2 * aot-runtime.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
12 #include <sys/types.h>
18 #ifdef HAVE_SYS_MMAN_H
27 #ifdef HAVE_EXECINFO_H
34 #ifdef HAVE_SYS_WAIT_H
35 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
38 #include <mono/metadata/tabledefs.h>
39 #include <mono/metadata/class.h>
40 #include <mono/metadata/object.h>
41 #include <mono/metadata/tokentype.h>
42 #include <mono/metadata/appdomain.h>
43 #include <mono/metadata/debug-helpers.h>
44 #include <mono/metadata/assembly.h>
45 #include <mono/metadata/metadata-internals.h>
46 #include <mono/metadata/marshal.h>
47 #include <mono/metadata/gc-internal.h>
48 #include <mono/metadata/monitor.h>
49 #include <mono/metadata/threads-types.h>
50 #include <mono/utils/mono-logger.h>
51 #include <mono/utils/mono-mmap.h>
52 #include "mono/utils/mono-compiler.h"
53 #include <mono/utils/mono-counters.h>
61 #define SHARED_EXT ".dll"
62 #elif (defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)
63 #define SHARED_EXT ".dylib"
65 #define SHARED_EXT ".so"
68 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
69 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
71 typedef struct MonoAotModule {
73 /* Optimization flags used to compile the module */
75 /* 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 /* Maps pointers into the method info to the methods themselves */
82 GHashTable *method_ref_to_method;
83 MonoAssemblyName *image_names;
85 MonoAssembly *assembly;
86 MonoImage **image_table;
87 guint32 image_table_len;
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;
114 /* Points to the trampolines */
115 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
116 /* The first unused trampoline of each kind */
117 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
119 MonoAotFileInfo info;
125 static GHashTable *aot_modules;
126 #define mono_aot_lock() EnterCriticalSection (&aot_mutex)
127 #define mono_aot_unlock() LeaveCriticalSection (&aot_mutex)
128 static CRITICAL_SECTION aot_mutex;
131 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
132 * AOT modules registered by mono_aot_register_module ().
134 static GHashTable *static_aot_modules;
137 * Whenever to AOT compile loaded assemblies on demand and store them in
138 * a cache under $HOME/.mono/aot-cache.
140 static gboolean use_aot_cache = FALSE;
143 * Whenever to spawn a new process to AOT a file or do it in-process. Only relevant if
144 * use_aot_cache is TRUE.
146 static gboolean spawn_compiler = TRUE;
149 static gint32 mono_last_aot_method = -1;
151 static gboolean make_unreadable = FALSE;
152 static guint32 name_table_accesses = 0;
154 /* Used to speed-up find_aot_module () */
155 static gsize aot_code_low_addr = (gssize)-1;
156 static gsize aot_code_high_addr = 0;
159 init_plt (MonoAotModule *info);
161 /*****************************************************/
163 /*****************************************************/
166 load_image (MonoAotModule *module, int index)
168 MonoAssembly *assembly;
169 MonoImageOpenStatus status;
171 g_assert (index < module->image_table_len);
173 if (module->image_table [index])
174 return module->image_table [index];
175 if (module->out_of_date)
178 assembly = mono_assembly_load (&module->image_names [index], NULL, &status);
180 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);
181 module->out_of_date = TRUE;
185 if (strcmp (assembly->image->guid, module->image_guids [index])) {
186 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);
187 module->out_of_date = TRUE;
191 module->image_table [index] = assembly->image;
192 return assembly->image;
197 decode_value (guint8 *ptr, guint8 **rptr)
202 if ((b & 0x80) == 0){
205 } else if ((b & 0x40) == 0){
206 len = ((b & 0x3f) << 8 | ptr [1]);
208 } else if (b != 0xff) {
209 len = ((b & 0x1f) << 24) |
216 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
222 //printf ("DECODE: %d.\n", len);
227 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
230 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
232 static MonoGenericInst*
233 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
236 MonoType **type_argv;
237 MonoGenericInst *inst;
240 type_argc = decode_value (p, &p);
241 type_argv = g_new0 (MonoType*, type_argc);
243 for (i = 0; i < type_argc; ++i) {
244 MonoClass *pclass = decode_klass_ref (module, p, &p);
249 type_argv [i] = &pclass->byval_arg;
252 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
261 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
263 gboolean has_class_inst, has_method_inst;
266 has_class_inst = decode_value (p, &p);
267 if (has_class_inst) {
268 ctx->class_inst = decode_generic_inst (module, p, &p);
269 if (!ctx->class_inst)
272 has_method_inst = decode_value (p, &p);
273 if (has_method_inst) {
274 ctx->method_inst = decode_generic_inst (module, p, &p);
275 if (!ctx->method_inst)
284 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
287 MonoClass *klass, *eklass;
291 token = decode_value (p, &p);
296 if (mono_metadata_token_table (token) == 0) {
297 image = load_image (module, decode_value (p, &p));
300 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF + token);
301 } else if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
302 if (token == MONO_TOKEN_TYPE_SPEC) {
303 MonoTypeEnum type = decode_value (p, &p);
305 if (type == MONO_TYPE_GENERICINST) {
307 MonoGenericContext ctx;
310 gclass = decode_klass_ref (module, p, &p);
311 g_assert (gclass->generic_container);
313 memset (&ctx, 0, sizeof (ctx));
314 ctx.class_inst = decode_generic_inst (module, p, &p);
317 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
318 klass = mono_class_from_mono_type (type);
319 mono_metadata_free_type (type);
320 } else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
322 MonoGenericContainer *container;
324 int num = decode_value (p, &p);
325 gboolean is_method = decode_value (p, &p);
328 MonoMethod *method_def;
329 g_assert (type == MONO_TYPE_MVAR);
330 method_def = decode_method_ref_2 (module, p, &p);
334 container = mono_method_get_generic_container (method_def);
336 MonoClass *class_def;
337 g_assert (type == MONO_TYPE_VAR);
338 class_def = decode_klass_ref (module, p, &p);
342 container = class_def->generic_container;
345 g_assert (container);
347 // FIXME: Memory management
348 t = g_new0 (MonoType, 1);
350 t->data.generic_param = mono_generic_container_get_param (container, num);
352 // FIXME: Maybe use types directly to avoid
353 // the overhead of creating MonoClass-es
354 klass = mono_class_from_mono_type (t);
358 g_assert_not_reached ();
361 image = load_image (module, decode_value (p, &p));
364 klass = mono_class_get (image, token);
366 } else if (token == MONO_TOKEN_TYPE_DEF) {
368 image = load_image (module, decode_value (p, &p));
371 rank = decode_value (p, &p);
372 eklass = decode_klass_ref (module, p, &p);
373 klass = mono_array_class_get (eklass, rank);
375 g_assert_not_reached ();
378 mono_class_init (klass);
384 static MonoClassField*
385 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
387 MonoClass *klass = decode_klass_ref (module, buf, &buf);
394 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
398 return mono_class_get_field (klass, token);
402 * can_method_ref_match_method:
404 * Determine if calling decode_method_ref_2 on P could return the same method as
405 * METHOD. This is an optimization to avoid calling decode_method_ref_2 () which
406 * would create MonoMethods which are not needed etc.
409 can_method_ref_match_method (MonoAotModule *module, guint8 *buf, MonoMethod *method)
412 guint32 image_index, value;
414 /* Keep this in sync with decode_method_ref () */
415 value = decode_value (p, &p);
416 image_index = value >> 24;
418 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
419 guint32 wrapper_type;
421 if (!method->wrapper_type)
424 wrapper_type = decode_value (p, &p);
426 if (method->wrapper_type != wrapper_type)
428 } else if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
429 if (method->wrapper_type)
439 * Decode a method reference, and return its image and token. This avoids loading
440 * metadata for the method if the caller does not need it. If the method has no token,
441 * then it is loaded from metadata and METHOD is set to the method instance.
444 decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, gboolean *no_aot_trampoline, guint8 *buf, guint8 **endbuf)
446 guint32 image_index, value;
447 MonoImage *image = NULL;
452 if (no_aot_trampoline)
453 *no_aot_trampoline = FALSE;
455 value = decode_value (p, &p);
456 image_index = value >> 24;
458 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
459 if (no_aot_trampoline)
460 *no_aot_trampoline = TRUE;
461 value = decode_value (p, &p);
462 image_index = value >> 24;
465 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
466 guint32 wrapper_type;
468 wrapper_type = decode_value (p, &p);
471 image = mono_defaults.corlib;
473 switch (wrapper_type) {
474 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
475 MonoMethod *m = decode_method_ref_2 (module, p, &p);
479 mono_class_init (m->klass);
480 *method = mono_marshal_get_remoting_invoke_with_check (m);
483 case MONO_WRAPPER_PROXY_ISINST: {
484 MonoClass *klass = decode_klass_ref (module, p, &p);
487 *method = mono_marshal_get_proxy_cancast (klass);
490 case MONO_WRAPPER_LDFLD:
491 case MONO_WRAPPER_LDFLDA:
492 case MONO_WRAPPER_STFLD:
493 case MONO_WRAPPER_ISINST: {
494 MonoClass *klass = decode_klass_ref (module, p, &p);
497 if (wrapper_type == MONO_WRAPPER_LDFLD)
498 *method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
499 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
500 *method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
501 else if (wrapper_type == MONO_WRAPPER_STFLD)
502 *method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
503 else if (wrapper_type == MONO_WRAPPER_ISINST)
504 *method = mono_marshal_get_isinst (klass);
506 g_assert_not_reached ();
509 case MONO_WRAPPER_LDFLD_REMOTE:
510 *method = mono_marshal_get_ldfld_remote_wrapper (NULL);
512 case MONO_WRAPPER_STFLD_REMOTE:
513 *method = mono_marshal_get_stfld_remote_wrapper (NULL);
515 case MONO_WRAPPER_ALLOC: {
516 int atype = decode_value (p, &p);
518 *method = mono_gc_get_managed_allocator_by_type (atype);
521 case MONO_WRAPPER_STELEMREF:
522 *method = mono_marshal_get_stelemref ();
524 case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
525 MonoMethod *m = decode_method_ref_2 (module, p, &p);
529 *method = mono_marshal_get_static_rgctx_invoke (m);
532 case MONO_WRAPPER_SYNCHRONIZED: {
533 MonoMethod *m = decode_method_ref_2 (module, p, &p);
537 *method = mono_marshal_get_synchronized_wrapper (m);
540 case MONO_WRAPPER_UNKNOWN: {
541 MonoMethodDesc *desc;
542 MonoMethod *orig_method;
543 int subtype = decode_value (p, &p);
545 if (subtype == MONO_AOT_WRAPPER_MONO_ENTER)
546 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
547 else if (subtype == MONO_AOT_WRAPPER_MONO_EXIT)
548 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
550 g_assert_not_reached ();
551 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
552 g_assert (orig_method);
553 mono_method_desc_free (desc);
554 *method = mono_monitor_get_fast_path (orig_method);
557 case MONO_WRAPPER_RUNTIME_INVOKE: {
559 MonoMethod *m = decode_method_ref_2 (module, p, &p);
563 *method = mono_marshal_get_runtime_invoke (m, FALSE);
567 g_assert_not_reached ();
569 } else if (image_index == MONO_AOT_METHODREF_WRAPPER_NAME) {
570 /* Can't decode these */
571 g_assert_not_reached ();
572 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
573 image_index = decode_value (p, &p);
574 *token = decode_value (p, &p);
576 image = load_image (module, image_index);
579 } else if (image_index == MONO_AOT_METHODREF_GINST) {
581 MonoGenericContext ctx;
584 * These methods do not have a token which resolves them, so we
585 * resolve them immediately.
587 klass = decode_klass_ref (module, p, &p);
591 image_index = decode_value (p, &p);
592 *token = decode_value (p, &p);
594 image = load_image (module, image_index);
598 *method = mono_get_method_full (image, *token, NULL, NULL);
602 memset (&ctx, 0, sizeof (ctx));
604 if (FALSE && klass->generic_class) {
605 ctx.class_inst = klass->generic_class->context.class_inst;
606 ctx.method_inst = NULL;
608 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
611 memset (&ctx, 0, sizeof (ctx));
613 if (!decode_generic_context (module, &ctx, p, &p))
616 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
617 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
621 klass = decode_klass_ref (module, p, &p);
624 method_type = decode_value (p, &p);
626 switch (method_type) {
628 *method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
631 *method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
634 *method = mono_class_get_method_from_name (klass, "Get", -1);
637 *method = mono_class_get_method_from_name (klass, "Address", -1);
640 *method = mono_class_get_method_from_name (klass, "Set", -1);
643 g_assert_not_reached ();
646 g_assert (image_index < MONO_AOT_METHODREF_MIN);
647 *token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
649 image = load_image (module, image_index);
660 * decode_method_ref_2:
662 * Similar to decode_method_ref, but resolve and return the method itself.
665 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
669 MonoImage *image = decode_method_ref (module, &token, &method, NULL, buf, endbuf);
675 method = mono_get_method (image, token, NULL);
681 make_writable (guint8* addr, guint32 len)
687 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
689 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1));
690 pages = (addr + len - page_start + mono_pagesize () - 1) / mono_pagesize ();
692 err = mono_mprotect (page_start, pages * mono_pagesize (), MONO_MMAP_READ | MONO_MMAP_WRITE | MONO_MMAP_EXEC);
697 create_cache_structure (void)
703 home = g_get_home_dir ();
707 tmp = g_build_filename (home, ".mono", NULL);
708 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
709 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
710 #ifdef PLATFORM_WIN32
713 err = mkdir (tmp, 0777);
716 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
722 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
723 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
724 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
725 #ifdef PLATFORM_WIN32
728 err = mkdir (tmp, 0777);
731 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
740 * load_aot_module_from_cache:
742 * Experimental code to AOT compile loaded assemblies on demand.
745 * - Add environment variable MONO_AOT_CACHE_OPTIONS
746 * - Add options for controlling the cache size
747 * - Handle full cache by deleting old assemblies lru style
748 * - Add options for excluding assemblies during development
749 * - Maybe add a threshold after an assembly is AOT compiled
750 * - invoking a new mono process is a security risk
751 * - recompile the AOT module if one of its dependencies changes
754 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
756 char *fname, *cmd, *tmp2, *aot_options;
765 if (assembly->image->dynamic)
768 create_cache_structure ();
770 home = g_get_home_dir ();
772 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
773 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
777 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
778 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
781 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
783 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
785 aot_options = g_strdup_printf ("outfile=%s", fname);
787 if (spawn_compiler) {
788 /* FIXME: security */
789 /* FIXME: Has to pass the assembly loading path to the child process */
790 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
792 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
794 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
796 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
797 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
799 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
806 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
808 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
810 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
814 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
816 g_free (aot_options);
823 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
829 for (i = 0; globals [i]; i+= 2) {
830 if (strcmp (globals [i], name) == 0) {
831 *value = globals [i + 1];
836 mono_dl_symbol (module, name, value);
841 load_aot_module (MonoAssembly *assembly, gpointer user_data)
844 MonoAotModule *amodule;
846 gboolean usable = TRUE;
847 char *saved_guid = NULL;
848 char *aot_version = NULL;
849 char *runtime_version, *build_info;
850 char *opt_flags = NULL;
852 gboolean full_aot = FALSE;
853 MonoAotFileInfo *file_info = NULL;
857 if (mono_compile_aot)
860 if (assembly->image->aot_module)
862 * Already loaded. This can happen because the assembly loading code might invoke
863 * the assembly load hooks multiple times for the same assembly.
867 if (assembly->image->dynamic)
870 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS)
874 if (static_aot_modules)
875 globals = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
881 /* Statically linked AOT module */
883 aot_name = g_strdup_printf ("%s", assembly->aname.name);
884 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
887 sofile = load_aot_module_from_cache (assembly, &aot_name);
890 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
892 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
895 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
901 if (!sofile && !globals) {
903 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
910 find_symbol (sofile, globals, "mono_assembly_guid", (gpointer *) &saved_guid);
911 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &aot_version);
912 find_symbol (sofile, globals, "mono_aot_opt_flags", (gpointer *)&opt_flags);
913 find_symbol (sofile, globals, "mono_runtime_version", (gpointer *)&runtime_version);
914 find_symbol (sofile, globals, "mono_aot_got_addr", (gpointer *)&got_addr);
916 if (!aot_version || strcmp (aot_version, MONO_AOT_FILE_VERSION)) {
917 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);
921 if (!saved_guid || strcmp (assembly->image->guid, saved_guid)) {
922 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date.\n", aot_name);
927 build_info = mono_get_runtime_build_info ();
928 if (!runtime_version || ((strlen (runtime_version) > 0 && strcmp (runtime_version, build_info)))) {
929 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);
937 find_symbol (sofile, globals, "mono_aot_full_aot", (gpointer *)&full_aot_str);
939 if (full_aot_str && !strcmp (full_aot_str, "TRUE"))
943 if (mono_aot_only && !full_aot) {
944 fprintf (stderr, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name);
947 if (!mono_aot_only && full_aot) {
948 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled with --aot=full.\n", aot_name);
954 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name);
959 mono_dl_close (sofile);
960 assembly->image->aot_module = NULL;
964 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&file_info);
965 g_assert (file_info);
967 amodule = g_new0 (MonoAotModule, 1);
968 amodule->aot_name = aot_name;
969 amodule->assembly = assembly;
971 memcpy (&amodule->info, file_info, sizeof (*file_info));
973 amodule->got = *got_addr;
974 amodule->got [0] = assembly->image;
975 amodule->globals = globals;
976 amodule->sofile = sofile;
977 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
979 sscanf (opt_flags, "%d", &amodule->opts);
981 /* Read image table */
983 guint32 table_len, i;
986 find_symbol (sofile, globals, "mono_image_table", (gpointer *)&table);
989 table_len = *(guint32*)table;
990 table += sizeof (guint32);
991 amodule->image_table = g_new0 (MonoImage*, table_len);
992 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
993 amodule->image_guids = g_new0 (char*, table_len);
994 amodule->image_table_len = table_len;
995 for (i = 0; i < table_len; ++i) {
996 MonoAssemblyName *aname = &(amodule->image_names [i]);
998 aname->name = g_strdup (table);
999 table += strlen (table) + 1;
1000 amodule->image_guids [i] = g_strdup (table);
1001 table += strlen (table) + 1;
1003 aname->culture = g_strdup (table);
1004 table += strlen (table) + 1;
1005 memcpy (aname->public_key_token, table, strlen (table) + 1);
1006 table += strlen (table) + 1;
1008 table = ALIGN_PTR_TO (table, 8);
1009 aname->flags = *(guint32*)table;
1011 aname->major = *(guint32*)table;
1013 aname->minor = *(guint32*)table;
1015 aname->build = *(guint32*)table;
1017 aname->revision = *(guint32*)table;
1022 /* Read method and method_info tables */
1023 find_symbol (sofile, globals, "method_offsets", (gpointer*)&amodule->code_offsets);
1024 find_symbol (sofile, globals, "methods", (gpointer*)&amodule->code);
1025 find_symbol (sofile, globals, "methods_end", (gpointer*)&amodule->code_end);
1026 find_symbol (sofile, globals, "method_info_offsets", (gpointer*)&amodule->method_info_offsets);
1027 find_symbol (sofile, globals, "method_info", (gpointer*)&amodule->method_info);
1028 find_symbol (sofile, globals, "ex_info_offsets", (gpointer*)&amodule->ex_info_offsets);
1029 find_symbol (sofile, globals, "ex_info", (gpointer*)&amodule->ex_info);
1030 find_symbol (sofile, globals, "method_order", (gpointer*)&amodule->method_order);
1031 find_symbol (sofile, globals, "method_order_end", (gpointer*)&amodule->method_order_end);
1032 find_symbol (sofile, globals, "class_info", (gpointer*)&amodule->class_info);
1033 find_symbol (sofile, globals, "class_info_offsets", (gpointer*)&amodule->class_info_offsets);
1034 find_symbol (sofile, globals, "class_name_table", (gpointer *)&amodule->class_name_table);
1035 find_symbol (sofile, globals, "extra_method_table", (gpointer *)&amodule->extra_method_table);
1036 find_symbol (sofile, globals, "extra_method_info", (gpointer *)&amodule->extra_method_info);
1037 find_symbol (sofile, globals, "extra_method_info_offsets", (gpointer *)&amodule->extra_method_info_offsets);
1038 find_symbol (sofile, globals, "got_info", (gpointer*)&amodule->got_info);
1039 find_symbol (sofile, globals, "got_info_offsets", (gpointer*)&amodule->got_info_offsets);
1040 find_symbol (sofile, globals, "specific_trampolines", (gpointer*)&(amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC]));
1041 find_symbol (sofile, globals, "static_rgctx_trampolines", (gpointer*)&(amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX]));
1042 find_symbol (sofile, globals, "imt_thunks", (gpointer*)&(amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK]));
1043 find_symbol (sofile, globals, "unwind_info", (gpointer)&amodule->unwind_info);
1044 find_symbol (sofile, globals, "mem_end", (gpointer*)&amodule->mem_end);
1046 amodule->mem_begin = amodule->code;
1048 find_symbol (sofile, globals, "plt", (gpointer*)&amodule->plt);
1049 find_symbol (sofile, globals, "plt_end", (gpointer*)&amodule->plt_end);
1051 if (make_unreadable) {
1052 #ifndef PLATFORM_WIN32
1055 int pages, err, len;
1057 addr = amodule->mem_begin;
1058 len = amodule->mem_end - amodule->mem_begin;
1060 /* Round down in both directions to avoid modifying data which is not ours */
1061 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
1062 pages = ((addr + len - page_start + mono_pagesize () - 1) / mono_pagesize ()) - 1;
1063 err = mono_mprotect (page_start, pages * mono_pagesize (), MONO_MMAP_NONE);
1064 g_assert (err == 0);
1070 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1071 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1073 g_hash_table_insert (aot_modules, assembly, amodule);
1076 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1078 assembly->image->aot_module = amodule;
1081 * Since we store methoddef and classdef tokens when referring to methods/classes in
1082 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1083 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1084 * non-lazily, since we can't handle out-of-date errors later.
1086 for (i = 0; i < amodule->image_table_len; ++i)
1087 load_image (amodule, i);
1089 if (amodule->out_of_date) {
1090 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);
1091 if (mono_aot_only) {
1092 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);
1097 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1101 * mono_aot_register_globals:
1103 * This is called by the ctor function in AOT images compiled with the
1104 * 'no-dlsym' option.
1107 mono_aot_register_globals (gpointer *globals)
1109 g_assert_not_reached ();
1113 * mono_aot_register_module:
1115 * This should be called by embedding code to register AOT modules statically linked
1116 * into the executable. AOT_INFO should be the value of the
1117 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1120 mono_aot_register_module (gpointer *aot_info)
1128 /* Determine the assembly name */
1129 find_symbol (NULL, globals, "mono_aot_assembly_name", (gpointer*)&aname);
1132 /* This could be called before startup */
1136 if (!static_aot_modules)
1137 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1139 g_hash_table_insert (static_aot_modules, aname, globals);
1146 mono_aot_init (void)
1148 InitializeCriticalSection (&aot_mutex);
1149 aot_modules = g_hash_table_new (NULL, NULL);
1151 mono_install_assembly_load_hook (load_aot_module, NULL);
1153 if (g_getenv ("MONO_LASTAOT"))
1154 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
1155 if (g_getenv ("MONO_AOT_CACHE"))
1156 use_aot_cache = TRUE;
1160 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1164 info->vtable_size = decode_value (buf, &buf);
1165 if (info->vtable_size == -1)
1168 flags = decode_value (buf, &buf);
1169 info->ghcimpl = (flags >> 0) & 0x1;
1170 info->has_finalize = (flags >> 1) & 0x1;
1171 info->has_cctor = (flags >> 2) & 0x1;
1172 info->has_nested_classes = (flags >> 3) & 0x1;
1173 info->blittable = (flags >> 4) & 0x1;
1174 info->has_references = (flags >> 5) & 0x1;
1175 info->has_static_refs = (flags >> 6) & 0x1;
1176 info->no_special_static_fields = (flags >> 7) & 0x1;
1178 if (info->has_cctor) {
1179 MonoImage *cctor_image = decode_method_ref (module, &info->cctor_token, NULL, NULL, buf, &buf);
1183 if (info->has_finalize) {
1184 info->finalize_image = decode_method_ref (module, &info->finalize_token, NULL, NULL, buf, &buf);
1185 if (!info->finalize_image)
1189 info->instance_size = decode_value (buf, &buf);
1190 info->class_size = decode_value (buf, &buf);
1191 info->packing_size = decode_value (buf, &buf);
1192 info->min_align = decode_value (buf, &buf);
1200 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1203 MonoClass *klass = vtable->klass;
1204 MonoAotModule *aot_module = klass->image->aot_module;
1206 MonoCachedClassInfo class_info;
1210 gboolean no_aot_trampoline;
1212 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !aot_module)
1215 info = &aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1218 err = decode_cached_class_info (aot_module, &class_info, p, &p);
1222 for (i = 0; i < slot; ++i)
1223 decode_method_ref (aot_module, &token, NULL, NULL, p, &p);
1225 image = decode_method_ref (aot_module, &token, NULL, &no_aot_trampoline, p, &p);
1228 if (no_aot_trampoline)
1231 if (mono_metadata_token_index (token) == 0)
1234 return mono_aot_get_method_from_token (domain, image, token);
1238 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1240 MonoAotModule *aot_module = klass->image->aot_module;
1244 if (klass->rank || !aot_module)
1247 p = (guint8*)&aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1249 err = decode_cached_class_info (aot_module, res, p, &p);
1257 * mono_aot_get_class_from_name:
1259 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1260 * using a cache stored in the AOT file.
1261 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1263 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1267 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1269 MonoAotModule *aot_module = image->aot_module;
1270 guint16 *table, *entry;
1273 char full_name_buf [1024];
1275 const char *name2, *name_space2;
1277 guint32 cols [MONO_TYPEDEF_SIZE];
1278 GHashTable *nspace_table;
1280 if (!aot_module || !aot_module->class_name_table)
1287 /* First look in the cache */
1288 if (!aot_module->name_cache)
1289 aot_module->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1290 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1292 *klass = g_hash_table_lookup (nspace_table, name);
1299 table_size = aot_module->class_name_table [0];
1300 table = aot_module->class_name_table + 1;
1302 if (name_space [0] == '\0')
1303 full_name = g_strdup_printf ("%s", name);
1305 if (strlen (name_space) + strlen (name) < 1000) {
1306 sprintf (full_name_buf, "%s.%s", name_space, name);
1307 full_name = full_name_buf;
1309 full_name = g_strdup_printf ("%s.%s", name_space, name);
1312 hash = mono_aot_str_hash (full_name) % table_size;
1313 if (full_name != full_name_buf)
1316 entry = &table [hash * 2];
1318 if (entry [0] != 0) {
1319 t = &image->tables [MONO_TABLE_TYPEDEF];
1322 guint32 index = entry [0];
1323 guint32 next = entry [1];
1324 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1326 name_table_accesses ++;
1328 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1330 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1331 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1333 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1335 *klass = mono_class_get (image, token);
1340 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1341 if (!nspace_table) {
1342 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1343 g_hash_table_insert (aot_module->name_cache, (char*)name_space2, nspace_table);
1345 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1352 entry = &table [next * 2];
1365 * LOCKING: Acquires the domain lock.
1368 decode_exception_debug_info (MonoAotModule *aot_module, MonoDomain *domain,
1369 MonoMethod *method, guint8* ex_info, guint8 *code)
1373 guint code_len, used_int_regs, flags;
1374 gboolean has_generic_jit_info, has_dwarf_unwind_info;
1376 MonoMethodHeader *header;
1377 int generic_info_size;
1379 header = mono_method_get_header (method);
1381 /* Load the method info from the AOT file */
1384 code_len = decode_value (p, &p);
1385 flags = decode_value (p, &p);
1386 has_generic_jit_info = (flags & 1) != 0;
1387 has_dwarf_unwind_info = (flags & 2) != 0;
1388 if (has_dwarf_unwind_info) {
1391 offset = decode_value (p, &p);
1392 g_assert (offset < (1 << 30));
1393 used_int_regs = offset;
1395 used_int_regs = decode_value (p, &p);
1397 if (has_generic_jit_info)
1398 generic_info_size = sizeof (MonoGenericJitInfo);
1400 generic_info_size = 0;
1402 /* Exception table */
1403 if (header && header->num_clauses) {
1405 mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
1406 jinfo->num_clauses = header->num_clauses;
1408 for (i = 0; i < header->num_clauses; ++i) {
1409 MonoExceptionClause *ec = &header->clauses [i];
1410 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1412 ei->flags = ec->flags;
1413 ei->exvar_offset = decode_value (p, &p);
1415 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
1416 ei->data.filter = code + decode_value (p, &p);
1418 ei->data.catch_class = ec->data.catch_class;
1420 ei->try_start = code + decode_value (p, &p);
1421 ei->try_end = code + decode_value (p, &p);
1422 ei->handler_start = code + decode_value (p, &p);
1426 jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
1429 jinfo->code_size = code_len;
1430 jinfo->used_regs = used_int_regs;
1431 jinfo->method = method;
1432 jinfo->code_start = code;
1433 jinfo->domain_neutral = 0;
1434 jinfo->from_aot = 1;
1436 if (has_generic_jit_info) {
1437 MonoGenericJitInfo *gi;
1439 jinfo->has_generic_jit_info = 1;
1441 gi = mono_jit_info_get_generic_jit_info (jinfo);
1444 gi->has_this = decode_value (p, &p);
1445 gi->this_reg = decode_value (p, &p);
1446 gi->this_offset = decode_value (p, &p);
1448 /* This currently contains no data */
1449 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1451 jinfo->method = decode_method_ref_2 (aot_module, p, &p);
1454 /* Load debug info */
1455 buf_len = decode_value (p, &p);
1456 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1462 * mono_aot_get_unwind_info:
1464 * Return a pointer to the DWARF unwind info belonging to JI.
1467 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
1469 MonoAotModule *amodule = ji->method->klass->image->aot_module;
1473 g_assert (ji->from_aot);
1475 p = amodule->unwind_info + ji->used_regs;
1476 *unwind_info_len = decode_value (p, &p);
1481 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
1483 int pos, left, right, offset, offset1, offset2, last_offset, new_offset;
1484 int page_index, method_index, table_len, is_wrapper;
1486 MonoAotModule *amodule = image->aot_module;
1489 guint8 *code, *ex_info, *p;
1490 guint32 *table, *ptr;
1496 if (domain != mono_get_root_domain ())
1500 offset = (guint8*)addr - amodule->code;
1502 /* First search through the index */
1503 ptr = amodule->method_order;
1508 if (*ptr == 0xffffff)
1512 while (*ptr != 0xffffff) {
1513 guint32 method_index = ptr [0];
1514 new_offset = amodule->code_offsets [method_index];
1516 if (offset >= last_offset && offset < new_offset) {
1522 last_offset = new_offset;
1526 /* Skip rest of index */
1527 while (*ptr != 0xffffff)
1532 table_len = amodule->method_order_end - table;
1534 g_assert (table <= amodule->method_order_end);
1537 left = (page_index * 1024);
1538 right = left + 1024;
1540 if (right > table_len)
1543 offset1 = amodule->code_offsets [table [left]];
1544 g_assert (offset1 <= offset);
1546 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1549 //printf ("Not found in index: 0x%x\n", offset);
1554 /* Binary search inside the method_order table to find the method */
1556 pos = (left + right) / 2;
1558 g_assert (table + pos <= amodule->method_order_end);
1560 //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]]);
1562 offset1 = amodule->code_offsets [table [pos]];
1563 if (table + pos + 1 >= amodule->method_order_end)
1564 offset2 = amodule->code_end - amodule->code;
1566 offset2 = amodule->code_offsets [table [pos + 1]];
1568 if (offset < offset1)
1570 else if (offset >= offset2)
1576 method_index = table [pos];
1578 /* Might be a wrapper/extra method */
1579 if (amodule->extra_methods) {
1581 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
1588 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
1590 * This is hit for extra methods which are called directly, so they are
1591 * not in amodule->extra_methods.
1593 table_len = amodule->extra_method_info_offsets [0];
1594 table = amodule->extra_method_info_offsets + 1;
1601 pos = ((left + right) / 2);
1603 g_assert (pos < table_len);
1605 if (table [pos * 2] < method_index)
1607 else if (table [pos * 2] > method_index)
1613 p = amodule->extra_method_info + table [(pos * 2) + 1];
1614 is_wrapper = decode_value (p, &p);
1615 g_assert (!is_wrapper);
1616 method = decode_method_ref_2 (amodule, p, &p);
1619 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
1620 method = mono_get_method (image, token, NULL);
1627 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1629 code = &amodule->code [amodule->code_offsets [method_index]];
1630 ex_info = &amodule->ex_info [amodule->ex_info_offsets [method_index]];
1632 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code);
1634 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
1635 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
1637 /* Add it to the normal JitInfo tables */
1638 mono_jit_info_table_add (domain, jinfo);
1644 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
1652 case MONO_PATCH_INFO_METHOD:
1653 case MONO_PATCH_INFO_METHOD_JUMP:
1654 case MONO_PATCH_INFO_ICALL_ADDR:
1655 case MONO_PATCH_INFO_METHOD_RGCTX: {
1658 gboolean no_aot_trampoline;
1660 image = decode_method_ref (aot_module, &token, &method, &no_aot_trampoline, p, &p);
1664 if (!method && !mono_aot_only && !no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (token) == MONO_TABLE_METHOD)) {
1665 ji->data.target = mono_create_jit_trampoline_from_token (image, token);
1666 ji->type = MONO_PATCH_INFO_ABS;
1670 ji->data.method = method;
1672 ji->data.method = mono_get_method (image, token, NULL);
1673 g_assert (ji->data.method);
1674 mono_class_init (ji->data.method->klass);
1678 case MONO_PATCH_INFO_INTERNAL_METHOD:
1679 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1680 guint32 len = decode_value (p, &p);
1682 ji->data.name = (char*)p;
1686 case MONO_PATCH_INFO_METHODCONST:
1688 ji->data.method = decode_method_ref_2 (aot_module, p, &p);
1689 if (!ji->data.method)
1692 case MONO_PATCH_INFO_VTABLE:
1693 case MONO_PATCH_INFO_CLASS:
1694 case MONO_PATCH_INFO_IID:
1695 case MONO_PATCH_INFO_ADJUSTED_IID:
1697 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1698 if (!ji->data.klass)
1701 case MONO_PATCH_INFO_CLASS_INIT:
1702 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1703 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1704 if (!ji->data.klass)
1707 case MONO_PATCH_INFO_IMAGE:
1708 ji->data.image = load_image (aot_module, decode_value (p, &p));
1709 if (!ji->data.image)
1712 case MONO_PATCH_INFO_FIELD:
1713 case MONO_PATCH_INFO_SFLDA:
1715 ji->data.field = decode_field_info (aot_module, p, &p);
1716 if (!ji->data.field)
1719 case MONO_PATCH_INFO_SWITCH:
1720 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
1721 ji->data.table->table_size = decode_value (p, &p);
1722 table = g_new (gpointer, ji->data.table->table_size);
1723 ji->data.table->table = (MonoBasicBlock**)table;
1724 for (i = 0; i < ji->data.table->table_size; i++)
1725 table [i] = (gpointer)(gssize)decode_value (p, &p);
1727 case MONO_PATCH_INFO_R4: {
1730 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
1731 val = decode_value (p, &p);
1732 *(float*)ji->data.target = *(float*)&val;
1735 case MONO_PATCH_INFO_R8: {
1738 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
1740 val [0] = decode_value (p, &p);
1741 val [1] = decode_value (p, &p);
1742 *(double*)ji->data.target = *(double*)val;
1745 case MONO_PATCH_INFO_LDSTR:
1746 image = load_image (aot_module, decode_value (p, &p));
1749 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
1751 case MONO_PATCH_INFO_RVA:
1752 case MONO_PATCH_INFO_DECLSEC:
1753 case MONO_PATCH_INFO_LDTOKEN:
1754 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1756 image = load_image (aot_module, decode_value (p, &p));
1759 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
1761 ji->data.token->has_context = decode_value (p, &p);
1762 if (ji->data.token->has_context) {
1763 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
1768 case MONO_PATCH_INFO_EXC_NAME:
1769 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1770 if (!ji->data.klass)
1772 ji->data.name = ji->data.klass->name;
1774 case MONO_PATCH_INFO_METHOD_REL:
1775 ji->data.offset = decode_value (p, &p);
1777 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1778 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1779 case MONO_PATCH_INFO_MONITOR_ENTER:
1780 case MONO_PATCH_INFO_MONITOR_EXIT:
1782 case MONO_PATCH_INFO_RGCTX_FETCH: {
1784 MonoJumpInfoRgctxEntry *entry;
1786 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
1787 entry->method = decode_method_ref_2 (aot_module, p, &p);
1788 entry->in_mrgctx = decode_value (p, &p);
1789 entry->info_type = decode_value (p, &p);
1790 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
1791 entry->data->type = decode_value (p, &p);
1793 res = decode_patch (aot_module, mp, entry->data, p, &p);
1796 ji->data.rgctx_entry = entry;
1800 g_warning ("unhandled type %d", ji->type);
1801 g_assert_not_reached ();
1812 static MonoJumpInfo*
1813 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
1814 guint32 got_index, guint32 **got_slots,
1815 guint8 *buf, guint8 **endbuf)
1817 MonoJumpInfo *patches;
1823 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
1825 *got_slots = g_malloc (sizeof (guint32) * n_patches);
1827 for (pindex = 0; pindex < n_patches; ++pindex) {
1828 MonoJumpInfo *ji = &patches [pindex];
1833 got_offset = decode_value (p, &p);
1835 if (aot_module->got [got_offset]) {
1836 /* Already loaded */
1837 //printf ("HIT!\n");
1839 shared_p = aot_module->got_info + aot_module->got_info_offsets [got_offset];
1841 ji->type = decode_value (shared_p, &shared_p);
1843 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
1848 (*got_slots) [pindex] = got_offset;
1855 g_free (*got_slots);
1862 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
1865 * Jump addresses cannot be patched by the trampoline code since it
1866 * does not have access to the caller's address. Instead, we collect
1867 * the addresses of the GOT slots pointing to a method, and patch
1868 * them after the method has been compiled.
1870 MonoJitDomainInfo *info = domain_jit_info (domain);
1873 mono_domain_lock (domain);
1874 if (!info->jump_target_got_slot_hash)
1875 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
1876 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
1877 list = g_slist_prepend (list, got_slot);
1878 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
1879 mono_domain_unlock (domain);
1885 * Load the method identified by METHOD_INDEX from the AOT image. Return a
1886 * pointer to the native code of the method, or NULL if not found.
1887 * METHOD might not be set if the caller only has the image/token info.
1890 load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
1893 gboolean from_plt = method == NULL;
1895 int i, pindex, got_index = 0, n_patches, used_strings;
1896 gboolean keep_patches = TRUE;
1897 guint8 *p, *ex_info;
1898 MonoJitInfo *jinfo = NULL;
1899 guint8 *code, *info;
1901 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
1904 if ((domain != mono_get_root_domain ()) && (!(aot_module->opts & MONO_OPT_SHARED)))
1905 /* Non shared AOT code can't be used in other appdomains */
1908 if (aot_module->out_of_date)
1911 if (aot_module->code_offsets [method_index] == 0xffffffff) {
1912 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
1916 method = mono_get_method (image, token, NULL);
1917 full_name = mono_method_full_name (method, TRUE);
1918 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
1924 code = &aot_module->code [aot_module->code_offsets [method_index]];
1925 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
1928 if (!aot_module->methods_loaded)
1929 aot_module->methods_loaded = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 1);
1932 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
1935 if (mono_last_aot_method != -1) {
1936 if (mono_jit_stats.methods_aot > mono_last_aot_method)
1939 if (method && mono_jit_stats.methods_aot == mono_last_aot_method)
1940 printf ("LAST AOT METHOD: %s.%s.%s.\n", method->klass->name_space, method->klass->name, method->name);
1946 klass = method->klass;
1947 decode_klass_ref (aot_module, p, &p);
1949 klass = decode_klass_ref (aot_module, p, &p);
1952 if (aot_module->opts & MONO_OPT_SHARED)
1953 used_strings = decode_value (p, &p);
1957 for (i = 0; i < used_strings; i++) {
1958 guint token = decode_value (p, &p);
1959 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (token));
1962 if (aot_module->opts & MONO_OPT_SHARED)
1963 keep_patches = FALSE;
1965 n_patches = decode_value (p, &p);
1967 keep_patches = FALSE;
1970 MonoJumpInfo *patches;
1976 mp = mono_mempool_new ();
1978 got_index = decode_value (p, &p);
1980 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
1981 if (patches == NULL)
1984 for (pindex = 0; pindex < n_patches; ++pindex) {
1985 MonoJumpInfo *ji = &patches [pindex];
1987 if (!aot_module->got [got_slots [pindex]]) {
1988 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
1989 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
1990 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
1992 ji->type = MONO_PATCH_INFO_NONE;
1998 mono_mempool_destroy (mp);
2001 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2005 method = mono_get_method (image, token, NULL);
2007 full_name = mono_method_full_name (method, TRUE);
2010 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
2011 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2014 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);
2020 mono_jit_stats.methods_aot++;
2022 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2024 init_plt (aot_module);
2026 if (method && method->wrapper_type)
2027 g_hash_table_insert (aot_module->method_to_code, method, code);
2031 if (from_plt && klass && !klass->generic_container)
2032 mono_runtime_class_init (mono_class_vtable (domain, klass));
2037 /* FIXME: The space in domain->mp is wasted */
2038 if (aot_module->opts & MONO_OPT_SHARED)
2039 /* No need to cache patches */
2040 mono_mempool_destroy (mp);
2049 find_extra_method_in_amodule (MonoAotModule *amodule, MonoMethod *method)
2051 guint32 table_size, entry_size, hash;
2052 guint32 *table, *entry;
2055 static guint32 n_extra_decodes;
2060 table_size = amodule->extra_method_table [0];
2061 table = amodule->extra_method_table + 1;
2064 if (method->wrapper_type) {
2065 name = mono_aot_wrapper_name (method);
2068 hash = mono_aot_method_hash (method) % table_size;
2070 entry = &table [hash * entry_size];
2077 guint32 key = entry [0];
2078 guint32 value = entry [1];
2079 guint32 next = entry [entry_size - 1];
2082 int is_wrapper_name;
2084 p = amodule->extra_method_info + key;
2085 is_wrapper_name = decode_value (p, &p);
2086 if (is_wrapper_name) {
2087 int wrapper_type = decode_value (p, &p);
2088 if (wrapper_type == method->wrapper_type && !strcmp (name, (char*)p)) {
2092 } else if (can_method_ref_match_method (amodule, p, method)) {
2094 if (!amodule->method_ref_to_method)
2095 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
2096 m = g_hash_table_lookup (amodule->method_ref_to_method, p);
2100 m = decode_method_ref_2 (amodule, p, &p);
2103 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
2112 /* Special case: wrappers of shared generic methods */
2113 if (m && method->wrapper_type && m->wrapper_type == m->wrapper_type &&
2114 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2115 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
2116 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
2118 if (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2) {
2124 /* Methods decoded needlessly */
2127 printf ("%d %s %s\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE));
2133 entry = &table [next * entry_size];
2143 add_module_cb (gpointer key, gpointer value, gpointer user_data)
2145 g_ptr_array_add ((GPtrArray*)user_data, value);
2149 * find_extra_method:
2151 * Try finding METHOD in the extra_method table in all AOT images.
2152 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
2153 * module where the method was found.
2156 find_extra_method (MonoMethod *method, MonoAotModule **out_amodule)
2162 /* Try the method's module first */
2163 *out_amodule = method->klass->image->aot_module;
2164 index = find_extra_method_in_amodule (method->klass->image->aot_module, method);
2165 if (index != 0xffffff)
2169 * Try all other modules.
2170 * This is needed because generic instances klass->image points to the image
2171 * containing the generic definition, but the native code is generated to the
2172 * AOT image which contains the reference.
2175 /* Make a copy to avoid doing the search inside the aot lock */
2176 modules = g_ptr_array_new ();
2178 g_hash_table_foreach (aot_modules, add_module_cb, modules);
2182 for (i = 0; i < modules->len; ++i) {
2183 MonoAotModule *amodule = g_ptr_array_index (modules, i);
2185 if (amodule != method->klass->image->aot_module)
2186 index = find_extra_method_in_amodule (amodule, method);
2187 if (index != 0xffffff) {
2188 *out_amodule = amodule;
2193 g_ptr_array_free (modules, TRUE);
2199 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2201 MonoClass *klass = method->klass;
2202 guint32 method_index;
2203 MonoAotModule *amodule = klass->image->aot_module;
2209 if (amodule->out_of_date)
2212 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2213 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2214 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2215 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2218 g_assert (klass->inited);
2220 /* Find method index */
2221 if (method->is_inflated && mono_method_is_generic_sharable_impl (method, FALSE)) {
2222 method = mono_method_get_declaring_generic_method (method);
2223 method_index = mono_metadata_token_index (method->token) - 1;
2224 } else if (method->is_inflated || !method->token) {
2225 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
2227 code = g_hash_table_lookup (amodule->method_to_code, method);
2232 method_index = find_extra_method (method, &amodule);
2233 if (method_index == 0xffffff) {
2234 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2237 full_name = mono_method_full_name (method, TRUE);
2238 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
2244 if (method_index == 0xffffff)
2247 /* Needed by find_jit_info */
2249 if (!amodule->extra_methods)
2250 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2251 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
2255 method_index = mono_metadata_token_index (method->token) - 1;
2258 return load_method (domain, amodule, klass->image, method, method->token, method_index);
2262 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2266 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2268 MonoAotModule *aot_module = image->aot_module;
2274 method_index = mono_metadata_token_index (token) - 1;
2276 return load_method (domain, aot_module, image, NULL, token, method_index);
2282 } IsGotEntryUserData;
2285 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
2287 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
2288 MonoAotModule *aot_module = (MonoAotModule*)value;
2290 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
2295 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2297 IsGotEntryUserData user_data;
2302 user_data.addr = addr;
2303 user_data.res = FALSE;
2305 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
2308 return user_data.res;
2313 MonoAotModule *module;
2314 } FindAotModuleUserData;
2317 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
2319 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
2320 MonoAotModule *aot_module = (MonoAotModule*)value;
2322 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
2323 data->module = aot_module;
2326 static inline MonoAotModule*
2327 find_aot_module (guint8 *code)
2329 FindAotModuleUserData user_data;
2334 /* Reading these need no locking */
2335 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
2338 user_data.addr = code;
2339 user_data.module = NULL;
2342 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
2345 return user_data.module;
2349 * mono_aot_plt_resolve:
2351 * This function is called by the entries in the PLT to resolve the actual method that
2352 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2355 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2357 #ifdef MONO_ARCH_AOT_SUPPORTED
2358 guint8 *p, *target, *plt_entry;
2360 MonoAotModule *module = (MonoAotModule*)aot_module;
2364 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2366 p = &module->got_info [plt_info_offset];
2368 ji.type = decode_value (p, &p);
2370 mp = mono_mempool_new_size (512);
2371 res = decode_patch (module, mp, &ji, p, &p);
2372 // FIXME: Error handling (how ?)
2375 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
2377 mono_mempool_destroy (mp);
2379 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2380 plt_entry = mono_aot_get_plt_entry (code);
2381 g_assert (plt_entry);
2382 mono_arch_patch_plt_entry (plt_entry, target);
2386 g_assert_not_reached ();
2394 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2395 * method in the module is loaded to avoid committing memory by writing to it.
2396 * LOCKING: Assumes the AOT lock is held.
2399 init_plt (MonoAotModule *amodule)
2401 #ifdef MONO_ARCH_AOT_SUPPORTED
2403 guint8 *buf = amodule->plt;
2404 #elif defined(__x86_64__) || defined(__arm__)
2409 if (amodule->plt_inited)
2412 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
2415 /* Initialize the first PLT entry */
2416 make_writable (amodule->plt, amodule->plt_end - amodule->plt);
2417 x86_jump_code (buf, tramp);
2418 #elif defined(__x86_64__) || defined(__arm__)
2420 * Initialize the PLT entries in the GOT to point to the default targets.
2423 /* The first entry points to the AOT trampoline */
2424 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base] = tramp;
2425 for (i = 1; i < amodule->info.plt_size; ++i)
2426 /* All the default entries point to the first entry */
2427 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = amodule->plt;
2429 g_assert_not_reached ();
2432 amodule->plt_inited = TRUE;
2437 * mono_aot_get_plt_entry:
2439 * Return the address of the PLT entry called by the code at CODE if exists.
2442 mono_aot_get_plt_entry (guint8 *code)
2444 MonoAotModule *aot_module = find_aot_module (code);
2445 #if defined(__arm__)
2452 #if defined(__i386__) || defined(__x86_64__)
2453 if (code [-5] == 0xe8) {
2454 guint32 disp = *(guint32*)(code - 4);
2455 guint8 *target = code + disp;
2457 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2460 #elif defined(__arm__)
2461 ins = ((guint32*)(gpointer)code) [-1];
2463 /* Should be a 'bl' */
2464 if ((((ins >> 25) & 0x7) == 0x5) && (((ins >> 24) & 0x1) == 0x1)) {
2465 gint32 disp = ((gint32)ins) & 0xffffff;
2466 guint8 *target = code - 4 + 8 + (disp * 4);
2468 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2472 g_assert_not_reached ();
2479 * mono_aot_get_plt_info_offset:
2481 * Return the PLT info offset belonging to the plt entry called by CODE.
2484 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2486 guint8 *plt_entry = mono_aot_get_plt_entry (code);
2488 g_assert (plt_entry);
2490 /* The offset is embedded inside the code after the plt entry */
2491 #if defined(__i386__)
2492 return *(guint32*)(plt_entry + 5);
2493 #elif defined(__x86_64__)
2494 return *(guint32*)(plt_entry + 6);
2495 #elif defined(__arm__)
2496 /* The offset is stored as the 5th word of the plt entry */
2497 return ((guint32*)plt_entry) [4];
2499 g_assert_not_reached ();
2507 * Load the function named NAME from the aot image.
2510 load_function (MonoAotModule *amodule, const char *name)
2514 int n_patches, got_index, pindex;
2520 symbol = g_strdup_printf ("%s", name);
2521 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
2524 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
2526 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
2530 symbol = g_strdup_printf ("%s_p", name);
2531 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
2534 /* Nothing to patch */
2537 /* Similar to mono_aot_load_method () */
2539 n_patches = decode_value (p, &p);
2542 MonoJumpInfo *patches;
2545 mp = mono_mempool_new ();
2547 got_index = decode_value (p, &p);
2549 patches = load_patch_info (amodule, mp, n_patches, got_index, &got_slots, p, &p);
2552 for (pindex = 0; pindex < n_patches; ++pindex) {
2553 MonoJumpInfo *ji = &patches [pindex];
2556 if (amodule->got [got_slots [pindex]])
2560 * When this code is executed, the runtime may not be initalized yet, so
2561 * resolve the patch info by hand.
2563 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
2564 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
2565 target = mono_get_lmf_addr;
2566 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
2567 target = mono_thread_force_interruption_checkpoint;
2568 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
2569 target = mono_exception_from_token;
2570 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
2571 target = mono_get_throw_exception ();
2573 } else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
2574 target = mono_amd64_throw_exception;
2577 } else if (!strcmp (ji->data.name, "mono_amd64_get_original_ip")) {
2578 target = mono_amd64_get_original_ip;
2581 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
2582 target = mono_arm_throw_exception;
2583 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception_by_token")) {
2584 target = mono_arm_throw_exception_by_token;
2586 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
2587 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
2588 target = (gpointer)mono_get_trampoline_func (tramp_type2);
2589 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
2590 /* atoll is needed because the the offset is unsigned */
2594 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
2595 g_assert (res == 1);
2596 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
2597 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_enter")) {
2598 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
2599 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_exit")) {
2600 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
2601 } else if (!strcmp (ji->data.name, "specific_trampoline_generic_class_init")) {
2602 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), NULL);
2603 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
2604 target = mono_thread_get_and_clear_pending_exception;
2606 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
2607 g_assert_not_reached ();
2611 /* Hopefully the code doesn't have patches which need method or
2614 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
2618 amodule->got [got_slots [pindex]] = target;
2623 mono_mempool_destroy (mp);
2630 * Return the piece of code identified by NAME from the mscorlib AOT file.
2633 mono_aot_get_named_code (const char *name)
2636 MonoAotModule *amodule;
2638 image = mono_defaults.corlib;
2641 amodule = image->aot_module;
2644 return load_function (amodule, name);
2647 /* Return a given kind of trampoline */
2649 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
2651 MonoAotModule *amodule;
2652 int index, tramp_size;
2655 /* Currently, we keep all trampolines in the mscorlib AOT image */
2656 image = mono_defaults.corlib;
2661 amodule = image->aot_module;
2664 *out_amodule = amodule;
2666 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type])
2667 g_error ("Ran out of trampolines of type %d in '%s' (%d)\n", tramp_type, image->name, amodule->info.num_trampolines [tramp_type]);
2669 index = amodule->trampoline_index [tramp_type] ++;
2673 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
2675 tramp_size = amodule->info.trampoline_size [tramp_type];
2678 *out_tramp_size = tramp_size;
2680 return amodule->trampolines [tramp_type] + (index * tramp_size);
2684 * Return a specific trampoline from the AOT file.
2687 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2689 MonoAotModule *amodule;
2690 guint32 got_offset, tramp_size;
2691 guint8 *code, *tramp;
2692 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
2693 static gboolean inited;
2694 static guint32 num_trampolines;
2700 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
2709 if (!generic_trampolines [tramp_type]) {
2712 symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
2713 generic_trampolines [tramp_type] = mono_aot_get_named_code (symbol);
2717 tramp = generic_trampolines [tramp_type];
2720 code = get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
2722 amodule->got [got_offset] = tramp;
2723 amodule->got [got_offset + 1] = arg1;
2726 *code_len = tramp_size;
2732 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
2734 MonoAotModule *amodule;
2738 code = get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
2740 amodule->got [got_offset] = ctx;
2741 amodule->got [got_offset + 1] = addr;
2747 mono_aot_get_unbox_trampoline (MonoMethod *method)
2749 guint32 method_index = mono_metadata_token_index (method->token) - 1;
2750 MonoAotModule *amodule;
2754 if (method->is_inflated && !mono_method_is_generic_sharable_impl (method, FALSE)) {
2755 guint32 index = find_extra_method (method, &amodule);
2756 g_assert (index != 0xffffff);
2758 symbol = g_strdup_printf ("ut_e_%d", index);
2760 amodule = method->klass->image->aot_module;
2763 symbol = g_strdup_printf ("ut_%d", method_index);
2765 code = load_function (amodule, symbol);
2771 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2776 symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", slot);
2777 code = load_function (mono_defaults.corlib->aot_module, symbol);
2783 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
2789 MonoAotModule *amodule;
2791 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
2793 /* Save the entries into an array */
2794 buf = mono_domain_alloc (domain, (count + 1) * 2 * sizeof (gpointer));
2795 for (i = 0; i < count; ++i) {
2796 MonoIMTCheckItem *item = imt_entries [i];
2798 g_assert (item->key);
2800 g_assert (!item->has_target_code);
2802 buf [(i * 2)] = item->key;
2803 buf [(i * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
2805 buf [(count * 2)] = NULL;
2806 buf [(count * 2) + 1] = fail_tramp;
2808 amodule->got [got_offset] = buf;
2817 mono_aot_init (void)
2822 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2828 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2834 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2840 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2846 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2852 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2858 mono_aot_get_plt_entry (guint8 *code)
2864 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2870 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2876 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2878 g_assert_not_reached ();
2884 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2886 g_assert_not_reached ();
2891 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
2893 g_assert_not_reached ();
2898 mono_aot_get_named_code (const char *name)
2900 g_assert_not_reached ();
2905 mono_aot_get_unbox_trampoline (MonoMethod *method)
2907 g_assert_not_reached ();
2912 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2914 g_assert_not_reached ();
2919 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
2921 g_assert_not_reached ();
2926 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
2928 g_assert_not_reached ();