2 * image.c: Routines for manipulating an image stored in an
3 * extended PE/COFF file.
6 * Miguel de Icaza (miguel@ximian.com)
7 * Paolo Molaro (lupus@ximian.com)
9 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
10 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
21 #include "mono-endian.h"
22 #include "tabledefs.h"
23 #include "tokentype.h"
24 #include "metadata-internals.h"
25 #include "profiler-private.h"
29 #include <mono/io-layer/io-layer.h>
30 #include <mono/utils/mono-logger-internals.h>
31 #include <mono/utils/mono-path.h>
32 #include <mono/utils/mono-mmap.h>
33 #include <mono/utils/mono-io-portability.h>
34 #include <mono/utils/atomic.h>
35 #include <mono/metadata/class-internals.h>
36 #include <mono/metadata/assembly.h>
37 #include <mono/metadata/object-internals.h>
38 #include <mono/metadata/security-core-clr.h>
39 #include <mono/metadata/verify-internals.h>
40 #include <mono/metadata/verify.h>
41 #include <mono/metadata/image-internals.h>
42 #include <sys/types.h>
48 #define INVALID_ADDRESS 0xffffffff
50 // Amount initially reserved in each image's mempool.
51 // FIXME: This number is arbitrary, a more practical number should be found
52 #define INITIAL_IMAGE_SIZE 512
55 * The "loaded images" hashes keep track of the various assemblies and netmodules loaded
56 * There are four, for all combinations of [look up by path or assembly name?]
57 * and [normal or reflection-only load?, as in Assembly.ReflectionOnlyLoad]
61 IMAGES_HASH_PATH_REFONLY = 1,
63 IMAGES_HASH_NAME_REFONLY = 3,
66 static GHashTable *loaded_images_hashes [4] = {NULL, NULL, NULL, NULL};
68 static GHashTable *get_loaded_images_hash (gboolean refonly)
70 int idx = refonly ? IMAGES_HASH_PATH_REFONLY : IMAGES_HASH_PATH;
71 return loaded_images_hashes [idx];
74 static GHashTable *get_loaded_images_by_name_hash (gboolean refonly)
76 int idx = refonly ? IMAGES_HASH_NAME_REFONLY : IMAGES_HASH_NAME;
77 return loaded_images_hashes [idx];
80 static gboolean debug_assembly_unload = FALSE;
82 #define mono_images_lock() if (mutex_inited) mono_os_mutex_lock (&images_mutex)
83 #define mono_images_unlock() if (mutex_inited) mono_os_mutex_unlock (&images_mutex)
84 static gboolean mutex_inited;
85 static mono_mutex_t images_mutex;
87 static void install_pe_loader (void);
89 typedef struct ImageUnloadHook ImageUnloadHook;
90 struct ImageUnloadHook {
91 MonoImageUnloadFunc func;
95 static GSList *image_unload_hooks;
98 mono_install_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data)
100 ImageUnloadHook *hook;
102 g_return_if_fail (func != NULL);
104 hook = g_new0 (ImageUnloadHook, 1);
106 hook->user_data = user_data;
107 image_unload_hooks = g_slist_prepend (image_unload_hooks, hook);
111 mono_remove_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data)
114 ImageUnloadHook *hook;
116 for (l = image_unload_hooks; l; l = l->next) {
117 hook = (ImageUnloadHook *)l->data;
119 if (hook->func == func && hook->user_data == user_data) {
121 image_unload_hooks = g_slist_delete_link (image_unload_hooks, l);
128 mono_image_invoke_unload_hook (MonoImage *image)
131 ImageUnloadHook *hook;
133 for (l = image_unload_hooks; l; l = l->next) {
134 hook = (ImageUnloadHook *)l->data;
136 hook->func (image, hook->user_data);
140 static GSList *image_loaders;
143 mono_install_image_loader (const MonoImageLoader *loader)
145 image_loaders = g_slist_prepend (image_loaders, (MonoImageLoader*)loader);
148 /* returns offset relative to image->raw_data */
150 mono_cli_rva_image_map (MonoImage *image, guint32 addr)
152 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
153 const int top = iinfo->cli_section_count;
154 MonoSectionTable *tables = iinfo->cli_section_tables;
157 if (image->metadata_only)
160 for (i = 0; i < top; i++){
161 if ((addr >= tables->st_virtual_address) &&
162 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
164 if (image->is_module_handle)
167 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
171 return INVALID_ADDRESS;
175 * mono_images_rva_map:
176 * @image: a MonoImage
177 * @addr: relative virtual address (RVA)
179 * This is a low-level routine used by the runtime to map relative
180 * virtual address (RVA) into their location in memory.
182 * Returns: the address in memory for the given RVA, or NULL if the
183 * RVA is not valid for this image.
186 mono_image_rva_map (MonoImage *image, guint32 addr)
188 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
189 const int top = iinfo->cli_section_count;
190 MonoSectionTable *tables = iinfo->cli_section_tables;
194 if (image->is_module_handle) {
195 if (addr && addr < image->raw_data_len)
196 return image->raw_data + addr;
202 for (i = 0; i < top; i++){
203 if ((addr >= tables->st_virtual_address) &&
204 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
205 if (!iinfo->cli_sections [i]) {
206 if (!mono_image_ensure_section_idx (image, i))
209 return (char*)iinfo->cli_sections [i] +
210 (addr - tables->st_virtual_address);
220 * Initialize the global variables used by this module.
223 mono_images_init (void)
225 mono_os_mutex_init_recursive (&images_mutex);
228 for(hash_idx = 0; hash_idx < IMAGES_HASH_COUNT; hash_idx++)
229 loaded_images_hashes [hash_idx] = g_hash_table_new (g_str_hash, g_str_equal);
231 debug_assembly_unload = g_getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
233 install_pe_loader ();
239 * mono_images_cleanup:
241 * Free all resources used by this module.
244 mono_images_cleanup (void)
249 mono_os_mutex_destroy (&images_mutex);
251 // If an assembly image is still loaded at shutdown, this could indicate managed code is still running.
252 // Reflection-only images being still loaded doesn't indicate anything as harmful, so we don't check for it.
253 g_hash_table_iter_init (&iter, get_loaded_images_hash (FALSE));
254 while (g_hash_table_iter_next (&iter, NULL, (void**)&image))
255 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly image '%s' still loaded at shutdown.", image->name);
258 for(hash_idx = 0; hash_idx < IMAGES_HASH_COUNT; hash_idx++)
259 g_hash_table_destroy (loaded_images_hashes [hash_idx]);
261 mutex_inited = FALSE;
265 * mono_image_ensure_section_idx:
266 * @image: The image we are operating on
267 * @section: section number that we will load/map into memory
269 * This routine makes sure that we have an in-memory copy of
270 * an image section (.text, .rsrc, .data).
272 * Returns: TRUE on success
275 mono_image_ensure_section_idx (MonoImage *image, int section)
277 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
278 MonoSectionTable *sect;
280 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
282 if (iinfo->cli_sections [section] != NULL)
285 sect = &iinfo->cli_section_tables [section];
287 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
290 if (image->is_module_handle)
291 iinfo->cli_sections [section] = image->raw_data + sect->st_virtual_address;
294 /* FIXME: we ignore the writable flag since we don't patch the binary */
295 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
300 * mono_image_ensure_section:
301 * @image: The image we are operating on
302 * @section: section name that we will load/map into memory
304 * This routine makes sure that we have an in-memory copy of
305 * an image section (.text, .rsrc, .data).
307 * Returns: TRUE on success
310 mono_image_ensure_section (MonoImage *image, const char *section)
312 MonoCLIImageInfo *ii = (MonoCLIImageInfo *)image->image_info;
315 for (i = 0; i < ii->cli_section_count; i++){
316 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
319 return mono_image_ensure_section_idx (image, i);
325 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
327 const int top = iinfo->cli_header.coff.coff_sections;
330 iinfo->cli_section_count = top;
331 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
332 iinfo->cli_sections = g_new0 (void *, top);
334 for (i = 0; i < top; i++){
335 MonoSectionTable *t = &iinfo->cli_section_tables [i];
337 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
339 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
340 offset += sizeof (MonoSectionTable);
342 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
343 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
344 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
345 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
346 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
347 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
348 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
349 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
350 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
351 t->st_flags = GUINT32_FROM_LE (t->st_flags);
353 /* consistency checks here */
360 mono_image_load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
364 offset = mono_cli_rva_image_map (image, iinfo->cli_header.datadir.pe_cli_header.rva);
365 if (offset == INVALID_ADDRESS)
368 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
370 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
372 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
373 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
374 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
375 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
376 SWAP32 (iinfo->cli_cli_header.ch_size);
377 SWAP32 (iinfo->cli_cli_header.ch_flags);
378 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
379 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
380 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
381 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
382 SWAPPDE (iinfo->cli_cli_header.ch_resources);
383 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
384 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
385 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
386 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
387 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
388 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
389 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
390 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
391 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
392 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
393 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
394 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
395 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
400 /* Catch new uses of the fields that are supposed to be zero */
402 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
403 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
404 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
405 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
406 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
407 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
408 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
409 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
410 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
413 * No need to scare people who are testing this, I am just
414 * labelling this as a LAMESPEC
416 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
424 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
426 guint32 offset, size;
432 offset = mono_cli_rva_image_map (image, iinfo->cli_cli_header.ch_metadata.rva);
433 if (offset == INVALID_ADDRESS)
436 size = iinfo->cli_cli_header.ch_metadata.size;
438 if (offset + size > image->raw_data_len)
440 image->raw_metadata = image->raw_data + offset;
442 /* 24.2.1: Metadata root starts here */
443 ptr = image->raw_metadata;
445 if (strncmp (ptr, "BSJB", 4) == 0){
446 guint32 version_string_len;
449 image->md_version_major = read16 (ptr);
451 image->md_version_minor = read16 (ptr);
454 version_string_len = read32 (ptr);
456 image->version = g_strndup (ptr, version_string_len);
457 ptr += version_string_len;
458 pad = ptr - image->raw_metadata;
460 ptr += 4 - (pad % 4);
464 /* skip over flags */
467 streams = read16 (ptr);
470 for (i = 0; i < streams; i++){
471 if (strncmp (ptr + 8, "#~", 3) == 0){
472 image->heap_tables.data = image->raw_metadata + read32 (ptr);
473 image->heap_tables.size = read32 (ptr + 4);
475 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
476 image->heap_strings.data = image->raw_metadata + read32 (ptr);
477 image->heap_strings.size = read32 (ptr + 4);
479 } else if (strncmp (ptr + 8, "#US", 4) == 0){
480 image->heap_us.data = image->raw_metadata + read32 (ptr);
481 image->heap_us.size = read32 (ptr + 4);
483 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
484 image->heap_blob.data = image->raw_metadata + read32 (ptr);
485 image->heap_blob.size = read32 (ptr + 4);
487 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
488 image->heap_guid.data = image->raw_metadata + read32 (ptr);
489 image->heap_guid.size = read32 (ptr + 4);
491 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
492 image->heap_tables.data = image->raw_metadata + read32 (ptr);
493 image->heap_tables.size = read32 (ptr + 4);
495 image->uncompressed_metadata = TRUE;
496 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly '%s' has the non-standard metadata heap #-.\nRecompile it correctly (without the /incremental switch or in Release mode).\n", image->name);
497 } else if (strncmp (ptr + 8, "#Pdb", 5) == 0) {
498 image->heap_pdb.data = image->raw_metadata + read32 (ptr);
499 image->heap_pdb.size = read32 (ptr + 4);
502 g_message ("Unknown heap type: %s\n", ptr + 8);
503 ptr += 8 + strlen (ptr + 8) + 1;
505 pad = ptr - image->raw_metadata;
507 ptr += 4 - (pad % 4);
510 i = ((MonoImageLoader*)image->loader)->load_tables (image);
511 g_assert (image->heap_guid.data);
513 if (!image->metadata_only) {
514 g_assert (image->heap_guid.size >= 16);
516 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
518 /* PPDB files have no guid */
519 guint8 empty_guid [16];
521 memset (empty_guid, 0, sizeof (empty_guid));
523 image->guid = mono_guid_to_string (empty_guid);
530 * Load representation of logical metadata tables, from the "#~" stream
533 load_tables (MonoImage *image)
535 const char *heap_tables = image->heap_tables.data;
538 int valid = 0, table;
541 heap_sizes = heap_tables [6];
542 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
543 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
544 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
546 valid_mask = read64 (heap_tables + 8);
547 rows = (const guint32 *) (heap_tables + 24);
549 for (table = 0; table < 64; table++){
550 if ((valid_mask & ((guint64) 1 << table)) == 0){
551 if (table > MONO_TABLE_LAST)
553 image->tables [table].rows = 0;
556 if (table > MONO_TABLE_LAST) {
557 g_warning("bits in valid must be zero above 0x37 (II - 23.1.6)");
559 image->tables [table].rows = read32 (rows);
565 image->tables_base = (heap_tables + 24) + (4 * valid);
567 /* They must be the same */
568 g_assert ((const void *) image->tables_base == (const void *) rows);
570 mono_metadata_compute_table_bases (image);
575 mono_image_load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
577 if (!load_metadata_ptrs (image, iinfo))
580 return load_tables (image);
584 mono_image_check_for_module_cctor (MonoImage *image)
586 MonoTableInfo *t, *mt;
587 t = &image->tables [MONO_TABLE_TYPEDEF];
588 mt = &image->tables [MONO_TABLE_METHOD];
589 if (image_is_dynamic (image)) {
591 image->checked_module_cctor = TRUE;
595 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
596 const char *name = mono_metadata_string_heap (image, nameidx);
597 if (strcmp (name, "<Module>") == 0) {
598 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
601 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
603 last_method = mt->rows;
604 for (; first_method < last_method; first_method++) {
605 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
606 name = mono_metadata_string_heap (image, nameidx);
607 if (strcmp (name, ".cctor") == 0) {
608 image->has_module_cctor = TRUE;
609 image->checked_module_cctor = TRUE;
615 image->has_module_cctor = FALSE;
616 image->checked_module_cctor = TRUE;
620 load_modules (MonoImage *image)
627 t = &image->tables [MONO_TABLE_MODULEREF];
628 image->modules = g_new0 (MonoImage *, t->rows);
629 image->modules_loaded = g_new0 (gboolean, t->rows);
630 image->module_count = t->rows;
634 * mono_image_load_module:
636 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
637 * it cannot be loaded.
640 mono_image_load_module (MonoImage *image, int idx)
643 MonoTableInfo *file_table;
646 gboolean refonly = image->ref_only;
647 GList *list_iter, *valid_modules = NULL;
648 MonoImageOpenStatus status;
650 if ((image->module_count == 0) || (idx > image->module_count || idx <= 0))
652 if (image->modules_loaded [idx - 1])
653 return image->modules [idx - 1];
655 file_table = &image->tables [MONO_TABLE_FILE];
656 for (i = 0; i < file_table->rows; i++) {
657 guint32 cols [MONO_FILE_SIZE];
658 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
659 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
661 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
664 t = &image->tables [MONO_TABLE_MODULEREF];
665 base_dir = g_path_get_dirname (image->name);
670 guint32 cols [MONO_MODULEREF_SIZE];
671 /* if there is no file table, we try to load the module... */
672 int valid = file_table->rows == 0;
674 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
675 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
676 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
677 /* be safe with string dups, but we could just compare string indexes */
678 if (strcmp (list_iter->data, name) == 0) {
684 module_ref = g_build_filename (base_dir, name, NULL);
685 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
686 if (image->modules [idx - 1]) {
687 mono_image_addref (image->modules [idx - 1]);
688 image->modules [idx - 1]->assembly = image->assembly;
690 if (image->modules [idx - 1]->is_module_handle)
691 mono_image_fixup_vtable (image->modules [idx - 1]);
693 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
699 image->modules_loaded [idx - 1] = TRUE;
702 g_list_free (valid_modules);
704 return image->modules [idx - 1];
708 class_key_extract (gpointer value)
710 MonoClass *klass = (MonoClass *)value;
712 return GUINT_TO_POINTER (klass->type_token);
716 class_next_value (gpointer value)
718 MonoClass *klass = (MonoClass *)value;
720 return (gpointer*)&klass->next_class_cache;
724 mono_image_init (MonoImage *image)
726 mono_os_mutex_init_recursive (&image->lock);
727 mono_os_mutex_init_recursive (&image->szarray_cache_lock);
729 image->mempool = mono_mempool_new_size (INITIAL_IMAGE_SIZE);
730 mono_internal_hash_table_init (&image->class_cache,
734 image->field_cache = mono_conc_hashtable_new (NULL, NULL);
736 image->typespec_cache = g_hash_table_new (NULL, NULL);
737 image->memberref_signatures = g_hash_table_new (NULL, NULL);
738 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
739 image->method_signatures = g_hash_table_new (NULL, NULL);
741 image->property_hash = mono_property_hash_new ();
744 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
745 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
746 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
747 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
748 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
757 * Returns < 0 to indicate an error.
760 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
762 MonoDotNetHeader64 header64;
765 if (!image->is_module_handle)
767 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
770 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
772 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
775 /* endian swap the fields common between PE and PE+ */
776 SWAP32 (header->coff.coff_time);
777 SWAP32 (header->coff.coff_symptr);
778 SWAP32 (header->coff.coff_symcount);
779 SWAP16 (header->coff.coff_machine);
780 SWAP16 (header->coff.coff_sections);
781 SWAP16 (header->coff.coff_opt_header_size);
782 SWAP16 (header->coff.coff_attributes);
784 SWAP32 (header->pe.pe_code_size);
785 SWAP32 (header->pe.pe_uninit_data_size);
786 SWAP32 (header->pe.pe_rva_entry_point);
787 SWAP32 (header->pe.pe_rva_code_base);
788 SWAP32 (header->pe.pe_rva_data_base);
789 SWAP16 (header->pe.pe_magic);
791 /* now we are ready for the basic tests */
793 if (header->pe.pe_magic == 0x10B) {
794 offset += sizeof (MonoDotNetHeader);
795 SWAP32 (header->pe.pe_data_size);
796 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
799 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
800 SWAP32 (header->nt.pe_stack_reserve);
801 SWAP32 (header->nt.pe_stack_commit);
802 SWAP32 (header->nt.pe_heap_reserve);
803 SWAP32 (header->nt.pe_heap_commit);
804 } else if (header->pe.pe_magic == 0x20B) {
805 /* PE32+ file format */
806 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
808 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
809 offset += sizeof (MonoDotNetHeader64);
810 /* copy the fields already swapped. the last field, pe_data_size, is missing */
811 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
812 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
813 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
815 SWAP64 (header64.nt.pe_image_base);
816 header->nt.pe_image_base = header64.nt.pe_image_base;
817 SWAP64 (header64.nt.pe_stack_reserve);
818 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
819 SWAP64 (header64.nt.pe_stack_commit);
820 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
821 SWAP64 (header64.nt.pe_heap_reserve);
822 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
823 SWAP64 (header64.nt.pe_heap_commit);
824 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
826 header->nt.pe_section_align = header64.nt.pe_section_align;
827 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
828 header->nt.pe_os_major = header64.nt.pe_os_major;
829 header->nt.pe_os_minor = header64.nt.pe_os_minor;
830 header->nt.pe_user_major = header64.nt.pe_user_major;
831 header->nt.pe_user_minor = header64.nt.pe_user_minor;
832 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
833 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
834 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
835 header->nt.pe_image_size = header64.nt.pe_image_size;
836 header->nt.pe_header_size = header64.nt.pe_header_size;
837 header->nt.pe_checksum = header64.nt.pe_checksum;
838 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
839 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
840 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
841 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
843 /* copy the datadir */
844 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
849 /* MonoPEHeaderNT: not used yet */
850 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
851 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
852 SWAP16 (header->nt.pe_os_major); /* must be 4 */
853 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
854 SWAP16 (header->nt.pe_user_major);
855 SWAP16 (header->nt.pe_user_minor);
856 SWAP16 (header->nt.pe_subsys_major);
857 SWAP16 (header->nt.pe_subsys_minor);
858 SWAP32 (header->nt.pe_reserved_1);
859 SWAP32 (header->nt.pe_image_size);
860 SWAP32 (header->nt.pe_header_size);
861 SWAP32 (header->nt.pe_checksum);
862 SWAP16 (header->nt.pe_subsys_required);
863 SWAP16 (header->nt.pe_dll_flags);
864 SWAP32 (header->nt.pe_loader_flags);
865 SWAP32 (header->nt.pe_data_dir_count);
867 /* MonoDotNetHeader: mostly unused */
868 SWAPPDE (header->datadir.pe_export_table);
869 SWAPPDE (header->datadir.pe_import_table);
870 SWAPPDE (header->datadir.pe_resource_table);
871 SWAPPDE (header->datadir.pe_exception_table);
872 SWAPPDE (header->datadir.pe_certificate_table);
873 SWAPPDE (header->datadir.pe_reloc_table);
874 SWAPPDE (header->datadir.pe_debug);
875 SWAPPDE (header->datadir.pe_copyright);
876 SWAPPDE (header->datadir.pe_global_ptr);
877 SWAPPDE (header->datadir.pe_tls_table);
878 SWAPPDE (header->datadir.pe_load_config_table);
879 SWAPPDE (header->datadir.pe_bound_import);
880 SWAPPDE (header->datadir.pe_iat);
881 SWAPPDE (header->datadir.pe_delay_import_desc);
882 SWAPPDE (header->datadir.pe_cli_header);
883 SWAPPDE (header->datadir.pe_reserved);
886 if (image->is_module_handle)
887 image->raw_data_len = header->nt.pe_image_size;
894 mono_image_load_pe_data (MonoImage *image)
896 return ((MonoImageLoader*)image->loader)->load_pe_data (image);
900 pe_image_load_pe_data (MonoImage *image)
902 MonoCLIImageInfo *iinfo;
903 MonoDotNetHeader *header;
904 MonoMSDOSHeader msdos;
907 iinfo = (MonoCLIImageInfo *)image->image_info;
908 header = &iinfo->cli_header;
911 if (!image->is_module_handle)
913 if (offset + sizeof (msdos) > image->raw_data_len)
915 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
917 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
920 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
922 offset = msdos.pe_offset;
924 offset = do_load_header (image, header, offset);
929 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
931 if (header->coff.coff_machine != 0x14c)
937 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
938 * which produces binaries with 7.0. From Sergey:
940 * The reason is that MSVC7 uses traditional compile/link
941 * sequence for CIL executables, and VS.NET (and Framework
942 * SDK) includes linker version 7, that puts 7.0 in this
943 * field. That's why it's currently not possible to load VC
944 * binaries with Mono. This field is pretty much meaningless
945 * anyway (what linker?).
947 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
952 * FIXME: byte swap all addresses here for header.
955 if (!load_section_tables (image, iinfo, offset))
965 mono_image_load_cli_data (MonoImage *image)
967 return ((MonoImageLoader*)image->loader)->load_cli_data (image);
971 pe_image_load_cli_data (MonoImage *image)
973 MonoCLIImageInfo *iinfo;
974 MonoDotNetHeader *header;
976 iinfo = (MonoCLIImageInfo *)image->image_info;
977 header = &iinfo->cli_header;
979 /* Load the CLI header */
980 if (!mono_image_load_cli_header (image, iinfo))
983 if (!mono_image_load_metadata (image, iinfo))
990 mono_image_load_names (MonoImage *image)
992 /* modules don't have an assembly table row */
993 if (image->tables [MONO_TABLE_ASSEMBLY].rows) {
994 image->assembly_name = mono_metadata_string_heap (image,
995 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
996 0, MONO_ASSEMBLY_NAME));
999 /* Portable pdb images don't have a MODULE row */
1000 if (image->tables [MONO_TABLE_MODULE].rows) {
1001 image->module_name = mono_metadata_string_heap (image,
1002 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
1003 0, MONO_MODULE_NAME));
1008 pe_image_load_tables (MonoImage *image)
1014 pe_image_match (MonoImage *image)
1016 if (image->raw_data [0] == 'M' && image->raw_data [1] == 'Z')
1021 static const MonoImageLoader pe_loader = {
1023 pe_image_load_pe_data,
1024 pe_image_load_cli_data,
1025 pe_image_load_tables,
1029 install_pe_loader (void)
1031 mono_install_image_loader (&pe_loader);
1035 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
1036 gboolean care_about_cli, gboolean care_about_pecoff)
1038 MonoCLIImageInfo *iinfo;
1039 MonoDotNetHeader *header;
1040 GSList *errors = NULL;
1043 mono_profiler_module_event (image, MONO_PROFILE_START_LOAD);
1045 mono_image_init (image);
1047 iinfo = (MonoCLIImageInfo *)image->image_info;
1048 header = &iinfo->cli_header;
1050 if (!image->metadata_only) {
1051 for (l = image_loaders; l; l = l->next) {
1052 MonoImageLoader *loader = (MonoImageLoader *)l->data;
1053 if (loader->match (image)) {
1054 image->loader = loader;
1058 if (!image->loader) {
1060 *status = MONO_IMAGE_IMAGE_INVALID;
1065 *status = MONO_IMAGE_IMAGE_INVALID;
1067 if (care_about_pecoff == FALSE)
1070 if (image->loader == &pe_loader && !mono_verifier_verify_pe_data (image, &errors))
1073 if (!mono_image_load_pe_data (image))
1076 image->loader = (MonoImageLoader*)&pe_loader;
1079 if (care_about_cli == FALSE) {
1083 if (image->loader == &pe_loader && !image->metadata_only && !mono_verifier_verify_cli_data (image, &errors))
1086 if (!mono_image_load_cli_data (image))
1089 if (image->loader == &pe_loader && !image->metadata_only && !mono_verifier_verify_table_data (image, &errors))
1092 mono_image_load_names (image);
1094 load_modules (image);
1097 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
1099 *status = MONO_IMAGE_OK;
1105 MonoVerifyInfo *info = (MonoVerifyInfo *)errors->data;
1106 g_warning ("Could not load image %s due to %s", image->name, info->message);
1107 mono_free_verify_list (errors);
1109 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
1110 mono_image_close (image);
1115 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
1116 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly, gboolean metadata_only)
1118 MonoCLIImageInfo *iinfo;
1122 if ((filed = mono_file_map_open (fname)) == NULL){
1123 if (IS_PORTABILITY_SET) {
1124 gchar *ffname = mono_portability_find_file (fname, TRUE);
1126 filed = mono_file_map_open (ffname);
1131 if (filed == NULL) {
1133 *status = MONO_IMAGE_ERROR_ERRNO;
1138 image = g_new0 (MonoImage, 1);
1139 image->raw_buffer_used = TRUE;
1140 image->raw_data_len = mono_file_map_size (filed);
1141 image->raw_data = (char *)mono_file_map (image->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &image->raw_data_handle);
1142 #if defined(HAVE_MMAP) && !defined (HOST_WIN32)
1143 if (!image->raw_data) {
1144 image->fileio_used = TRUE;
1145 image->raw_data = (char *)mono_file_map_fileio (image->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &image->raw_data_handle);
1148 if (!image->raw_data) {
1149 mono_file_map_close (filed);
1152 *status = MONO_IMAGE_IMAGE_INVALID;
1155 iinfo = g_new0 (MonoCLIImageInfo, 1);
1156 image->image_info = iinfo;
1157 image->name = mono_path_resolve_symlinks (fname);
1158 image->ref_only = refonly;
1159 image->metadata_only = metadata_only;
1160 image->ref_count = 1;
1161 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
1162 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
1164 mono_file_map_close (filed);
1165 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
1169 * mono_image_loaded:
1170 * @name: path or assembly name of the image to load
1171 * @refonly: Check with respect to reflection-only loads?
1173 * This routine verifies that the given image is loaded.
1174 * It checks either reflection-only loads only, or normal loads only, as specified by parameter.
1176 * Returns: the loaded MonoImage, or NULL on failure.
1179 mono_image_loaded_full (const char *name, gboolean refonly)
1183 mono_images_lock ();
1184 res = (MonoImage *)g_hash_table_lookup (get_loaded_images_hash (refonly), name);
1186 res = (MonoImage *)g_hash_table_lookup (get_loaded_images_by_name_hash (refonly), name);
1187 mono_images_unlock ();
1193 * mono_image_loaded:
1194 * @name: path or assembly name of the image to load
1196 * This routine verifies that the given image is loaded. Reflection-only loads do not count.
1198 * Returns: the loaded MonoImage, or NULL on failure.
1201 mono_image_loaded (const char *name)
1203 return mono_image_loaded_full (name, FALSE);
1212 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1214 GuidData *data = (GuidData *)user_data;
1219 image = (MonoImage *)val;
1220 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1225 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1228 GHashTable *loaded_images = get_loaded_images_hash (refonly);
1232 mono_images_lock ();
1233 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1234 mono_images_unlock ();
1239 mono_image_loaded_by_guid (const char *guid)
1241 return mono_image_loaded_by_guid_full (guid, FALSE);
1245 register_image (MonoImage *image)
1248 GHashTable *loaded_images = get_loaded_images_hash (image->ref_only);
1250 mono_images_lock ();
1251 image2 = (MonoImage *)g_hash_table_lookup (loaded_images, image->name);
1254 /* Somebody else beat us to it */
1255 mono_image_addref (image2);
1256 mono_images_unlock ();
1257 mono_image_close (image);
1261 GHashTable *loaded_images_by_name = get_loaded_images_by_name_hash (image->ref_only);
1262 g_hash_table_insert (loaded_images, image->name, image);
1263 if (image->assembly_name && (g_hash_table_lookup (loaded_images_by_name, image->assembly_name) == NULL))
1264 g_hash_table_insert (loaded_images_by_name, (char *) image->assembly_name, image);
1265 mono_images_unlock ();
1271 mono_image_open_from_data_internal (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, gboolean metadata_only, const char *name)
1273 MonoCLIImageInfo *iinfo;
1277 if (!data || !data_len) {
1279 *status = MONO_IMAGE_IMAGE_INVALID;
1284 datac = (char *)g_try_malloc (data_len);
1287 *status = MONO_IMAGE_ERROR_ERRNO;
1290 memcpy (datac, data, data_len);
1293 image = g_new0 (MonoImage, 1);
1294 image->raw_data = datac;
1295 image->raw_data_len = data_len;
1296 image->raw_data_allocated = need_copy;
1297 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1298 iinfo = g_new0 (MonoCLIImageInfo, 1);
1299 image->image_info = iinfo;
1300 image->ref_only = refonly;
1301 image->metadata_only = metadata_only;
1303 image = do_mono_image_load (image, status, TRUE, TRUE);
1307 return register_image (image);
1311 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1313 return mono_image_open_from_data_internal (data, data_len, need_copy, status, refonly, FALSE, name);
1317 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1319 return mono_image_open_from_data_with_name (data, data_len, need_copy, status, refonly, NULL);
1323 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1325 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1329 /* fname is not duplicated. */
1331 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1334 MonoCLIImageInfo* iinfo;
1336 image = g_new0 (MonoImage, 1);
1337 image->raw_data = (char*) module_handle;
1338 image->is_module_handle = TRUE;
1339 iinfo = g_new0 (MonoCLIImageInfo, 1);
1340 image->image_info = iinfo;
1341 image->name = fname;
1342 image->ref_count = has_entry_point ? 0 : 1;
1343 image->has_entry_point = has_entry_point;
1345 image = do_mono_image_load (image, status, TRUE, TRUE);
1349 return register_image (image);
1354 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1357 GHashTable *loaded_images = get_loaded_images_hash (refonly);
1360 g_return_val_if_fail (fname != NULL, NULL);
1363 // Win32 path: If we are running with mixed-mode assemblies enabled (ie have loaded mscoree.dll),
1364 // then assemblies need to be loaded with LoadLibrary:
1365 if (!refonly && coree_module_handle) {
1366 HMODULE module_handle;
1367 guint16 *fname_utf16;
1370 absfname = mono_path_resolve_symlinks (fname);
1373 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1374 mono_images_lock ();
1375 image = g_hash_table_lookup (loaded_images, absfname);
1376 if (image) { // Image already loaded
1377 g_assert (image->is_module_handle);
1378 if (image->has_entry_point && image->ref_count == 0) {
1379 /* Increment reference count on images loaded outside of the runtime. */
1380 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1381 /* The image is already loaded because _CorDllMain removes images from the hash. */
1382 module_handle = LoadLibrary (fname_utf16);
1383 g_assert (module_handle == (HMODULE) image->raw_data);
1385 mono_image_addref (image);
1386 mono_images_unlock ();
1388 g_free (fname_utf16);
1393 // Image not loaded, load it now
1394 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1395 module_handle = MonoLoadImage (fname_utf16);
1396 if (status && module_handle == NULL)
1397 last_error = GetLastError ();
1399 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1400 image = g_hash_table_lookup (loaded_images, absfname);
1402 mono_image_addref (image);
1403 mono_images_unlock ();
1405 g_free (fname_utf16);
1407 if (module_handle == NULL) {
1411 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT)
1412 *status = MONO_IMAGE_IMAGE_INVALID;
1414 if (last_error == ERROR_FILE_NOT_FOUND || last_error == ERROR_PATH_NOT_FOUND)
1424 g_assert (image->is_module_handle);
1425 g_assert (image->has_entry_point);
1430 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
1434 absfname = mono_path_canonicalize (fname);
1437 * The easiest solution would be to do all the loading inside the mutex,
1438 * but that would lead to scalability problems. So we let the loading
1439 * happen outside the mutex, and if multiple threads happen to load
1440 * the same image, we discard all but the first copy.
1442 mono_images_lock ();
1443 image = (MonoImage *)g_hash_table_lookup (loaded_images, absfname);
1446 if (image) { // Image already loaded
1447 mono_image_addref (image);
1448 mono_images_unlock ();
1451 mono_images_unlock ();
1453 // Image not loaded, load it now
1454 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly, FALSE);
1458 return register_image (image);
1463 * @fname: filename that points to the module we want to open
1464 * @status: An error condition is returned in this field
1466 * Returns: An open image of type %MonoImage or NULL on error.
1467 * The caller holds a temporary reference to the returned image which should be cleared
1468 * when no longer needed by calling mono_image_close ().
1469 * if NULL, then check the value of @status for details on the error
1472 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1474 return mono_image_open_full (fname, status, FALSE);
1478 * mono_pe_file_open:
1479 * @fname: filename that points to the module we want to open
1480 * @status: An error condition is returned in this field
1482 * Returns: An open image of type %MonoImage or NULL on error. if
1483 * NULL, then check the value of @status for details on the error.
1484 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1485 * It's just a PE file loader, used for FileVersionInfo. It also does
1486 * not use the image cache.
1489 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1491 g_return_val_if_fail (fname != NULL, NULL);
1493 return do_mono_image_open (fname, status, FALSE, TRUE, FALSE, FALSE);
1497 * mono_image_open_raw
1498 * @fname: filename that points to the module we want to open
1499 * @status: An error condition is returned in this field
1501 * Returns an image without loading neither pe or cli data.
1503 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
1506 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
1508 g_return_val_if_fail (fname != NULL, NULL);
1510 return do_mono_image_open (fname, status, FALSE, FALSE, FALSE, FALSE);
1514 * mono_image_open_metadata_only:
1516 * Open an image which contains metadata only without a PE header.
1519 mono_image_open_metadata_only (const char *fname, MonoImageOpenStatus *status)
1521 return do_mono_image_open (fname, status, TRUE, TRUE, FALSE, TRUE);
1525 mono_image_fixup_vtable (MonoImage *image)
1528 MonoCLIImageInfo *iinfo;
1530 MonoVTableFixup *vtfixup;
1536 g_assert (image->is_module_handle);
1538 iinfo = image->image_info;
1539 de = &iinfo->cli_cli_header.ch_vtable_fixups;
1540 if (!de->rva || !de->size)
1542 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
1546 count = de->size / sizeof (MonoVTableFixup);
1548 if (!vtfixup->rva || !vtfixup->count)
1551 slot = mono_image_rva_map (image, vtfixup->rva);
1553 slot_type = vtfixup->type;
1554 slot_count = vtfixup->count;
1555 if (slot_type & VTFIXUP_TYPE_32BIT)
1556 while (slot_count--) {
1557 *((guint32*) slot) = (guint32) mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
1558 slot = ((guint32*) slot) + 1;
1560 else if (slot_type & VTFIXUP_TYPE_64BIT)
1561 while (slot_count--) {
1562 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
1563 slot = ((guint32*) slot) + 1;
1566 g_assert_not_reached();
1571 g_assert_not_reached();
1576 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1578 g_hash_table_destroy ((GHashTable*)val);
1583 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1585 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1590 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1592 g_slist_free ((GSList*)val);
1596 * mono_image_addref:
1597 * @image: The image file we wish to add a reference to
1599 * Increases the reference count of an image.
1602 mono_image_addref (MonoImage *image)
1604 InterlockedIncrement (&image->ref_count);
1608 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1610 stream->alloc_size = stream->index = stream->offset = 0;
1611 g_free (stream->data);
1612 stream->data = NULL;
1614 g_hash_table_destroy (stream->hash);
1615 stream->hash = NULL;
1620 free_hash (GHashTable *hash)
1623 g_hash_table_destroy (hash);
1627 mono_wrapper_caches_free (MonoWrapperCaches *cache)
1629 free_hash (cache->delegate_invoke_cache);
1630 free_hash (cache->delegate_begin_invoke_cache);
1631 free_hash (cache->delegate_end_invoke_cache);
1632 free_hash (cache->runtime_invoke_cache);
1633 free_hash (cache->runtime_invoke_vtype_cache);
1635 free_hash (cache->delegate_abstract_invoke_cache);
1637 free_hash (cache->runtime_invoke_direct_cache);
1638 free_hash (cache->managed_wrapper_cache);
1640 free_hash (cache->native_wrapper_cache);
1641 free_hash (cache->native_wrapper_aot_cache);
1642 free_hash (cache->native_wrapper_check_cache);
1643 free_hash (cache->native_wrapper_aot_check_cache);
1645 free_hash (cache->native_func_wrapper_aot_cache);
1646 free_hash (cache->remoting_invoke_cache);
1647 free_hash (cache->synchronized_cache);
1648 free_hash (cache->unbox_wrapper_cache);
1649 free_hash (cache->cominterop_invoke_cache);
1650 free_hash (cache->cominterop_wrapper_cache);
1651 free_hash (cache->thunk_invoke_cache);
1655 * Returns whether mono_image_close_finish() must be called as well.
1656 * We must unload images in two steps because clearing the domain in
1657 * SGen requires the class metadata to be intact, but we need to free
1658 * the mono_g_hash_tables in case a collection occurs during domain
1659 * unloading and the roots would trip up the GC.
1662 mono_image_close_except_pools (MonoImage *image)
1665 GHashTable *loaded_images, *loaded_images_by_name;
1668 g_return_val_if_fail (image != NULL, FALSE);
1671 * Atomically decrement the refcount and remove ourselves from the hash tables, so
1672 * register_image () can't grab an image which is being closed.
1674 mono_images_lock ();
1676 if (InterlockedDecrement (&image->ref_count) > 0) {
1677 mono_images_unlock ();
1681 loaded_images = get_loaded_images_hash (image->ref_only);
1682 loaded_images_by_name = get_loaded_images_by_name_hash (image->ref_only);
1683 image2 = (MonoImage *)g_hash_table_lookup (loaded_images, image->name);
1684 if (image == image2) {
1685 /* This is not true if we are called from mono_image_open () */
1686 g_hash_table_remove (loaded_images, image->name);
1688 if (image->assembly_name && (g_hash_table_lookup (loaded_images_by_name, image->assembly_name) == image))
1689 g_hash_table_remove (loaded_images_by_name, (char *) image->assembly_name);
1691 mono_images_unlock ();
1694 if (image->is_module_handle && image->has_entry_point) {
1695 mono_images_lock ();
1696 if (image->ref_count == 0) {
1697 /* Image will be closed by _CorDllMain. */
1698 FreeLibrary ((HMODULE) image->raw_data);
1699 mono_images_unlock ();
1702 mono_images_unlock ();
1706 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1708 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1710 mono_image_invoke_unload_hook (image);
1712 mono_metadata_clean_for_image (image);
1715 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1716 * assemblies, so we can't release these references in mono_assembly_close () since the
1717 * MonoImage might outlive its associated MonoAssembly.
1719 if (image->references && !image_is_dynamic (image)) {
1720 for (i = 0; i < image->nreferences; i++) {
1721 if (image->references [i] && image->references [i] != REFERENCE_MISSING) {
1722 if (!mono_assembly_close_except_image_pools (image->references [i]))
1723 image->references [i] = NULL;
1727 if (image->references) {
1728 g_free (image->references);
1729 image->references = NULL;
1734 mono_images_lock ();
1735 if (image->is_module_handle && !image->has_entry_point)
1736 FreeLibrary ((HMODULE) image->raw_data);
1737 mono_images_unlock ();
1740 if (image->raw_buffer_used) {
1741 if (image->raw_data != NULL) {
1743 if (image->fileio_used)
1744 mono_file_unmap_fileio (image->raw_data, image->raw_data_handle);
1747 mono_file_unmap (image->raw_data, image->raw_data_handle);
1751 if (image->raw_data_allocated) {
1752 /* FIXME: do we need this? (image is disposed anyway) */
1753 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1754 MonoCLIImageInfo *ii = (MonoCLIImageInfo *)image->image_info;
1756 if ((image->raw_metadata > image->raw_data) &&
1757 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1758 image->raw_metadata = NULL;
1760 for (i = 0; i < ii->cli_section_count; i++)
1761 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1762 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1763 ii->cli_sections [i] = NULL;
1765 g_free (image->raw_data);
1768 if (debug_assembly_unload) {
1769 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1771 g_free (image->name);
1772 g_free (image->guid);
1773 g_free (image->version);
1774 g_free (image->files);
1777 if (image->method_cache)
1778 g_hash_table_destroy (image->method_cache);
1779 if (image->methodref_cache)
1780 g_hash_table_destroy (image->methodref_cache);
1781 mono_internal_hash_table_destroy (&image->class_cache);
1782 mono_conc_hashtable_destroy (image->field_cache);
1783 if (image->array_cache) {
1784 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1785 g_hash_table_destroy (image->array_cache);
1787 if (image->szarray_cache)
1788 g_hash_table_destroy (image->szarray_cache);
1789 if (image->ptr_cache)
1790 g_hash_table_destroy (image->ptr_cache);
1791 if (image->name_cache) {
1792 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1793 g_hash_table_destroy (image->name_cache);
1796 free_hash (image->delegate_bound_static_invoke_cache);
1797 free_hash (image->runtime_invoke_vcall_cache);
1798 free_hash (image->ldfld_wrapper_cache);
1799 free_hash (image->ldflda_wrapper_cache);
1800 free_hash (image->stfld_wrapper_cache);
1801 free_hash (image->isinst_cache);
1802 free_hash (image->castclass_cache);
1803 free_hash (image->proxy_isinst_cache);
1804 free_hash (image->var_cache_slow);
1805 free_hash (image->mvar_cache_slow);
1806 free_hash (image->var_cache_constrained);
1807 free_hash (image->mvar_cache_constrained);
1808 free_hash (image->wrapper_param_names);
1809 free_hash (image->pinvoke_scopes);
1810 free_hash (image->pinvoke_scope_filenames);
1811 free_hash (image->native_func_wrapper_cache);
1812 free_hash (image->typespec_cache);
1814 mono_wrapper_caches_free (&image->wrapper_caches);
1816 for (i = 0; i < image->gshared_types_len; ++i)
1817 free_hash (image->gshared_types [i]);
1818 g_free (image->gshared_types);
1820 /* The ownership of signatures is not well defined */
1821 g_hash_table_destroy (image->memberref_signatures);
1822 g_hash_table_destroy (image->helper_signatures);
1823 g_hash_table_destroy (image->method_signatures);
1825 if (image->rgctx_template_hash)
1826 g_hash_table_destroy (image->rgctx_template_hash);
1828 if (image->property_hash)
1829 mono_property_hash_destroy (image->property_hash);
1832 reflection_info_unregister_classes is only required by dynamic images, which will not be properly
1833 cleared during shutdown as we don't perform regular appdomain unload for the root one.
1835 g_assert (!image->reflection_info_unregister_classes || mono_runtime_is_shutting_down ());
1836 image->reflection_info_unregister_classes = NULL;
1838 if (image->interface_bitset) {
1839 mono_unload_interface_ids (image->interface_bitset);
1840 mono_bitset_free (image->interface_bitset);
1842 if (image->image_info){
1843 MonoCLIImageInfo *ii = (MonoCLIImageInfo *)image->image_info;
1845 if (ii->cli_section_tables)
1846 g_free (ii->cli_section_tables);
1847 if (ii->cli_sections)
1848 g_free (ii->cli_sections);
1849 g_free (image->image_info);
1852 for (i = 0; i < image->module_count; ++i) {
1853 if (image->modules [i]) {
1854 if (!mono_image_close_except_pools (image->modules [i]))
1855 image->modules [i] = NULL;
1858 if (image->modules_loaded)
1859 g_free (image->modules_loaded);
1861 mono_os_mutex_destroy (&image->szarray_cache_lock);
1862 mono_os_mutex_destroy (&image->lock);
1864 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1865 if (image_is_dynamic (image)) {
1866 /* Dynamic images are GC_MALLOCed */
1867 g_free ((char*)image->module_name);
1868 mono_dynamic_image_free ((MonoDynamicImage*)image);
1871 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1877 mono_image_close_finish (MonoImage *image)
1881 if (image->references && !image_is_dynamic (image)) {
1882 for (i = 0; i < image->nreferences; i++) {
1883 if (image->references [i] && image->references [i] != REFERENCE_MISSING)
1884 mono_assembly_close_finish (image->references [i]);
1887 g_free (image->references);
1888 image->references = NULL;
1891 for (i = 0; i < image->module_count; ++i) {
1892 if (image->modules [i])
1893 mono_image_close_finish (image->modules [i]);
1896 g_free (image->modules);
1898 #ifndef DISABLE_PERFCOUNTERS
1899 mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
1902 if (!image_is_dynamic (image)) {
1903 if (debug_assembly_unload)
1904 mono_mempool_invalidate (image->mempool);
1906 mono_mempool_destroy (image->mempool);
1910 if (debug_assembly_unload)
1911 mono_mempool_invalidate (image->mempool);
1913 mono_mempool_destroy (image->mempool);
1914 mono_dynamic_image_free_image ((MonoDynamicImage*)image);
1921 * @image: The image file we wish to close
1923 * Closes an image file, deallocates all memory consumed and
1924 * unmaps all possible sections of the file
1927 mono_image_close (MonoImage *image)
1929 if (mono_image_close_except_pools (image))
1930 mono_image_close_finish (image);
1934 * mono_image_strerror:
1935 * @status: an code indicating the result from a recent operation
1937 * Returns: a string describing the error
1940 mono_image_strerror (MonoImageOpenStatus status)
1945 case MONO_IMAGE_ERROR_ERRNO:
1946 return strerror (errno);
1947 case MONO_IMAGE_IMAGE_INVALID:
1948 return "File does not contain a valid CIL image";
1949 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1950 return "An assembly was referenced, but could not be found";
1952 return "Internal error";
1956 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1957 guint32 lang_id, gunichar2 *name,
1958 MonoPEResourceDirEntry *entry,
1959 MonoPEResourceDir *root, guint32 level)
1961 gboolean is_string, is_dir;
1962 guint32 name_offset, dir_offset;
1964 /* Level 0 holds a directory entry for each type of resource
1965 * (identified by ID or name).
1967 * Level 1 holds a directory entry for each named resource
1968 * item, and each "anonymous" item of a particular type of
1971 * Level 2 holds a directory entry for each language pointing to
1974 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
1975 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
1977 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
1978 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
1983 } else if (level==1) {
1984 if (res_id != name_offset)
1988 is_string==TRUE && name!=lookup (name_offset)) {
1992 } else if (level==2) {
1993 if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
1996 g_assert_not_reached ();
2000 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
2001 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
2004 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
2006 for(i=0; i<entries; i++) {
2007 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
2010 ret=mono_image_walk_resource_tree (info, res_id,
2021 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
2022 MonoPEResourceDataEntry *res;
2024 res = g_new0 (MonoPEResourceDataEntry, 1);
2026 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
2027 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
2028 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
2029 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
2036 * mono_image_lookup_resource:
2037 * @image: the image to look up the resource in
2038 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
2039 * @lang_id: The language id.
2040 * @name: the resource name to lookup.
2042 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
2043 * of the given resource. The caller should free it using g_free () when no longer
2047 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
2049 MonoCLIImageInfo *info;
2050 MonoDotNetHeader *header;
2051 MonoPEDatadir *datadir;
2052 MonoPEDirEntry *rsrc;
2053 MonoPEResourceDir *resource_dir;
2054 MonoPEResourceDirEntry *res_entries;
2061 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
2063 info = (MonoCLIImageInfo *)image->image_info;
2068 header=&info->cli_header;
2073 datadir=&header->datadir;
2078 rsrc=&datadir->pe_resource_table;
2083 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
2084 if(resource_dir==NULL) {
2088 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
2089 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
2091 for(i=0; i<entries; i++) {
2092 MonoPEResourceDirEntry *entry=&res_entries[i];
2095 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
2096 name, entry, resource_dir,
2107 * mono_image_get_entry_point:
2108 * @image: the image where the entry point will be looked up.
2110 * Use this routine to determine the metadata token for method that
2111 * has been flagged as the entry point.
2113 * Returns: the token for the entry point method in the image
2116 mono_image_get_entry_point (MonoImage *image)
2118 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
2122 * mono_image_get_resource:
2123 * @image: the image where the resource will be looked up.
2124 * @offset: The offset to add to the resource
2125 * @size: a pointer to an int where the size of the resource will be stored
2127 * This is a low-level routine that fetches a resource from the
2128 * metadata that starts at a given @offset. The @size parameter is
2129 * filled with the data field as encoded in the metadata.
2131 * Returns: the pointer to the resource whose offset is @offset.
2134 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
2136 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2137 MonoCLIHeader *ch = &iinfo->cli_cli_header;
2140 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
2143 data = mono_image_rva_map (image, ch->ch_resources.rva);
2148 *size = read32 (data);
2154 mono_image_load_file_for_image (MonoImage *image, int fileidx)
2156 char *base_dir, *name;
2158 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
2162 if (fileidx < 1 || fileidx > t->rows)
2165 mono_image_lock (image);
2166 if (image->files && image->files [fileidx - 1]) {
2167 mono_image_unlock (image);
2168 return image->files [fileidx - 1];
2170 mono_image_unlock (image);
2172 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
2173 fname = mono_metadata_string_heap (image, fname_id);
2174 base_dir = g_path_get_dirname (image->name);
2175 name = g_build_filename (base_dir, fname, NULL);
2176 res = mono_image_open (name, NULL);
2180 mono_image_lock (image);
2181 if (image->files && image->files [fileidx - 1]) {
2182 MonoImage *old = res;
2183 res = image->files [fileidx - 1];
2184 mono_image_unlock (image);
2185 mono_image_close (old);
2188 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
2189 res->assembly = image->assembly;
2190 for (i = 0; i < res->module_count; ++i) {
2191 if (res->modules [i] && !res->modules [i]->assembly)
2192 res->modules [i]->assembly = image->assembly;
2196 image->files = g_new0 (MonoImage*, t->rows);
2197 image->files [fileidx - 1] = res;
2198 mono_image_unlock (image);
2199 /* vtable fixup can't happen with the image lock held */
2201 if (res->is_module_handle)
2202 mono_image_fixup_vtable (res);
2213 * mono_image_get_strong_name:
2214 * @image: a MonoImage
2215 * @size: a guint32 pointer, or NULL.
2217 * If the image has a strong name, and @size is not NULL, the value
2218 * pointed to by size will have the size of the strong name.
2220 * Returns: NULL if the image does not have a strong name, or a
2221 * pointer to the public key.
2224 mono_image_get_strong_name (MonoImage *image, guint32 *size)
2226 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2227 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2230 if (!de->size || !de->rva)
2232 data = mono_image_rva_map (image, de->rva);
2241 * mono_image_strong_name_position:
2242 * @image: a MonoImage
2243 * @size: a guint32 pointer, or NULL.
2245 * If the image has a strong name, and @size is not NULL, the value
2246 * pointed to by size will have the size of the strong name.
2248 * Returns: the position within the image file where the strong name
2252 mono_image_strong_name_position (MonoImage *image, guint32 *size)
2254 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2255 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2260 if (!de->size || !de->rva)
2262 pos = mono_cli_rva_image_map (image, de->rva);
2263 return pos == INVALID_ADDRESS ? 0 : pos;
2267 * mono_image_get_public_key:
2268 * @image: a MonoImage
2269 * @size: a guint32 pointer, or NULL.
2271 * This is used to obtain the public key in the @image.
2273 * If the image has a public key, and @size is not NULL, the value
2274 * pointed to by size will have the size of the public key.
2276 * Returns: NULL if the image does not have a public key, or a pointer
2277 * to the public key.
2280 mono_image_get_public_key (MonoImage *image, guint32 *size)
2285 if (image_is_dynamic (image)) {
2287 *size = ((MonoDynamicImage*)image)->public_key_len;
2288 return (char*)((MonoDynamicImage*)image)->public_key;
2290 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2292 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2295 pubkey = mono_metadata_blob_heap (image, tok);
2296 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2303 * mono_image_get_name:
2304 * @name: a MonoImage
2306 * Returns: the name of the assembly.
2309 mono_image_get_name (MonoImage *image)
2311 return image->assembly_name;
2315 * mono_image_get_filename:
2316 * @image: a MonoImage
2318 * Used to get the filename that hold the actual MonoImage
2320 * Returns: the filename.
2323 mono_image_get_filename (MonoImage *image)
2329 mono_image_get_guid (MonoImage *image)
2334 const MonoTableInfo*
2335 mono_image_get_table_info (MonoImage *image, int table_id)
2337 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2339 return &image->tables [table_id];
2343 mono_image_get_table_rows (MonoImage *image, int table_id)
2345 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2347 return image->tables [table_id].rows;
2351 mono_table_info_get_rows (const MonoTableInfo *table)
2357 * mono_image_get_assembly:
2358 * @image: the MonoImage.
2360 * Use this routine to get the assembly that owns this image.
2362 * Returns: the assembly that holds this image.
2365 mono_image_get_assembly (MonoImage *image)
2367 return image->assembly;
2371 * mono_image_is_dynamic:
2372 * @image: the MonoImage
2374 * Determines if the given image was created dynamically through the
2375 * System.Reflection.Emit API
2377 * Returns: TRUE if the image was created dynamically, FALSE if not.
2380 mono_image_is_dynamic (MonoImage *image)
2382 return image_is_dynamic (image);
2386 * mono_image_has_authenticode_entry:
2387 * @image: the MonoImage
2389 * Use this routine to determine if the image has a Authenticode
2390 * Certificate Table.
2392 * Returns: TRUE if the image contains an authenticode entry in the PE
2396 mono_image_has_authenticode_entry (MonoImage *image)
2398 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2399 MonoDotNetHeader *header = &iinfo->cli_header;
2400 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
2401 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
2402 return ((de->rva != 0) && (de->size > 8));
2406 mono_image_alloc (MonoImage *image, guint size)
2410 #ifndef DISABLE_PERFCOUNTERS
2411 mono_perfcounters->loader_bytes += size;
2413 mono_image_lock (image);
2414 res = mono_mempool_alloc (image->mempool, size);
2415 mono_image_unlock (image);
2421 mono_image_alloc0 (MonoImage *image, guint size)
2425 #ifndef DISABLE_PERFCOUNTERS
2426 mono_perfcounters->loader_bytes += size;
2428 mono_image_lock (image);
2429 res = mono_mempool_alloc0 (image->mempool, size);
2430 mono_image_unlock (image);
2436 mono_image_strdup (MonoImage *image, const char *s)
2440 #ifndef DISABLE_PERFCOUNTERS
2441 mono_perfcounters->loader_bytes += strlen (s);
2443 mono_image_lock (image);
2444 res = mono_mempool_strdup (image->mempool, s);
2445 mono_image_unlock (image);
2451 g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
2455 new_list = (GList *)mono_image_alloc (image, sizeof (GList));
2456 new_list->data = data;
2457 new_list->prev = list ? list->prev : NULL;
2458 new_list->next = list;
2461 new_list->prev->next = new_list;
2463 list->prev = new_list;
2469 g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
2473 new_list = (GSList *)mono_image_alloc (image, sizeof (GSList));
2474 new_list->data = data;
2475 new_list->next = NULL;
2477 return g_slist_concat (list, new_list);
2481 mono_image_lock (MonoImage *image)
2483 mono_locks_os_acquire (&image->lock, ImageDataLock);
2487 mono_image_unlock (MonoImage *image)
2489 mono_locks_os_release (&image->lock, ImageDataLock);
2494 * mono_image_property_lookup:
2496 * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
2498 * LOCKING: Takes the image lock
2501 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
2505 mono_image_lock (image);
2506 res = mono_property_hash_lookup (image->property_hash, subject, property);
2507 mono_image_unlock (image);
2513 * mono_image_property_insert:
2515 * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2517 * LOCKING: Takes the image lock
2520 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
2522 mono_image_lock (image);
2523 mono_property_hash_insert (image->property_hash, subject, property, value);
2524 mono_image_unlock (image);
2528 * mono_image_property_remove:
2530 * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2532 * LOCKING: Takes the image lock
2535 mono_image_property_remove (MonoImage *image, gpointer subject)
2537 mono_image_lock (image);
2538 mono_property_hash_remove_object (image->property_hash, subject);
2539 mono_image_unlock (image);
2543 mono_image_append_class_to_reflection_info_set (MonoClass *klass)
2545 MonoImage *image = klass->image;
2546 g_assert (image_is_dynamic (image));
2547 mono_image_lock (image);
2548 image->reflection_info_unregister_classes = g_slist_prepend_mempool (image->mempool, image->reflection_info_unregister_classes, klass);
2549 mono_image_unlock (image);
2552 // This is support for the mempool reference tracking feature in checked-build, but lives in image.c due to use of static variables of this file.
2555 * mono_find_image_owner:
2557 * Find the image, if any, which a given pointer is located in the memory of.
2560 mono_find_image_owner (void *ptr)
2562 mono_images_lock ();
2564 MonoImage *owner = NULL;
2566 // Iterate over both by-path image hashes
2567 const int hash_candidates[] = {IMAGES_HASH_PATH, IMAGES_HASH_PATH_REFONLY};
2569 for (hash_idx = 0; !owner && hash_idx < G_N_ELEMENTS (hash_candidates); hash_idx++)
2571 GHashTable *target = loaded_images_hashes [hash_candidates [hash_idx]];
2572 GHashTableIter iter;
2575 // Iterate over images within a hash
2576 g_hash_table_iter_init (&iter, target);
2577 while (!owner && g_hash_table_iter_next(&iter, NULL, (gpointer *)&image))
2579 mono_image_lock (image);
2580 if (mono_mempool_contains_addr (image->mempool, ptr))
2582 mono_image_unlock (image);
2586 mono_images_unlock ();