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_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error);
230 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
233 amodule_lock (MonoAotModule *amodule)
235 mono_os_mutex_lock (&amodule->mutex);
239 amodule_unlock (MonoAotModule *amodule)
241 mono_os_mutex_unlock (&amodule->mutex);
247 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
248 * found, and sets @error for what happened
251 load_image (MonoAotModule *amodule, int index, MonoError *error)
253 MonoAssembly *assembly;
254 MonoImageOpenStatus status;
256 g_assert (index < amodule->image_table_len);
258 mono_error_init (error);
260 if (amodule->image_table [index])
261 return amodule->image_table [index];
262 if (amodule->out_of_date) {
263 mono_error_set_bad_image_name (error, amodule->aot_name, "Image out of date");
267 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
269 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);
270 mono_error_set_bad_image_name (error, amodule->aot_name, "module is unusable because dependency %s is not found (error %d).\n", amodule->image_names [index].name, status);
271 amodule->out_of_date = TRUE;
275 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
276 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);
277 mono_error_set_bad_image_name (error, amodule->aot_name, "module is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').\n", 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, MonoError *error);
365 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
367 static MonoGenericInst*
368 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
371 MonoType **type_argv;
372 MonoGenericInst *inst;
375 mono_error_init (error);
376 type_argc = decode_value (p, &p);
377 type_argv = g_new0 (MonoType*, type_argc);
379 for (i = 0; i < type_argc; ++i) {
380 MonoClass *pclass = decode_klass_ref (module, p, &p, error);
385 type_argv [i] = &pclass->byval_arg;
388 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
397 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
405 argc = decode_value (p, &p);
408 ctx->class_inst = decode_generic_inst (module, p, &p, &error);
409 mono_error_cleanup (&error); /* FIXME don't swallow the error */
410 if (!ctx->class_inst)
414 argc = decode_value (p, &p);
417 ctx->method_inst = decode_generic_inst (module, p, &p, &error);
418 mono_error_cleanup (&error); /* FIXME don't swallow the error */
419 if (!ctx->method_inst)
428 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
431 MonoClass *klass = NULL, *eklass;
432 guint32 token, rank, idx;
436 mono_error_init (error);
437 reftype = decode_value (p, &p);
440 mono_error_set_bad_image_name (error, module->aot_name, "Decoding a null class ref");
445 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
446 idx = decode_value (p, &p);
447 image = load_image (module, 0, error);
450 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
452 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
453 idx = decode_value (p, &p);
454 image = load_image (module, decode_value (p, &p), error);
457 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
459 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
460 token = decode_value (p, &p);
461 image = module->assembly->image;
463 mono_error_set_bad_image_name (error, module->aot_name, "No image associated with the aot module");
466 klass = mono_class_get_checked (image, token, error);
468 case MONO_AOT_TYPEREF_GINST: {
470 MonoGenericContext ctx;
473 gclass = decode_klass_ref (module, p, &p, error);
476 g_assert (gclass->generic_container);
478 memset (&ctx, 0, sizeof (ctx));
479 ctx.class_inst = decode_generic_inst (module, p, &p, error);
482 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
485 klass = mono_class_from_mono_type (type);
486 mono_metadata_free_type (type);
489 case MONO_AOT_TYPEREF_VAR: {
491 MonoGenericContainer *container = NULL;
492 gboolean has_constraint = decode_value (p, &p);
494 if (has_constraint) {
495 MonoClass *par_klass;
496 MonoType *gshared_constraint;
498 gshared_constraint = decode_type (module, p, &p, error);
499 if (!gshared_constraint)
502 par_klass = decode_klass_ref (module, p, &p, error);
506 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
507 klass = mono_class_from_mono_type (t);
509 int type = decode_value (p, &p);
510 int num = decode_value (p, &p);
511 gboolean is_not_anonymous = decode_value (p, &p);
513 if (is_not_anonymous) {
514 gboolean is_method = decode_value (p, &p);
517 MonoMethod *method_def;
518 g_assert (type == MONO_TYPE_MVAR);
519 method_def = decode_resolve_method_ref (module, p, &p);
521 mono_error_set_bad_image_name (error, module->aot_name, "Could not decode methodref when computing owned method typeref var");
525 container = mono_method_get_generic_container (method_def);
527 MonoClass *class_def;
528 g_assert (type == MONO_TYPE_VAR);
529 class_def = decode_klass_ref (module, p, &p, error);
533 container = class_def->generic_container;
536 // We didn't decode is_method, so we have to infer it from type enum.
537 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
540 t = g_new0 (MonoType, 1);
541 t->type = (MonoTypeEnum)type;
542 if (is_not_anonymous) {
543 t->data.generic_param = mono_generic_container_get_param (container, num);
546 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
547 par->owner = container;
549 t->data.generic_param = par;
550 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
552 // FIXME: Maybe use types directly to avoid
553 // the overhead of creating MonoClass-es
554 klass = mono_class_from_mono_type (t);
560 case MONO_AOT_TYPEREF_ARRAY:
562 rank = decode_value (p, &p);
563 eklass = decode_klass_ref (module, p, &p, error);
566 klass = mono_array_class_get (eklass, rank);
568 case MONO_AOT_TYPEREF_PTR: {
571 t = decode_type (module, p, &p, error);
574 klass = mono_class_from_mono_type (t);
578 case MONO_AOT_TYPEREF_BLOB_INDEX: {
579 guint32 offset = decode_value (p, &p);
582 p2 = module->blob + offset;
583 klass = decode_klass_ref (module, p2, &p2, error);
587 mono_error_set_bad_image_name (error, module->aot_name, "Invalid klass reftype %d", reftype);
590 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
595 static MonoClassField*
596 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
599 MonoClass *klass = decode_klass_ref (module, buf, &buf, &error);
604 mono_error_cleanup (&error); /* FIXME don't swallow the error */
608 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
612 return mono_class_get_field (klass, token);
616 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
620 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
625 t = (MonoType *)g_malloc0 (sizeof (MonoType));
626 mono_error_init (error);
629 if (*p == MONO_TYPE_PINNED) {
632 } else if (*p == MONO_TYPE_BYREF) {
640 t->type = (MonoTypeEnum)*p;
645 case MONO_TYPE_BOOLEAN:
659 case MONO_TYPE_STRING:
660 case MONO_TYPE_OBJECT:
661 case MONO_TYPE_TYPEDBYREF:
663 case MONO_TYPE_VALUETYPE:
664 case MONO_TYPE_CLASS:
665 t->data.klass = decode_klass_ref (module, p, &p, error);
669 case MONO_TYPE_SZARRAY:
670 t->data.klass = decode_klass_ref (module, p, &p, error);
676 t->data.type = decode_type (module, p, &p, error);
680 case MONO_TYPE_GENERICINST: {
682 MonoGenericContext ctx;
686 gclass = decode_klass_ref (module, p, &p, error);
689 g_assert (gclass->generic_container);
691 memset (&ctx, 0, sizeof (ctx));
692 ctx.class_inst = decode_generic_inst (module, p, &p, error);
695 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
698 klass = mono_class_from_mono_type (type);
699 t->data.generic_class = klass->generic_class;
702 case MONO_TYPE_ARRAY: {
703 MonoArrayType *array;
706 // FIXME: memory management
707 array = g_new0 (MonoArrayType, 1);
708 array->eklass = decode_klass_ref (module, p, &p, error);
711 array->rank = decode_value (p, &p);
712 array->numsizes = decode_value (p, &p);
715 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
716 for (i = 0; i < array->numsizes; ++i)
717 array->sizes [i] = decode_value (p, &p);
719 array->numlobounds = decode_value (p, &p);
720 if (array->numlobounds)
721 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
722 for (i = 0; i < array->numlobounds; ++i)
723 array->lobounds [i] = decode_value (p, &p);
724 t->data.array = array;
728 case MONO_TYPE_MVAR: {
729 MonoClass *klass = decode_klass_ref (module, p, &p, error);
732 t->data.generic_param = klass->byval_arg.data.generic_param;
736 mono_error_set_bad_image_name (error, module->aot_name, "Invalid encoded type %d", t->type);
748 // FIXME: Error handling, memory management
750 static MonoMethodSignature*
751 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
754 MonoMethodSignature *sig;
756 int i, gen_param_count = 0, param_count, call_conv;
758 gboolean hasthis, explicit_this, has_gen_params;
762 has_gen_params = (flags & 0x10) != 0;
763 hasthis = (flags & 0x20) != 0;
764 explicit_this = (flags & 0x40) != 0;
765 call_conv = flags & 0x0F;
768 gen_param_count = decode_value (p, &p);
769 param_count = decode_value (p, &p);
770 if (target && param_count != target->param_count)
772 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
773 sig->param_count = param_count;
774 sig->sentinelpos = -1;
775 sig->hasthis = hasthis;
776 sig->explicit_this = explicit_this;
777 sig->call_convention = call_conv;
778 sig->generic_param_count = gen_param_count;
779 sig->ret = decode_type (module, p, &p, &error);
782 for (i = 0; i < param_count; ++i) {
783 if (*p == MONO_TYPE_SENTINEL) {
784 g_assert (sig->call_convention == MONO_CALL_VARARG);
785 sig->sentinelpos = i;
788 sig->params [i] = decode_type (module, p, &p, &error);
789 if (!sig->params [i])
793 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
794 sig->sentinelpos = sig->param_count;
800 mono_error_cleanup (&error); /* FIXME don't swallow the error */
805 static MonoMethodSignature*
806 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
808 return decode_signature_with_target (module, NULL, buf, endbuf);
812 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
814 MonoMethodSignature *sig;
818 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
819 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
825 /* Stores information returned by decode_method_ref () */
830 gboolean no_aot_trampoline;
834 * decode_method_ref_with_target:
836 * Decode a method reference, storing the image/token into a MethodRef structure.
837 * This avoids loading metadata for the method if the caller does not need it. If the method has
838 * no token, then it is loaded from metadata and ref->method is set to the method instance.
839 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
840 * couldn't resolve to TARGET, and return FALSE.
841 * There are some kinds of method references which only support a non-null TARGET.
842 * This means that its not possible to decode this into a method, only to check
843 * that the method reference matches a given method. This is normally not a problem
844 * as these wrappers only occur in the extra_methods table, where we already have
845 * a method we want to lookup.
848 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
851 guint32 image_index, value;
852 MonoImage *image = NULL;
855 memset (ref, 0, sizeof (MethodRef));
857 value = decode_value (p, &p);
858 image_index = value >> 24;
860 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
861 ref->no_aot_trampoline = TRUE;
862 value = decode_value (p, &p);
863 image_index = value >> 24;
866 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
867 if (target && target->wrapper_type)
871 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
873 guint32 wrapper_type;
875 wrapper_type = decode_value (p, &p);
877 if (target && target->wrapper_type != wrapper_type)
881 image = mono_defaults.corlib;
883 switch (wrapper_type) {
884 #ifndef DISABLE_REMOTING
885 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
886 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
890 mono_class_init (m->klass);
894 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
897 case MONO_WRAPPER_PROXY_ISINST: {
898 MonoClass *klass = decode_klass_ref (module, p, &p, &error);
899 mono_error_cleanup (&error); /* FIXME don't swallow the error */
902 ref->method = mono_marshal_get_proxy_cancast (klass);
905 case MONO_WRAPPER_LDFLD:
906 case MONO_WRAPPER_LDFLDA:
907 case MONO_WRAPPER_STFLD:
908 case MONO_WRAPPER_ISINST: {
909 MonoClass *klass = decode_klass_ref (module, p, &p, &error);
910 mono_error_cleanup (&error); /* FIXME don't swallow the error */
913 if (wrapper_type == MONO_WRAPPER_LDFLD)
914 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
915 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
916 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
917 else if (wrapper_type == MONO_WRAPPER_STFLD)
918 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
919 else if (wrapper_type == MONO_WRAPPER_ISINST)
920 ref->method = mono_marshal_get_isinst (klass);
922 g_assert_not_reached ();
925 case MONO_WRAPPER_LDFLD_REMOTE:
926 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
928 case MONO_WRAPPER_STFLD_REMOTE:
929 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
932 case MONO_WRAPPER_ALLOC: {
933 int atype = decode_value (p, &p);
935 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
937 g_error ("Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
940 case MONO_WRAPPER_WRITE_BARRIER: {
941 ref->method = mono_gc_get_write_barrier ();
944 case MONO_WRAPPER_STELEMREF: {
945 int subtype = decode_value (p, &p);
947 if (subtype == WRAPPER_SUBTYPE_NONE) {
948 ref->method = mono_marshal_get_stelemref ();
949 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
952 kind = decode_value (p, &p);
954 /* Can't decode this */
957 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
958 info = mono_marshal_get_wrapper_info (target);
961 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
962 ref->method = target;
969 g_assert_not_reached ();
973 case MONO_WRAPPER_SYNCHRONIZED: {
974 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
978 ref->method = mono_marshal_get_synchronized_wrapper (m);
981 case MONO_WRAPPER_UNKNOWN: {
982 int subtype = decode_value (p, &p);
984 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
985 MonoClass *klass = decode_klass_ref (module, p, &p, &error);
986 mono_error_cleanup (&error); /* FIXME don't swallow the error */
993 if (klass != target->klass)
996 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
997 if (strcmp (target->name, "PtrToStructure"))
999 ref->method = mono_marshal_get_ptr_to_struct (klass);
1001 if (strcmp (target->name, "StructureToPtr"))
1003 ref->method = mono_marshal_get_struct_to_ptr (klass);
1005 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
1006 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1010 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
1011 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
1012 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1016 ref->method = mono_marshal_get_array_accessor_wrapper (m);
1017 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
1018 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
1019 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
1020 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
1021 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
1022 MonoMethodSignature *sig = decode_signature (module, p, &p);
1025 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
1026 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
1027 MonoMethodSignature *sig = decode_signature (module, p, &p);
1030 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1032 g_assert_not_reached ();
1036 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1037 int subtype = decode_value (p, &p);
1039 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1040 int rank = decode_value (p, &p);
1041 int elem_size = decode_value (p, &p);
1043 ref->method = mono_marshal_get_array_address (rank, elem_size);
1044 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1047 m = decode_resolve_method_ref (module, p, &p);
1053 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1055 info = mono_marshal_get_wrapper_info (target);
1056 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1057 ref->method = target;
1063 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1065 int subtype = decode_value (p, &p);
1068 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1073 if (strcmp (target->name, name) != 0)
1075 ref->method = target;
1077 m = decode_resolve_method_ref (module, p, &p);
1082 /* This should only happen when looking for an extra method */
1085 if (mono_marshal_method_from_wrapper (target) == m)
1086 ref->method = target;
1092 case MONO_WRAPPER_CASTCLASS: {
1093 int subtype = decode_value (p, &p);
1095 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1096 ref->method = mono_marshal_get_castclass_with_cache ();
1097 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1098 ref->method = mono_marshal_get_isinst_with_cache ();
1100 g_assert_not_reached ();
1103 case MONO_WRAPPER_RUNTIME_INVOKE: {
1104 int subtype = decode_value (p, &p);
1109 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1110 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1112 ref->method = target;
1113 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1114 /* Direct wrapper */
1115 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1119 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1120 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1121 /* Virtual direct wrapper */
1122 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1126 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1128 MonoMethodSignature *sig;
1130 sig = decode_signature_with_target (module, NULL, p, &p);
1131 info = mono_marshal_get_wrapper_info (target);
1134 if (info->subtype != subtype)
1136 g_assert (info->d.runtime_invoke.sig);
1137 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1138 ref->method = target;
1144 case MONO_WRAPPER_DELEGATE_INVOKE:
1145 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1146 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1147 gboolean is_inflated = decode_value (p, &p);
1148 WrapperSubtype subtype;
1152 MonoMethod *invoke, *wrapper;
1154 klass = decode_klass_ref (module, p, &p, &error);
1155 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1159 switch (wrapper_type) {
1160 case MONO_WRAPPER_DELEGATE_INVOKE:
1161 invoke = mono_get_delegate_invoke (klass);
1162 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1164 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1165 invoke = mono_get_delegate_begin_invoke (klass);
1166 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1168 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1169 invoke = mono_get_delegate_end_invoke (klass);
1170 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1173 g_assert_not_reached ();
1178 * Due to the way mini_get_shared_method () works, we could end up with
1179 * multiple copies of the same wrapper.
1181 if (wrapper->klass != target->klass)
1183 ref->method = target;
1185 ref->method = wrapper;
1189 * These wrappers are associated with a signature, not with a method.
1190 * Since we can't decode them into methods, they need a target method.
1195 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1196 subtype = (WrapperSubtype)decode_value (p, &p);
1197 info = mono_marshal_get_wrapper_info (target);
1199 if (info->subtype != subtype)
1202 if (subtype != WRAPPER_SUBTYPE_NONE)
1206 if (sig_matches_target (module, target, p, &p))
1207 ref->method = target;
1213 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1217 m = decode_resolve_method_ref (module, p, &p);
1220 klass = decode_klass_ref (module, p, &p, &error);
1221 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1224 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1228 g_assert_not_reached ();
1230 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1231 image_index = decode_value (p, &p);
1232 ref->token = decode_value (p, &p);
1234 image = load_image (module, image_index, &error);
1235 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1238 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1241 MonoGenericContext ctx;
1244 * These methods do not have a token which resolves them, so we
1245 * resolve them immediately.
1247 klass = decode_klass_ref (module, p, &p, &error);
1248 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1252 if (target && target->klass != klass)
1255 image_index = decode_value (p, &p);
1256 ref->token = decode_value (p, &p);
1258 image = load_image (module, image_index, &error);
1259 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1263 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, &error);
1265 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1269 memset (&ctx, 0, sizeof (ctx));
1271 if (FALSE && klass->generic_class) {
1272 ctx.class_inst = klass->generic_class->context.class_inst;
1273 ctx.method_inst = NULL;
1275 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1277 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1280 memset (&ctx, 0, sizeof (ctx));
1282 if (!decode_generic_context (module, &ctx, p, &p))
1285 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1287 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
1289 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1293 klass = decode_klass_ref (module, p, &p, &error);
1294 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1297 method_type = decode_value (p, &p);
1298 switch (method_type) {
1300 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1303 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1306 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1309 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1312 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1315 g_assert_not_reached ();
1318 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1319 image_index = decode_value (p, &p);
1320 value = decode_value (p, &p);
1323 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1325 image = load_image (module, image_index, &error);
1326 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1339 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1341 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1345 * decode_resolve_method_ref_with_target:
1347 * Similar to decode_method_ref, but resolve and return the method itself.
1350 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1357 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1364 result = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
1366 mono_error_cleanup (&error); /* FIXME don't swallow the error */
1371 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1373 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1376 #ifdef ENABLE_AOT_CACHE
1382 * - Add options for controlling the cache size
1383 * - Handle full cache by deleting old assemblies lru style
1384 * - Maybe add a threshold after an assembly is AOT compiled
1385 * - Add options for enabling this for specific main assemblies
1388 /* The cache directory */
1389 static char *cache_dir;
1391 /* The number of assemblies AOTed in this run */
1392 static int cache_count;
1394 /* Whenever to AOT in-process */
1395 static gboolean in_process;
1398 collect_assemblies (gpointer data, gpointer user_data)
1400 MonoAssembly *ass = data;
1401 GSList **l = user_data;
1403 *l = g_slist_prepend (*l, ass);
1406 #define SHA1_DIGEST_LENGTH 20
1409 * get_aot_config_hash:
1411 * Return a hash for all the version information an AOT module depends on.
1413 static G_GNUC_UNUSED char*
1414 get_aot_config_hash (MonoAssembly *assembly)
1417 GSList *l, *assembly_list = NULL;
1420 guint8 digest [SHA1_DIGEST_LENGTH];
1423 build_info = mono_get_runtime_build_info ();
1425 s = g_string_new (build_info);
1427 mono_assembly_foreach (collect_assemblies, &assembly_list);
1430 * The assembly list includes the current assembly as well, no need
1433 for (l = assembly_list; l; l = l->next) {
1434 MonoAssembly *ass = l->data;
1436 g_string_append (s, "_");
1437 g_string_append (s, ass->aname.name);
1438 g_string_append (s, "_");
1439 g_string_append (s, ass->image->guid);
1442 for (i = 0; i < s->len; ++i) {
1443 if (!isalnum (s->str [i]) && s->str [i] != '-')
1447 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1449 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1450 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1451 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1453 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1455 g_string_free (s, TRUE);
1461 aot_cache_init (void)
1465 enable_aot_cache = TRUE;
1470 * aot_cache_load_module:
1472 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1475 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1477 MonoAotCacheConfig *config;
1479 char *fname, *tmp2, *aot_options, *failure_fname;
1491 if (image_is_dynamic (assembly->image))
1494 /* Check in the list of assemblies enabled for aot caching */
1495 config = mono_get_aot_cache_config ();
1499 MonoDomain *domain = mono_domain_get ();
1500 MonoAssembly *entry_assembly = domain->entry_assembly;
1502 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1503 for (l = config->apps; l; l = l->next) {
1506 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1514 for (l = config->assemblies; l; l = l->next) {
1517 if (!strcmp (assembly->aname.name, n))
1527 home = g_get_home_dir ();
1530 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1531 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1532 g_mkdir_with_parents (cache_dir, 0777);
1536 * The same assembly can be used in multiple configurations, i.e. multiple
1537 * versions of the runtime, with multiple versions of dependent assemblies etc.
1538 * To handle this, we compute a version string containing all this information, hash it,
1539 * and use the hash as a filename suffix.
1541 hash = get_aot_config_hash (assembly);
1543 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1544 fname = g_build_filename (cache_dir, tmp2, NULL);
1548 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1549 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1552 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1556 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1558 * Can't AOT this during startup, so we AOT it when called later from
1559 * mono_aot_get_method ().
1563 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1565 /* Only AOT one assembly per run to avoid slowing down execution too much */
1566 if (cache_count > 0)
1570 /* Check for previous failure */
1571 failure_fname = g_strdup_printf ("%s.failure", fname);
1572 failure_file = fopen (failure_fname, "r");
1574 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1575 g_free (failure_fname);
1578 g_free (failure_fname);
1579 fclose (failure_file);
1582 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1585 * We need to invoke the AOT compiler here. There are multiple approaches:
1586 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1587 * its hard to make the new process load the same set of assemblies.
1588 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1590 * - fork a new process and do the work there.
1593 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1594 /* Maybe due this in another thread ? */
1595 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1597 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1598 failure_fname = g_strdup_printf ("%s.failure", fname);
1599 failure_file = fopen (failure_fname, "a+");
1600 fclose (failure_file);
1601 g_free (failure_fname);
1603 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1607 * - Avoid waiting for the aot process to finish ?
1608 * (less overhead, but multiple processes could aot the same assembly at the same time)
1617 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1618 logfile = fopen (logfile_name, "a+");
1619 g_free (logfile_name);
1621 dup2 (fileno (logfile), 1);
1622 dup2 (fileno (logfile), 2);
1624 aot_options = g_strdup_printf ("outfile=%s", fname);
1625 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1633 waitpid (pid, &exit_status, 0);
1634 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1635 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1637 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1641 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1649 aot_cache_init (void)
1654 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1662 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1666 guint16 *table, *entry;
1669 char *symbol = (char*)name;
1672 symbol = g_strdup_printf ("_%s", name);
1675 /* The first entry points to the hash */
1676 table = (guint16 *)globals [0];
1679 table_size = table [0];
1682 hash = mono_metadata_str_hash (symbol) % table_size;
1684 entry = &table [hash * 2];
1686 /* Search the hash for the index into the globals table */
1688 while (entry [0] != 0) {
1689 guint32 index = entry [0] - 1;
1690 guint32 next = entry [1];
1692 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1694 if (!strcmp (globals [index * 2], symbol)) {
1695 global_index = index;
1700 entry = &table [next * 2];
1706 if (global_index != -1)
1707 *value = globals [global_index * 2 + 1];
1714 char *err = mono_dl_symbol (module, name, value);
1722 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1724 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1726 find_symbol (amodule->sofile, amodule->globals, name, value);
1730 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1732 aot_data_load_func = load_func;
1733 aot_data_free_func = free_func;
1734 aot_data_func_user_data = user_data;
1737 /* Load the separate aot data file for ASSEMBLY */
1739 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1745 if (aot_data_load_func) {
1746 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1752 * Use <assembly name>.aotdata as the default implementation if no callback is given
1754 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1755 map = mono_file_map_open (filename);
1757 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1764 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1768 gboolean usable = TRUE;
1769 gboolean full_aot, safepoints;
1770 guint32 excluded_cpu_optimizations;
1772 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1773 msg = g_strdup_printf ("doesn't match assembly");
1777 build_info = mono_get_runtime_build_info ();
1778 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1779 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1782 g_free (build_info);
1784 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1786 if (mono_aot_only && !full_aot) {
1787 msg = g_strdup_printf ("not compiled with --aot=full");
1790 if (!mono_aot_only && full_aot) {
1791 msg = g_strdup_printf ("compiled with --aot=full");
1794 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1795 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1799 /* mono_arch_find_imt_method () requires this */
1800 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1801 msg = g_strdup_printf ("compiled against LLVM");
1804 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1805 msg = g_strdup_printf ("not compiled against LLVM");
1809 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1810 msg = g_strdup_printf ("not compiled for debugging");
1814 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1815 if (info->opts & excluded_cpu_optimizations) {
1816 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1820 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1821 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1825 if (info->gc_name_index != -1) {
1826 char *gc_name = (char*)&blob [info->gc_name_index];
1827 const char *current_gc_name = mono_gc_get_gc_name ();
1829 if (strcmp (current_gc_name, gc_name) != 0) {
1830 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1835 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1837 if (!safepoints && mono_threads_is_coop_enabled ()) {
1838 msg = g_strdup_printf ("not compiled with safepoints");
1847 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1850 get_call_table_entry (void *table, int index)
1852 #if defined(TARGET_ARM)
1857 ins_addr = (guint32*)table + index;
1859 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1861 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1862 return (char*)ins_addr + (offset * 2) + 8 + 1;
1864 offset = (((int)ins & 0xffffff) << 8) >> 8;
1865 return (char*)ins_addr + (offset * 4) + 8;
1867 #elif defined(TARGET_ARM64)
1868 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1869 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1870 /* The callee expects an ip which points after the call */
1871 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1873 g_assert_not_reached ();
1881 * Initialize the shared got entries for AMODULE.
1884 init_amodule_got (MonoAotModule *amodule)
1888 MonoJumpInfo *patches;
1889 guint32 got_offsets [128];
1893 /* These can't be initialized in load_aot_module () */
1894 if (amodule->shared_got [0] || amodule->got_initializing)
1897 amodule->got_initializing = TRUE;
1899 mp = mono_mempool_new ();
1900 npatches = amodule->info.nshared_got_entries;
1901 for (i = 0; i < npatches; ++i)
1902 got_offsets [i] = i;
1903 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1905 for (i = 0; i < npatches; ++i) {
1908 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1909 amodule->shared_got [i] = NULL;
1910 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1911 amodule->shared_got [i] = NULL;
1912 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1913 amodule->shared_got [i] = NULL;
1914 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1915 amodule->shared_got [i] = amodule->assembly->image;
1916 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1917 if (mono_defaults.corlib) {
1918 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1920 if (mscorlib_amodule)
1921 amodule->shared_got [i] = mscorlib_amodule->got;
1923 amodule->shared_got [i] = amodule->got;
1925 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1926 amodule->shared_got [i] = amodule;
1928 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1929 mono_error_assert_ok (&error);
1934 for (i = 0; i < npatches; ++i)
1935 amodule->got [i] = amodule->shared_got [i];
1937 if (amodule->llvm_got) {
1938 for (i = 0; i < npatches; ++i)
1939 amodule->llvm_got [i] = amodule->shared_got [i];
1942 mono_mempool_destroy (mp);
1946 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1949 MonoAotModule *amodule;
1951 gboolean usable = TRUE;
1952 char *version_symbol = NULL;
1954 gpointer *globals = NULL;
1955 MonoAotFileInfo *info = NULL;
1957 gboolean do_load_image = TRUE;
1958 int align_double, align_int64;
1959 guint8 *aot_data = NULL;
1961 if (mono_compile_aot)
1964 if (assembly->image->aot_module)
1966 * Already loaded. This can happen because the assembly loading code might invoke
1967 * the assembly load hooks multiple times for the same assembly.
1971 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1975 if (static_aot_modules)
1976 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1984 /* Statically linked AOT module */
1985 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1986 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1987 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1988 globals = (void **)info->globals;
1992 if (enable_aot_cache)
1993 sofile = aot_cache_load_module (assembly, &aot_name);
1996 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1998 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2001 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
2004 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);
2005 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2007 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
2014 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
2015 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2022 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2023 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2026 if (version_symbol) {
2027 /* Old file format */
2028 version = atoi (version_symbol);
2031 version = info->version;
2034 if (version != MONO_AOT_FILE_VERSION) {
2035 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2041 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2042 aot_data = open_aot_data (assembly, info, &handle);
2044 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2046 blob = (guint8 *)info->blob;
2049 usable = check_usable (assembly, info, blob, &msg);
2053 if (mono_aot_only) {
2054 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
2056 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
2061 mono_dl_close (sofile);
2062 assembly->image->aot_module = NULL;
2067 align_double = MONO_ABI_ALIGNOF (double);
2068 align_int64 = MONO_ABI_ALIGNOF (gint64);
2069 g_assert (info->double_align == align_double);
2070 g_assert (info->long_align == align_int64);
2071 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2073 amodule = g_new0 (MonoAotModule, 1);
2074 amodule->aot_name = aot_name;
2075 amodule->assembly = assembly;
2077 memcpy (&amodule->info, info, sizeof (*info));
2079 amodule->got = (void **)amodule->info.jit_got;
2080 amodule->llvm_got = (void **)amodule->info.llvm_got;
2081 amodule->globals = globals;
2082 amodule->sofile = sofile;
2083 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2084 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2085 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2087 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2088 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2089 amodule->tables [i] = aot_data + info->table_offsets [i];
2092 mono_os_mutex_init_recursive (&amodule->mutex);
2094 /* Read image table */
2096 guint32 table_len, i;
2099 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2100 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2102 table = (char *)info->image_table;
2105 table_len = *(guint32*)table;
2106 table += sizeof (guint32);
2107 amodule->image_table = g_new0 (MonoImage*, table_len);
2108 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2109 amodule->image_guids = g_new0 (char*, table_len);
2110 amodule->image_table_len = table_len;
2111 for (i = 0; i < table_len; ++i) {
2112 MonoAssemblyName *aname = &(amodule->image_names [i]);
2114 aname->name = g_strdup (table);
2115 table += strlen (table) + 1;
2116 amodule->image_guids [i] = g_strdup (table);
2117 table += strlen (table) + 1;
2119 aname->culture = g_strdup (table);
2120 table += strlen (table) + 1;
2121 memcpy (aname->public_key_token, table, strlen (table) + 1);
2122 table += strlen (table) + 1;
2124 table = (char *)ALIGN_PTR_TO (table, 8);
2125 aname->flags = *(guint32*)table;
2127 aname->major = *(guint32*)table;
2129 aname->minor = *(guint32*)table;
2131 aname->build = *(guint32*)table;
2133 aname->revision = *(guint32*)table;
2138 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2139 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2140 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2141 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2142 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2143 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2144 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2145 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2146 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2147 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2148 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2149 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2151 amodule->blob = info->blob;
2152 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2153 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2154 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2155 amodule->class_name_table = (guint16 *)info->class_name_table;
2156 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2157 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2158 amodule->got_info_offsets = info->got_info_offsets;
2159 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2161 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2162 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2163 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2164 amodule->unwind_info = (guint8 *)info->unwind_info;
2165 amodule->mem_begin = amodule->jit_code_start;
2166 amodule->mem_end = (guint8 *)info->mem_end;
2167 amodule->plt = (guint8 *)info->plt;
2168 amodule->plt_end = (guint8 *)info->plt_end;
2169 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2170 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2171 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2172 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2173 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2175 if (!strcmp (assembly->aname.name, "mscorlib"))
2176 mscorlib_aot_module = amodule;
2178 /* Compute method addresses */
2179 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2180 for (i = 0; i < amodule->info.nmethods; ++i) {
2183 if (amodule->info.llvm_get_method) {
2184 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2186 addr = get_method (i);
2189 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2190 if (!addr && amodule->info.method_addresses) {
2191 addr = get_call_table_entry (amodule->info.method_addresses, i);
2193 if (addr == amodule->info.method_addresses)
2197 amodule->methods [i] = GINT_TO_POINTER (-1);
2199 amodule->methods [i] = addr;
2202 if (make_unreadable) {
2203 #ifndef TARGET_WIN32
2205 guint8 *page_start, *page_end;
2208 addr = amodule->mem_begin;
2210 len = amodule->mem_end - amodule->mem_begin;
2212 /* Round down in both directions to avoid modifying data which is not ours */
2213 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2214 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2215 if (page_end > page_start) {
2216 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2217 g_assert (err == 0);
2222 /* Compute the boundaries of LLVM code */
2223 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2224 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2228 if (amodule->jit_code_start) {
2229 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2230 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2232 if (amodule->llvm_code_start) {
2233 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2234 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2237 g_hash_table_insert (aot_modules, assembly, amodule);
2240 if (amodule->jit_code_start)
2241 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2242 if (amodule->llvm_code_start)
2243 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2245 assembly->image->aot_module = amodule;
2247 if (mono_aot_only && !mono_llvm_only) {
2249 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2250 amodule->use_page_trampolines = code != NULL;
2251 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2255 * Register the plt region as a single trampoline so we can unwind from this code
2257 mono_tramp_info_register (
2258 mono_tramp_info_create (
2261 amodule->plt_end - amodule->plt,
2263 mono_unwind_get_cie_program ()
2269 * Since we store methoddef and classdef tokens when referring to methods/classes in
2270 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2271 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2272 * non-lazily, since we can't handle out-of-date errors later.
2273 * The cached class info also depends on the exact assemblies.
2275 #if defined(__native_client__)
2276 /* TODO: Don't 'load_image' on mscorlib due to a */
2277 /* recursive loading problem. This should be */
2278 /* removed if mscorlib is loaded from disk. */
2279 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2280 do_load_image = TRUE;
2282 do_load_image = FALSE;
2285 if (do_load_image) {
2286 for (i = 0; i < amodule->image_table_len; ++i) {
2288 load_image (amodule, i, &error);
2289 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2293 if (amodule->out_of_date) {
2294 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);
2296 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);
2299 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2303 * mono_aot_register_module:
2305 * This should be called by embedding code to register AOT modules statically linked
2306 * into the executable. AOT_INFO should be the value of the
2307 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2310 mono_aot_register_module (gpointer *aot_info)
2314 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2316 g_assert (info->version == MONO_AOT_FILE_VERSION);
2318 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2319 globals = (void **)info->globals;
2323 aname = (char *)info->assembly_name;
2325 /* This could be called before startup */
2329 if (!static_aot_modules)
2330 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2332 g_hash_table_insert (static_aot_modules, aname, info);
2339 mono_aot_init (void)
2341 mono_os_mutex_init_recursive (&aot_mutex);
2342 mono_os_mutex_init_recursive (&aot_page_mutex);
2343 aot_modules = g_hash_table_new (NULL, NULL);
2345 #ifndef __native_client__
2346 mono_install_assembly_load_hook (load_aot_module, NULL);
2348 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2350 if (g_getenv ("MONO_LASTAOT"))
2351 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2356 mono_aot_cleanup (void)
2358 if (aot_jit_icall_hash)
2359 g_hash_table_destroy (aot_jit_icall_hash);
2361 g_hash_table_destroy (aot_modules);
2365 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2371 info->vtable_size = decode_value (buf, &buf);
2372 if (info->vtable_size == -1)
2375 flags = decode_value (buf, &buf);
2376 info->ghcimpl = (flags >> 0) & 0x1;
2377 info->has_finalize = (flags >> 1) & 0x1;
2378 info->has_cctor = (flags >> 2) & 0x1;
2379 info->has_nested_classes = (flags >> 3) & 0x1;
2380 info->blittable = (flags >> 4) & 0x1;
2381 info->has_references = (flags >> 5) & 0x1;
2382 info->has_static_refs = (flags >> 6) & 0x1;
2383 info->no_special_static_fields = (flags >> 7) & 0x1;
2384 info->is_generic_container = (flags >> 8) & 0x1;
2386 if (info->has_cctor) {
2387 res = decode_method_ref (module, &ref, buf, &buf);
2390 info->cctor_token = ref.token;
2392 if (info->has_finalize) {
2393 res = decode_method_ref (module, &ref, buf, &buf);
2396 info->finalize_image = ref.image;
2397 info->finalize_token = ref.token;
2400 info->instance_size = decode_value (buf, &buf);
2401 info->class_size = decode_value (buf, &buf);
2402 info->packing_size = decode_value (buf, &buf);
2403 info->min_align = decode_value (buf, &buf);
2411 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2414 MonoClass *klass = vtable->klass;
2415 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2417 MonoCachedClassInfo class_info;
2422 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2425 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2428 err = decode_cached_class_info (amodule, &class_info, p, &p);
2432 for (i = 0; i < slot; ++i)
2433 decode_method_ref (amodule, &ref, p, &p);
2435 res = decode_method_ref (amodule, &ref, p, &p);
2438 if (ref.no_aot_trampoline)
2441 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2444 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2448 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2450 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2454 if (klass->rank || !amodule)
2457 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2459 err = decode_cached_class_info (amodule, res, p, &p);
2467 * mono_aot_get_class_from_name:
2469 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2470 * using a cache stored in the AOT file.
2471 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2473 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2477 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2479 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2480 guint16 *table, *entry;
2483 char full_name_buf [1024];
2485 const char *name2, *name_space2;
2487 guint32 cols [MONO_TYPEDEF_SIZE];
2488 GHashTable *nspace_table;
2490 if (!amodule || !amodule->class_name_table)
2493 amodule_lock (amodule);
2497 /* First look in the cache */
2498 if (!amodule->name_cache)
2499 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2500 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2502 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2504 amodule_unlock (amodule);
2509 table_size = amodule->class_name_table [0];
2510 table = amodule->class_name_table + 1;
2512 if (name_space [0] == '\0')
2513 full_name = g_strdup_printf ("%s", name);
2515 if (strlen (name_space) + strlen (name) < 1000) {
2516 sprintf (full_name_buf, "%s.%s", name_space, name);
2517 full_name = full_name_buf;
2519 full_name = g_strdup_printf ("%s.%s", name_space, name);
2522 hash = mono_metadata_str_hash (full_name) % table_size;
2523 if (full_name != full_name_buf)
2526 entry = &table [hash * 2];
2528 if (entry [0] != 0) {
2529 t = &image->tables [MONO_TABLE_TYPEDEF];
2532 guint32 index = entry [0];
2533 guint32 next = entry [1];
2534 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2536 name_table_accesses ++;
2538 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2540 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2541 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2543 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2545 amodule_unlock (amodule);
2546 *klass = mono_class_get_checked (image, token, &error);
2547 if (!mono_error_ok (&error))
2548 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2552 amodule_lock (amodule);
2553 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2554 if (!nspace_table) {
2555 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2556 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2558 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2559 amodule_unlock (amodule);
2565 entry = &table [next * 2];
2572 amodule_unlock (amodule);
2577 /* Compute the boundaries of the LLVM code for AMODULE. */
2579 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2582 int version, fde_count;
2585 if (amodule->info.llvm_get_method) {
2586 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2588 *code_start = (guint8 *)get_method (-1);
2589 *code_end = (guint8 *)get_method (-2);
2591 g_assert (*code_end > *code_start);
2595 g_assert (amodule->mono_eh_frame);
2597 p = amodule->mono_eh_frame;
2599 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2603 g_assert (version == 3);
2606 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2608 fde_count = *(guint32*)p;
2612 if (fde_count > 0) {
2613 *code_start = (guint8 *)amodule->methods [table [0]];
2614 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2622 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2624 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2631 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2633 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2640 * decode_llvm_mono_eh_frame:
2642 * Decode the EH information emitted by our modified LLVM compiler and construct a
2643 * MonoJitInfo structure from it.
2644 * LOCKING: Acquires the domain lock.
2647 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2648 MonoMethod *method, guint8 *code, guint32 code_len,
2649 MonoJitExceptionInfo *clauses, int num_clauses,
2650 MonoJitInfoFlags flags,
2652 int *this_reg, int *this_offset)
2654 guint8 *p, *code1, *code2;
2655 guint8 *fde, *cie, *code_start, *code_end;
2656 int version, fde_count;
2658 int i, pos, left, right;
2659 MonoJitExceptionInfo *ei;
2660 guint32 fde_len, ei_len, nested_len, nindex;
2661 gpointer *type_info;
2663 MonoLLVMFDEInfo info;
2665 if (!amodule->mono_eh_frame) {
2666 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2667 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2668 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2672 g_assert (amodule->mono_eh_frame && code);
2674 p = amodule->mono_eh_frame;
2676 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2680 g_assert (version == 3);
2682 /* func_encoding = *p; */
2684 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2686 fde_count = *(guint32*)p;
2690 /* There is +1 entry in the table */
2691 cie = p + ((fde_count + 1) * 8);
2693 /* Binary search in the table to find the entry for code */
2697 pos = (left + right) / 2;
2699 /* The table contains method index/fde offset pairs */
2700 g_assert (table [(pos * 2)] != -1);
2701 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2702 if (pos + 1 == fde_count) {
2703 code2 = amodule->llvm_code_end;
2705 g_assert (table [(pos + 1) * 2] != -1);
2706 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2711 else if (code >= code2)
2717 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2718 if (pos + 1 == fde_count) {
2719 /* The +1 entry in the table contains the length of the last method */
2720 int len = table [(pos + 1) * 2];
2721 code_end = code_start + len;
2723 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2726 code_len = code_end - code_start;
2728 g_assert (code >= code_start && code < code_end);
2730 if (is_thumb_code (amodule, code_start))
2731 /* Clear thumb flag */
2732 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2734 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2735 /* This won't overflow because there is +1 entry in the table */
2736 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2738 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2740 ei_len = info.ex_info_len;
2741 type_info = info.type_info;
2742 *this_reg = info.this_reg;
2743 *this_offset = info.this_offset;
2745 /* Count number of nested clauses */
2747 for (i = 0; i < ei_len; ++i) {
2748 /* This might be unaligned */
2749 gint32 cindex1 = read32 (type_info [i]);
2752 for (l = nesting [cindex1]; l; l = l->next)
2757 * LLVM might represent one IL region with multiple regions, so have to
2758 * allocate a new JI.
2761 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2762 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2764 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2765 /* This signals that unwind_info points to a normal cached unwind info */
2766 jinfo->from_aot = 0;
2767 jinfo->from_llvm = 1;
2769 for (i = 0; i < ei_len; ++i) {
2771 * clauses contains the original IL exception info saved by the AOT
2772 * compiler, we have to combine that with the information produced by LLVM
2774 /* The type_info entries contain IL clause indexes */
2775 int clause_index = read32 (type_info [i]);
2776 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2777 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2779 g_assert (clause_index < num_clauses);
2780 jei->flags = orig_jei->flags;
2781 jei->data.catch_class = orig_jei->data.catch_class;
2783 jei->try_start = ei [i].try_start;
2784 jei->try_end = ei [i].try_end;
2785 jei->handler_start = ei [i].handler_start;
2786 jei->clause_index = clause_index;
2788 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2789 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2790 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2791 /* Make sure we transition to thumb when a handler starts */
2792 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2796 /* See exception_cb () in mini-llvm.c as to why this is needed */
2798 for (i = 0; i < ei_len; ++i) {
2799 gint32 cindex1 = read32 (type_info [i]);
2802 for (l = nesting [cindex1]; l; l = l->next) {
2803 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2804 MonoJitExceptionInfo *nesting_ei;
2805 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2807 nesting_ei = &jinfo->clauses [nindex];
2810 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2811 nesting_ei->flags = nesting_clause->flags;
2812 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2813 nesting_ei->clause_index = nesting_cindex;
2816 g_assert (nindex == ei_len + nested_len);
2822 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2826 if (async_context) {
2827 res = mono_domain_alloc0_lock_free (domain, size);
2828 InterlockedExchangeAdd (&async_jit_info_size, size);
2830 res = mono_domain_alloc0 (domain, size);
2836 * LOCKING: Acquires the domain lock.
2837 * In async context, this is async safe.
2840 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2841 MonoMethod *method, guint8* ex_info,
2842 guint8 *code, guint32 code_len)
2845 int i, buf_len, num_clauses, len;
2847 MonoJitInfoFlags flags = JIT_INFO_NONE;
2848 guint unwind_info, eflags;
2849 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2850 gboolean from_llvm, has_gc_map;
2852 int try_holes_info_size, num_holes;
2853 int this_reg = 0, this_offset = 0;
2856 /* Load the method info from the AOT file */
2857 async = mono_thread_info_is_async_context ();
2860 eflags = decode_value (p, &p);
2861 has_generic_jit_info = (eflags & 1) != 0;
2862 has_dwarf_unwind_info = (eflags & 2) != 0;
2863 has_clauses = (eflags & 4) != 0;
2864 has_seq_points = (eflags & 8) != 0;
2865 from_llvm = (eflags & 16) != 0;
2866 has_try_block_holes = (eflags & 32) != 0;
2867 has_gc_map = (eflags & 64) != 0;
2868 has_arch_eh_jit_info = (eflags & 128) != 0;
2870 if (has_dwarf_unwind_info) {
2871 unwind_info = decode_value (p, &p);
2872 g_assert (unwind_info < (1 << 30));
2874 unwind_info = decode_value (p, &p);
2876 if (has_generic_jit_info)
2877 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2879 if (has_try_block_holes) {
2880 num_holes = decode_value (p, &p);
2881 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2882 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2884 num_holes = try_holes_info_size = 0;
2887 if (has_arch_eh_jit_info) {
2888 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2889 /* Overwrite the original code_len which includes alignment padding */
2890 code_len = decode_value (p, &p);
2893 /* Exception table */
2895 num_clauses = decode_value (p, &p);
2900 MonoJitExceptionInfo *clauses;
2907 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2910 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2911 nesting = g_new0 (GSList*, num_clauses);
2913 for (i = 0; i < num_clauses; ++i) {
2914 MonoJitExceptionInfo *ei = &clauses [i];
2916 ei->flags = decode_value (p, &p);
2918 if (decode_value (p, &p)) {
2919 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2920 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2923 ei->clause_index = i;
2925 ei->try_offset = decode_value (p, &p);
2926 ei->try_len = decode_value (p, &p);
2927 ei->handler_offset = decode_value (p, &p);
2928 ei->handler_len = decode_value (p, &p);
2930 /* Read the list of nesting clauses */
2932 int nesting_index = decode_value (p, &p);
2933 if (nesting_index == -1)
2935 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2939 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2942 for (i = 0; i < num_clauses; ++i)
2943 g_slist_free (nesting [i]);
2946 len = mono_jit_info_size (flags, num_clauses, num_holes);
2947 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2948 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2950 for (i = 0; i < jinfo->num_clauses; ++i) {
2951 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2953 ei->flags = decode_value (p, &p);
2955 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2956 /* Not used for catch clauses */
2957 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2958 ei->exvar_offset = decode_value (p, &p);
2960 ei->exvar_offset = decode_value (p, &p);
2963 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2964 ei->data.filter = code + decode_value (p, &p);
2966 int len = decode_value (p, &p);
2972 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2973 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2978 ei->try_start = code + decode_value (p, &p);
2979 ei->try_end = code + decode_value (p, &p);
2980 ei->handler_start = code + decode_value (p, &p);
2983 jinfo->unwind_info = unwind_info;
2984 jinfo->domain_neutral = 0;
2985 jinfo->from_aot = 1;
2988 if (has_try_block_holes) {
2989 MonoTryBlockHoleTableJitInfo *table;
2991 g_assert (jinfo->has_try_block_holes);
2993 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2996 table->num_holes = (guint16)num_holes;
2997 for (i = 0; i < num_holes; ++i) {
2998 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2999 hole->clause = decode_value (p, &p);
3000 hole->length = decode_value (p, &p);
3001 hole->offset = decode_value (p, &p);
3005 if (has_arch_eh_jit_info) {
3006 MonoArchEHJitInfo *eh_info;
3008 g_assert (jinfo->has_arch_eh_info);
3010 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3011 eh_info->stack_size = decode_value (p, &p);
3012 eh_info->epilog_size = decode_value (p, &p);
3016 /* The rest is not needed in async mode */
3017 jinfo->async = TRUE;
3018 jinfo->d.aot_info = amodule;
3023 if (has_generic_jit_info) {
3024 MonoGenericJitInfo *gi;
3027 g_assert (jinfo->has_generic_jit_info);
3029 gi = mono_jit_info_get_generic_jit_info (jinfo);
3032 gi->nlocs = decode_value (p, &p);
3034 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3035 for (i = 0; i < gi->nlocs; ++i) {
3036 MonoDwarfLocListEntry *entry = &gi->locations [i];
3038 entry->is_reg = decode_value (p, &p);
3039 entry->reg = decode_value (p, &p);
3041 entry->offset = decode_value (p, &p);
3043 entry->from = decode_value (p, &p);
3044 entry->to = decode_value (p, &p);
3049 gi->has_this = this_reg != -1;
3050 gi->this_reg = this_reg;
3051 gi->this_offset = this_offset;
3053 gi->has_this = decode_value (p, &p);
3054 gi->this_reg = decode_value (p, &p);
3055 gi->this_offset = decode_value (p, &p);
3059 len = decode_value (p, &p);
3063 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
3065 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
3066 if (decode_value (p, &p)) {
3068 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3070 gsctx->is_gsharedvt = TRUE;
3074 if (method && has_seq_points) {
3075 MonoSeqPointInfo *seq_points;
3077 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3079 mono_domain_lock (domain);
3080 /* This could be set already since this function can be called more than once for the same method */
3081 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3082 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3084 mono_seq_point_info_free (seq_points);
3085 mono_domain_unlock (domain);
3088 /* Load debug info */
3089 buf_len = decode_value (p, &p);
3091 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3095 int map_size = decode_value (p, &p);
3096 /* The GC map requires 4 bytes of alignment */
3097 while ((guint64)(gsize)p % 4)
3103 if (amodule != jinfo->d.method->klass->image->aot_module) {
3106 ji_to_amodule = g_hash_table_new (NULL, NULL);
3107 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3115 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3117 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3118 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3122 * mono_aot_get_unwind_info:
3124 * Return a pointer to the DWARF unwind info belonging to JI.
3127 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3129 MonoAotModule *amodule;
3131 guint8 *code = (guint8 *)ji->code_start;
3134 amodule = (MonoAotModule *)ji->d.aot_info;
3136 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3138 g_assert (ji->from_aot);
3140 if (!amodule_contains_code_addr (amodule, code)) {
3141 /* ji belongs to a different aot module than amodule */
3143 g_assert (ji_to_amodule);
3144 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3146 g_assert (amodule_contains_code_addr (amodule, code));
3150 p = amodule->unwind_info + ji->unwind_info;
3151 *unwind_info_len = decode_value (p, &p);
3156 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3158 int mid = (lo + hi) / 2;
3165 for (i = lo; i < hi; ++i)
3166 if (array [i] > array [i + 1])
3169 /* Already sorted */
3173 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3174 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3176 if (array [mid] < array [mid + 1])
3182 for (i = lo; i <= hi; i ++) {
3183 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3184 scratch [i] = array [t_lo];
3185 scratch_indexes [i] = indexes [t_lo];
3188 scratch [i] = array [t_hi];
3189 scratch_indexes [i] = indexes [t_hi];
3193 for (i = lo; i <= hi; ++i) {
3194 array [i] = scratch [i];
3195 indexes [i] = scratch_indexes [i];
3200 msort_method_addresses (gpointer *array, int *indexes, int len)
3203 int *scratch_indexes;
3205 scratch = g_new (gpointer, len);
3206 scratch_indexes = g_new (int, len);
3207 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3209 g_free (scratch_indexes);
3213 * mono_aot_find_jit_info:
3215 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3216 * to the jit info tables.
3217 * FIXME: Large sizes in the lock free allocator
3220 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3222 int pos, left, right, code_len;
3223 int method_index, table_len;
3225 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3226 MonoMethod *method = NULL;
3228 guint8 *code, *ex_info, *p;
3232 guint8 *code1, *code2;
3239 nmethods = amodule->info.nmethods;
3241 if (domain != mono_get_root_domain ())
3245 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3248 async = mono_thread_info_is_async_context ();
3250 /* Compute a sorted table mapping code to method indexes. */
3251 if (!amodule->sorted_methods) {
3253 gpointer *methods = g_new0 (gpointer, nmethods);
3254 int *method_indexes = g_new0 (int, nmethods);
3255 int methods_len = 0;
3257 for (i = 0; i < nmethods; ++i) {
3258 /* Skip the -1 entries to speed up sorting */
3259 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3261 methods [methods_len] = amodule->methods [i];
3262 method_indexes [methods_len] = i;
3265 /* Use a merge sort as this is mostly sorted */
3266 msort_method_addresses (methods, method_indexes, methods_len);
3267 for (i = 0; i < methods_len -1; ++i)
3268 g_assert (methods [i] <= methods [i + 1]);
3269 amodule->sorted_methods_len = methods_len;
3270 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3271 /* Somebody got in before us */
3273 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3274 /* Somebody got in before us */
3275 g_free (method_indexes);
3278 /* Binary search in the sorted_methods table */
3279 methods = amodule->sorted_methods;
3280 methods_len = amodule->sorted_methods_len;
3281 code = (guint8 *)addr;
3283 right = methods_len;
3285 pos = (left + right) / 2;
3287 code1 = (guint8 *)methods [pos];
3288 if (pos + 1 == methods_len) {
3289 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3290 code2 = amodule->jit_code_end;
3292 code2 = amodule->llvm_code_end;
3294 code2 = (guint8 *)methods [pos + 1];
3299 else if (code >= code2)
3305 g_assert (addr >= methods [pos]);
3306 if (pos + 1 < methods_len)
3307 g_assert (addr < methods [pos + 1]);
3308 method_index = amodule->sorted_method_indexes [pos];
3310 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3312 JitInfoMap *table = amodule->async_jit_info_table;
3316 len = table [0].method_index;
3317 for (i = 1; i < len; ++i) {
3318 if (table [i].method_index == method_index)
3319 return table [i].jinfo;
3324 code = (guint8 *)amodule->methods [method_index];
3325 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3327 if (pos == methods_len - 1) {
3328 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3329 code_len = amodule->jit_code_end - code;
3331 code_len = amodule->llvm_code_end - code;
3333 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3336 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3338 /* Might be a wrapper/extra method */
3340 if (amodule->extra_methods) {
3341 amodule_lock (amodule);
3342 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3343 amodule_unlock (amodule);
3349 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3351 * This is hit for extra methods which are called directly, so they are
3352 * not in amodule->extra_methods.
3354 table_len = amodule->extra_method_info_offsets [0];
3355 table = amodule->extra_method_info_offsets + 1;
3362 pos = ((left + right) / 2);
3364 g_assert (pos < table_len);
3366 if (table [pos * 2] < method_index)
3368 else if (table [pos * 2] > method_index)
3374 p = amodule->blob + table [(pos * 2) + 1];
3375 method = decode_resolve_method_ref (amodule, p, &p);
3377 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3381 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3382 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3384 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3391 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3393 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3395 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3397 /* Add it to the normal JitInfo tables */
3399 JitInfoMap *old_table, *new_table;
3403 * Use a simple inmutable table with linear search to cache async jit info entries.
3404 * This assumes that the number of entries is small.
3407 /* Copy the table, adding a new entry at the end */
3408 old_table = amodule->async_jit_info_table;
3410 len = old_table[0].method_index;
3413 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3415 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3416 new_table [0].method_index = len + 1;
3417 new_table [len].method_index = method_index;
3418 new_table [len].jinfo = jinfo;
3420 mono_memory_barrier ();
3421 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3425 mono_jit_info_table_add (domain, jinfo);
3428 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3429 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3436 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3445 case MONO_PATCH_INFO_METHOD:
3446 case MONO_PATCH_INFO_METHOD_JUMP:
3447 case MONO_PATCH_INFO_ICALL_ADDR:
3448 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3449 case MONO_PATCH_INFO_METHOD_RGCTX:
3450 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3454 res = decode_method_ref (aot_module, &ref, p, &p);
3458 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)) {
3459 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3460 ji->type = MONO_PATCH_INFO_ABS;
3464 ji->data.method = ref.method;
3467 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3468 if (!ji->data.method)
3469 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3471 g_assert (ji->data.method);
3472 mono_class_init (ji->data.method->klass);
3476 case MONO_PATCH_INFO_INTERNAL_METHOD:
3477 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3478 guint32 len = decode_value (p, &p);
3480 ji->data.name = (char*)p;
3484 case MONO_PATCH_INFO_METHODCONST:
3486 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3487 if (!ji->data.method)
3490 case MONO_PATCH_INFO_VTABLE:
3491 case MONO_PATCH_INFO_CLASS:
3492 case MONO_PATCH_INFO_IID:
3493 case MONO_PATCH_INFO_ADJUSTED_IID:
3495 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3496 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3497 if (!ji->data.klass)
3500 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3501 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3502 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3503 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3504 if (!ji->data.del_tramp->klass)
3506 if (decode_value (p, &p)) {
3507 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3508 if (!ji->data.del_tramp->method)
3511 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3513 case MONO_PATCH_INFO_IMAGE:
3514 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3515 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3516 if (!ji->data.image)
3519 case MONO_PATCH_INFO_FIELD:
3520 case MONO_PATCH_INFO_SFLDA:
3522 ji->data.field = decode_field_info (aot_module, p, &p);
3523 if (!ji->data.field)
3526 case MONO_PATCH_INFO_SWITCH:
3527 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3528 ji->data.table->table_size = decode_value (p, &p);
3529 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3530 ji->data.table->table = (MonoBasicBlock**)table;
3531 for (i = 0; i < ji->data.table->table_size; i++)
3532 table [i] = (gpointer)(gssize)decode_value (p, &p);
3534 case MONO_PATCH_INFO_R4: {
3537 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3538 val = decode_value (p, &p);
3539 *(float*)ji->data.target = *(float*)&val;
3542 case MONO_PATCH_INFO_R8: {
3546 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3548 val [0] = decode_value (p, &p);
3549 val [1] = decode_value (p, &p);
3550 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3551 *(double*)ji->data.target = *(double*)&v;
3554 case MONO_PATCH_INFO_LDSTR:
3555 image = load_image (aot_module, decode_value (p, &p), &error);
3556 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3559 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3561 case MONO_PATCH_INFO_RVA:
3562 case MONO_PATCH_INFO_DECLSEC:
3563 case MONO_PATCH_INFO_LDTOKEN:
3564 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3566 image = load_image (aot_module, decode_value (p, &p), &error);
3567 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3570 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3572 ji->data.token->has_context = decode_value (p, &p);
3573 if (ji->data.token->has_context) {
3574 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3579 case MONO_PATCH_INFO_EXC_NAME:
3580 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3581 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3582 if (!ji->data.klass)
3584 ji->data.name = ji->data.klass->name;
3586 case MONO_PATCH_INFO_METHOD_REL:
3587 ji->data.offset = decode_value (p, &p);
3589 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3590 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3591 case MONO_PATCH_INFO_GC_NURSERY_START:
3592 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3593 case MONO_PATCH_INFO_JIT_TLS_ID:
3595 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3596 ji->data.index = decode_value (p, &p);
3598 case MONO_PATCH_INFO_RGCTX_FETCH:
3599 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3601 MonoJumpInfoRgctxEntry *entry;
3602 guint32 offset, val;
3605 offset = decode_value (p, &p);
3606 val = decode_value (p, &p);
3608 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3609 p2 = aot_module->blob + offset;
3610 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3611 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3612 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3613 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3614 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3616 res = decode_patch (aot_module, mp, entry->data, p, &p);
3619 ji->data.rgctx_entry = entry;
3622 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3623 case MONO_PATCH_INFO_AOT_MODULE:
3624 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3626 case MONO_PATCH_INFO_SIGNATURE:
3627 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3628 ji->data.target = decode_signature (aot_module, p, &p);
3630 case MONO_PATCH_INFO_TLS_OFFSET:
3631 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3633 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3634 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3635 info->sig = decode_signature (aot_module, p, &p);
3636 g_assert (info->sig);
3637 info->method = decode_resolve_method_ref (aot_module, p, &p);
3638 g_assert (info->method);
3640 ji->data.target = info;
3643 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3644 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3647 info->method = decode_resolve_method_ref (aot_module, p, &p);
3648 g_assert (info->method);
3649 info->num_entries = decode_value (p, &p);
3650 info->count_entries = info->num_entries;
3651 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3652 for (i = 0; i < info->num_entries; ++i) {
3653 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3655 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3656 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3657 case MONO_PATCH_INFO_CLASS: {
3658 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3659 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3662 template_->data = &klass->byval_arg;
3665 case MONO_PATCH_INFO_FIELD:
3666 template_->data = decode_field_info (aot_module, p, &p);
3667 if (!template_->data)
3671 g_assert_not_reached ();
3675 ji->data.target = info;
3678 case MONO_PATCH_INFO_LDSTR_LIT: {
3679 int len = decode_value (p, &p);
3682 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3683 memcpy (s, p, len + 1);
3686 ji->data.target = s;
3689 case MONO_PATCH_INFO_VIRT_METHOD: {
3690 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3692 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3693 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3694 g_assert (info->klass);
3695 info->method = decode_resolve_method_ref (aot_module, p, &p);
3696 g_assert (info->method);
3698 ji->data.target = info;
3701 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3703 case MONO_PATCH_INFO_AOT_JIT_INFO:
3704 ji->data.index = decode_value (p, &p);
3707 g_warning ("unhandled type %d", ji->type);
3708 g_assert_not_reached ();
3722 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3723 * MonoJumpInfo structures allocated from MP.
3725 static MonoJumpInfo*
3726 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3728 MonoJumpInfo *patches;
3731 guint32 *got_info_offsets;
3736 got = amodule->llvm_got;
3737 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3740 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3743 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3744 for (i = 0; i < n_patches; ++i) {
3745 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3748 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3750 /* See load_method () for SFLDA */
3751 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3752 /* Already loaded */
3754 res = decode_patch (amodule, mp, ji, p, &p);
3763 static MonoJumpInfo*
3764 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3765 gboolean llvm, guint32 **got_slots,
3766 guint8 *buf, guint8 **endbuf)
3768 MonoJumpInfo *patches;
3774 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3775 for (pindex = 0; pindex < n_patches; ++pindex) {
3776 (*got_slots)[pindex] = decode_value (p, &p);
3779 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3781 g_free (*got_slots);
3791 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3794 * Jump addresses cannot be patched by the trampoline code since it
3795 * does not have access to the caller's address. Instead, we collect
3796 * the addresses of the GOT slots pointing to a method, and patch
3797 * them after the method has been compiled.
3799 MonoJitDomainInfo *info = domain_jit_info (domain);
3802 mono_domain_lock (domain);
3803 if (!info->jump_target_got_slot_hash)
3804 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3805 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3806 list = g_slist_prepend (list, got_slot);
3807 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3808 mono_domain_unlock (domain);
3814 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3815 * pointer to the native code of the method, or NULL if not found.
3816 * METHOD might not be set if the caller only has the image/token info.
3819 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3821 MonoJitInfo *jinfo = NULL;
3822 guint8 *code = NULL, *info;
3825 init_amodule_got (amodule);
3827 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3829 /* The caller cannot handle this */
3830 g_assert_not_reached ();
3834 if (domain != mono_get_root_domain ())
3835 /* Non shared AOT code can't be used in other appdomains */
3838 if (amodule->out_of_date)
3841 if (amodule->info.llvm_get_method) {
3843 * Obtain the method address by calling a generated function in the LLVM module.
3845 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3846 code = (guint8 *)get_method (method_index);
3851 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3852 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3857 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3858 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3860 full_name = mono_method_full_name (method, TRUE);
3861 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3866 code = (guint8 *)amodule->methods [method_index];
3869 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3871 if (!amodule->methods_loaded) {
3872 amodule_lock (amodule);
3873 if (!amodule->methods_loaded) {
3876 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3877 mono_memory_barrier ();
3878 amodule->methods_loaded = loaded;
3880 amodule_unlock (amodule);
3883 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3886 if (mono_last_aot_method != -1) {
3887 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3889 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3892 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3894 mono_error_cleanup (&error);/* FIXME don't swallow the error */
3897 char *name = mono_method_full_name (method, TRUE);
3898 g_print ("LAST AOT METHOD: %s.\n", name);
3901 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3906 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3909 res = init_method (amodule, method_index, method, NULL, NULL, &error);
3910 if (!mono_error_ok (&error))
3911 mono_error_raise_exception (&error); /* FIXME: Don't raise here */
3916 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3921 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3923 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3926 full_name = mono_method_full_name (method, TRUE);
3929 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3931 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3935 amodule_lock (amodule);
3937 InterlockedIncrement (&mono_jit_stats.methods_aot);
3939 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3943 if (method && method->wrapper_type)
3944 g_hash_table_insert (amodule->method_to_code, method, code);
3946 amodule_unlock (amodule);
3948 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3953 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, &error);
3955 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3957 mono_profiler_method_jit (method);
3958 jinfo = mono_jit_info_table_find (domain, (char*)code);
3960 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3973 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3975 guint32 table_size, entry_size, hash;
3976 guint32 *table, *entry;
3978 static guint32 n_extra_decodes;
3980 if (!amodule || amodule->out_of_date)
3983 table_size = amodule->extra_method_table [0];
3984 hash = hash_full % table_size;
3985 table = amodule->extra_method_table + 1;
3988 entry = &table [hash * entry_size];
3995 guint32 key = entry [0];
3996 guint32 value = entry [1];
3997 guint32 next = entry [entry_size - 1];
4001 p = amodule->blob + key;
4004 amodule_lock (amodule);
4005 if (!amodule->method_ref_to_method)
4006 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4007 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4008 amodule_unlock (amodule);
4010 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
4012 * Can't catche runtime invoke wrappers since it would break
4013 * the check in decode_method_ref_with_target ().
4015 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4016 amodule_lock (amodule);
4017 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4018 amodule_unlock (amodule);
4027 * Special case: wrappers of shared generic methods.
4028 * This is needed because of the way mini_get_shared_method () works,
4029 * we could end up with multiple copies of the same wrapper.
4031 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
4032 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
4033 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
4034 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
4036 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
4041 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
4042 method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
4043 WrapperInfo *info1 = mono_marshal_get_wrapper_info (method);
4044 WrapperInfo *info2 = mono_marshal_get_wrapper_info (m);
4046 if (info1 && info2 && info1->subtype == info2->subtype && method->klass == m->klass) {
4052 /* Methods decoded needlessly */
4054 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4059 entry = &table [next * entry_size];
4068 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4070 g_ptr_array_add ((GPtrArray*)user_data, value);
4076 * Try finding METHOD in the extra_method table in all AOT images.
4077 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4078 * module where the method was found.
4081 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4086 guint32 hash = mono_aot_method_hash (method);
4088 /* Try the method's module first */
4089 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4090 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4091 if (index != 0xffffff)
4095 * Try all other modules.
4096 * This is needed because generic instances klass->image points to the image
4097 * containing the generic definition, but the native code is generated to the
4098 * AOT image which contains the reference.
4101 /* Make a copy to avoid doing the search inside the aot lock */
4102 modules = g_ptr_array_new ();
4104 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4108 for (i = 0; i < modules->len; ++i) {
4109 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4111 if (amodule != method->klass->image->aot_module)
4112 index = find_aot_method_in_amodule (amodule, method, hash);
4113 if (index != 0xffffff) {
4114 *out_amodule = amodule;
4119 g_ptr_array_free (modules, TRUE);
4125 mono_aot_find_method_index (MonoMethod *method)
4127 MonoAotModule *out_amodule;
4128 return find_aot_method (method, &out_amodule);
4132 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4134 MonoDomain *domain = mono_domain_get ();
4136 MonoClass *klass_to_run_ctor = NULL;
4137 gboolean from_plt = method == NULL;
4138 int pindex, n_patches;
4140 MonoJitInfo *jinfo = NULL;
4141 guint8 *code, *info;
4143 mono_error_init (error);
4145 code = (guint8 *)amodule->methods [method_index];
4146 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4150 //does the method's class has a cctor?
4151 if (decode_value (p, &p) == 1)
4152 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4156 //FIXME old code would use the class from @method if not null and ignore the one encoded. I don't know if we need to honor that -- @kumpera
4158 klass_to_run_ctor = method->klass;
4160 n_patches = decode_value (p, &p);
4163 MonoJumpInfo *patches;
4168 mp = mono_mempool_new ();
4170 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4175 got = amodule->llvm_got;
4179 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4180 if (patches == NULL) {
4181 mono_mempool_destroy (mp);
4185 for (pindex = 0; pindex < n_patches; ++pindex) {
4186 MonoJumpInfo *ji = &patches [pindex];
4190 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4191 * been initialized by load_method () for a static cctor before the cctor has
4192 * finished executing (#23242).
4194 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4195 /* In llvm-only made, we might encounter shared methods */
4196 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4198 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4199 if (!mono_error_ok (error)) {
4201 mono_mempool_destroy (mp);
4205 /* This cannot be resolved in mono_resolve_patch_target () */
4206 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4207 // FIXME: Lookup using the index
4208 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4209 ji->type = MONO_PATCH_INFO_ABS;
4210 ji->data.target = jinfo;
4212 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4213 if (!mono_error_ok (error)) {
4215 mono_mempool_destroy (mp);
4218 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4219 addr = mono_create_ftnptr (domain, addr);
4220 mono_memory_barrier ();
4221 got [got_slots [pindex]] = addr;
4222 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4223 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4225 ji->type = MONO_PATCH_INFO_NONE;
4230 mono_mempool_destroy (mp);
4233 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4234 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4236 gboolean inited_ok = TRUE;
4238 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4239 else if (from_plt && klass_to_run_ctor && !klass_to_run_ctor->generic_container)
4240 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4254 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4256 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4260 // FIXME: Handle errors
4261 res = init_method (amodule, method_index, NULL, NULL, NULL, &error);
4266 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4268 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4271 MonoGenericContext *context;
4276 g_assert (this_obj);
4277 klass = this_obj->vtable->klass;
4279 amodule_lock (amodule);
4280 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4281 amodule_unlock (amodule);
4284 context = mono_method_get_context (method);
4287 res = init_method (amodule, method_index, NULL, klass, context, &error);
4292 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4294 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4296 MonoGenericContext context = { NULL, NULL };
4297 MonoClass *klass = rgctx->class_vtable->klass;
4300 if (klass->generic_class)
4301 context.class_inst = klass->generic_class->context.class_inst;
4302 else if (klass->generic_container)
4303 context.class_inst = klass->generic_container->context.class_inst;
4304 context.method_inst = rgctx->method_inst;
4306 res = init_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context, &error);
4311 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4313 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4316 MonoGenericContext *context;
4320 klass = vtable->klass;
4322 amodule_lock (amodule);
4323 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4324 amodule_unlock (amodule);
4327 context = mono_method_get_context (method);
4330 res = init_method (amodule, method_index, NULL, klass, context, &error);
4335 * mono_aot_get_method:
4337 * Return a pointer to the AOTed native code for METHOD if it can be found,
4339 * On platforms with function pointers, this doesn't return a function pointer.
4342 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4344 MonoClass *klass = method->klass;
4345 MonoMethod *orig_method = method;
4346 guint32 method_index;
4347 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4349 gboolean cache_result = FALSE;
4351 if (domain != mono_get_root_domain ())
4352 /* Non shared AOT code can't be used in other appdomains */
4355 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4356 /* This cannot be AOTed during startup, so do it now */
4357 if (!mscorlib_aot_loaded) {
4358 mscorlib_aot_loaded = TRUE;
4359 load_aot_module (klass->image->assembly, NULL);
4360 amodule = (MonoAotModule *)klass->image->aot_module;
4367 if (amodule->out_of_date)
4370 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4371 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4372 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4373 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4377 * Use the original method instead of its invoke-with-check wrapper.
4378 * This is not a problem when using full-aot, since it doesn't support
4381 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4382 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4384 g_assert (klass->inited);
4386 /* Find method index */
4387 method_index = 0xffffff;
4388 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4389 MonoMethod *orig_method = method;
4391 * For generic methods, we store the fully shared instance in place of the
4394 method = mono_method_get_declaring_generic_method (method);
4395 method_index = mono_metadata_token_index (method->token) - 1;
4397 if (mono_llvm_only) {
4398 /* Needed by mono_aot_init_gshared_method_this () */
4399 /* orig_method is a random instance but it is enough to make init_method () work */
4400 amodule_lock (amodule);
4401 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4402 amodule_unlock (amodule);
4404 } else if (method->is_inflated || !method->token) {
4405 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4406 amodule_lock (amodule);
4407 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4408 amodule_unlock (amodule);
4412 cache_result = TRUE;
4413 method_index = find_aot_method (method, &amodule);
4415 * Special case the ICollection<T> wrappers for arrays, as they cannot
4416 * be statically enumerated, and each wrapper ends up calling the same
4419 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4420 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4422 code = (guint8 *)mono_aot_get_method (domain, m);
4428 * Special case Array.GetGenericValueImpl which is a generic icall.
4429 * Generic sharing currently can't handle it, but the icall returns data using
4430 * an out parameter, so the managed-to-native wrappers can share the same code.
4432 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4435 MonoGenericContext ctx;
4436 MonoType *args [16];
4438 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4439 /* Avoid recursion */
4442 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4445 memset (&ctx, 0, sizeof (ctx));
4446 args [0] = &mono_defaults.object_class->byval_arg;
4447 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4449 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4451 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4454 * Get the code for the <object> instantiation which should be emitted into
4455 * the mscorlib aot image by the AOT compiler.
4457 code = (guint8 *)mono_aot_get_method (domain, m);
4462 /* Same for CompareExchange<T> and Exchange<T> */
4463 /* Same for Volatile.Read<T>/Write<T> */
4464 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4465 ((!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]))) ||
4466 (!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)))) ||
4467 (!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])))))) {
4470 MonoGenericContext ctx;
4471 MonoType *args [16];
4472 gpointer iter = NULL;
4474 while ((m = mono_class_get_methods (method->klass, &iter))) {
4475 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4480 memset (&ctx, 0, sizeof (ctx));
4481 args [0] = &mono_defaults.object_class->byval_arg;
4482 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4484 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4486 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4488 /* Avoid recursion */
4493 * Get the code for the <object> instantiation which should be emitted into
4494 * the mscorlib aot image by the AOT compiler.
4496 code = (guint8 *)mono_aot_get_method (domain, m);
4501 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4502 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4503 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4505 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4506 MonoMethod *array_method = info->d.array_accessor.method;
4507 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4508 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4509 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4512 m = mono_marshal_get_array_accessor_wrapper (m);
4514 code = (guint8 *)mono_aot_get_method (domain, m);
4522 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4523 /* Partial sharing */
4526 shared = mini_get_shared_method (method);
4527 method_index = find_aot_method (shared, &amodule);
4528 if (method_index != 0xffffff)
4532 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4535 /* Use the all-vt shared method since this is what was AOTed */
4536 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4537 method_index = find_aot_method (shared, &amodule);
4538 if (method_index != 0xffffff)
4539 method = mini_get_shared_method_full (method, TRUE, FALSE);
4542 if (method_index == 0xffffff) {
4543 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4546 full_name = mono_method_full_name (method, TRUE);
4547 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4553 if (method_index == 0xffffff)
4556 /* Needed by find_jit_info */
4557 amodule_lock (amodule);
4558 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4559 amodule_unlock (amodule);
4562 method_index = mono_metadata_token_index (method->token) - 1;
4565 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index);
4566 if (code && cache_result) {
4567 amodule_lock (amodule);
4568 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4569 amodule_unlock (amodule);
4575 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4579 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4581 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4587 method_index = mono_metadata_token_index (token) - 1;
4589 return load_method (domain, aot_module, image, NULL, token, method_index);
4595 } IsGotEntryUserData;
4598 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4600 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4601 MonoAotModule *aot_module = (MonoAotModule*)value;
4603 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4608 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4610 IsGotEntryUserData user_data;
4615 user_data.addr = addr;
4616 user_data.res = FALSE;
4618 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4621 return user_data.res;
4626 MonoAotModule *module;
4627 } FindAotModuleUserData;
4630 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4632 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4633 MonoAotModule *aot_module = (MonoAotModule*)value;
4635 if (amodule_contains_code_addr (aot_module, data->addr))
4636 data->module = aot_module;
4639 static inline MonoAotModule*
4640 find_aot_module (guint8 *code)
4642 FindAotModuleUserData user_data;
4647 /* Reading these need no locking */
4648 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4651 user_data.addr = code;
4652 user_data.module = NULL;
4655 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4658 return user_data.module;
4662 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4664 MonoAotModule *amodule;
4667 * Since AOT code is only used in the root domain,
4668 * mono_domain_get () != mono_get_root_domain () means the calling method
4669 * is AppDomain:InvokeInDomain, so this is the same check as in
4670 * mono_method_same_domain () but without loading the metadata for the method.
4672 if (mono_domain_get () == mono_get_root_domain ()) {
4674 amodule = find_aot_module (code);
4678 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4683 * mono_aot_plt_resolve:
4685 * This function is called by the entries in the PLT to resolve the actual method that
4686 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4687 * Returns NULL if the something cannot be loaded.
4690 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4692 #ifdef MONO_ARCH_AOT_SUPPORTED
4693 guint8 *p, *target, *plt_entry;
4695 MonoAotModule *module = (MonoAotModule*)aot_module;
4696 gboolean res, no_ftnptr = FALSE;
4698 gboolean using_gsharedvt = FALSE;
4700 mono_error_init (error);
4702 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4704 p = &module->blob [plt_info_offset];
4706 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4708 mp = mono_mempool_new ();
4709 res = decode_patch (module, mp, &ji, p, &p);
4712 mono_mempool_destroy (mp);
4716 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4717 using_gsharedvt = TRUE;
4721 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4722 * it would create a trampoline, and we don't need that.
4723 * We could do this only if the method does not need the special handling
4724 * in mono_magic_trampoline ().
4726 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) &&
4727 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4728 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4729 if (!mono_error_ok (error)) {
4730 mono_mempool_destroy (mp);
4735 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4736 if (!mono_error_ok (error)) {
4737 mono_mempool_destroy (mp);
4743 * The trampoline expects us to return a function descriptor on platforms which use
4744 * it, but resolve_patch_target returns a direct function pointer for some type of
4745 * patches, so have to translate between the two.
4746 * FIXME: Clean this up, but how ?
4748 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) {
4749 /* These should already have a function descriptor */
4750 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4751 /* Our function descriptors have a 0 environment, gcc created ones don't */
4752 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4753 g_assert (((gpointer*)target) [2] == 0);
4756 } else if (!no_ftnptr) {
4757 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4758 g_assert (((gpointer*)target) [2] != 0);
4760 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4763 mono_mempool_destroy (mp);
4765 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4766 plt_entry = mono_aot_get_plt_entry (code);
4767 g_assert (plt_entry);
4768 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4772 g_assert_not_reached ();
4780 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4781 * method in the module is loaded to avoid committing memory by writing to it.
4782 * LOCKING: Assumes the AMODULE lock is held.
4785 init_plt (MonoAotModule *amodule)
4790 if (amodule->plt_inited)
4793 if (amodule->info.plt_size <= 1) {
4794 amodule->plt_inited = TRUE;
4798 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4801 * Initialize the PLT entries in the GOT to point to the default targets.
4804 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4805 for (i = 1; i < amodule->info.plt_size; ++i)
4806 /* All the default entries point to the AOT trampoline */
4807 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4809 amodule->plt_inited = TRUE;
4813 * mono_aot_get_plt_entry:
4815 * Return the address of the PLT entry called by the code at CODE if exists.
4818 mono_aot_get_plt_entry (guint8 *code)
4820 MonoAotModule *amodule = find_aot_module (code);
4821 guint8 *target = NULL;
4827 if (is_thumb_code (amodule, code - 4))
4828 return mono_arm_get_thumb_plt_entry (code);
4831 #ifdef MONO_ARCH_AOT_SUPPORTED
4832 target = mono_arch_get_call_target (code);
4834 g_assert_not_reached ();
4838 while (target != NULL) {
4839 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4842 // Add 4 since mono_arch_get_call_target assumes we're passing
4843 // the instruction after the actual branch instruction.
4844 target = mono_arch_get_call_target (target + 4);
4849 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4857 * mono_aot_get_plt_info_offset:
4859 * Return the PLT info offset belonging to the plt entry called by CODE.
4862 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4864 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4866 g_assert (plt_entry);
4868 /* The offset is embedded inside the code after the plt entry */
4869 #ifdef MONO_ARCH_AOT_SUPPORTED
4870 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4872 g_assert_not_reached ();
4878 mono_create_ftnptr_malloc (guint8 *code)
4880 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4881 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4883 ftnptr->code = code;
4894 * mono_aot_register_jit_icall:
4896 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4897 * be called from mono_arch_init () during startup.
4900 mono_aot_register_jit_icall (const char *name, gpointer addr)
4902 /* No need for locking */
4903 if (!aot_jit_icall_hash)
4904 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4905 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4909 * load_function_full:
4911 * Load the function named NAME from the aot image.
4914 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4918 int n_patches, pindex;
4921 guint32 info_offset;
4925 symbol = g_strdup_printf ("%s", name);
4926 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4929 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4931 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4935 symbol = g_strdup_printf ("%s_p", name);
4936 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4939 /* Nothing to patch */
4942 info_offset = *(guint32*)p;
4944 MonoTrampInfo *tinfo;
4945 guint32 code_size, uw_info_len, uw_offset;
4947 /* Construct a MonoTrampInfo from the data in the AOT image */
4949 p += sizeof (guint32);
4950 code_size = *(guint32*)p;
4951 p += sizeof (guint32);
4952 uw_offset = *(guint32*)p;
4953 uw_info = amodule->unwind_info + uw_offset;
4954 uw_info_len = decode_value (uw_info, &uw_info);
4956 tinfo = g_new0 (MonoTrampInfo, 1);
4957 tinfo->code = (guint8 *)code;
4958 tinfo->code_size = code_size;
4959 tinfo->uw_info_len = uw_info_len;
4961 tinfo->uw_info = uw_info;
4966 p = amodule->blob + info_offset;
4968 /* Similar to mono_aot_load_method () */
4970 n_patches = decode_value (p, &p);
4973 MonoJumpInfo *patches;
4976 mp = mono_mempool_new ();
4978 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4981 for (pindex = 0; pindex < n_patches; ++pindex) {
4982 MonoJumpInfo *ji = &patches [pindex];
4986 if (amodule->got [got_slots [pindex]])
4990 * When this code is executed, the runtime may not be initalized yet, so
4991 * resolve the patch info by hand.
4993 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4994 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4995 target = mono_get_lmf_addr;
4996 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
4997 target = mono_thread_force_interruption_checkpoint_noraise;
4998 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
4999 target = mono_interruption_checkpoint_from_trampoline;
5000 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5001 target = mono_exception_from_token;
5002 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5003 target = mono_get_throw_exception ();
5004 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5005 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5006 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5007 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5008 /* atoll is needed because the the offset is unsigned */
5012 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5013 g_assert (res == 1);
5014 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5015 target = mono_create_ftnptr_malloc ((guint8 *)target);
5016 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
5017 target = mono_thread_get_and_clear_pending_exception;
5018 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5019 target = debugger_agent_single_step_from_context;
5020 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5021 target = debugger_agent_breakpoint_from_context;
5022 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5023 target = mono_get_throw_exception_addr ();
5024 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5025 target = mono_aot_get_trampoline (ji->data.name);
5026 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5027 /* Registered by mono_arch_init () */
5028 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5030 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5031 g_assert_not_reached ();
5035 /* Hopefully the code doesn't have patches which need method or
5038 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5039 mono_error_assert_ok (&error);
5043 amodule->got [got_slots [pindex]] = target;
5048 mono_mempool_destroy (mp);
5055 load_function (MonoAotModule *amodule, const char *name)
5057 return load_function_full (amodule, name, NULL);
5060 static MonoAotModule*
5061 get_mscorlib_aot_module (void)
5064 MonoAotModule *amodule;
5066 image = mono_defaults.corlib;
5068 amodule = (MonoAotModule *)image->aot_module;
5070 amodule = mscorlib_aot_module;
5076 no_trampolines (void)
5078 g_assert_not_reached ();
5082 * Return the trampoline identified by NAME from the mscorlib AOT file.
5083 * On ppc64, this returns a function descriptor.
5086 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5088 MonoAotModule *amodule = get_mscorlib_aot_module ();
5090 if (mono_llvm_only) {
5092 return no_trampolines;
5095 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5099 mono_aot_get_trampoline (const char *name)
5101 MonoTrampInfo *out_tinfo;
5104 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5105 mono_tramp_info_register (out_tinfo, NULL);
5111 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5113 gpointer symbol_addr;
5114 guint32 uw_offset, uw_info_len;
5117 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5122 uw_offset = *(guint32*)symbol_addr;
5123 uw_info = amodule->unwind_info + uw_offset;
5124 uw_info_len = decode_value (uw_info, &uw_info);
5126 info->uw_info_len = uw_info_len;
5128 info->uw_info = uw_info;
5130 info->uw_info = NULL;
5132 /* If successful return the address of the following data */
5133 return (guint32*)symbol_addr + 1;
5137 #include <mach/mach.h>
5139 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5142 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5144 char symbol_name [128];
5146 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5147 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5148 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5149 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5150 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5151 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5152 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5153 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5155 g_assert_not_reached ();
5157 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5160 static unsigned char*
5161 get_new_trampoline_from_page (int tramp_type)
5163 MonoAotModule *amodule;
5165 TrampolinePage *page;
5168 vm_address_t addr, taddr;
5170 vm_prot_t prot, max_prot;
5171 int psize, specific_trampoline_size;
5172 unsigned char *code;
5174 specific_trampoline_size = 2 * sizeof (gpointer);
5176 mono_aot_page_lock ();
5177 page = trampoline_pages [tramp_type];
5178 if (page && page->trampolines < page->trampolines_end) {
5179 code = page->trampolines;
5180 page->trampolines += specific_trampoline_size;
5181 mono_aot_page_unlock ();
5184 mono_aot_page_unlock ();
5185 /* the trampoline template page is in the mscorlib module */
5186 image = mono_defaults.corlib;
5189 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5191 amodule = image->aot_module;
5194 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5195 tpage = load_function (amodule, "specific_trampolines_page");
5196 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5197 tpage = load_function (amodule, "rgctx_trampolines_page");
5198 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5199 tpage = load_function (amodule, "imt_trampolines_page");
5200 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5201 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5203 g_error ("Incorrect tramp type for trampolines page");
5205 /*g_warning ("loaded trampolines page at %x", tpage);*/
5207 /* avoid the unlikely case of looping forever */
5210 while (page == NULL && count-- > 0) {
5211 MonoTrampInfo *gen_info, *sp_info;
5214 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5215 * while the second will contain the trampolines.
5217 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5218 if (ret != KERN_SUCCESS) {
5219 g_error ("Cannot allocate memory for trampolines: %d", ret);
5222 /*g_warning ("allocated trampoline double page at %x", addr);*/
5223 /* replace the second page with a remapped trampoline page */
5224 taddr = addr + psize;
5225 vm_deallocate (mach_task_self (), taddr, psize);
5226 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5227 if (ret != KERN_SUCCESS) {
5228 /* someone else got the page, try again */
5229 vm_deallocate (mach_task_self (), addr, psize);
5232 /*g_warning ("remapped trampoline page at %x", taddr);*/
5234 mono_aot_page_lock ();
5235 page = trampoline_pages [tramp_type];
5236 /* some other thread already allocated, so use that to avoid wasting memory */
5237 if (page && page->trampolines < page->trampolines_end) {
5238 code = page->trampolines;
5239 page->trampolines += specific_trampoline_size;
5240 mono_aot_page_unlock ();
5241 vm_deallocate (mach_task_self (), addr, psize);
5242 vm_deallocate (mach_task_self (), taddr, psize);
5245 page = (TrampolinePage*)addr;
5246 page->next = trampoline_pages [tramp_type];
5247 trampoline_pages [tramp_type] = page;
5248 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5249 page->trampolines_end = (void*)(taddr + psize - 64);
5250 code = page->trampolines;
5251 page->trampolines += specific_trampoline_size;
5252 mono_aot_page_unlock ();
5254 /* Register the generic part at the beggining of the trampoline page */
5255 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5256 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5257 mono_tramp_info_register (gen_info, NULL);
5260 * Registering each specific trampoline produces a lot of
5261 * MonoJitInfo structures. Jump trampolines are also registered
5264 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5265 /* Register the rest of the page as a single trampoline */
5266 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5267 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5268 mono_tramp_info_register (sp_info, NULL);
5272 g_error ("Cannot allocate more trampoline pages: %d", ret);
5277 static unsigned char*
5278 get_new_trampoline_from_page (int tramp_type)
5280 g_error ("Page trampolines not supported.");
5287 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5292 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5294 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5297 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5303 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5308 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5310 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5313 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5319 get_new_imt_trampoline_from_page (gpointer arg)
5324 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5326 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5328 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5334 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5339 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5341 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5344 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5348 /* Return a given kind of trampoline */
5349 /* FIXME set unwind info for these trampolines */
5351 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5354 MonoAotModule *amodule = get_mscorlib_aot_module ();
5355 int index, tramp_size;
5357 /* Currently, we keep all trampolines in the mscorlib AOT image */
5358 image = mono_defaults.corlib;
5360 *out_amodule = amodule;
5365 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5367 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5369 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5370 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5371 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5373 index = amodule->trampoline_index [tramp_type] ++;
5377 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5379 tramp_size = amodule->info.trampoline_size [tramp_type];
5382 *out_tramp_size = tramp_size;
5384 return amodule->trampolines [tramp_type] + (index * tramp_size);
5388 no_specific_trampoline (void)
5390 g_assert_not_reached ();
5394 * Return a specific trampoline from the AOT file.
5397 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5399 MonoAotModule *amodule;
5400 guint32 got_offset, tramp_size;
5401 guint8 *code, *tramp;
5402 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5403 static gboolean inited;
5404 static guint32 num_trampolines;
5406 if (mono_llvm_only) {
5408 return no_specific_trampoline;
5415 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5424 if (!generic_trampolines [tramp_type]) {
5427 symbol = mono_get_generic_trampoline_name (tramp_type);
5428 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5432 tramp = (guint8 *)generic_trampolines [tramp_type];
5435 if (USE_PAGE_TRAMPOLINES) {
5436 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5439 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5441 amodule->got [got_offset] = tramp;
5442 amodule->got [got_offset + 1] = arg1;
5446 *code_len = tramp_size;
5452 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5454 MonoAotModule *amodule;
5458 if (USE_PAGE_TRAMPOLINES) {
5459 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5461 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5463 amodule->got [got_offset] = ctx;
5464 amodule->got [got_offset + 1] = addr;
5467 /* The caller expects an ftnptr */
5468 return mono_create_ftnptr (mono_domain_get (), code);
5472 mono_aot_get_unbox_trampoline (MonoMethod *method)
5474 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5475 MonoAotModule *amodule;
5477 guint32 *ut, *ut_end, *entry;
5478 int low, high, entry_index = 0;
5479 gpointer symbol_addr;
5480 MonoTrampInfo *tinfo;
5482 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5483 method_index = find_aot_method (method, &amodule);
5484 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5485 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5486 method_index = find_aot_method (shared, &amodule);
5488 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5489 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5490 method_index = find_aot_method (shared, &amodule);
5492 g_assert (method_index != 0xffffff);
5494 amodule = (MonoAotModule *)method->klass->image->aot_module;
5498 if (amodule->info.llvm_get_unbox_tramp) {
5499 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5500 code = get_tramp (method_index);
5506 ut = amodule->unbox_trampolines;
5507 ut_end = amodule->unbox_trampolines_end;
5509 /* Do a binary search in the sorted table */
5512 high = (ut_end - ut);
5513 while (low < high) {
5514 entry_index = (low + high) / 2;
5515 entry = &ut [entry_index];
5516 if (entry [0] < method_index) {
5517 low = entry_index + 1;
5518 } else if (entry [0] > method_index) {
5525 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5528 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5530 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5532 mono_tramp_info_free (tinfo);
5536 tinfo->code_size = *(guint32*)symbol_addr;
5537 mono_tramp_info_register (tinfo, NULL);
5539 /* The caller expects an ftnptr */
5540 return mono_create_ftnptr (mono_domain_get (), code);
5544 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5548 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5549 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5550 static int count = 0;
5553 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5554 static gpointer addr;
5558 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5561 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5562 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5563 info [0] = GUINT_TO_POINTER (slot);
5564 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5565 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5566 return mono_create_ftnptr (mono_domain_get (), code);
5569 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5570 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5572 /* The caller expects an ftnptr */
5573 return mono_create_ftnptr (mono_domain_get (), code);
5579 g_assert_not_reached ();
5583 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5588 int i, index, real_count;
5589 MonoAotModule *amodule;
5592 return no_imt_thunk;
5595 for (i = 0; i < count; ++i) {
5596 MonoIMTCheckItem *item = imt_entries [i];
5598 if (item->is_equals)
5602 /* Save the entries into an array */
5603 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5605 for (i = 0; i < count; ++i) {
5606 MonoIMTCheckItem *item = imt_entries [i];
5608 if (!item->is_equals)
5611 g_assert (item->key);
5613 buf [(index * 2)] = item->key;
5614 if (item->has_target_code) {
5615 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5616 *p = item->value.target_code;
5617 buf [(index * 2) + 1] = p;
5619 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5623 buf [(index * 2)] = NULL;
5624 buf [(index * 2) + 1] = fail_tramp;
5626 if (USE_PAGE_TRAMPOLINES) {
5627 code = get_new_imt_trampoline_from_page (buf);
5629 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5631 amodule->got [got_offset] = buf;
5638 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5640 MonoAotModule *amodule;
5644 if (USE_PAGE_TRAMPOLINES) {
5645 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5647 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5649 amodule->got [got_offset] = arg;
5650 amodule->got [got_offset + 1] = addr;
5653 /* The caller expects an ftnptr */
5654 return mono_create_ftnptr (mono_domain_get (), code);
5658 * mono_aot_set_make_unreadable:
5660 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5661 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5664 mono_aot_set_make_unreadable (gboolean unreadable)
5668 make_unreadable = unreadable;
5670 if (make_unreadable && !inited) {
5671 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5676 MonoAotModule *module;
5681 find_map (gpointer key, gpointer value, gpointer user_data)
5683 MonoAotModule *module = (MonoAotModule*)value;
5684 FindMapUserData *data = (FindMapUserData*)user_data;
5687 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5688 data->module = module;
5691 static MonoAotModule*
5692 find_module_for_addr (void *ptr)
5694 FindMapUserData data;
5696 if (!make_unreadable)
5700 data.ptr = (guint8*)ptr;
5703 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5710 * mono_aot_is_pagefault:
5712 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5713 * within memory allocated by this module.
5716 mono_aot_is_pagefault (void *ptr)
5718 if (!make_unreadable)
5722 * Not signal safe, but SIGSEGV's are synchronous, and
5723 * this is only turned on by a MONO_DEBUG option.
5725 return find_module_for_addr (ptr) != NULL;
5729 * mono_aot_handle_pagefault:
5731 * Handle a pagefault caused by an unreadable page by making it readable again.
5734 mono_aot_handle_pagefault (void *ptr)
5736 #ifndef PLATFORM_WIN32
5737 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5741 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5742 g_assert (res == 0);
5753 mono_aot_init (void)
5758 mono_aot_cleanup (void)
5763 mono_aot_find_method_index (MonoMethod *method)
5765 g_assert_not_reached ();
5770 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5775 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5780 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5785 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5790 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5796 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5802 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5808 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5814 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5820 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5826 mono_aot_get_plt_entry (guint8 *code)
5832 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5838 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5843 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5849 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5851 g_assert_not_reached ();
5857 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5859 g_assert_not_reached ();
5864 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5866 g_assert_not_reached ();
5871 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5873 g_assert_not_reached ();
5878 mono_aot_get_trampoline (const char *name)
5880 g_assert_not_reached ();
5885 mono_aot_get_unbox_trampoline (MonoMethod *method)
5887 g_assert_not_reached ();
5892 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5894 g_assert_not_reached ();
5899 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5901 g_assert_not_reached ();
5906 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5908 g_assert_not_reached ();
5913 mono_aot_set_make_unreadable (gboolean unreadable)
5918 mono_aot_is_pagefault (void *ptr)
5924 mono_aot_handle_pagefault (void *ptr)
5929 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5931 g_assert_not_reached ();
5936 mono_aot_register_jit_icall (const char *name, gpointer addr)