2 * aot-runtime.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
9 * Copyright 2003-2011 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc.
14 #include <sys/types.h>
20 #ifdef HAVE_SYS_MMAN_H
29 #ifdef HAVE_EXECINFO_H
36 #ifdef HAVE_SYS_WAIT_H
37 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
40 #include <mono/metadata/abi-details.h>
41 #include <mono/metadata/tabledefs.h>
42 #include <mono/metadata/class.h>
43 #include <mono/metadata/object.h>
44 #include <mono/metadata/tokentype.h>
45 #include <mono/metadata/appdomain.h>
46 #include <mono/metadata/debug-helpers.h>
47 #include <mono/metadata/assembly.h>
48 #include <mono/metadata/metadata-internals.h>
49 #include <mono/metadata/marshal.h>
50 #include <mono/metadata/gc-internals.h>
51 #include <mono/metadata/threads-types.h>
52 #include <mono/metadata/mono-endian.h>
53 #include <mono/utils/mono-logger-internals.h>
54 #include <mono/utils/mono-mmap.h>
55 #include <mono/utils/mono-compiler.h>
56 #include <mono/utils/mono-counters.h>
57 #include <mono/utils/mono-digest.h>
60 #include "seq-points.h"
62 #include "debugger-agent.h"
63 #include "aot-compiler.h"
64 #include "jit-icalls.h"
69 #define ENABLE_AOT_CACHE
72 /* Number of got entries shared between the JIT and LLVM GOT */
73 #define N_COMMON_GOT_ENTRIES 10
75 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
76 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
77 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
84 typedef struct MonoAotModule {
86 /* Pointer to the Global Offset Table */
90 GHashTable *name_cache;
91 GHashTable *extra_methods;
92 /* Maps methods to their code */
93 GHashTable *method_to_code;
94 /* Maps pointers into the method info to the methods themselves */
95 GHashTable *method_ref_to_method;
96 MonoAssemblyName *image_names;
98 MonoAssembly *assembly;
99 MonoImage **image_table;
100 guint32 image_table_len;
101 gboolean out_of_date;
103 gboolean got_initializing;
106 guint8 *jit_code_start;
107 guint8 *jit_code_end;
108 guint8 *llvm_code_start;
109 guint8 *llvm_code_end;
113 /* Maps method indexes to their code */
115 /* Sorted array of method addresses */
116 gpointer *sorted_methods;
117 /* Method indexes for each method in sorted_methods */
118 int *sorted_method_indexes;
119 /* The length of the two tables above */
120 int sorted_methods_len;
121 guint32 *method_info_offsets;
122 guint32 *ex_info_offsets;
123 guint32 *class_info_offsets;
124 guint32 *got_info_offsets;
125 guint32 *llvm_got_info_offsets;
126 guint32 *methods_loaded;
127 guint16 *class_name_table;
128 guint32 *extra_method_table;
129 guint32 *extra_method_info_offsets;
130 guint32 *unbox_trampolines;
131 guint32 *unbox_trampolines_end;
132 guint32 *unbox_trampoline_addresses;
135 /* Points to the mono EH data created by LLVM */
136 guint8 *mono_eh_frame;
138 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
139 gpointer tables [MONO_AOT_TABLE_NUM];
140 /* Points to the trampolines */
141 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
142 /* The first unused trampoline of each kind */
143 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
145 gboolean use_page_trampolines;
147 MonoAotFileInfo info;
152 JitInfoMap *async_jit_info_table;
158 unsigned char *trampolines;
159 unsigned char *trampolines_end;
162 static GHashTable *aot_modules;
163 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
164 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
165 static mono_mutex_t aot_mutex;
168 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
169 * AOT modules registered by mono_aot_register_module ().
171 static GHashTable *static_aot_modules;
174 * Maps MonoJitInfo* to the aot module they belong to, this can be different
175 * from ji->method->klass->image's aot module for generic instances.
177 static GHashTable *ji_to_amodule;
180 * Whenever to AOT compile loaded assemblies on demand and store them in
183 static gboolean enable_aot_cache = FALSE;
185 static gboolean mscorlib_aot_loaded;
188 static gint32 mono_last_aot_method = -1;
190 static gboolean make_unreadable = FALSE;
191 static guint32 name_table_accesses = 0;
192 static guint32 n_pagefaults = 0;
194 /* Used to speed-up find_aot_module () */
195 static gsize aot_code_low_addr = (gssize)-1;
196 static gsize aot_code_high_addr = 0;
199 static gint32 async_jit_info_size;
201 static GHashTable *aot_jit_icall_hash;
204 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
206 #define USE_PAGE_TRAMPOLINES 0
209 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
210 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
211 static mono_mutex_t aot_page_mutex;
213 static MonoAotModule *mscorlib_aot_module;
215 /* Embedding API hooks to load the AOT data for AOT images compiled with MONO_AOT_FILE_FLAG_SEPARATE_DATA */
216 static MonoLoadAotDataFunc aot_data_load_func;
217 static MonoFreeAotDataFunc aot_data_free_func;
218 static gpointer aot_data_func_user_data;
221 init_plt (MonoAotModule *info);
224 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
227 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context);
230 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
233 amodule_lock (MonoAotModule *amodule)
235 mono_os_mutex_lock (&amodule->mutex);
239 amodule_unlock (MonoAotModule *amodule)
241 mono_os_mutex_unlock (&amodule->mutex);
247 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
248 * found, and sets the loader error if SET_ERROR is TRUE.
251 load_image (MonoAotModule *amodule, int index, gboolean set_error)
253 MonoAssembly *assembly;
254 MonoImageOpenStatus status;
256 g_assert (index < amodule->image_table_len);
258 if (amodule->image_table [index])
259 return amodule->image_table [index];
260 if (amodule->out_of_date)
263 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
265 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable because dependency %s is not found.\n", amodule->aot_name, amodule->image_names [index].name);
266 amodule->out_of_date = TRUE;
269 char *full_name = mono_stringify_assembly_name (&amodule->image_names [index]);
270 mono_loader_set_error_assembly_load (full_name, FALSE);
276 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
277 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').\n", amodule->aot_name, amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
278 amodule->out_of_date = TRUE;
282 amodule->image_table [index] = assembly->image;
283 return assembly->image;
287 decode_value (guint8 *ptr, guint8 **rptr)
292 if ((b & 0x80) == 0){
295 } else if ((b & 0x40) == 0){
296 len = ((b & 0x3f) << 8 | ptr [1]);
298 } else if (b != 0xff) {
299 len = ((b & 0x1f) << 24) |
306 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
312 //printf ("DECODE: %d.\n", len);
317 * mono_aot_get_offset:
319 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
323 mono_aot_get_offset (guint32 *table, int index)
325 int i, group, ngroups, index_entry_size;
326 int start_offset, offset, group_size;
327 guint8 *data_start, *p;
328 guint32 *index32 = NULL;
329 guint16 *index16 = NULL;
331 /* noffsets = table [0]; */
332 group_size = table [1];
334 index_entry_size = table [3];
335 group = index / group_size;
337 if (index_entry_size == 2) {
338 index16 = (guint16*)&table [4];
339 data_start = (guint8*)&index16 [ngroups];
340 p = data_start + index16 [group];
342 index32 = (guint32*)&table [4];
343 data_start = (guint8*)&index32 [ngroups];
344 p = data_start + index32 [group];
347 /* offset will contain the value of offsets [group * group_size] */
348 offset = start_offset = decode_value (p, &p);
349 for (i = group * group_size + 1; i <= index; ++i) {
350 offset += decode_value (p, &p);
353 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
359 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
362 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
365 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
367 static MonoGenericInst*
368 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
371 MonoType **type_argv;
372 MonoGenericInst *inst;
375 type_argc = decode_value (p, &p);
376 type_argv = g_new0 (MonoType*, type_argc);
378 for (i = 0; i < type_argc; ++i) {
379 MonoClass *pclass = decode_klass_ref (module, p, &p);
384 type_argv [i] = &pclass->byval_arg;
387 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
396 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
403 argc = decode_value (p, &p);
406 ctx->class_inst = decode_generic_inst (module, p, &p);
407 if (!ctx->class_inst)
411 argc = decode_value (p, &p);
414 ctx->method_inst = decode_generic_inst (module, p, &p);
415 if (!ctx->method_inst)
424 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
428 MonoClass *klass = NULL, *eklass;
429 guint32 token, rank, idx;
433 reftype = decode_value (p, &p);
440 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
441 idx = decode_value (p, &p);
442 image = load_image (module, 0, TRUE);
445 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
446 g_assert (mono_error_ok (&error));
448 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
449 idx = decode_value (p, &p);
450 image = load_image (module, decode_value (p, &p), TRUE);
453 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
454 g_assert (mono_error_ok (&error));
456 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
457 token = decode_value (p, &p);
458 image = module->assembly->image;
461 klass = mono_class_get_checked (image, token, &error);
462 g_assert (mono_error_ok (&error));
464 case MONO_AOT_TYPEREF_GINST: {
466 MonoGenericContext ctx;
469 gclass = decode_klass_ref (module, p, &p);
472 g_assert (gclass->generic_container);
474 memset (&ctx, 0, sizeof (ctx));
475 ctx.class_inst = decode_generic_inst (module, p, &p);
478 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
479 klass = mono_class_from_mono_type (type);
480 mono_metadata_free_type (type);
483 case MONO_AOT_TYPEREF_VAR: {
485 MonoGenericContainer *container = NULL;
486 gboolean has_constraint = decode_value (p, &p);
488 if (has_constraint) {
489 MonoClass *par_klass;
490 MonoType *gshared_constraint;
492 gshared_constraint = decode_type (module, p, &p);
493 if (!gshared_constraint)
496 par_klass = decode_klass_ref (module, p, &p);
500 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
501 klass = mono_class_from_mono_type (t);
503 int type = decode_value (p, &p);
504 int num = decode_value (p, &p);
505 gboolean is_not_anonymous = decode_value (p, &p);
507 if (is_not_anonymous) {
508 gboolean is_method = decode_value (p, &p);
511 MonoMethod *method_def;
512 g_assert (type == MONO_TYPE_MVAR);
513 method_def = decode_resolve_method_ref (module, p, &p);
517 container = mono_method_get_generic_container (method_def);
519 MonoClass *class_def;
520 g_assert (type == MONO_TYPE_VAR);
521 class_def = decode_klass_ref (module, p, &p);
525 container = class_def->generic_container;
528 // We didn't decode is_method, so we have to infer it from type enum.
529 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
532 t = g_new0 (MonoType, 1);
533 t->type = (MonoTypeEnum)type;
534 if (is_not_anonymous) {
535 t->data.generic_param = mono_generic_container_get_param (container, num);
538 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
539 par->owner = container;
541 t->data.generic_param = par;
542 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
544 // FIXME: Maybe use types directly to avoid
545 // the overhead of creating MonoClass-es
546 klass = mono_class_from_mono_type (t);
552 case MONO_AOT_TYPEREF_ARRAY:
554 rank = decode_value (p, &p);
555 eklass = decode_klass_ref (module, p, &p);
556 klass = mono_array_class_get (eklass, rank);
558 case MONO_AOT_TYPEREF_PTR: {
561 t = decode_type (module, p, &p);
564 klass = mono_class_from_mono_type (t);
568 case MONO_AOT_TYPEREF_BLOB_INDEX: {
569 guint32 offset = decode_value (p, &p);
572 p2 = module->blob + offset;
573 klass = decode_klass_ref (module, p2, &p2);
577 g_assert_not_reached ();
580 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
585 static MonoClassField*
586 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
588 MonoClass *klass = decode_klass_ref (module, buf, &buf);
595 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
599 return mono_class_get_field (klass, token);
603 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
607 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
612 t = (MonoType *)g_malloc0 (sizeof (MonoType));
615 if (*p == MONO_TYPE_PINNED) {
618 } else if (*p == MONO_TYPE_BYREF) {
626 t->type = (MonoTypeEnum)*p;
631 case MONO_TYPE_BOOLEAN:
645 case MONO_TYPE_STRING:
646 case MONO_TYPE_OBJECT:
647 case MONO_TYPE_TYPEDBYREF:
649 case MONO_TYPE_VALUETYPE:
650 case MONO_TYPE_CLASS:
651 t->data.klass = decode_klass_ref (module, p, &p);
653 case MONO_TYPE_SZARRAY:
654 t->data.klass = decode_klass_ref (module, p, &p);
660 t->data.type = decode_type (module, p, &p);
662 case MONO_TYPE_GENERICINST: {
664 MonoGenericContext ctx;
668 gclass = decode_klass_ref (module, p, &p);
671 g_assert (gclass->generic_container);
673 memset (&ctx, 0, sizeof (ctx));
674 ctx.class_inst = decode_generic_inst (module, p, &p);
677 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
678 klass = mono_class_from_mono_type (type);
679 t->data.generic_class = klass->generic_class;
682 case MONO_TYPE_ARRAY: {
683 MonoArrayType *array;
686 // FIXME: memory management
687 array = g_new0 (MonoArrayType, 1);
688 array->eklass = decode_klass_ref (module, p, &p);
691 array->rank = decode_value (p, &p);
692 array->numsizes = decode_value (p, &p);
695 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
696 for (i = 0; i < array->numsizes; ++i)
697 array->sizes [i] = decode_value (p, &p);
699 array->numlobounds = decode_value (p, &p);
700 if (array->numlobounds)
701 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
702 for (i = 0; i < array->numlobounds; ++i)
703 array->lobounds [i] = decode_value (p, &p);
704 t->data.array = array;
708 case MONO_TYPE_MVAR: {
709 MonoClass *klass = decode_klass_ref (module, p, &p);
712 t->data.generic_param = klass->byval_arg.data.generic_param;
716 g_assert_not_reached ();
724 // FIXME: Error handling, memory management
726 static MonoMethodSignature*
727 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
729 MonoMethodSignature *sig;
731 int i, gen_param_count = 0, param_count, call_conv;
733 gboolean hasthis, explicit_this, has_gen_params;
737 has_gen_params = (flags & 0x10) != 0;
738 hasthis = (flags & 0x20) != 0;
739 explicit_this = (flags & 0x40) != 0;
740 call_conv = flags & 0x0F;
743 gen_param_count = decode_value (p, &p);
744 param_count = decode_value (p, &p);
745 if (target && param_count != target->param_count)
747 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
748 sig->param_count = param_count;
749 sig->sentinelpos = -1;
750 sig->hasthis = hasthis;
751 sig->explicit_this = explicit_this;
752 sig->call_convention = call_conv;
753 sig->generic_param_count = gen_param_count;
754 sig->ret = decode_type (module, p, &p);
755 for (i = 0; i < param_count; ++i) {
756 if (*p == MONO_TYPE_SENTINEL) {
757 g_assert (sig->call_convention == MONO_CALL_VARARG);
758 sig->sentinelpos = i;
761 sig->params [i] = decode_type (module, p, &p);
764 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
765 sig->sentinelpos = sig->param_count;
772 static MonoMethodSignature*
773 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
775 return decode_signature_with_target (module, NULL, buf, endbuf);
779 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
781 MonoMethodSignature *sig;
785 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
786 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
792 /* Stores information returned by decode_method_ref () */
797 gboolean no_aot_trampoline;
801 * decode_method_ref_with_target:
803 * Decode a method reference, storing the image/token into a MethodRef structure.
804 * This avoids loading metadata for the method if the caller does not need it. If the method has
805 * no token, then it is loaded from metadata and ref->method is set to the method instance.
806 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
807 * couldn't resolve to TARGET, and return FALSE.
808 * There are some kinds of method references which only support a non-null TARGET.
809 * This means that its not possible to decode this into a method, only to check
810 * that the method reference matches a given method. This is normally not a problem
811 * as these wrappers only occur in the extra_methods table, where we already have
812 * a method we want to lookup.
815 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
817 guint32 image_index, value;
818 MonoImage *image = NULL;
821 memset (ref, 0, sizeof (MethodRef));
823 value = decode_value (p, &p);
824 image_index = value >> 24;
826 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
827 ref->no_aot_trampoline = TRUE;
828 value = decode_value (p, &p);
829 image_index = value >> 24;
832 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
833 if (target && target->wrapper_type)
837 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
839 guint32 wrapper_type;
841 wrapper_type = decode_value (p, &p);
843 if (target && target->wrapper_type != wrapper_type)
847 image = mono_defaults.corlib;
849 switch (wrapper_type) {
850 #ifndef DISABLE_REMOTING
851 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
852 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
856 mono_class_init (m->klass);
860 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
863 case MONO_WRAPPER_PROXY_ISINST: {
864 MonoClass *klass = decode_klass_ref (module, p, &p);
867 ref->method = mono_marshal_get_proxy_cancast (klass);
870 case MONO_WRAPPER_LDFLD:
871 case MONO_WRAPPER_LDFLDA:
872 case MONO_WRAPPER_STFLD:
873 case MONO_WRAPPER_ISINST: {
874 MonoClass *klass = decode_klass_ref (module, p, &p);
877 if (wrapper_type == MONO_WRAPPER_LDFLD)
878 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
879 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
880 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
881 else if (wrapper_type == MONO_WRAPPER_STFLD)
882 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
883 else if (wrapper_type == MONO_WRAPPER_ISINST)
884 ref->method = mono_marshal_get_isinst (klass);
886 g_assert_not_reached ();
889 case MONO_WRAPPER_LDFLD_REMOTE:
890 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
892 case MONO_WRAPPER_STFLD_REMOTE:
893 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
896 case MONO_WRAPPER_ALLOC: {
897 int atype = decode_value (p, &p);
899 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
901 g_error ("Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
904 case MONO_WRAPPER_WRITE_BARRIER: {
905 ref->method = mono_gc_get_write_barrier ();
908 case MONO_WRAPPER_STELEMREF: {
909 int subtype = decode_value (p, &p);
911 if (subtype == WRAPPER_SUBTYPE_NONE) {
912 ref->method = mono_marshal_get_stelemref ();
913 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
916 kind = decode_value (p, &p);
918 /* Can't decode this */
921 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
922 info = mono_marshal_get_wrapper_info (target);
925 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
926 ref->method = target;
933 g_assert_not_reached ();
937 case MONO_WRAPPER_SYNCHRONIZED: {
938 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
942 ref->method = mono_marshal_get_synchronized_wrapper (m);
945 case MONO_WRAPPER_UNKNOWN: {
946 int subtype = decode_value (p, &p);
948 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
949 MonoClass *klass = decode_klass_ref (module, p, &p);
956 if (klass != target->klass)
959 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
960 if (strcmp (target->name, "PtrToStructure"))
962 ref->method = mono_marshal_get_ptr_to_struct (klass);
964 if (strcmp (target->name, "StructureToPtr"))
966 ref->method = mono_marshal_get_struct_to_ptr (klass);
968 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
969 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
973 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
974 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
975 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
979 ref->method = mono_marshal_get_array_accessor_wrapper (m);
980 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
981 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
982 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
983 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
984 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
985 MonoMethodSignature *sig = decode_signature (module, p, &p);
988 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
989 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
990 MonoMethodSignature *sig = decode_signature (module, p, &p);
993 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
995 g_assert_not_reached ();
999 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1000 int subtype = decode_value (p, &p);
1002 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1003 int rank = decode_value (p, &p);
1004 int elem_size = decode_value (p, &p);
1006 ref->method = mono_marshal_get_array_address (rank, elem_size);
1007 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1010 m = decode_resolve_method_ref (module, p, &p);
1016 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1018 info = mono_marshal_get_wrapper_info (target);
1019 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1020 ref->method = target;
1026 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1028 int subtype = decode_value (p, &p);
1031 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1036 if (strcmp (target->name, name) != 0)
1038 ref->method = target;
1040 m = decode_resolve_method_ref (module, p, &p);
1045 /* This should only happen when looking for an extra method */
1048 if (mono_marshal_method_from_wrapper (target) == m)
1049 ref->method = target;
1055 case MONO_WRAPPER_CASTCLASS: {
1056 int subtype = decode_value (p, &p);
1058 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1059 ref->method = mono_marshal_get_castclass_with_cache ();
1060 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1061 ref->method = mono_marshal_get_isinst_with_cache ();
1063 g_assert_not_reached ();
1066 case MONO_WRAPPER_RUNTIME_INVOKE: {
1067 int subtype = decode_value (p, &p);
1072 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1073 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1075 ref->method = target;
1076 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1077 /* Direct wrapper */
1078 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1082 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1083 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1084 /* Virtual direct wrapper */
1085 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1089 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1091 MonoMethodSignature *sig;
1093 sig = decode_signature_with_target (module, NULL, p, &p);
1094 info = mono_marshal_get_wrapper_info (target);
1097 if (info->subtype != subtype)
1099 g_assert (info->d.runtime_invoke.sig);
1100 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1101 ref->method = target;
1107 case MONO_WRAPPER_DELEGATE_INVOKE:
1108 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1109 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1110 gboolean is_inflated = decode_value (p, &p);
1111 WrapperSubtype subtype;
1115 MonoMethod *invoke, *wrapper;
1117 klass = decode_klass_ref (module, p, &p);
1121 switch (wrapper_type) {
1122 case MONO_WRAPPER_DELEGATE_INVOKE:
1123 invoke = mono_get_delegate_invoke (klass);
1124 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1126 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1127 invoke = mono_get_delegate_begin_invoke (klass);
1128 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1130 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1131 invoke = mono_get_delegate_end_invoke (klass);
1132 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1135 g_assert_not_reached ();
1140 * Due to the way mini_get_shared_method () works, we could end up with
1141 * multiple copies of the same wrapper.
1143 if (wrapper->klass != target->klass)
1145 ref->method = target;
1147 ref->method = wrapper;
1151 * These wrappers are associated with a signature, not with a method.
1152 * Since we can't decode them into methods, they need a target method.
1157 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1158 subtype = (WrapperSubtype)decode_value (p, &p);
1159 info = mono_marshal_get_wrapper_info (target);
1161 if (info->subtype != subtype)
1164 if (subtype != WRAPPER_SUBTYPE_NONE)
1168 if (sig_matches_target (module, target, p, &p))
1169 ref->method = target;
1175 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1179 m = decode_resolve_method_ref (module, p, &p);
1182 klass = decode_klass_ref (module, p, &p);
1185 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1189 g_assert_not_reached ();
1191 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1192 image_index = decode_value (p, &p);
1193 ref->token = decode_value (p, &p);
1195 image = load_image (module, image_index, TRUE);
1198 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1201 MonoGenericContext ctx;
1204 * These methods do not have a token which resolves them, so we
1205 * resolve them immediately.
1207 klass = decode_klass_ref (module, p, &p);
1211 if (target && target->klass != klass)
1214 image_index = decode_value (p, &p);
1215 ref->token = decode_value (p, &p);
1217 image = load_image (module, image_index, TRUE);
1221 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, &error);
1223 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1227 memset (&ctx, 0, sizeof (ctx));
1229 if (FALSE && klass->generic_class) {
1230 ctx.class_inst = klass->generic_class->context.class_inst;
1231 ctx.method_inst = NULL;
1233 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1235 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1238 memset (&ctx, 0, sizeof (ctx));
1240 if (!decode_generic_context (module, &ctx, p, &p))
1243 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1245 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1247 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1251 klass = decode_klass_ref (module, p, &p);
1254 method_type = decode_value (p, &p);
1255 switch (method_type) {
1257 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1260 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1263 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1266 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1269 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1272 g_assert_not_reached ();
1275 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1276 image_index = decode_value (p, &p);
1277 value = decode_value (p, &p);
1280 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1282 image = load_image (module, image_index, TRUE);
1295 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1297 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1301 * decode_resolve_method_ref_with_target:
1303 * Similar to decode_method_ref, but resolve and return the method itself.
1306 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1313 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1320 result = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
1322 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1327 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1329 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1332 #ifdef ENABLE_AOT_CACHE
1338 * - Add options for controlling the cache size
1339 * - Handle full cache by deleting old assemblies lru style
1340 * - Maybe add a threshold after an assembly is AOT compiled
1341 * - Add options for enabling this for specific main assemblies
1344 /* The cache directory */
1345 static char *cache_dir;
1347 /* The number of assemblies AOTed in this run */
1348 static int cache_count;
1350 /* Whenever to AOT in-process */
1351 static gboolean in_process;
1354 collect_assemblies (gpointer data, gpointer user_data)
1356 MonoAssembly *ass = data;
1357 GSList **l = user_data;
1359 *l = g_slist_prepend (*l, ass);
1362 #define SHA1_DIGEST_LENGTH 20
1365 * get_aot_config_hash:
1367 * Return a hash for all the version information an AOT module depends on.
1369 static G_GNUC_UNUSED char*
1370 get_aot_config_hash (MonoAssembly *assembly)
1373 GSList *l, *assembly_list = NULL;
1376 guint8 digest [SHA1_DIGEST_LENGTH];
1379 build_info = mono_get_runtime_build_info ();
1381 s = g_string_new (build_info);
1383 mono_assembly_foreach (collect_assemblies, &assembly_list);
1386 * The assembly list includes the current assembly as well, no need
1389 for (l = assembly_list; l; l = l->next) {
1390 MonoAssembly *ass = l->data;
1392 g_string_append (s, "_");
1393 g_string_append (s, ass->aname.name);
1394 g_string_append (s, "_");
1395 g_string_append (s, ass->image->guid);
1398 for (i = 0; i < s->len; ++i) {
1399 if (!isalnum (s->str [i]) && s->str [i] != '-')
1403 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1405 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1406 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1407 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1409 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1411 g_string_free (s, TRUE);
1417 aot_cache_init (void)
1421 enable_aot_cache = TRUE;
1426 * aot_cache_load_module:
1428 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1431 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1433 MonoAotCacheConfig *config;
1435 char *fname, *tmp2, *aot_options, *failure_fname;
1447 if (image_is_dynamic (assembly->image))
1450 /* Check in the list of assemblies enabled for aot caching */
1451 config = mono_get_aot_cache_config ();
1455 MonoDomain *domain = mono_domain_get ();
1456 MonoAssembly *entry_assembly = domain->entry_assembly;
1458 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1459 for (l = config->apps; l; l = l->next) {
1462 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1470 for (l = config->assemblies; l; l = l->next) {
1473 if (!strcmp (assembly->aname.name, n))
1483 home = g_get_home_dir ();
1486 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1487 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1488 g_mkdir_with_parents (cache_dir, 0777);
1492 * The same assembly can be used in multiple configurations, i.e. multiple
1493 * versions of the runtime, with multiple versions of dependent assemblies etc.
1494 * To handle this, we compute a version string containing all this information, hash it,
1495 * and use the hash as a filename suffix.
1497 hash = get_aot_config_hash (assembly);
1499 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1500 fname = g_build_filename (cache_dir, tmp2, NULL);
1504 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1505 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1508 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1512 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1514 * Can't AOT this during startup, so we AOT it when called later from
1515 * mono_aot_get_method ().
1519 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1521 /* Only AOT one assembly per run to avoid slowing down execution too much */
1522 if (cache_count > 0)
1526 /* Check for previous failure */
1527 failure_fname = g_strdup_printf ("%s.failure", fname);
1528 failure_file = fopen (failure_fname, "r");
1530 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1531 g_free (failure_fname);
1534 g_free (failure_fname);
1535 fclose (failure_file);
1538 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1541 * We need to invoke the AOT compiler here. There are multiple approaches:
1542 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1543 * its hard to make the new process load the same set of assemblies.
1544 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1546 * - fork a new process and do the work there.
1549 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1550 /* Maybe due this in another thread ? */
1551 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1553 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1554 failure_fname = g_strdup_printf ("%s.failure", fname);
1555 failure_file = fopen (failure_fname, "a+");
1556 fclose (failure_file);
1557 g_free (failure_fname);
1559 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1563 * - Avoid waiting for the aot process to finish ?
1564 * (less overhead, but multiple processes could aot the same assembly at the same time)
1573 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1574 logfile = fopen (logfile_name, "a+");
1575 g_free (logfile_name);
1577 dup2 (fileno (logfile), 1);
1578 dup2 (fileno (logfile), 2);
1580 aot_options = g_strdup_printf ("outfile=%s", fname);
1581 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1589 waitpid (pid, &exit_status, 0);
1590 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1591 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1593 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1597 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1605 aot_cache_init (void)
1610 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1618 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1622 guint16 *table, *entry;
1625 char *symbol = (char*)name;
1628 symbol = g_strdup_printf ("_%s", name);
1631 /* The first entry points to the hash */
1632 table = (guint16 *)globals [0];
1635 table_size = table [0];
1638 hash = mono_metadata_str_hash (symbol) % table_size;
1640 entry = &table [hash * 2];
1642 /* Search the hash for the index into the globals table */
1644 while (entry [0] != 0) {
1645 guint32 index = entry [0] - 1;
1646 guint32 next = entry [1];
1648 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1650 if (!strcmp (globals [index * 2], symbol)) {
1651 global_index = index;
1656 entry = &table [next * 2];
1662 if (global_index != -1)
1663 *value = globals [global_index * 2 + 1];
1670 char *err = mono_dl_symbol (module, name, value);
1678 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1680 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1682 find_symbol (amodule->sofile, amodule->globals, name, value);
1686 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1688 aot_data_load_func = load_func;
1689 aot_data_free_func = free_func;
1690 aot_data_func_user_data = user_data;
1693 /* Load the separate aot data file for ASSEMBLY */
1695 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1701 if (aot_data_load_func) {
1702 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1708 * Use <assembly name>.aotdata as the default implementation if no callback is given
1710 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1711 map = mono_file_map_open (filename);
1713 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1720 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1724 gboolean usable = TRUE;
1725 gboolean full_aot, safepoints;
1726 guint32 excluded_cpu_optimizations;
1728 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1729 msg = g_strdup_printf ("doesn't match assembly");
1733 build_info = mono_get_runtime_build_info ();
1734 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1735 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1738 g_free (build_info);
1740 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1742 if (mono_aot_only && !full_aot) {
1743 msg = g_strdup_printf ("not compiled with --aot=full");
1746 if (!mono_aot_only && full_aot) {
1747 msg = g_strdup_printf ("compiled with --aot=full");
1750 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1751 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1755 /* mono_arch_find_imt_method () requires this */
1756 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1757 msg = g_strdup_printf ("compiled against LLVM");
1760 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1761 msg = g_strdup_printf ("not compiled against LLVM");
1765 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1766 msg = g_strdup_printf ("not compiled for debugging");
1770 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1771 if (info->opts & excluded_cpu_optimizations) {
1772 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1776 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1777 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1781 if (info->gc_name_index != -1) {
1782 char *gc_name = (char*)&blob [info->gc_name_index];
1783 const char *current_gc_name = mono_gc_get_gc_name ();
1785 if (strcmp (current_gc_name, gc_name) != 0) {
1786 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1791 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1793 if (!safepoints && mono_threads_is_coop_enabled ()) {
1794 msg = g_strdup_printf ("not compiled with safepoints");
1803 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1806 get_call_table_entry (void *table, int index)
1808 #if defined(TARGET_ARM)
1813 ins_addr = (guint32*)table + index;
1815 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1817 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1818 return (char*)ins_addr + (offset * 2) + 8 + 1;
1820 offset = (((int)ins & 0xffffff) << 8) >> 8;
1821 return (char*)ins_addr + (offset * 4) + 8;
1823 #elif defined(TARGET_ARM64)
1824 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1825 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1826 /* The callee expects an ip which points after the call */
1827 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1829 g_assert_not_reached ();
1837 * Initialize the shared got entries for AMODULE.
1840 init_amodule_got (MonoAotModule *amodule)
1844 MonoJumpInfo *patches;
1845 guint32 got_offsets [128];
1848 /* These can't be initialized in load_aot_module () */
1849 if (amodule->shared_got [0] || amodule->got_initializing)
1852 amodule->got_initializing = TRUE;
1854 mp = mono_mempool_new ();
1855 npatches = amodule->info.nshared_got_entries;
1856 for (i = 0; i < npatches; ++i)
1857 got_offsets [i] = i;
1858 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1860 for (i = 0; i < npatches; ++i) {
1863 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1864 amodule->shared_got [i] = NULL;
1865 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1866 amodule->shared_got [i] = NULL;
1867 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1868 amodule->shared_got [i] = NULL;
1869 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1870 amodule->shared_got [i] = amodule->assembly->image;
1871 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1872 if (mono_defaults.corlib) {
1873 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1875 if (mscorlib_amodule)
1876 amodule->shared_got [i] = mscorlib_amodule->got;
1878 amodule->shared_got [i] = amodule->got;
1880 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1881 amodule->shared_got [i] = amodule;
1883 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE);
1888 for (i = 0; i < npatches; ++i)
1889 amodule->got [i] = amodule->shared_got [i];
1891 if (amodule->llvm_got) {
1892 for (i = 0; i < npatches; ++i)
1893 amodule->llvm_got [i] = amodule->shared_got [i];
1896 mono_mempool_destroy (mp);
1900 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1903 MonoAotModule *amodule;
1905 gboolean usable = TRUE;
1906 char *version_symbol = NULL;
1908 gpointer *globals = NULL;
1909 MonoAotFileInfo *info = NULL;
1911 gboolean do_load_image = TRUE;
1912 int align_double, align_int64;
1913 guint8 *aot_data = NULL;
1915 if (mono_compile_aot)
1918 if (assembly->image->aot_module)
1920 * Already loaded. This can happen because the assembly loading code might invoke
1921 * the assembly load hooks multiple times for the same assembly.
1925 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1929 if (static_aot_modules)
1930 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1938 /* Statically linked AOT module */
1939 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1940 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1941 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1942 globals = (void **)info->globals;
1946 if (enable_aot_cache)
1947 sofile = aot_cache_load_module (assembly, &aot_name);
1950 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1952 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1955 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1958 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);
1959 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1961 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1968 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
1969 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1976 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1977 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1980 if (version_symbol) {
1981 /* Old file format */
1982 version = atoi (version_symbol);
1985 version = info->version;
1988 if (version != MONO_AOT_FILE_VERSION) {
1989 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
1995 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
1996 aot_data = open_aot_data (assembly, info, &handle);
1998 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2000 blob = (guint8 *)info->blob;
2003 usable = check_usable (assembly, info, blob, &msg);
2007 if (mono_aot_only) {
2008 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
2010 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
2015 mono_dl_close (sofile);
2016 assembly->image->aot_module = NULL;
2021 align_double = MONO_ABI_ALIGNOF (double);
2022 align_int64 = MONO_ABI_ALIGNOF (gint64);
2023 g_assert (info->double_align == align_double);
2024 g_assert (info->long_align == align_int64);
2025 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2027 amodule = g_new0 (MonoAotModule, 1);
2028 amodule->aot_name = aot_name;
2029 amodule->assembly = assembly;
2031 memcpy (&amodule->info, info, sizeof (*info));
2033 amodule->got = (void **)amodule->info.jit_got;
2034 amodule->llvm_got = (void **)amodule->info.llvm_got;
2035 amodule->globals = globals;
2036 amodule->sofile = sofile;
2037 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2038 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2039 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2041 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2042 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2043 amodule->tables [i] = aot_data + info->table_offsets [i];
2046 mono_os_mutex_init_recursive (&amodule->mutex);
2048 /* Read image table */
2050 guint32 table_len, i;
2053 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2054 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2056 table = (char *)info->image_table;
2059 table_len = *(guint32*)table;
2060 table += sizeof (guint32);
2061 amodule->image_table = g_new0 (MonoImage*, table_len);
2062 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2063 amodule->image_guids = g_new0 (char*, table_len);
2064 amodule->image_table_len = table_len;
2065 for (i = 0; i < table_len; ++i) {
2066 MonoAssemblyName *aname = &(amodule->image_names [i]);
2068 aname->name = g_strdup (table);
2069 table += strlen (table) + 1;
2070 amodule->image_guids [i] = g_strdup (table);
2071 table += strlen (table) + 1;
2073 aname->culture = g_strdup (table);
2074 table += strlen (table) + 1;
2075 memcpy (aname->public_key_token, table, strlen (table) + 1);
2076 table += strlen (table) + 1;
2078 table = (char *)ALIGN_PTR_TO (table, 8);
2079 aname->flags = *(guint32*)table;
2081 aname->major = *(guint32*)table;
2083 aname->minor = *(guint32*)table;
2085 aname->build = *(guint32*)table;
2087 aname->revision = *(guint32*)table;
2092 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2093 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2094 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2095 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2096 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2097 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2098 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2099 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2100 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2101 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2102 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2103 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2105 amodule->blob = info->blob;
2106 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2107 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2108 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2109 amodule->class_name_table = (guint16 *)info->class_name_table;
2110 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2111 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2112 amodule->got_info_offsets = info->got_info_offsets;
2113 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2115 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2116 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2117 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2118 amodule->unwind_info = (guint8 *)info->unwind_info;
2119 amodule->mem_begin = amodule->jit_code_start;
2120 amodule->mem_end = (guint8 *)info->mem_end;
2121 amodule->plt = (guint8 *)info->plt;
2122 amodule->plt_end = (guint8 *)info->plt_end;
2123 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2124 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2125 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2126 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2127 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2129 if (!strcmp (assembly->aname.name, "mscorlib"))
2130 mscorlib_aot_module = amodule;
2132 /* Compute method addresses */
2133 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2134 for (i = 0; i < amodule->info.nmethods; ++i) {
2137 if (amodule->info.llvm_get_method) {
2138 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2140 addr = get_method (i);
2143 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2144 if (!addr && amodule->info.method_addresses) {
2145 addr = get_call_table_entry (amodule->info.method_addresses, i);
2147 if (addr == amodule->info.method_addresses)
2151 amodule->methods [i] = GINT_TO_POINTER (-1);
2153 amodule->methods [i] = addr;
2156 if (make_unreadable) {
2157 #ifndef TARGET_WIN32
2159 guint8 *page_start, *page_end;
2162 addr = amodule->mem_begin;
2164 len = amodule->mem_end - amodule->mem_begin;
2166 /* Round down in both directions to avoid modifying data which is not ours */
2167 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2168 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2169 if (page_end > page_start) {
2170 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2171 g_assert (err == 0);
2176 /* Compute the boundaries of LLVM code */
2177 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2178 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2182 if (amodule->jit_code_start) {
2183 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2184 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2186 if (amodule->llvm_code_start) {
2187 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2188 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2191 g_hash_table_insert (aot_modules, assembly, amodule);
2194 if (amodule->jit_code_start)
2195 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2196 if (amodule->llvm_code_start)
2197 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2199 assembly->image->aot_module = amodule;
2201 if (mono_aot_only && !mono_llvm_only) {
2203 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2204 amodule->use_page_trampolines = code != NULL;
2205 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2209 * Register the plt region as a single trampoline so we can unwind from this code
2211 mono_tramp_info_register (
2212 mono_tramp_info_create (
2215 amodule->plt_end - amodule->plt,
2217 mono_unwind_get_cie_program ()
2223 * Since we store methoddef and classdef tokens when referring to methods/classes in
2224 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2225 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2226 * non-lazily, since we can't handle out-of-date errors later.
2227 * The cached class info also depends on the exact assemblies.
2229 #if defined(__native_client__)
2230 /* TODO: Don't 'load_image' on mscorlib due to a */
2231 /* recursive loading problem. This should be */
2232 /* removed if mscorlib is loaded from disk. */
2233 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2234 do_load_image = TRUE;
2236 do_load_image = FALSE;
2239 if (do_load_image) {
2240 for (i = 0; i < amodule->image_table_len; ++i)
2241 load_image (amodule, i, FALSE);
2244 if (amodule->out_of_date) {
2245 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);
2247 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);
2250 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2254 * mono_aot_register_module:
2256 * This should be called by embedding code to register AOT modules statically linked
2257 * into the executable. AOT_INFO should be the value of the
2258 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2261 mono_aot_register_module (gpointer *aot_info)
2265 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2267 g_assert (info->version == MONO_AOT_FILE_VERSION);
2269 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2270 globals = (void **)info->globals;
2274 aname = (char *)info->assembly_name;
2276 /* This could be called before startup */
2280 if (!static_aot_modules)
2281 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2283 g_hash_table_insert (static_aot_modules, aname, info);
2290 mono_aot_init (void)
2292 mono_os_mutex_init_recursive (&aot_mutex);
2293 mono_os_mutex_init_recursive (&aot_page_mutex);
2294 aot_modules = g_hash_table_new (NULL, NULL);
2296 #ifndef __native_client__
2297 mono_install_assembly_load_hook (load_aot_module, NULL);
2299 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2301 if (g_getenv ("MONO_LASTAOT"))
2302 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2307 mono_aot_cleanup (void)
2309 if (aot_jit_icall_hash)
2310 g_hash_table_destroy (aot_jit_icall_hash);
2312 g_hash_table_destroy (aot_modules);
2316 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2322 info->vtable_size = decode_value (buf, &buf);
2323 if (info->vtable_size == -1)
2326 flags = decode_value (buf, &buf);
2327 info->ghcimpl = (flags >> 0) & 0x1;
2328 info->has_finalize = (flags >> 1) & 0x1;
2329 info->has_cctor = (flags >> 2) & 0x1;
2330 info->has_nested_classes = (flags >> 3) & 0x1;
2331 info->blittable = (flags >> 4) & 0x1;
2332 info->has_references = (flags >> 5) & 0x1;
2333 info->has_static_refs = (flags >> 6) & 0x1;
2334 info->no_special_static_fields = (flags >> 7) & 0x1;
2335 info->is_generic_container = (flags >> 8) & 0x1;
2337 if (info->has_cctor) {
2338 res = decode_method_ref (module, &ref, buf, &buf);
2341 info->cctor_token = ref.token;
2343 if (info->has_finalize) {
2344 res = decode_method_ref (module, &ref, buf, &buf);
2347 info->finalize_image = ref.image;
2348 info->finalize_token = ref.token;
2351 info->instance_size = decode_value (buf, &buf);
2352 info->class_size = decode_value (buf, &buf);
2353 info->packing_size = decode_value (buf, &buf);
2354 info->min_align = decode_value (buf, &buf);
2362 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2365 MonoClass *klass = vtable->klass;
2366 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2368 MonoCachedClassInfo class_info;
2373 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2376 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2379 err = decode_cached_class_info (amodule, &class_info, p, &p);
2383 for (i = 0; i < slot; ++i)
2384 decode_method_ref (amodule, &ref, p, &p);
2386 res = decode_method_ref (amodule, &ref, p, &p);
2389 if (ref.no_aot_trampoline)
2392 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2395 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2399 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2401 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2405 if (klass->rank || !amodule)
2408 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2410 err = decode_cached_class_info (amodule, res, p, &p);
2418 * mono_aot_get_class_from_name:
2420 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2421 * using a cache stored in the AOT file.
2422 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2424 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2428 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2430 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2431 guint16 *table, *entry;
2434 char full_name_buf [1024];
2436 const char *name2, *name_space2;
2438 guint32 cols [MONO_TYPEDEF_SIZE];
2439 GHashTable *nspace_table;
2441 if (!amodule || !amodule->class_name_table)
2444 amodule_lock (amodule);
2448 /* First look in the cache */
2449 if (!amodule->name_cache)
2450 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2451 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2453 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2455 amodule_unlock (amodule);
2460 table_size = amodule->class_name_table [0];
2461 table = amodule->class_name_table + 1;
2463 if (name_space [0] == '\0')
2464 full_name = g_strdup_printf ("%s", name);
2466 if (strlen (name_space) + strlen (name) < 1000) {
2467 sprintf (full_name_buf, "%s.%s", name_space, name);
2468 full_name = full_name_buf;
2470 full_name = g_strdup_printf ("%s.%s", name_space, name);
2473 hash = mono_metadata_str_hash (full_name) % table_size;
2474 if (full_name != full_name_buf)
2477 entry = &table [hash * 2];
2479 if (entry [0] != 0) {
2480 t = &image->tables [MONO_TABLE_TYPEDEF];
2483 guint32 index = entry [0];
2484 guint32 next = entry [1];
2485 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2487 name_table_accesses ++;
2489 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2491 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2492 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2494 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2496 amodule_unlock (amodule);
2497 *klass = mono_class_get_checked (image, token, &error);
2498 if (!mono_error_ok (&error))
2499 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2503 amodule_lock (amodule);
2504 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2505 if (!nspace_table) {
2506 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2507 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2509 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2510 amodule_unlock (amodule);
2516 entry = &table [next * 2];
2523 amodule_unlock (amodule);
2528 /* Compute the boundaries of the LLVM code for AMODULE. */
2530 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2533 int version, fde_count;
2536 if (amodule->info.llvm_get_method) {
2537 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2539 *code_start = (guint8 *)get_method (-1);
2540 *code_end = (guint8 *)get_method (-2);
2542 g_assert (*code_end > *code_start);
2546 g_assert (amodule->mono_eh_frame);
2548 p = amodule->mono_eh_frame;
2550 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2554 g_assert (version == 3);
2557 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2559 fde_count = *(guint32*)p;
2563 if (fde_count > 0) {
2564 *code_start = (guint8 *)amodule->methods [table [0]];
2565 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2573 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2575 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2582 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2584 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2591 * decode_llvm_mono_eh_frame:
2593 * Decode the EH information emitted by our modified LLVM compiler and construct a
2594 * MonoJitInfo structure from it.
2595 * LOCKING: Acquires the domain lock.
2598 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2599 MonoMethod *method, guint8 *code, guint32 code_len,
2600 MonoJitExceptionInfo *clauses, int num_clauses,
2601 MonoJitInfoFlags flags,
2603 int *this_reg, int *this_offset)
2605 guint8 *p, *code1, *code2;
2606 guint8 *fde, *cie, *code_start, *code_end;
2607 int version, fde_count;
2609 int i, pos, left, right;
2610 MonoJitExceptionInfo *ei;
2611 guint32 fde_len, ei_len, nested_len, nindex;
2612 gpointer *type_info;
2614 MonoLLVMFDEInfo info;
2616 if (!amodule->mono_eh_frame) {
2617 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2618 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2619 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2623 g_assert (amodule->mono_eh_frame && code);
2625 p = amodule->mono_eh_frame;
2627 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2631 g_assert (version == 3);
2633 /* func_encoding = *p; */
2635 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2637 fde_count = *(guint32*)p;
2641 /* There is +1 entry in the table */
2642 cie = p + ((fde_count + 1) * 8);
2644 /* Binary search in the table to find the entry for code */
2648 pos = (left + right) / 2;
2650 /* The table contains method index/fde offset pairs */
2651 g_assert (table [(pos * 2)] != -1);
2652 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2653 if (pos + 1 == fde_count) {
2654 code2 = amodule->llvm_code_end;
2656 g_assert (table [(pos + 1) * 2] != -1);
2657 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2662 else if (code >= code2)
2668 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2669 if (pos + 1 == fde_count) {
2670 /* The +1 entry in the table contains the length of the last method */
2671 int len = table [(pos + 1) * 2];
2672 code_end = code_start + len;
2674 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2677 code_len = code_end - code_start;
2679 g_assert (code >= code_start && code < code_end);
2681 if (is_thumb_code (amodule, code_start))
2682 /* Clear thumb flag */
2683 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2685 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2686 /* This won't overflow because there is +1 entry in the table */
2687 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2689 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2691 ei_len = info.ex_info_len;
2692 type_info = info.type_info;
2693 *this_reg = info.this_reg;
2694 *this_offset = info.this_offset;
2696 /* Count number of nested clauses */
2698 for (i = 0; i < ei_len; ++i) {
2699 /* This might be unaligned */
2700 gint32 cindex1 = read32 (type_info [i]);
2703 for (l = nesting [cindex1]; l; l = l->next)
2708 * LLVM might represent one IL region with multiple regions, so have to
2709 * allocate a new JI.
2712 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2713 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2715 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2716 /* This signals that unwind_info points to a normal cached unwind info */
2717 jinfo->from_aot = 0;
2718 jinfo->from_llvm = 1;
2720 for (i = 0; i < ei_len; ++i) {
2722 * clauses contains the original IL exception info saved by the AOT
2723 * compiler, we have to combine that with the information produced by LLVM
2725 /* The type_info entries contain IL clause indexes */
2726 int clause_index = read32 (type_info [i]);
2727 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2728 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2730 g_assert (clause_index < num_clauses);
2731 jei->flags = orig_jei->flags;
2732 jei->data.catch_class = orig_jei->data.catch_class;
2734 jei->try_start = ei [i].try_start;
2735 jei->try_end = ei [i].try_end;
2736 jei->handler_start = ei [i].handler_start;
2737 jei->clause_index = clause_index;
2739 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2740 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2741 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2742 /* Make sure we transition to thumb when a handler starts */
2743 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2747 /* See exception_cb () in mini-llvm.c as to why this is needed */
2749 for (i = 0; i < ei_len; ++i) {
2750 gint32 cindex1 = read32 (type_info [i]);
2753 for (l = nesting [cindex1]; l; l = l->next) {
2754 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2755 MonoJitExceptionInfo *nesting_ei;
2756 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2758 nesting_ei = &jinfo->clauses [nindex];
2761 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2762 nesting_ei->flags = nesting_clause->flags;
2763 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2764 nesting_ei->clause_index = nesting_cindex;
2767 g_assert (nindex == ei_len + nested_len);
2773 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2777 if (async_context) {
2778 res = mono_domain_alloc0_lock_free (domain, size);
2779 InterlockedExchangeAdd (&async_jit_info_size, size);
2781 res = mono_domain_alloc0 (domain, size);
2787 * LOCKING: Acquires the domain lock.
2788 * In async context, this is async safe.
2791 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2792 MonoMethod *method, guint8* ex_info,
2793 guint8 *code, guint32 code_len)
2795 int i, buf_len, num_clauses, len;
2797 MonoJitInfoFlags flags = JIT_INFO_NONE;
2798 guint unwind_info, eflags;
2799 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2800 gboolean from_llvm, has_gc_map;
2802 int try_holes_info_size, num_holes;
2803 int this_reg = 0, this_offset = 0;
2806 /* Load the method info from the AOT file */
2807 async = mono_thread_info_is_async_context ();
2810 eflags = decode_value (p, &p);
2811 has_generic_jit_info = (eflags & 1) != 0;
2812 has_dwarf_unwind_info = (eflags & 2) != 0;
2813 has_clauses = (eflags & 4) != 0;
2814 has_seq_points = (eflags & 8) != 0;
2815 from_llvm = (eflags & 16) != 0;
2816 has_try_block_holes = (eflags & 32) != 0;
2817 has_gc_map = (eflags & 64) != 0;
2818 has_arch_eh_jit_info = (eflags & 128) != 0;
2820 if (has_dwarf_unwind_info) {
2821 unwind_info = decode_value (p, &p);
2822 g_assert (unwind_info < (1 << 30));
2824 unwind_info = decode_value (p, &p);
2826 if (has_generic_jit_info)
2827 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2829 if (has_try_block_holes) {
2830 num_holes = decode_value (p, &p);
2831 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2832 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2834 num_holes = try_holes_info_size = 0;
2837 if (has_arch_eh_jit_info) {
2838 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2839 /* Overwrite the original code_len which includes alignment padding */
2840 code_len = decode_value (p, &p);
2843 /* Exception table */
2845 num_clauses = decode_value (p, &p);
2850 MonoJitExceptionInfo *clauses;
2857 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2860 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2861 nesting = g_new0 (GSList*, num_clauses);
2863 for (i = 0; i < num_clauses; ++i) {
2864 MonoJitExceptionInfo *ei = &clauses [i];
2866 ei->flags = decode_value (p, &p);
2868 if (decode_value (p, &p))
2869 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2871 ei->clause_index = i;
2873 ei->try_offset = decode_value (p, &p);
2874 ei->try_len = decode_value (p, &p);
2875 ei->handler_offset = decode_value (p, &p);
2876 ei->handler_len = decode_value (p, &p);
2878 /* Read the list of nesting clauses */
2880 int nesting_index = decode_value (p, &p);
2881 if (nesting_index == -1)
2883 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2887 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2890 for (i = 0; i < num_clauses; ++i)
2891 g_slist_free (nesting [i]);
2894 len = mono_jit_info_size (flags, num_clauses, num_holes);
2895 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2896 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2898 for (i = 0; i < jinfo->num_clauses; ++i) {
2899 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2901 ei->flags = decode_value (p, &p);
2903 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2904 /* Not used for catch clauses */
2905 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2906 ei->exvar_offset = decode_value (p, &p);
2908 ei->exvar_offset = decode_value (p, &p);
2911 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2912 ei->data.filter = code + decode_value (p, &p);
2914 int len = decode_value (p, &p);
2920 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2924 ei->try_start = code + decode_value (p, &p);
2925 ei->try_end = code + decode_value (p, &p);
2926 ei->handler_start = code + decode_value (p, &p);
2929 jinfo->unwind_info = unwind_info;
2930 jinfo->domain_neutral = 0;
2931 jinfo->from_aot = 1;
2934 if (has_try_block_holes) {
2935 MonoTryBlockHoleTableJitInfo *table;
2937 g_assert (jinfo->has_try_block_holes);
2939 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2942 table->num_holes = (guint16)num_holes;
2943 for (i = 0; i < num_holes; ++i) {
2944 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2945 hole->clause = decode_value (p, &p);
2946 hole->length = decode_value (p, &p);
2947 hole->offset = decode_value (p, &p);
2951 if (has_arch_eh_jit_info) {
2952 MonoArchEHJitInfo *eh_info;
2954 g_assert (jinfo->has_arch_eh_info);
2956 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
2957 eh_info->stack_size = decode_value (p, &p);
2958 eh_info->epilog_size = decode_value (p, &p);
2962 /* The rest is not needed in async mode */
2963 jinfo->async = TRUE;
2964 jinfo->d.aot_info = amodule;
2969 if (has_generic_jit_info) {
2970 MonoGenericJitInfo *gi;
2973 g_assert (jinfo->has_generic_jit_info);
2975 gi = mono_jit_info_get_generic_jit_info (jinfo);
2978 gi->nlocs = decode_value (p, &p);
2980 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
2981 for (i = 0; i < gi->nlocs; ++i) {
2982 MonoDwarfLocListEntry *entry = &gi->locations [i];
2984 entry->is_reg = decode_value (p, &p);
2985 entry->reg = decode_value (p, &p);
2987 entry->offset = decode_value (p, &p);
2989 entry->from = decode_value (p, &p);
2990 entry->to = decode_value (p, &p);
2995 gi->has_this = this_reg != -1;
2996 gi->this_reg = this_reg;
2997 gi->this_offset = this_offset;
2999 gi->has_this = decode_value (p, &p);
3000 gi->this_reg = decode_value (p, &p);
3001 gi->this_offset = decode_value (p, &p);
3005 len = decode_value (p, &p);
3009 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
3011 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
3012 if (decode_value (p, &p)) {
3014 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3016 gsctx->is_gsharedvt = TRUE;
3020 if (method && has_seq_points) {
3021 MonoSeqPointInfo *seq_points;
3023 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3025 mono_domain_lock (domain);
3026 /* This could be set already since this function can be called more than once for the same method */
3027 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3028 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3030 mono_seq_point_info_free (seq_points);
3031 mono_domain_unlock (domain);
3034 /* Load debug info */
3035 buf_len = decode_value (p, &p);
3037 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3041 int map_size = decode_value (p, &p);
3042 /* The GC map requires 4 bytes of alignment */
3043 while ((guint64)(gsize)p % 4)
3049 if (amodule != jinfo->d.method->klass->image->aot_module) {
3052 ji_to_amodule = g_hash_table_new (NULL, NULL);
3053 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3061 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3063 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3064 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3068 * mono_aot_get_unwind_info:
3070 * Return a pointer to the DWARF unwind info belonging to JI.
3073 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3075 MonoAotModule *amodule;
3077 guint8 *code = (guint8 *)ji->code_start;
3080 amodule = (MonoAotModule *)ji->d.aot_info;
3082 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3084 g_assert (ji->from_aot);
3086 if (!amodule_contains_code_addr (amodule, code)) {
3087 /* ji belongs to a different aot module than amodule */
3089 g_assert (ji_to_amodule);
3090 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3092 g_assert (amodule_contains_code_addr (amodule, code));
3096 p = amodule->unwind_info + ji->unwind_info;
3097 *unwind_info_len = decode_value (p, &p);
3102 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3104 int mid = (lo + hi) / 2;
3111 for (i = lo; i < hi; ++i)
3112 if (array [i] > array [i + 1])
3115 /* Already sorted */
3119 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3120 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3122 if (array [mid] < array [mid + 1])
3128 for (i = lo; i <= hi; i ++) {
3129 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3130 scratch [i] = array [t_lo];
3131 scratch_indexes [i] = indexes [t_lo];
3134 scratch [i] = array [t_hi];
3135 scratch_indexes [i] = indexes [t_hi];
3139 for (i = lo; i <= hi; ++i) {
3140 array [i] = scratch [i];
3141 indexes [i] = scratch_indexes [i];
3146 msort_method_addresses (gpointer *array, int *indexes, int len)
3149 int *scratch_indexes;
3151 scratch = g_new (gpointer, len);
3152 scratch_indexes = g_new (int, len);
3153 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3155 g_free (scratch_indexes);
3159 * mono_aot_find_jit_info:
3161 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3162 * to the jit info tables.
3163 * FIXME: Large sizes in the lock free allocator
3166 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3168 int pos, left, right, code_len;
3169 int method_index, table_len;
3171 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3172 MonoMethod *method = NULL;
3174 guint8 *code, *ex_info, *p;
3178 guint8 *code1, *code2;
3185 nmethods = amodule->info.nmethods;
3187 if (domain != mono_get_root_domain ())
3191 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3194 async = mono_thread_info_is_async_context ();
3196 /* Compute a sorted table mapping code to method indexes. */
3197 if (!amodule->sorted_methods) {
3199 gpointer *methods = g_new0 (gpointer, nmethods);
3200 int *method_indexes = g_new0 (int, nmethods);
3201 int methods_len = 0;
3203 for (i = 0; i < nmethods; ++i) {
3204 /* Skip the -1 entries to speed up sorting */
3205 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3207 methods [methods_len] = amodule->methods [i];
3208 method_indexes [methods_len] = i;
3211 /* Use a merge sort as this is mostly sorted */
3212 msort_method_addresses (methods, method_indexes, methods_len);
3213 for (i = 0; i < methods_len -1; ++i)
3214 g_assert (methods [i] <= methods [i + 1]);
3215 amodule->sorted_methods_len = methods_len;
3216 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3217 /* Somebody got in before us */
3219 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3220 /* Somebody got in before us */
3221 g_free (method_indexes);
3224 /* Binary search in the sorted_methods table */
3225 methods = amodule->sorted_methods;
3226 methods_len = amodule->sorted_methods_len;
3227 code = (guint8 *)addr;
3229 right = methods_len;
3231 pos = (left + right) / 2;
3233 code1 = (guint8 *)methods [pos];
3234 if (pos + 1 == methods_len) {
3235 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3236 code2 = amodule->jit_code_end;
3238 code2 = amodule->llvm_code_end;
3240 code2 = (guint8 *)methods [pos + 1];
3245 else if (code >= code2)
3251 g_assert (addr >= methods [pos]);
3252 if (pos + 1 < methods_len)
3253 g_assert (addr < methods [pos + 1]);
3254 method_index = amodule->sorted_method_indexes [pos];
3256 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3258 JitInfoMap *table = amodule->async_jit_info_table;
3262 len = table [0].method_index;
3263 for (i = 1; i < len; ++i) {
3264 if (table [i].method_index == method_index)
3265 return table [i].jinfo;
3270 code = (guint8 *)amodule->methods [method_index];
3271 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3273 if (pos == methods_len - 1) {
3274 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3275 code_len = amodule->jit_code_end - code;
3277 code_len = amodule->llvm_code_end - code;
3279 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3282 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3284 /* Might be a wrapper/extra method */
3286 if (amodule->extra_methods) {
3287 amodule_lock (amodule);
3288 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3289 amodule_unlock (amodule);
3295 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3297 * This is hit for extra methods which are called directly, so they are
3298 * not in amodule->extra_methods.
3300 table_len = amodule->extra_method_info_offsets [0];
3301 table = amodule->extra_method_info_offsets + 1;
3308 pos = ((left + right) / 2);
3310 g_assert (pos < table_len);
3312 if (table [pos * 2] < method_index)
3314 else if (table [pos * 2] > method_index)
3320 p = amodule->blob + table [(pos * 2) + 1];
3321 method = decode_resolve_method_ref (amodule, p, &p);
3323 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3327 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3328 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3330 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3337 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3339 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3341 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3343 /* Add it to the normal JitInfo tables */
3345 JitInfoMap *old_table, *new_table;
3349 * Use a simple inmutable table with linear search to cache async jit info entries.
3350 * This assumes that the number of entries is small.
3353 /* Copy the table, adding a new entry at the end */
3354 old_table = amodule->async_jit_info_table;
3356 len = old_table[0].method_index;
3359 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3361 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3362 new_table [0].method_index = len + 1;
3363 new_table [len].method_index = method_index;
3364 new_table [len].jinfo = jinfo;
3366 mono_memory_barrier ();
3367 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3371 mono_jit_info_table_add (domain, jinfo);
3374 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3375 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3382 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3390 case MONO_PATCH_INFO_METHOD:
3391 case MONO_PATCH_INFO_METHOD_JUMP:
3392 case MONO_PATCH_INFO_ICALL_ADDR:
3393 case MONO_PATCH_INFO_METHOD_RGCTX:
3394 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3398 res = decode_method_ref (aot_module, &ref, p, &p);
3402 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)) {
3403 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3404 ji->type = MONO_PATCH_INFO_ABS;
3408 ji->data.method = ref.method;
3411 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3412 if (!ji->data.method)
3413 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3415 g_assert (ji->data.method);
3416 mono_class_init (ji->data.method->klass);
3420 case MONO_PATCH_INFO_INTERNAL_METHOD:
3421 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3422 guint32 len = decode_value (p, &p);
3424 ji->data.name = (char*)p;
3428 case MONO_PATCH_INFO_METHODCONST:
3430 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3431 if (!ji->data.method)
3434 case MONO_PATCH_INFO_VTABLE:
3435 case MONO_PATCH_INFO_CLASS:
3436 case MONO_PATCH_INFO_IID:
3437 case MONO_PATCH_INFO_ADJUSTED_IID:
3439 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3440 if (!ji->data.klass)
3443 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3444 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3445 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p);
3446 if (!ji->data.del_tramp->klass)
3448 if (decode_value (p, &p)) {
3449 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3450 if (!ji->data.del_tramp->method)
3453 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3455 case MONO_PATCH_INFO_IMAGE:
3456 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
3457 if (!ji->data.image)
3460 case MONO_PATCH_INFO_FIELD:
3461 case MONO_PATCH_INFO_SFLDA:
3463 ji->data.field = decode_field_info (aot_module, p, &p);
3464 if (!ji->data.field)
3467 case MONO_PATCH_INFO_SWITCH:
3468 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3469 ji->data.table->table_size = decode_value (p, &p);
3470 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3471 ji->data.table->table = (MonoBasicBlock**)table;
3472 for (i = 0; i < ji->data.table->table_size; i++)
3473 table [i] = (gpointer)(gssize)decode_value (p, &p);
3475 case MONO_PATCH_INFO_R4: {
3478 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3479 val = decode_value (p, &p);
3480 *(float*)ji->data.target = *(float*)&val;
3483 case MONO_PATCH_INFO_R8: {
3487 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3489 val [0] = decode_value (p, &p);
3490 val [1] = decode_value (p, &p);
3491 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3492 *(double*)ji->data.target = *(double*)&v;
3495 case MONO_PATCH_INFO_LDSTR:
3496 image = load_image (aot_module, decode_value (p, &p), TRUE);
3499 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3501 case MONO_PATCH_INFO_RVA:
3502 case MONO_PATCH_INFO_DECLSEC:
3503 case MONO_PATCH_INFO_LDTOKEN:
3504 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3506 image = load_image (aot_module, decode_value (p, &p), TRUE);
3509 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3511 ji->data.token->has_context = decode_value (p, &p);
3512 if (ji->data.token->has_context) {
3513 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3518 case MONO_PATCH_INFO_EXC_NAME:
3519 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3520 if (!ji->data.klass)
3522 ji->data.name = ji->data.klass->name;
3524 case MONO_PATCH_INFO_METHOD_REL:
3525 ji->data.offset = decode_value (p, &p);
3527 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3528 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3529 case MONO_PATCH_INFO_GC_NURSERY_START:
3530 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3531 case MONO_PATCH_INFO_JIT_TLS_ID:
3533 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3534 ji->data.index = decode_value (p, &p);
3536 case MONO_PATCH_INFO_RGCTX_FETCH:
3537 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3539 MonoJumpInfoRgctxEntry *entry;
3540 guint32 offset, val;
3543 offset = decode_value (p, &p);
3544 val = decode_value (p, &p);
3546 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3547 p2 = aot_module->blob + offset;
3548 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3549 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3550 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3551 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3552 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3554 res = decode_patch (aot_module, mp, entry->data, p, &p);
3557 ji->data.rgctx_entry = entry;
3560 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3561 case MONO_PATCH_INFO_AOT_MODULE:
3562 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3564 case MONO_PATCH_INFO_SIGNATURE:
3565 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3566 ji->data.target = decode_signature (aot_module, p, &p);
3568 case MONO_PATCH_INFO_TLS_OFFSET:
3569 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3571 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3572 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3573 info->sig = decode_signature (aot_module, p, &p);
3574 g_assert (info->sig);
3575 info->method = decode_resolve_method_ref (aot_module, p, &p);
3576 g_assert (info->method);
3578 ji->data.target = info;
3581 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3582 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3585 info->method = decode_resolve_method_ref (aot_module, p, &p);
3586 g_assert (info->method);
3587 info->num_entries = decode_value (p, &p);
3588 info->count_entries = info->num_entries;
3589 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3590 for (i = 0; i < info->num_entries; ++i) {
3591 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3593 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3594 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3595 case MONO_PATCH_INFO_CLASS: {
3596 MonoClass *klass = decode_klass_ref (aot_module, p, &p);
3599 template_->data = &klass->byval_arg;
3602 case MONO_PATCH_INFO_FIELD:
3603 template_->data = decode_field_info (aot_module, p, &p);
3604 if (!template_->data)
3608 g_assert_not_reached ();
3612 ji->data.target = info;
3615 case MONO_PATCH_INFO_LDSTR_LIT: {
3616 int len = decode_value (p, &p);
3619 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3620 memcpy (s, p, len + 1);
3623 ji->data.target = s;
3626 case MONO_PATCH_INFO_VIRT_METHOD: {
3627 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3629 info->klass = decode_klass_ref (aot_module, p, &p);
3630 g_assert (info->klass);
3631 info->method = decode_resolve_method_ref (aot_module, p, &p);
3632 g_assert (info->method);
3634 ji->data.target = info;
3637 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3639 case MONO_PATCH_INFO_AOT_JIT_INFO:
3640 ji->data.index = decode_value (p, &p);
3643 g_warning ("unhandled type %d", ji->type);
3644 g_assert_not_reached ();
3658 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3659 * MonoJumpInfo structures allocated from MP.
3661 static MonoJumpInfo*
3662 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3664 MonoJumpInfo *patches;
3667 guint32 *got_info_offsets;
3672 got = amodule->llvm_got;
3673 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3676 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3679 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3680 for (i = 0; i < n_patches; ++i) {
3681 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3684 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3686 /* See load_method () for SFLDA */
3687 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3688 /* Already loaded */
3690 res = decode_patch (amodule, mp, ji, p, &p);
3699 static MonoJumpInfo*
3700 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3701 gboolean llvm, guint32 **got_slots,
3702 guint8 *buf, guint8 **endbuf)
3704 MonoJumpInfo *patches;
3710 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3711 for (pindex = 0; pindex < n_patches; ++pindex) {
3712 (*got_slots)[pindex] = decode_value (p, &p);
3715 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3717 g_free (*got_slots);
3727 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3730 * Jump addresses cannot be patched by the trampoline code since it
3731 * does not have access to the caller's address. Instead, we collect
3732 * the addresses of the GOT slots pointing to a method, and patch
3733 * them after the method has been compiled.
3735 MonoJitDomainInfo *info = domain_jit_info (domain);
3738 mono_domain_lock (domain);
3739 if (!info->jump_target_got_slot_hash)
3740 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3741 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3742 list = g_slist_prepend (list, got_slot);
3743 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3744 mono_domain_unlock (domain);
3750 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3751 * pointer to the native code of the method, or NULL if not found.
3752 * METHOD might not be set if the caller only has the image/token info.
3755 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3757 MonoJitInfo *jinfo = NULL;
3758 guint8 *code = NULL, *info;
3761 init_amodule_got (amodule);
3763 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3765 /* The caller cannot handle this */
3766 g_assert_not_reached ();
3770 if (domain != mono_get_root_domain ())
3771 /* Non shared AOT code can't be used in other appdomains */
3774 if (amodule->out_of_date)
3777 if (amodule->info.llvm_get_method) {
3779 * Obtain the method address by calling a generated function in the LLVM module.
3781 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3782 code = (guint8 *)get_method (method_index);
3787 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3788 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3793 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3794 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3796 full_name = mono_method_full_name (method, TRUE);
3797 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3802 code = (guint8 *)amodule->methods [method_index];
3805 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3807 if (!amodule->methods_loaded) {
3808 amodule_lock (amodule);
3809 if (!amodule->methods_loaded) {
3812 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3813 mono_memory_barrier ();
3814 amodule->methods_loaded = loaded;
3816 amodule_unlock (amodule);
3819 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3822 if (mono_last_aot_method != -1) {
3823 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3825 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3828 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3830 mono_error_cleanup (&error);/* FIXME don't swallow the error */
3833 char *name = mono_method_full_name (method, TRUE);
3834 g_print ("LAST AOT METHOD: %s.\n", name);
3837 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3842 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3843 res = init_llvm_method (amodule, method_index, method, NULL, NULL);
3848 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3853 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3855 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3858 full_name = mono_method_full_name (method, TRUE);
3861 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3863 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3867 amodule_lock (amodule);
3869 InterlockedIncrement (&mono_jit_stats.methods_aot);
3871 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3875 if (method && method->wrapper_type)
3876 g_hash_table_insert (amodule->method_to_code, method, code);
3878 amodule_unlock (amodule);
3880 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3885 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, &error);
3887 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3889 mono_profiler_method_jit (method);
3890 jinfo = mono_jit_info_table_find (domain, (char*)code);
3892 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3905 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3907 guint32 table_size, entry_size, hash;
3908 guint32 *table, *entry;
3910 static guint32 n_extra_decodes;
3912 if (!amodule || amodule->out_of_date)
3915 table_size = amodule->extra_method_table [0];
3916 hash = hash_full % table_size;
3917 table = amodule->extra_method_table + 1;
3920 entry = &table [hash * entry_size];
3927 guint32 key = entry [0];
3928 guint32 value = entry [1];
3929 guint32 next = entry [entry_size - 1];
3933 p = amodule->blob + key;
3936 amodule_lock (amodule);
3937 if (!amodule->method_ref_to_method)
3938 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
3939 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
3940 amodule_unlock (amodule);
3942 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
3944 * Can't catche runtime invoke wrappers since it would break
3945 * the check in decode_method_ref_with_target ().
3947 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
3948 amodule_lock (amodule);
3949 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
3950 amodule_unlock (amodule);
3959 * Special case: wrappers of shared generic methods.
3960 * This is needed because of the way mini_get_shared_method () works,
3961 * we could end up with multiple copies of the same wrapper.
3963 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
3964 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3965 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
3966 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
3968 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
3973 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
3974 method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
3975 WrapperInfo *info1 = mono_marshal_get_wrapper_info (method);
3976 WrapperInfo *info2 = mono_marshal_get_wrapper_info (m);
3978 if (info1 && info2 && info1->subtype == info2->subtype && method->klass == m->klass) {
3984 /* Methods decoded needlessly */
3986 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
3991 entry = &table [next * entry_size];
4000 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4002 g_ptr_array_add ((GPtrArray*)user_data, value);
4008 * Try finding METHOD in the extra_method table in all AOT images.
4009 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4010 * module where the method was found.
4013 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4018 guint32 hash = mono_aot_method_hash (method);
4020 /* Try the method's module first */
4021 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4022 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4023 if (index != 0xffffff)
4027 * Try all other modules.
4028 * This is needed because generic instances klass->image points to the image
4029 * containing the generic definition, but the native code is generated to the
4030 * AOT image which contains the reference.
4033 /* Make a copy to avoid doing the search inside the aot lock */
4034 modules = g_ptr_array_new ();
4036 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4040 for (i = 0; i < modules->len; ++i) {
4041 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4043 if (amodule != method->klass->image->aot_module)
4044 index = find_aot_method_in_amodule (amodule, method, hash);
4045 if (index != 0xffffff) {
4046 *out_amodule = amodule;
4051 g_ptr_array_free (modules, TRUE);
4057 mono_aot_find_method_index (MonoMethod *method)
4059 MonoAotModule *out_amodule;
4060 return find_aot_method (method, &out_amodule);
4064 init_llvm_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4066 MonoDomain *domain = mono_domain_get ();
4069 gboolean from_plt = method == NULL;
4070 int pindex, n_patches;
4072 MonoJitInfo *jinfo = NULL;
4073 guint8 *code, *info;
4075 code = (guint8 *)amodule->methods [method_index];
4076 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4081 klass = method->klass;
4082 decode_klass_ref (amodule, p, &p);
4084 klass = decode_klass_ref (amodule, p, &p);
4087 n_patches = decode_value (p, &p);
4090 MonoJumpInfo *patches;
4095 mp = mono_mempool_new ();
4097 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4102 got = amodule->llvm_got;
4106 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4107 if (patches == NULL) {
4108 mono_mempool_destroy (mp);
4112 for (pindex = 0; pindex < n_patches; ++pindex) {
4113 MonoJumpInfo *ji = &patches [pindex];
4117 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4118 * been initialized by load_method () for a static cctor before the cctor has
4119 * finished executing (#23242).
4121 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4122 /* In llvm-only made, we might encounter shared methods */
4123 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4127 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, &error);
4129 /* This cannot be resolved in mono_resolve_patch_target () */
4130 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4131 // FIXME: Lookup using the index
4132 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4133 ji->type = MONO_PATCH_INFO_ABS;
4134 ji->data.target = jinfo;
4136 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE);
4137 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4138 addr = mono_create_ftnptr (domain, addr);
4139 mono_memory_barrier ();
4140 got [got_slots [pindex]] = addr;
4141 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4142 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4144 ji->type = MONO_PATCH_INFO_NONE;
4149 mono_mempool_destroy (mp);
4152 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4153 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4156 mono_runtime_class_init (mono_class_vtable (domain, init_class));
4157 else if (from_plt && klass && !klass->generic_container)
4158 mono_runtime_class_init (mono_class_vtable (domain, klass));
4170 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4172 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4175 // FIXME: Handle failure
4176 res = init_llvm_method (amodule, method_index, NULL, NULL, NULL);
4181 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4183 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4186 MonoGenericContext *context;
4190 g_assert (this_obj);
4191 klass = this_obj->vtable->klass;
4193 amodule_lock (amodule);
4194 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4195 amodule_unlock (amodule);
4198 context = mono_method_get_context (method);
4201 res = init_llvm_method (amodule, method_index, NULL, klass, context);
4206 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4208 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4210 MonoGenericContext context = { NULL, NULL };
4211 MonoClass *klass = rgctx->class_vtable->klass;
4213 if (klass->generic_class)
4214 context.class_inst = klass->generic_class->context.class_inst;
4215 else if (klass->generic_container)
4216 context.class_inst = klass->generic_container->context.class_inst;
4217 context.method_inst = rgctx->method_inst;
4219 res = init_llvm_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4224 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4226 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4229 MonoGenericContext *context;
4232 klass = vtable->klass;
4234 amodule_lock (amodule);
4235 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4236 amodule_unlock (amodule);
4239 context = mono_method_get_context (method);
4242 res = init_llvm_method (amodule, method_index, NULL, klass, context);
4247 * mono_aot_get_method:
4249 * Return a pointer to the AOTed native code for METHOD if it can be found,
4251 * On platforms with function pointers, this doesn't return a function pointer.
4254 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4256 MonoClass *klass = method->klass;
4257 MonoMethod *orig_method = method;
4258 guint32 method_index;
4259 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4261 gboolean cache_result = FALSE;
4263 if (domain != mono_get_root_domain ())
4264 /* Non shared AOT code can't be used in other appdomains */
4267 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4268 /* This cannot be AOTed during startup, so do it now */
4269 if (!mscorlib_aot_loaded) {
4270 mscorlib_aot_loaded = TRUE;
4271 load_aot_module (klass->image->assembly, NULL);
4272 amodule = (MonoAotModule *)klass->image->aot_module;
4279 if (amodule->out_of_date)
4282 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4283 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4284 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4285 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4289 * Use the original method instead of its invoke-with-check wrapper.
4290 * This is not a problem when using full-aot, since it doesn't support
4293 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4294 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4296 g_assert (klass->inited);
4298 /* Find method index */
4299 method_index = 0xffffff;
4300 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4301 MonoMethod *orig_method = method;
4303 * For generic methods, we store the fully shared instance in place of the
4306 method = mono_method_get_declaring_generic_method (method);
4307 method_index = mono_metadata_token_index (method->token) - 1;
4309 if (mono_llvm_only) {
4310 /* Needed by mono_aot_init_gshared_method_this () */
4311 /* orig_method is a random instance but it is enough to make init_llvm_method () work */
4312 amodule_lock (amodule);
4313 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4314 amodule_unlock (amodule);
4316 } else if (method->is_inflated || !method->token) {
4317 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4318 amodule_lock (amodule);
4319 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4320 amodule_unlock (amodule);
4324 cache_result = TRUE;
4325 method_index = find_aot_method (method, &amodule);
4327 * Special case the ICollection<T> wrappers for arrays, as they cannot
4328 * be statically enumerated, and each wrapper ends up calling the same
4331 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4332 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4334 code = (guint8 *)mono_aot_get_method (domain, m);
4340 * Special case Array.GetGenericValueImpl which is a generic icall.
4341 * Generic sharing currently can't handle it, but the icall returns data using
4342 * an out parameter, so the managed-to-native wrappers can share the same code.
4344 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4347 MonoGenericContext ctx;
4348 MonoType *args [16];
4350 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4351 /* Avoid recursion */
4354 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4357 memset (&ctx, 0, sizeof (ctx));
4358 args [0] = &mono_defaults.object_class->byval_arg;
4359 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4361 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4363 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4366 * Get the code for the <object> instantiation which should be emitted into
4367 * the mscorlib aot image by the AOT compiler.
4369 code = (guint8 *)mono_aot_get_method (domain, m);
4374 /* Same for CompareExchange<T> and Exchange<T> */
4375 /* Same for Volatile.Read<T>/Write<T> */
4376 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4377 ((!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]))) ||
4378 (!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)))) ||
4379 (!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])))))) {
4382 MonoGenericContext ctx;
4383 MonoType *args [16];
4384 gpointer iter = NULL;
4386 while ((m = mono_class_get_methods (method->klass, &iter))) {
4387 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4392 memset (&ctx, 0, sizeof (ctx));
4393 args [0] = &mono_defaults.object_class->byval_arg;
4394 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4396 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4398 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4400 /* Avoid recursion */
4405 * Get the code for the <object> instantiation which should be emitted into
4406 * the mscorlib aot image by the AOT compiler.
4408 code = (guint8 *)mono_aot_get_method (domain, m);
4413 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4414 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4415 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4417 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4418 MonoMethod *array_method = info->d.array_accessor.method;
4419 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4420 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4421 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4424 m = mono_marshal_get_array_accessor_wrapper (m);
4426 code = (guint8 *)mono_aot_get_method (domain, m);
4434 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4435 /* Partial sharing */
4438 shared = mini_get_shared_method (method);
4439 method_index = find_aot_method (shared, &amodule);
4440 if (method_index != 0xffffff)
4444 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4447 /* Use the all-vt shared method since this is what was AOTed */
4448 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4449 method_index = find_aot_method (shared, &amodule);
4450 if (method_index != 0xffffff)
4451 method = mini_get_shared_method_full (method, TRUE, FALSE);
4454 if (method_index == 0xffffff) {
4455 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4458 full_name = mono_method_full_name (method, TRUE);
4459 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4465 if (method_index == 0xffffff)
4468 /* Needed by find_jit_info */
4469 amodule_lock (amodule);
4470 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4471 amodule_unlock (amodule);
4474 method_index = mono_metadata_token_index (method->token) - 1;
4477 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index);
4478 if (code && cache_result) {
4479 amodule_lock (amodule);
4480 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4481 amodule_unlock (amodule);
4487 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4491 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4493 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4499 method_index = mono_metadata_token_index (token) - 1;
4501 return load_method (domain, aot_module, image, NULL, token, method_index);
4507 } IsGotEntryUserData;
4510 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4512 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4513 MonoAotModule *aot_module = (MonoAotModule*)value;
4515 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4520 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4522 IsGotEntryUserData user_data;
4527 user_data.addr = addr;
4528 user_data.res = FALSE;
4530 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4533 return user_data.res;
4538 MonoAotModule *module;
4539 } FindAotModuleUserData;
4542 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4544 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4545 MonoAotModule *aot_module = (MonoAotModule*)value;
4547 if (amodule_contains_code_addr (aot_module, data->addr))
4548 data->module = aot_module;
4551 static inline MonoAotModule*
4552 find_aot_module (guint8 *code)
4554 FindAotModuleUserData user_data;
4559 /* Reading these need no locking */
4560 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4563 user_data.addr = code;
4564 user_data.module = NULL;
4567 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4570 return user_data.module;
4574 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4576 MonoAotModule *amodule;
4579 * Since AOT code is only used in the root domain,
4580 * mono_domain_get () != mono_get_root_domain () means the calling method
4581 * is AppDomain:InvokeInDomain, so this is the same check as in
4582 * mono_method_same_domain () but without loading the metadata for the method.
4584 if (mono_domain_get () == mono_get_root_domain ()) {
4586 amodule = find_aot_module (code);
4590 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4595 * mono_aot_plt_resolve:
4597 * This function is called by the entries in the PLT to resolve the actual method that
4598 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4599 * Returns NULL if the something cannot be loaded.
4602 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4604 #ifdef MONO_ARCH_AOT_SUPPORTED
4605 guint8 *p, *target, *plt_entry;
4607 MonoAotModule *module = (MonoAotModule*)aot_module;
4608 gboolean res, no_ftnptr = FALSE;
4610 gboolean using_gsharedvt = FALSE;
4612 mono_error_init (error);
4614 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4616 p = &module->blob [plt_info_offset];
4618 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4620 mp = mono_mempool_new ();
4621 res = decode_patch (module, mp, &ji, p, &p);
4624 mono_mempool_destroy (mp);
4628 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4629 using_gsharedvt = TRUE;
4633 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4634 * it would create a trampoline, and we don't need that.
4635 * We could do this only if the method does not need the special handling
4636 * in mono_magic_trampoline ().
4638 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) &&
4639 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4640 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4641 if (!mono_error_ok (error))
4645 target = (guint8 *)mono_resolve_patch_target_checked (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4646 if (!mono_error_ok (error))
4651 * The trampoline expects us to return a function descriptor on platforms which use
4652 * it, but resolve_patch_target returns a direct function pointer for some type of
4653 * patches, so have to translate between the two.
4654 * FIXME: Clean this up, but how ?
4656 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) {
4657 /* These should already have a function descriptor */
4658 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4659 /* Our function descriptors have a 0 environment, gcc created ones don't */
4660 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4661 g_assert (((gpointer*)target) [2] == 0);
4664 } else if (!no_ftnptr) {
4665 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4666 g_assert (((gpointer*)target) [2] != 0);
4668 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4671 mono_mempool_destroy (mp);
4673 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4674 plt_entry = mono_aot_get_plt_entry (code);
4675 g_assert (plt_entry);
4676 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4680 g_assert_not_reached ();
4688 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4689 * method in the module is loaded to avoid committing memory by writing to it.
4690 * LOCKING: Assumes the AMODULE lock is held.
4693 init_plt (MonoAotModule *amodule)
4698 if (amodule->plt_inited)
4701 if (amodule->info.plt_size <= 1) {
4702 amodule->plt_inited = TRUE;
4706 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4709 * Initialize the PLT entries in the GOT to point to the default targets.
4712 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4713 for (i = 1; i < amodule->info.plt_size; ++i)
4714 /* All the default entries point to the AOT trampoline */
4715 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4717 amodule->plt_inited = TRUE;
4721 * mono_aot_get_plt_entry:
4723 * Return the address of the PLT entry called by the code at CODE if exists.
4726 mono_aot_get_plt_entry (guint8 *code)
4728 MonoAotModule *amodule = find_aot_module (code);
4729 guint8 *target = NULL;
4735 if (is_thumb_code (amodule, code - 4))
4736 return mono_arm_get_thumb_plt_entry (code);
4739 #ifdef MONO_ARCH_AOT_SUPPORTED
4740 target = mono_arch_get_call_target (code);
4742 g_assert_not_reached ();
4746 while (target != NULL) {
4747 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4750 // Add 4 since mono_arch_get_call_target assumes we're passing
4751 // the instruction after the actual branch instruction.
4752 target = mono_arch_get_call_target (target + 4);
4757 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4765 * mono_aot_get_plt_info_offset:
4767 * Return the PLT info offset belonging to the plt entry called by CODE.
4770 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4772 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4774 g_assert (plt_entry);
4776 /* The offset is embedded inside the code after the plt entry */
4777 #ifdef MONO_ARCH_AOT_SUPPORTED
4778 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4780 g_assert_not_reached ();
4786 mono_create_ftnptr_malloc (guint8 *code)
4788 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4789 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4791 ftnptr->code = code;
4802 * mono_aot_register_jit_icall:
4804 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4805 * be called from mono_arch_init () during startup.
4808 mono_aot_register_jit_icall (const char *name, gpointer addr)
4810 /* No need for locking */
4811 if (!aot_jit_icall_hash)
4812 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4813 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4817 * load_function_full:
4819 * Load the function named NAME from the aot image.
4822 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4826 int n_patches, pindex;
4829 guint32 info_offset;
4833 symbol = g_strdup_printf ("%s", name);
4834 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4837 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4839 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4843 symbol = g_strdup_printf ("%s_p", name);
4844 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4847 /* Nothing to patch */
4850 info_offset = *(guint32*)p;
4852 MonoTrampInfo *tinfo;
4853 guint32 code_size, uw_info_len, uw_offset;
4855 /* Construct a MonoTrampInfo from the data in the AOT image */
4857 p += sizeof (guint32);
4858 code_size = *(guint32*)p;
4859 p += sizeof (guint32);
4860 uw_offset = *(guint32*)p;
4861 uw_info = amodule->unwind_info + uw_offset;
4862 uw_info_len = decode_value (uw_info, &uw_info);
4864 tinfo = g_new0 (MonoTrampInfo, 1);
4865 tinfo->code = (guint8 *)code;
4866 tinfo->code_size = code_size;
4867 tinfo->uw_info = uw_info;
4868 tinfo->uw_info_len = uw_info_len;
4873 p = amodule->blob + info_offset;
4875 /* Similar to mono_aot_load_method () */
4877 n_patches = decode_value (p, &p);
4880 MonoJumpInfo *patches;
4883 mp = mono_mempool_new ();
4885 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4888 for (pindex = 0; pindex < n_patches; ++pindex) {
4889 MonoJumpInfo *ji = &patches [pindex];
4892 if (amodule->got [got_slots [pindex]])
4896 * When this code is executed, the runtime may not be initalized yet, so
4897 * resolve the patch info by hand.
4899 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4900 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4901 target = mono_get_lmf_addr;
4902 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
4903 target = mono_thread_force_interruption_checkpoint_noraise;
4904 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
4905 target = mono_interruption_checkpoint_from_trampoline;
4906 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
4907 target = mono_exception_from_token;
4908 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
4909 target = mono_get_throw_exception ();
4910 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
4911 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
4912 target = (gpointer)mono_get_trampoline_func (tramp_type2);
4913 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
4914 /* atoll is needed because the the offset is unsigned */
4918 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
4919 g_assert (res == 1);
4920 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4921 target = mono_create_ftnptr_malloc ((guint8 *)target);
4922 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
4923 target = mono_thread_get_and_clear_pending_exception;
4924 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
4925 target = debugger_agent_single_step_from_context;
4926 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
4927 target = debugger_agent_breakpoint_from_context;
4928 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
4929 target = mono_get_throw_exception_addr ();
4930 } else if (strstr (ji->data.name, "generic_trampoline_")) {
4931 target = mono_aot_get_trampoline (ji->data.name);
4932 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
4933 /* Registered by mono_arch_init () */
4934 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
4936 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
4937 g_assert_not_reached ();
4941 /* Hopefully the code doesn't have patches which need method or
4944 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE);
4948 amodule->got [got_slots [pindex]] = target;
4953 mono_mempool_destroy (mp);
4960 load_function (MonoAotModule *amodule, const char *name)
4962 return load_function_full (amodule, name, NULL);
4965 static MonoAotModule*
4966 get_mscorlib_aot_module (void)
4969 MonoAotModule *amodule;
4971 image = mono_defaults.corlib;
4973 amodule = (MonoAotModule *)image->aot_module;
4975 amodule = mscorlib_aot_module;
4981 no_trampolines (void)
4983 g_assert_not_reached ();
4987 * Return the trampoline identified by NAME from the mscorlib AOT file.
4988 * On ppc64, this returns a function descriptor.
4991 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
4993 MonoAotModule *amodule = get_mscorlib_aot_module ();
4995 if (mono_llvm_only) {
4997 return no_trampolines;
5000 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5004 mono_aot_get_trampoline (const char *name)
5006 MonoTrampInfo *out_tinfo;
5009 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5010 mono_tramp_info_register (out_tinfo, NULL);
5016 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5018 gpointer symbol_addr;
5019 guint32 uw_offset, uw_info_len;
5022 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5027 uw_offset = *(guint32*)symbol_addr;
5028 uw_info = amodule->unwind_info + uw_offset;
5029 uw_info_len = decode_value (uw_info, &uw_info);
5031 info->uw_info = uw_info;
5032 info->uw_info_len = uw_info_len;
5034 /* If successful return the address of the following data */
5035 return (guint32*)symbol_addr + 1;
5039 #include <mach/mach.h>
5041 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5044 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5046 char symbol_name [128];
5048 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5049 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5050 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5051 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5052 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5053 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5054 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5055 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5057 g_assert_not_reached ();
5059 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5062 static unsigned char*
5063 get_new_trampoline_from_page (int tramp_type)
5065 MonoAotModule *amodule;
5067 TrampolinePage *page;
5070 vm_address_t addr, taddr;
5072 vm_prot_t prot, max_prot;
5073 int psize, specific_trampoline_size;
5074 unsigned char *code;
5076 specific_trampoline_size = 2 * sizeof (gpointer);
5078 mono_aot_page_lock ();
5079 page = trampoline_pages [tramp_type];
5080 if (page && page->trampolines < page->trampolines_end) {
5081 code = page->trampolines;
5082 page->trampolines += specific_trampoline_size;
5083 mono_aot_page_unlock ();
5086 mono_aot_page_unlock ();
5087 /* the trampoline template page is in the mscorlib module */
5088 image = mono_defaults.corlib;
5091 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5093 amodule = image->aot_module;
5096 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5097 tpage = load_function (amodule, "specific_trampolines_page");
5098 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5099 tpage = load_function (amodule, "rgctx_trampolines_page");
5100 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5101 tpage = load_function (amodule, "imt_trampolines_page");
5102 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5103 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5105 g_error ("Incorrect tramp type for trampolines page");
5107 /*g_warning ("loaded trampolines page at %x", tpage);*/
5109 /* avoid the unlikely case of looping forever */
5112 while (page == NULL && count-- > 0) {
5113 MonoTrampInfo *gen_info, *sp_info;
5116 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5117 * while the second will contain the trampolines.
5119 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5120 if (ret != KERN_SUCCESS) {
5121 g_error ("Cannot allocate memory for trampolines: %d", ret);
5124 /*g_warning ("allocated trampoline double page at %x", addr);*/
5125 /* replace the second page with a remapped trampoline page */
5126 taddr = addr + psize;
5127 vm_deallocate (mach_task_self (), taddr, psize);
5128 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5129 if (ret != KERN_SUCCESS) {
5130 /* someone else got the page, try again */
5131 vm_deallocate (mach_task_self (), addr, psize);
5134 /*g_warning ("remapped trampoline page at %x", taddr);*/
5136 mono_aot_page_lock ();
5137 page = trampoline_pages [tramp_type];
5138 /* some other thread already allocated, so use that to avoid wasting memory */
5139 if (page && page->trampolines < page->trampolines_end) {
5140 code = page->trampolines;
5141 page->trampolines += specific_trampoline_size;
5142 mono_aot_page_unlock ();
5143 vm_deallocate (mach_task_self (), addr, psize);
5144 vm_deallocate (mach_task_self (), taddr, psize);
5147 page = (TrampolinePage*)addr;
5148 page->next = trampoline_pages [tramp_type];
5149 trampoline_pages [tramp_type] = page;
5150 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5151 page->trampolines_end = (void*)(taddr + psize - 64);
5152 code = page->trampolines;
5153 page->trampolines += specific_trampoline_size;
5154 mono_aot_page_unlock ();
5156 /* Register the generic part at the beggining of the trampoline page */
5157 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5158 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5159 mono_tramp_info_register (gen_info, NULL);
5162 * Registering each specific trampoline produces a lot of
5163 * MonoJitInfo structures. Jump trampolines are also registered
5166 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5167 /* Register the rest of the page as a single trampoline */
5168 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5169 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5170 mono_tramp_info_register (sp_info, NULL);
5174 g_error ("Cannot allocate more trampoline pages: %d", ret);
5179 static unsigned char*
5180 get_new_trampoline_from_page (int tramp_type)
5182 g_error ("Page trampolines not supported.");
5189 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5194 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5196 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5199 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5205 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5210 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5212 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5215 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5221 get_new_imt_trampoline_from_page (gpointer arg)
5226 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5228 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5230 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5236 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5241 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5243 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5246 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5250 /* Return a given kind of trampoline */
5251 /* FIXME set unwind info for these trampolines */
5253 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5256 MonoAotModule *amodule = get_mscorlib_aot_module ();
5257 int index, tramp_size;
5259 /* Currently, we keep all trampolines in the mscorlib AOT image */
5260 image = mono_defaults.corlib;
5262 *out_amodule = amodule;
5267 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5269 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5271 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5272 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5273 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5275 index = amodule->trampoline_index [tramp_type] ++;
5279 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5281 tramp_size = amodule->info.trampoline_size [tramp_type];
5284 *out_tramp_size = tramp_size;
5286 return amodule->trampolines [tramp_type] + (index * tramp_size);
5290 no_specific_trampoline (void)
5292 g_assert_not_reached ();
5296 * Return a specific trampoline from the AOT file.
5299 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5301 MonoAotModule *amodule;
5302 guint32 got_offset, tramp_size;
5303 guint8 *code, *tramp;
5304 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5305 static gboolean inited;
5306 static guint32 num_trampolines;
5308 if (mono_llvm_only) {
5310 return no_specific_trampoline;
5317 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5326 if (!generic_trampolines [tramp_type]) {
5329 symbol = mono_get_generic_trampoline_name (tramp_type);
5330 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5334 tramp = (guint8 *)generic_trampolines [tramp_type];
5337 if (USE_PAGE_TRAMPOLINES) {
5338 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5341 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5343 amodule->got [got_offset] = tramp;
5344 amodule->got [got_offset + 1] = arg1;
5348 *code_len = tramp_size;
5354 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5356 MonoAotModule *amodule;
5360 if (USE_PAGE_TRAMPOLINES) {
5361 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5363 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5365 amodule->got [got_offset] = ctx;
5366 amodule->got [got_offset + 1] = addr;
5369 /* The caller expects an ftnptr */
5370 return mono_create_ftnptr (mono_domain_get (), code);
5374 mono_aot_get_unbox_trampoline (MonoMethod *method)
5376 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5377 MonoAotModule *amodule;
5379 guint32 *ut, *ut_end, *entry;
5380 int low, high, entry_index = 0;
5381 gpointer symbol_addr;
5382 MonoTrampInfo *tinfo;
5384 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5385 method_index = find_aot_method (method, &amodule);
5386 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5387 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5388 method_index = find_aot_method (shared, &amodule);
5390 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5391 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5392 method_index = find_aot_method (shared, &amodule);
5394 g_assert (method_index != 0xffffff);
5396 amodule = (MonoAotModule *)method->klass->image->aot_module;
5400 if (amodule->info.llvm_get_unbox_tramp) {
5401 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5402 code = get_tramp (method_index);
5408 ut = amodule->unbox_trampolines;
5409 ut_end = amodule->unbox_trampolines_end;
5411 /* Do a binary search in the sorted table */
5414 high = (ut_end - ut);
5415 while (low < high) {
5416 entry_index = (low + high) / 2;
5417 entry = &ut [entry_index];
5418 if (entry [0] < method_index) {
5419 low = entry_index + 1;
5420 } else if (entry [0] > method_index) {
5427 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5430 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5432 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5434 mono_tramp_info_free (tinfo);
5438 tinfo->code_size = *(guint32*)symbol_addr;
5439 mono_tramp_info_register (tinfo, NULL);
5441 /* The caller expects an ftnptr */
5442 return mono_create_ftnptr (mono_domain_get (), code);
5446 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5450 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5451 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5452 static int count = 0;
5455 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5456 static gpointer addr;
5460 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5463 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5464 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5465 info [0] = GUINT_TO_POINTER (slot);
5466 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5467 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5468 return mono_create_ftnptr (mono_domain_get (), code);
5471 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5472 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5474 /* The caller expects an ftnptr */
5475 return mono_create_ftnptr (mono_domain_get (), code);
5481 g_assert_not_reached ();
5485 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5490 int i, index, real_count;
5491 MonoAotModule *amodule;
5494 return no_imt_thunk;
5497 for (i = 0; i < count; ++i) {
5498 MonoIMTCheckItem *item = imt_entries [i];
5500 if (item->is_equals)
5504 /* Save the entries into an array */
5505 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5507 for (i = 0; i < count; ++i) {
5508 MonoIMTCheckItem *item = imt_entries [i];
5510 if (!item->is_equals)
5513 g_assert (item->key);
5515 buf [(index * 2)] = item->key;
5516 if (item->has_target_code) {
5517 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5518 *p = item->value.target_code;
5519 buf [(index * 2) + 1] = p;
5521 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5525 buf [(index * 2)] = NULL;
5526 buf [(index * 2) + 1] = fail_tramp;
5528 if (USE_PAGE_TRAMPOLINES) {
5529 code = get_new_imt_trampoline_from_page (buf);
5531 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5533 amodule->got [got_offset] = buf;
5540 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5542 MonoAotModule *amodule;
5546 if (USE_PAGE_TRAMPOLINES) {
5547 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5549 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5551 amodule->got [got_offset] = arg;
5552 amodule->got [got_offset + 1] = addr;
5555 /* The caller expects an ftnptr */
5556 return mono_create_ftnptr (mono_domain_get (), code);
5560 * mono_aot_set_make_unreadable:
5562 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5563 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5566 mono_aot_set_make_unreadable (gboolean unreadable)
5570 make_unreadable = unreadable;
5572 if (make_unreadable && !inited) {
5573 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5578 MonoAotModule *module;
5583 find_map (gpointer key, gpointer value, gpointer user_data)
5585 MonoAotModule *module = (MonoAotModule*)value;
5586 FindMapUserData *data = (FindMapUserData*)user_data;
5589 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5590 data->module = module;
5593 static MonoAotModule*
5594 find_module_for_addr (void *ptr)
5596 FindMapUserData data;
5598 if (!make_unreadable)
5602 data.ptr = (guint8*)ptr;
5605 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5612 * mono_aot_is_pagefault:
5614 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5615 * within memory allocated by this module.
5618 mono_aot_is_pagefault (void *ptr)
5620 if (!make_unreadable)
5624 * Not signal safe, but SIGSEGV's are synchronous, and
5625 * this is only turned on by a MONO_DEBUG option.
5627 return find_module_for_addr (ptr) != NULL;
5631 * mono_aot_handle_pagefault:
5633 * Handle a pagefault caused by an unreadable page by making it readable again.
5636 mono_aot_handle_pagefault (void *ptr)
5638 #ifndef PLATFORM_WIN32
5639 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5643 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5644 g_assert (res == 0);
5655 mono_aot_init (void)
5660 mono_aot_cleanup (void)
5665 mono_aot_find_method_index (MonoMethod *method)
5667 g_assert_not_reached ();
5672 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5677 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5682 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5687 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5692 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5698 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5704 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5710 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5716 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5722 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5728 mono_aot_get_plt_entry (guint8 *code)
5734 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5740 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5745 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5751 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5753 g_assert_not_reached ();
5759 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5761 g_assert_not_reached ();
5766 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5768 g_assert_not_reached ();
5773 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5775 g_assert_not_reached ();
5780 mono_aot_get_trampoline (const char *name)
5782 g_assert_not_reached ();
5787 mono_aot_get_unbox_trampoline (MonoMethod *method)
5789 g_assert_not_reached ();
5794 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5796 g_assert_not_reached ();
5801 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5803 g_assert_not_reached ();
5808 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5810 g_assert_not_reached ();
5815 mono_aot_set_make_unreadable (gboolean unreadable)
5820 mono_aot_is_pagefault (void *ptr)
5826 mono_aot_handle_pagefault (void *ptr)
5831 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5833 g_assert_not_reached ();
5838 mono_aot_register_jit_icall (const char *name, gpointer addr)