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 #ifdef HAVE_DL_ITERATE_PHDR
42 #include <mono/metadata/tabledefs.h>
43 #include <mono/metadata/class.h>
44 #include <mono/metadata/object.h>
45 #include <mono/metadata/tokentype.h>
46 #include <mono/metadata/appdomain.h>
47 #include <mono/metadata/debug-helpers.h>
48 #include <mono/metadata/assembly.h>
49 #include <mono/metadata/metadata-internals.h>
50 #include <mono/metadata/marshal.h>
51 #include <mono/metadata/gc-internal.h>
52 #include <mono/metadata/monitor.h>
53 #include <mono/metadata/threads-types.h>
54 #include <mono/metadata/mono-endian.h>
55 #include <mono/utils/mono-logger-internal.h>
56 #include <mono/utils/mono-mmap.h>
57 #include "mono/utils/mono-compiler.h"
58 #include <mono/utils/mono-counters.h>
66 #define SHARED_EXT ".dll"
67 #elif ((defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)) && !defined(__linux__)
68 #define SHARED_EXT ".dylib"
69 #elif defined(__APPLE__) && defined(TARGET_X86) && !defined(__native_client_codegen__)
70 #define SHARED_EXT ".dylib"
72 #define SHARED_EXT ".so"
75 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
76 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
78 typedef struct MonoAotModule {
80 /* Pointer to the Global Offset Table */
82 GHashTable *name_cache;
83 GHashTable *extra_methods;
84 /* Maps methods to their code */
85 GHashTable *method_to_code;
86 /* Maps pointers into the method info to the methods themselves */
87 GHashTable *method_ref_to_method;
88 MonoAssemblyName *image_names;
90 MonoAssembly *assembly;
91 MonoImage **image_table;
92 guint32 image_table_len;
102 gint32 *code_offsets;
103 /* This contains <offset, index> pairs sorted by offset */
104 /* This is needed because LLVM emitted methods can be in any order */
105 gint32 *sorted_code_offsets;
106 gint32 sorted_code_offsets_len;
107 guint32 *method_info_offsets;
108 guint32 *got_info_offsets;
109 guint32 *ex_info_offsets;
110 guint32 *class_info_offsets;
111 guint32 *methods_loaded;
112 guint16 *class_name_table;
113 guint32 *extra_method_table;
114 guint32 *extra_method_info_offsets;
118 /* Points to the mono EH data created by LLVM */
119 guint8 *mono_eh_frame;
121 /* Points to the trampolines */
122 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
123 /* The first unused trampoline of each kind */
124 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
126 MonoAotFileInfo info;
132 static GHashTable *aot_modules;
133 #define mono_aot_lock() EnterCriticalSection (&aot_mutex)
134 #define mono_aot_unlock() LeaveCriticalSection (&aot_mutex)
135 static CRITICAL_SECTION aot_mutex;
138 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
139 * AOT modules registered by mono_aot_register_module ().
141 static GHashTable *static_aot_modules;
144 * Maps MonoJitInfo* to the aot module they belong to, this can be different
145 * from ji->method->klass->image's aot module for generic instances.
147 static GHashTable *ji_to_amodule;
150 * Whenever to AOT compile loaded assemblies on demand and store them in
151 * a cache under $HOME/.mono/aot-cache.
153 static gboolean use_aot_cache = FALSE;
156 * Whenever to spawn a new process to AOT a file or do it in-process. Only relevant if
157 * use_aot_cache is TRUE.
159 static gboolean spawn_compiler = TRUE;
162 static gint32 mono_last_aot_method = -1;
164 static gboolean make_unreadable = FALSE;
165 static guint32 name_table_accesses = 0;
166 static guint32 n_pagefaults = 0;
168 /* Used to speed-up find_aot_module () */
169 static gsize aot_code_low_addr = (gssize)-1;
170 static gsize aot_code_high_addr = 0;
172 static GHashTable *aot_jit_icall_hash;
175 init_plt (MonoAotModule *info);
177 /*****************************************************/
179 /*****************************************************/
184 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
185 * found, and sets the loader error if SET_ERROR is TRUE.
188 load_image (MonoAotModule *amodule, int index, gboolean set_error)
190 MonoAssembly *assembly;
191 MonoImageOpenStatus status;
193 g_assert (index < amodule->image_table_len);
195 if (amodule->image_table [index])
196 return amodule->image_table [index];
197 if (amodule->out_of_date)
200 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
202 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is unusable because dependency %s is not found.\n", amodule->aot_name, amodule->image_names [index].name);
203 amodule->out_of_date = TRUE;
206 char *full_name = mono_stringify_assembly_name (&amodule->image_names [index]);
207 mono_loader_set_error_assembly_load (full_name, FALSE);
213 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
214 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').\n", amodule->aot_name, amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
215 amodule->out_of_date = TRUE;
219 amodule->image_table [index] = assembly->image;
220 return assembly->image;
224 decode_value (guint8 *ptr, guint8 **rptr)
229 if ((b & 0x80) == 0){
232 } else if ((b & 0x40) == 0){
233 len = ((b & 0x3f) << 8 | ptr [1]);
235 } else if (b != 0xff) {
236 len = ((b & 0x1f) << 24) |
243 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
249 //printf ("DECODE: %d.\n", len);
254 * mono_aot_get_method:
256 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
260 mono_aot_get_offset (guint32 *table, int index)
262 int i, group, ngroups, index_entry_size;
263 int start_offset, offset, noffsets, group_size;
264 guint8 *data_start, *p;
265 guint32 *index32 = NULL;
266 guint16 *index16 = NULL;
268 noffsets = table [0];
269 group_size = table [1];
271 index_entry_size = table [3];
272 group = index / group_size;
274 if (index_entry_size == 2) {
275 index16 = (guint16*)&table [4];
276 data_start = (guint8*)&index16 [ngroups];
277 p = data_start + index16 [group];
279 index32 = (guint32*)&table [4];
280 data_start = (guint8*)&index32 [ngroups];
281 p = data_start + index32 [group];
284 /* offset will contain the value of offsets [group * group_size] */
285 offset = start_offset = decode_value (p, &p);
286 for (i = group * group_size + 1; i <= index; ++i) {
287 offset += decode_value (p, &p);
290 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
296 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
299 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
301 static MonoGenericInst*
302 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
305 MonoType **type_argv;
306 MonoGenericInst *inst;
309 type_argc = decode_value (p, &p);
310 type_argv = g_new0 (MonoType*, type_argc);
312 for (i = 0; i < type_argc; ++i) {
313 MonoClass *pclass = decode_klass_ref (module, p, &p);
318 type_argv [i] = &pclass->byval_arg;
321 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
330 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
332 gboolean has_class_inst, has_method_inst;
335 has_class_inst = decode_value (p, &p);
336 if (has_class_inst) {
337 ctx->class_inst = decode_generic_inst (module, p, &p);
338 if (!ctx->class_inst)
341 has_method_inst = decode_value (p, &p);
342 if (has_method_inst) {
343 ctx->method_inst = decode_generic_inst (module, p, &p);
344 if (!ctx->method_inst)
353 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
356 MonoClass *klass, *eklass;
360 token = decode_value (p, &p);
365 if (mono_metadata_token_table (token) == 0) {
366 image = load_image (module, decode_value (p, &p), TRUE);
369 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF + token);
370 } else if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
371 if (token == MONO_TOKEN_TYPE_SPEC) {
372 MonoTypeEnum type = decode_value (p, &p);
374 if (type == MONO_TYPE_GENERICINST) {
376 MonoGenericContext ctx;
379 gclass = decode_klass_ref (module, p, &p);
382 g_assert (gclass->generic_container);
384 memset (&ctx, 0, sizeof (ctx));
385 ctx.class_inst = decode_generic_inst (module, p, &p);
388 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
389 klass = mono_class_from_mono_type (type);
390 mono_metadata_free_type (type);
391 } else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
393 MonoGenericContainer *container;
395 int num = decode_value (p, &p);
396 gboolean is_method = decode_value (p, &p);
399 MonoMethod *method_def;
400 g_assert (type == MONO_TYPE_MVAR);
401 method_def = decode_resolve_method_ref (module, p, &p);
405 container = mono_method_get_generic_container (method_def);
407 MonoClass *class_def;
408 g_assert (type == MONO_TYPE_VAR);
409 class_def = decode_klass_ref (module, p, &p);
413 container = class_def->generic_container;
416 g_assert (container);
418 // FIXME: Memory management
419 t = g_new0 (MonoType, 1);
421 t->data.generic_param = mono_generic_container_get_param (container, num);
423 // FIXME: Maybe use types directly to avoid
424 // the overhead of creating MonoClass-es
425 klass = mono_class_from_mono_type (t);
429 g_assert_not_reached ();
432 image = load_image (module, decode_value (p, &p), TRUE);
435 klass = mono_class_get (image, token);
437 } else if (token == MONO_TOKEN_TYPE_DEF) {
439 image = load_image (module, decode_value (p, &p), TRUE);
442 rank = decode_value (p, &p);
443 eklass = decode_klass_ref (module, p, &p);
444 klass = mono_array_class_get (eklass, rank);
446 g_assert_not_reached ();
454 static MonoClassField*
455 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
457 MonoClass *klass = decode_klass_ref (module, buf, &buf);
464 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
468 return mono_class_get_field (klass, token);
471 /* Stores information returned by decode_method_ref () */
476 gboolean no_aot_trampoline;
480 * decode_method_ref_with_target:
482 * Decode a method reference, storing the image/token into a MethodRef structure.
483 * This avoids loading metadata for the method if the caller does not need it. If the method has
484 * no token, then it is loaded from metadata and ref->method is set to the method instance.
485 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method couldn't resolve to TARGET, and return FALSE.
488 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
490 guint32 image_index, value;
491 MonoImage *image = NULL;
494 memset (ref, 0, sizeof (MethodRef));
496 value = decode_value (p, &p);
497 image_index = value >> 24;
499 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
500 ref->no_aot_trampoline = TRUE;
501 value = decode_value (p, &p);
502 image_index = value >> 24;
505 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
506 if (target && target->wrapper_type)
510 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
511 guint32 wrapper_type;
513 wrapper_type = decode_value (p, &p);
515 if (target && target->wrapper_type != wrapper_type)
519 image = mono_defaults.corlib;
521 switch (wrapper_type) {
522 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
523 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
527 mono_class_init (m->klass);
528 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
531 case MONO_WRAPPER_PROXY_ISINST: {
532 MonoClass *klass = decode_klass_ref (module, p, &p);
535 ref->method = mono_marshal_get_proxy_cancast (klass);
538 case MONO_WRAPPER_LDFLD:
539 case MONO_WRAPPER_LDFLDA:
540 case MONO_WRAPPER_STFLD:
541 case MONO_WRAPPER_ISINST: {
542 MonoClass *klass = decode_klass_ref (module, p, &p);
545 if (wrapper_type == MONO_WRAPPER_LDFLD)
546 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
547 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
548 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
549 else if (wrapper_type == MONO_WRAPPER_STFLD)
550 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
551 else if (wrapper_type == MONO_WRAPPER_ISINST)
552 ref->method = mono_marshal_get_isinst (klass);
554 g_assert_not_reached ();
557 case MONO_WRAPPER_LDFLD_REMOTE:
558 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
560 case MONO_WRAPPER_STFLD_REMOTE:
561 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
563 case MONO_WRAPPER_ALLOC: {
564 int atype = decode_value (p, &p);
566 ref->method = mono_gc_get_managed_allocator_by_type (atype);
567 g_assert (ref->method);
570 case MONO_WRAPPER_WRITE_BARRIER:
571 ref->method = mono_gc_get_write_barrier ();
573 case MONO_WRAPPER_STELEMREF:
574 ref->method = mono_marshal_get_stelemref ();
576 case MONO_WRAPPER_SYNCHRONIZED: {
577 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
581 ref->method = mono_marshal_get_synchronized_wrapper (m);
584 case MONO_WRAPPER_UNKNOWN: {
585 MonoMethodDesc *desc;
586 MonoMethod *orig_method;
587 int subtype = decode_value (p, &p);
589 if (subtype == MONO_AOT_WRAPPER_PTR_TO_STRUCTURE || subtype == MONO_AOT_WRAPPER_STRUCTURE_TO_PTR) {
590 MonoClass *klass = decode_klass_ref (module, p, &p);
596 if (klass != target->klass)
599 if (subtype == MONO_AOT_WRAPPER_PTR_TO_STRUCTURE) {
600 if (strcmp (target->name, "PtrToStructure"))
602 ref->method = mono_marshal_get_ptr_to_struct (klass);
604 if (strcmp (target->name, "StructureToPtr"))
606 ref->method = mono_marshal_get_struct_to_ptr (klass);
609 if (subtype == MONO_AOT_WRAPPER_MONITOR_ENTER)
610 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
611 else if (subtype == MONO_AOT_WRAPPER_MONITOR_EXIT)
612 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
613 else if (subtype == MONO_AOT_WRAPPER_MONITOR_ENTER_V4)
614 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
616 g_assert_not_reached ();
617 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
618 g_assert (orig_method);
619 mono_method_desc_free (desc);
620 ref->method = mono_monitor_get_fast_path (orig_method);
624 case MONO_WRAPPER_RUNTIME_INVOKE: {
626 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
630 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
633 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
634 int subtype = decode_value (p, &p);
636 if (subtype == MONO_AOT_WRAPPER_ELEMENT_ADDR) {
637 int rank = decode_value (p, &p);
638 int elem_size = decode_value (p, &p);
640 ref->method = mono_marshal_get_array_address (rank, elem_size);
642 g_assert_not_reached ();
646 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
647 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
652 /* This should only happen when looking for an extra method */
654 if (mono_marshal_method_from_wrapper (target) == m)
655 ref->method = target;
660 case MONO_WRAPPER_CASTCLASS: {
661 int subtype = decode_value (p, &p);
663 if (subtype == MONO_AOT_WRAPPER_CASTCLASS_WITH_CACHE)
664 ref->method = mono_marshal_get_castclass_with_cache ();
665 else if (subtype == MONO_AOT_WRAPPER_ISINST_WITH_CACHE)
666 ref->method = mono_marshal_get_isinst_with_cache ();
668 g_assert_not_reached ();
672 g_assert_not_reached ();
674 } else if (image_index == MONO_AOT_METHODREF_WRAPPER_NAME) {
677 /* Can't decode these */
678 g_assert_not_reached ();
679 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
680 image_index = decode_value (p, &p);
681 ref->token = decode_value (p, &p);
683 image = load_image (module, image_index, TRUE);
686 } else if (image_index == MONO_AOT_METHODREF_GINST) {
688 MonoGenericContext ctx;
691 * These methods do not have a token which resolves them, so we
692 * resolve them immediately.
694 klass = decode_klass_ref (module, p, &p);
698 if (target && target->klass != klass)
701 image_index = decode_value (p, &p);
702 ref->token = decode_value (p, &p);
704 image = load_image (module, image_index, TRUE);
708 ref->method = mono_get_method_full (image, ref->token, NULL, NULL);
712 memset (&ctx, 0, sizeof (ctx));
714 if (FALSE && klass->generic_class) {
715 ctx.class_inst = klass->generic_class->context.class_inst;
716 ctx.method_inst = NULL;
718 ref->method = mono_class_inflate_generic_method_full (ref->method, klass, &ctx);
721 memset (&ctx, 0, sizeof (ctx));
723 if (!decode_generic_context (module, &ctx, p, &p))
726 ref->method = mono_class_inflate_generic_method_full (ref->method, klass, &ctx);
727 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
731 klass = decode_klass_ref (module, p, &p);
734 method_type = decode_value (p, &p);
735 switch (method_type) {
737 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
740 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
743 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
746 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
749 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
752 g_assert_not_reached ();
755 g_assert (image_index < MONO_AOT_METHODREF_MIN);
756 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
758 image = load_image (module, image_index, TRUE);
771 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
773 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
777 * decode_resolve_method_ref_with_target:
779 * Similar to decode_method_ref, but resolve and return the method itself.
782 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
787 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
794 return mono_get_method (ref.image, ref.token, NULL);
798 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
800 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
804 create_cache_structure (void)
810 home = g_get_home_dir ();
814 tmp = g_build_filename (home, ".mono", NULL);
815 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
816 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
820 err = mkdir (tmp, 0777);
823 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
829 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
830 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
831 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
835 err = mkdir (tmp, 0777);
838 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
847 * load_aot_module_from_cache:
849 * Experimental code to AOT compile loaded assemblies on demand.
852 * - Add environment variable MONO_AOT_CACHE_OPTIONS
853 * - Add options for controlling the cache size
854 * - Handle full cache by deleting old assemblies lru style
855 * - Add options for excluding assemblies during development
856 * - Maybe add a threshold after an assembly is AOT compiled
857 * - invoking a new mono process is a security risk
858 * - recompile the AOT module if one of its dependencies changes
861 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
863 char *fname, *cmd, *tmp2, *aot_options;
872 if (assembly->image->dynamic)
875 create_cache_structure ();
877 home = g_get_home_dir ();
879 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
880 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
884 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
885 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
888 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
890 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
892 aot_options = g_strdup_printf ("outfile=%s", fname);
894 if (spawn_compiler) {
895 /* FIXME: security */
896 /* FIXME: Has to pass the assembly loading path to the child process */
897 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
899 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
901 #if !defined(HOST_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
903 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
904 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
906 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
913 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
915 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
917 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
921 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
923 g_free (aot_options);
930 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
934 guint16 *table, *entry;
938 /* The first entry points to the hash */
942 table_size = table [0];
945 hash = mono_metadata_str_hash (name) % table_size;
947 entry = &table [hash * 2];
949 /* Search the hash for the index into the globals table */
951 while (entry [0] != 0) {
952 guint32 index = entry [0] - 1;
953 guint32 next = entry [1];
955 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
957 if (!strcmp (globals [index * 2], name)) {
958 global_index = index;
963 entry = &table [next * 2];
969 if (global_index != -1)
970 *value = globals [global_index * 2 + 1];
974 char *err = mono_dl_symbol (module, name, value);
982 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, char **out_msg)
986 gboolean usable = TRUE;
990 if (strcmp (assembly->image->guid, info->assembly_guid)) {
991 msg = g_strdup_printf ("doesn't match assembly");
995 build_info = mono_get_runtime_build_info ();
996 if (strlen (info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
997 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1000 g_free (build_info);
1002 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1004 if (mono_aot_only && !full_aot) {
1005 msg = g_strdup_printf ("not compiled with --aot=full");
1008 if (!mono_aot_only && full_aot) {
1009 msg = g_strdup_printf ("compiled with --aot=full");
1013 /* mono_arch_find_imt_method () requires this */
1014 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1015 msg = g_strdup_printf ("compiled against LLVM");
1018 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1019 msg = g_strdup_printf ("not compiled against LLVM");
1023 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1024 msg = g_strdup_printf ("not compiled for debugging");
1030 if (info->gc_name_index != -1) {
1031 char *gc_name = (char*)&blob [info->gc_name_index];
1032 const char *current_gc_name = mono_gc_get_gc_name ();
1034 if (strcmp (current_gc_name, gc_name) != 0) {
1035 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1045 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1048 MonoAotModule *amodule;
1050 gboolean usable = TRUE;
1051 char *version_symbol = NULL;
1053 gpointer *globals = NULL;
1054 MonoAotFileInfo *info = NULL;
1057 gboolean do_load_image = TRUE;
1059 if (mono_compile_aot)
1062 if (assembly->image->aot_module)
1064 * Already loaded. This can happen because the assembly loading code might invoke
1065 * the assembly load hooks multiple times for the same assembly.
1069 if (assembly->image->dynamic)
1072 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS)
1076 if (static_aot_modules)
1077 info = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1083 /* Statically linked AOT module */
1085 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1086 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1087 globals = info->globals;
1090 sofile = load_aot_module_from_cache (assembly, &aot_name);
1093 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
1095 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1098 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
1104 if (!sofile && !globals) {
1105 if (mono_aot_only) {
1106 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1114 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1115 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1118 if (version_symbol) {
1119 /* Old file format */
1120 version = atoi (version_symbol);
1123 version = info->version;
1126 if (version != MONO_AOT_FILE_VERSION) {
1127 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
1130 usable = check_usable (assembly, info, &msg);
1134 if (mono_aot_only) {
1135 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
1138 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is unusable: %s.\n", aot_name, msg);
1143 mono_dl_close (sofile);
1144 assembly->image->aot_module = NULL;
1149 g_assert (info->double_align == __alignof__ (double));
1150 g_assert (info->long_align == __alignof__ (gint64));
1154 amodule = g_new0 (MonoAotModule, 1);
1155 amodule->aot_name = aot_name;
1156 amodule->assembly = assembly;
1158 memcpy (&amodule->info, info, sizeof (*info));
1160 amodule->got = amodule->info.got;
1161 amodule->got [0] = assembly->image;
1162 amodule->globals = globals;
1163 amodule->sofile = sofile;
1164 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
1165 amodule->blob = blob;
1167 /* Read image table */
1169 guint32 table_len, i;
1172 table = info->image_table;
1175 table_len = *(guint32*)table;
1176 table += sizeof (guint32);
1177 amodule->image_table = g_new0 (MonoImage*, table_len);
1178 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
1179 amodule->image_guids = g_new0 (char*, table_len);
1180 amodule->image_table_len = table_len;
1181 for (i = 0; i < table_len; ++i) {
1182 MonoAssemblyName *aname = &(amodule->image_names [i]);
1184 aname->name = g_strdup (table);
1185 table += strlen (table) + 1;
1186 amodule->image_guids [i] = g_strdup (table);
1187 table += strlen (table) + 1;
1189 aname->culture = g_strdup (table);
1190 table += strlen (table) + 1;
1191 memcpy (aname->public_key_token, table, strlen (table) + 1);
1192 table += strlen (table) + 1;
1194 table = ALIGN_PTR_TO (table, 8);
1195 aname->flags = *(guint32*)table;
1197 aname->major = *(guint32*)table;
1199 aname->minor = *(guint32*)table;
1201 aname->build = *(guint32*)table;
1203 aname->revision = *(guint32*)table;
1208 amodule->code_offsets = info->code_offsets;
1209 amodule->code = info->methods;
1211 /* Mask out thumb interop bit */
1212 amodule->code = (void*)((mgreg_t)amodule->code & ~1);
1214 amodule->code_end = info->methods_end;
1215 amodule->method_info_offsets = info->method_info_offsets;
1216 amodule->ex_info_offsets = info->ex_info_offsets;
1217 amodule->class_info_offsets = info->class_info_offsets;
1218 amodule->class_name_table = info->class_name_table;
1219 amodule->extra_method_table = info->extra_method_table;
1220 amodule->extra_method_info_offsets = info->extra_method_info_offsets;
1221 amodule->got_info_offsets = info->got_info_offsets;
1222 amodule->unwind_info = info->unwind_info;
1223 amodule->mem_end = info->mem_end;
1224 amodule->mem_begin = amodule->code;
1225 amodule->plt = info->plt;
1226 amodule->plt_end = info->plt_end;
1227 amodule->mono_eh_frame = info->mono_eh_frame;
1228 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = info->specific_trampolines;
1229 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = info->static_rgctx_trampolines;
1230 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = info->imt_thunks;
1231 amodule->thumb_end = info->thumb_end;
1233 if (make_unreadable) {
1234 #ifndef TARGET_WIN32
1236 guint8 *page_start, *page_end;
1239 addr = amodule->mem_begin;
1240 len = amodule->mem_end - amodule->mem_begin;
1242 /* Round down in both directions to avoid modifying data which is not ours */
1243 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
1244 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
1245 if (page_end > page_start) {
1246 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
1247 g_assert (err == 0);
1254 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1255 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1257 g_hash_table_insert (aot_modules, assembly, amodule);
1260 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1262 assembly->image->aot_module = amodule;
1264 if (mono_aot_only) {
1265 if (mono_defaults.corlib) {
1266 /* The second got slot contains the mscorlib got addr */
1267 MonoAotModule *mscorlib_amodule = mono_defaults.corlib->aot_module;
1269 amodule->got [1] = mscorlib_amodule->got;
1271 amodule->got [1] = amodule->got;
1275 if (mono_gc_is_moving ()) {
1278 memset (&ji, 0, sizeof (ji));
1279 ji.type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
1281 amodule->got [2] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
1285 * Since we store methoddef and classdef tokens when referring to methods/classes in
1286 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1287 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1288 * non-lazily, since we can't handle out-of-date errors later.
1289 * The cached class info also depends on the exact assemblies.
1291 #if defined(__native_client__)
1292 /* TODO: Don't 'load_image' on mscorlib due to a */
1293 /* recursive loading problem. This should be */
1294 /* removed if mscorlib is loaded from disk. */
1295 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
1296 do_load_image = TRUE;
1298 do_load_image = FALSE;
1301 if (do_load_image) {
1302 for (i = 0; i < amodule->image_table_len; ++i)
1303 load_image (amodule, i, FALSE);
1306 if (amodule->out_of_date) {
1307 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);
1308 if (mono_aot_only) {
1309 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);
1314 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1318 * mono_aot_register_globals:
1320 * This is called by the ctor function in AOT images compiled with the
1321 * 'no-dlsym' option.
1324 mono_aot_register_globals (gpointer *globals)
1326 g_assert_not_reached ();
1330 * mono_aot_register_module:
1332 * This should be called by embedding code to register AOT modules statically linked
1333 * into the executable. AOT_INFO should be the value of the
1334 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1337 mono_aot_register_module (gpointer *aot_info)
1341 MonoAotFileInfo *info = (gpointer)aot_info;
1343 g_assert (info->version == MONO_AOT_FILE_VERSION);
1345 globals = info->globals;
1348 aname = info->assembly_name;
1350 /* This could be called before startup */
1354 if (!static_aot_modules)
1355 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1357 g_hash_table_insert (static_aot_modules, aname, info);
1364 mono_aot_init (void)
1366 InitializeCriticalSection (&aot_mutex);
1367 aot_modules = g_hash_table_new (NULL, NULL);
1369 mono_install_assembly_load_hook (load_aot_module, NULL);
1371 if (g_getenv ("MONO_LASTAOT"))
1372 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
1373 if (g_getenv ("MONO_AOT_CACHE"))
1374 use_aot_cache = TRUE;
1378 mono_aot_cleanup (void)
1380 if (aot_jit_icall_hash)
1381 g_hash_table_destroy (aot_jit_icall_hash);
1383 g_hash_table_destroy (aot_modules);
1387 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1393 info->vtable_size = decode_value (buf, &buf);
1394 if (info->vtable_size == -1)
1397 flags = decode_value (buf, &buf);
1398 info->ghcimpl = (flags >> 0) & 0x1;
1399 info->has_finalize = (flags >> 1) & 0x1;
1400 info->has_cctor = (flags >> 2) & 0x1;
1401 info->has_nested_classes = (flags >> 3) & 0x1;
1402 info->blittable = (flags >> 4) & 0x1;
1403 info->has_references = (flags >> 5) & 0x1;
1404 info->has_static_refs = (flags >> 6) & 0x1;
1405 info->no_special_static_fields = (flags >> 7) & 0x1;
1406 info->is_generic_container = (flags >> 8) & 0x1;
1408 if (info->has_cctor) {
1409 res = decode_method_ref (module, &ref, buf, &buf);
1412 info->cctor_token = ref.token;
1414 if (info->has_finalize) {
1415 res = decode_method_ref (module, &ref, buf, &buf);
1418 info->finalize_image = ref.image;
1419 info->finalize_token = ref.token;
1422 info->instance_size = decode_value (buf, &buf);
1423 info->class_size = decode_value (buf, &buf);
1424 info->packing_size = decode_value (buf, &buf);
1425 info->min_align = decode_value (buf, &buf);
1433 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1436 MonoClass *klass = vtable->klass;
1437 MonoAotModule *amodule = klass->image->aot_module;
1439 MonoCachedClassInfo class_info;
1444 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
1447 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
1450 err = decode_cached_class_info (amodule, &class_info, p, &p);
1454 for (i = 0; i < slot; ++i)
1455 decode_method_ref (amodule, &ref, p, &p);
1457 res = decode_method_ref (amodule, &ref, p, &p);
1460 if (ref.no_aot_trampoline)
1463 if (mono_metadata_token_index (ref.token) == 0)
1466 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
1470 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1472 MonoAotModule *amodule = klass->image->aot_module;
1476 if (klass->rank || !amodule)
1479 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
1481 err = decode_cached_class_info (amodule, res, p, &p);
1489 * mono_aot_get_class_from_name:
1491 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1492 * using a cache stored in the AOT file.
1493 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1495 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1499 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1501 MonoAotModule *amodule = image->aot_module;
1502 guint16 *table, *entry;
1505 char full_name_buf [1024];
1507 const char *name2, *name_space2;
1509 guint32 cols [MONO_TYPEDEF_SIZE];
1510 GHashTable *nspace_table;
1512 if (!amodule || !amodule->class_name_table)
1519 /* First look in the cache */
1520 if (!amodule->name_cache)
1521 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1522 nspace_table = g_hash_table_lookup (amodule->name_cache, name_space);
1524 *klass = g_hash_table_lookup (nspace_table, name);
1531 table_size = amodule->class_name_table [0];
1532 table = amodule->class_name_table + 1;
1534 if (name_space [0] == '\0')
1535 full_name = g_strdup_printf ("%s", name);
1537 if (strlen (name_space) + strlen (name) < 1000) {
1538 sprintf (full_name_buf, "%s.%s", name_space, name);
1539 full_name = full_name_buf;
1541 full_name = g_strdup_printf ("%s.%s", name_space, name);
1544 hash = mono_metadata_str_hash (full_name) % table_size;
1545 if (full_name != full_name_buf)
1548 entry = &table [hash * 2];
1550 if (entry [0] != 0) {
1551 t = &image->tables [MONO_TABLE_TYPEDEF];
1554 guint32 index = entry [0];
1555 guint32 next = entry [1];
1556 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1558 name_table_accesses ++;
1560 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1562 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1563 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1565 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1567 *klass = mono_class_get (image, token);
1572 nspace_table = g_hash_table_lookup (amodule->name_cache, name_space);
1573 if (!nspace_table) {
1574 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1575 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
1577 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1584 entry = &table [next * 2];
1597 * decode_mono_eh_frame:
1599 * Decode the EH information emitted by our modified LLVM compiler and construct a
1600 * MonoJitInfo structure from it.
1601 * LOCKING: Acquires the domain lock.
1604 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
1605 MonoMethod *method, guint8 *code,
1606 MonoJitExceptionInfo *clauses, int num_clauses,
1607 int extra_size, GSList **nesting,
1608 int *this_reg, int *this_offset)
1611 guint8 *fde, *cie, *code_start, *code_end;
1612 int version, fde_count;
1614 int i, j, pos, left, right, offset, offset1, offset2, code_len;
1615 MonoJitExceptionInfo *ei;
1616 guint32 fde_len, ei_len, nested_len, nindex;
1617 gpointer *type_info;
1619 MonoLLVMFDEInfo info;
1621 g_assert (amodule->mono_eh_frame);
1623 p = amodule->mono_eh_frame;
1625 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
1629 g_assert (version == 1);
1631 p = ALIGN_PTR_TO (p, 4);
1633 fde_count = *(guint32*)p;
1637 /* There is +1 entry in the table */
1638 cie = p + ((fde_count + 1) * 8);
1640 /* Binary search in the table to find the entry for code */
1641 offset = code - amodule->mono_eh_frame;
1646 pos = (left + right) / 2;
1648 offset1 = table [(pos * 2)];
1649 if (pos + 1 == fde_count)
1651 offset2 = amodule->code_end - amodule->code;
1653 offset2 = table [(pos + 1) * 2];
1655 if (offset < offset1)
1657 else if (offset >= offset2)
1663 code_start = amodule->mono_eh_frame + table [(pos * 2)];
1664 /* This won't overflow because there is +1 entry in the table */
1665 code_end = amodule->mono_eh_frame + table [(pos * 2) + 2];
1666 code_len = code_end - code_start;
1668 g_assert (code >= code_start && code < code_end);
1670 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
1671 /* This won't overflow because there is +1 entry in the table */
1672 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
1674 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
1676 ei_len = info.ex_info_len;
1677 type_info = info.type_info;
1678 *this_reg = info.this_reg;
1679 *this_offset = info.this_offset;
1681 /* Count number of nested clauses */
1683 for (i = 0; i < ei_len; ++i) {
1684 /* This might be unaligned */
1685 gint32 cindex1 = read32 (type_info [i]);
1688 for (l = nesting [cindex1]; l; l = l->next) {
1689 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
1691 for (j = 0; j < ei_len; ++j) {
1692 gint32 cindex2 = read32 (type_info [j]);
1694 if (cindex2 == nesting_cindex)
1701 * LLVM might represent one IL region with multiple regions, so have to
1702 * allocate a new JI.
1705 mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO + (sizeof (MonoJitExceptionInfo) * (ei_len + nested_len)) + extra_size);
1707 jinfo->code_size = code_len;
1708 jinfo->used_regs = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
1709 jinfo->method = method;
1710 jinfo->code_start = code;
1711 jinfo->domain_neutral = 0;
1712 /* This signals that used_regs points to a normal cached unwind info */
1713 jinfo->from_aot = 0;
1714 jinfo->num_clauses = ei_len + nested_len;
1716 for (i = 0; i < ei_len; ++i) {
1718 * orig_jinfo contains the original IL exception info saved by the AOT
1719 * compiler, we have to combine that with the information produced by LLVM
1721 /* The type_info entries contain IL clause indexes */
1722 int clause_index = read32 (type_info [i]);
1723 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
1724 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
1726 g_assert (clause_index < num_clauses);
1727 jei->flags = orig_jei->flags;
1728 jei->data.catch_class = orig_jei->data.catch_class;
1730 jei->try_start = ei [i].try_start;
1731 jei->try_end = ei [i].try_end;
1732 jei->handler_start = ei [i].handler_start;
1734 /* Make sure we transition to thumb when a handler starts */
1735 if (amodule->thumb_end && (guint8*)jei->handler_start < amodule->thumb_end)
1736 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
1739 /* See exception_cb () in mini-llvm.c as to why this is needed */
1741 for (i = 0; i < ei_len; ++i) {
1742 gint32 cindex1 = read32 (type_info [i]);
1745 for (l = nesting [cindex1]; l; l = l->next) {
1746 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
1748 for (j = 0; j < ei_len; ++j) {
1749 gint32 cindex2 = read32 (type_info [j]);
1751 if (cindex2 == nesting_cindex) {
1753 * The try interval comes from the nested clause, everything else from the
1756 memcpy (&jinfo->clauses [nindex], &jinfo->clauses [j], sizeof (MonoJitExceptionInfo));
1757 jinfo->clauses [nindex].try_start = jinfo->clauses [i].try_start;
1758 jinfo->clauses [nindex].try_end = jinfo->clauses [i].try_end;
1764 g_assert (nindex == ei_len + nested_len);
1770 * LOCKING: Acquires the domain lock.
1773 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
1774 MonoMethod *method, guint8* ex_info, guint8 *addr,
1775 guint8 *code, guint32 code_len)
1777 int i, buf_len, num_clauses;
1779 guint used_int_regs, flags;
1780 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes;
1781 gboolean from_llvm, has_gc_map;
1783 int generic_info_size, try_holes_info_size, num_holes, this_reg = 0, this_offset = 0;
1785 /* Load the method info from the AOT file */
1788 flags = decode_value (p, &p);
1789 has_generic_jit_info = (flags & 1) != 0;
1790 has_dwarf_unwind_info = (flags & 2) != 0;
1791 has_clauses = (flags & 4) != 0;
1792 has_seq_points = (flags & 8) != 0;
1793 from_llvm = (flags & 16) != 0;
1794 has_try_block_holes = (flags & 32) != 0;
1795 has_gc_map = (flags & 64) != 0;
1797 if (has_dwarf_unwind_info) {
1800 offset = decode_value (p, &p);
1801 g_assert (offset < (1 << 30));
1802 used_int_regs = offset;
1804 used_int_regs = decode_value (p, &p);
1806 if (has_generic_jit_info)
1807 generic_info_size = sizeof (MonoGenericJitInfo);
1809 generic_info_size = 0;
1811 if (has_try_block_holes) {
1812 num_holes = decode_value (p, &p);
1813 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
1815 num_holes = try_holes_info_size = 0;
1817 /* Exception table */
1819 num_clauses = decode_value (p, &p);
1824 MonoJitExceptionInfo *clauses;
1828 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
1831 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
1832 nesting = g_new0 (GSList*, num_clauses);
1834 for (i = 0; i < num_clauses; ++i) {
1835 MonoJitExceptionInfo *ei = &clauses [i];
1837 ei->flags = decode_value (p, &p);
1839 if (decode_value (p, &p))
1840 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
1842 /* Read the list of nesting clauses */
1844 int nesting_index = decode_value (p, &p);
1845 if (nesting_index == -1)
1847 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
1851 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, clauses, num_clauses, generic_info_size + try_holes_info_size, nesting, &this_reg, &this_offset);
1852 jinfo->from_llvm = 1;
1855 for (i = 0; i < num_clauses; ++i)
1856 g_slist_free (nesting [i]);
1860 mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO + (sizeof (MonoJitExceptionInfo) * num_clauses) + generic_info_size + try_holes_info_size);
1861 jinfo->num_clauses = num_clauses;
1863 for (i = 0; i < jinfo->num_clauses; ++i) {
1864 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1866 ei->flags = decode_value (p, &p);
1868 ei->exvar_offset = decode_value (p, &p);
1870 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
1871 ei->data.filter = code + decode_value (p, &p);
1873 if (decode_value (p, &p))
1874 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
1877 ei->try_start = code + decode_value (p, &p);
1878 ei->try_end = code + decode_value (p, &p);
1879 ei->handler_start = code + decode_value (p, &p);
1882 jinfo->code_size = code_len;
1883 jinfo->used_regs = used_int_regs;
1884 jinfo->method = method;
1885 jinfo->code_start = code;
1886 jinfo->domain_neutral = 0;
1887 jinfo->from_aot = 1;
1890 if (has_generic_jit_info) {
1891 MonoGenericJitInfo *gi;
1893 jinfo->has_generic_jit_info = 1;
1895 gi = mono_jit_info_get_generic_jit_info (jinfo);
1899 gi->has_this = this_reg != -1;
1900 gi->this_reg = this_reg;
1901 gi->this_offset = this_offset;
1903 gi->has_this = decode_value (p, &p);
1904 gi->this_reg = decode_value (p, &p);
1905 gi->this_offset = decode_value (p, &p);
1908 /* This currently contains no data */
1909 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1911 jinfo->method = decode_resolve_method_ref (amodule, p, &p);
1914 if (has_try_block_holes) {
1915 MonoTryBlockHoleTableJitInfo *table;
1917 jinfo->has_try_block_holes = 1;
1919 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
1922 table->num_holes = (guint16)num_holes;
1923 for (i = 0; i < num_holes; ++i) {
1924 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
1925 hole->clause = decode_value (p, &p);
1926 hole->length = decode_value (p, &p);
1927 hole->offset = decode_value (p, &p);
1931 if (has_seq_points) {
1932 MonoSeqPointInfo *seq_points;
1933 int il_offset, native_offset, last_il_offset, last_native_offset, j;
1935 int len = decode_value (p, &p);
1937 seq_points = g_malloc0 (sizeof (MonoSeqPointInfo) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (SeqPoint));
1938 seq_points->len = len;
1939 last_il_offset = last_native_offset = 0;
1940 for (i = 0; i < len; ++i) {
1941 SeqPoint *sp = &seq_points->seq_points [i];
1942 il_offset = last_il_offset + decode_value (p, &p);
1943 native_offset = last_native_offset + decode_value (p, &p);
1945 sp->il_offset = il_offset;
1946 sp->native_offset = native_offset;
1948 sp->next_len = decode_value (p, &p);
1949 sp->next = g_new (int, sp->next_len);
1950 for (j = 0; j < sp->next_len; ++j)
1951 sp->next [j] = decode_value (p, &p);
1953 last_il_offset = il_offset;
1954 last_native_offset = native_offset;
1957 mono_domain_lock (domain);
1958 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
1959 mono_domain_unlock (domain);
1962 /* Load debug info */
1963 buf_len = decode_value (p, &p);
1964 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1968 int map_size = decode_value (p, &p);
1969 /* The GC map requires 4 bytes of alignment */
1970 while ((guint64)(gsize)p % 4)
1976 if (amodule != jinfo->method->klass->image->aot_module) {
1979 ji_to_amodule = g_hash_table_new (NULL, NULL);
1980 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
1988 * mono_aot_get_unwind_info:
1990 * Return a pointer to the DWARF unwind info belonging to JI.
1993 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
1995 MonoAotModule *amodule = ji->method->klass->image->aot_module;
1997 guint8 *code = ji->code_start;
2000 g_assert (ji->from_aot);
2002 if (!(code >= amodule->code && code <= amodule->code_end)) {
2003 /* ji belongs to a different aot module than amodule */
2005 g_assert (ji_to_amodule);
2006 amodule = g_hash_table_lookup (ji_to_amodule, ji);
2008 g_assert (code >= amodule->code && code <= amodule->code_end);
2012 p = amodule->unwind_info + ji->used_regs;
2013 *unwind_info_len = decode_value (p, &p);
2017 static G_GNUC_UNUSED int
2018 compare_ints (const void *a, const void *b)
2020 return *(gint32*)a - *(gint32*)b;
2024 msort_code_offsets_internal (gint32 *array, int lo, int hi, gint32 *scratch)
2026 int mid = (lo + hi) / 2;
2033 for (i = lo; i < hi; ++i)
2034 if (array [(i * 2)] > array [(i * 2) + 2])
2037 /* Already sorted */
2041 msort_code_offsets_internal (array, lo, mid, scratch);
2042 msort_code_offsets_internal (array, mid + 1, hi, scratch);
2044 if (array [mid * 2] < array [(mid + 1) * 2])
2050 for (i = lo; i <= hi; i ++) {
2051 if (t_lo <= mid && ((t_hi > hi) || array [t_lo * 2] < array [t_hi * 2])) {
2052 scratch [(i * 2)] = array [t_lo * 2];
2053 scratch [(i * 2) + 1] = array [(t_lo *2) + 1];
2056 scratch [(i * 2)] = array [t_hi * 2];
2057 scratch [(i * 2) + 1] = array [(t_hi *2) + 1];
2061 for (i = lo; i <= hi; ++i) {
2062 array [(i * 2)] = scratch [i * 2];
2063 array [(i * 2) + 1] = scratch [(i * 2) + 1];
2068 msort_code_offsets (gint32 *array, int len)
2072 scratch = g_new (gint32, len * 2);
2073 msort_code_offsets_internal (array, 0, len - 1, scratch);
2078 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2080 int pos, left, right, offset, offset1, offset2, code_len;
2081 int method_index, table_len, is_wrapper;
2083 MonoAotModule *amodule = image->aot_module;
2086 guint8 *code, *ex_info, *p;
2088 int nmethods = amodule->info.nmethods;
2089 gint32 *code_offsets;
2095 if (domain != mono_get_root_domain ())
2099 offset = (guint8*)addr - amodule->code;
2101 /* Compute a sorted table mapping code offsets to method indexes. */
2102 if (!amodule->sorted_code_offsets) {
2103 code_offsets = g_new0 (gint32, nmethods * 2);
2105 for (i = 0; i < nmethods; ++i) {
2106 /* Skip the -1 entries to speed up sorting */
2107 if (amodule->code_offsets [i] == 0xffffffff)
2109 code_offsets [(offsets_len * 2)] = amodule->code_offsets [i];
2110 code_offsets [(offsets_len *2) + 1] = i;
2113 /* Use a merge sort as this is mostly sorted */
2114 msort_code_offsets (code_offsets, offsets_len);
2115 //qsort (code_offsets, offsets_len, sizeof (gint32) * 2, compare_ints);
2116 for (i = 0; i < offsets_len -1; ++i)
2117 g_assert (code_offsets [(i * 2)] <= code_offsets [(i + 1) * 2]);
2119 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_code_offsets, code_offsets, NULL) != NULL)
2120 /* Somebody got in before us */
2121 g_free (code_offsets);
2122 amodule->sorted_code_offsets_len = offsets_len;
2125 code_offsets = amodule->sorted_code_offsets;
2126 offsets_len = amodule->sorted_code_offsets_len;
2128 /* Binary search in the sorted_code_offsets table */
2130 right = offsets_len;
2132 pos = (left + right) / 2;
2134 offset1 = code_offsets [(pos * 2)];
2135 if (pos + 1 == offsets_len)
2136 offset2 = amodule->code_end - amodule->code;
2138 offset2 = code_offsets [(pos + 1) * 2];
2140 if (offset < offset1)
2142 else if (offset >= offset2)
2148 g_assert (offset >= code_offsets [(pos * 2)]);
2149 if (pos + 1 < offsets_len)
2150 g_assert (offset < code_offsets [((pos + 1) * 2)]);
2151 method_index = code_offsets [(pos * 2) + 1];
2153 code = &amodule->code [amodule->code_offsets [method_index]];
2154 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
2156 if (pos == offsets_len - 1)
2157 code_len = amodule->code_end - code;
2159 code_len = code_offsets [(pos + 1) * 2] - code_offsets [pos * 2];
2161 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
2163 /* Might be a wrapper/extra method */
2164 if (amodule->extra_methods) {
2166 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
2173 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
2175 * This is hit for extra methods which are called directly, so they are
2176 * not in amodule->extra_methods.
2178 table_len = amodule->extra_method_info_offsets [0];
2179 table = amodule->extra_method_info_offsets + 1;
2186 pos = ((left + right) / 2);
2188 g_assert (pos < table_len);
2190 if (table [pos * 2] < method_index)
2192 else if (table [pos * 2] > method_index)
2198 p = amodule->blob + table [(pos * 2) + 1];
2199 is_wrapper = decode_value (p, &p);
2200 g_assert (!is_wrapper);
2201 method = decode_resolve_method_ref (amodule, p, &p);
2204 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
2205 method = mono_get_method (image, token, NULL);
2212 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
2214 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, addr, code, code_len);
2216 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
2217 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
2219 /* Add it to the normal JitInfo tables */
2220 mono_jit_info_table_add (domain, jinfo);
2226 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
2234 case MONO_PATCH_INFO_METHOD:
2235 case MONO_PATCH_INFO_METHOD_JUMP:
2236 case MONO_PATCH_INFO_ICALL_ADDR:
2237 case MONO_PATCH_INFO_METHOD_RGCTX: {
2241 res = decode_method_ref (aot_module, &ref, p, &p);
2245 if (!ref.method && !mono_aot_only && !ref.no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (ref.token) == MONO_TABLE_METHOD)) {
2246 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
2247 ji->type = MONO_PATCH_INFO_ABS;
2251 ji->data.method = ref.method;
2253 ji->data.method = mono_get_method (ref.image, ref.token, NULL);
2254 g_assert (ji->data.method);
2255 mono_class_init (ji->data.method->klass);
2259 case MONO_PATCH_INFO_INTERNAL_METHOD:
2260 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2261 guint32 len = decode_value (p, &p);
2263 ji->data.name = (char*)p;
2267 case MONO_PATCH_INFO_METHODCONST:
2269 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
2270 if (!ji->data.method)
2273 case MONO_PATCH_INFO_VTABLE:
2274 case MONO_PATCH_INFO_CLASS:
2275 case MONO_PATCH_INFO_IID:
2276 case MONO_PATCH_INFO_ADJUSTED_IID:
2278 ji->data.klass = decode_klass_ref (aot_module, p, &p);
2279 if (!ji->data.klass)
2282 case MONO_PATCH_INFO_CLASS_INIT:
2283 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2284 ji->data.klass = decode_klass_ref (aot_module, p, &p);
2285 if (!ji->data.klass)
2288 case MONO_PATCH_INFO_IMAGE:
2289 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
2290 if (!ji->data.image)
2293 case MONO_PATCH_INFO_FIELD:
2294 case MONO_PATCH_INFO_SFLDA:
2296 ji->data.field = decode_field_info (aot_module, p, &p);
2297 if (!ji->data.field)
2300 case MONO_PATCH_INFO_SWITCH:
2301 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
2302 ji->data.table->table_size = decode_value (p, &p);
2303 table = mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
2304 ji->data.table->table = (MonoBasicBlock**)table;
2305 for (i = 0; i < ji->data.table->table_size; i++)
2306 table [i] = (gpointer)(gssize)decode_value (p, &p);
2308 case MONO_PATCH_INFO_R4: {
2311 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
2312 val = decode_value (p, &p);
2313 *(float*)ji->data.target = *(float*)&val;
2316 case MONO_PATCH_INFO_R8: {
2320 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
2322 val [0] = decode_value (p, &p);
2323 val [1] = decode_value (p, &p);
2324 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
2325 *(double*)ji->data.target = *(double*)&v;
2328 case MONO_PATCH_INFO_LDSTR:
2329 image = load_image (aot_module, decode_value (p, &p), TRUE);
2332 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
2334 case MONO_PATCH_INFO_RVA:
2335 case MONO_PATCH_INFO_DECLSEC:
2336 case MONO_PATCH_INFO_LDTOKEN:
2337 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2339 image = load_image (aot_module, decode_value (p, &p), TRUE);
2342 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
2344 ji->data.token->has_context = decode_value (p, &p);
2345 if (ji->data.token->has_context) {
2346 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
2351 case MONO_PATCH_INFO_EXC_NAME:
2352 ji->data.klass = decode_klass_ref (aot_module, p, &p);
2353 if (!ji->data.klass)
2355 ji->data.name = ji->data.klass->name;
2357 case MONO_PATCH_INFO_METHOD_REL:
2358 ji->data.offset = decode_value (p, &p);
2360 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2361 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2362 case MONO_PATCH_INFO_MONITOR_ENTER:
2363 case MONO_PATCH_INFO_MONITOR_EXIT:
2364 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
2365 case MONO_PATCH_INFO_CASTCLASS_CACHE:
2367 case MONO_PATCH_INFO_RGCTX_FETCH: {
2369 MonoJumpInfoRgctxEntry *entry;
2371 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
2372 entry->method = decode_resolve_method_ref (aot_module, p, &p);
2373 entry->in_mrgctx = decode_value (p, &p);
2374 entry->info_type = decode_value (p, &p);
2375 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
2376 entry->data->type = decode_value (p, &p);
2378 res = decode_patch (aot_module, mp, entry->data, p, &p);
2381 ji->data.rgctx_entry = entry;
2384 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2386 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE: {
2387 MonoJumpInfoImtTramp *imt_tramp = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoImtTramp));
2389 imt_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
2390 imt_tramp->vt_offset = decode_value (p, &p);
2392 ji->data.imt_tramp = imt_tramp;
2396 g_warning ("unhandled type %d", ji->type);
2397 g_assert_not_reached ();
2408 static MonoJumpInfo*
2409 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
2410 guint32 **got_slots,
2411 guint8 *buf, guint8 **endbuf)
2413 MonoJumpInfo *patches;
2419 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
2421 *got_slots = g_malloc (sizeof (guint32) * n_patches);
2423 for (pindex = 0; pindex < n_patches; ++pindex) {
2424 MonoJumpInfo *ji = &patches [pindex];
2429 got_offset = decode_value (p, &p);
2431 if (aot_module->got [got_offset]) {
2432 /* Already loaded */
2433 //printf ("HIT!\n");
2435 shared_p = aot_module->blob + mono_aot_get_offset (aot_module->got_info_offsets, got_offset);
2437 ji->type = decode_value (shared_p, &shared_p);
2439 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
2444 (*got_slots) [pindex] = got_offset;
2451 g_free (*got_slots);
2458 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
2461 * Jump addresses cannot be patched by the trampoline code since it
2462 * does not have access to the caller's address. Instead, we collect
2463 * the addresses of the GOT slots pointing to a method, and patch
2464 * them after the method has been compiled.
2466 MonoJitDomainInfo *info = domain_jit_info (domain);
2469 mono_domain_lock (domain);
2470 if (!info->jump_target_got_slot_hash)
2471 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
2472 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
2473 list = g_slist_prepend (list, got_slot);
2474 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
2475 mono_domain_unlock (domain);
2481 * Load the method identified by METHOD_INDEX from the AOT image. Return a
2482 * pointer to the native code of the method, or NULL if not found.
2483 * METHOD might not be set if the caller only has the image/token info.
2486 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
2489 gboolean from_plt = method == NULL;
2491 int i, pindex, n_patches, used_strings;
2492 gboolean keep_patches = TRUE;
2494 MonoJitInfo *jinfo = NULL;
2495 guint8 *code, *info;
2497 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
2500 if ((domain != mono_get_root_domain ()) && (!(amodule->info.opts & MONO_OPT_SHARED)))
2501 /* Non shared AOT code can't be used in other appdomains */
2504 if (amodule->out_of_date)
2507 if (amodule->code_offsets [method_index] == 0xffffffff) {
2508 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2512 method = mono_get_method (image, token, NULL);
2513 full_name = mono_method_full_name (method, TRUE);
2514 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
2520 code = &amodule->code [amodule->code_offsets [method_index]];
2522 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
2524 if (amodule->thumb_end && code < amodule->thumb_end) {
2525 /* Convert this into a thumb address */
2526 g_assert ((amodule->code_offsets [method_index] & 0x1) == 0);
2527 code = &amodule->code [amodule->code_offsets [method_index] + 1];
2531 if (!amodule->methods_loaded)
2532 amodule->methods_loaded = g_new0 (guint32, amodule->info.nmethods + 1);
2535 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
2538 if (mono_last_aot_method != -1) {
2539 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
2541 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
2543 method = mono_get_method (image, token, NULL);
2545 char *name = mono_method_full_name (method, TRUE);
2546 printf ("LAST AOT METHOD: %s.\n", name);
2549 printf ("LAST AOT METHOD: %p %d\n", code, method_index);
2557 klass = method->klass;
2558 decode_klass_ref (amodule, p, &p);
2560 klass = decode_klass_ref (amodule, p, &p);
2563 if (amodule->info.opts & MONO_OPT_SHARED)
2564 used_strings = decode_value (p, &p);
2568 for (i = 0; i < used_strings; i++) {
2569 guint token = decode_value (p, &p);
2570 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (token));
2573 if (amodule->info.opts & MONO_OPT_SHARED)
2574 keep_patches = FALSE;
2576 n_patches = decode_value (p, &p);
2578 keep_patches = FALSE;
2581 MonoJumpInfo *patches;
2587 mp = mono_mempool_new ();
2589 patches = load_patch_info (amodule, mp, n_patches, &got_slots, p, &p);
2590 if (patches == NULL)
2593 for (pindex = 0; pindex < n_patches; ++pindex) {
2594 MonoJumpInfo *ji = &patches [pindex];
2596 if (!amodule->got [got_slots [pindex]]) {
2597 amodule->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
2598 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
2599 amodule->got [got_slots [pindex]] = mono_create_ftnptr (domain, amodule->got [got_slots [pindex]]);
2600 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
2601 register_jump_target_got_slot (domain, ji->data.method, &(amodule->got [got_slots [pindex]]));
2603 ji->type = MONO_PATCH_INFO_NONE;
2609 mono_mempool_destroy (mp);
2612 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2616 method = mono_get_method (image, token, NULL);
2618 full_name = mono_method_full_name (method, TRUE);
2621 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
2623 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND method %s [%p - %p %p]\n", full_name, code, code + jinfo->code_size, info);
2629 InterlockedIncrement (&mono_jit_stats.methods_aot);
2631 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2635 if (method && method->wrapper_type)
2636 g_hash_table_insert (amodule->method_to_code, method, code);
2640 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
2644 method = mono_get_method (image, token, NULL);
2647 mono_profiler_method_jit (method);
2648 jinfo = mono_jit_info_table_find (domain, (char*)code);
2650 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
2653 if (from_plt && klass && !klass->generic_container)
2654 mono_runtime_class_init (mono_class_vtable (domain, klass));
2659 /* FIXME: The space in domain->mp is wasted */
2660 if (amodule->info.opts & MONO_OPT_SHARED)
2661 /* No need to cache patches */
2662 mono_mempool_destroy (mp);
2671 find_extra_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, const char *name)
2673 guint32 table_size, entry_size, hash;
2674 guint32 *table, *entry;
2676 static guint32 n_extra_decodes;
2681 table_size = amodule->extra_method_table [0];
2682 table = amodule->extra_method_table + 1;
2685 hash = mono_aot_method_hash (method) % table_size;
2687 entry = &table [hash * entry_size];
2694 guint32 key = entry [0];
2695 guint32 value = entry [1];
2696 guint32 next = entry [entry_size - 1];
2699 int is_wrapper_name;
2701 p = amodule->blob + key;
2702 is_wrapper_name = decode_value (p, &p);
2703 if (is_wrapper_name) {
2704 int wrapper_type = decode_value (p, &p);
2705 if (wrapper_type == method->wrapper_type && !strcmp (name, (char*)p)) {
2713 if (!amodule->method_ref_to_method)
2714 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
2715 m = g_hash_table_lookup (amodule->method_ref_to_method, p);
2718 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
2721 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
2730 /* Special case: wrappers of shared generic methods */
2731 if (m && method->wrapper_type && m->wrapper_type == m->wrapper_type &&
2732 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2733 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
2734 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
2736 if (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2) {
2742 /* Methods decoded needlessly */
2744 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
2750 entry = &table [next * entry_size];
2759 add_module_cb (gpointer key, gpointer value, gpointer user_data)
2761 g_ptr_array_add ((GPtrArray*)user_data, value);
2765 * find_extra_method:
2767 * Try finding METHOD in the extra_method table in all AOT images.
2768 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
2769 * module where the method was found.
2772 find_extra_method (MonoMethod *method, MonoAotModule **out_amodule)
2779 if (method->wrapper_type)
2780 name = mono_aot_wrapper_name (method);
2782 /* Try the method's module first */
2783 *out_amodule = method->klass->image->aot_module;
2784 index = find_extra_method_in_amodule (method->klass->image->aot_module, method, name);
2785 if (index != 0xffffff) {
2791 * Try all other modules.
2792 * This is needed because generic instances klass->image points to the image
2793 * containing the generic definition, but the native code is generated to the
2794 * AOT image which contains the reference.
2797 /* Make a copy to avoid doing the search inside the aot lock */
2798 modules = g_ptr_array_new ();
2800 g_hash_table_foreach (aot_modules, add_module_cb, modules);
2804 for (i = 0; i < modules->len; ++i) {
2805 MonoAotModule *amodule = g_ptr_array_index (modules, i);
2807 if (amodule != method->klass->image->aot_module)
2808 index = find_extra_method_in_amodule (amodule, method, name);
2809 if (index != 0xffffff) {
2810 *out_amodule = amodule;
2815 g_ptr_array_free (modules, TRUE);
2822 * mono_aot_get_method:
2824 * Return a pointer to the AOTed native code for METHOD if it can be found,
2826 * On platforms with function pointers, this doesn't return a function pointer.
2829 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2831 MonoClass *klass = method->klass;
2832 guint32 method_index;
2833 MonoAotModule *amodule = klass->image->aot_module;
2839 if (amodule->out_of_date)
2842 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2843 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2844 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2845 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2849 * Use the original method instead of its invoke-with-check wrapper.
2850 * This is not a problem when using full-aot, since it doesn't support
2853 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
2854 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
2856 g_assert (klass->inited);
2858 /* Find method index */
2859 if (method->is_inflated && mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE)) {
2861 * For generic methods, we store the fully shared instance in place of the
2864 method = mono_method_get_declaring_generic_method (method);
2865 method_index = mono_metadata_token_index (method->token) - 1;
2866 } else if (method->is_inflated || !method->token) {
2867 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
2869 code = g_hash_table_lookup (amodule->method_to_code, method);
2874 method_index = find_extra_method (method, &amodule);
2876 * Special case the ICollection<T> wrappers for arrays, as they cannot
2877 * be statically enumerated, and each wrapper ends up calling the same
2880 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
2881 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
2883 code = mono_aot_get_method (domain, m);
2885 if (mono_method_needs_static_rgctx_invoke (m, FALSE)) {
2886 code = mono_create_static_rgctx_trampoline (m, mono_create_ftnptr (domain, code));
2887 /* The call above returns an ftnptr */
2888 code = mono_get_addr_from_ftnptr (code);
2896 * Special case Array.GetGenericValueImpl which is a generic icall.
2897 * Generic sharing currently can't handle it, but the icall returns data using
2898 * an out parameter, so the managed-to-native wrappers can share the same code.
2900 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
2902 MonoGenericContext ctx;
2903 MonoType *args [16];
2905 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
2906 /* Avoid recursion */
2909 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
2912 memset (&ctx, 0, sizeof (ctx));
2913 args [0] = &mono_defaults.object_class->byval_arg;
2914 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2916 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE);
2919 * Get the code for the <object> instantiation which should be emitted into
2920 * the mscorlib aot image by the AOT compiler.
2922 code = mono_aot_get_method (domain, m);
2927 /* Same for CompareExchange<T> */
2928 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib && !strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Interlocked") && !strcmp (method->name, "CompareExchange") && MONO_TYPE_IS_REFERENCE (mono_method_signature (method)->params [1])) {
2930 MonoGenericContext ctx;
2931 MonoType *args [16];
2932 gpointer iter = NULL;
2934 while ((m = mono_class_get_methods (method->klass, &iter))) {
2935 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, "CompareExchange"))
2940 memset (&ctx, 0, sizeof (ctx));
2941 args [0] = &mono_defaults.object_class->byval_arg;
2942 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2944 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE);
2946 /* Avoid recursion */
2951 * Get the code for the <object> instantiation which should be emitted into
2952 * the mscorlib aot image by the AOT compiler.
2954 code = mono_aot_get_method (domain, m);
2959 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_impl_full (method, FALSE, TRUE)) {
2960 /* Partial sharing */
2961 method_index = find_extra_method (mini_get_shared_method (method), &amodule);
2964 if (method_index == 0xffffff) {
2965 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2968 full_name = mono_method_full_name (method, TRUE);
2969 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
2975 if (method_index == 0xffffff)
2978 /* Needed by find_jit_info */
2980 if (!amodule->extra_methods)
2981 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2982 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
2986 method_index = mono_metadata_token_index (method->token) - 1;
2989 return load_method (domain, amodule, klass->image, method, method->token, method_index);
2993 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2997 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2999 MonoAotModule *aot_module = image->aot_module;
3005 method_index = mono_metadata_token_index (token) - 1;
3007 return load_method (domain, aot_module, image, NULL, token, method_index);
3013 } IsGotEntryUserData;
3016 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
3018 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
3019 MonoAotModule *aot_module = (MonoAotModule*)value;
3021 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
3026 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
3028 IsGotEntryUserData user_data;
3033 user_data.addr = addr;
3034 user_data.res = FALSE;
3036 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
3039 return user_data.res;
3044 MonoAotModule *module;
3045 } FindAotModuleUserData;
3048 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
3050 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
3051 MonoAotModule *aot_module = (MonoAotModule*)value;
3053 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
3054 data->module = aot_module;
3057 static inline MonoAotModule*
3058 find_aot_module (guint8 *code)
3060 FindAotModuleUserData user_data;
3065 /* Reading these need no locking */
3066 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
3069 user_data.addr = code;
3070 user_data.module = NULL;
3073 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
3076 return user_data.module;
3080 mono_aot_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr)
3083 * Since AOT code is only used in the root domain,
3084 * mono_domain_get () != mono_get_root_domain () means the calling method
3085 * is AppDomain:InvokeInDomain, so this is the same check as in
3086 * mono_method_same_domain () but without loading the metadata for the method.
3088 if (mono_domain_get () == mono_get_root_domain ())
3089 mono_arch_patch_plt_entry (code, got, regs, addr);
3093 * mono_aot_plt_resolve:
3095 * This function is called by the entries in the PLT to resolve the actual method that
3096 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
3097 * Returns NULL if the something cannot be loaded.
3100 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
3102 #ifdef MONO_ARCH_AOT_SUPPORTED
3103 guint8 *p, *target, *plt_entry;
3105 MonoAotModule *module = (MonoAotModule*)aot_module;
3106 gboolean res, no_ftnptr = FALSE;
3109 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
3111 p = &module->blob [plt_info_offset];
3113 ji.type = decode_value (p, &p);
3115 mp = mono_mempool_new_size (512);
3116 res = decode_patch (module, mp, &ji, p, &p);
3119 mono_mempool_destroy (mp);
3124 * Avoid calling resolve_patch_target in the full-aot case if possible, since
3125 * it would create a trampoline, and we don't need that.
3126 * We could do this only if the method does not need the special handling
3127 * in mono_magic_trampoline ().
3129 if (mono_aot_only && ji.type == MONO_PATCH_INFO_METHOD && !ji.data.method->is_generic && !mono_method_check_context_used (ji.data.method) && !(ji.data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) &&
3130 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE)) {
3131 target = mono_jit_compile_method (ji.data.method);
3134 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
3138 * The trampoline expects us to return a function descriptor on platforms which use
3139 * it, but resolve_patch_target returns a direct function pointer for some type of
3140 * patches, so have to translate between the two.
3141 * FIXME: Clean this up, but how ?
3143 if (ji.type == MONO_PATCH_INFO_ABS || ji.type == MONO_PATCH_INFO_INTERNAL_METHOD || ji.type == MONO_PATCH_INFO_CLASS_INIT || ji.type == MONO_PATCH_INFO_ICALL_ADDR || ji.type == MONO_PATCH_INFO_JIT_ICALL_ADDR || ji.type == MONO_PATCH_INFO_RGCTX_FETCH) {
3144 /* These should already have a function descriptor */
3145 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
3146 /* Our function descriptors have a 0 environment, gcc created ones don't */
3147 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
3148 g_assert (((gpointer*)target) [2] == 0);
3151 } else if (!no_ftnptr) {
3152 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
3153 g_assert (((gpointer*)target) [2] != 0);
3155 target = mono_create_ftnptr (mono_domain_get (), target);
3158 mono_mempool_destroy (mp);
3160 /* Patch the PLT entry with target which might be the actual method not a trampoline */
3161 plt_entry = mono_aot_get_plt_entry (code);
3162 g_assert (plt_entry);
3163 mono_aot_patch_plt_entry (plt_entry, module->got, NULL, target);
3167 g_assert_not_reached ();
3175 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
3176 * method in the module is loaded to avoid committing memory by writing to it.
3177 * LOCKING: Assumes the AOT lock is held.
3180 init_plt (MonoAotModule *amodule)
3185 if (amodule->plt_inited)
3188 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
3191 * Initialize the PLT entries in the GOT to point to the default targets.
3194 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
3195 for (i = 1; i < amodule->info.plt_size; ++i)
3196 /* All the default entries point to the AOT trampoline */
3197 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
3199 amodule->plt_inited = TRUE;
3203 * mono_aot_get_plt_entry:
3205 * Return the address of the PLT entry called by the code at CODE if exists.
3208 mono_aot_get_plt_entry (guint8 *code)
3210 MonoAotModule *amodule = find_aot_module (code);
3211 guint8 *target = NULL;
3217 if (amodule->thumb_end && code < amodule->thumb_end) {
3218 return mono_arm_get_thumb_plt_entry (code);
3222 #ifdef MONO_ARCH_AOT_SUPPORTED
3223 target = mono_arch_get_call_target (code);
3225 g_assert_not_reached ();
3228 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
3235 * mono_aot_get_plt_info_offset:
3237 * Return the PLT info offset belonging to the plt entry called by CODE.
3240 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
3242 guint8 *plt_entry = mono_aot_get_plt_entry (code);
3244 g_assert (plt_entry);
3246 /* The offset is embedded inside the code after the plt entry */
3247 #ifdef MONO_ARCH_AOT_SUPPORTED
3248 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
3250 g_assert_not_reached ();
3256 mono_create_ftnptr_malloc (guint8 *code)
3258 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
3259 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
3261 ftnptr->code = code;
3272 * mono_aot_register_jit_icall:
3274 * Register a JIT icall which is called by trampolines in full-aot mode. This should
3275 * be called from mono_arch_init () during startup.
3278 mono_aot_register_jit_icall (const char *name, gpointer addr)
3280 /* No need for locking */
3281 if (!aot_jit_icall_hash)
3282 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
3283 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
3289 * Load the function named NAME from the aot image.
3292 load_function (MonoAotModule *amodule, const char *name)
3296 int n_patches, pindex;
3302 symbol = g_strdup_printf ("%s", name);
3303 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
3306 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
3308 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
3312 symbol = g_strdup_printf ("%s_p", name);
3313 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
3316 /* Nothing to patch */
3319 p = amodule->blob + *(guint32*)p;
3321 /* Similar to mono_aot_load_method () */
3323 n_patches = decode_value (p, &p);
3326 MonoJumpInfo *patches;
3329 mp = mono_mempool_new ();
3331 patches = load_patch_info (amodule, mp, n_patches, &got_slots, p, &p);
3334 for (pindex = 0; pindex < n_patches; ++pindex) {
3335 MonoJumpInfo *ji = &patches [pindex];
3338 if (amodule->got [got_slots [pindex]])
3342 * When this code is executed, the runtime may not be initalized yet, so
3343 * resolve the patch info by hand.
3345 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
3346 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
3347 target = mono_get_lmf_addr;
3348 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
3349 target = mono_thread_force_interruption_checkpoint;
3350 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
3351 target = mono_exception_from_token;
3352 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
3353 target = mono_get_throw_exception ();
3354 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
3355 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
3356 target = (gpointer)mono_get_trampoline_func (tramp_type2);
3357 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
3358 /* atoll is needed because the the offset is unsigned */
3362 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
3363 g_assert (res == 1);
3364 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
3365 target = mono_create_ftnptr_malloc (target);
3366 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_enter")) {
3367 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
3368 target = mono_create_ftnptr_malloc (target);
3369 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_exit")) {
3370 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
3371 target = mono_create_ftnptr_malloc (target);
3372 } else if (!strcmp (ji->data.name, "specific_trampoline_generic_class_init")) {
3373 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), NULL);
3374 target = mono_create_ftnptr_malloc (target);
3375 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
3376 target = mono_thread_get_and_clear_pending_exception;
3377 } else if (strstr (ji->data.name, "generic_trampoline_")) {
3378 target = mono_aot_get_trampoline (ji->data.name);
3379 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
3380 /* Registered by mono_arch_init () */
3381 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
3383 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
3384 g_assert_not_reached ();
3388 /* Hopefully the code doesn't have patches which need method or
3391 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
3395 amodule->got [got_slots [pindex]] = target;
3400 mono_mempool_destroy (mp);
3407 * Return the trampoline identified by NAME from the mscorlib AOT file.
3408 * On ppc64, this returns a function descriptor.
3411 mono_aot_get_trampoline (const char *name)
3414 MonoAotModule *amodule;
3416 image = mono_defaults.corlib;
3419 amodule = image->aot_module;
3422 return mono_create_ftnptr_malloc (load_function (amodule, name));
3425 /* Return a given kind of trampoline */
3427 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
3429 MonoAotModule *amodule;
3430 int index, tramp_size;
3433 /* Currently, we keep all trampolines in the mscorlib AOT image */
3434 image = mono_defaults.corlib;
3439 amodule = image->aot_module;
3442 *out_amodule = amodule;
3444 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type])
3445 g_error ("Ran out of trampolines of type %d in '%s' (%d)\n", tramp_type, image->name, amodule->info.num_trampolines [tramp_type]);
3447 index = amodule->trampoline_index [tramp_type] ++;
3451 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
3453 tramp_size = amodule->info.trampoline_size [tramp_type];
3456 *out_tramp_size = tramp_size;
3458 return amodule->trampolines [tramp_type] + (index * tramp_size);
3462 * Return a specific trampoline from the AOT file.
3465 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
3467 MonoAotModule *amodule;
3468 guint32 got_offset, tramp_size;
3469 guint8 *code, *tramp;
3470 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
3471 static gboolean inited;
3472 static guint32 num_trampolines;
3478 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
3487 if (!generic_trampolines [tramp_type]) {
3490 symbol = mono_get_generic_trampoline_name (tramp_type);
3491 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
3495 tramp = generic_trampolines [tramp_type];
3498 code = get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
3500 amodule->got [got_offset] = tramp;
3501 amodule->got [got_offset + 1] = arg1;
3504 *code_len = tramp_size;
3510 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
3512 MonoAotModule *amodule;
3516 code = get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
3518 amodule->got [got_offset] = ctx;
3519 amodule->got [got_offset + 1] = addr;
3521 /* The caller expects an ftnptr */
3522 return mono_create_ftnptr (mono_domain_get (), code);
3526 mono_aot_get_unbox_trampoline (MonoMethod *method)
3528 guint32 method_index = mono_metadata_token_index (method->token) - 1;
3529 MonoAotModule *amodule;
3533 if (method->is_inflated && !mono_method_is_generic_sharable_impl (method, FALSE)) {
3534 guint32 index = find_extra_method (method, &amodule);
3535 g_assert (index != 0xffffff);
3537 symbol = g_strdup_printf ("ut_%d", index);
3539 amodule = method->klass->image->aot_module;
3542 symbol = g_strdup_printf ("ut_%d", method_index);
3544 code = load_function (amodule, symbol);
3547 /* The caller expects an ftnptr */
3548 return mono_create_ftnptr (mono_domain_get (), code);
3552 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
3557 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
3558 code = load_function (mono_defaults.corlib->aot_module, symbol);
3560 /* The caller expects an ftnptr */
3561 return mono_create_ftnptr (mono_domain_get (), code);
3565 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
3570 int i, index, real_count;
3571 MonoAotModule *amodule;
3573 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
3576 for (i = 0; i < count; ++i) {
3577 MonoIMTCheckItem *item = imt_entries [i];
3579 if (item->is_equals)
3583 /* Save the entries into an array */
3584 buf = mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
3586 for (i = 0; i < count; ++i) {
3587 MonoIMTCheckItem *item = imt_entries [i];
3589 if (!item->is_equals)
3592 g_assert (item->key);
3594 buf [(index * 2)] = item->key;
3595 if (item->has_target_code) {
3596 gpointer *p = mono_domain_alloc (domain, sizeof (gpointer));
3597 *p = item->value.target_code;
3598 buf [(index * 2) + 1] = p;
3600 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
3604 buf [(index * 2)] = NULL;
3605 buf [(index * 2) + 1] = fail_tramp;
3607 amodule->got [got_offset] = buf;
3613 * mono_aot_set_make_unreadable:
3615 * Set whenever to make all mmaped memory unreadable. In conjuction with a
3616 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
3619 mono_aot_set_make_unreadable (gboolean unreadable)
3623 make_unreadable = unreadable;
3625 if (make_unreadable && !inited) {
3626 mono_counters_register ("AOT pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
3631 MonoAotModule *module;
3636 find_map (gpointer key, gpointer value, gpointer user_data)
3638 MonoAotModule *module = (MonoAotModule*)value;
3639 FindMapUserData *data = (FindMapUserData*)user_data;
3642 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
3643 data->module = module;
3646 static MonoAotModule*
3647 find_module_for_addr (void *ptr)
3649 FindMapUserData data;
3651 if (!make_unreadable)
3655 data.ptr = (guint8*)ptr;
3658 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
3665 * mono_aot_is_pagefault:
3667 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
3668 * within memory allocated by this module.
3671 mono_aot_is_pagefault (void *ptr)
3673 if (!make_unreadable)
3677 * Not signal safe, but SIGSEGV's are synchronous, and
3678 * this is only turned on by a MONO_DEBUG option.
3680 return find_module_for_addr (ptr) != NULL;
3684 * mono_aot_handle_pagefault:
3686 * Handle a pagefault caused by an unreadable page by making it readable again.
3689 mono_aot_handle_pagefault (void *ptr)
3691 #ifndef PLATFORM_WIN32
3692 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
3696 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
3697 g_assert (res == 0);
3708 mono_aot_init (void)
3713 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
3719 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
3725 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
3731 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
3737 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3743 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
3749 mono_aot_get_plt_entry (guint8 *code)
3755 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
3761 mono_aot_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr)
3766 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
3772 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
3774 g_assert_not_reached ();
3780 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
3782 g_assert_not_reached ();
3787 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
3789 g_assert_not_reached ();
3794 mono_aot_get_trampoline (const char *name)
3796 g_assert_not_reached ();
3801 mono_aot_get_unbox_trampoline (MonoMethod *method)
3803 g_assert_not_reached ();
3808 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
3810 g_assert_not_reached ();
3815 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
3817 g_assert_not_reached ();
3822 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3824 g_assert_not_reached ();
3829 mono_aot_register_jit_icall (const char *name, gpointer addr)