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/utils/mono-logger.h>
51 #include "mono/utils/mono-compiler.h"
59 #define SHARED_EXT ".dll"
60 #elif (defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)
61 #define SHARED_EXT ".dylib"
63 #define SHARED_EXT ".so"
66 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
67 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
69 typedef struct MonoAotModule {
71 /* Optimization flags used to compile the module */
73 /* Pointer to the Global Offset Table */
76 GHashTable *name_cache;
77 GHashTable *extra_methods;
78 /* Maps methods to their code */
79 GHashTable *method_to_code;
80 MonoAssemblyName *image_names;
82 MonoAssembly *assembly;
83 MonoImage **image_table;
84 guint32 image_table_len;
94 guint8 *plt_jump_table;
95 guint32 plt_jump_table_size;
96 guint32 *code_offsets;
98 guint32 *method_info_offsets;
100 guint32 *got_info_offsets;
102 guint32 *ex_info_offsets;
103 guint32 *method_order;
104 guint32 *method_order_end;
106 guint32 *class_info_offsets;
107 guint32 *methods_loaded;
108 guint16 *class_name_table;
109 guint32 *extra_method_table;
110 guint32 *extra_method_info_offsets;
111 guint8 *extra_method_info;
113 guint32 num_trampolines, first_trampoline_got_offset, trampoline_index;
118 static GHashTable *aot_modules;
119 #define mono_aot_lock() EnterCriticalSection (&aot_mutex)
120 #define mono_aot_unlock() LeaveCriticalSection (&aot_mutex)
121 static CRITICAL_SECTION aot_mutex;
124 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
125 * AOT modules registered by mono_aot_register_module ().
127 static GHashTable *static_aot_modules;
130 * Disabling this will make a copy of the loaded code and use the copy instead
131 * of the original. This will place the caller and the callee close to each
132 * other in memory, possibly improving cache behavior. Since the original
133 * code is in copy-on-write memory, this will not increase the memory usage
136 static gboolean use_loaded_code = TRUE;
139 * Whenever to AOT compile loaded assemblies on demand and store them in
140 * a cache under $HOME/.mono/aot-cache.
142 static gboolean use_aot_cache = FALSE;
145 * Whenever to spawn a new process to AOT a file or do it in-process. Only relevant if
146 * use_aot_cache is TRUE.
148 static gboolean spawn_compiler = TRUE;
151 static gint32 mono_last_aot_method = -1;
153 static gboolean make_unreadable = FALSE;
154 static guint32 n_pagefaults = 0;
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 static inline gboolean
173 is_got_patch (MonoJumpInfoType patch_type)
178 /*****************************************************/
180 /*****************************************************/
183 load_image (MonoAotModule *module, int index)
185 MonoAssembly *assembly;
186 MonoImageOpenStatus status;
188 g_assert (index < module->image_table_len);
190 if (module->image_table [index])
191 return module->image_table [index];
192 if (module->out_of_date)
195 assembly = mono_assembly_load (&module->image_names [index], NULL, &status);
197 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);
198 module->out_of_date = TRUE;
202 if (strcmp (assembly->image->guid, module->image_guids [index])) {
203 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);
204 module->out_of_date = TRUE;
208 module->image_table [index] = assembly->image;
209 return assembly->image;
214 decode_value (guint8 *ptr, guint8 **rptr)
219 if ((b & 0x80) == 0){
222 } else if ((b & 0x40) == 0){
223 len = ((b & 0x3f) << 8 | ptr [1]);
225 } else if (b != 0xff) {
226 len = ((b & 0x1f) << 24) |
233 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
239 //printf ("DECODE: %d.\n", len);
244 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
247 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
249 static MonoGenericInst*
250 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
253 MonoType **type_argv;
254 MonoGenericInst *inst;
257 type_argc = decode_value (p, &p);
258 type_argv = g_new0 (MonoType*, type_argc);
260 for (i = 0; i < type_argc; ++i) {
261 MonoClass *pclass = decode_klass_ref (module, p, &p);
266 type_argv [i] = &pclass->byval_arg;
269 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
278 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
280 gboolean has_class_inst, has_method_inst;
283 has_class_inst = decode_value (p, &p);
284 if (has_class_inst) {
285 ctx->class_inst = decode_generic_inst (module, p, &p);
286 if (!ctx->class_inst)
289 has_method_inst = decode_value (p, &p);
290 if (has_method_inst) {
291 ctx->method_inst = decode_generic_inst (module, p, &p);
292 if (!ctx->method_inst)
301 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
304 MonoClass *klass, *eklass;
308 token = decode_value (p, &p);
313 if (mono_metadata_token_table (token) == 0) {
314 image = load_image (module, decode_value (p, &p));
317 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF + token);
318 } else if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
319 if (token == MONO_TOKEN_TYPE_SPEC) {
320 MonoTypeEnum type = decode_value (p, &p);
322 if (type == MONO_TYPE_GENERICINST) {
324 MonoGenericContext ctx;
327 gclass = decode_klass_ref (module, p, &p);
328 g_assert (gclass->generic_container);
330 memset (&ctx, 0, sizeof (ctx));
331 ctx.class_inst = decode_generic_inst (module, p, &p);
334 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
335 klass = mono_class_from_mono_type (type);
336 mono_metadata_free_type (type);
337 } else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
340 MonoGenericContainer *container;
342 // FIXME: Maybe use types directly to avoid
343 // the overhead of creating MonoClass-es
345 // FIXME: Memory management
346 t = g_new0 (MonoType, 1);
348 t->data.generic_param = g_new0 (MonoGenericParam, 1);
349 t->data.generic_param->num = decode_value (p, &p);
350 t->data.generic_param->name = "T";
352 is_method = decode_value (p, &p);
354 MonoMethod *method_def = decode_method_ref_2 (module, p, &p);
357 g_free (t->data.generic_param);
362 container = mono_method_get_generic_container (method_def);
364 MonoClass *class_def = decode_klass_ref (module, p, &p);
367 g_free (t->data.generic_param);
372 container = class_def->generic_container;
375 g_assert (container);
376 t->data.generic_param->owner = container;
378 klass = mono_class_from_mono_type (t);
380 g_assert_not_reached ();
383 image = load_image (module, decode_value (p, &p));
386 klass = mono_class_get (image, token);
388 } else if (token == MONO_TOKEN_TYPE_DEF) {
390 image = load_image (module, decode_value (p, &p));
393 rank = decode_value (p, &p);
394 eklass = decode_klass_ref (module, p, &p);
395 klass = mono_array_class_get (eklass, rank);
397 g_assert_not_reached ();
400 mono_class_init (klass);
406 static MonoClassField*
407 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
409 MonoClass *klass = decode_klass_ref (module, buf, &buf);
416 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
420 return mono_class_get_field (klass, token);
426 * Decode a method reference, and return its image and token. This avoids loading
427 * metadata for the method if the caller does not need it. If the method has no token,
428 * then it is loaded from metadata and METHOD is set to the method instance.
431 decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, gboolean *no_aot_trampoline, guint8 *buf, guint8 **endbuf)
433 guint32 image_index, value;
439 if (no_aot_trampoline)
440 *no_aot_trampoline = FALSE;
442 value = decode_value (p, &p);
443 image_index = value >> 24;
445 if (image_index == 252) {
446 if (no_aot_trampoline)
447 *no_aot_trampoline = TRUE;
448 value = decode_value (p, &p);
449 image_index = value >> 24;
452 if (image_index == 253) {
454 guint32 wrapper_type;
456 wrapper_type = decode_value (p, &p);
459 image = mono_defaults.corlib;
461 switch (wrapper_type) {
462 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
463 MonoMethod *m = decode_method_ref_2 (module, p, &p);
467 mono_class_init (m->klass);
468 *method = mono_marshal_get_remoting_invoke_with_check (m);
471 case MONO_WRAPPER_PROXY_ISINST: {
472 MonoClass *klass = decode_klass_ref (module, p, &p);
475 *method = mono_marshal_get_proxy_cancast (klass);
478 case MONO_WRAPPER_LDFLD:
479 case MONO_WRAPPER_LDFLDA:
480 case MONO_WRAPPER_STFLD:
481 case MONO_WRAPPER_ISINST: {
482 MonoClass *klass = decode_klass_ref (module, p, &p);
485 if (wrapper_type == MONO_WRAPPER_LDFLD)
486 *method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
487 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
488 *method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
489 else if (wrapper_type == MONO_WRAPPER_STFLD)
490 *method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
491 else if (wrapper_type == MONO_WRAPPER_ISINST)
492 *method = mono_marshal_get_isinst (klass);
494 g_assert_not_reached ();
497 case MONO_WRAPPER_LDFLD_REMOTE:
498 *method = mono_marshal_get_ldfld_remote_wrapper (NULL);
500 case MONO_WRAPPER_STFLD_REMOTE:
501 *method = mono_marshal_get_stfld_remote_wrapper (NULL);
503 case MONO_WRAPPER_ALLOC: {
504 int atype = decode_value (p, &p);
506 *method = mono_gc_get_managed_allocator_by_type (atype);
509 case MONO_WRAPPER_STELEMREF:
510 *method = mono_marshal_get_stelemref ();
512 case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
513 MonoMethod *m = decode_method_ref_2 (module, p, &p);
517 *method = mono_marshal_get_static_rgctx_invoke (m);
521 g_assert_not_reached ();
523 } else if (image_index == 255) {
525 image_index = decode_value (p, &p);
526 *token = decode_value (p, &p);
528 image = load_image (module, image_index);
531 } else if (image_index == 254) {
532 /* Method on generic instance */
534 MonoGenericContext ctx;
537 * These methods do not have a token which resolves them, so we
538 * resolve them immediately.
540 klass = decode_klass_ref (module, p, &p);
544 image_index = decode_value (p, &p);
545 *token = decode_value (p, &p);
547 image = load_image (module, image_index);
551 *method = mono_get_method_full (image, *token, NULL, NULL);
555 memset (&ctx, 0, sizeof (ctx));
557 if (FALSE && klass->generic_class) {
558 ctx.class_inst = klass->generic_class->context.class_inst;
559 ctx.method_inst = NULL;
561 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
564 memset (&ctx, 0, sizeof (ctx));
566 if (!decode_generic_context (module, &ctx, p, &p))
569 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
571 *token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
573 image = load_image (module, image_index);
584 * decode_method_ref_2:
586 * Similar to decode_method_ref, but resolve and return the method itself.
589 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
593 MonoImage *image = decode_method_ref (module, &token, &method, NULL, buf, endbuf);
599 return mono_get_method (image, token, NULL);
604 make_writable (guint8* addr, guint32 len)
606 #ifndef PLATFORM_WIN32
611 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
613 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1));
614 pages = (addr + len - page_start + PAGESIZE - 1) / PAGESIZE;
615 err = mprotect (page_start, pages * PAGESIZE, PROT_READ | PROT_WRITE | PROT_EXEC);
620 g_assert (VirtualProtect (addr, len, PAGE_EXECUTE_READWRITE, &oldp) != 0);
626 create_cache_structure (void)
632 home = g_get_home_dir ();
636 tmp = g_build_filename (home, ".mono", NULL);
637 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
638 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
639 #ifdef PLATFORM_WIN32
642 err = mkdir (tmp, 0777);
645 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
651 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
652 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
653 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
654 #ifdef PLATFORM_WIN32
657 err = mkdir (tmp, 0777);
660 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
669 * load_aot_module_from_cache:
671 * Experimental code to AOT compile loaded assemblies on demand.
674 * - Add environment variable MONO_AOT_CACHE_OPTIONS
675 * - Add options for controlling the cache size
676 * - Handle full cache by deleting old assemblies lru style
677 * - Add options for excluding assemblies during development
678 * - Maybe add a threshold after an assembly is AOT compiled
679 * - invoking a new mono process is a security risk
680 * - recompile the AOT module if one of its dependencies changes
683 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
685 char *fname, *cmd, *tmp2, *aot_options;
694 if (assembly->image->dynamic)
697 create_cache_structure ();
699 home = g_get_home_dir ();
701 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
702 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
706 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
707 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
710 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
712 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
714 aot_options = g_strdup_printf ("outfile=%s", fname);
716 if (spawn_compiler) {
717 /* FIXME: security */
718 /* FIXME: Has to pass the assembly loading path to the child process */
719 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
721 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
723 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
725 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
726 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
728 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
735 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
737 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
739 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
743 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
745 g_free (aot_options);
752 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
758 for (i = 0; globals [i]; i+= 2) {
759 if (strcmp (globals [i], name) == 0) {
760 *value = globals [i + 1];
765 mono_dl_symbol (module, name, value);
770 load_aot_module (MonoAssembly *assembly, gpointer user_data)
773 MonoAotModule *amodule;
775 gboolean usable = TRUE;
776 char *saved_guid = NULL;
777 char *aot_version = NULL;
778 char *runtime_version;
779 char *opt_flags = NULL;
781 gboolean full_aot = FALSE;
782 gpointer *plt_jump_table_addr = NULL;
783 guint32 *plt_jump_table_size = NULL;
784 guint32 *trampolines_info = NULL;
785 gpointer *got_addr = NULL;
786 gpointer *got = NULL;
787 guint32 *got_size_ptr = NULL;
790 if (mono_compile_aot)
793 if (assembly->image->aot_module)
795 * Already loaded. This can happen because the assembly loading code might invoke
796 * the assembly load hooks multiple times for the same assembly.
800 if (assembly->image->dynamic)
804 if (static_aot_modules)
805 globals = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
811 /* Statically linked AOT module */
813 aot_name = g_strdup_printf ("%s", assembly->aname.name);
814 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
816 TlsSetValue (globals_tls_id, NULL);
819 sofile = load_aot_module_from_cache (assembly, &aot_name);
822 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
824 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
827 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
833 * If the image was compiled in no-dlsym mode, it contains no global symbols,
834 * instead it contains an ELF ctor function which is called by dlopen () which
835 * in turn calls mono_aot_register_globals () to register a table which contains
836 * the name and address of the globals.
838 globals = TlsGetValue (globals_tls_id);
839 TlsSetValue (globals_tls_id, NULL);
842 if (!sofile && !globals) {
844 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
851 find_symbol (sofile, globals, "mono_assembly_guid", (gpointer *) &saved_guid);
852 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &aot_version);
853 find_symbol (sofile, globals, "mono_aot_opt_flags", (gpointer *)&opt_flags);
854 find_symbol (sofile, globals, "mono_runtime_version", (gpointer *)&runtime_version);
856 if (!aot_version || strcmp (aot_version, MONO_AOT_FILE_VERSION)) {
857 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);
861 if (!saved_guid || strcmp (assembly->image->guid, saved_guid)) {
862 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date.\n", aot_name);
867 if (!runtime_version || ((strlen (runtime_version) > 0 && strcmp (runtime_version, FULL_VERSION)))) {
868 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, FULL_VERSION);
875 find_symbol (sofile, globals, "mono_aot_full_aot", (gpointer *)&full_aot_str);
877 if (full_aot_str && !strcmp (full_aot_str, "TRUE"))
881 if (mono_aot_only && !full_aot) {
882 fprintf (stderr, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name);
885 if (!mono_aot_only && full_aot) {
886 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled with --aot=full.\n", aot_name);
892 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name);
897 mono_dl_close (sofile);
898 assembly->image->aot_module = NULL;
902 find_symbol (sofile, globals, "got_addr", (gpointer *)&got_addr);
904 got = (gpointer*)*got_addr;
906 find_symbol (sofile, globals, "got_size", (gpointer *)&got_size_ptr);
907 g_assert (got_size_ptr);
909 amodule = g_new0 (MonoAotModule, 1);
910 amodule->aot_name = aot_name;
911 amodule->assembly = assembly;
913 amodule->got_size = *got_size_ptr;
914 amodule->got [0] = assembly->image;
915 amodule->globals = globals;
916 amodule->sofile = sofile;
917 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
919 sscanf (opt_flags, "%d", &amodule->opts);
921 /* Read image table */
923 guint32 table_len, i;
926 find_symbol (sofile, globals, "mono_image_table", (gpointer *)&table);
929 table_len = *(guint32*)table;
930 table += sizeof (guint32);
931 amodule->image_table = g_new0 (MonoImage*, table_len);
932 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
933 amodule->image_guids = g_new0 (char*, table_len);
934 amodule->image_table_len = table_len;
935 for (i = 0; i < table_len; ++i) {
936 MonoAssemblyName *aname = &(amodule->image_names [i]);
938 aname->name = g_strdup (table);
939 table += strlen (table) + 1;
940 amodule->image_guids [i] = g_strdup (table);
941 table += strlen (table) + 1;
943 aname->culture = g_strdup (table);
944 table += strlen (table) + 1;
945 memcpy (aname->public_key_token, table, strlen (table) + 1);
946 table += strlen (table) + 1;
948 table = ALIGN_PTR_TO (table, 8);
949 aname->flags = *(guint32*)table;
951 aname->major = *(guint32*)table;
953 aname->minor = *(guint32*)table;
955 aname->build = *(guint32*)table;
957 aname->revision = *(guint32*)table;
962 /* Read method and method_info tables */
963 find_symbol (sofile, globals, "method_offsets", (gpointer*)&amodule->code_offsets);
964 find_symbol (sofile, globals, "methods", (gpointer*)&amodule->code);
965 find_symbol (sofile, globals, "methods_end", (gpointer*)&amodule->code_end);
966 find_symbol (sofile, globals, "method_info_offsets", (gpointer*)&amodule->method_info_offsets);
967 find_symbol (sofile, globals, "method_info", (gpointer*)&amodule->method_info);
968 find_symbol (sofile, globals, "ex_info_offsets", (gpointer*)&amodule->ex_info_offsets);
969 find_symbol (sofile, globals, "ex_info", (gpointer*)&amodule->ex_info);
970 find_symbol (sofile, globals, "method_order", (gpointer*)&amodule->method_order);
971 find_symbol (sofile, globals, "method_order_end", (gpointer*)&amodule->method_order_end);
972 find_symbol (sofile, globals, "class_info", (gpointer*)&amodule->class_info);
973 find_symbol (sofile, globals, "class_info_offsets", (gpointer*)&amodule->class_info_offsets);
974 find_symbol (sofile, globals, "class_name_table", (gpointer *)&amodule->class_name_table);
975 find_symbol (sofile, globals, "extra_method_table", (gpointer *)&amodule->extra_method_table);
976 find_symbol (sofile, globals, "extra_method_info", (gpointer *)&amodule->extra_method_info);
977 find_symbol (sofile, globals, "extra_method_info_offsets", (gpointer *)&amodule->extra_method_info_offsets);
978 find_symbol (sofile, globals, "got_info", (gpointer*)&amodule->got_info);
979 find_symbol (sofile, globals, "got_info_offsets", (gpointer*)&amodule->got_info_offsets);
980 find_symbol (sofile, globals, "trampolines", (gpointer*)&amodule->trampolines);
981 find_symbol (sofile, globals, "mem_end", (gpointer*)&amodule->mem_end);
983 amodule->mem_begin = amodule->code;
985 find_symbol (sofile, globals, "plt", (gpointer*)&amodule->plt);
986 find_symbol (sofile, globals, "plt_end", (gpointer*)&amodule->plt_end);
987 find_symbol (sofile, globals, "plt_info", (gpointer*)&amodule->plt_info);
989 find_symbol (sofile, globals, "plt_jump_table_addr", (gpointer *)&plt_jump_table_addr);
990 g_assert (plt_jump_table_addr);
991 amodule->plt_jump_table = (guint8*)*plt_jump_table_addr;
992 g_assert (amodule->plt_jump_table);
994 find_symbol (sofile, globals, "plt_jump_table_size", (gpointer *)&plt_jump_table_size);
995 g_assert (plt_jump_table_size);
996 amodule->plt_jump_table_size = *plt_jump_table_size;
998 find_symbol (sofile, globals, "trampolines_info", (gpointer *)&trampolines_info);
999 if (trampolines_info) {
1000 amodule->num_trampolines = trampolines_info [0];
1001 amodule->first_trampoline_got_offset = trampolines_info [1];
1004 if (make_unreadable) {
1005 #ifndef PLATFORM_WIN32
1008 int pages, err, len;
1010 addr = amodule->mem_begin;
1011 len = amodule->mem_end - amodule->mem_begin;
1013 /* Round down in both directions to avoid modifying data which is not ours */
1014 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1)) + PAGESIZE;
1015 pages = ((addr + len - page_start + PAGESIZE - 1) / PAGESIZE) - 1;
1016 err = mprotect (page_start, pages * PAGESIZE, 0);
1017 g_assert (err == 0);
1023 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1024 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1026 g_hash_table_insert (aot_modules, assembly, amodule);
1029 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1031 assembly->image->aot_module = amodule;
1034 * Since we store methoddef and classdef tokens when referring to methods/classes in
1035 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1036 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1037 * non-lazily, since we can't handle out-of-date errors later.
1039 for (i = 0; i < amodule->image_table_len; ++i)
1040 load_image (amodule, i);
1042 if (amodule->out_of_date) {
1043 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);
1044 if (mono_aot_only) {
1045 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);
1050 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1054 * mono_aot_register_globals:
1056 * This is called by the ctor function in AOT images compiled with the
1057 * 'no-dlsym' option.
1060 mono_aot_register_globals (gpointer *globals)
1062 TlsSetValue (globals_tls_id, globals);
1066 * mono_aot_register_module:
1068 * This should be called by embedding code to register AOT modules statically linked
1069 * into the executable. AOT_INFO should be the value of the
1070 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1073 mono_aot_register_module (gpointer *aot_info)
1081 /* Determine the assembly name */
1082 find_symbol (NULL, globals, "mono_aot_assembly_name", (gpointer*)&aname);
1085 /* This could be called before startup */
1089 if (!static_aot_modules)
1090 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1092 g_hash_table_insert (static_aot_modules, aname, globals);
1099 mono_aot_init (void)
1101 InitializeCriticalSection (&aot_mutex);
1102 aot_modules = g_hash_table_new (NULL, NULL);
1103 globals_tls_id = TlsAlloc ();
1105 mono_install_assembly_load_hook (load_aot_module, NULL);
1107 if (getenv ("MONO_LASTAOT"))
1108 mono_last_aot_method = atoi (getenv ("MONO_LASTAOT"));
1109 if (getenv ("MONO_AOT_CACHE"))
1110 use_aot_cache = TRUE;
1114 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1118 info->vtable_size = decode_value (buf, &buf);
1119 if (info->vtable_size == -1)
1122 flags = decode_value (buf, &buf);
1123 info->ghcimpl = (flags >> 0) & 0x1;
1124 info->has_finalize = (flags >> 1) & 0x1;
1125 info->has_cctor = (flags >> 2) & 0x1;
1126 info->has_nested_classes = (flags >> 3) & 0x1;
1127 info->blittable = (flags >> 4) & 0x1;
1128 info->has_references = (flags >> 5) & 0x1;
1129 info->has_static_refs = (flags >> 6) & 0x1;
1130 info->no_special_static_fields = (flags >> 7) & 0x1;
1132 if (info->has_cctor) {
1133 MonoImage *cctor_image = decode_method_ref (module, &info->cctor_token, NULL, NULL, buf, &buf);
1137 if (info->has_finalize) {
1138 info->finalize_image = decode_method_ref (module, &info->finalize_token, NULL, NULL, buf, &buf);
1139 if (!info->finalize_image)
1143 info->instance_size = decode_value (buf, &buf);
1144 info->class_size = decode_value (buf, &buf);
1145 info->packing_size = decode_value (buf, &buf);
1146 info->min_align = decode_value (buf, &buf);
1154 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1157 MonoClass *klass = vtable->klass;
1158 MonoAotModule *aot_module = klass->image->aot_module;
1160 MonoCachedClassInfo class_info;
1164 gboolean no_aot_trampoline;
1166 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !aot_module)
1169 info = &aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1172 err = decode_cached_class_info (aot_module, &class_info, p, &p);
1176 for (i = 0; i < slot; ++i)
1177 decode_method_ref (aot_module, &token, NULL, NULL, p, &p);
1179 image = decode_method_ref (aot_module, &token, NULL, &no_aot_trampoline, p, &p);
1182 if (no_aot_trampoline)
1185 if (mono_metadata_token_index (token) == 0)
1188 return mono_aot_get_method_from_token (domain, image, token);
1192 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1194 MonoAotModule *aot_module = klass->image->aot_module;
1198 if (klass->rank || !aot_module)
1201 p = (guint8*)&aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1203 err = decode_cached_class_info (aot_module, res, p, &p);
1211 * mono_aot_get_class_from_name:
1213 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1214 * using a cache stored in the AOT file.
1215 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1217 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1221 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1223 MonoAotModule *aot_module = image->aot_module;
1224 guint16 *table, *entry;
1227 char full_name_buf [1024];
1229 const char *name2, *name_space2;
1231 guint32 cols [MONO_TYPEDEF_SIZE];
1232 GHashTable *nspace_table;
1234 if (!aot_module || !aot_module->class_name_table)
1241 /* First look in the cache */
1242 if (!aot_module->name_cache)
1243 aot_module->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1244 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1246 *klass = g_hash_table_lookup (nspace_table, name);
1253 table_size = aot_module->class_name_table [0];
1254 table = aot_module->class_name_table + 1;
1256 if (name_space [0] == '\0')
1257 full_name = g_strdup_printf ("%s", name);
1259 if (strlen (name_space) + strlen (name) < 1000) {
1260 sprintf (full_name_buf, "%s.%s", name_space, name);
1261 full_name = full_name_buf;
1263 full_name = g_strdup_printf ("%s.%s", name_space, name);
1266 hash = g_str_hash (full_name) % table_size;
1267 if (full_name != full_name_buf)
1270 entry = &table [hash * 2];
1272 if (entry [0] != 0) {
1273 t = &image->tables [MONO_TABLE_TYPEDEF];
1276 guint32 index = entry [0];
1277 guint32 next = entry [1];
1278 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1280 name_table_accesses ++;
1282 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1284 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1285 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1287 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1289 *klass = mono_class_get (image, token);
1294 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1295 if (!nspace_table) {
1296 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1297 g_hash_table_insert (aot_module->name_cache, (char*)name_space2, nspace_table);
1299 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1306 entry = &table [next * 2];
1319 decode_exception_debug_info (MonoAotModule *aot_module, MonoDomain *domain,
1320 MonoMethod *method, guint8* ex_info, guint8 *code)
1324 guint code_len, used_int_regs;
1325 gboolean has_generic_jit_info;
1327 MonoMethodHeader *header;
1328 int generic_info_size;
1330 header = mono_method_get_header (method);
1332 /* Load the method info from the AOT file */
1335 code_len = decode_value (p, &p);
1336 used_int_regs = decode_value (p, &p);
1337 has_generic_jit_info = decode_value (p, &p);
1338 if (has_generic_jit_info)
1339 generic_info_size = sizeof (MonoGenericJitInfo);
1341 generic_info_size = 0;
1343 /* Exception table */
1344 if (header && header->num_clauses) {
1346 mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
1347 jinfo->num_clauses = header->num_clauses;
1349 for (i = 0; i < header->num_clauses; ++i) {
1350 MonoExceptionClause *ec = &header->clauses [i];
1351 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1353 ei->flags = ec->flags;
1354 ei->exvar_offset = decode_value (p, &p);
1356 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
1357 ei->data.filter = code + decode_value (p, &p);
1359 ei->data.catch_class = ec->data.catch_class;
1361 ei->try_start = code + decode_value (p, &p);
1362 ei->try_end = code + decode_value (p, &p);
1363 ei->handler_start = code + decode_value (p, &p);
1367 jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
1369 jinfo->code_size = code_len;
1370 jinfo->used_regs = used_int_regs;
1371 jinfo->method = method;
1372 jinfo->code_start = code;
1373 jinfo->domain_neutral = 0;
1375 if (has_generic_jit_info) {
1376 MonoGenericJitInfo *gi;
1378 jinfo->has_generic_jit_info = 1;
1380 gi = mono_jit_info_get_generic_jit_info (jinfo);
1383 gi->has_this = decode_value (p, &p);
1384 gi->this_reg = decode_value (p, &p);
1385 gi->this_offset = decode_value (p, &p);
1387 /* This currently contains no data */
1388 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1390 jinfo->method = decode_method_ref_2 (aot_module, p, &p);
1393 /* Load debug info */
1394 buf_len = decode_value (p, &p);
1395 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1401 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
1404 int pos, left, right, offset, offset1, offset2, last_offset, new_offset;
1405 int page_index, method_index, table_len, is_wrapper;
1407 MonoAotModule *amodule = image->aot_module;
1410 guint8 *code, *ex_info, *p;
1411 guint32 *table, *ptr;
1417 if (domain != mono_get_root_domain ())
1421 offset = (guint8*)addr - amodule->code;
1423 /* First search through the index */
1424 ptr = amodule->method_order;
1429 if (*ptr == 0xffffff)
1433 while (*ptr != 0xffffff) {
1434 guint32 method_index = ptr [0];
1435 new_offset = amodule->code_offsets [method_index];
1437 if (offset >= last_offset && offset < new_offset) {
1443 last_offset = new_offset;
1447 /* Skip rest of index */
1448 while (*ptr != 0xffffff)
1453 table_len = amodule->method_order_end - table;
1455 g_assert (table <= amodule->method_order_end);
1458 left = (page_index * 1024);
1459 right = left + 1024;
1461 if (right > table_len)
1464 offset1 = amodule->code_offsets [table [left]];
1465 g_assert (offset1 <= offset);
1467 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1470 //printf ("Not found in index: 0x%x\n", offset);
1475 /* Binary search inside the method_order table to find the method */
1477 pos = (left + right) / 2;
1479 g_assert (table + pos <= amodule->method_order_end);
1481 //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]]);
1483 offset1 = amodule->code_offsets [table [pos]];
1484 if (table + pos + 1 >= amodule->method_order_end)
1485 offset2 = amodule->code_end - amodule->code;
1487 offset2 = amodule->code_offsets [table [pos + 1]];
1489 if (offset < offset1)
1491 else if (offset >= offset2)
1497 method_index = table [pos];
1499 /* Might be a wrapper/extra method */
1500 if (amodule->extra_methods) {
1502 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
1509 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
1511 * This is hit for extra methods which are called directly, so they are
1512 * not in amodule->extra_methods.
1514 table_len = amodule->extra_method_info_offsets [0];
1515 table = amodule->extra_method_info_offsets + 1;
1522 pos = ((left + right) / 2);
1524 g_assert (pos < table_len);
1526 if (table [pos * 2] < method_index)
1528 else if (table [pos * 2] > method_index)
1534 p = amodule->extra_method_info + table [(pos * 2) + 1];
1535 is_wrapper = decode_value (p, &p);
1536 g_assert (!is_wrapper);
1537 method = decode_method_ref_2 (amodule, p, &p);
1540 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
1541 method = mono_get_method (image, token, NULL);
1548 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1550 code = &amodule->code [amodule->code_offsets [method_index]];
1551 ex_info = &amodule->ex_info [amodule->ex_info_offsets [method_index]];
1553 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code);
1555 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
1556 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
1558 /* Add it to the normal JitInfo tables */
1559 mono_jit_info_table_add (domain, jinfo);
1564 /* Keep it in sync with the version in aot-compiler.c */
1565 static inline gboolean
1566 is_shared_got_patch (MonoJumpInfo *patch_info)
1568 switch (patch_info->type) {
1569 case MONO_PATCH_INFO_VTABLE:
1570 case MONO_PATCH_INFO_CLASS:
1571 case MONO_PATCH_INFO_IID:
1572 case MONO_PATCH_INFO_ADJUSTED_IID:
1573 case MONO_PATCH_INFO_FIELD:
1574 case MONO_PATCH_INFO_SFLDA:
1575 case MONO_PATCH_INFO_DECLSEC:
1576 case MONO_PATCH_INFO_LDTOKEN:
1577 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1578 case MONO_PATCH_INFO_RVA:
1579 case MONO_PATCH_INFO_METHODCONST:
1587 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
1595 case MONO_PATCH_INFO_METHOD:
1596 case MONO_PATCH_INFO_METHOD_JUMP:
1597 case MONO_PATCH_INFO_ICALL_ADDR:
1598 case MONO_PATCH_INFO_METHOD_RGCTX: {
1601 gboolean no_aot_trampoline;
1603 image = decode_method_ref (aot_module, &token, &method, &no_aot_trampoline, p, &p);
1607 #ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
1608 if (!method && !mono_aot_only && !no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (token) == MONO_TABLE_METHOD)) {
1609 ji->data.target = mono_create_jit_trampoline_from_token (image, token);
1610 ji->type = MONO_PATCH_INFO_ABS;
1614 ji->data.method = method;
1616 ji->data.method = mono_get_method (image, token, NULL);
1617 g_assert (ji->data.method);
1618 mono_class_init (ji->data.method->klass);
1621 ji->data.method = mono_get_method (image, token, NULL);
1622 g_assert (ji->data.method);
1623 mono_class_init (ji->data.method->klass);
1628 case MONO_PATCH_INFO_INTERNAL_METHOD:
1629 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1630 guint32 len = decode_value (p, &p);
1632 ji->data.name = (char*)p;
1636 case MONO_PATCH_INFO_METHODCONST:
1638 ji->data.method = decode_method_ref_2 (aot_module, p, &p);
1639 if (!ji->data.method)
1642 case MONO_PATCH_INFO_VTABLE:
1643 case MONO_PATCH_INFO_CLASS:
1644 case MONO_PATCH_INFO_IID:
1645 case MONO_PATCH_INFO_ADJUSTED_IID:
1647 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1648 if (!ji->data.klass)
1651 case MONO_PATCH_INFO_CLASS_INIT:
1652 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1653 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1654 if (!ji->data.klass)
1657 case MONO_PATCH_INFO_IMAGE:
1658 ji->data.image = load_image (aot_module, decode_value (p, &p));
1659 if (!ji->data.image)
1662 case MONO_PATCH_INFO_FIELD:
1663 case MONO_PATCH_INFO_SFLDA:
1665 ji->data.field = decode_field_info (aot_module, p, &p);
1666 if (!ji->data.field)
1669 case MONO_PATCH_INFO_SWITCH:
1670 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
1671 ji->data.table->table_size = decode_value (p, &p);
1672 table = g_new (gpointer, ji->data.table->table_size);
1673 ji->data.table->table = (MonoBasicBlock**)table;
1674 for (i = 0; i < ji->data.table->table_size; i++)
1675 table [i] = (gpointer)(gssize)decode_value (p, &p);
1677 case MONO_PATCH_INFO_R4: {
1680 ji->data.target = mono_mempool_alloc0 (mp, sizeof (float));
1681 val = decode_value (p, &p);
1682 *(float*)ji->data.target = *(float*)&val;
1685 case MONO_PATCH_INFO_R8: {
1688 ji->data.target = mono_mempool_alloc0 (mp, sizeof (double));
1690 val [0] = decode_value (p, &p);
1691 val [1] = decode_value (p, &p);
1692 *(double*)ji->data.target = *(double*)val;
1695 case MONO_PATCH_INFO_LDSTR:
1696 image = load_image (aot_module, decode_value (p, &p));
1699 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
1701 case MONO_PATCH_INFO_RVA:
1702 case MONO_PATCH_INFO_DECLSEC:
1703 case MONO_PATCH_INFO_LDTOKEN:
1704 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1706 image = load_image (aot_module, decode_value (p, &p));
1709 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
1711 ji->data.token->has_context = decode_value (p, &p);
1712 if (ji->data.token->has_context) {
1713 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
1718 case MONO_PATCH_INFO_EXC_NAME:
1719 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1720 if (!ji->data.klass)
1722 ji->data.name = ji->data.klass->name;
1724 case MONO_PATCH_INFO_METHOD_REL:
1725 ji->data.offset = decode_value (p, &p);
1727 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1728 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1730 case MONO_PATCH_INFO_RGCTX_FETCH: {
1732 MonoJumpInfoRgctxEntry *entry;
1734 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
1735 entry->method = decode_method_ref_2 (aot_module, p, &p);
1736 entry->in_mrgctx = decode_value (p, &p);
1737 entry->info_type = decode_value (p, &p);
1738 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
1739 entry->data->type = decode_value (p, &p);
1741 res = decode_patch (aot_module, mp, entry->data, p, &p);
1744 ji->data.rgctx_entry = entry;
1748 g_warning ("unhandled type %d", ji->type);
1749 g_assert_not_reached ();
1761 decode_got_entry (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf, guint32 *got_offset)
1767 if (is_shared_got_patch (ji)) {
1768 *got_offset = decode_value (p, &p);
1770 if (aot_module->got [*got_offset]) {
1771 /* Already loaded */
1772 //printf ("HIT!\n");
1774 shared_p = aot_module->got_info + aot_module->got_info_offsets [*got_offset];
1776 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
1781 res = decode_patch (aot_module, mp, ji, p, &p);
1790 static MonoJumpInfo*
1791 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
1792 guint32 got_index, guint32 **got_slots,
1793 guint8 *buf, guint8 **endbuf)
1795 MonoJumpInfo *patches;
1796 MonoJumpInfo *patch_info = NULL;
1798 guint32 last_offset;
1803 /* First load the type + offset table */
1805 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
1807 for (pindex = 0; pindex < n_patches; ++pindex) {
1808 MonoJumpInfo *ji = &patches [pindex];
1813 //printf ("T: %d O: %d.\n", ji->type, ji->ip.i);
1814 ji->next = patch_info;
1818 *got_slots = g_malloc (sizeof (guint32) * n_patches);
1819 memset (*got_slots, 0xff, sizeof (guint32) * n_patches);
1821 /* Then load the other data */
1822 for (pindex = 0; pindex < n_patches; ++pindex) {
1823 MonoJumpInfo *ji = &patches [pindex];
1825 if (!decode_got_entry (aot_module, mp, ji, p, &p, (*got_slots) + pindex))
1828 if ((*got_slots) [pindex] == 0xffffffff)
1829 (*got_slots) [pindex] = got_index ++;
1836 g_free (*got_slots);
1843 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
1846 * Jump addresses cannot be patched by the trampoline code since it
1847 * does not have access to the caller's address. Instead, we collect
1848 * the addresses of the GOT slots pointing to a method, and patch
1849 * them after the method has been compiled.
1851 MonoJitDomainInfo *info = domain_jit_info (domain);
1854 mono_domain_lock (domain);
1855 if (!info->jump_target_got_slot_hash)
1856 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
1857 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
1858 list = g_slist_prepend (list, got_slot);
1859 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
1860 mono_domain_unlock (domain);
1866 * Load the method identified by METHOD_INDEX from the AOT image. Return a
1867 * pointer to the native code of the method, or NULL if not found.
1868 * METHOD might not be set if the caller only has the image/token info.
1871 load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
1874 MonoJumpInfo *patch_info = NULL;
1876 int i, pindex, got_index = 0, n_patches, used_strings;
1877 gboolean non_got_patches, keep_patches = TRUE;
1878 guint8 *p, *ex_info;
1879 MonoJitInfo *jinfo = NULL;
1880 guint8 *code, *info;
1882 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
1885 if ((domain != mono_get_root_domain ()) && (!(aot_module->opts & MONO_OPT_SHARED)))
1886 /* Non shared AOT code can't be used in other appdomains */
1889 if (aot_module->out_of_date)
1892 if (aot_module->code_offsets [method_index] == 0xffffffff) {
1893 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
1897 method = mono_get_method (image, token, NULL);
1898 full_name = mono_method_full_name (method, TRUE);
1899 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
1905 code = &aot_module->code [aot_module->code_offsets [method_index]];
1906 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
1909 if (!aot_module->methods_loaded)
1910 aot_module->methods_loaded = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 1);
1913 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
1916 if (mono_last_aot_method != -1) {
1917 if (mono_jit_stats.methods_aot > mono_last_aot_method)
1920 if (method && mono_jit_stats.methods_aot == mono_last_aot_method)
1921 printf ("LAST AOT METHOD: %s.%s.%s.\n", method->klass->name_space, method->klass->name, method->name);
1927 klass = method->klass;
1928 decode_klass_ref (aot_module, p, &p);
1930 klass = decode_klass_ref (aot_module, p, &p);
1933 if (!use_loaded_code) {
1937 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (token) - 1]];
1938 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
1941 mono_domain_lock (domain);
1942 code2 = mono_code_manager_reserve (domain->code_mp, jinfo->code_size);
1943 mono_domain_unlock (domain);
1944 memcpy (code2, code, jinfo->code_size);
1945 mono_arch_flush_icache (code2, jinfo->code_size);
1949 if (aot_module->opts & MONO_OPT_SHARED)
1950 used_strings = decode_value (p, &p);
1954 for (i = 0; i < used_strings; i++) {
1955 guint token = decode_value (p, &p);
1956 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (token));
1959 if (aot_module->opts & MONO_OPT_SHARED)
1960 keep_patches = FALSE;
1962 n_patches = decode_value (p, &p);
1964 keep_patches = FALSE;
1967 MonoJumpInfo *patches;
1973 mp = mono_mempool_new ();
1975 got_index = decode_value (p, &p);
1977 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
1978 if (patches == NULL)
1981 non_got_patches = FALSE;
1982 for (pindex = 0; pindex < n_patches; ++pindex) {
1983 MonoJumpInfo *ji = &patches [pindex];
1985 if (is_got_patch (ji->type)) {
1986 if (!aot_module->got [got_slots [pindex]]) {
1987 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
1988 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
1989 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
1991 ji->type = MONO_PATCH_INFO_NONE;
1994 non_got_patches = TRUE;
1996 if (non_got_patches) {
1998 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (token) - 1]];
1999 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2002 mono_arch_flush_icache (code, jinfo->code_size);
2003 make_writable (code, jinfo->code_size);
2004 mono_arch_patch_code (method, domain, code, patch_info, TRUE);
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 (!method && klass)
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 ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2192 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2193 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2194 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2197 g_assert (klass->inited);
2199 /* Find method index */
2200 if (method->is_inflated && mono_method_is_generic_sharable_impl (method, FALSE)) {
2201 method = mono_method_get_declaring_generic_method (method);
2202 method_index = mono_metadata_token_index (method->token) - 1;
2203 } else if (method->is_inflated || !method->token) {
2204 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
2206 code = g_hash_table_lookup (amodule->method_to_code, method);
2211 method_index = find_extra_method (method, &amodule);
2212 if (method_index == 0xffffff)
2215 /* Needed by find_jit_info */
2217 if (!amodule->extra_methods)
2218 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2219 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
2223 method_index = mono_metadata_token_index (method->token) - 1;
2226 return load_method (domain, amodule, klass->image, method, method->token, method_index);
2230 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2234 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2236 MonoAotModule *aot_module = image->aot_module;
2242 method_index = mono_metadata_token_index (token) - 1;
2244 return load_method (domain, aot_module, image, NULL, token, method_index);
2250 } IsGotEntryUserData;
2253 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
2255 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
2256 MonoAotModule *aot_module = (MonoAotModule*)value;
2258 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->got_size)))
2263 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2265 IsGotEntryUserData user_data;
2270 user_data.addr = addr;
2271 user_data.res = FALSE;
2273 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
2276 return user_data.res;
2281 MonoAotModule *module;
2282 } FindAotModuleUserData;
2285 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
2287 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
2288 MonoAotModule *aot_module = (MonoAotModule*)value;
2290 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
2291 data->module = aot_module;
2294 static inline MonoAotModule*
2295 find_aot_module (guint8 *code)
2297 FindAotModuleUserData user_data;
2302 /* Reading these need no locking */
2303 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
2306 user_data.addr = code;
2307 user_data.module = NULL;
2310 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
2313 return user_data.module;
2317 * mono_aot_set_make_unreadable:
2319 * Set whenever to make all mmaped memory unreadable. In conjuction with a
2320 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
2323 mono_aot_set_make_unreadable (gboolean unreadable)
2325 make_unreadable = unreadable;
2329 MonoAotModule *module;
2334 find_map (gpointer key, gpointer value, gpointer user_data)
2336 MonoAotModule *module = (MonoAotModule*)value;
2337 FindMapUserData *data = (FindMapUserData*)user_data;
2340 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
2341 data->module = module;
2344 static MonoAotModule*
2345 find_module_for_addr (void *ptr)
2347 FindMapUserData data;
2349 if (!make_unreadable)
2353 data.ptr = (guint8*)ptr;
2356 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
2363 * mono_aot_is_pagefault:
2365 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
2366 * within memory allocated by this module.
2369 mono_aot_is_pagefault (void *ptr)
2371 if (!make_unreadable)
2374 return find_module_for_addr (ptr) != NULL;
2378 * mono_aot_handle_pagefault:
2380 * Handle a pagefault caused by an unreadable page by making it readable again.
2383 mono_aot_handle_pagefault (void *ptr)
2385 #ifndef PLATFORM_WIN32
2386 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), PAGESIZE);
2390 res = mprotect (start, PAGESIZE, PROT_READ|PROT_WRITE|PROT_EXEC);
2391 g_assert (res == 0);
2402 printf ("\nNative stacktrace:\n\n");
2404 size = backtrace (array, 256);
2405 names = backtrace_symbols (array, size);
2406 for (i =0; i < size; ++i) {
2407 printf ("\t%s\n", names [i]);
2417 * mono_aot_plt_resolve:
2419 * This function is called by the entries in the PLT to resolve the actual method that
2420 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2423 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2425 #ifdef MONO_ARCH_AOT_SUPPORTED
2426 guint8 *p, *target, *plt_entry;
2428 MonoAotModule *module = (MonoAotModule*)aot_module;
2432 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2434 p = &module->plt_info [plt_info_offset];
2436 ji.type = decode_value (p, &p);
2438 mp = mono_mempool_new_size (512);
2439 res = decode_patch (module, mp, &ji, p, &p);
2440 // FIXME: Error handling (how ?)
2443 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
2445 mono_mempool_destroy (mp);
2447 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2448 plt_entry = mono_aot_get_plt_entry (code);
2449 g_assert (plt_entry);
2450 mono_arch_patch_plt_entry (plt_entry, target);
2454 g_assert_not_reached ();
2462 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2463 * method in the module is loaded to avoid committing memory by writing to it.
2464 * LOCKING: Assumes the AOT lock is held.
2467 init_plt (MonoAotModule *info)
2469 #ifdef MONO_ARCH_AOT_SUPPORTED
2471 guint8 *buf = info->plt;
2472 #elif defined(__x86_64__)
2474 #elif defined(__arm__)
2479 if (info->plt_inited)
2482 tramp = mono_create_specific_trampoline (info, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
2485 /* Initialize the first PLT entry */
2486 make_writable (info->plt, info->plt_end - info->plt);
2487 x86_jump_code (buf, tramp);
2488 #elif defined(__x86_64__) || defined(__arm__)
2490 * Initialize the entries in the plt_jump_table to point to the default targets.
2492 n_entries = info->plt_jump_table_size / sizeof (gpointer);
2494 /* The first entry points to the AOT trampoline */
2495 ((gpointer*)info->plt_jump_table)[0] = tramp;
2496 for (i = 1; i < n_entries; ++i)
2497 /* All the default entries point to the first entry */
2498 ((gpointer*)info->plt_jump_table)[i] = info->plt;
2500 g_assert_not_reached ();
2503 info->plt_inited = TRUE;
2508 * mono_aot_get_plt_entry:
2510 * Return the address of the PLT entry called by the code at CODE if exists.
2513 mono_aot_get_plt_entry (guint8 *code)
2515 MonoAotModule *aot_module = find_aot_module (code);
2516 #if defined(__arm__)
2523 #if defined(__i386__) || defined(__x86_64__)
2524 if (code [-5] == 0xe8) {
2525 guint32 disp = *(guint32*)(code - 4);
2526 guint8 *target = code + disp;
2528 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2531 #elif defined(__arm__)
2532 ins = ((guint32*)(gpointer)code) [-1];
2534 /* Should be a 'bl' */
2535 if ((((ins >> 25) & 0x7) == 0x5) && (((ins >> 24) & 0x1) == 0x1)) {
2536 gint32 disp = ((gint32)ins) & 0xffffff;
2537 guint8 *target = code - 4 + 8 + (disp * 4);
2539 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2543 g_assert_not_reached ();
2550 * mono_aot_get_plt_info_offset:
2552 * Return the PLT info offset belonging to the plt entry called by CODE.
2555 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2557 guint8 *plt_entry = mono_aot_get_plt_entry (code);
2559 g_assert (plt_entry);
2561 /* The offset is embedded inside the code after the plt entry */
2562 #if defined(__i386__)
2563 return *(guint32*)(plt_entry + 5);
2564 #elif defined(__x86_64__)
2565 return *(guint32*)(plt_entry + 6);
2566 #elif defined(__arm__)
2567 /* The offset is stored as the 5th word of the plt entry */
2568 return ((guint32*)plt_entry) [4];
2570 g_assert_not_reached ();
2576 load_named_code (MonoAotModule *amodule, const char *name)
2580 int n_patches, got_index, pindex;
2586 symbol = g_strdup_printf ("%s", name);
2587 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
2590 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
2592 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
2596 symbol = g_strdup_printf ("%s_p", name);
2597 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
2600 /* Nothing to patch */
2603 /* Similar to mono_aot_load_method () */
2605 n_patches = decode_value (p, &p);
2608 MonoJumpInfo *patches;
2611 mp = mono_mempool_new ();
2613 got_index = decode_value (p, &p);
2615 patches = load_patch_info (amodule, mp, n_patches, got_index, &got_slots, p, &p);
2618 for (pindex = 0; pindex < n_patches; ++pindex) {
2619 MonoJumpInfo *ji = &patches [pindex];
2623 * When this code is executed, the runtime may not yet initalized, so
2624 * resolve the patch info by hand.
2626 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
2627 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
2628 target = mono_get_lmf_addr;
2629 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
2630 target = mono_thread_force_interruption_checkpoint;
2631 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
2632 target = mono_exception_from_token;
2633 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
2634 target = mono_get_throw_exception ();
2636 } else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
2637 target = mono_amd64_throw_exception;
2640 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
2641 target = mono_arm_throw_exception;
2643 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
2644 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
2645 target = (gpointer)mono_get_trampoline_func (tramp_type2);
2646 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
2647 guint32 slot = atoi (ji->data.name + strlen ("specific_trampoline_lazy_fetch_"));
2648 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
2650 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
2651 g_assert_not_reached ();
2655 /* Hopefully the code doesn't have patches which need method or
2658 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
2661 amodule->got [got_slots [pindex]] = target;
2666 mono_mempool_destroy (mp);
2673 * Return the piece of code identified by NAME from the mscorlib AOT file.
2676 mono_aot_get_named_code (const char *name)
2679 MonoAotModule *amodule;
2681 image = mono_defaults.corlib;
2684 amodule = image->aot_module;
2687 return load_named_code (amodule, name);
2691 * Return a specific trampoline from the AOT file.
2694 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2696 MonoAotModule *amodule;
2697 int index, tramp_size;
2698 guint8 *code, *tramp;
2699 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
2701 /* Currently, we keep all trampolines in the mscorlib AOT image */
2702 image = mono_defaults.corlib;
2707 amodule = image->aot_module;
2710 if (amodule->trampoline_index == amodule->num_trampolines)
2711 g_error ("Ran out of trampolines in '%s' (%d)\n", image->name, amodule->num_trampolines);
2713 index = amodule->trampoline_index ++;
2717 if (!generic_trampolines [tramp_type]) {
2720 symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
2721 generic_trampolines [tramp_type] = mono_aot_get_named_code (symbol);
2725 tramp = generic_trampolines [tramp_type];
2728 amodule->got [amodule->first_trampoline_got_offset + (index *2)] = tramp;
2729 amodule->got [amodule->first_trampoline_got_offset + (index *2) + 1] = arg1;
2733 #elif defined(__arm__)
2737 g_assert_not_reached ();
2740 code = amodule->trampolines + (index * tramp_size);
2742 *code_len = tramp_size;
2748 mono_aot_get_unbox_trampoline (MonoMethod *method)
2750 guint32 method_index = mono_metadata_token_index (method->token) - 1;
2751 MonoAotModule *amodule;
2755 amodule = method->klass->image->aot_module;
2758 symbol = g_strdup_printf ("unbox_trampoline_%d", method_index);
2759 code = load_named_code (amodule, symbol);
2765 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2770 symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", slot);
2771 code = load_named_code (mono_defaults.corlib->aot_module, symbol);
2777 * mono_aot_get_n_pagefaults:
2779 * Return the number of times handle_pagefault is called.
2782 mono_aot_get_n_pagefaults (void)
2784 return n_pagefaults;
2791 mono_aot_init (void)
2796 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2802 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2808 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2814 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2820 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2826 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2832 mono_aot_is_pagefault (void *ptr)
2838 mono_aot_set_make_unreadable (gboolean unreadable)
2843 mono_aot_get_n_pagefaults (void)
2849 mono_aot_handle_pagefault (void *ptr)
2854 mono_aot_get_plt_entry (guint8 *code)
2860 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2866 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2872 mono_aot_create_specific_trampolines (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2874 g_assert_not_reached ();
2879 mono_aot_get_named_code (char *name)
2881 g_assert_not_reached ();
2886 mono_aot_get_unbox_trampoline (MonoMethod *method)
2888 g_assert_not_reached ();