &p);
3007 gi->this_reg = decode_value (p, &p);
3008 gi->this_offset = decode_value (p, &p);
3012 len = decode_value (p, &p);
3016 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
3018 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
3019 if (decode_value (p, &p)) {
3021 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3023 gsctx->is_gsharedvt = TRUE;
3027 if (method && has_seq_points) {
3028 MonoSeqPointInfo *seq_points;
3030 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3032 mono_domain_lock (domain);
3033 /* This could be set already since this function can be called more than once for the same method */
3034 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3035 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3037 mono_seq_point_info_free (seq_points);
3038 mono_domain_unlock (domain);
3041 /* Load debug info */
3042 buf_len = decode_value (p, &p);
3044 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3048 int map_size = decode_value (p, &p);
3049 /* The GC map requires 4 bytes of alignment */
3050 while ((guint64)(gsize)p % 4)
3056 if (amodule != jinfo->d.method->klass->image->aot_module) {
3059 ji_to_amodule = g_hash_table_new (NULL, NULL);
3060 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3068 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3070 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3071 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3075 * mono_aot_get_unwind_info:
3077 * Return a pointer to the DWARF unwind info belonging to JI.
3080 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3082 MonoAotModule *amodule;
3084 guint8 *code = (guint8 *)ji->code_start;
3087 amodule = (MonoAotModule *)ji->d.aot_info;
3089 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3091 g_assert (ji->from_aot);
3093 if (!amodule_contains_code_addr (amodule, code)) {
3094 /* ji belongs to a different aot module than amodule */
3096 g_assert (ji_to_amodule);
3097 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3099 g_assert (amodule_contains_code_addr (amodule, code));
3103 p = amodule->unwind_info + ji->unwind_info;
3104 *unwind_info_len = decode_value (p, &p);
3109 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3111 int mid = (lo + hi) / 2;
3118 for (i = lo; i < hi; ++i)
3119 if (array [i] > array [i + 1])
3122 /* Already sorted */
3126 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3127 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3129 if (array [mid] < array [mid + 1])
3135 for (i = lo; i <= hi; i ++) {
3136 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3137 scratch [i] = array [t_lo];
3138 scratch_indexes [i] = indexes [t_lo];
3141 scratch [i] = array [t_hi];
3142 scratch_indexes [i] = indexes [t_hi];
3146 for (i = lo; i <= hi; ++i) {
3147 array [i] = scratch [i];
3148 indexes [i] = scratch_indexes [i];
3153 msort_method_addresses (gpointer *array, int *indexes, int len)
3156 int *scratch_indexes;
3158 scratch = g_new (gpointer, len);
3159 scratch_indexes = g_new (int, len);
3160 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3162 g_free (scratch_indexes);
3166 * mono_aot_find_jit_info:
3168 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3169 * to the jit info tables.
3170 * FIXME: Large sizes in the lock free allocator
3173 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3175 int pos, left, right, code_len;
3176 int method_index, table_len;
3178 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3179 MonoMethod *method = NULL;
3181 guint8 *code, *ex_info, *p;
3185 guint8 *code1, *code2;
3192 nmethods = amodule->info.nmethods;
3194 if (domain != mono_get_root_domain ())
3198 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3201 async = mono_thread_info_is_async_context ();
3203 /* Compute a sorted table mapping code to method indexes. */
3204 if (!amodule->sorted_methods) {
3206 gpointer *methods = g_new0 (gpointer, nmethods);
3207 int *method_indexes = g_new0 (int, nmethods);
3208 int methods_len = 0;
3210 for (i = 0; i < nmethods; ++i) {
3211 /* Skip the -1 entries to speed up sorting */
3212 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3214 methods [methods_len] = amodule->methods [i];
3215 method_indexes [methods_len] = i;
3218 /* Use a merge sort as this is mostly sorted */
3219 msort_method_addresses (methods, method_indexes, methods_len);
3220 for (i = 0; i < methods_len -1; ++i)
3221 g_assert (methods [i] <= methods [i + 1]);
3222 amodule->sorted_methods_len = methods_len;
3223 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3224 /* Somebody got in before us */
3226 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3227 /* Somebody got in before us */
3228 g_free (method_indexes);
3231 /* Binary search in the sorted_methods table */
3232 methods = amodule->sorted_methods;
3233 methods_len = amodule->sorted_methods_len;
3234 code = (guint8 *)addr;
3236 right = methods_len;
3238 pos = (left + right) / 2;
3240 code1 = (guint8 *)methods [pos];
3241 if (pos + 1 == methods_len) {
3242 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3243 code2 = amodule->jit_code_end;
3245 code2 = amodule->llvm_code_end;
3247 code2 = (guint8 *)methods [pos + 1];
3252 else if (code >= code2)
3258 g_assert (addr >= methods [pos]);
3259 if (pos + 1 < methods_len)
3260 g_assert (addr < methods [pos + 1]);
3261 method_index = amodule->sorted_method_indexes [pos];
3263 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3265 JitInfoMap *table = amodule->async_jit_info_table;
3269 len = table [0].method_index;
3270 for (i = 1; i < len; ++i) {
3271 if (table [i].method_index == method_index)
3272 return table [i].jinfo;
3277 code = (guint8 *)amodule->methods [method_index];
3278 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3280 if (pos == methods_len - 1) {
3281 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3282 code_len = amodule->jit_code_end - code;
3284 code_len = amodule->llvm_code_end - code;
3286 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3289 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3291 /* Might be a wrapper/extra method */
3293 if (amodule->extra_methods) {
3294 amodule_lock (amodule);
3295 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3296 amodule_unlock (amodule);
3302 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3304 * This is hit for extra methods which are called directly, so they are
3305 * not in amodule->extra_methods.
3307 table_len = amodule->extra_method_info_offsets [0];
3308 table = amodule->extra_method_info_offsets + 1;
3315 pos = ((left + right) / 2);
3317 g_assert (pos < table_len);
3319 if (table [pos * 2] < method_index)
3321 else if (table [pos * 2] > method_index)
3327 p = amodule->blob + table [(pos * 2) + 1];
3328 method = decode_resolve_method_ref (amodule, p, &p);
3330 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3334 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3335 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3337 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3344 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3346 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3348 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3350 /* Add it to the normal JitInfo tables */
3352 JitInfoMap *old_table, *new_table;
3356 * Use a simple inmutable table with linear search to cache async jit info entries.
3357 * This assumes that the number of entries is small.
3360 /* Copy the table, adding a new entry at the end */
3361 old_table = amodule->async_jit_info_table;
3363 len = old_table[0].method_index;
3366 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3368 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3369 new_table [0].method_index = len + 1;
3370 new_table [len].method_index = method_index;
3371 new_table [len].jinfo = jinfo;
3373 mono_memory_barrier ();
3374 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3378 mono_jit_info_table_add (domain, jinfo);
3381 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3382 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3389 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3397 case MONO_PATCH_INFO_METHOD:
3398 case MONO_PATCH_INFO_METHOD_JUMP:
3399 case MONO_PATCH_INFO_ICALL_ADDR:
3400 case MONO_PATCH_INFO_METHOD_RGCTX:
3401 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3405 res = decode_method_ref (aot_module, &ref, p, &p);
3409 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)) {
3410 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3411 ji->type = MONO_PATCH_INFO_ABS;
3415 ji->data.method = ref.method;
3418 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3419 if (!ji->data.method)
3420 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3422 g_assert (ji->data.method);
3423 mono_class_init (ji->data.method->klass);
3427 case MONO_PATCH_INFO_INTERNAL_METHOD:
3428 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3429 guint32 len = decode_value (p, &p);
3431 ji->data.name = (char*)p;
3435 case MONO_PATCH_INFO_METHODCONST:
3437 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3438 if (!ji->data.method)
3441 case MONO_PATCH_INFO_VTABLE:
3442 case MONO_PATCH_INFO_CLASS:
3443 case MONO_PATCH_INFO_IID:
3444 case MONO_PATCH_INFO_ADJUSTED_IID:
3446 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3447 if (!ji->data.klass)
3450 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3451 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3452 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p);
3453 if (!ji->data.del_tramp->klass)
3455 if (decode_value (p, &p)) {
3456 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3457 if (!ji->data.del_tramp->method)
3460 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3462 case MONO_PATCH_INFO_IMAGE:
3463 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
3464 if (!ji->data.image)
3467 case MONO_PATCH_INFO_FIELD:
3468 case MONO_PATCH_INFO_SFLDA:
3470 ji->data.field = decode_field_info (aot_module, p, &p);
3471 if (!ji->data.field)
3474 case MONO_PATCH_INFO_SWITCH:
3475 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3476 ji->data.table->table_size = decode_value (p, &p);
3477 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3478 ji->data.table->table = (MonoBasicBlock**)table;
3479 for (i = 0; i < ji->data.table->table_size; i++)
3480 table [i] = (gpointer)(gssize)decode_value (p, &p);
3482 case MONO_PATCH_INFO_R4: {
3485 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3486 val = decode_value (p, &p);
3487 *(float*)ji->data.target = *(float*)&val;
3490 case MONO_PATCH_INFO_R8: {
3494 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3496 val [0] = decode_value (p, &p);
3497 val [1] = decode_value (p, &p);
3498 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3499 *(double*)ji->data.target = *(double*)&v;
3502 case MONO_PATCH_INFO_LDSTR:
3503 image = load_image (aot_module, decode_value (p, &p), TRUE);
3506 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3508 case MONO_PATCH_INFO_RVA:
3509 case MONO_PATCH_INFO_DECLSEC:
3510 case MONO_PATCH_INFO_LDTOKEN:
3511 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3513 image = load_image (aot_module, decode_value (p, &p), TRUE);
3516 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3518 ji->data.token->has_context = decode_value (p, &p);
3519 if (ji->data.token->has_context) {
3520 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3525 case MONO_PATCH_INFO_EXC_NAME:
3526 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3527 if (!ji->data.klass)
3529 ji->data.name = ji->data.klass->name;
3531 case MONO_PATCH_INFO_METHOD_REL:
3532 ji->data.offset = decode_value (p, &p);
3534 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3535 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3536 case MONO_PATCH_INFO_GC_NURSERY_START:
3537 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3538 case MONO_PATCH_INFO_JIT_TLS_ID:
3540 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3541 ji->data.index = decode_value (p, &p);
3543 case MONO_PATCH_INFO_RGCTX_FETCH:
3544 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3546 MonoJumpInfoRgctxEntry *entry;
3547 guint32 offset, val;
3550 offset = decode_value (p, &p);
3551 val = decode_value (p, &p);
3553 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3554 p2 = aot_module->blob + offset;
3555 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3556 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3557 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3558 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3559 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3561 res = decode_patch (aot_module, mp, entry->data, p, &p);
3564 ji->data.rgctx_entry = entry;
3567 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3568 case MONO_PATCH_INFO_AOT_MODULE:
3569 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3571 case MONO_PATCH_INFO_SIGNATURE:
3572 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3573 ji->data.target = decode_signature (aot_module, p, &p);
3575 case MONO_PATCH_INFO_TLS_OFFSET:
3576 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3578 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3579 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3580 info->sig = decode_signature (aot_module, p, &p);
3581 g_assert (info->sig);
3582 info->method = decode_resolve_method_ref (aot_module, p, &p);
3583 g_assert (info->method);
3585 ji->data.target = info;
3588 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3589 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3592 info->method = decode_resolve_method_ref (aot_module, p, &p);
3593 g_assert (info->method);
3594 info->num_entries = decode_value (p, &p);
3595 info->count_entries = info->num_entries;
3596 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3597 for (i = 0; i < info->num_entries; ++i) {
3598 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3600 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3601 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3602 case MONO_PATCH_INFO_CLASS: {
3603 MonoClass *klass = decode_klass_ref (aot_module, p, &p);
3606 template_->data = &klass->byval_arg;
3609 case MONO_PATCH_INFO_FIELD:
3610 template_->data = decode_field_info (aot_module, p, &p);
3611 if (!template_->data)
3615 g_assert_not_reached ();
3619 ji->data.target = info;
3622 case MONO_PATCH_INFO_LDSTR_LIT: {
3623 int len = decode_value (p, &p);
3626 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3627 memcpy (s, p, len + 1);
3630 ji->data.target = s;
3633 case MONO_PATCH_INFO_VIRT_METHOD: {
3634 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3636 info->klass = decode_klass_ref (aot_module, p, &p);
3637 g_assert (info->klass);
3638 info->method = decode_resolve_method_ref (aot_module, p, &p);
3639 g_assert (info->method);
3641 ji->data.target = info;
3644 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3646 case MONO_PATCH_INFO_AOT_JIT_INFO:
3647 ji->data.index = decode_value (p, &p);
3650 g_warning ("unhandled type %d", ji->type);
3651 g_assert_not_reached ();
3665 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3666 * MonoJumpInfo structures allocated from MP.
3668 static MonoJumpInfo*
3669 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3671 MonoJumpInfo *patches;
3674 guint32 *got_info_offsets;
3679 got = amodule->llvm_got;
3680 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3683 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3686 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3687 for (i = 0; i < n_patches; ++i) {
3688 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3691 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3693 /* See load_method () for SFLDA */
3694 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3695 /* Already loaded */
3697 res = decode_patch (amodule, mp, ji, p, &p);
3706 static MonoJumpInfo*
3707 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3708 gboolean llvm, guint32 **got_slots,
3709 guint8 *buf, guint8 **endbuf)
3711 MonoJumpInfo *patches;
3717 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3718 for (pindex = 0; pindex < n_patches; ++pindex) {
3719 (*got_slots)[pindex] = decode_value (p, &p);
3722 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3724 g_free (*got_slots);
3734 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3737 * Jump addresses cannot be patched by the trampoline code since it
3738 * does not have access to the caller's address. Instead, we collect
3739 * the addresses of the GOT slots pointing to a method, and patch
3740 * them after the method has been compiled.
3742 MonoJitDomainInfo *info = domain_jit_info (domain);
3745 mono_domain_lock (domain);
3746 if (!info->jump_target_got_slot_hash)
3747 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3748 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3749 list = g_slist_prepend (list, got_slot);
3750 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3751 mono_domain_unlock (domain);
3757 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3758 * pointer to the native code of the method, or NULL if not found.
3759 * METHOD might not be set if the caller only has the image/token info.
3762 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3764 MonoJitInfo *jinfo = NULL;
3765 guint8 *code = NULL, *info;
3768 init_amodule_got (amodule);
3770 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3772 /* The caller cannot handle this */
3773 g_assert_not_reached ();
3777 if (domain != mono_get_root_domain ())
3778 /* Non shared AOT code can't be used in other appdomains */
3781 if (amodule->out_of_date)
3784 if (amodule->info.llvm_get_method) {
3786 * Obtain the method address by calling a generated function in the LLVM module.
3788 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3789 code = (guint8 *)get_method (method_index);
3794 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3795 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3800 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3801 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3803 full_name = mono_method_full_name (method, TRUE);
3804 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3809 code = (guint8 *)amodule->methods [method_index];
3812 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3814 if (!amodule->methods_loaded) {
3815 amodule_lock (amodule);
3816 if (!amodule->methods_loaded) {
3819 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3820 mono_memory_barrier ();
3821 amodule->methods_loaded = loaded;
3823 amodule_unlock (amodule);
3826 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3829 if (mono_last_aot_method != -1) {
3830 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3832 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3835 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3837 mono_error_cleanup (&error);/* FIXME don't swallow the error */
3840 char *name = mono_method_full_name (method, TRUE);
3841 g_print ("LAST AOT METHOD: %s.\n", name);
3844 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3849 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3852 res = init_llvm_method (amodule, method_index, method, NULL, NULL, &error);
3853 if (!mono_error_ok (&error))
3854 mono_error_raise_exception (&error); /* FIXME: Don't raise here */
3859 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3864 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3866 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3869 full_name = mono_method_full_name (method, TRUE);
3872 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3874 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3878 amodule_lock (amodule);
3880 InterlockedIncrement (&mono_jit_stats.methods_aot);
3882 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3886 if (method && method->wrapper_type)
3887 g_hash_table_insert (amodule->method_to_code, method, code);
3889 amodule_unlock (amodule);
3891 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3896 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, &error);
3898 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3900 mono_profiler_method_jit (method);
3901 jinfo = mono_jit_info_table_find (domain, (char*)code);
3903 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3916 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3918 guint32 table_size, entry_size, hash;
3919 guint32 *table, *entry;
3921 static guint32 n_extra_decodes;
3923 if (!amodule || amodule->out_of_date)
3926 table_size = amodule->extra_method_table [0];
3927 hash = hash_full % table_size;
3928 table = amodule->extra_method_table + 1;
3931 entry = &table [hash * entry_size];
3938 guint32 key = entry [0];
3939 guint32 value = entry [1];
3940 guint32 next = entry [entry_size - 1];
3944 p = amodule->blob + key;
3947 amodule_lock (amodule);
3948 if (!amodule->method_ref_to_method)
3949 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
3950 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
3951 amodule_unlock (amodule);
3953 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
3955 * Can't catche runtime invoke wrappers since it would break
3956 * the check in decode_method_ref_with_target ().
3958 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
3959 amodule_lock (amodule);
3960 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
3961 amodule_unlock (amodule);
3970 * Special case: wrappers of shared generic methods.
3971 * This is needed because of the way mini_get_shared_method () works,
3972 * we could end up with multiple copies of the same wrapper.
3974 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
3975 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3976 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
3977 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
3979 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
3984 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
3985 method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
3986 WrapperInfo *info1 = mono_marshal_get_wrapper_info (method);
3987 WrapperInfo *info2 = mono_marshal_get_wrapper_info (m);
3989 if (info1 && info2 && info1->subtype == info2->subtype && method->klass == m->klass) {
3995 /* Methods decoded needlessly */
3997 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4002 entry = &table [next * entry_size];
4011 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4013 g_ptr_array_add ((GPtrArray*)user_data, value);
4019 * Try finding METHOD in the extra_method table in all AOT images.
4020 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4021 * module where the method was found.
4024 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4029 guint32 hash = mono_aot_method_hash (method);
4031 /* Try the method's module first */
4032 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4033 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4034 if (index != 0xffffff)
4038 * Try all other modules.
4039 * This is needed because generic instances klass->image points to the image
4040 * containing the generic definition, but the native code is generated to the
4041 * AOT image which contains the reference.
4044 /* Make a copy to avoid doing the search inside the aot lock */
4045 modules = g_ptr_array_new ();
4047 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4051 for (i = 0; i < modules->len; ++i) {
4052 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4054 if (amodule != method->klass->image->aot_module)
4055 index = find_aot_method_in_amodule (amodule, method, hash);
4056 if (index != 0xffffff) {
4057 *out_amodule = amodule;
4062 g_ptr_array_free (modules, TRUE);
4068 mono_aot_find_method_index (MonoMethod *method)
4070 MonoAotModule *out_amodule;
4071 return find_aot_method (method, &out_amodule);
4075 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4077 MonoDomain *domain = mono_domain_get ();
4080 gboolean from_plt = method == NULL;
4081 int pindex, n_patches;
4083 MonoJitInfo *jinfo = NULL;
4084 guint8 *code, *info;
4086 mono_error_init (error);
4088 code = (guint8 *)amodule->methods [method_index];
4089 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4094 klass = method->klass;
4095 decode_klass_ref (amodule, p, &p);
4097 klass = decode_klass_ref (amodule, p, &p);
4100 n_patches = decode_value (p, &p);
4103 MonoJumpInfo *patches;
4108 mp = mono_mempool_new ();
4110 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4115 got = amodule->llvm_got;
4119 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4120 if (patches == NULL) {
4121 mono_mempool_destroy (mp);
4125 for (pindex = 0; pindex < n_patches; ++pindex) {
4126 MonoJumpInfo *ji = &patches [pindex];
4130 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4131 * been initialized by load_method () for a static cctor before the cctor has
4132 * finished executing (#23242).
4134 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4135 /* In llvm-only made, we might encounter shared methods */
4136 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4138 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4139 if (!mono_error_ok (error)) {
4141 mono_mempool_destroy (mp);
4145 /* This cannot be resolved in mono_resolve_patch_target () */
4146 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4147 // FIXME: Lookup using the index
4148 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4149 ji->type = MONO_PATCH_INFO_ABS;
4150 ji->data.target = jinfo;
4152 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4153 if (!mono_error_ok (error)) {
4155 mono_mempool_destroy (mp);
4158 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4159 addr = mono_create_ftnptr (domain, addr);
4160 mono_memory_barrier ();
4161 got [got_slots [pindex]] = addr;
4162 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4163 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4165 ji->type = MONO_PATCH_INFO_NONE;
4170 mono_mempool_destroy (mp);
4173 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4174 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4176 gboolean inited_ok = TRUE;
4178 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4179 else if (from_plt && klass && !klass->generic_container)
4180 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass), error);
4194 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4196 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4200 // FIXME: Handle errors
4201 res = init_llvm_method (amodule, method_index, NULL, NULL, NULL, &error);
4206 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4208 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4211 MonoGenericContext *context;
4216 g_assert (this_obj);
4217 klass = this_obj->vtable->klass;
4219 amodule_lock (amodule);
4220 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4221 amodule_unlock (amodule);
4224 context = mono_method_get_context (method);
4227 res = init_llvm_method (amodule, method_index, NULL, klass, context, &error);
4232 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4234 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4236 MonoGenericContext context = { NULL, NULL };
4237 MonoClass *klass = rgctx->class_vtable->klass;
4240 if (klass->generic_class)
4241 context.class_inst = klass->generic_class->context.class_inst;
4242 else if (klass->generic_container)
4243 context.class_inst = klass->generic_container->context.class_inst;
4244 context.method_inst = rgctx->method_inst;
4246 res = init_llvm_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context, &error);
4251 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4253 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4256 MonoGenericContext *context;
4260 klass = vtable->klass;
4262 amodule_lock (amodule);
4263 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4264 amodule_unlock (amodule);
4267 context = mono_method_get_context (method);
4270 res = init_llvm_method (amodule, method_index, NULL, klass, context, &error);
4275 * mono_aot_get_method:
4277 * Return a pointer to the AOTed native code for METHOD if it can be found,
4279 * On platforms with function pointers, this doesn't return a function pointer.
4282 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4284 MonoClass *klass = method->klass;
4285 MonoMethod *orig_method = method;
4286 guint32 method_index;
4287 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4289 gboolean cache_result = FALSE;
4291 if (domain != mono_get_root_domain ())
4292 /* Non shared AOT code can't be used in other appdomains */
4295 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4296 /* This cannot be AOTed during startup, so do it now */
4297 if (!mscorlib_aot_loaded) {
4298 mscorlib_aot_loaded = TRUE;
4299 load_aot_module (klass->image->assembly, NULL);
4300 amodule = (MonoAotModule *)klass->image->aot_module;
4307 if (amodule->out_of_date)
4310 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4311 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4312 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4313 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4317 * Use the original method instead of its invoke-with-check wrapper.
4318 * This is not a problem when using full-aot, since it doesn't support
4321 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4322 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4324 g_assert (klass->inited);
4326 /* Find method index */
4327 method_index = 0xffffff;
4328 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4329 MonoMethod *orig_method = method;
4331 * For generic methods, we store the fully shared instance in place of the
4334 method = mono_method_get_declaring_generic_method (method);
4335 method_index = mono_metadata_token_index (method->token) - 1;
4337 if (mono_llvm_only) {
4338 /* Needed by mono_aot_init_gshared_method_this () */
4339 /* orig_method is a random instance but it is enough to make init_llvm_method () work */
4340 amodule_lock (amodule);
4341 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4342 amodule_unlock (amodule);
4344 } else if (method->is_inflated || !method->token) {
4345 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4346 amodule_lock (amodule);
4347 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4348 amodule_unlock (amodule);
4352 cache_result = TRUE;
4353 method_index = find_aot_method (method, &amodule);
4355 * Special case the ICollection<T> wrappers for arrays, as they cannot
4356 * be statically enumerated, and each wrapper ends up calling the same
4359 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4360 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4362 code = (guint8 *)mono_aot_get_method (domain, m);
4368 * Special case Array.GetGenericValueImpl which is a generic icall.
4369 * Generic sharing currently can't handle it, but the icall returns data using
4370 * an out parameter, so the managed-to-native wrappers can share the same code.
4372 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4375 MonoGenericContext ctx;
4376 MonoType *args [16];
4378 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4379 /* Avoid recursion */
4382 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4385 memset (&ctx, 0, sizeof (ctx));
4386 args [0] = &mono_defaults.object_class->byval_arg;
4387 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4389 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4391 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4394 * Get the code for the <object> instantiation which should be emitted into
4395 * the mscorlib aot image by the AOT compiler.
4397 code = (guint8 *)mono_aot_get_method (domain, m);
4402 /* Same for CompareExchange<T> and Exchange<T> */
4403 /* Same for Volatile.Read<T>/Write<T> */
4404 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4405 ((!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]))) ||
4406 (!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)))) ||
4407 (!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])))))) {
4410 MonoGenericContext ctx;
4411 MonoType *args [16];
4412 gpointer iter = NULL;
4414 while ((m = mono_class_get_methods (method->klass, &iter))) {
4415 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4420 memset (&ctx, 0, sizeof (ctx));
4421 args [0] = &mono_defaults.object_class->byval_arg;
4422 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4424 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4426 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4428 /* Avoid recursion */
4433 * Get the code for the <object> instantiation which should be emitted into
4434 * the mscorlib aot image by the AOT compiler.
4436 code = (guint8 *)mono_aot_get_method (domain, m);
4441 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4442 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4443 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4445 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4446 MonoMethod *array_method = info->d.array_accessor.method;
4447 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4448 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4449 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4452 m = mono_marshal_get_array_accessor_wrapper (m);
4454 code = (guint8 *)mono_aot_get_method (domain, m);
4462 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4463 /* Partial sharing */
4466 shared = mini_get_shared_method (method);
4467 method_index = find_aot_method (shared, &amodule);
4468 if (method_index != 0xffffff)
4472 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4475 /* Use the all-vt shared method since this is what was AOTed */
4476 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4477 method_index = find_aot_method (shared, &amodule);
4478 if (method_index != 0xffffff)
4479 method = mini_get_shared_method_full (method, TRUE, FALSE);
4482 if (method_index == 0xffffff) {
4483 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4486 full_name = mono_method_full_name (method, TRUE);
4487 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4493 if (method_index == 0xffffff)
4496 /* Needed by find_jit_info */
4497 amodule_lock (amodule);
4498 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4499 amodule_unlock (amodule);
4502 method_index = mono_metadata_token_index (method->token) - 1;
4505 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index);
4506 if (code && cache_result) {
4507 amodule_lock (amodule);
4508 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4509 amodule_unlock (amodule);
4515 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4519 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4521 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4527 method_index = mono_metadata_token_index (token) - 1;
4529 return load_method (domain, aot_module, image, NULL, token, method_index);
4535 } IsGotEntryUserData;
4538 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4540 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4541 MonoAotModule *aot_module = (MonoAotModule*)value;
4543 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4548 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4550 IsGotEntryUserData user_data;
4555 user_data.addr = addr;
4556 user_data.res = FALSE;
4558 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4561 return user_data.res;
4566 MonoAotModule *module;
4567 } FindAotModuleUserData;
4570 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4572 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4573 MonoAotModule *aot_module = (MonoAotModule*)value;
4575 if (amodule_contains_code_addr (aot_module, data->addr))
4576 data->module = aot_module;
4579 static inline MonoAotModule*
4580 find_aot_module (guint8 *code)
4582 FindAotModuleUserData user_data;
4587 /* Reading these need no locking */
4588 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4591 user_data.addr = code;
4592 user_data.module = NULL;
4595 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4598 return user_data.module;
4602 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4604 MonoAotModule *amodule;
4607 * Since AOT code is only used in the root domain,
4608 * mono_domain_get () != mono_get_root_domain () means the calling method
4609 * is AppDomain:InvokeInDomain, so this is the same check as in
4610 * mono_method_same_domain () but without loading the metadata for the method.
4612 if (mono_domain_get () == mono_get_root_domain ()) {
4614 amodule = find_aot_module (code);
4618 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4623 * mono_aot_plt_resolve:
4625 * This function is called by the entries in the PLT to resolve the actual method that
4626 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4627 * Returns NULL if the something cannot be loaded.
4630 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4632 #ifdef MONO_ARCH_AOT_SUPPORTED
4633 guint8 *p, *target, *plt_entry;
4635 MonoAotModule *module = (MonoAotModule*)aot_module;
4636 gboolean res, no_ftnptr = FALSE;
4638 gboolean using_gsharedvt = FALSE;
4640 mono_error_init (error);
4642 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4644 p = &module->blob [plt_info_offset];
4646 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4648 mp = mono_mempool_new ();
4649 res = decode_patch (module, mp, &ji, p, &p);
4652 mono_mempool_destroy (mp);
4656 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4657 using_gsharedvt = TRUE;
4661 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4662 * it would create a trampoline, and we don't need that.
4663 * We could do this only if the method does not need the special handling
4664 * in mono_magic_trampoline ().
4666 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) &&
4667 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4668 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4669 if (!mono_error_ok (error)) {
4670 mono_mempool_destroy (mp);
4675 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4676 if (!mono_error_ok (error)) {
4677 mono_mempool_destroy (mp);
4683 * The trampoline expects us to return a function descriptor on platforms which use
4684 * it, but resolve_patch_target returns a direct function pointer for some type of
4685 * patches, so have to translate between the two.
4686 * FIXME: Clean this up, but how ?
4688 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) {
4689 /* These should already have a function descriptor */
4690 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4691 /* Our function descriptors have a 0 environment, gcc created ones don't */
4692 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4693 g_assert (((gpointer*)target) [2] == 0);
4696 } else if (!no_ftnptr) {
4697 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4698 g_assert (((gpointer*)target) [2] != 0);
4700 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4703 mono_mempool_destroy (mp);
4705 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4706 plt_entry = mono_aot_get_plt_entry (code);
4707 g_assert (plt_entry);
4708 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4712 g_assert_not_reached ();
4720 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4721 * method in the module is loaded to avoid committing memory by writing to it.
4722 * LOCKING: Assumes the AMODULE lock is held.
4725 init_plt (MonoAotModule *amodule)
4730 if (amodule->plt_inited)
4733 if (amodule->info.plt_size <= 1) {
4734 amodule->plt_inited = TRUE;
4738 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4741 * Initialize the PLT entries in the GOT to point to the default targets.
4744 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4745 for (i = 1; i < amodule->info.plt_size; ++i)
4746 /* All the default entries point to the AOT trampoline */
4747 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4749 amodule->plt_inited = TRUE;
4753 * mono_aot_get_plt_entry:
4755 * Return the address of the PLT entry called by the code at CODE if exists.
4758 mono_aot_get_plt_entry (guint8 *code)
4760 MonoAotModule *amodule = find_aot_module (code);
4761 guint8 *target = NULL;
4767 if (is_thumb_code (amodule, code - 4))
4768 return mono_arm_get_thumb_plt_entry (code);
4771 #ifdef MONO_ARCH_AOT_SUPPORTED
4772 target = mono_arch_get_call_target (code);
4774 g_assert_not_reached ();
4778 while (target != NULL) {
4779 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4782 // Add 4 since mono_arch_get_call_target assumes we're passing
4783 // the instruction after the actual branch instruction.
4784 target = mono_arch_get_call_target (target + 4);
4789 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4797 * mono_aot_get_plt_info_offset:
4799 * Return the PLT info offset belonging to the plt entry called by CODE.
4802 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4804 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4806 g_assert (plt_entry);
4808 /* The offset is embedded inside the code after the plt entry */
4809 #ifdef MONO_ARCH_AOT_SUPPORTED
4810 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4812 g_assert_not_reached ();
4818 mono_create_ftnptr_malloc (guint8 *code)
4820 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4821 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4823 ftnptr->code = code;
4834 * mono_aot_register_jit_icall:
4836 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4837 * be called from mono_arch_init () during startup.
4840 mono_aot_register_jit_icall (const char *name, gpointer addr)
4842 /* No need for locking */
4843 if (!aot_jit_icall_hash)
4844 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4845 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4849 * load_function_full:
4851 * Load the function named NAME from the aot image.
4854 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4858 int n_patches, pindex;
4861 guint32 info_offset;
4865 symbol = g_strdup_printf ("%s", name);
4866 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4869 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4871 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4875 symbol = g_strdup_printf ("%s_p", name);
4876 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4879 /* Nothing to patch */
4882 info_offset = *(guint32*)p;
4884 MonoTrampInfo *tinfo;
4885 guint32 code_size, uw_info_len, uw_offset;
4887 /* Construct a MonoTrampInfo from the data in the AOT image */
4889 p += sizeof (guint32);
4890 code_size = *(guint32*)p;
4891 p += sizeof (guint32);
4892 uw_offset = *(guint32*)p;
4893 uw_info = amodule->unwind_info + uw_offset;
4894 uw_info_len = decode_value (uw_info, &uw_info);
4896 tinfo = g_new0 (MonoTrampInfo, 1);
4897 tinfo->code = (guint8 *)code;
4898 tinfo->code_size = code_size;
4899 tinfo->uw_info = uw_info;
4900 tinfo->uw_info_len = uw_info_len;
4905 p = amodule->blob + info_offset;
4907 /* Similar to mono_aot_load_method () */
4909 n_patches = decode_value (p, &p);
4912 MonoJumpInfo *patches;
4915 mp = mono_mempool_new ();
4917 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4920 for (pindex = 0; pindex < n_patches; ++pindex) {
4921 MonoJumpInfo *ji = &patches [pindex];
4925 if (amodule->got [got_slots [pindex]])
4929 * When this code is executed, the runtime may not be initalized yet, so
4930 * resolve the patch info by hand.
4932 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4933 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4934 target = mono_get_lmf_addr;
4935 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
4936 target = mono_thread_force_interruption_checkpoint_noraise;
4937 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
4938 target = mono_interruption_checkpoint_from_trampoline;
4939 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
4940 target = mono_exception_from_token;
4941 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
4942 target = mono_get_throw_exception ();
4943 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
4944 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
4945 target = (gpointer)mono_get_trampoline_func (tramp_type2);
4946 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
4947 /* atoll is needed because the the offset is unsigned */
4951 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
4952 g_assert (res == 1);
4953 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4954 target = mono_create_ftnptr_malloc ((guint8 *)target);
4955 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
4956 target = mono_thread_get_and_clear_pending_exception;
4957 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
4958 target = debugger_agent_single_step_from_context;
4959 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
4960 target = debugger_agent_breakpoint_from_context;
4961 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
4962 target = mono_get_throw_exception_addr ();
4963 } else if (strstr (ji->data.name, "generic_trampoline_")) {
4964 target = mono_aot_get_trampoline (ji->data.name);
4965 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
4966 /* Registered by mono_arch_init () */
4967 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
4969 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
4970 g_assert_not_reached ();
4974 /* Hopefully the code doesn't have patches which need method or
4977 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
4978 mono_error_assert_ok (&error);
4982 amodule->got [got_slots [pindex]] = target;
4987 mono_mempool_destroy (mp);
4994 load_function (MonoAotModule *amodule, const char *name)
4996 return load_function_full (amodule, name, NULL);
4999 static MonoAotModule*
5000 get_mscorlib_aot_module (void)
5003 MonoAotModule *amodule;
5005 image = mono_defaults.corlib;
5007 amodule = (MonoAotModule *)image->aot_module;
5009 amodule = mscorlib_aot_module;
5015 no_trampolines (void)
5017 g_assert_not_reached ();
5021 * Return the trampoline identified by NAME from the mscorlib AOT file.
5022 * On ppc64, this returns a function descriptor.
5025 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5027 MonoAotModule *amodule = get_mscorlib_aot_module ();
5029 if (mono_llvm_only) {
5031 return no_trampolines;
5034 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5038 mono_aot_get_trampoline (const char *name)
5040 MonoTrampInfo *out_tinfo;
5043 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5044 mono_tramp_info_register (out_tinfo, NULL);
5050 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5052 gpointer symbol_addr;
5053 guint32 uw_offset, uw_info_len;
5056 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5061 uw_offset = *(guint32*)symbol_addr;
5062 uw_info = amodule->unwind_info + uw_offset;
5063 uw_info_len = decode_value (uw_info, &uw_info);
5065 info->uw_info = uw_info;
5066 info->uw_info_len = uw_info_len;
5068 /* If successful return the address of the following data */
5069 return (guint32*)symbol_addr + 1;
5073 #include <mach/mach.h>
5075 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5078 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5080 char symbol_name [128];
5082 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5083 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5084 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5085 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5086 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5087 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5088 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5089 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5091 g_assert_not_reached ();
5093 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5096 static unsigned char*
5097 get_new_trampoline_from_page (int tramp_type)
5099 MonoAotModule *amodule;
5101 TrampolinePage *page;
5104 vm_address_t addr, taddr;
5106 vm_prot_t prot, max_prot;
5107 int psize, specific_trampoline_size;
5108 unsigned char *code;
5110 specific_trampoline_size = 2 * sizeof (gpointer);
5112 mono_aot_page_lock ();
5113 page = trampoline_pages [tramp_type];
5114 if (page && page->trampolines < page->trampolines_end) {
5115 code = page->trampolines;
5116 page->trampolines += specific_trampoline_size;
5117 mono_aot_page_unlock ();
5120 mono_aot_page_unlock ();
5121 /* the trampoline template page is in the mscorlib module */
5122 image = mono_defaults.corlib;
5125 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5127 amodule = image->aot_module;
5130 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5131 tpage = load_function (amodule, "specific_trampolines_page");
5132 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5133 tpage = load_function (amodule, "rgctx_trampolines_page");
5134 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5135 tpage = load_function (amodule, "imt_trampolines_page");
5136 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5137 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5139 g_error ("Incorrect tramp type for trampolines page");
5141 /*g_warning ("loaded trampolines page at %x", tpage);*/
5143 /* avoid the unlikely case of looping forever */
5146 while (page == NULL && count-- > 0) {
5147 MonoTrampInfo *gen_info, *sp_info;
5150 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5151 * while the second will contain the trampolines.
5153 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5154 if (ret != KERN_SUCCESS) {
5155 g_error ("Cannot allocate memory for trampolines: %d", ret);
5158 /*g_warning ("allocated trampoline double page at %x", addr);*/
5159 /* replace the second page with a remapped trampoline page */
5160 taddr = addr + psize;
5161 vm_deallocate (mach_task_self (), taddr, psize);
5162 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5163 if (ret != KERN_SUCCESS) {
5164 /* someone else got the page, try again */
5165 vm_deallocate (mach_task_self (), addr, psize);
5168 /*g_warning ("remapped trampoline page at %x", taddr);*/
5170 mono_aot_page_lock ();
5171 page = trampoline_pages [tramp_type];
5172 /* some other thread already allocated, so use that to avoid wasting memory */
5173 if (page && page->trampolines < page->trampolines_end) {
5174 code = page->trampolines;
5175 page->trampolines += specific_trampoline_size;
5176 mono_aot_page_unlock ();
5177 vm_deallocate (mach_task_self (), addr, psize);
5178 vm_deallocate (mach_task_self (), taddr, psize);
5181 page = (TrampolinePage*)addr;
5182 page->next = trampoline_pages [tramp_type];
5183 trampoline_pages [tramp_type] = page;
5184 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5185 page->trampolines_end = (void*)(taddr + psize - 64);
5186 code = page->trampolines;
5187 page->trampolines += specific_trampoline_size;
5188 mono_aot_page_unlock ();
5190 /* Register the generic part at the beggining of the trampoline page */
5191 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5192 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5193 mono_tramp_info_register (gen_info, NULL);
5196 * Registering each specific trampoline produces a lot of
5197 * MonoJitInfo structures. Jump trampolines are also registered
5200 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5201 /* Register the rest of the page as a single trampoline */
5202 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5203 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5204 mono_tramp_info_register (sp_info, NULL);
5208 g_error ("Cannot allocate more trampoline pages: %d", ret);
5213 static unsigned char*
5214 get_new_trampoline_from_page (int tramp_type)
5216 g_error ("Page trampolines not supported.");
5223 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5228 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5230 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5233 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5239 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5244 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5246 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5249 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5255 get_new_imt_trampoline_from_page (gpointer arg)
5260 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5262 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5264 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5270 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5275 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5277 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5280 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5284 /* Return a given kind of trampoline */
5285 /* FIXME set unwind info for these trampolines */
5287 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5290 MonoAotModule *amodule = get_mscorlib_aot_module ();
5291 int index, tramp_size;
5293 /* Currently, we keep all trampolines in the mscorlib AOT image */
5294 image = mono_defaults.corlib;
5296 *out_amodule = amodule;
5301 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5303 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5305 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5306 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5307 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5309 index = amodule->trampoline_index [tramp_type] ++;
5313 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5315 tramp_size = amodule->info.trampoline_size [tramp_type];
5318 *out_tramp_size = tramp_size;
5320 return amodule->trampolines [tramp_type] + (index * tramp_size);
5324 no_specific_trampoline (void)
5326 g_assert_not_reached ();
5330 * Return a specific trampoline from the AOT file.
5333 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5335 MonoAotModule *amodule;
5336 guint32 got_offset, tramp_size;
5337 guint8 *code, *tramp;
5338 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5339 static gboolean inited;
5340 static guint32 num_trampolines;
5342 if (mono_llvm_only) {
5344 return no_specific_trampoline;
5351 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5360 if (!generic_trampolines [tramp_type]) {
5363 symbol = mono_get_generic_trampoline_name (tramp_type);
5364 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5368 tramp = (guint8 *)generic_trampolines [tramp_type];
5371 if (USE_PAGE_TRAMPOLINES) {
5372 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5375 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5377 amodule->got [got_offset] = tramp;
5378 amodule->got [got_offset + 1] = arg1;
5382 *code_len = tramp_size;
5388 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5390 MonoAotModule *amodule;
5394 if (USE_PAGE_TRAMPOLINES) {
5395 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5397 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5399 amodule->got [got_offset] = ctx;
5400 amodule->got [got_offset + 1] = addr;
5403 /* The caller expects an ftnptr */
5404 return mono_create_ftnptr (mono_domain_get (), code);
5408 mono_aot_get_unbox_trampoline (MonoMethod *method)
5410 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5411 MonoAotModule *amodule;
5413 guint32 *ut, *ut_end, *entry;
5414 int low, high, entry_index = 0;
5415 gpointer symbol_addr;
5416 MonoTrampInfo *tinfo;
5418 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5419 method_index = find_aot_method (method, &amodule);
5420 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5421 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5422 method_index = find_aot_method (shared, &amodule);
5424 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5425 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5426 method_index = find_aot_method (shared, &amodule);
5428 g_assert (method_index != 0xffffff);
5430 amodule = (MonoAotModule *)method->klass->image->aot_module;
5434 if (amodule->info.llvm_get_unbox_tramp) {
5435 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5436 code = get_tramp (method_index);
5442 ut = amodule->unbox_trampolines;
5443 ut_end = amodule->unbox_trampolines_end;
5445 /* Do a binary search in the sorted table */
5448 high = (ut_end - ut);
5449 while (low < high) {
5450 entry_index = (low + high) / 2;
5451 entry = &ut [entry_index];
5452 if (entry [0] < method_index) {
5453 low = entry_index + 1;
5454 } else if (entry [0] > method_index) {
5461 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5464 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5466 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5468 mono_tramp_info_free (tinfo);
5472 tinfo->code_size = *(guint32*)symbol_addr;
5473 mono_tramp_info_register (tinfo, NULL);
5475 /* The caller expects an ftnptr */
5476 return mono_create_ftnptr (mono_domain_get (), code);
5480 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5484 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5485 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5486 static int count = 0;
5489 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5490 static gpointer addr;
5494 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5497 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5498 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5499 info [0] = GUINT_TO_POINTER (slot);
5500 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5501 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5502 return mono_create_ftnptr (mono_domain_get (), code);
5505 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5506 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5508 /* The caller expects an ftnptr */
5509 return mono_create_ftnptr (mono_domain_get (), code);
5515 g_assert_not_reached ();
5519 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5524 int i, index, real_count;
5525 MonoAotModule *amodule;
5528 return no_imt_thunk;
5531 for (i = 0; i < count; ++i) {
5532 MonoIMTCheckItem *item = imt_entries [i];
5534 if (item->is_equals)
5538 /* Save the entries into an array */
5539 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5541 for (i = 0; i < count; ++i) {
5542 MonoIMTCheckItem *item = imt_entries [i];
5544 if (!item->is_equals)
5547 g_assert (item->key);
5549 buf [(index * 2)] = item->key;
5550 if (item->has_target_code) {
5551 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5552 *p = item->value.target_code;
5553 buf [(index * 2) + 1] = p;
5555 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5559 buf [(index * 2)] = NULL;
5560 buf [(index * 2) + 1] = fail_tramp;
5562 if (USE_PAGE_TRAMPOLINES) {
5563 code = get_new_imt_trampoline_from_page (buf);
5565 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5567 amodule->got [got_offset] = buf;
5574 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5576 MonoAotModule *amodule;
5580 if (USE_PAGE_TRAMPOLINES) {
5581 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5583 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5585 amodule->got [got_offset] = arg;
5586 amodule->got [got_offset + 1] = addr;
5589 /* The caller expects an ftnptr */
5590 return mono_create_ftnptr (mono_domain_get (), code);
5594 * mono_aot_set_make_unreadable:
5596 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5597 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5600 mono_aot_set_make_unreadable (gboolean unreadable)
5604 make_unreadable = unreadable;
5606 if (make_unreadable && !inited) {
5607 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5612 MonoAotModule *module;
5617 find_map (gpointer key, gpointer value, gpointer user_data)
5619 MonoAotModule *module = (MonoAotModule*)value;
5620 FindMapUserData *data = (FindMapUserData*)user_data;
5623 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5624 data->module = module;
5627 static MonoAotModule*
5628 find_module_for_addr (void *ptr)
5630 FindMapUserData data;
5632 if (!make_unreadable)
5636 data.ptr = (guint8*)ptr;
5639 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5646 * mono_aot_is_pagefault:
5648 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5649 * within memory allocated by this module.
5652 mono_aot_is_pagefault (void *ptr)
5654 if (!make_unreadable)
5658 * Not signal safe, but SIGSEGV's are synchronous, and
5659 * this is only turned on by a MONO_DEBUG option.
5661 return find_module_for_addr (ptr) != NULL;
5665 * mono_aot_handle_pagefault:
5667 * Handle a pagefault caused by an unreadable page by making it readable again.
5670 mono_aot_handle_pagefault (void *ptr)
5672 #ifndef PLATFORM_WIN32
5673 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5677 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5678 g_assert (res == 0);
5689 mono_aot_init (void)
5694 mono_aot_cleanup (void)
5699 mono_aot_find_method_index (MonoMethod *method)
5701 g_assert_not_reached ();
5706 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5711 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5716 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5721 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5726 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5732 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5738 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5744 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5750 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5756 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5762 mono_aot_get_plt_entry (guint8 *code)
5768 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5774 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5779 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5785 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5787 g_assert_not_reached ();
5793 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5795 g_assert_not_reached ();
5800 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5802 g_assert_not_reached ();
5807 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5809 g_assert_not_reached ();
5814 mono_aot_get_trampoline (const char *name)
5816 g_assert_not_reached ();
5821 mono_aot_get_unbox_trampoline (MonoMethod *method)
5823 g_assert_not_reached ();
5828 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5830 g_assert_not_reached ();
5835 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5837 g_assert_not_reached ();
5842 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5844 g_assert_not_reached ();
5849 mono_aot_set_make_unreadable (gboolean unreadable)
5854 mono_aot_is_pagefault (void *ptr)
5860 mono_aot_handle_pagefault (void *ptr)
5865 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5867 g_assert_not_reached ();
5872 mono_aot_register_jit_icall (const char *name, gpointer addr)