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-internal.h>
51 #include <mono/metadata/monitor.h>
52 #include <mono/metadata/threads-types.h>
53 #include <mono/metadata/mono-endian.h>
54 #include <mono/utils/mono-logger-internal.h>
55 #include <mono/utils/mono-mmap.h>
56 #include "mono/utils/mono-compiler.h"
57 #include <mono/utils/mono-counters.h>
58 #include <mono/utils/mono-digest.h>
66 #define ENABLE_AOT_CACHE
70 #define SHARED_EXT ".dll"
71 #elif ((defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)) && !defined(__linux__)
72 #define SHARED_EXT ".dylib"
73 #elif defined(__APPLE__) && defined(TARGET_X86) && !defined(__native_client_codegen__)
74 #define SHARED_EXT ".dylib"
76 #define SHARED_EXT ".so"
79 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
80 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
81 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
88 typedef struct MonoAotModule {
90 /* Pointer to the Global Offset Table */
92 GHashTable *name_cache;
93 GHashTable *extra_methods;
94 /* Maps methods to their code */
95 GHashTable *method_to_code;
96 /* Maps pointers into the method info to the methods themselves */
97 GHashTable *method_ref_to_method;
98 MonoAssemblyName *image_names;
100 MonoAssembly *assembly;
101 MonoImage **image_table;
102 guint32 image_table_len;
103 gboolean out_of_date;
112 gint32 *code_offsets;
113 gpointer *method_addresses;
114 /* This contains <offset, index> pairs sorted by offset */
115 /* This is needed because LLVM emitted methods can be in any order */
116 gint32 *sorted_code_offsets;
117 gint32 sorted_code_offsets_len;
118 guint32 *method_info_offsets;
119 guint32 *got_info_offsets;
120 guint32 *ex_info_offsets;
121 guint32 *class_info_offsets;
122 guint32 *methods_loaded;
123 guint16 *class_name_table;
124 guint32 *extra_method_table;
125 guint32 *extra_method_info_offsets;
126 guint32 *unbox_trampolines;
127 guint32 *unbox_trampolines_end;
131 /* Points to the mono EH data created by LLVM */
132 guint8 *mono_eh_frame;
134 /* Points to the trampolines */
135 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
136 /* The first unused trampoline of each kind */
137 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
139 gboolean use_page_trampolines;
141 MonoAotFileInfo info;
146 JitInfoMap *async_jit_info_table;
152 unsigned char *trampolines;
153 unsigned char *trampolines_end;
156 static GHashTable *aot_modules;
157 #define mono_aot_lock() mono_mutex_lock (&aot_mutex)
158 #define mono_aot_unlock() mono_mutex_unlock (&aot_mutex)
159 static mono_mutex_t aot_mutex;
162 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
163 * AOT modules registered by mono_aot_register_module ().
165 static GHashTable *static_aot_modules;
168 * Maps MonoJitInfo* to the aot module they belong to, this can be different
169 * from ji->method->klass->image's aot module for generic instances.
171 static GHashTable *ji_to_amodule;
174 * Whenever to AOT compile loaded assemblies on demand and store them in
177 static gboolean enable_aot_cache = FALSE;
179 static gboolean mscorlib_aot_loaded;
182 static gint32 mono_last_aot_method = -1;
184 static gboolean make_unreadable = FALSE;
185 static guint32 name_table_accesses = 0;
186 static guint32 n_pagefaults = 0;
188 /* Used to speed-up find_aot_module () */
189 static gsize aot_code_low_addr = (gssize)-1;
190 static gsize aot_code_high_addr = 0;
193 static gint32 async_jit_info_size;
195 static GHashTable *aot_jit_icall_hash;
198 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
200 #define USE_PAGE_TRAMPOLINES 0
203 #define mono_aot_page_lock() mono_mutex_lock (&aot_page_mutex)
204 #define mono_aot_page_unlock() mono_mutex_unlock (&aot_page_mutex)
205 static mono_mutex_t aot_page_mutex;
208 init_plt (MonoAotModule *info);
210 /*****************************************************/
212 /*****************************************************/
215 amodule_lock (MonoAotModule *amodule)
217 mono_mutex_lock (&amodule->mutex);
221 amodule_unlock (MonoAotModule *amodule)
223 mono_mutex_unlock (&amodule->mutex);
229 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
230 * found, and sets the loader error if SET_ERROR is TRUE.
233 load_image (MonoAotModule *amodule, int index, gboolean set_error)
235 MonoAssembly *assembly;
236 MonoImageOpenStatus status;
238 g_assert (index < amodule->image_table_len);
240 if (amodule->image_table [index])
241 return amodule->image_table [index];
242 if (amodule->out_of_date)
245 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
247 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);
248 amodule->out_of_date = TRUE;
251 char *full_name = mono_stringify_assembly_name (&amodule->image_names [index]);
252 mono_loader_set_error_assembly_load (full_name, FALSE);
258 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
259 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);
260 amodule->out_of_date = TRUE;
264 amodule->image_table [index] = assembly->image;
265 return assembly->image;
269 decode_value (guint8 *ptr, guint8 **rptr)
274 if ((b & 0x80) == 0){
277 } else if ((b & 0x40) == 0){
278 len = ((b & 0x3f) << 8 | ptr [1]);
280 } else if (b != 0xff) {
281 len = ((b & 0x1f) << 24) |
288 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
294 //printf ("DECODE: %d.\n", len);
299 * mono_aot_get_offset:
301 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
305 mono_aot_get_offset (guint32 *table, int index)
307 int i, group, ngroups, index_entry_size;
308 int start_offset, offset, noffsets, group_size;
309 guint8 *data_start, *p;
310 guint32 *index32 = NULL;
311 guint16 *index16 = NULL;
313 noffsets = table [0];
314 group_size = table [1];
316 index_entry_size = table [3];
317 group = index / group_size;
319 if (index_entry_size == 2) {
320 index16 = (guint16*)&table [4];
321 data_start = (guint8*)&index16 [ngroups];
322 p = data_start + index16 [group];
324 index32 = (guint32*)&table [4];
325 data_start = (guint8*)&index32 [ngroups];
326 p = data_start + index32 [group];
329 /* offset will contain the value of offsets [group * group_size] */
330 offset = start_offset = decode_value (p, &p);
331 for (i = group * group_size + 1; i <= index; ++i) {
332 offset += decode_value (p, &p);
335 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
341 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
344 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
347 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
349 static MonoGenericInst*
350 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
353 MonoType **type_argv;
354 MonoGenericInst *inst;
357 type_argc = decode_value (p, &p);
358 type_argv = g_new0 (MonoType*, type_argc);
360 for (i = 0; i < type_argc; ++i) {
361 MonoClass *pclass = decode_klass_ref (module, p, &p);
366 type_argv [i] = &pclass->byval_arg;
369 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
378 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
385 argc = decode_value (p, &p);
388 ctx->class_inst = decode_generic_inst (module, p, &p);
389 if (!ctx->class_inst)
393 argc = decode_value (p, &p);
396 ctx->method_inst = decode_generic_inst (module, p, &p);
397 if (!ctx->method_inst)
406 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
410 MonoClass *klass = NULL, *eklass;
411 guint32 token, rank, idx;
415 reftype = decode_value (p, &p);
422 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
423 idx = decode_value (p, &p);
424 image = load_image (module, 0, TRUE);
427 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
428 g_assert (mono_error_ok (&error));
430 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
431 idx = decode_value (p, &p);
432 image = load_image (module, decode_value (p, &p), TRUE);
435 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
436 g_assert (mono_error_ok (&error));
438 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
439 token = decode_value (p, &p);
440 image = module->assembly->image;
443 klass = mono_class_get_checked (image, token, &error);
444 g_assert (mono_error_ok (&error));
446 case MONO_AOT_TYPEREF_GINST: {
448 MonoGenericContext ctx;
451 gclass = decode_klass_ref (module, p, &p);
454 g_assert (gclass->generic_container);
456 memset (&ctx, 0, sizeof (ctx));
457 ctx.class_inst = decode_generic_inst (module, p, &p);
460 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
461 klass = mono_class_from_mono_type (type);
462 mono_metadata_free_type (type);
465 case MONO_AOT_TYPEREF_VAR: {
467 MonoGenericContainer *container = NULL;
468 int type = decode_value (p, &p);
469 int num = decode_value (p, &p);
470 gboolean has_container = decode_value (p, &p);
474 gboolean is_method = decode_value (p, &p);
477 MonoMethod *method_def;
478 g_assert (type == MONO_TYPE_MVAR);
479 method_def = decode_resolve_method_ref (module, p, &p);
483 container = mono_method_get_generic_container (method_def);
485 MonoClass *class_def;
486 g_assert (type == MONO_TYPE_VAR);
487 class_def = decode_klass_ref (module, p, &p);
491 container = class_def->generic_container;
494 serial = decode_value (p, &p);
497 t = g_new0 (MonoType, 1);
500 t->data.generic_param = mono_generic_container_get_param (container, num);
501 g_assert (serial == 0);
504 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
506 par->serial = serial;
508 par->image = mono_defaults.corlib;
509 t->data.generic_param = par;
512 // FIXME: Maybe use types directly to avoid
513 // the overhead of creating MonoClass-es
514 klass = mono_class_from_mono_type (t);
519 case MONO_AOT_TYPEREF_ARRAY:
521 rank = decode_value (p, &p);
522 eklass = decode_klass_ref (module, p, &p);
523 klass = mono_array_class_get (eklass, rank);
525 case MONO_AOT_TYPEREF_PTR: {
528 t = decode_type (module, p, &p);
531 klass = mono_class_from_mono_type (t);
535 case MONO_AOT_TYPEREF_BLOB_INDEX: {
536 guint32 offset = decode_value (p, &p);
539 p2 = module->blob + offset;
540 klass = decode_klass_ref (module, p2, &p2);
544 g_assert_not_reached ();
547 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
552 static MonoClassField*
553 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
555 MonoClass *klass = decode_klass_ref (module, buf, &buf);
562 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
566 return mono_class_get_field (klass, token);
570 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
574 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
579 t = g_malloc0 (sizeof (MonoType));
582 if (*p == MONO_TYPE_PINNED) {
585 } else if (*p == MONO_TYPE_BYREF) {
598 case MONO_TYPE_BOOLEAN:
612 case MONO_TYPE_STRING:
613 case MONO_TYPE_OBJECT:
614 case MONO_TYPE_TYPEDBYREF:
616 case MONO_TYPE_VALUETYPE:
617 case MONO_TYPE_CLASS:
618 t->data.klass = decode_klass_ref (module, p, &p);
620 case MONO_TYPE_SZARRAY:
621 t->data.klass = decode_klass_ref (module, p, &p);
627 t->data.type = decode_type (module, p, &p);
629 case MONO_TYPE_GENERICINST: {
631 MonoGenericContext ctx;
635 gclass = decode_klass_ref (module, p, &p);
638 g_assert (gclass->generic_container);
640 memset (&ctx, 0, sizeof (ctx));
641 ctx.class_inst = decode_generic_inst (module, p, &p);
644 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
645 klass = mono_class_from_mono_type (type);
646 t->data.generic_class = klass->generic_class;
649 case MONO_TYPE_ARRAY: {
650 MonoArrayType *array;
653 // FIXME: memory management
654 array = g_new0 (MonoArrayType, 1);
655 array->eklass = decode_klass_ref (module, p, &p);
658 array->rank = decode_value (p, &p);
659 array->numsizes = decode_value (p, &p);
662 array->sizes = g_malloc0 (sizeof (int) * array->numsizes);
663 for (i = 0; i < array->numsizes; ++i)
664 array->sizes [i] = decode_value (p, &p);
666 array->numlobounds = decode_value (p, &p);
667 if (array->numlobounds)
668 array->lobounds = g_malloc0 (sizeof (int) * array->numlobounds);
669 for (i = 0; i < array->numlobounds; ++i)
670 array->lobounds [i] = decode_value (p, &p);
671 t->data.array = array;
675 case MONO_TYPE_MVAR: {
676 MonoClass *klass = decode_klass_ref (module, p, &p);
679 t->data.generic_param = klass->byval_arg.data.generic_param;
683 g_assert_not_reached ();
691 // FIXME: Error handling, memory management
693 static MonoMethodSignature*
694 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
696 MonoMethodSignature *sig;
698 int i, param_count, call_conv, gen_param_count = 0;
700 gboolean hasthis, explicit_this, has_gen_params;
704 has_gen_params = (flags & 0x10) != 0;
705 hasthis = (flags & 0x20) != 0;
706 explicit_this = (flags & 0x40) != 0;
707 call_conv = flags & 0x0F;
710 gen_param_count = decode_value (p, &p);
711 param_count = decode_value (p, &p);
712 if (target && param_count != target->param_count)
714 sig = g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
715 sig->param_count = param_count;
716 sig->sentinelpos = -1;
717 sig->hasthis = hasthis;
718 sig->explicit_this = explicit_this;
719 sig->call_convention = call_conv;
720 sig->param_count = param_count;
721 sig->ret = decode_type (module, p, &p);
722 for (i = 0; i < param_count; ++i) {
723 if (*p == MONO_TYPE_SENTINEL) {
724 g_assert (sig->call_convention == MONO_CALL_VARARG);
725 sig->sentinelpos = i;
728 sig->params [i] = decode_type (module, p, &p);
731 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
732 sig->sentinelpos = sig->param_count;
739 static MonoMethodSignature*
740 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
742 return decode_signature_with_target (module, NULL, buf, endbuf);
746 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
748 MonoMethodSignature *sig;
752 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
753 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
759 /* Stores information returned by decode_method_ref () */
764 gboolean no_aot_trampoline;
768 * decode_method_ref_with_target:
770 * Decode a method reference, storing the image/token into a MethodRef structure.
771 * This avoids loading metadata for the method if the caller does not need it. If the method has
772 * no token, then it is loaded from metadata and ref->method is set to the method instance.
773 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
774 * couldn't resolve to TARGET, and return FALSE.
775 * There are some kinds of method references which only support a non-null TARGET.
776 * This means that its not possible to decode this into a method, only to check
777 * that the method reference matches a given method. This is normally not a problem
778 * as these wrappers only occur in the extra_methods table, where we already have
779 * a method we want to lookup.
782 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
784 guint32 image_index, value;
785 MonoImage *image = NULL;
788 memset (ref, 0, sizeof (MethodRef));
790 value = decode_value (p, &p);
791 image_index = value >> 24;
793 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
794 ref->no_aot_trampoline = TRUE;
795 value = decode_value (p, &p);
796 image_index = value >> 24;
799 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
800 if (target && target->wrapper_type)
804 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
805 guint32 wrapper_type;
807 wrapper_type = decode_value (p, &p);
809 if (target && target->wrapper_type != wrapper_type)
813 image = mono_defaults.corlib;
815 switch (wrapper_type) {
816 #ifndef DISABLE_REMOTING
817 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
818 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
822 mono_class_init (m->klass);
823 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
826 case MONO_WRAPPER_PROXY_ISINST: {
827 MonoClass *klass = decode_klass_ref (module, p, &p);
830 ref->method = mono_marshal_get_proxy_cancast (klass);
833 case MONO_WRAPPER_LDFLD:
834 case MONO_WRAPPER_LDFLDA:
835 case MONO_WRAPPER_STFLD:
836 case MONO_WRAPPER_ISINST: {
837 MonoClass *klass = decode_klass_ref (module, p, &p);
840 if (wrapper_type == MONO_WRAPPER_LDFLD)
841 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
842 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
843 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
844 else if (wrapper_type == MONO_WRAPPER_STFLD)
845 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
846 else if (wrapper_type == MONO_WRAPPER_ISINST)
847 ref->method = mono_marshal_get_isinst (klass);
849 g_assert_not_reached ();
852 case MONO_WRAPPER_LDFLD_REMOTE:
853 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
855 case MONO_WRAPPER_STFLD_REMOTE:
856 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
859 case MONO_WRAPPER_ALLOC: {
860 int atype = decode_value (p, &p);
862 ref->method = mono_gc_get_managed_allocator_by_type (atype);
863 g_assert (ref->method);
866 case MONO_WRAPPER_WRITE_BARRIER:
867 ref->method = mono_gc_get_write_barrier ();
869 case MONO_WRAPPER_STELEMREF: {
870 int subtype = decode_value (p, &p);
872 if (subtype == WRAPPER_SUBTYPE_NONE) {
873 ref->method = mono_marshal_get_stelemref ();
874 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
878 kind = decode_value (p, &p);
880 /* Can't decode this */
883 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
884 info = mono_marshal_get_wrapper_info (target);
887 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
888 ref->method = target;
895 g_assert_not_reached ();
899 case MONO_WRAPPER_SYNCHRONIZED: {
900 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
904 ref->method = mono_marshal_get_synchronized_wrapper (m);
907 case MONO_WRAPPER_UNKNOWN: {
908 MonoMethodDesc *desc;
909 MonoMethod *orig_method;
910 int subtype = decode_value (p, &p);
912 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
913 MonoClass *klass = decode_klass_ref (module, p, &p);
920 if (klass != target->klass)
923 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
924 if (strcmp (target->name, "PtrToStructure"))
926 ref->method = mono_marshal_get_ptr_to_struct (klass);
928 if (strcmp (target->name, "StructureToPtr"))
930 ref->method = mono_marshal_get_struct_to_ptr (klass);
932 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
933 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
937 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
938 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
939 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
943 ref->method = mono_marshal_get_array_accessor_wrapper (m);
944 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
945 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
946 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
947 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
949 if (subtype == WRAPPER_SUBTYPE_FAST_MONITOR_ENTER)
950 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
951 else if (subtype == WRAPPER_SUBTYPE_FAST_MONITOR_EXIT)
952 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
953 else if (subtype == WRAPPER_SUBTYPE_FAST_MONITOR_ENTER_V4)
954 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
956 g_assert_not_reached ();
957 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
958 g_assert (orig_method);
959 mono_method_desc_free (desc);
960 ref->method = mono_monitor_get_fast_path (orig_method);
964 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
965 int subtype = decode_value (p, &p);
967 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
968 int rank = decode_value (p, &p);
969 int elem_size = decode_value (p, &p);
971 ref->method = mono_marshal_get_array_address (rank, elem_size);
972 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
976 m = decode_resolve_method_ref (module, p, &p);
982 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
984 info = mono_marshal_get_wrapper_info (target);
985 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
986 ref->method = target;
992 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
994 int subtype = decode_value (p, &p);
997 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1002 if (strcmp (target->name, name) != 0)
1004 ref->method = target;
1006 m = decode_resolve_method_ref (module, p, &p);
1011 /* This should only happen when looking for an extra method */
1014 if (mono_marshal_method_from_wrapper (target) == m)
1015 ref->method = target;
1021 case MONO_WRAPPER_CASTCLASS: {
1022 int subtype = decode_value (p, &p);
1024 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1025 ref->method = mono_marshal_get_castclass_with_cache ();
1026 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1027 ref->method = mono_marshal_get_isinst_with_cache ();
1029 g_assert_not_reached ();
1032 case MONO_WRAPPER_RUNTIME_INVOKE: {
1033 int subtype = decode_value (p, &p);
1038 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1039 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1041 ref->method = target;
1042 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1043 /* Direct wrapper */
1044 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1048 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1049 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1050 /* Virtual direct wrapper */
1051 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1055 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1057 MonoMethodSignature *sig;
1060 sig = decode_signature_with_target (module, NULL, p, &p);
1061 info = mono_marshal_get_wrapper_info (target);
1064 if (info->subtype != subtype)
1066 g_assert (info->d.runtime_invoke.sig);
1067 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1068 ref->method = target;
1074 case MONO_WRAPPER_DELEGATE_INVOKE:
1075 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1076 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1077 gboolean is_inflated = decode_value (p, &p);
1078 WrapperSubtype subtype;
1082 MonoMethod *invoke, *wrapper;
1084 klass = decode_klass_ref (module, p, &p);
1088 switch (wrapper_type) {
1089 case MONO_WRAPPER_DELEGATE_INVOKE:
1090 invoke = mono_get_delegate_invoke (klass);
1091 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1093 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1094 invoke = mono_get_delegate_begin_invoke (klass);
1095 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1097 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1098 invoke = mono_get_delegate_end_invoke (klass);
1099 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1102 g_assert_not_reached ();
1105 if (target && wrapper != target)
1107 ref->method = wrapper;
1110 * These wrappers are associated with a signature, not with a method.
1111 * Since we can't decode them into methods, they need a target method.
1116 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1119 subtype = decode_value (p, &p);
1120 info = mono_marshal_get_wrapper_info (target);
1122 if (info->subtype != subtype)
1125 if (subtype != WRAPPER_SUBTYPE_NONE)
1129 if (sig_matches_target (module, target, p, &p))
1130 ref->method = target;
1136 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1140 m = decode_resolve_method_ref (module, p, &p);
1143 klass = decode_klass_ref (module, p, &p);
1146 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1150 g_assert_not_reached ();
1152 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1153 image_index = decode_value (p, &p);
1154 ref->token = decode_value (p, &p);
1156 image = load_image (module, image_index, TRUE);
1159 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1161 MonoGenericContext ctx;
1164 * These methods do not have a token which resolves them, so we
1165 * resolve them immediately.
1167 klass = decode_klass_ref (module, p, &p);
1171 if (target && target->klass != klass)
1174 image_index = decode_value (p, &p);
1175 ref->token = decode_value (p, &p);
1177 image = load_image (module, image_index, TRUE);
1181 ref->method = mono_get_method_full (image, ref->token, NULL, NULL);
1185 memset (&ctx, 0, sizeof (ctx));
1187 if (FALSE && klass->generic_class) {
1188 ctx.class_inst = klass->generic_class->context.class_inst;
1189 ctx.method_inst = NULL;
1191 ref->method = mono_class_inflate_generic_method_full (ref->method, klass, &ctx);
1194 memset (&ctx, 0, sizeof (ctx));
1196 if (!decode_generic_context (module, &ctx, p, &p))
1199 ref->method = mono_class_inflate_generic_method_full (ref->method, klass, &ctx);
1200 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1204 klass = decode_klass_ref (module, p, &p);
1207 method_type = decode_value (p, &p);
1208 switch (method_type) {
1210 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1213 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1216 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1219 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1222 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1225 g_assert_not_reached ();
1228 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1229 image_index = decode_value (p, &p);
1230 value = decode_value (p, &p);
1233 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1235 image = load_image (module, image_index, TRUE);
1248 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1250 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1254 * decode_resolve_method_ref_with_target:
1256 * Similar to decode_method_ref, but resolve and return the method itself.
1259 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1264 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1271 return mono_get_method (ref.image, ref.token, NULL);
1275 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1277 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1280 #ifdef ENABLE_AOT_CACHE
1286 * - Add options for controlling the cache size
1287 * - Handle full cache by deleting old assemblies lru style
1288 * - Maybe add a threshold after an assembly is AOT compiled
1289 * - Add options for enabling this for specific main assemblies
1292 /* The cache directory */
1293 static char *cache_dir;
1295 /* The number of assemblies AOTed in this run */
1296 static int cache_count;
1298 /* Whenever to AOT in-process */
1299 static gboolean in_process;
1302 collect_assemblies (gpointer data, gpointer user_data)
1304 MonoAssembly *ass = data;
1305 GSList **l = user_data;
1307 *l = g_slist_prepend (*l, ass);
1310 #define SHA1_DIGEST_LENGTH 20
1313 * get_aot_config_hash:
1315 * Return a hash for all the version information an AOT module depends on.
1317 static G_GNUC_UNUSED char*
1318 get_aot_config_hash (MonoAssembly *assembly)
1321 GSList *l, *assembly_list = NULL;
1324 guint8 digest [SHA1_DIGEST_LENGTH];
1327 build_info = mono_get_runtime_build_info ();
1329 s = g_string_new (build_info);
1331 mono_assembly_foreach (collect_assemblies, &assembly_list);
1334 * The assembly list includes the current assembly as well, no need
1337 for (l = assembly_list; l; l = l->next) {
1338 MonoAssembly *ass = l->data;
1340 g_string_append (s, "_");
1341 g_string_append (s, ass->aname.name);
1342 g_string_append (s, "_");
1343 g_string_append (s, ass->image->guid);
1346 for (i = 0; i < s->len; ++i) {
1347 if (!isalnum (s->str [i]) && s->str [i] != '-')
1351 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1353 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1354 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1355 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1357 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1359 g_string_free (s, TRUE);
1365 aot_cache_init (void)
1369 enable_aot_cache = TRUE;
1374 * aot_cache_load_module:
1376 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1379 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1381 MonoAotCacheConfig *config;
1383 char *fname, *tmp2, *aot_options, *failure_fname;
1395 if (image_is_dynamic (assembly->image))
1398 /* Check in the list of assemblies enabled for aot caching */
1399 config = mono_get_aot_cache_config ();
1403 MonoDomain *domain = mono_domain_get ();
1404 MonoAssembly *entry_assembly = domain->entry_assembly;
1406 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1407 for (l = config->apps; l; l = l->next) {
1410 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1418 for (l = config->assemblies; l; l = l->next) {
1421 if (!strcmp (assembly->aname.name, n))
1431 home = g_get_home_dir ();
1434 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1435 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1436 g_mkdir_with_parents (cache_dir, 0777);
1440 * The same assembly can be used in multiple configurations, i.e. multiple
1441 * versions of the runtime, with multiple versions of dependent assemblies etc.
1442 * To handle this, we compute a version string containing all this information, hash it,
1443 * and use the hash as a filename suffix.
1445 hash = get_aot_config_hash (assembly);
1447 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, SHARED_EXT);
1448 fname = g_build_filename (cache_dir, tmp2, NULL);
1452 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1453 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1456 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1460 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1462 * Can't AOT this during startup, so we AOT it when called later from
1463 * mono_aot_get_method ().
1467 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1469 /* Only AOT one assembly per run to avoid slowing down execution too much */
1470 if (cache_count > 0)
1474 /* Check for previous failure */
1475 failure_fname = g_strdup_printf ("%s.failure", fname);
1476 failure_file = fopen (failure_fname, "r");
1478 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1479 g_free (failure_fname);
1482 g_free (failure_fname);
1483 fclose (failure_file);
1486 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1489 * We need to invoke the AOT compiler here. There are multiple approaches:
1490 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1491 * its hard to make the new process load the same set of assemblies.
1492 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1494 * - fork a new process and do the work there.
1497 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1498 /* Maybe due this in another thread ? */
1499 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1501 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1502 failure_fname = g_strdup_printf ("%s.failure", fname);
1503 failure_file = fopen (failure_fname, "a+");
1504 fclose (failure_file);
1505 g_free (failure_fname);
1507 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1511 * - Avoid waiting for the aot process to finish ?
1512 * (less overhead, but multiple processes could aot the same assembly at the same time)
1521 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1522 logfile = fopen (logfile_name, "a+");
1523 g_free (logfile_name);
1525 dup2 (fileno (logfile), 1);
1526 dup2 (fileno (logfile), 2);
1528 aot_options = g_strdup_printf ("outfile=%s", fname);
1529 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1537 waitpid (pid, &exit_status, 0);
1538 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1539 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1541 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1545 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1553 aot_cache_init (void)
1558 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1566 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1570 guint16 *table, *entry;
1573 char *symbol = (char*)name;
1576 symbol = g_strdup_printf ("_%s", name);
1579 /* The first entry points to the hash */
1580 table = globals [0];
1583 table_size = table [0];
1586 hash = mono_metadata_str_hash (symbol) % table_size;
1588 entry = &table [hash * 2];
1590 /* Search the hash for the index into the globals table */
1592 while (entry [0] != 0) {
1593 guint32 index = entry [0] - 1;
1594 guint32 next = entry [1];
1596 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1598 if (!strcmp (globals [index * 2], symbol)) {
1599 global_index = index;
1604 entry = &table [next * 2];
1610 if (global_index != -1)
1611 *value = globals [global_index * 2 + 1];
1618 char *err = mono_dl_symbol (module, name, value);
1626 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, char **out_msg)
1630 gboolean usable = TRUE;
1633 guint32 excluded_cpu_optimizations;
1635 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1636 msg = g_strdup_printf ("doesn't match assembly");
1640 build_info = mono_get_runtime_build_info ();
1641 if (strlen (info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1642 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1645 g_free (build_info);
1647 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1649 if (mono_aot_only && !full_aot) {
1650 msg = g_strdup_printf ("not compiled with --aot=full");
1653 if (!mono_aot_only && full_aot) {
1654 msg = g_strdup_printf ("compiled with --aot=full");
1658 /* mono_arch_find_imt_method () requires this */
1659 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1660 msg = g_strdup_printf ("compiled against LLVM");
1663 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1664 msg = g_strdup_printf ("not compiled against LLVM");
1668 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1669 msg = g_strdup_printf ("not compiled for debugging");
1673 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1674 if (info->opts & excluded_cpu_optimizations) {
1675 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1679 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1680 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1686 if (info->gc_name_index != -1) {
1687 char *gc_name = (char*)&blob [info->gc_name_index];
1688 const char *current_gc_name = mono_gc_get_gc_name ();
1690 if (strcmp (current_gc_name, gc_name) != 0) {
1691 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1700 /* This returns an interop address */
1702 get_arm_bl_target (guint32 *ins_addr)
1705 guint32 ins = *ins_addr;
1708 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1710 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1711 return (char*)ins_addr + (offset * 2) + 8 + 1;
1713 offset = (((int)ins & 0xffffff) << 8) >> 8;
1714 return (char*)ins_addr + (offset * 4) + 8;
1716 #elif defined(TARGET_ARM64)
1717 return mono_arch_get_call_target (((guint8*)ins_addr) + 4);
1719 g_assert_not_reached ();
1725 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1728 MonoAotModule *amodule;
1730 gboolean usable = TRUE;
1731 char *version_symbol = NULL;
1733 gpointer *globals = NULL;
1734 MonoAotFileInfo *info = NULL;
1737 gboolean do_load_image = TRUE;
1738 int align_double, align_int64;
1740 if (mono_compile_aot)
1743 if (assembly->image->aot_module)
1745 * Already loaded. This can happen because the assembly loading code might invoke
1746 * the assembly load hooks multiple times for the same assembly.
1750 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1753 if (mono_security_cas_enabled ())
1757 if (static_aot_modules)
1758 info = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1766 /* Statically linked AOT module */
1767 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1768 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1769 globals = info->globals;
1771 if (enable_aot_cache)
1772 sofile = aot_cache_load_module (assembly, &aot_name);
1775 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
1777 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1780 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1786 if (!sofile && !globals) {
1787 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows) {
1788 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1796 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1797 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1800 if (version_symbol) {
1801 /* Old file format */
1802 version = atoi (version_symbol);
1805 version = info->version;
1808 if (version != MONO_AOT_FILE_VERSION) {
1809 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
1812 usable = check_usable (assembly, info, &msg);
1816 if (mono_aot_only) {
1817 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
1820 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
1825 mono_dl_close (sofile);
1826 assembly->image->aot_module = NULL;
1830 #if defined (TARGET_ARM) && defined (TARGET_MACH)
1835 memset (&t, 0, sizeof (MonoType));
1836 t.type = MONO_TYPE_R8;
1837 mono_type_size (&t, &align);
1838 align_double = align;
1840 memset (&t, 0, sizeof (MonoType));
1841 t.type = MONO_TYPE_I8;
1842 align_int64 = align;
1845 align_double = MONO_ABI_ALIGNOF (double);
1846 align_int64 = MONO_ABI_ALIGNOF (gint64);
1850 g_assert (info->double_align == align_double);
1851 g_assert (info->long_align == align_int64);
1852 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
1856 amodule = g_new0 (MonoAotModule, 1);
1857 amodule->aot_name = aot_name;
1858 amodule->assembly = assembly;
1860 memcpy (&amodule->info, info, sizeof (*info));
1862 amodule->got = amodule->info.got;
1863 amodule->got [0] = assembly->image;
1864 amodule->globals = globals;
1865 amodule->sofile = sofile;
1866 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
1867 amodule->blob = blob;
1869 mono_mutex_init_recursive (&amodule->mutex);
1871 /* Read image table */
1873 guint32 table_len, i;
1876 table = info->image_table;
1879 table_len = *(guint32*)table;
1880 table += sizeof (guint32);
1881 amodule->image_table = g_new0 (MonoImage*, table_len);
1882 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
1883 amodule->image_guids = g_new0 (char*, table_len);
1884 amodule->image_table_len = table_len;
1885 for (i = 0; i < table_len; ++i) {
1886 MonoAssemblyName *aname = &(amodule->image_names [i]);
1888 aname->name = g_strdup (table);
1889 table += strlen (table) + 1;
1890 amodule->image_guids [i] = g_strdup (table);
1891 table += strlen (table) + 1;
1893 aname->culture = g_strdup (table);
1894 table += strlen (table) + 1;
1895 memcpy (aname->public_key_token, table, strlen (table) + 1);
1896 table += strlen (table) + 1;
1898 table = ALIGN_PTR_TO (table, 8);
1899 aname->flags = *(guint32*)table;
1901 aname->major = *(guint32*)table;
1903 aname->minor = *(guint32*)table;
1905 aname->build = *(guint32*)table;
1907 aname->revision = *(guint32*)table;
1912 amodule->code_offsets = info->code_offsets;
1913 amodule->method_addresses = info->method_addresses;
1914 amodule->code = info->methods;
1916 /* Mask out thumb interop bit */
1917 amodule->code = (void*)((mgreg_t)amodule->code & ~1);
1919 amodule->code_end = info->methods_end;
1920 amodule->method_info_offsets = info->method_info_offsets;
1921 amodule->ex_info_offsets = info->ex_info_offsets;
1922 amodule->class_info_offsets = info->class_info_offsets;
1923 amodule->class_name_table = info->class_name_table;
1924 amodule->extra_method_table = info->extra_method_table;
1925 amodule->extra_method_info_offsets = info->extra_method_info_offsets;
1926 amodule->unbox_trampolines = info->unbox_trampolines;
1927 amodule->unbox_trampolines_end = info->unbox_trampolines_end;
1928 amodule->got_info_offsets = info->got_info_offsets;
1929 amodule->unwind_info = info->unwind_info;
1930 amodule->mem_end = info->mem_end;
1931 amodule->mem_begin = amodule->code;
1932 amodule->plt = info->plt;
1933 amodule->plt_end = info->plt_end;
1934 amodule->mono_eh_frame = info->mono_eh_frame;
1935 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = info->specific_trampolines;
1936 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = info->static_rgctx_trampolines;
1937 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = info->imt_thunks;
1938 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = info->gsharedvt_arg_trampolines;
1939 amodule->thumb_end = info->thumb_end;
1941 if (info->flags & MONO_AOT_FILE_FLAG_DIRECT_METHOD_ADDRESSES) {
1942 /* Compute code_offsets from the method addresses */
1943 amodule->code_offsets = g_malloc0 (amodule->info.nmethods * sizeof (gint32));
1944 for (i = 0; i < amodule->info.nmethods; ++i) {
1945 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
1948 #if defined(TARGET_ARM) || defined(TARGET_ARM64)
1949 addr = get_arm_bl_target ((guint32*)amodule->method_addresses + i);
1950 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1951 addr = mono_arch_get_call_target ((guint8*)amodule->method_addresses + (i * 5) + 5);
1953 g_assert_not_reached ();
1956 if (addr == amodule->method_addresses)
1957 amodule->code_offsets [i] = 0xffffffff;
1959 amodule->code_offsets [i] = (char*)addr - (char*)amodule->code;
1963 if (make_unreadable) {
1964 #ifndef TARGET_WIN32
1966 guint8 *page_start, *page_end;
1969 addr = amodule->mem_begin;
1970 len = amodule->mem_end - amodule->mem_begin;
1972 /* Round down in both directions to avoid modifying data which is not ours */
1973 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
1974 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
1975 if (page_end > page_start) {
1976 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
1977 g_assert (err == 0);
1984 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1985 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1987 g_hash_table_insert (aot_modules, assembly, amodule);
1990 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1992 assembly->image->aot_module = amodule;
1994 if (mono_aot_only) {
1996 find_symbol (amodule->sofile, amodule->globals, "specific_trampolines_page", (gpointer *)&code);
1997 amodule->use_page_trampolines = code != NULL;
1998 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
1999 if (mono_defaults.corlib) {
2000 /* The second got slot contains the mscorlib got addr */
2001 MonoAotModule *mscorlib_amodule = mono_defaults.corlib->aot_module;
2003 amodule->got [1] = mscorlib_amodule->got;
2005 amodule->got [1] = amodule->got;
2009 if (mono_gc_is_moving ()) {
2012 memset (&ji, 0, sizeof (ji));
2013 ji.type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
2015 amodule->got [2] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
2019 * Since we store methoddef and classdef tokens when referring to methods/classes in
2020 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2021 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2022 * non-lazily, since we can't handle out-of-date errors later.
2023 * The cached class info also depends on the exact assemblies.
2025 #if defined(__native_client__)
2026 /* TODO: Don't 'load_image' on mscorlib due to a */
2027 /* recursive loading problem. This should be */
2028 /* removed if mscorlib is loaded from disk. */
2029 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2030 do_load_image = TRUE;
2032 do_load_image = FALSE;
2035 if (do_load_image) {
2036 for (i = 0; i < amodule->image_table_len; ++i)
2037 load_image (amodule, i, FALSE);
2040 if (amodule->out_of_date) {
2041 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);
2042 if (mono_aot_only) {
2043 fprintf (stderr, "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);
2048 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2052 * mono_aot_register_globals:
2054 * This is called by the ctor function in AOT images compiled with the
2055 * 'no-dlsym' option.
2058 mono_aot_register_globals (gpointer *globals)
2060 g_assert_not_reached ();
2064 * mono_aot_register_module:
2066 * This should be called by embedding code to register AOT modules statically linked
2067 * into the executable. AOT_INFO should be the value of the
2068 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2071 mono_aot_register_module (gpointer *aot_info)
2075 MonoAotFileInfo *info = (gpointer)aot_info;
2077 g_assert (info->version == MONO_AOT_FILE_VERSION);
2079 globals = info->globals;
2082 aname = info->assembly_name;
2084 /* This could be called before startup */
2088 if (!static_aot_modules)
2089 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2091 g_hash_table_insert (static_aot_modules, aname, info);
2098 mono_aot_init (void)
2100 mono_mutex_init_recursive (&aot_mutex);
2101 mono_mutex_init_recursive (&aot_page_mutex);
2102 aot_modules = g_hash_table_new (NULL, NULL);
2104 #ifndef __native_client__
2105 mono_install_assembly_load_hook (load_aot_module, NULL);
2107 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2109 if (g_getenv ("MONO_LASTAOT"))
2110 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2115 mono_aot_cleanup (void)
2117 if (aot_jit_icall_hash)
2118 g_hash_table_destroy (aot_jit_icall_hash);
2120 g_hash_table_destroy (aot_modules);
2124 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2130 info->vtable_size = decode_value (buf, &buf);
2131 if (info->vtable_size == -1)
2134 flags = decode_value (buf, &buf);
2135 info->ghcimpl = (flags >> 0) & 0x1;
2136 info->has_finalize = (flags >> 1) & 0x1;
2137 info->has_cctor = (flags >> 2) & 0x1;
2138 info->has_nested_classes = (flags >> 3) & 0x1;
2139 info->blittable = (flags >> 4) & 0x1;
2140 info->has_references = (flags >> 5) & 0x1;
2141 info->has_static_refs = (flags >> 6) & 0x1;
2142 info->no_special_static_fields = (flags >> 7) & 0x1;
2143 info->is_generic_container = (flags >> 8) & 0x1;
2145 if (info->has_cctor) {
2146 res = decode_method_ref (module, &ref, buf, &buf);
2149 info->cctor_token = ref.token;
2151 if (info->has_finalize) {
2152 res = decode_method_ref (module, &ref, buf, &buf);
2155 info->finalize_image = ref.image;
2156 info->finalize_token = ref.token;
2159 info->instance_size = decode_value (buf, &buf);
2160 info->class_size = decode_value (buf, &buf);
2161 info->packing_size = decode_value (buf, &buf);
2162 info->min_align = decode_value (buf, &buf);
2170 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2173 MonoClass *klass = vtable->klass;
2174 MonoAotModule *amodule = klass->image->aot_module;
2176 MonoCachedClassInfo class_info;
2181 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2184 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2187 err = decode_cached_class_info (amodule, &class_info, p, &p);
2191 for (i = 0; i < slot; ++i)
2192 decode_method_ref (amodule, &ref, p, &p);
2194 res = decode_method_ref (amodule, &ref, p, &p);
2197 if (ref.no_aot_trampoline)
2200 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2203 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2207 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2209 MonoAotModule *amodule = klass->image->aot_module;
2213 if (klass->rank || !amodule)
2216 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2218 err = decode_cached_class_info (amodule, res, p, &p);
2226 * mono_aot_get_class_from_name:
2228 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2229 * using a cache stored in the AOT file.
2230 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2232 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2236 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2238 MonoAotModule *amodule = image->aot_module;
2239 guint16 *table, *entry;
2242 char full_name_buf [1024];
2244 const char *name2, *name_space2;
2246 guint32 cols [MONO_TYPEDEF_SIZE];
2247 GHashTable *nspace_table;
2249 if (!amodule || !amodule->class_name_table)
2252 amodule_lock (amodule);
2256 /* First look in the cache */
2257 if (!amodule->name_cache)
2258 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2259 nspace_table = g_hash_table_lookup (amodule->name_cache, name_space);
2261 *klass = g_hash_table_lookup (nspace_table, name);
2263 amodule_unlock (amodule);
2268 table_size = amodule->class_name_table [0];
2269 table = amodule->class_name_table + 1;
2271 if (name_space [0] == '\0')
2272 full_name = g_strdup_printf ("%s", name);
2274 if (strlen (name_space) + strlen (name) < 1000) {
2275 sprintf (full_name_buf, "%s.%s", name_space, name);
2276 full_name = full_name_buf;
2278 full_name = g_strdup_printf ("%s.%s", name_space, name);
2281 hash = mono_metadata_str_hash (full_name) % table_size;
2282 if (full_name != full_name_buf)
2285 entry = &table [hash * 2];
2287 if (entry [0] != 0) {
2288 t = &image->tables [MONO_TABLE_TYPEDEF];
2291 guint32 index = entry [0];
2292 guint32 next = entry [1];
2293 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2295 name_table_accesses ++;
2297 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2299 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2300 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2302 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2304 amodule_unlock (amodule);
2305 *klass = mono_class_get_checked (image, token, &error);
2306 if (!mono_error_ok (&error))
2307 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2311 amodule_lock (amodule);
2312 nspace_table = g_hash_table_lookup (amodule->name_cache, name_space);
2313 if (!nspace_table) {
2314 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2315 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2317 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2318 amodule_unlock (amodule);
2324 entry = &table [next * 2];
2331 amodule_unlock (amodule);
2337 * decode_mono_eh_frame:
2339 * Decode the EH information emitted by our modified LLVM compiler and construct a
2340 * MonoJitInfo structure from it.
2341 * LOCKING: Acquires the domain lock.
2344 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2345 MonoMethod *method, guint8 *code,
2346 MonoJitExceptionInfo *clauses, int num_clauses,
2347 MonoJitInfoFlags flags,
2349 int *this_reg, int *this_offset)
2352 guint8 *fde, *cie, *code_start, *code_end;
2353 int version, fde_count;
2355 int i, j, pos, left, right, offset, offset1, offset2, code_len, func_encoding;
2356 MonoJitExceptionInfo *ei;
2357 guint32 fde_len, ei_len, nested_len, nindex;
2358 gpointer *type_info;
2360 MonoLLVMFDEInfo info;
2362 g_assert (amodule->mono_eh_frame);
2364 p = amodule->mono_eh_frame;
2366 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2370 g_assert (version == 3);
2374 p = ALIGN_PTR_TO (p, 4);
2376 fde_count = *(guint32*)p;
2380 /* There is +1 entry in the table */
2381 cie = p + ((fde_count + 1) * 8);
2383 /* Binary search in the table to find the entry for code */
2384 offset = code - amodule->code;
2388 pos = (left + right) / 2;
2390 /* The table contains method index/fde offset pairs */
2391 g_assert (table [(pos * 2)] != -1);
2392 offset1 = amodule->code_offsets [table [(pos * 2)]];
2393 if (pos + 1 == fde_count) {
2394 offset2 = amodule->code_end - amodule->code;
2396 g_assert (table [(pos + 1) * 2] != -1);
2397 offset2 = amodule->code_offsets [table [(pos + 1) * 2]];
2400 if (offset < offset1)
2402 else if (offset >= offset2)
2408 code_start = amodule->code + amodule->code_offsets [table [(pos * 2)]];
2409 if (pos + 1 == fde_count) {
2410 /* The +1 entry in the table contains the length of the last method */
2411 int len = table [(pos + 1) * 2];
2412 code_end = code_start + len;
2414 code_end = amodule->code + amodule->code_offsets [table [(pos + 1) * 2]];
2416 code_len = code_end - code_start;
2418 g_assert (code >= code_start && code < code_end);
2420 if (amodule->thumb_end && (guint8*)code_start < amodule->thumb_end)
2421 /* Clear thumb flag */
2422 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2424 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2425 /* This won't overflow because there is +1 entry in the table */
2426 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2428 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2430 ei_len = info.ex_info_len;
2431 type_info = info.type_info;
2432 *this_reg = info.this_reg;
2433 *this_offset = info.this_offset;
2435 /* Count number of nested clauses */
2437 for (i = 0; i < ei_len; ++i) {
2438 /* This might be unaligned */
2439 gint32 cindex1 = read32 (type_info [i]);
2442 for (l = nesting [cindex1]; l; l = l->next) {
2443 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2445 for (j = 0; j < ei_len; ++j) {
2446 gint32 cindex2 = read32 (type_info [j]);
2448 if (cindex2 == nesting_cindex)
2455 * LLVM might represent one IL region with multiple regions, so have to
2456 * allocate a new JI.
2459 mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2460 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2462 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2463 /* This signals that unwind_info points to a normal cached unwind info */
2464 jinfo->from_aot = 0;
2465 jinfo->from_llvm = 1;
2467 for (i = 0; i < ei_len; ++i) {
2469 * clauses contains the original IL exception info saved by the AOT
2470 * compiler, we have to combine that with the information produced by LLVM
2472 /* The type_info entries contain IL clause indexes */
2473 int clause_index = read32 (type_info [i]);
2474 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2475 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2477 g_assert (clause_index < num_clauses);
2478 jei->flags = orig_jei->flags;
2479 jei->data.catch_class = orig_jei->data.catch_class;
2481 jei->try_start = ei [i].try_start;
2482 jei->try_end = ei [i].try_end;
2483 jei->handler_start = ei [i].handler_start;
2485 /* Make sure we transition to thumb when a handler starts */
2486 if (amodule->thumb_end && (guint8*)jei->handler_start < amodule->thumb_end)
2487 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2490 /* See exception_cb () in mini-llvm.c as to why this is needed */
2492 for (i = 0; i < ei_len; ++i) {
2493 gint32 cindex1 = read32 (type_info [i]);
2496 for (l = nesting [cindex1]; l; l = l->next) {
2497 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2499 for (j = 0; j < ei_len; ++j) {
2500 gint32 cindex2 = read32 (type_info [j]);
2502 if (cindex2 == nesting_cindex) {
2504 * The try interval comes from the nested clause, everything else from the
2507 memcpy (&jinfo->clauses [nindex], &jinfo->clauses [j], sizeof (MonoJitExceptionInfo));
2508 jinfo->clauses [nindex].try_start = jinfo->clauses [i].try_start;
2509 jinfo->clauses [nindex].try_end = jinfo->clauses [i].try_end;
2515 g_assert (nindex == ei_len + nested_len);
2521 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2525 if (async_context) {
2526 res = mono_domain_alloc0_lock_free (domain, size);
2527 InterlockedExchangeAdd (&async_jit_info_size, size);
2529 res = mono_domain_alloc0 (domain, size);
2535 * LOCKING: Acquires the domain lock.
2536 * In async context, this is async safe.
2539 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2540 MonoMethod *method, guint8* ex_info, guint8 *addr,
2541 guint8 *code, guint32 code_len)
2543 int i, buf_len, num_clauses, len;
2545 MonoJitInfoFlags flags = JIT_INFO_NONE;
2546 guint unwind_info, eflags;
2547 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2548 gboolean from_llvm, has_gc_map;
2550 int generic_info_size, try_holes_info_size, num_holes, arch_eh_jit_info_size;
2551 int this_reg = 0, this_offset = 0;
2554 /* Load the method info from the AOT file */
2555 async = mono_thread_info_is_async_context ();
2558 eflags = decode_value (p, &p);
2559 has_generic_jit_info = (eflags & 1) != 0;
2560 has_dwarf_unwind_info = (eflags & 2) != 0;
2561 has_clauses = (eflags & 4) != 0;
2562 has_seq_points = (eflags & 8) != 0;
2563 from_llvm = (eflags & 16) != 0;
2564 has_try_block_holes = (eflags & 32) != 0;
2565 has_gc_map = (eflags & 64) != 0;
2566 has_arch_eh_jit_info = (eflags & 128) != 0;
2568 if (has_dwarf_unwind_info) {
2569 unwind_info = decode_value (p, &p);
2570 g_assert (unwind_info < (1 << 30));
2572 unwind_info = decode_value (p, &p);
2574 if (has_generic_jit_info) {
2575 flags |= JIT_INFO_HAS_GENERIC_JIT_INFO;
2576 generic_info_size = sizeof (MonoGenericJitInfo);
2578 generic_info_size = 0;
2581 if (has_try_block_holes) {
2582 num_holes = decode_value (p, &p);
2583 flags |= JIT_INFO_HAS_TRY_BLOCK_HOLES;
2584 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2586 num_holes = try_holes_info_size = 0;
2588 /* Exception table */
2590 num_clauses = decode_value (p, &p);
2593 if (has_arch_eh_jit_info) {
2594 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2595 arch_eh_jit_info_size = sizeof (MonoArchEHJitInfo);
2597 arch_eh_jit_info_size = 0;
2601 MonoJitExceptionInfo *clauses;
2608 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2611 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2612 nesting = g_new0 (GSList*, num_clauses);
2614 for (i = 0; i < num_clauses; ++i) {
2615 MonoJitExceptionInfo *ei = &clauses [i];
2617 ei->flags = decode_value (p, &p);
2619 if (decode_value (p, &p))
2620 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2622 /* Read the list of nesting clauses */
2624 int nesting_index = decode_value (p, &p);
2625 if (nesting_index == -1)
2627 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2631 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2634 for (i = 0; i < num_clauses; ++i)
2635 g_slist_free (nesting [i]);
2638 len = mono_jit_info_size (flags, num_clauses, num_holes);
2639 jinfo = alloc0_jit_info_data (domain, len, async);
2640 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2642 for (i = 0; i < jinfo->num_clauses; ++i) {
2643 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2645 ei->flags = decode_value (p, &p);
2647 ei->exvar_offset = decode_value (p, &p);
2649 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2650 ei->data.filter = code + decode_value (p, &p);
2652 int len = decode_value (p, &p);
2658 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2662 ei->try_start = code + decode_value (p, &p);
2663 ei->try_end = code + decode_value (p, &p);
2664 ei->handler_start = code + decode_value (p, &p);
2667 jinfo->unwind_info = unwind_info;
2668 jinfo->domain_neutral = 0;
2669 jinfo->from_aot = 1;
2672 if (has_try_block_holes) {
2673 MonoTryBlockHoleTableJitInfo *table;
2675 g_assert (jinfo->has_try_block_holes);
2677 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2680 table->num_holes = (guint16)num_holes;
2681 for (i = 0; i < num_holes; ++i) {
2682 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2683 hole->clause = decode_value (p, &p);
2684 hole->length = decode_value (p, &p);
2685 hole->offset = decode_value (p, &p);
2689 if (has_arch_eh_jit_info) {
2690 MonoArchEHJitInfo *eh_info;
2692 g_assert (jinfo->has_arch_eh_info);
2694 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
2695 eh_info->stack_size = decode_value (p, &p);
2696 eh_info->epilog_size = decode_value (p, &p);
2700 /* The rest is not needed in async mode */
2701 jinfo->async = TRUE;
2702 jinfo->d.aot_info = amodule;
2707 if (has_generic_jit_info) {
2708 MonoGenericJitInfo *gi;
2711 g_assert (jinfo->has_generic_jit_info);
2713 gi = mono_jit_info_get_generic_jit_info (jinfo);
2716 gi->nlocs = decode_value (p, &p);
2718 gi->locations = alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
2719 for (i = 0; i < gi->nlocs; ++i) {
2720 MonoDwarfLocListEntry *entry = &gi->locations [i];
2722 entry->is_reg = decode_value (p, &p);
2723 entry->reg = decode_value (p, &p);
2725 entry->offset = decode_value (p, &p);
2727 entry->from = decode_value (p, &p);
2728 entry->to = decode_value (p, &p);
2732 gi->has_this = this_reg != -1;
2733 gi->this_reg = this_reg;
2734 gi->this_offset = this_offset;
2736 gi->has_this = decode_value (p, &p);
2737 gi->this_reg = decode_value (p, &p);
2738 gi->this_offset = decode_value (p, &p);
2742 len = decode_value (p, &p);
2746 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
2748 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2749 if (decode_value (p, &p)) {
2752 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
2754 n = decode_value (p, &p);
2756 gsctx->var_is_vt = alloc0_jit_info_data (domain, sizeof (gboolean) * n, async);
2757 for (i = 0; i < n; ++i)
2758 gsctx->var_is_vt [i] = decode_value (p, &p);
2760 n = decode_value (p, &p);
2762 gsctx->mvar_is_vt = alloc0_jit_info_data (domain, sizeof (gboolean) * n, async);
2763 for (i = 0; i < n; ++i)
2764 gsctx->mvar_is_vt [i] = decode_value (p, &p);
2769 if (method && has_seq_points) {
2770 MonoSeqPointInfo *seq_points;
2771 int il_offset, native_offset, last_il_offset, last_native_offset, j;
2773 int len = decode_value (p, &p);
2775 seq_points = g_malloc0 (sizeof (MonoSeqPointInfo) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (SeqPoint));
2776 seq_points->len = len;
2777 last_il_offset = last_native_offset = 0;
2778 for (i = 0; i < len; ++i) {
2779 SeqPoint *sp = &seq_points->seq_points [i];
2780 il_offset = last_il_offset + decode_value (p, &p);
2781 native_offset = last_native_offset + decode_value (p, &p);
2783 sp->il_offset = il_offset;
2784 sp->native_offset = native_offset;
2786 sp->flags = decode_value (p, &p);
2787 sp->next_len = decode_value (p, &p);
2788 sp->next = g_new (int, sp->next_len);
2789 for (j = 0; j < sp->next_len; ++j)
2790 sp->next [j] = decode_value (p, &p);
2792 last_il_offset = il_offset;
2793 last_native_offset = native_offset;
2796 mono_domain_lock (domain);
2797 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
2798 mono_domain_unlock (domain);
2801 /* Load debug info */
2802 buf_len = decode_value (p, &p);
2804 mono_debug_add_aot_method (domain, method, code, p, buf_len);
2808 int map_size = decode_value (p, &p);
2809 /* The GC map requires 4 bytes of alignment */
2810 while ((guint64)(gsize)p % 4)
2816 if (amodule != jinfo->d.method->klass->image->aot_module) {
2819 ji_to_amodule = g_hash_table_new (NULL, NULL);
2820 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
2828 * mono_aot_get_unwind_info:
2830 * Return a pointer to the DWARF unwind info belonging to JI.
2833 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
2835 MonoAotModule *amodule;
2837 guint8 *code = ji->code_start;
2840 amodule = ji->d.aot_info;
2842 amodule = jinfo_get_method (ji)->klass->image->aot_module;
2844 g_assert (ji->from_aot);
2846 if (!(code >= amodule->code && code <= amodule->code_end)) {
2847 /* ji belongs to a different aot module than amodule */
2849 g_assert (ji_to_amodule);
2850 amodule = g_hash_table_lookup (ji_to_amodule, ji);
2852 g_assert (code >= amodule->code && code <= amodule->code_end);
2856 p = amodule->unwind_info + ji->unwind_info;
2857 *unwind_info_len = decode_value (p, &p);
2861 static G_GNUC_UNUSED int
2862 compare_ints (const void *a, const void *b)
2864 return *(gint32*)a - *(gint32*)b;
2868 msort_code_offsets_internal (gint32 *array, int lo, int hi, gint32 *scratch)
2870 int mid = (lo + hi) / 2;
2877 for (i = lo; i < hi; ++i)
2878 if (array [(i * 2)] > array [(i * 2) + 2])
2881 /* Already sorted */
2885 msort_code_offsets_internal (array, lo, mid, scratch);
2886 msort_code_offsets_internal (array, mid + 1, hi, scratch);
2888 if (array [mid * 2] < array [(mid + 1) * 2])
2894 for (i = lo; i <= hi; i ++) {
2895 if (t_lo <= mid && ((t_hi > hi) || array [t_lo * 2] < array [t_hi * 2])) {
2896 scratch [(i * 2)] = array [t_lo * 2];
2897 scratch [(i * 2) + 1] = array [(t_lo *2) + 1];
2900 scratch [(i * 2)] = array [t_hi * 2];
2901 scratch [(i * 2) + 1] = array [(t_hi *2) + 1];
2905 for (i = lo; i <= hi; ++i) {
2906 array [(i * 2)] = scratch [i * 2];
2907 array [(i * 2) + 1] = scratch [(i * 2) + 1];
2912 msort_code_offsets (gint32 *array, int len)
2916 scratch = g_new (gint32, len * 2);
2917 msort_code_offsets_internal (array, 0, len - 1, scratch);
2922 * mono_aot_find_jit_info:
2924 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
2925 * to the jit info tables.
2926 * FIXME: Large sizes in the lock free allocator
2929 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2931 int pos, left, right, offset, offset1, offset2, code_len;
2932 int method_index, table_len;
2934 MonoAotModule *amodule = image->aot_module;
2935 MonoMethod *method = NULL;
2937 guint8 *code, *ex_info, *p;
2940 gint32 *code_offsets;
2947 nmethods = amodule->info.nmethods;
2949 if (domain != mono_get_root_domain ())
2953 async = mono_thread_info_is_async_context ();
2955 offset = (guint8*)addr - amodule->code;
2957 /* Compute a sorted table mapping code offsets to method indexes. */
2958 if (!amodule->sorted_code_offsets) {
2960 code_offsets = g_new0 (gint32, nmethods * 2);
2962 for (i = 0; i < nmethods; ++i) {
2963 /* Skip the -1 entries to speed up sorting */
2964 if (amodule->code_offsets [i] == 0xffffffff)
2966 code_offsets [(offsets_len * 2)] = amodule->code_offsets [i];
2967 code_offsets [(offsets_len *2) + 1] = i;
2970 /* Use a merge sort as this is mostly sorted */
2971 msort_code_offsets (code_offsets, offsets_len);
2972 //qsort (code_offsets, offsets_len, sizeof (gint32) * 2, compare_ints);
2973 for (i = 0; i < offsets_len -1; ++i)
2974 g_assert (code_offsets [(i * 2)] <= code_offsets [(i + 1) * 2]);
2976 amodule->sorted_code_offsets_len = offsets_len;
2977 mono_memory_barrier ();
2978 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_code_offsets, code_offsets, NULL) != NULL)
2979 /* Somebody got in before us */
2980 g_free (code_offsets);
2983 code_offsets = amodule->sorted_code_offsets;
2984 offsets_len = amodule->sorted_code_offsets_len;
2986 if (offsets_len > 0 && (offset < code_offsets [0] || offset >= (amodule->code_end - amodule->code)))
2989 /* Binary search in the sorted_code_offsets table */
2991 right = offsets_len;
2993 pos = (left + right) / 2;
2995 offset1 = code_offsets [(pos * 2)];
2996 if (pos + 1 == offsets_len)
2997 offset2 = amodule->code_end - amodule->code;
2999 offset2 = code_offsets [(pos + 1) * 2];
3001 if (offset < offset1)
3003 else if (offset >= offset2)
3009 g_assert (offset >= code_offsets [(pos * 2)]);
3010 if (pos + 1 < offsets_len)
3011 g_assert (offset < code_offsets [((pos + 1) * 2)]);
3012 method_index = code_offsets [(pos * 2) + 1];
3014 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3016 JitInfoMap *table = amodule->async_jit_info_table;
3020 len = table [0].method_index;
3021 for (i = 1; i < len; ++i) {
3022 if (table [i].method_index == method_index)
3023 return table [i].jinfo;
3028 code = &amodule->code [amodule->code_offsets [method_index]];
3029 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3031 if (pos == offsets_len - 1)
3032 code_len = amodule->code_end - code;
3034 code_len = code_offsets [(pos + 1) * 2] - code_offsets [pos * 2];
3036 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3038 /* Might be a wrapper/extra method */
3040 if (amodule->extra_methods) {
3041 amodule_lock (amodule);
3042 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3043 amodule_unlock (amodule);
3049 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3051 * This is hit for extra methods which are called directly, so they are
3052 * not in amodule->extra_methods.
3054 table_len = amodule->extra_method_info_offsets [0];
3055 table = amodule->extra_method_info_offsets + 1;
3062 pos = ((left + right) / 2);
3064 g_assert (pos < table_len);
3066 if (table [pos * 2] < method_index)
3068 else if (table [pos * 2] > method_index)
3074 p = amodule->blob + table [(pos * 2) + 1];
3075 method = decode_resolve_method_ref (amodule, p, &p);
3077 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3080 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3081 method = mono_get_method (image, token, NULL);
3088 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3090 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, addr, code, code_len);
3092 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3093 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
3095 /* Add it to the normal JitInfo tables */
3097 JitInfoMap *old_table, *new_table;
3101 * Use a simple inmutable table with linear search to cache async jit info entries.
3102 * This assumes that the number of entries is small.
3105 /* Copy the table, adding a new entry at the end */
3106 old_table = amodule->async_jit_info_table;
3108 len = old_table[0].method_index;
3111 new_table = alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3113 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3114 new_table [0].method_index = len + 1;
3115 new_table [len].method_index = method_index;
3116 new_table [len].jinfo = jinfo;
3118 mono_memory_barrier ();
3119 if (InterlockedCompareExchangePointer ((gpointer)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3123 mono_jit_info_table_add (domain, jinfo);
3130 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3138 case MONO_PATCH_INFO_METHOD:
3139 case MONO_PATCH_INFO_METHOD_JUMP:
3140 case MONO_PATCH_INFO_ICALL_ADDR:
3141 case MONO_PATCH_INFO_METHOD_RGCTX:
3142 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3146 res = decode_method_ref (aot_module, &ref, p, &p);
3150 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)) {
3151 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3152 ji->type = MONO_PATCH_INFO_ABS;
3156 ji->data.method = ref.method;
3158 ji->data.method = mono_get_method (ref.image, ref.token, NULL);
3159 g_assert (ji->data.method);
3160 mono_class_init (ji->data.method->klass);
3164 case MONO_PATCH_INFO_INTERNAL_METHOD:
3165 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3166 guint32 len = decode_value (p, &p);
3168 ji->data.name = (char*)p;
3172 case MONO_PATCH_INFO_METHODCONST:
3174 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3175 if (!ji->data.method)
3178 case MONO_PATCH_INFO_VTABLE:
3179 case MONO_PATCH_INFO_CLASS:
3180 case MONO_PATCH_INFO_IID:
3181 case MONO_PATCH_INFO_ADJUSTED_IID:
3182 case MONO_PATCH_INFO_CLASS_INIT:
3184 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3185 if (!ji->data.klass)
3188 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3189 ji->data.del_tramp = mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3190 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p);
3191 if (!ji->data.del_tramp->klass)
3193 if (decode_value (p, &p)) {
3194 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3195 if (!ji->data.del_tramp->method)
3198 ji->data.del_tramp->virtual = decode_value (p, &p) ? TRUE : FALSE;
3200 case MONO_PATCH_INFO_IMAGE:
3201 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
3202 if (!ji->data.image)
3205 case MONO_PATCH_INFO_FIELD:
3206 case MONO_PATCH_INFO_SFLDA:
3208 ji->data.field = decode_field_info (aot_module, p, &p);
3209 if (!ji->data.field)
3212 case MONO_PATCH_INFO_SWITCH:
3213 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3214 ji->data.table->table_size = decode_value (p, &p);
3215 table = mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3216 ji->data.table->table = (MonoBasicBlock**)table;
3217 for (i = 0; i < ji->data.table->table_size; i++)
3218 table [i] = (gpointer)(gssize)decode_value (p, &p);
3220 case MONO_PATCH_INFO_R4: {
3223 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3224 val = decode_value (p, &p);
3225 *(float*)ji->data.target = *(float*)&val;
3228 case MONO_PATCH_INFO_R8: {
3232 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3234 val [0] = decode_value (p, &p);
3235 val [1] = decode_value (p, &p);
3236 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3237 *(double*)ji->data.target = *(double*)&v;
3240 case MONO_PATCH_INFO_LDSTR:
3241 image = load_image (aot_module, decode_value (p, &p), TRUE);
3244 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3246 case MONO_PATCH_INFO_RVA:
3247 case MONO_PATCH_INFO_DECLSEC:
3248 case MONO_PATCH_INFO_LDTOKEN:
3249 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3251 image = load_image (aot_module, decode_value (p, &p), TRUE);
3254 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3256 ji->data.token->has_context = decode_value (p, &p);
3257 if (ji->data.token->has_context) {
3258 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3263 case MONO_PATCH_INFO_EXC_NAME:
3264 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3265 if (!ji->data.klass)
3267 ji->data.name = ji->data.klass->name;
3269 case MONO_PATCH_INFO_METHOD_REL:
3270 ji->data.offset = decode_value (p, &p);
3272 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3273 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3274 case MONO_PATCH_INFO_MONITOR_ENTER:
3275 case MONO_PATCH_INFO_MONITOR_EXIT:
3276 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3277 case MONO_PATCH_INFO_JIT_TLS_ID:
3279 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3280 ji->data.index = decode_value (p, &p);
3282 case MONO_PATCH_INFO_RGCTX_FETCH: {
3284 MonoJumpInfoRgctxEntry *entry;
3285 guint32 offset, val;
3288 offset = decode_value (p, &p);
3289 val = decode_value (p, &p);
3291 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3292 p2 = aot_module->blob + offset;
3293 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3294 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3295 entry->info_type = (val >> 1) & 0xff;
3296 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3297 entry->data->type = (val >> 9) & 0xff;
3299 res = decode_patch (aot_module, mp, entry->data, p, &p);
3302 ji->data.rgctx_entry = entry;
3305 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3307 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE: {
3308 MonoJumpInfoImtTramp *imt_tramp = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoImtTramp));
3310 imt_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3311 imt_tramp->vt_offset = decode_value (p, &p);
3313 ji->data.imt_tramp = imt_tramp;
3316 case MONO_PATCH_INFO_SIGNATURE:
3317 ji->data.target = decode_signature (aot_module, p, &p);
3319 case MONO_PATCH_INFO_TLS_OFFSET:
3320 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3322 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3323 MonoJumpInfoGSharedVtCall *info = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3324 info->sig = decode_signature (aot_module, p, &p);
3325 g_assert (info->sig);
3326 info->method = decode_resolve_method_ref (aot_module, p, &p);
3327 g_assert (info->method);
3329 ji->data.target = info;
3332 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3333 MonoGSharedVtMethodInfo *info = mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3336 info->method = decode_resolve_method_ref (aot_module, p, &p);
3337 g_assert (info->method);
3338 info->num_entries = decode_value (p, &p);
3339 info->count_entries = info->num_entries;
3340 info->entries = mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3341 for (i = 0; i < info->num_entries; ++i) {
3342 MonoRuntimeGenericContextInfoTemplate *template = &info->entries [i];
3344 template->info_type = decode_value (p, &p);
3345 switch (mini_rgctx_info_type_to_patch_info_type (template->info_type)) {
3346 case MONO_PATCH_INFO_CLASS: {
3347 MonoClass *klass = decode_klass_ref (aot_module, p, &p);
3350 template->data = &klass->byval_arg;
3353 case MONO_PATCH_INFO_FIELD:
3354 template->data = decode_field_info (aot_module, p, &p);
3355 if (!template->data)
3359 g_assert_not_reached ();
3363 ji->data.target = info;
3367 g_warning ("unhandled type %d", ji->type);
3368 g_assert_not_reached ();
3379 static MonoJumpInfo*
3380 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
3381 guint32 **got_slots,
3382 guint8 *buf, guint8 **endbuf)
3384 MonoJumpInfo *patches;
3390 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3392 *got_slots = g_malloc (sizeof (guint32) * n_patches);
3394 for (pindex = 0; pindex < n_patches; ++pindex) {
3395 MonoJumpInfo *ji = &patches [pindex];
3400 got_offset = decode_value (p, &p);
3402 if (aot_module->got [got_offset]) {
3403 /* Already loaded */
3404 //printf ("HIT!\n");
3406 shared_p = aot_module->blob + mono_aot_get_offset (aot_module->got_info_offsets, got_offset);
3408 ji->type = decode_value (shared_p, &shared_p);
3410 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
3415 (*got_slots) [pindex] = got_offset;
3422 g_free (*got_slots);
3429 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3432 * Jump addresses cannot be patched by the trampoline code since it
3433 * does not have access to the caller's address. Instead, we collect
3434 * the addresses of the GOT slots pointing to a method, and patch
3435 * them after the method has been compiled.
3437 MonoJitDomainInfo *info = domain_jit_info (domain);
3440 mono_domain_lock (domain);
3441 if (!info->jump_target_got_slot_hash)
3442 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3443 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3444 list = g_slist_prepend (list, got_slot);
3445 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3446 mono_domain_unlock (domain);
3452 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3453 * pointer to the native code of the method, or NULL if not found.
3454 * METHOD might not be set if the caller only has the image/token info.
3457 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3460 gboolean from_plt = method == NULL;
3462 int i, pindex, n_patches, used_strings;
3463 gboolean keep_patches = TRUE;
3465 MonoJitInfo *jinfo = NULL;
3466 guint8 *code, *info;
3468 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3470 /* The caller cannot handle this */
3471 g_assert_not_reached ();
3475 if ((domain != mono_get_root_domain ()) && (!(amodule->info.opts & MONO_OPT_SHARED)))
3476 /* Non shared AOT code can't be used in other appdomains */
3479 if (amodule->out_of_date)
3482 if (amodule->code_offsets [method_index] == 0xffffffff) {
3483 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3487 method = mono_get_method (image, token, NULL);
3488 full_name = mono_method_full_name (method, TRUE);
3489 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3495 code = &amodule->code [amodule->code_offsets [method_index]];
3497 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3499 if (amodule->thumb_end && code < amodule->thumb_end && ((amodule->info.flags & MONO_AOT_FILE_FLAG_DIRECT_METHOD_ADDRESSES) == 0)) {
3500 /* Convert this into a thumb address */
3501 g_assert ((amodule->code_offsets [method_index] & 0x1) == 0);
3502 code = &amodule->code [amodule->code_offsets [method_index] + 1];
3505 if (!amodule->methods_loaded) {
3506 amodule_lock (amodule);
3507 if (!amodule->methods_loaded) {
3510 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3511 mono_memory_barrier ();
3512 amodule->methods_loaded = loaded;
3514 amodule_unlock (amodule);
3517 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3520 if (mono_last_aot_method != -1) {
3521 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3523 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3525 method = mono_get_method (image, token, NULL);
3527 char *name = mono_method_full_name (method, TRUE);
3528 g_print ("LAST AOT METHOD: %s.\n", name);
3531 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3539 klass = method->klass;
3540 decode_klass_ref (amodule, p, &p);
3542 klass = decode_klass_ref (amodule, p, &p);
3545 if (amodule->info.opts & MONO_OPT_SHARED)
3546 used_strings = decode_value (p, &p);
3550 for (i = 0; i < used_strings; i++) {
3551 guint token = decode_value (p, &p);
3552 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (token));
3555 if (amodule->info.opts & MONO_OPT_SHARED)
3556 keep_patches = FALSE;
3558 n_patches = decode_value (p, &p);
3560 keep_patches = FALSE;
3563 MonoJumpInfo *patches;
3569 mp = mono_mempool_new ();
3571 patches = load_patch_info (amodule, mp, n_patches, &got_slots, p, &p);
3572 if (patches == NULL)
3575 for (pindex = 0; pindex < n_patches; ++pindex) {
3576 MonoJumpInfo *ji = &patches [pindex];
3578 if (!amodule->got [got_slots [pindex]]) {
3579 amodule->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
3580 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
3581 amodule->got [got_slots [pindex]] = mono_create_ftnptr (domain, amodule->got [got_slots [pindex]]);
3582 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
3583 register_jump_target_got_slot (domain, ji->data.method, &(amodule->got [got_slots [pindex]]));
3585 ji->type = MONO_PATCH_INFO_NONE;
3591 mono_mempool_destroy (mp);
3594 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
3595 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3597 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3601 method = mono_get_method (image, token, NULL);
3603 full_name = mono_method_full_name (method, TRUE);
3606 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3608 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3612 amodule_lock (amodule);
3614 InterlockedIncrement (&mono_jit_stats.methods_aot);
3616 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3620 if (method && method->wrapper_type)
3621 g_hash_table_insert (amodule->method_to_code, method, code);
3623 amodule_unlock (amodule);
3625 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3629 method = mono_get_method (image, token, NULL);
3632 mono_profiler_method_jit (method);
3633 jinfo = mono_jit_info_table_find (domain, (char*)code);
3635 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3638 if (from_plt && klass && !klass->generic_container)
3639 mono_runtime_class_init (mono_class_vtable (domain, klass));
3644 /* FIXME: The space in domain->mp is wasted */
3645 if (amodule->info.opts & MONO_OPT_SHARED)
3646 /* No need to cache patches */
3647 mono_mempool_destroy (mp);
3656 find_extra_method_in_amodule (MonoAotModule *amodule, MonoMethod *method)
3658 guint32 table_size, entry_size, hash;
3659 guint32 *table, *entry;
3661 static guint32 n_extra_decodes;
3663 if (!amodule || amodule->out_of_date)
3666 table_size = amodule->extra_method_table [0];
3667 table = amodule->extra_method_table + 1;
3670 hash = mono_aot_method_hash (method) % table_size;
3672 entry = &table [hash * entry_size];
3679 guint32 key = entry [0];
3680 guint32 value = entry [1];
3681 guint32 next = entry [entry_size - 1];
3685 p = amodule->blob + key;
3688 amodule_lock (amodule);
3689 if (!amodule->method_ref_to_method)
3690 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
3691 m = g_hash_table_lookup (amodule->method_ref_to_method, p);
3692 amodule_unlock (amodule);
3694 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
3696 amodule_lock (amodule);
3697 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
3698 amodule_unlock (amodule);
3706 /* Special case: wrappers of shared generic methods */
3707 if (m && method->wrapper_type && m->wrapper_type == m->wrapper_type &&
3708 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3709 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
3710 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
3712 if (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2) {
3718 /* Methods decoded needlessly */
3720 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
3725 entry = &table [next * entry_size];
3734 add_module_cb (gpointer key, gpointer value, gpointer user_data)
3736 g_ptr_array_add ((GPtrArray*)user_data, value);
3740 * find_extra_method:
3742 * Try finding METHOD in the extra_method table in all AOT images.
3743 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
3744 * module where the method was found.
3747 find_extra_method (MonoMethod *method, MonoAotModule **out_amodule)
3753 /* Try the method's module first */
3754 *out_amodule = method->klass->image->aot_module;
3755 index = find_extra_method_in_amodule (method->klass->image->aot_module, method);
3756 if (index != 0xffffff)
3760 * Try all other modules.
3761 * This is needed because generic instances klass->image points to the image
3762 * containing the generic definition, but the native code is generated to the
3763 * AOT image which contains the reference.
3766 /* Make a copy to avoid doing the search inside the aot lock */
3767 modules = g_ptr_array_new ();
3769 g_hash_table_foreach (aot_modules, add_module_cb, modules);
3773 for (i = 0; i < modules->len; ++i) {
3774 MonoAotModule *amodule = g_ptr_array_index (modules, i);
3776 if (amodule != method->klass->image->aot_module)
3777 index = find_extra_method_in_amodule (amodule, method);
3778 if (index != 0xffffff) {
3779 *out_amodule = amodule;
3784 g_ptr_array_free (modules, TRUE);
3790 * mono_aot_get_method:
3792 * Return a pointer to the AOTed native code for METHOD if it can be found,
3794 * On platforms with function pointers, this doesn't return a function pointer.
3797 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
3799 MonoClass *klass = method->klass;
3800 guint32 method_index;
3801 MonoAotModule *amodule = klass->image->aot_module;
3804 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
3805 /* This cannot be AOTed during startup, so do it now */
3806 if (!mscorlib_aot_loaded) {
3807 mscorlib_aot_loaded = TRUE;
3808 load_aot_module (klass->image->assembly, NULL);
3809 amodule = klass->image->aot_module;
3816 if (amodule->out_of_date)
3819 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
3820 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3821 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3822 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
3826 * Use the original method instead of its invoke-with-check wrapper.
3827 * This is not a problem when using full-aot, since it doesn't support
3830 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3831 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
3833 g_assert (klass->inited);
3835 /* Find method index */
3836 method_index = 0xffffff;
3837 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
3839 * For generic methods, we store the fully shared instance in place of the
3842 method = mono_method_get_declaring_generic_method (method);
3843 method_index = mono_metadata_token_index (method->token) - 1;
3844 } else if (method->is_inflated || !method->token) {
3845 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
3846 amodule_lock (amodule);
3847 code = g_hash_table_lookup (amodule->method_to_code, method);
3848 amodule_unlock (amodule);
3852 method_index = find_extra_method (method, &amodule);
3854 * Special case the ICollection<T> wrappers for arrays, as they cannot
3855 * be statically enumerated, and each wrapper ends up calling the same
3858 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
3859 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
3861 code = mono_aot_get_method (domain, m);
3867 * Special case Array.GetGenericValueImpl which is a generic icall.
3868 * Generic sharing currently can't handle it, but the icall returns data using
3869 * an out parameter, so the managed-to-native wrappers can share the same code.
3871 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
3873 MonoGenericContext ctx;
3874 MonoType *args [16];
3876 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
3877 /* Avoid recursion */
3880 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
3883 memset (&ctx, 0, sizeof (ctx));
3884 args [0] = &mono_defaults.object_class->byval_arg;
3885 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3887 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE);
3890 * Get the code for the <object> instantiation which should be emitted into
3891 * the mscorlib aot image by the AOT compiler.
3893 code = mono_aot_get_method (domain, m);
3898 /* Same for CompareExchange<T> and Exchange<T> */
3899 /* Same for Volatile.Read<T>/Write<T> */
3900 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
3901 ((!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Interlocked") && (!strcmp (method->name, "CompareExchange") || !strcmp (method->name, "Exchange")) && MONO_TYPE_IS_REFERENCE (mono_method_signature (method)->params [1])) ||
3902 (!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Volatile") && (!strcmp (method->name, "Read") && MONO_TYPE_IS_REFERENCE (mono_method_signature (method)->ret))) ||
3903 (!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Volatile") && (!strcmp (method->name, "Write") && MONO_TYPE_IS_REFERENCE (mono_method_signature (method)->params [1]))))) {
3905 MonoGenericContext ctx;
3906 MonoType *args [16];
3907 gpointer iter = NULL;
3909 while ((m = mono_class_get_methods (method->klass, &iter))) {
3910 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
3915 memset (&ctx, 0, sizeof (ctx));
3916 args [0] = &mono_defaults.object_class->byval_arg;
3917 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3919 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE);
3921 /* Avoid recursion */
3926 * Get the code for the <object> instantiation which should be emitted into
3927 * the mscorlib aot image by the AOT compiler.
3929 code = mono_aot_get_method (domain, m);
3934 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
3935 /* Partial sharing */
3938 shared = mini_get_shared_method (method);
3939 method_index = find_extra_method (shared, &amodule);
3940 if (method_index != 0xffffff)
3944 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
3946 /* Use the all-vt shared method since this is what was AOTed */
3947 method_index = find_extra_method (mini_get_shared_method_full (method, TRUE, TRUE), &amodule);
3948 if (method_index != 0xffffff)
3949 method = mini_get_shared_method_full (method, TRUE, FALSE);
3952 if (method_index == 0xffffff) {
3953 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3956 full_name = mono_method_full_name (method, TRUE);
3957 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
3963 if (method_index == 0xffffff)
3966 /* Needed by find_jit_info */
3967 amodule_lock (amodule);
3968 if (!amodule->extra_methods)
3969 amodule->extra_methods = g_hash_table_new (NULL, NULL);
3970 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
3971 amodule_unlock (amodule);
3974 method_index = mono_metadata_token_index (method->token) - 1;
3977 return load_method (domain, amodule, klass->image, method, method->token, method_index);
3981 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
3985 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
3987 MonoAotModule *aot_module = image->aot_module;
3993 method_index = mono_metadata_token_index (token) - 1;
3995 return load_method (domain, aot_module, image, NULL, token, method_index);
4001 } IsGotEntryUserData;
4004 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4006 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4007 MonoAotModule *aot_module = (MonoAotModule*)value;
4009 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4014 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4016 IsGotEntryUserData user_data;
4021 user_data.addr = addr;
4022 user_data.res = FALSE;
4024 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4027 return user_data.res;
4032 MonoAotModule *module;
4033 } FindAotModuleUserData;
4036 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4038 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4039 MonoAotModule *aot_module = (MonoAotModule*)value;
4041 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
4042 data->module = aot_module;
4045 static inline MonoAotModule*
4046 find_aot_module (guint8 *code)
4048 FindAotModuleUserData user_data;
4053 /* Reading these need no locking */
4054 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4057 user_data.addr = code;
4058 user_data.module = NULL;
4061 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4064 return user_data.module;
4068 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4070 MonoAotModule *amodule;
4073 * Since AOT code is only used in the root domain,
4074 * mono_domain_get () != mono_get_root_domain () means the calling method
4075 * is AppDomain:InvokeInDomain, so this is the same check as in
4076 * mono_method_same_domain () but without loading the metadata for the method.
4078 if (mono_domain_get () == mono_get_root_domain ()) {
4080 amodule = find_aot_module (code);
4084 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4089 * mono_aot_plt_resolve:
4091 * This function is called by the entries in the PLT to resolve the actual method that
4092 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4093 * Returns NULL if the something cannot be loaded.
4096 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
4098 #ifdef MONO_ARCH_AOT_SUPPORTED
4099 guint8 *p, *target, *plt_entry;
4101 MonoAotModule *module = (MonoAotModule*)aot_module;
4102 gboolean res, no_ftnptr = FALSE;
4104 gboolean using_gsharedvt = FALSE;
4106 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4108 p = &module->blob [plt_info_offset];
4110 ji.type = decode_value (p, &p);
4112 mp = mono_mempool_new_size (512);
4113 res = decode_patch (module, mp, &ji, p, &p);
4116 mono_mempool_destroy (mp);
4120 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4121 using_gsharedvt = TRUE;
4125 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4126 * it would create a trampoline, and we don't need that.
4127 * We could do this only if the method does not need the special handling
4128 * in mono_magic_trampoline ().
4130 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) &&
4131 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4132 target = mono_jit_compile_method (ji.data.method);
4135 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
4139 * The trampoline expects us to return a function descriptor on platforms which use
4140 * it, but resolve_patch_target returns a direct function pointer for some type of
4141 * patches, so have to translate between the two.
4142 * FIXME: Clean this up, but how ?
4144 if (ji.type == MONO_PATCH_INFO_ABS || ji.type == MONO_PATCH_INFO_INTERNAL_METHOD || ji.type == MONO_PATCH_INFO_CLASS_INIT || ji.type == MONO_PATCH_INFO_ICALL_ADDR || ji.type == MONO_PATCH_INFO_JIT_ICALL_ADDR || ji.type == MONO_PATCH_INFO_RGCTX_FETCH) {
4145 /* These should already have a function descriptor */
4146 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4147 /* Our function descriptors have a 0 environment, gcc created ones don't */
4148 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4149 g_assert (((gpointer*)target) [2] == 0);
4152 } else if (!no_ftnptr) {
4153 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4154 g_assert (((gpointer*)target) [2] != 0);
4156 target = mono_create_ftnptr (mono_domain_get (), target);
4159 mono_mempool_destroy (mp);
4161 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4162 plt_entry = mono_aot_get_plt_entry (code);
4163 g_assert (plt_entry);
4164 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4168 g_assert_not_reached ();
4176 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4177 * method in the module is loaded to avoid committing memory by writing to it.
4178 * LOCKING: Assumes the AMODULE lock is held.
4181 init_plt (MonoAotModule *amodule)
4186 if (amodule->plt_inited)
4189 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4192 * Initialize the PLT entries in the GOT to point to the default targets.
4195 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4196 for (i = 1; i < amodule->info.plt_size; ++i)
4197 /* All the default entries point to the AOT trampoline */
4198 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4200 amodule->plt_inited = TRUE;
4204 * mono_aot_get_plt_entry:
4206 * Return the address of the PLT entry called by the code at CODE if exists.
4209 mono_aot_get_plt_entry (guint8 *code)
4211 MonoAotModule *amodule = find_aot_module (code);
4212 guint8 *target = NULL;
4218 if (amodule->thumb_end && code < amodule->thumb_end) {
4219 return mono_arm_get_thumb_plt_entry (code);
4223 #ifdef MONO_ARCH_AOT_SUPPORTED
4224 target = mono_arch_get_call_target (code);
4226 g_assert_not_reached ();
4230 while (target != NULL) {
4231 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4234 // Add 4 since mono_arch_get_call_target assumes we're passing
4235 // the instruction after the actual branch instruction.
4236 target = mono_arch_get_call_target (target + 4);
4241 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4249 * mono_aot_get_plt_info_offset:
4251 * Return the PLT info offset belonging to the plt entry called by CODE.
4254 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4256 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4258 g_assert (plt_entry);
4260 /* The offset is embedded inside the code after the plt entry */
4261 #ifdef MONO_ARCH_AOT_SUPPORTED
4262 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4264 g_assert_not_reached ();
4270 mono_create_ftnptr_malloc (guint8 *code)
4272 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4273 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4275 ftnptr->code = code;
4286 * mono_aot_register_jit_icall:
4288 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4289 * be called from mono_arch_init () during startup.
4292 mono_aot_register_jit_icall (const char *name, gpointer addr)
4294 /* No need for locking */
4295 if (!aot_jit_icall_hash)
4296 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4297 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4301 * load_function_full:
4303 * Load the function named NAME from the aot image.
4306 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4310 int n_patches, pindex;
4313 guint32 info_offset;
4317 symbol = g_strdup_printf ("%s", name);
4318 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
4321 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4323 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4327 symbol = g_strdup_printf ("%s_p", name);
4328 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
4331 /* Nothing to patch */
4334 info_offset = *(guint32*)p;
4336 MonoTrampInfo *tinfo;
4337 guint32 code_size, uw_info_len, uw_offset;
4339 /* Construct a MonoTrampInfo from the data in the AOT image */
4341 p += sizeof (guint32);
4342 code_size = *(guint32*)p;
4343 p += sizeof (guint32);
4344 uw_offset = *(guint32*)p;
4345 uw_info = amodule->unwind_info + uw_offset;
4346 uw_info_len = decode_value (uw_info, &uw_info);
4348 tinfo = g_new0 (MonoTrampInfo, 1);
4350 tinfo->code_size = code_size;
4351 tinfo->uw_info = uw_info;
4352 tinfo->uw_info_len = uw_info_len;
4357 p = amodule->blob + info_offset;
4359 /* Similar to mono_aot_load_method () */
4361 n_patches = decode_value (p, &p);
4364 MonoJumpInfo *patches;
4367 mp = mono_mempool_new ();
4369 patches = load_patch_info (amodule, mp, n_patches, &got_slots, p, &p);
4372 for (pindex = 0; pindex < n_patches; ++pindex) {
4373 MonoJumpInfo *ji = &patches [pindex];
4376 if (amodule->got [got_slots [pindex]])
4380 * When this code is executed, the runtime may not be initalized yet, so
4381 * resolve the patch info by hand.
4383 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4384 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4385 target = mono_get_lmf_addr;
4386 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
4387 target = mono_thread_force_interruption_checkpoint;
4388 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
4389 target = mono_exception_from_token;
4390 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
4391 target = mono_get_throw_exception ();
4392 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
4393 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
4394 target = (gpointer)mono_get_trampoline_func (tramp_type2);
4395 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
4396 /* atoll is needed because the the offset is unsigned */
4400 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
4401 g_assert (res == 1);
4402 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4403 target = mono_create_ftnptr_malloc (target);
4404 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_enter")) {
4405 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
4406 target = mono_create_ftnptr_malloc (target);
4407 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_exit")) {
4408 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
4409 target = mono_create_ftnptr_malloc (target);
4410 } else if (!strcmp (ji->data.name, "specific_trampoline_generic_class_init")) {
4411 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), NULL);
4412 target = mono_create_ftnptr_malloc (target);
4413 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
4414 target = mono_thread_get_and_clear_pending_exception;
4415 } else if (strstr (ji->data.name, "generic_trampoline_")) {
4416 target = mono_aot_get_trampoline (ji->data.name);
4417 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
4418 /* Registered by mono_arch_init () */
4419 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
4421 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
4422 g_assert_not_reached ();
4426 /* Hopefully the code doesn't have patches which need method or
4429 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
4433 amodule->got [got_slots [pindex]] = target;
4438 mono_mempool_destroy (mp);
4445 load_function (MonoAotModule *amodule, const char *name)
4447 return load_function_full (amodule, name, NULL);
4451 * Return the trampoline identified by NAME from the mscorlib AOT file.
4452 * On ppc64, this returns a function descriptor.
4455 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
4458 MonoAotModule *amodule;
4460 image = mono_defaults.corlib;
4463 amodule = image->aot_module;
4466 return mono_create_ftnptr_malloc (load_function_full (amodule, name, out_tinfo));
4470 mono_aot_get_trampoline (const char *name)
4472 return mono_aot_get_trampoline_full (name, NULL);
4476 #include <mach/mach.h>
4478 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
4480 static unsigned char*
4481 get_new_trampoline_from_page (int tramp_type)
4483 MonoAotModule *amodule;
4485 TrampolinePage *page;
4488 vm_address_t addr, taddr;
4490 vm_prot_t prot, max_prot;
4491 int psize, specific_trampoline_size;
4492 unsigned char *code;
4494 specific_trampoline_size = 2 * sizeof (gpointer);
4496 mono_aot_page_lock ();
4497 page = trampoline_pages [tramp_type];
4498 if (page && page->trampolines < page->trampolines_end) {
4499 code = page->trampolines;
4500 page->trampolines += specific_trampoline_size;
4501 mono_aot_page_unlock ();
4504 mono_aot_page_unlock ();
4505 psize = mono_pagesize ();
4506 /* the trampoline template page is in the mscorlib module */
4507 image = mono_defaults.corlib;
4510 amodule = image->aot_module;
4513 g_assert (amodule->info.tramp_page_size == psize);
4515 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
4516 tpage = load_function (amodule, "specific_trampolines_page");
4517 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
4518 tpage = load_function (amodule, "rgctx_trampolines_page");
4519 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
4520 tpage = load_function (amodule, "imt_trampolines_page");
4521 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
4522 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
4524 g_error ("Incorrect tramp type for trampolines page");
4526 /*g_warning ("loaded trampolines page at %x", tpage);*/
4528 /* avoid the unlikely case of looping forever */
4531 while (page == NULL && count-- > 0) {
4533 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
4534 * while the second will contain the trampolines.
4536 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
4537 if (ret != KERN_SUCCESS) {
4538 g_error ("Cannot allocate memory for trampolines: %d", ret);
4541 /*g_warning ("allocated trampoline double page at %x", addr);*/
4542 /* replace the second page with a remapped trampoline page */
4543 taddr = addr + psize;
4544 vm_deallocate (mach_task_self (), taddr, psize);
4545 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
4546 if (ret != KERN_SUCCESS) {
4547 /* someone else got the page, try again */
4548 vm_deallocate (mach_task_self (), addr, psize);
4551 /*g_warning ("remapped trampoline page at %x", taddr);*/
4553 mono_aot_page_lock ();
4554 page = trampoline_pages [tramp_type];
4555 /* some other thread already allocated, so use that to avoid wasting memory */
4556 if (page && page->trampolines < page->trampolines_end) {
4557 code = page->trampolines;
4558 page->trampolines += specific_trampoline_size;
4559 mono_aot_page_unlock ();
4560 vm_deallocate (mach_task_self (), addr, psize);
4561 vm_deallocate (mach_task_self (), taddr, psize);
4564 page = (TrampolinePage*)addr;
4565 page->next = trampoline_pages [tramp_type];
4566 trampoline_pages [tramp_type] = page;
4567 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
4568 page->trampolines_end = (void*)(taddr + psize - 64);
4569 code = page->trampolines;
4570 page->trampolines += specific_trampoline_size;
4571 mono_aot_page_unlock ();
4574 g_error ("Cannot allocate more trampoline pages: %d", ret);
4579 static unsigned char*
4580 get_new_trampoline_from_page (int tramp_type)
4582 g_error ("Page trampolines not supported.");
4589 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
4594 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
4596 data = (gpointer*)((char*)code - mono_pagesize ());
4599 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
4605 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
4610 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
4612 data = (gpointer*)((char*)code - mono_pagesize ());
4615 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
4621 get_new_imt_trampoline_from_page (gpointer arg)
4626 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
4628 data = (gpointer*)((char*)code - mono_pagesize ());
4630 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
4636 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
4641 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
4643 data = (gpointer*)((char*)code - mono_pagesize ());
4646 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
4650 /* Return a given kind of trampoline */
4652 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
4654 MonoAotModule *amodule;
4655 int index, tramp_size;
4658 /* Currently, we keep all trampolines in the mscorlib AOT image */
4659 image = mono_defaults.corlib;
4664 amodule = image->aot_module;
4667 *out_amodule = amodule;
4670 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
4672 #define MONOTOUCH_TRAMPOLINES_ERROR ""
4674 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
4675 g_error ("Ran out of trampolines of type %d in '%s' (%d)%s\n",
4676 tramp_type, image->name, amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
4678 index = amodule->trampoline_index [tramp_type] ++;
4682 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
4684 tramp_size = amodule->info.trampoline_size [tramp_type];
4687 *out_tramp_size = tramp_size;
4689 return amodule->trampolines [tramp_type] + (index * tramp_size);
4693 * Return a specific trampoline from the AOT file.
4696 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
4698 MonoAotModule *amodule;
4699 guint32 got_offset, tramp_size;
4700 guint8 *code, *tramp;
4701 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
4702 static gboolean inited;
4703 static guint32 num_trampolines;
4709 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
4718 if (!generic_trampolines [tramp_type]) {
4721 symbol = mono_get_generic_trampoline_name (tramp_type);
4722 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
4726 tramp = generic_trampolines [tramp_type];
4729 if (USE_PAGE_TRAMPOLINES) {
4730 code = get_new_specific_trampoline_from_page (tramp, arg1);
4733 code = get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
4735 amodule->got [got_offset] = tramp;
4736 amodule->got [got_offset + 1] = arg1;
4740 *code_len = tramp_size;
4746 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
4748 MonoAotModule *amodule;
4752 if (USE_PAGE_TRAMPOLINES) {
4753 code = get_new_rgctx_trampoline_from_page (addr, ctx);
4755 code = get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
4757 amodule->got [got_offset] = ctx;
4758 amodule->got [got_offset + 1] = addr;
4761 /* The caller expects an ftnptr */
4762 return mono_create_ftnptr (mono_domain_get (), code);
4766 mono_aot_get_unbox_trampoline (MonoMethod *method)
4768 guint32 method_index = mono_metadata_token_index (method->token) - 1;
4769 MonoAotModule *amodule;
4771 guint32 *ut, *ut_end, *entry;
4772 int low, high, entry_index;
4774 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
4775 method_index = find_extra_method (method, &amodule);
4776 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4777 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
4778 method_index = find_extra_method (shared, &amodule);
4780 g_assert (method_index != 0xffffff);
4782 amodule = method->klass->image->aot_module;
4786 ut = amodule->unbox_trampolines;
4787 ut_end = amodule->unbox_trampolines_end;
4789 /* Do a binary search in the sorted table */
4792 high = (ut_end - ut) / 2;
4793 while (low < high) {
4794 entry_index = (low + high) / 2;
4795 entry = &ut [(entry_index * 2)];
4796 if (entry [0] < method_index) {
4797 low = entry_index + 1;
4798 } else if (entry [0] > method_index) {
4801 if (amodule->info.flags & MONO_AOT_FILE_FLAG_DIRECT_METHOD_ADDRESSES)
4802 code = get_arm_bl_target (entry + 1);
4804 code = amodule->code + entry [1];
4810 /* The caller expects an ftnptr */
4811 return mono_create_ftnptr (mono_domain_get (), code);
4815 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
4819 MonoAotModule *amodule = mono_defaults.corlib->aot_module;
4820 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
4821 static int count = 0;
4824 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
4825 static gpointer addr;
4829 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
4832 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
4833 info = mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
4834 info [0] = GUINT_TO_POINTER (slot);
4835 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4836 code = mono_aot_get_static_rgctx_trampoline (info, addr);
4837 return mono_create_ftnptr (mono_domain_get (), code);
4840 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
4841 code = load_function (mono_defaults.corlib->aot_module, symbol);
4843 /* The caller expects an ftnptr */
4844 return mono_create_ftnptr (mono_domain_get (), code);
4848 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
4853 int i, index, real_count;
4854 MonoAotModule *amodule;
4857 for (i = 0; i < count; ++i) {
4858 MonoIMTCheckItem *item = imt_entries [i];
4860 if (item->is_equals)
4864 /* Save the entries into an array */
4865 buf = mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
4867 for (i = 0; i < count; ++i) {
4868 MonoIMTCheckItem *item = imt_entries [i];
4870 if (!item->is_equals)
4873 g_assert (item->key);
4875 buf [(index * 2)] = item->key;
4876 if (item->has_target_code) {
4877 gpointer *p = mono_domain_alloc (domain, sizeof (gpointer));
4878 *p = item->value.target_code;
4879 buf [(index * 2) + 1] = p;
4881 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
4885 buf [(index * 2)] = NULL;
4886 buf [(index * 2) + 1] = fail_tramp;
4888 if (USE_PAGE_TRAMPOLINES) {
4889 code = get_new_imt_trampoline_from_page (buf);
4891 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
4893 amodule->got [got_offset] = buf;
4900 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
4902 MonoAotModule *amodule;
4906 if (USE_PAGE_TRAMPOLINES) {
4907 code = get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
4909 code = get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
4911 amodule->got [got_offset] = arg;
4912 amodule->got [got_offset + 1] = addr;
4915 /* The caller expects an ftnptr */
4916 return mono_create_ftnptr (mono_domain_get (), code);
4920 * mono_aot_set_make_unreadable:
4922 * Set whenever to make all mmaped memory unreadable. In conjuction with a
4923 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
4926 mono_aot_set_make_unreadable (gboolean unreadable)
4930 make_unreadable = unreadable;
4932 if (make_unreadable && !inited) {
4933 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
4938 MonoAotModule *module;
4943 find_map (gpointer key, gpointer value, gpointer user_data)
4945 MonoAotModule *module = (MonoAotModule*)value;
4946 FindMapUserData *data = (FindMapUserData*)user_data;
4949 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
4950 data->module = module;
4953 static MonoAotModule*
4954 find_module_for_addr (void *ptr)
4956 FindMapUserData data;
4958 if (!make_unreadable)
4962 data.ptr = (guint8*)ptr;
4965 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
4972 * mono_aot_is_pagefault:
4974 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
4975 * within memory allocated by this module.
4978 mono_aot_is_pagefault (void *ptr)
4980 if (!make_unreadable)
4984 * Not signal safe, but SIGSEGV's are synchronous, and
4985 * this is only turned on by a MONO_DEBUG option.
4987 return find_module_for_addr (ptr) != NULL;
4991 * mono_aot_handle_pagefault:
4993 * Handle a pagefault caused by an unreadable page by making it readable again.
4996 mono_aot_handle_pagefault (void *ptr)
4998 #ifndef PLATFORM_WIN32
4999 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5003 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5004 g_assert (res == 0);
5015 mono_aot_init (void)
5020 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5026 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5032 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5038 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5044 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5050 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5056 mono_aot_get_plt_entry (guint8 *code)
5062 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
5068 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5073 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5079 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5081 g_assert_not_reached ();
5087 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5089 g_assert_not_reached ();
5094 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5096 g_assert_not_reached ();
5101 mono_aot_get_trampoline (const char *name)
5103 g_assert_not_reached ();
5108 mono_aot_get_unbox_trampoline (MonoMethod *method)
5110 g_assert_not_reached ();
5115 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5117 g_assert_not_reached ();
5122 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5124 g_assert_not_reached ();
5129 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5131 g_assert_not_reached ();
5136 mono_aot_register_jit_icall (const char *name, gpointer addr)