2 * aot.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
12 #include <sys/types.h>
18 #ifndef PLATFORM_WIN32
25 #ifdef HAVE_EXECINFO_H
31 #include <limits.h> /* for PAGESIZE */
36 #ifdef HAVE_SYS_WAIT_H
37 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
40 #include <mono/metadata/tabledefs.h>
41 #include <mono/metadata/class.h>
42 #include <mono/metadata/object.h>
43 #include <mono/metadata/tokentype.h>
44 #include <mono/metadata/appdomain.h>
45 #include <mono/metadata/debug-helpers.h>
46 #include <mono/metadata/assembly.h>
47 #include <mono/metadata/metadata-internals.h>
48 #include <mono/metadata/marshal.h>
49 #include <mono/metadata/gc-internal.h>
50 #include <mono/metadata/monitor.h>
51 #include <mono/utils/mono-logger.h>
52 #include "mono/utils/mono-compiler.h"
60 #define SHARED_EXT ".dll"
61 #elif (defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)
62 #define SHARED_EXT ".dylib"
64 #define SHARED_EXT ".so"
67 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
68 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
70 typedef struct MonoAotModule {
72 /* Optimization flags used to compile the module */
74 /* Pointer to the Global Offset Table */
77 GHashTable *name_cache;
78 GHashTable *extra_methods;
79 /* Maps methods to their code */
80 GHashTable *method_to_code;
81 MonoAssemblyName *image_names;
83 MonoAssembly *assembly;
84 MonoImage **image_table;
85 guint32 image_table_len;
95 guint8 *plt_jump_table;
96 guint32 plt_jump_table_size;
97 guint32 *code_offsets;
99 guint32 *method_info_offsets;
101 guint32 *got_info_offsets;
103 guint32 *ex_info_offsets;
104 guint32 *method_order;
105 guint32 *method_order_end;
107 guint32 *class_info_offsets;
108 guint32 *methods_loaded;
109 guint16 *class_name_table;
110 guint32 *extra_method_table;
111 guint32 *extra_method_info_offsets;
112 guint8 *extra_method_info;
114 guint32 num_trampolines, first_trampoline_got_offset, trampoline_index;
119 static GHashTable *aot_modules;
120 #define mono_aot_lock() EnterCriticalSection (&aot_mutex)
121 #define mono_aot_unlock() LeaveCriticalSection (&aot_mutex)
122 static CRITICAL_SECTION aot_mutex;
125 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
126 * AOT modules registered by mono_aot_register_module ().
128 static GHashTable *static_aot_modules;
131 * Disabling this will make a copy of the loaded code and use the copy instead
132 * of the original. This will place the caller and the callee close to each
133 * other in memory, possibly improving cache behavior. Since the original
134 * code is in copy-on-write memory, this will not increase the memory usage
137 static gboolean use_loaded_code = TRUE;
140 * Whenever to AOT compile loaded assemblies on demand and store them in
141 * a cache under $HOME/.mono/aot-cache.
143 static gboolean use_aot_cache = FALSE;
146 * Whenever to spawn a new process to AOT a file or do it in-process. Only relevant if
147 * use_aot_cache is TRUE.
149 static gboolean spawn_compiler = TRUE;
152 static gint32 mono_last_aot_method = -1;
154 static gboolean make_unreadable = FALSE;
155 static guint32 name_table_accesses = 0;
157 /* Used to speed-up find_aot_module () */
158 static gsize aot_code_low_addr = (gssize)-1;
159 static gsize aot_code_high_addr = 0;
161 /* Used to communicate with mono_aot_register_globals () */
162 static guint32 globals_tls_id = -1;
165 init_plt (MonoAotModule *info);
168 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
169 guint32 got_index, guint32 **got_slots,
170 guint8 *buf, guint8 **endbuf);
172 /*****************************************************/
174 /*****************************************************/
177 load_image (MonoAotModule *module, int index)
179 MonoAssembly *assembly;
180 MonoImageOpenStatus status;
182 g_assert (index < module->image_table_len);
184 if (module->image_table [index])
185 return module->image_table [index];
186 if (module->out_of_date)
189 assembly = mono_assembly_load (&module->image_names [index], NULL, &status);
191 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is unusable because dependency %s is not found.\n", module->aot_name, module->image_names [index].name);
192 module->out_of_date = TRUE;
196 if (strcmp (assembly->image->guid, module->image_guids [index])) {
197 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date (Older than dependency %s).\n", module->aot_name, module->image_names [index].name);
198 module->out_of_date = TRUE;
202 module->image_table [index] = assembly->image;
203 return assembly->image;
208 decode_value (guint8 *ptr, guint8 **rptr)
213 if ((b & 0x80) == 0){
216 } else if ((b & 0x40) == 0){
217 len = ((b & 0x3f) << 8 | ptr [1]);
219 } else if (b != 0xff) {
220 len = ((b & 0x1f) << 24) |
227 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
233 //printf ("DECODE: %d.\n", len);
238 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
241 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
243 static MonoGenericInst*
244 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
247 MonoType **type_argv;
248 MonoGenericInst *inst;
251 type_argc = decode_value (p, &p);
252 type_argv = g_new0 (MonoType*, type_argc);
254 for (i = 0; i < type_argc; ++i) {
255 MonoClass *pclass = decode_klass_ref (module, p, &p);
260 type_argv [i] = &pclass->byval_arg;
263 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
272 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
274 gboolean has_class_inst, has_method_inst;
277 has_class_inst = decode_value (p, &p);
278 if (has_class_inst) {
279 ctx->class_inst = decode_generic_inst (module, p, &p);
280 if (!ctx->class_inst)
283 has_method_inst = decode_value (p, &p);
284 if (has_method_inst) {
285 ctx->method_inst = decode_generic_inst (module, p, &p);
286 if (!ctx->method_inst)
295 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
298 MonoClass *klass, *eklass;
302 token = decode_value (p, &p);
307 if (mono_metadata_token_table (token) == 0) {
308 image = load_image (module, decode_value (p, &p));
311 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF + token);
312 } else if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
313 if (token == MONO_TOKEN_TYPE_SPEC) {
314 MonoTypeEnum type = decode_value (p, &p);
316 if (type == MONO_TYPE_GENERICINST) {
318 MonoGenericContext ctx;
321 gclass = decode_klass_ref (module, p, &p);
322 g_assert (gclass->generic_container);
324 memset (&ctx, 0, sizeof (ctx));
325 ctx.class_inst = decode_generic_inst (module, p, &p);
328 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
329 klass = mono_class_from_mono_type (type);
330 mono_metadata_free_type (type);
331 } else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
334 MonoGenericContainer *container;
336 // FIXME: Maybe use types directly to avoid
337 // the overhead of creating MonoClass-es
339 // FIXME: Memory management
340 t = g_new0 (MonoType, 1);
342 t->data.generic_param = g_new0 (MonoGenericParam, 1);
343 t->data.generic_param->num = decode_value (p, &p);
344 t->data.generic_param->name = "T";
346 is_method = decode_value (p, &p);
348 MonoMethod *method_def = decode_method_ref_2 (module, p, &p);
351 g_free (t->data.generic_param);
356 container = mono_method_get_generic_container (method_def);
358 MonoClass *class_def = decode_klass_ref (module, p, &p);
361 g_free (t->data.generic_param);
366 container = class_def->generic_container;
369 g_assert (container);
370 t->data.generic_param->owner = container;
372 klass = mono_class_from_mono_type (t);
374 g_assert_not_reached ();
377 image = load_image (module, decode_value (p, &p));
380 klass = mono_class_get (image, token);
382 } else if (token == MONO_TOKEN_TYPE_DEF) {
384 image = load_image (module, decode_value (p, &p));
387 rank = decode_value (p, &p);
388 eklass = decode_klass_ref (module, p, &p);
389 klass = mono_array_class_get (eklass, rank);
391 g_assert_not_reached ();
394 mono_class_init (klass);
400 static MonoClassField*
401 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
403 MonoClass *klass = decode_klass_ref (module, buf, &buf);
410 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
414 return mono_class_get_field (klass, token);
420 * Decode a method reference, and return its image and token. This avoids loading
421 * metadata for the method if the caller does not need it. If the method has no token,
422 * then it is loaded from metadata and METHOD is set to the method instance.
425 decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, gboolean *no_aot_trampoline, guint8 *buf, guint8 **endbuf)
427 guint32 image_index, value;
433 if (no_aot_trampoline)
434 *no_aot_trampoline = FALSE;
436 value = decode_value (p, &p);
437 image_index = value >> 24;
439 if (image_index == 252) {
440 if (no_aot_trampoline)
441 *no_aot_trampoline = TRUE;
442 value = decode_value (p, &p);
443 image_index = value >> 24;
446 if (image_index == 253) {
448 guint32 wrapper_type;
450 wrapper_type = decode_value (p, &p);
453 image = mono_defaults.corlib;
455 switch (wrapper_type) {
456 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
457 MonoMethod *m = decode_method_ref_2 (module, p, &p);
461 mono_class_init (m->klass);
462 *method = mono_marshal_get_remoting_invoke_with_check (m);
465 case MONO_WRAPPER_PROXY_ISINST: {
466 MonoClass *klass = decode_klass_ref (module, p, &p);
469 *method = mono_marshal_get_proxy_cancast (klass);
472 case MONO_WRAPPER_LDFLD:
473 case MONO_WRAPPER_LDFLDA:
474 case MONO_WRAPPER_STFLD:
475 case MONO_WRAPPER_ISINST: {
476 MonoClass *klass = decode_klass_ref (module, p, &p);
479 if (wrapper_type == MONO_WRAPPER_LDFLD)
480 *method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
481 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
482 *method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
483 else if (wrapper_type == MONO_WRAPPER_STFLD)
484 *method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
485 else if (wrapper_type == MONO_WRAPPER_ISINST)
486 *method = mono_marshal_get_isinst (klass);
488 g_assert_not_reached ();
491 case MONO_WRAPPER_LDFLD_REMOTE:
492 *method = mono_marshal_get_ldfld_remote_wrapper (NULL);
494 case MONO_WRAPPER_STFLD_REMOTE:
495 *method = mono_marshal_get_stfld_remote_wrapper (NULL);
497 case MONO_WRAPPER_ALLOC: {
498 int atype = decode_value (p, &p);
500 *method = mono_gc_get_managed_allocator_by_type (atype);
503 case MONO_WRAPPER_STELEMREF:
504 *method = mono_marshal_get_stelemref ();
506 case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
507 MonoMethod *m = decode_method_ref_2 (module, p, &p);
511 *method = mono_marshal_get_static_rgctx_invoke (m);
514 case MONO_WRAPPER_UNKNOWN: {
515 MonoMethodDesc *desc;
516 MonoMethod *orig_method;
517 int subtype = decode_value (p, &p);
519 if (subtype == MONO_AOT_WRAPPER_MONO_ENTER)
520 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
521 else if (subtype == MONO_AOT_WRAPPER_MONO_EXIT)
522 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
524 g_assert_not_reached ();
525 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
526 g_assert (orig_method);
527 mono_method_desc_free (desc);
528 *method = mono_monitor_get_fast_path (orig_method);
532 g_assert_not_reached ();
534 } else if (image_index == 255) {
536 image_index = decode_value (p, &p);
537 *token = decode_value (p, &p);
539 image = load_image (module, image_index);
542 } else if (image_index == 254) {
543 /* Method on generic instance */
545 MonoGenericContext ctx;
548 * These methods do not have a token which resolves them, so we
549 * resolve them immediately.
551 klass = decode_klass_ref (module, p, &p);
555 image_index = decode_value (p, &p);
556 *token = decode_value (p, &p);
558 image = load_image (module, image_index);
562 *method = mono_get_method_full (image, *token, NULL, NULL);
566 memset (&ctx, 0, sizeof (ctx));
568 if (FALSE && klass->generic_class) {
569 ctx.class_inst = klass->generic_class->context.class_inst;
570 ctx.method_inst = NULL;
572 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
575 memset (&ctx, 0, sizeof (ctx));
577 if (!decode_generic_context (module, &ctx, p, &p))
580 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
582 *token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
584 image = load_image (module, image_index);
595 * decode_method_ref_2:
597 * Similar to decode_method_ref, but resolve and return the method itself.
600 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
604 MonoImage *image = decode_method_ref (module, &token, &method, NULL, buf, endbuf);
610 return mono_get_method (image, token, NULL);
615 make_writable (guint8* addr, guint32 len)
617 #ifndef PLATFORM_WIN32
622 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
624 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1));
625 pages = (addr + len - page_start + PAGESIZE - 1) / PAGESIZE;
626 err = mprotect (page_start, pages * PAGESIZE, PROT_READ | PROT_WRITE | PROT_EXEC);
631 g_assert (VirtualProtect (addr, len, PAGE_EXECUTE_READWRITE, &oldp) != 0);
637 create_cache_structure (void)
643 home = g_get_home_dir ();
647 tmp = g_build_filename (home, ".mono", NULL);
648 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
649 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
650 #ifdef PLATFORM_WIN32
653 err = mkdir (tmp, 0777);
656 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
662 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
663 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
664 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
665 #ifdef PLATFORM_WIN32
668 err = mkdir (tmp, 0777);
671 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
680 * load_aot_module_from_cache:
682 * Experimental code to AOT compile loaded assemblies on demand.
685 * - Add environment variable MONO_AOT_CACHE_OPTIONS
686 * - Add options for controlling the cache size
687 * - Handle full cache by deleting old assemblies lru style
688 * - Add options for excluding assemblies during development
689 * - Maybe add a threshold after an assembly is AOT compiled
690 * - invoking a new mono process is a security risk
691 * - recompile the AOT module if one of its dependencies changes
694 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
696 char *fname, *cmd, *tmp2, *aot_options;
705 if (assembly->image->dynamic)
708 create_cache_structure ();
710 home = g_get_home_dir ();
712 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
713 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
717 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
718 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
721 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
723 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
725 aot_options = g_strdup_printf ("outfile=%s", fname);
727 if (spawn_compiler) {
728 /* FIXME: security */
729 /* FIXME: Has to pass the assembly loading path to the child process */
730 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
732 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
734 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
736 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
737 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
739 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
746 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
748 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
750 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
754 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
756 g_free (aot_options);
763 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
769 for (i = 0; globals [i]; i+= 2) {
770 if (strcmp (globals [i], name) == 0) {
771 *value = globals [i + 1];
776 mono_dl_symbol (module, name, value);
781 load_aot_module (MonoAssembly *assembly, gpointer user_data)
784 MonoAotModule *amodule;
786 gboolean usable = TRUE;
787 char *saved_guid = NULL;
788 char *aot_version = NULL;
789 char *runtime_version, *build_info;
790 char *opt_flags = NULL;
792 gboolean full_aot = FALSE;
793 gpointer *plt_jump_table_addr = NULL;
794 guint32 *plt_jump_table_size = NULL;
795 guint32 *trampolines_info = NULL;
796 gpointer *got_addr = NULL;
797 gpointer *got = NULL;
798 guint32 *got_size_ptr = NULL;
801 if (mono_compile_aot)
804 if (assembly->image->aot_module)
806 * Already loaded. This can happen because the assembly loading code might invoke
807 * the assembly load hooks multiple times for the same assembly.
811 if (assembly->image->dynamic)
815 if (static_aot_modules)
816 globals = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
822 /* Statically linked AOT module */
824 aot_name = g_strdup_printf ("%s", assembly->aname.name);
825 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
827 TlsSetValue (globals_tls_id, NULL);
830 sofile = load_aot_module_from_cache (assembly, &aot_name);
833 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
835 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
838 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
844 * If the image was compiled in no-dlsym mode, it contains no global symbols,
845 * instead it contains an ELF ctor function which is called by dlopen () which
846 * in turn calls mono_aot_register_globals () to register a table which contains
847 * the name and address of the globals.
849 globals = TlsGetValue (globals_tls_id);
850 TlsSetValue (globals_tls_id, NULL);
853 if (!sofile && !globals) {
855 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
862 find_symbol (sofile, globals, "mono_assembly_guid", (gpointer *) &saved_guid);
863 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &aot_version);
864 find_symbol (sofile, globals, "mono_aot_opt_flags", (gpointer *)&opt_flags);
865 find_symbol (sofile, globals, "mono_runtime_version", (gpointer *)&runtime_version);
867 if (!aot_version || strcmp (aot_version, MONO_AOT_FILE_VERSION)) {
868 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s has wrong file format version (expected %s got %s)\n", aot_name, MONO_AOT_FILE_VERSION, aot_version);
872 if (!saved_guid || strcmp (assembly->image->guid, saved_guid)) {
873 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date.\n", aot_name);
878 build_info = mono_get_runtime_build_info ();
879 if (!runtime_version || ((strlen (runtime_version) > 0 && strcmp (runtime_version, build_info)))) {
880 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled against runtime version '%s' while this runtime has version '%s'.\n", aot_name, runtime_version, build_info);
888 find_symbol (sofile, globals, "mono_aot_full_aot", (gpointer *)&full_aot_str);
890 if (full_aot_str && !strcmp (full_aot_str, "TRUE"))
894 if (mono_aot_only && !full_aot) {
895 fprintf (stderr, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name);
898 if (!mono_aot_only && full_aot) {
899 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled with --aot=full.\n", aot_name);
905 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name);
910 mono_dl_close (sofile);
911 assembly->image->aot_module = NULL;
915 find_symbol (sofile, globals, "got_addr", (gpointer *)&got_addr);
917 got = (gpointer*)*got_addr;
919 find_symbol (sofile, globals, "got_size", (gpointer *)&got_size_ptr);
920 g_assert (got_size_ptr);
922 amodule = g_new0 (MonoAotModule, 1);
923 amodule->aot_name = aot_name;
924 amodule->assembly = assembly;
926 amodule->got_size = *got_size_ptr;
927 amodule->got [0] = assembly->image;
928 amodule->globals = globals;
929 amodule->sofile = sofile;
930 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
932 sscanf (opt_flags, "%d", &amodule->opts);
934 /* Read image table */
936 guint32 table_len, i;
939 find_symbol (sofile, globals, "mono_image_table", (gpointer *)&table);
942 table_len = *(guint32*)table;
943 table += sizeof (guint32);
944 amodule->image_table = g_new0 (MonoImage*, table_len);
945 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
946 amodule->image_guids = g_new0 (char*, table_len);
947 amodule->image_table_len = table_len;
948 for (i = 0; i < table_len; ++i) {
949 MonoAssemblyName *aname = &(amodule->image_names [i]);
951 aname->name = g_strdup (table);
952 table += strlen (table) + 1;
953 amodule->image_guids [i] = g_strdup (table);
954 table += strlen (table) + 1;
956 aname->culture = g_strdup (table);
957 table += strlen (table) + 1;
958 memcpy (aname->public_key_token, table, strlen (table) + 1);
959 table += strlen (table) + 1;
961 table = ALIGN_PTR_TO (table, 8);
962 aname->flags = *(guint32*)table;
964 aname->major = *(guint32*)table;
966 aname->minor = *(guint32*)table;
968 aname->build = *(guint32*)table;
970 aname->revision = *(guint32*)table;
975 /* Read method and method_info tables */
976 find_symbol (sofile, globals, "method_offsets", (gpointer*)&amodule->code_offsets);
977 find_symbol (sofile, globals, "methods", (gpointer*)&amodule->code);
978 find_symbol (sofile, globals, "methods_end", (gpointer*)&amodule->code_end);
979 find_symbol (sofile, globals, "method_info_offsets", (gpointer*)&amodule->method_info_offsets);
980 find_symbol (sofile, globals, "method_info", (gpointer*)&amodule->method_info);
981 find_symbol (sofile, globals, "ex_info_offsets", (gpointer*)&amodule->ex_info_offsets);
982 find_symbol (sofile, globals, "ex_info", (gpointer*)&amodule->ex_info);
983 find_symbol (sofile, globals, "method_order", (gpointer*)&amodule->method_order);
984 find_symbol (sofile, globals, "method_order_end", (gpointer*)&amodule->method_order_end);
985 find_symbol (sofile, globals, "class_info", (gpointer*)&amodule->class_info);
986 find_symbol (sofile, globals, "class_info_offsets", (gpointer*)&amodule->class_info_offsets);
987 find_symbol (sofile, globals, "class_name_table", (gpointer *)&amodule->class_name_table);
988 find_symbol (sofile, globals, "extra_method_table", (gpointer *)&amodule->extra_method_table);
989 find_symbol (sofile, globals, "extra_method_info", (gpointer *)&amodule->extra_method_info);
990 find_symbol (sofile, globals, "extra_method_info_offsets", (gpointer *)&amodule->extra_method_info_offsets);
991 find_symbol (sofile, globals, "got_info", (gpointer*)&amodule->got_info);
992 find_symbol (sofile, globals, "got_info_offsets", (gpointer*)&amodule->got_info_offsets);
993 find_symbol (sofile, globals, "trampolines", (gpointer*)&amodule->trampolines);
994 find_symbol (sofile, globals, "mem_end", (gpointer*)&amodule->mem_end);
996 amodule->mem_begin = amodule->code;
998 find_symbol (sofile, globals, "plt", (gpointer*)&amodule->plt);
999 find_symbol (sofile, globals, "plt_end", (gpointer*)&amodule->plt_end);
1000 find_symbol (sofile, globals, "plt_info", (gpointer*)&amodule->plt_info);
1002 find_symbol (sofile, globals, "plt_jump_table_addr", (gpointer *)&plt_jump_table_addr);
1003 g_assert (plt_jump_table_addr);
1004 amodule->plt_jump_table = (guint8*)*plt_jump_table_addr;
1005 g_assert (amodule->plt_jump_table);
1007 find_symbol (sofile, globals, "plt_jump_table_size", (gpointer *)&plt_jump_table_size);
1008 g_assert (plt_jump_table_size);
1009 amodule->plt_jump_table_size = *plt_jump_table_size;
1011 find_symbol (sofile, globals, "trampolines_info", (gpointer *)&trampolines_info);
1012 if (trampolines_info) {
1013 amodule->num_trampolines = trampolines_info [0];
1014 amodule->first_trampoline_got_offset = trampolines_info [1];
1017 if (make_unreadable) {
1018 #ifndef PLATFORM_WIN32
1021 int pages, err, len;
1023 addr = amodule->mem_begin;
1024 len = amodule->mem_end - amodule->mem_begin;
1026 /* Round down in both directions to avoid modifying data which is not ours */
1027 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1)) + PAGESIZE;
1028 pages = ((addr + len - page_start + PAGESIZE - 1) / PAGESIZE) - 1;
1029 err = mprotect (page_start, pages * PAGESIZE, 0);
1030 g_assert (err == 0);
1036 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1037 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1039 g_hash_table_insert (aot_modules, assembly, amodule);
1042 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1044 assembly->image->aot_module = amodule;
1047 * Since we store methoddef and classdef tokens when referring to methods/classes in
1048 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1049 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1050 * non-lazily, since we can't handle out-of-date errors later.
1052 for (i = 0; i < amodule->image_table_len; ++i)
1053 load_image (amodule, i);
1055 if (amodule->out_of_date) {
1056 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);
1057 if (mono_aot_only) {
1058 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);
1063 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1067 * mono_aot_register_globals:
1069 * This is called by the ctor function in AOT images compiled with the
1070 * 'no-dlsym' option.
1073 mono_aot_register_globals (gpointer *globals)
1075 TlsSetValue (globals_tls_id, globals);
1079 * mono_aot_register_module:
1081 * This should be called by embedding code to register AOT modules statically linked
1082 * into the executable. AOT_INFO should be the value of the
1083 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1086 mono_aot_register_module (gpointer *aot_info)
1094 /* Determine the assembly name */
1095 find_symbol (NULL, globals, "mono_aot_assembly_name", (gpointer*)&aname);
1098 /* This could be called before startup */
1102 if (!static_aot_modules)
1103 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1105 g_hash_table_insert (static_aot_modules, aname, globals);
1112 mono_aot_init (void)
1114 InitializeCriticalSection (&aot_mutex);
1115 aot_modules = g_hash_table_new (NULL, NULL);
1116 globals_tls_id = TlsAlloc ();
1118 mono_install_assembly_load_hook (load_aot_module, NULL);
1120 if (getenv ("MONO_LASTAOT"))
1121 mono_last_aot_method = atoi (getenv ("MONO_LASTAOT"));
1122 if (getenv ("MONO_AOT_CACHE"))
1123 use_aot_cache = TRUE;
1127 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1131 info->vtable_size = decode_value (buf, &buf);
1132 if (info->vtable_size == -1)
1135 flags = decode_value (buf, &buf);
1136 info->ghcimpl = (flags >> 0) & 0x1;
1137 info->has_finalize = (flags >> 1) & 0x1;
1138 info->has_cctor = (flags >> 2) & 0x1;
1139 info->has_nested_classes = (flags >> 3) & 0x1;
1140 info->blittable = (flags >> 4) & 0x1;
1141 info->has_references = (flags >> 5) & 0x1;
1142 info->has_static_refs = (flags >> 6) & 0x1;
1143 info->no_special_static_fields = (flags >> 7) & 0x1;
1145 if (info->has_cctor) {
1146 MonoImage *cctor_image = decode_method_ref (module, &info->cctor_token, NULL, NULL, buf, &buf);
1150 if (info->has_finalize) {
1151 info->finalize_image = decode_method_ref (module, &info->finalize_token, NULL, NULL, buf, &buf);
1152 if (!info->finalize_image)
1156 info->instance_size = decode_value (buf, &buf);
1157 info->class_size = decode_value (buf, &buf);
1158 info->packing_size = decode_value (buf, &buf);
1159 info->min_align = decode_value (buf, &buf);
1167 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1170 MonoClass *klass = vtable->klass;
1171 MonoAotModule *aot_module = klass->image->aot_module;
1173 MonoCachedClassInfo class_info;
1177 gboolean no_aot_trampoline;
1179 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !aot_module)
1182 info = &aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1185 err = decode_cached_class_info (aot_module, &class_info, p, &p);
1189 for (i = 0; i < slot; ++i)
1190 decode_method_ref (aot_module, &token, NULL, NULL, p, &p);
1192 image = decode_method_ref (aot_module, &token, NULL, &no_aot_trampoline, p, &p);
1195 if (no_aot_trampoline)
1198 if (mono_metadata_token_index (token) == 0)
1201 return mono_aot_get_method_from_token (domain, image, token);
1205 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1207 MonoAotModule *aot_module = klass->image->aot_module;
1211 if (klass->rank || !aot_module)
1214 p = (guint8*)&aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1216 err = decode_cached_class_info (aot_module, res, p, &p);
1224 * mono_aot_get_class_from_name:
1226 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1227 * using a cache stored in the AOT file.
1228 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1230 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1234 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1236 MonoAotModule *aot_module = image->aot_module;
1237 guint16 *table, *entry;
1240 char full_name_buf [1024];
1242 const char *name2, *name_space2;
1244 guint32 cols [MONO_TYPEDEF_SIZE];
1245 GHashTable *nspace_table;
1247 if (!aot_module || !aot_module->class_name_table)
1254 /* First look in the cache */
1255 if (!aot_module->name_cache)
1256 aot_module->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1257 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1259 *klass = g_hash_table_lookup (nspace_table, name);
1266 table_size = aot_module->class_name_table [0];
1267 table = aot_module->class_name_table + 1;
1269 if (name_space [0] == '\0')
1270 full_name = g_strdup_printf ("%s", name);
1272 if (strlen (name_space) + strlen (name) < 1000) {
1273 sprintf (full_name_buf, "%s.%s", name_space, name);
1274 full_name = full_name_buf;
1276 full_name = g_strdup_printf ("%s.%s", name_space, name);
1279 hash = g_str_hash (full_name) % table_size;
1280 if (full_name != full_name_buf)
1283 entry = &table [hash * 2];
1285 if (entry [0] != 0) {
1286 t = &image->tables [MONO_TABLE_TYPEDEF];
1289 guint32 index = entry [0];
1290 guint32 next = entry [1];
1291 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1293 name_table_accesses ++;
1295 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1297 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1298 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1300 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1302 *klass = mono_class_get (image, token);
1307 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1308 if (!nspace_table) {
1309 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1310 g_hash_table_insert (aot_module->name_cache, (char*)name_space2, nspace_table);
1312 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1319 entry = &table [next * 2];
1332 decode_exception_debug_info (MonoAotModule *aot_module, MonoDomain *domain,
1333 MonoMethod *method, guint8* ex_info, guint8 *code)
1337 guint code_len, used_int_regs;
1338 gboolean has_generic_jit_info;
1340 MonoMethodHeader *header;
1341 int generic_info_size;
1343 header = mono_method_get_header (method);
1345 /* Load the method info from the AOT file */
1348 code_len = decode_value (p, &p);
1349 used_int_regs = decode_value (p, &p);
1350 has_generic_jit_info = decode_value (p, &p);
1351 if (has_generic_jit_info)
1352 generic_info_size = sizeof (MonoGenericJitInfo);
1354 generic_info_size = 0;
1356 /* Exception table */
1357 if (header && header->num_clauses) {
1359 mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
1360 jinfo->num_clauses = header->num_clauses;
1362 for (i = 0; i < header->num_clauses; ++i) {
1363 MonoExceptionClause *ec = &header->clauses [i];
1364 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1366 ei->flags = ec->flags;
1367 ei->exvar_offset = decode_value (p, &p);
1369 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
1370 ei->data.filter = code + decode_value (p, &p);
1372 ei->data.catch_class = ec->data.catch_class;
1374 ei->try_start = code + decode_value (p, &p);
1375 ei->try_end = code + decode_value (p, &p);
1376 ei->handler_start = code + decode_value (p, &p);
1380 jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
1382 jinfo->code_size = code_len;
1383 jinfo->used_regs = used_int_regs;
1384 jinfo->method = method;
1385 jinfo->code_start = code;
1386 jinfo->domain_neutral = 0;
1388 if (has_generic_jit_info) {
1389 MonoGenericJitInfo *gi;
1391 jinfo->has_generic_jit_info = 1;
1393 gi = mono_jit_info_get_generic_jit_info (jinfo);
1396 gi->has_this = decode_value (p, &p);
1397 gi->this_reg = decode_value (p, &p);
1398 gi->this_offset = decode_value (p, &p);
1400 /* This currently contains no data */
1401 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1403 jinfo->method = decode_method_ref_2 (aot_module, p, &p);
1406 /* Load debug info */
1407 buf_len = decode_value (p, &p);
1408 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1414 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
1417 int pos, left, right, offset, offset1, offset2, last_offset, new_offset;
1418 int page_index, method_index, table_len, is_wrapper;
1420 MonoAotModule *amodule = image->aot_module;
1423 guint8 *code, *ex_info, *p;
1424 guint32 *table, *ptr;
1430 if (domain != mono_get_root_domain ())
1434 offset = (guint8*)addr - amodule->code;
1436 /* First search through the index */
1437 ptr = amodule->method_order;
1442 if (*ptr == 0xffffff)
1446 while (*ptr != 0xffffff) {
1447 guint32 method_index = ptr [0];
1448 new_offset = amodule->code_offsets [method_index];
1450 if (offset >= last_offset && offset < new_offset) {
1456 last_offset = new_offset;
1460 /* Skip rest of index */
1461 while (*ptr != 0xffffff)
1466 table_len = amodule->method_order_end - table;
1468 g_assert (table <= amodule->method_order_end);
1471 left = (page_index * 1024);
1472 right = left + 1024;
1474 if (right > table_len)
1477 offset1 = amodule->code_offsets [table [left]];
1478 g_assert (offset1 <= offset);
1480 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1483 //printf ("Not found in index: 0x%x\n", offset);
1488 /* Binary search inside the method_order table to find the method */
1490 pos = (left + right) / 2;
1492 g_assert (table + pos <= amodule->method_order_end);
1494 //printf ("Pos: %5d < %5d < %5d Offset: 0x%05x < 0x%05x < 0x%05x\n", left, pos, right, amodule->code_offsets [table [left]], offset, amodule->code_offsets [table [right]]);
1496 offset1 = amodule->code_offsets [table [pos]];
1497 if (table + pos + 1 >= amodule->method_order_end)
1498 offset2 = amodule->code_end - amodule->code;
1500 offset2 = amodule->code_offsets [table [pos + 1]];
1502 if (offset < offset1)
1504 else if (offset >= offset2)
1510 method_index = table [pos];
1512 /* Might be a wrapper/extra method */
1513 if (amodule->extra_methods) {
1515 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
1522 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
1524 * This is hit for extra methods which are called directly, so they are
1525 * not in amodule->extra_methods.
1527 table_len = amodule->extra_method_info_offsets [0];
1528 table = amodule->extra_method_info_offsets + 1;
1535 pos = ((left + right) / 2);
1537 g_assert (pos < table_len);
1539 if (table [pos * 2] < method_index)
1541 else if (table [pos * 2] > method_index)
1547 p = amodule->extra_method_info + table [(pos * 2) + 1];
1548 is_wrapper = decode_value (p, &p);
1549 g_assert (!is_wrapper);
1550 method = decode_method_ref_2 (amodule, p, &p);
1553 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
1554 method = mono_get_method (image, token, NULL);
1561 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1563 code = &amodule->code [amodule->code_offsets [method_index]];
1564 ex_info = &amodule->ex_info [amodule->ex_info_offsets [method_index]];
1566 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code);
1568 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
1569 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
1571 /* Add it to the normal JitInfo tables */
1572 mono_jit_info_table_add (domain, jinfo);
1577 /* Keep it in sync with the version in aot-compiler.c */
1578 static inline gboolean
1579 is_shared_got_patch (MonoJumpInfo *patch_info)
1581 switch (patch_info->type) {
1582 case MONO_PATCH_INFO_VTABLE:
1583 case MONO_PATCH_INFO_CLASS:
1584 case MONO_PATCH_INFO_IID:
1585 case MONO_PATCH_INFO_ADJUSTED_IID:
1586 case MONO_PATCH_INFO_FIELD:
1587 case MONO_PATCH_INFO_SFLDA:
1588 case MONO_PATCH_INFO_DECLSEC:
1589 case MONO_PATCH_INFO_LDTOKEN:
1590 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1591 case MONO_PATCH_INFO_RVA:
1592 case MONO_PATCH_INFO_METHODCONST:
1600 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
1608 case MONO_PATCH_INFO_METHOD:
1609 case MONO_PATCH_INFO_METHOD_JUMP:
1610 case MONO_PATCH_INFO_ICALL_ADDR:
1611 case MONO_PATCH_INFO_METHOD_RGCTX: {
1614 gboolean no_aot_trampoline;
1616 image = decode_method_ref (aot_module, &token, &method, &no_aot_trampoline, p, &p);
1620 #ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
1621 if (!method && !mono_aot_only && !no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (token) == MONO_TABLE_METHOD)) {
1622 ji->data.target = mono_create_jit_trampoline_from_token (image, token);
1623 ji->type = MONO_PATCH_INFO_ABS;
1627 ji->data.method = method;
1629 ji->data.method = mono_get_method (image, token, NULL);
1630 g_assert (ji->data.method);
1631 mono_class_init (ji->data.method->klass);
1634 ji->data.method = mono_get_method (image, token, NULL);
1635 g_assert (ji->data.method);
1636 mono_class_init (ji->data.method->klass);
1641 case MONO_PATCH_INFO_INTERNAL_METHOD:
1642 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1643 guint32 len = decode_value (p, &p);
1645 ji->data.name = (char*)p;
1649 case MONO_PATCH_INFO_METHODCONST:
1651 ji->data.method = decode_method_ref_2 (aot_module, p, &p);
1652 if (!ji->data.method)
1655 case MONO_PATCH_INFO_VTABLE:
1656 case MONO_PATCH_INFO_CLASS:
1657 case MONO_PATCH_INFO_IID:
1658 case MONO_PATCH_INFO_ADJUSTED_IID:
1660 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1661 if (!ji->data.klass)
1664 case MONO_PATCH_INFO_CLASS_INIT:
1665 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1666 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1667 if (!ji->data.klass)
1670 case MONO_PATCH_INFO_IMAGE:
1671 ji->data.image = load_image (aot_module, decode_value (p, &p));
1672 if (!ji->data.image)
1675 case MONO_PATCH_INFO_FIELD:
1676 case MONO_PATCH_INFO_SFLDA:
1678 ji->data.field = decode_field_info (aot_module, p, &p);
1679 if (!ji->data.field)
1682 case MONO_PATCH_INFO_SWITCH:
1683 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
1684 ji->data.table->table_size = decode_value (p, &p);
1685 table = g_new (gpointer, ji->data.table->table_size);
1686 ji->data.table->table = (MonoBasicBlock**)table;
1687 for (i = 0; i < ji->data.table->table_size; i++)
1688 table [i] = (gpointer)(gssize)decode_value (p, &p);
1690 case MONO_PATCH_INFO_R4: {
1693 ji->data.target = mono_mempool_alloc0 (mp, sizeof (float));
1694 val = decode_value (p, &p);
1695 *(float*)ji->data.target = *(float*)&val;
1698 case MONO_PATCH_INFO_R8: {
1701 ji->data.target = mono_mempool_alloc0 (mp, sizeof (double));
1703 val [0] = decode_value (p, &p);
1704 val [1] = decode_value (p, &p);
1705 *(double*)ji->data.target = *(double*)val;
1708 case MONO_PATCH_INFO_LDSTR:
1709 image = load_image (aot_module, decode_value (p, &p));
1712 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
1714 case MONO_PATCH_INFO_RVA:
1715 case MONO_PATCH_INFO_DECLSEC:
1716 case MONO_PATCH_INFO_LDTOKEN:
1717 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1719 image = load_image (aot_module, decode_value (p, &p));
1722 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
1724 ji->data.token->has_context = decode_value (p, &p);
1725 if (ji->data.token->has_context) {
1726 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
1731 case MONO_PATCH_INFO_EXC_NAME:
1732 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1733 if (!ji->data.klass)
1735 ji->data.name = ji->data.klass->name;
1737 case MONO_PATCH_INFO_METHOD_REL:
1738 ji->data.offset = decode_value (p, &p);
1740 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1741 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1742 case MONO_PATCH_INFO_MONITOR_ENTER:
1743 case MONO_PATCH_INFO_MONITOR_EXIT:
1745 case MONO_PATCH_INFO_RGCTX_FETCH: {
1747 MonoJumpInfoRgctxEntry *entry;
1749 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
1750 entry->method = decode_method_ref_2 (aot_module, p, &p);
1751 entry->in_mrgctx = decode_value (p, &p);
1752 entry->info_type = decode_value (p, &p);
1753 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
1754 entry->data->type = decode_value (p, &p);
1756 res = decode_patch (aot_module, mp, entry->data, p, &p);
1759 ji->data.rgctx_entry = entry;
1763 g_warning ("unhandled type %d", ji->type);
1764 g_assert_not_reached ();
1776 decode_got_entry (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf, guint32 *got_offset)
1782 if (is_shared_got_patch (ji)) {
1783 *got_offset = decode_value (p, &p);
1785 if (aot_module->got [*got_offset]) {
1786 /* Already loaded */
1787 //printf ("HIT!\n");
1789 shared_p = aot_module->got_info + aot_module->got_info_offsets [*got_offset];
1791 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
1796 res = decode_patch (aot_module, mp, ji, p, &p);
1805 static MonoJumpInfo*
1806 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
1807 guint32 got_index, guint32 **got_slots,
1808 guint8 *buf, guint8 **endbuf)
1810 MonoJumpInfo *patches;
1811 MonoJumpInfo *patch_info = NULL;
1813 guint32 last_offset;
1818 /* First load the type + offset table */
1820 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
1822 for (pindex = 0; pindex < n_patches; ++pindex) {
1823 MonoJumpInfo *ji = &patches [pindex];
1828 //printf ("T: %d O: %d.\n", ji->type, ji->ip.i);
1829 ji->next = patch_info;
1833 *got_slots = g_malloc (sizeof (guint32) * n_patches);
1834 memset (*got_slots, 0xff, sizeof (guint32) * n_patches);
1836 /* Then load the other data */
1837 for (pindex = 0; pindex < n_patches; ++pindex) {
1838 MonoJumpInfo *ji = &patches [pindex];
1840 if (!decode_got_entry (aot_module, mp, ji, p, &p, (*got_slots) + pindex))
1843 if ((*got_slots) [pindex] == 0xffffffff)
1844 (*got_slots) [pindex] = got_index ++;
1851 g_free (*got_slots);
1858 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
1861 * Jump addresses cannot be patched by the trampoline code since it
1862 * does not have access to the caller's address. Instead, we collect
1863 * the addresses of the GOT slots pointing to a method, and patch
1864 * them after the method has been compiled.
1866 MonoJitDomainInfo *info = domain_jit_info (domain);
1869 mono_domain_lock (domain);
1870 if (!info->jump_target_got_slot_hash)
1871 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
1872 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
1873 list = g_slist_prepend (list, got_slot);
1874 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
1875 mono_domain_unlock (domain);
1881 * Load the method identified by METHOD_INDEX from the AOT image. Return a
1882 * pointer to the native code of the method, or NULL if not found.
1883 * METHOD might not be set if the caller only has the image/token info.
1886 load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
1889 gboolean from_plt = method == NULL;
1891 int i, pindex, got_index = 0, n_patches, used_strings;
1892 gboolean keep_patches = TRUE;
1893 guint8 *p, *ex_info;
1894 MonoJitInfo *jinfo = NULL;
1895 guint8 *code, *info;
1897 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
1900 if ((domain != mono_get_root_domain ()) && (!(aot_module->opts & MONO_OPT_SHARED)))
1901 /* Non shared AOT code can't be used in other appdomains */
1904 if (aot_module->out_of_date)
1907 if (aot_module->code_offsets [method_index] == 0xffffffff) {
1908 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
1912 method = mono_get_method (image, token, NULL);
1913 full_name = mono_method_full_name (method, TRUE);
1914 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
1920 code = &aot_module->code [aot_module->code_offsets [method_index]];
1921 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
1924 if (!aot_module->methods_loaded)
1925 aot_module->methods_loaded = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 1);
1928 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
1931 if (mono_last_aot_method != -1) {
1932 if (mono_jit_stats.methods_aot > mono_last_aot_method)
1935 if (method && mono_jit_stats.methods_aot == mono_last_aot_method)
1936 printf ("LAST AOT METHOD: %s.%s.%s.\n", method->klass->name_space, method->klass->name, method->name);
1942 klass = method->klass;
1943 decode_klass_ref (aot_module, p, &p);
1945 klass = decode_klass_ref (aot_module, p, &p);
1948 if (!use_loaded_code) {
1952 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (token) - 1]];
1953 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
1956 mono_domain_lock (domain);
1957 code2 = mono_code_manager_reserve (domain->code_mp, jinfo->code_size);
1958 mono_domain_unlock (domain);
1959 memcpy (code2, code, jinfo->code_size);
1960 mono_arch_flush_icache (code2, jinfo->code_size);
1964 if (aot_module->opts & MONO_OPT_SHARED)
1965 used_strings = decode_value (p, &p);
1969 for (i = 0; i < used_strings; i++) {
1970 guint token = decode_value (p, &p);
1971 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (token));
1974 if (aot_module->opts & MONO_OPT_SHARED)
1975 keep_patches = FALSE;
1977 n_patches = decode_value (p, &p);
1979 keep_patches = FALSE;
1982 MonoJumpInfo *patches;
1988 mp = mono_mempool_new ();
1990 got_index = decode_value (p, &p);
1992 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
1993 if (patches == NULL)
1996 for (pindex = 0; pindex < n_patches; ++pindex) {
1997 MonoJumpInfo *ji = &patches [pindex];
1999 if (!aot_module->got [got_slots [pindex]]) {
2000 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
2001 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
2002 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
2004 ji->type = MONO_PATCH_INFO_NONE;
2010 mono_mempool_destroy (mp);
2015 mono_jit_stats.methods_aot++;
2017 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2021 method = mono_get_method (image, token, NULL);
2023 full_name = mono_method_full_name (method, TRUE);
2026 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
2027 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2030 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND AOT compiled code for %s %p - %p %p\n", full_name, code, code + jinfo->code_size, info);
2034 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2036 init_plt (aot_module);
2038 if (method && method->wrapper_type)
2039 g_hash_table_insert (aot_module->method_to_code, method, code);
2043 if (from_plt && klass && !klass->generic_container)
2044 mono_runtime_class_init (mono_class_vtable (domain, klass));
2049 /* FIXME: The space in domain->mp is wasted */
2050 if (aot_module->opts & MONO_OPT_SHARED)
2051 /* No need to cache patches */
2052 mono_mempool_destroy (mp);
2061 find_extra_method_in_amodule (MonoAotModule *amodule, MonoMethod *method)
2063 guint32 table_size, entry_size, hash;
2064 guint32 *table, *entry;
2065 char *full_name = NULL;
2070 table_size = amodule->extra_method_table [0];
2071 table = amodule->extra_method_table + 1;
2074 if (method->wrapper_type) {
2075 /* FIXME: This is a hack to work around the fact that runtime invoke wrappers get assigned to some random class */
2076 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
2077 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
2078 full_name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
2081 full_name = mono_method_full_name (method, TRUE);
2085 if (method->wrapper_type)
2086 hash = g_str_hash (method->name) % table_size;
2088 hash = 0 % table_size;
2090 entry = &table [hash * entry_size];
2092 if (entry [0] != 0) {
2094 guint32 key = entry [0];
2095 guint32 value = entry [1];
2096 guint32 next = entry [entry_size - 1];
2101 // FIXME: Avoid fully decoding the method ref
2102 p = amodule->extra_method_info + key;
2103 is_wrapper = decode_value (p, &p);
2104 if (method->wrapper_type && is_wrapper) {
2105 if (!strcmp (full_name, (char*)p))
2108 m = decode_method_ref_2 (amodule, p, &p);
2114 entry = &table [next * entry_size];
2125 add_module_cb (gpointer key, gpointer value, gpointer user_data)
2127 g_ptr_array_add ((GPtrArray*)user_data, value);
2131 * find_extra_method:
2133 * Try finding METHOD in the extra_method table in all AOT images.
2134 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
2135 * module where the method was found.
2138 find_extra_method (MonoMethod *method, MonoAotModule **out_amodule)
2144 /* Try the method's module first */
2145 *out_amodule = method->klass->image->aot_module;
2146 index = find_extra_method_in_amodule (method->klass->image->aot_module, method);
2147 if (index != 0xffffff)
2151 * Try all other modules.
2152 * This is needed because generic instances klass->image points to the image
2153 * containing the generic definition, but the native code is generated to the
2154 * AOT image which contains the reference.
2157 /* Make a copy to avoid doing the search inside the aot lock */
2158 modules = g_ptr_array_new ();
2160 g_hash_table_foreach (aot_modules, add_module_cb, modules);
2164 for (i = 0; i < modules->len; ++i) {
2165 MonoAotModule *amodule = g_ptr_array_index (modules, i);
2167 if (amodule != method->klass->image->aot_module)
2168 index = find_extra_method_in_amodule (amodule, method);
2169 if (index != 0xffffff) {
2170 *out_amodule = amodule;
2175 g_ptr_array_free (modules, TRUE);
2181 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2183 MonoClass *klass = method->klass;
2184 guint32 method_index;
2185 MonoAotModule *amodule = klass->image->aot_module;
2191 if (amodule->out_of_date)
2194 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2195 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2196 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2197 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2200 g_assert (klass->inited);
2202 /* Find method index */
2203 if (method->is_inflated && mono_method_is_generic_sharable_impl (method, FALSE)) {
2204 method = mono_method_get_declaring_generic_method (method);
2205 method_index = mono_metadata_token_index (method->token) - 1;
2206 } else if (method->is_inflated || !method->token) {
2207 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
2209 code = g_hash_table_lookup (amodule->method_to_code, method);
2214 method_index = find_extra_method (method, &amodule);
2215 if (method_index == 0xffffff) {
2216 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2219 full_name = mono_method_full_name (method, TRUE);
2220 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
2226 if (method_index == 0xffffff)
2229 /* Needed by find_jit_info */
2231 if (!amodule->extra_methods)
2232 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2233 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
2237 method_index = mono_metadata_token_index (method->token) - 1;
2240 return load_method (domain, amodule, klass->image, method, method->token, method_index);
2244 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2248 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2250 MonoAotModule *aot_module = image->aot_module;
2256 method_index = mono_metadata_token_index (token) - 1;
2258 return load_method (domain, aot_module, image, NULL, token, method_index);
2264 } IsGotEntryUserData;
2267 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
2269 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
2270 MonoAotModule *aot_module = (MonoAotModule*)value;
2272 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->got_size)))
2277 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2279 IsGotEntryUserData user_data;
2284 user_data.addr = addr;
2285 user_data.res = FALSE;
2287 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
2290 return user_data.res;
2295 MonoAotModule *module;
2296 } FindAotModuleUserData;
2299 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
2301 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
2302 MonoAotModule *aot_module = (MonoAotModule*)value;
2304 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
2305 data->module = aot_module;
2308 static inline MonoAotModule*
2309 find_aot_module (guint8 *code)
2311 FindAotModuleUserData user_data;
2316 /* Reading these need no locking */
2317 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
2320 user_data.addr = code;
2321 user_data.module = NULL;
2324 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
2327 return user_data.module;
2331 * mono_aot_plt_resolve:
2333 * This function is called by the entries in the PLT to resolve the actual method that
2334 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2337 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2339 #ifdef MONO_ARCH_AOT_SUPPORTED
2340 guint8 *p, *target, *plt_entry;
2342 MonoAotModule *module = (MonoAotModule*)aot_module;
2346 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2348 p = &module->plt_info [plt_info_offset];
2350 ji.type = decode_value (p, &p);
2352 mp = mono_mempool_new_size (512);
2353 res = decode_patch (module, mp, &ji, p, &p);
2354 // FIXME: Error handling (how ?)
2357 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
2359 mono_mempool_destroy (mp);
2361 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2362 plt_entry = mono_aot_get_plt_entry (code);
2363 g_assert (plt_entry);
2364 mono_arch_patch_plt_entry (plt_entry, target);
2368 g_assert_not_reached ();
2376 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2377 * method in the module is loaded to avoid committing memory by writing to it.
2378 * LOCKING: Assumes the AOT lock is held.
2381 init_plt (MonoAotModule *info)
2383 #ifdef MONO_ARCH_AOT_SUPPORTED
2385 guint8 *buf = info->plt;
2386 #elif defined(__x86_64__)
2388 #elif defined(__arm__)
2393 if (info->plt_inited)
2396 tramp = mono_create_specific_trampoline (info, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
2399 /* Initialize the first PLT entry */
2400 make_writable (info->plt, info->plt_end - info->plt);
2401 x86_jump_code (buf, tramp);
2402 #elif defined(__x86_64__) || defined(__arm__)
2404 * Initialize the entries in the plt_jump_table to point to the default targets.
2406 n_entries = info->plt_jump_table_size / sizeof (gpointer);
2408 /* The first entry points to the AOT trampoline */
2409 ((gpointer*)info->plt_jump_table)[0] = tramp;
2410 for (i = 1; i < n_entries; ++i)
2411 /* All the default entries point to the first entry */
2412 ((gpointer*)info->plt_jump_table)[i] = info->plt;
2414 g_assert_not_reached ();
2417 info->plt_inited = TRUE;
2422 * mono_aot_get_plt_entry:
2424 * Return the address of the PLT entry called by the code at CODE if exists.
2427 mono_aot_get_plt_entry (guint8 *code)
2429 MonoAotModule *aot_module = find_aot_module (code);
2430 #if defined(__arm__)
2437 #if defined(__i386__) || defined(__x86_64__)
2438 if (code [-5] == 0xe8) {
2439 guint32 disp = *(guint32*)(code - 4);
2440 guint8 *target = code + disp;
2442 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2445 #elif defined(__arm__)
2446 ins = ((guint32*)(gpointer)code) [-1];
2448 /* Should be a 'bl' */
2449 if ((((ins >> 25) & 0x7) == 0x5) && (((ins >> 24) & 0x1) == 0x1)) {
2450 gint32 disp = ((gint32)ins) & 0xffffff;
2451 guint8 *target = code - 4 + 8 + (disp * 4);
2453 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2457 g_assert_not_reached ();
2464 * mono_aot_get_plt_info_offset:
2466 * Return the PLT info offset belonging to the plt entry called by CODE.
2469 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2471 guint8 *plt_entry = mono_aot_get_plt_entry (code);
2473 g_assert (plt_entry);
2475 /* The offset is embedded inside the code after the plt entry */
2476 #if defined(__i386__)
2477 return *(guint32*)(plt_entry + 5);
2478 #elif defined(__x86_64__)
2479 return *(guint32*)(plt_entry + 6);
2480 #elif defined(__arm__)
2481 /* The offset is stored as the 5th word of the plt entry */
2482 return ((guint32*)plt_entry) [4];
2484 g_assert_not_reached ();
2490 load_named_code (MonoAotModule *amodule, const char *name)
2494 int n_patches, got_index, pindex;
2500 symbol = g_strdup_printf ("%s", name);
2501 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
2504 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
2506 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
2510 symbol = g_strdup_printf ("%s_p", name);
2511 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
2514 /* Nothing to patch */
2517 /* Similar to mono_aot_load_method () */
2519 n_patches = decode_value (p, &p);
2522 MonoJumpInfo *patches;
2525 mp = mono_mempool_new ();
2527 got_index = decode_value (p, &p);
2529 patches = load_patch_info (amodule, mp, n_patches, got_index, &got_slots, p, &p);
2532 for (pindex = 0; pindex < n_patches; ++pindex) {
2533 MonoJumpInfo *ji = &patches [pindex];
2537 * When this code is executed, the runtime may not yet initalized, so
2538 * resolve the patch info by hand.
2540 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
2541 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
2542 target = mono_get_lmf_addr;
2543 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
2544 target = mono_thread_force_interruption_checkpoint;
2545 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
2546 target = mono_exception_from_token;
2547 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
2548 target = mono_get_throw_exception ();
2550 } else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
2551 target = mono_amd64_throw_exception;
2554 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
2555 target = mono_arm_throw_exception;
2557 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
2558 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
2559 target = (gpointer)mono_get_trampoline_func (tramp_type2);
2560 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
2561 /* atoll is needed because the the offset is unsigned */
2565 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
2566 g_assert (res == 1);
2567 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
2568 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_enter")) {
2569 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
2570 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_exit")) {
2571 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
2573 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
2574 g_assert_not_reached ();
2578 /* Hopefully the code doesn't have patches which need method or
2581 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
2584 amodule->got [got_slots [pindex]] = target;
2589 mono_mempool_destroy (mp);
2596 * Return the piece of code identified by NAME from the mscorlib AOT file.
2599 mono_aot_get_named_code (const char *name)
2602 MonoAotModule *amodule;
2604 image = mono_defaults.corlib;
2607 amodule = image->aot_module;
2610 return load_named_code (amodule, name);
2614 * Return a specific trampoline from the AOT file.
2617 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2619 MonoAotModule *amodule;
2620 int index, tramp_size;
2621 guint8 *code, *tramp;
2622 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
2624 /* Currently, we keep all trampolines in the mscorlib AOT image */
2625 image = mono_defaults.corlib;
2630 amodule = image->aot_module;
2633 if (amodule->trampoline_index == amodule->num_trampolines)
2634 g_error ("Ran out of trampolines in '%s' (%d)\n", image->name, amodule->num_trampolines);
2636 index = amodule->trampoline_index ++;
2640 if (!generic_trampolines [tramp_type]) {
2643 symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
2644 generic_trampolines [tramp_type] = mono_aot_get_named_code (symbol);
2648 tramp = generic_trampolines [tramp_type];
2651 amodule->got [amodule->first_trampoline_got_offset + (index *2)] = tramp;
2652 amodule->got [amodule->first_trampoline_got_offset + (index *2) + 1] = arg1;
2656 #elif defined(__arm__)
2660 g_assert_not_reached ();
2663 code = amodule->trampolines + (index * tramp_size);
2665 *code_len = tramp_size;
2671 mono_aot_get_unbox_trampoline (MonoMethod *method)
2673 guint32 method_index = mono_metadata_token_index (method->token) - 1;
2674 MonoAotModule *amodule;
2678 amodule = method->klass->image->aot_module;
2681 symbol = g_strdup_printf ("unbox_trampoline_%d", method_index);
2682 code = load_named_code (amodule, symbol);
2688 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2693 symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", slot);
2694 code = load_named_code (mono_defaults.corlib->aot_module, symbol);
2703 mono_aot_init (void)
2708 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2714 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2720 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2726 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2732 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2738 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2744 mono_aot_get_plt_entry (guint8 *code)
2750 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2756 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2762 mono_aot_create_specific_trampolines (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2764 g_assert_not_reached ();
2769 mono_aot_get_named_code (char *name)
2771 g_assert_not_reached ();
2776 mono_aot_get_unbox_trampoline (MonoMethod *method)
2778 g_assert_not_reached ();