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);
512 g_assert (image->heap_guid.size >= 16);
514 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
520 * Load representation of logical metadata tables, from the "#~" stream
523 load_tables (MonoImage *image)
525 const char *heap_tables = image->heap_tables.data;
528 int valid = 0, table;
531 heap_sizes = heap_tables [6];
532 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
533 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
534 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
536 valid_mask = read64 (heap_tables + 8);
537 rows = (const guint32 *) (heap_tables + 24);
539 for (table = 0; table < 64; table++){
540 if ((valid_mask & ((guint64) 1 << table)) == 0){
541 if (table > MONO_TABLE_LAST)
543 image->tables [table].rows = 0;
546 if (table > MONO_TABLE_LAST) {
547 g_warning("bits in valid must be zero above 0x37 (II - 23.1.6)");
549 image->tables [table].rows = read32 (rows);
555 image->tables_base = (heap_tables + 24) + (4 * valid);
557 /* They must be the same */
558 g_assert ((const void *) image->tables_base == (const void *) rows);
560 mono_metadata_compute_table_bases (image);
565 mono_image_load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
567 if (!load_metadata_ptrs (image, iinfo))
570 return load_tables (image);
574 mono_image_check_for_module_cctor (MonoImage *image)
576 MonoTableInfo *t, *mt;
577 t = &image->tables [MONO_TABLE_TYPEDEF];
578 mt = &image->tables [MONO_TABLE_METHOD];
579 if (image_is_dynamic (image)) {
581 image->checked_module_cctor = TRUE;
585 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
586 const char *name = mono_metadata_string_heap (image, nameidx);
587 if (strcmp (name, "<Module>") == 0) {
588 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
591 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
593 last_method = mt->rows;
594 for (; first_method < last_method; first_method++) {
595 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
596 name = mono_metadata_string_heap (image, nameidx);
597 if (strcmp (name, ".cctor") == 0) {
598 image->has_module_cctor = TRUE;
599 image->checked_module_cctor = TRUE;
605 image->has_module_cctor = FALSE;
606 image->checked_module_cctor = TRUE;
610 load_modules (MonoImage *image)
617 t = &image->tables [MONO_TABLE_MODULEREF];
618 image->modules = g_new0 (MonoImage *, t->rows);
619 image->modules_loaded = g_new0 (gboolean, t->rows);
620 image->module_count = t->rows;
624 * mono_image_load_module:
626 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
627 * it cannot be loaded.
630 mono_image_load_module (MonoImage *image, int idx)
633 MonoTableInfo *file_table;
636 gboolean refonly = image->ref_only;
637 GList *list_iter, *valid_modules = NULL;
638 MonoImageOpenStatus status;
640 if ((image->module_count == 0) || (idx > image->module_count || idx <= 0))
642 if (image->modules_loaded [idx - 1])
643 return image->modules [idx - 1];
645 file_table = &image->tables [MONO_TABLE_FILE];
646 for (i = 0; i < file_table->rows; i++) {
647 guint32 cols [MONO_FILE_SIZE];
648 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
649 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
651 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
654 t = &image->tables [MONO_TABLE_MODULEREF];
655 base_dir = g_path_get_dirname (image->name);
660 guint32 cols [MONO_MODULEREF_SIZE];
661 /* if there is no file table, we try to load the module... */
662 int valid = file_table->rows == 0;
664 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
665 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
666 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
667 /* be safe with string dups, but we could just compare string indexes */
668 if (strcmp (list_iter->data, name) == 0) {
674 module_ref = g_build_filename (base_dir, name, NULL);
675 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
676 if (image->modules [idx - 1]) {
677 mono_image_addref (image->modules [idx - 1]);
678 image->modules [idx - 1]->assembly = image->assembly;
680 if (image->modules [idx - 1]->is_module_handle)
681 mono_image_fixup_vtable (image->modules [idx - 1]);
683 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
689 image->modules_loaded [idx - 1] = TRUE;
692 g_list_free (valid_modules);
694 return image->modules [idx - 1];
698 class_key_extract (gpointer value)
700 MonoClass *klass = (MonoClass *)value;
702 return GUINT_TO_POINTER (klass->type_token);
706 class_next_value (gpointer value)
708 MonoClass *klass = (MonoClass *)value;
710 return (gpointer*)&klass->next_class_cache;
714 mono_image_init (MonoImage *image)
716 mono_os_mutex_init_recursive (&image->lock);
717 mono_os_mutex_init_recursive (&image->szarray_cache_lock);
719 image->mempool = mono_mempool_new_size (INITIAL_IMAGE_SIZE);
720 mono_internal_hash_table_init (&image->class_cache,
724 image->field_cache = mono_conc_hashtable_new (NULL, NULL);
726 image->typespec_cache = g_hash_table_new (NULL, NULL);
727 image->memberref_signatures = g_hash_table_new (NULL, NULL);
728 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
729 image->method_signatures = g_hash_table_new (NULL, NULL);
731 image->property_hash = mono_property_hash_new ();
734 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
735 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
736 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
737 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
738 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
747 * Returns < 0 to indicate an error.
750 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
752 MonoDotNetHeader64 header64;
755 if (!image->is_module_handle)
757 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
760 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
762 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
765 /* endian swap the fields common between PE and PE+ */
766 SWAP32 (header->coff.coff_time);
767 SWAP32 (header->coff.coff_symptr);
768 SWAP32 (header->coff.coff_symcount);
769 SWAP16 (header->coff.coff_machine);
770 SWAP16 (header->coff.coff_sections);
771 SWAP16 (header->coff.coff_opt_header_size);
772 SWAP16 (header->coff.coff_attributes);
774 SWAP32 (header->pe.pe_code_size);
775 SWAP32 (header->pe.pe_uninit_data_size);
776 SWAP32 (header->pe.pe_rva_entry_point);
777 SWAP32 (header->pe.pe_rva_code_base);
778 SWAP32 (header->pe.pe_rva_data_base);
779 SWAP16 (header->pe.pe_magic);
781 /* now we are ready for the basic tests */
783 if (header->pe.pe_magic == 0x10B) {
784 offset += sizeof (MonoDotNetHeader);
785 SWAP32 (header->pe.pe_data_size);
786 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
789 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
790 SWAP32 (header->nt.pe_stack_reserve);
791 SWAP32 (header->nt.pe_stack_commit);
792 SWAP32 (header->nt.pe_heap_reserve);
793 SWAP32 (header->nt.pe_heap_commit);
794 } else if (header->pe.pe_magic == 0x20B) {
795 /* PE32+ file format */
796 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
798 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
799 offset += sizeof (MonoDotNetHeader64);
800 /* copy the fields already swapped. the last field, pe_data_size, is missing */
801 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
802 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
803 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
805 SWAP64 (header64.nt.pe_image_base);
806 header->nt.pe_image_base = header64.nt.pe_image_base;
807 SWAP64 (header64.nt.pe_stack_reserve);
808 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
809 SWAP64 (header64.nt.pe_stack_commit);
810 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
811 SWAP64 (header64.nt.pe_heap_reserve);
812 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
813 SWAP64 (header64.nt.pe_heap_commit);
814 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
816 header->nt.pe_section_align = header64.nt.pe_section_align;
817 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
818 header->nt.pe_os_major = header64.nt.pe_os_major;
819 header->nt.pe_os_minor = header64.nt.pe_os_minor;
820 header->nt.pe_user_major = header64.nt.pe_user_major;
821 header->nt.pe_user_minor = header64.nt.pe_user_minor;
822 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
823 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
824 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
825 header->nt.pe_image_size = header64.nt.pe_image_size;
826 header->nt.pe_header_size = header64.nt.pe_header_size;
827 header->nt.pe_checksum = header64.nt.pe_checksum;
828 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
829 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
830 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
831 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
833 /* copy the datadir */
834 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
839 /* MonoPEHeaderNT: not used yet */
840 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
841 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
842 SWAP16 (header->nt.pe_os_major); /* must be 4 */
843 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
844 SWAP16 (header->nt.pe_user_major);
845 SWAP16 (header->nt.pe_user_minor);
846 SWAP16 (header->nt.pe_subsys_major);
847 SWAP16 (header->nt.pe_subsys_minor);
848 SWAP32 (header->nt.pe_reserved_1);
849 SWAP32 (header->nt.pe_image_size);
850 SWAP32 (header->nt.pe_header_size);
851 SWAP32 (header->nt.pe_checksum);
852 SWAP16 (header->nt.pe_subsys_required);
853 SWAP16 (header->nt.pe_dll_flags);
854 SWAP32 (header->nt.pe_loader_flags);
855 SWAP32 (header->nt.pe_data_dir_count);
857 /* MonoDotNetHeader: mostly unused */
858 SWAPPDE (header->datadir.pe_export_table);
859 SWAPPDE (header->datadir.pe_import_table);
860 SWAPPDE (header->datadir.pe_resource_table);
861 SWAPPDE (header->datadir.pe_exception_table);
862 SWAPPDE (header->datadir.pe_certificate_table);
863 SWAPPDE (header->datadir.pe_reloc_table);
864 SWAPPDE (header->datadir.pe_debug);
865 SWAPPDE (header->datadir.pe_copyright);
866 SWAPPDE (header->datadir.pe_global_ptr);
867 SWAPPDE (header->datadir.pe_tls_table);
868 SWAPPDE (header->datadir.pe_load_config_table);
869 SWAPPDE (header->datadir.pe_bound_import);
870 SWAPPDE (header->datadir.pe_iat);
871 SWAPPDE (header->datadir.pe_delay_import_desc);
872 SWAPPDE (header->datadir.pe_cli_header);
873 SWAPPDE (header->datadir.pe_reserved);
876 if (image->is_module_handle)
877 image->raw_data_len = header->nt.pe_image_size;
884 mono_image_load_pe_data (MonoImage *image)
886 return ((MonoImageLoader*)image->loader)->load_pe_data (image);
890 pe_image_load_pe_data (MonoImage *image)
892 MonoCLIImageInfo *iinfo;
893 MonoDotNetHeader *header;
894 MonoMSDOSHeader msdos;
897 iinfo = (MonoCLIImageInfo *)image->image_info;
898 header = &iinfo->cli_header;
901 if (!image->is_module_handle)
903 if (offset + sizeof (msdos) > image->raw_data_len)
905 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
907 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
910 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
912 offset = msdos.pe_offset;
914 offset = do_load_header (image, header, offset);
919 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
921 if (header->coff.coff_machine != 0x14c)
927 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
928 * which produces binaries with 7.0. From Sergey:
930 * The reason is that MSVC7 uses traditional compile/link
931 * sequence for CIL executables, and VS.NET (and Framework
932 * SDK) includes linker version 7, that puts 7.0 in this
933 * field. That's why it's currently not possible to load VC
934 * binaries with Mono. This field is pretty much meaningless
935 * anyway (what linker?).
937 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
942 * FIXME: byte swap all addresses here for header.
945 if (!load_section_tables (image, iinfo, offset))
955 mono_image_load_cli_data (MonoImage *image)
957 return ((MonoImageLoader*)image->loader)->load_cli_data (image);
961 pe_image_load_cli_data (MonoImage *image)
963 MonoCLIImageInfo *iinfo;
964 MonoDotNetHeader *header;
966 iinfo = (MonoCLIImageInfo *)image->image_info;
967 header = &iinfo->cli_header;
969 /* Load the CLI header */
970 if (!mono_image_load_cli_header (image, iinfo))
973 if (!mono_image_load_metadata (image, iinfo))
980 mono_image_load_names (MonoImage *image)
982 /* modules don't have an assembly table row */
983 if (image->tables [MONO_TABLE_ASSEMBLY].rows) {
984 image->assembly_name = mono_metadata_string_heap (image,
985 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
986 0, MONO_ASSEMBLY_NAME));
989 /* Portable pdb images don't have a MODULE row */
990 if (image->tables [MONO_TABLE_MODULE].rows) {
991 image->module_name = mono_metadata_string_heap (image,
992 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
993 0, MONO_MODULE_NAME));
998 pe_image_load_tables (MonoImage *image)
1004 pe_image_match (MonoImage *image)
1006 if (image->raw_data [0] == 'M' && image->raw_data [1] == 'Z')
1011 static const MonoImageLoader pe_loader = {
1013 pe_image_load_pe_data,
1014 pe_image_load_cli_data,
1015 pe_image_load_tables,
1019 install_pe_loader (void)
1021 mono_install_image_loader (&pe_loader);
1025 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
1026 gboolean care_about_cli, gboolean care_about_pecoff)
1028 MonoCLIImageInfo *iinfo;
1029 MonoDotNetHeader *header;
1030 GSList *errors = NULL;
1033 mono_profiler_module_event (image, MONO_PROFILE_START_LOAD);
1035 mono_image_init (image);
1037 iinfo = (MonoCLIImageInfo *)image->image_info;
1038 header = &iinfo->cli_header;
1040 if (!image->metadata_only) {
1041 for (l = image_loaders; l; l = l->next) {
1042 MonoImageLoader *loader = (MonoImageLoader *)l->data;
1043 if (loader->match (image)) {
1044 image->loader = loader;
1048 if (!image->loader) {
1050 *status = MONO_IMAGE_IMAGE_INVALID;
1055 *status = MONO_IMAGE_IMAGE_INVALID;
1057 if (care_about_pecoff == FALSE)
1060 if (image->loader == &pe_loader && !mono_verifier_verify_pe_data (image, &errors))
1063 if (!mono_image_load_pe_data (image))
1066 image->loader = (MonoImageLoader*)&pe_loader;
1069 if (care_about_cli == FALSE) {
1073 if (image->loader == &pe_loader && !mono_verifier_verify_cli_data (image, &errors))
1076 if (!mono_image_load_cli_data (image))
1079 if (image->loader == &pe_loader && !mono_verifier_verify_table_data (image, &errors))
1082 mono_image_load_names (image);
1084 load_modules (image);
1087 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
1089 *status = MONO_IMAGE_OK;
1095 MonoVerifyInfo *info = (MonoVerifyInfo *)errors->data;
1096 g_warning ("Could not load image %s due to %s", image->name, info->message);
1097 mono_free_verify_list (errors);
1099 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
1100 mono_image_close (image);
1105 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
1106 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly, gboolean metadata_only)
1108 MonoCLIImageInfo *iinfo;
1112 if ((filed = mono_file_map_open (fname)) == NULL){
1113 if (IS_PORTABILITY_SET) {
1114 gchar *ffname = mono_portability_find_file (fname, TRUE);
1116 filed = mono_file_map_open (ffname);
1121 if (filed == NULL) {
1123 *status = MONO_IMAGE_ERROR_ERRNO;
1128 image = g_new0 (MonoImage, 1);
1129 image->raw_buffer_used = TRUE;
1130 image->raw_data_len = mono_file_map_size (filed);
1131 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);
1132 #if defined(HAVE_MMAP) && !defined (HOST_WIN32)
1133 if (!image->raw_data) {
1134 image->fileio_used = TRUE;
1135 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);
1138 if (!image->raw_data) {
1139 mono_file_map_close (filed);
1142 *status = MONO_IMAGE_IMAGE_INVALID;
1145 iinfo = g_new0 (MonoCLIImageInfo, 1);
1146 image->image_info = iinfo;
1147 image->name = mono_path_resolve_symlinks (fname);
1148 image->ref_only = refonly;
1149 image->metadata_only = metadata_only;
1150 image->ref_count = 1;
1151 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
1152 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
1154 mono_file_map_close (filed);
1155 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
1159 * mono_image_loaded:
1160 * @name: path or assembly name of the image to load
1161 * @refonly: Check with respect to reflection-only loads?
1163 * This routine verifies that the given image is loaded.
1164 * It checks either reflection-only loads only, or normal loads only, as specified by parameter.
1166 * Returns: the loaded MonoImage, or NULL on failure.
1169 mono_image_loaded_full (const char *name, gboolean refonly)
1173 mono_images_lock ();
1174 res = (MonoImage *)g_hash_table_lookup (get_loaded_images_hash (refonly), name);
1176 res = (MonoImage *)g_hash_table_lookup (get_loaded_images_by_name_hash (refonly), name);
1177 mono_images_unlock ();
1183 * mono_image_loaded:
1184 * @name: path or assembly name of the image to load
1186 * This routine verifies that the given image is loaded. Reflection-only loads do not count.
1188 * Returns: the loaded MonoImage, or NULL on failure.
1191 mono_image_loaded (const char *name)
1193 return mono_image_loaded_full (name, FALSE);
1202 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1204 GuidData *data = (GuidData *)user_data;
1209 image = (MonoImage *)val;
1210 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1215 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1218 GHashTable *loaded_images = get_loaded_images_hash (refonly);
1222 mono_images_lock ();
1223 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1224 mono_images_unlock ();
1229 mono_image_loaded_by_guid (const char *guid)
1231 return mono_image_loaded_by_guid_full (guid, FALSE);
1235 register_image (MonoImage *image)
1238 GHashTable *loaded_images = get_loaded_images_hash (image->ref_only);
1240 mono_images_lock ();
1241 image2 = (MonoImage *)g_hash_table_lookup (loaded_images, image->name);
1244 /* Somebody else beat us to it */
1245 mono_image_addref (image2);
1246 mono_images_unlock ();
1247 mono_image_close (image);
1251 GHashTable *loaded_images_by_name = get_loaded_images_by_name_hash (image->ref_only);
1252 g_hash_table_insert (loaded_images, image->name, image);
1253 if (image->assembly_name && (g_hash_table_lookup (loaded_images_by_name, image->assembly_name) == NULL))
1254 g_hash_table_insert (loaded_images_by_name, (char *) image->assembly_name, image);
1255 mono_images_unlock ();
1261 mono_image_open_from_data_internal (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, gboolean metadata_only, const char *name)
1263 MonoCLIImageInfo *iinfo;
1267 if (!data || !data_len) {
1269 *status = MONO_IMAGE_IMAGE_INVALID;
1274 datac = (char *)g_try_malloc (data_len);
1277 *status = MONO_IMAGE_ERROR_ERRNO;
1280 memcpy (datac, data, data_len);
1283 image = g_new0 (MonoImage, 1);
1284 image->raw_data = datac;
1285 image->raw_data_len = data_len;
1286 image->raw_data_allocated = need_copy;
1287 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1288 iinfo = g_new0 (MonoCLIImageInfo, 1);
1289 image->image_info = iinfo;
1290 image->ref_only = refonly;
1291 image->metadata_only = metadata_only;
1293 image = do_mono_image_load (image, status, TRUE, TRUE);
1297 return register_image (image);
1301 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1303 return mono_image_open_from_data_internal (data, data_len, need_copy, status, refonly, FALSE, name);
1307 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1309 return mono_image_open_from_data_with_name (data, data_len, need_copy, status, refonly, NULL);
1313 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1315 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1319 /* fname is not duplicated. */
1321 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1324 MonoCLIImageInfo* iinfo;
1326 image = g_new0 (MonoImage, 1);
1327 image->raw_data = (char*) module_handle;
1328 image->is_module_handle = TRUE;
1329 iinfo = g_new0 (MonoCLIImageInfo, 1);
1330 image->image_info = iinfo;
1331 image->name = fname;
1332 image->ref_count = has_entry_point ? 0 : 1;
1333 image->has_entry_point = has_entry_point;
1335 image = do_mono_image_load (image, status, TRUE, TRUE);
1339 return register_image (image);
1344 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1347 GHashTable *loaded_images = get_loaded_images_hash (refonly);
1350 g_return_val_if_fail (fname != NULL, NULL);
1353 // Win32 path: If we are running with mixed-mode assemblies enabled (ie have loaded mscoree.dll),
1354 // then assemblies need to be loaded with LoadLibrary:
1355 if (!refonly && coree_module_handle) {
1356 HMODULE module_handle;
1357 guint16 *fname_utf16;
1360 absfname = mono_path_resolve_symlinks (fname);
1363 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1364 mono_images_lock ();
1365 image = g_hash_table_lookup (loaded_images, absfname);
1366 if (image) { // Image already loaded
1367 g_assert (image->is_module_handle);
1368 if (image->has_entry_point && image->ref_count == 0) {
1369 /* Increment reference count on images loaded outside of the runtime. */
1370 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1371 /* The image is already loaded because _CorDllMain removes images from the hash. */
1372 module_handle = LoadLibrary (fname_utf16);
1373 g_assert (module_handle == (HMODULE) image->raw_data);
1375 mono_image_addref (image);
1376 mono_images_unlock ();
1378 g_free (fname_utf16);
1383 // Image not loaded, load it now
1384 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1385 module_handle = MonoLoadImage (fname_utf16);
1386 if (status && module_handle == NULL)
1387 last_error = GetLastError ();
1389 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1390 image = g_hash_table_lookup (loaded_images, absfname);
1392 mono_image_addref (image);
1393 mono_images_unlock ();
1395 g_free (fname_utf16);
1397 if (module_handle == NULL) {
1401 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT)
1402 *status = MONO_IMAGE_IMAGE_INVALID;
1404 if (last_error == ERROR_FILE_NOT_FOUND || last_error == ERROR_PATH_NOT_FOUND)
1414 g_assert (image->is_module_handle);
1415 g_assert (image->has_entry_point);
1420 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
1424 absfname = mono_path_canonicalize (fname);
1427 * The easiest solution would be to do all the loading inside the mutex,
1428 * but that would lead to scalability problems. So we let the loading
1429 * happen outside the mutex, and if multiple threads happen to load
1430 * the same image, we discard all but the first copy.
1432 mono_images_lock ();
1433 image = (MonoImage *)g_hash_table_lookup (loaded_images, absfname);
1436 if (image) { // Image already loaded
1437 mono_image_addref (image);
1438 mono_images_unlock ();
1441 mono_images_unlock ();
1443 // Image not loaded, load it now
1444 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly, FALSE);
1448 return register_image (image);
1453 * @fname: filename that points to the module we want to open
1454 * @status: An error condition is returned in this field
1456 * Returns: An open image of type %MonoImage or NULL on error.
1457 * The caller holds a temporary reference to the returned image which should be cleared
1458 * when no longer needed by calling mono_image_close ().
1459 * if NULL, then check the value of @status for details on the error
1462 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1464 return mono_image_open_full (fname, status, FALSE);
1468 * mono_pe_file_open:
1469 * @fname: filename that points to the module we want to open
1470 * @status: An error condition is returned in this field
1472 * Returns: An open image of type %MonoImage or NULL on error. if
1473 * NULL, then check the value of @status for details on the error.
1474 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1475 * It's just a PE file loader, used for FileVersionInfo. It also does
1476 * not use the image cache.
1479 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1481 g_return_val_if_fail (fname != NULL, NULL);
1483 return do_mono_image_open (fname, status, FALSE, TRUE, FALSE, FALSE);
1487 * mono_image_open_raw
1488 * @fname: filename that points to the module we want to open
1489 * @status: An error condition is returned in this field
1491 * Returns an image without loading neither pe or cli data.
1493 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
1496 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
1498 g_return_val_if_fail (fname != NULL, NULL);
1500 return do_mono_image_open (fname, status, FALSE, FALSE, FALSE, FALSE);
1504 * mono_image_open_metadata_only:
1506 * Open an image which contains metadata only without a PE header.
1509 mono_image_open_metadata_only (const char *fname, MonoImageOpenStatus *status)
1511 return do_mono_image_open (fname, status, TRUE, TRUE, FALSE, TRUE);
1515 mono_image_fixup_vtable (MonoImage *image)
1518 MonoCLIImageInfo *iinfo;
1520 MonoVTableFixup *vtfixup;
1526 g_assert (image->is_module_handle);
1528 iinfo = image->image_info;
1529 de = &iinfo->cli_cli_header.ch_vtable_fixups;
1530 if (!de->rva || !de->size)
1532 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
1536 count = de->size / sizeof (MonoVTableFixup);
1538 if (!vtfixup->rva || !vtfixup->count)
1541 slot = mono_image_rva_map (image, vtfixup->rva);
1543 slot_type = vtfixup->type;
1544 slot_count = vtfixup->count;
1545 if (slot_type & VTFIXUP_TYPE_32BIT)
1546 while (slot_count--) {
1547 *((guint32*) slot) = (guint32) mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
1548 slot = ((guint32*) slot) + 1;
1550 else if (slot_type & VTFIXUP_TYPE_64BIT)
1551 while (slot_count--) {
1552 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
1553 slot = ((guint32*) slot) + 1;
1556 g_assert_not_reached();
1561 g_assert_not_reached();
1566 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1568 g_hash_table_destroy ((GHashTable*)val);
1573 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1575 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1580 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1582 g_slist_free ((GSList*)val);
1586 * mono_image_addref:
1587 * @image: The image file we wish to add a reference to
1589 * Increases the reference count of an image.
1592 mono_image_addref (MonoImage *image)
1594 InterlockedIncrement (&image->ref_count);
1598 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1600 stream->alloc_size = stream->index = stream->offset = 0;
1601 g_free (stream->data);
1602 stream->data = NULL;
1604 g_hash_table_destroy (stream->hash);
1605 stream->hash = NULL;
1610 free_hash (GHashTable *hash)
1613 g_hash_table_destroy (hash);
1617 mono_wrapper_caches_free (MonoWrapperCaches *cache)
1619 free_hash (cache->delegate_invoke_cache);
1620 free_hash (cache->delegate_begin_invoke_cache);
1621 free_hash (cache->delegate_end_invoke_cache);
1622 free_hash (cache->runtime_invoke_cache);
1623 free_hash (cache->runtime_invoke_vtype_cache);
1625 free_hash (cache->delegate_abstract_invoke_cache);
1627 free_hash (cache->runtime_invoke_direct_cache);
1628 free_hash (cache->managed_wrapper_cache);
1630 free_hash (cache->native_wrapper_cache);
1631 free_hash (cache->native_wrapper_aot_cache);
1632 free_hash (cache->native_wrapper_check_cache);
1633 free_hash (cache->native_wrapper_aot_check_cache);
1635 free_hash (cache->native_func_wrapper_aot_cache);
1636 free_hash (cache->remoting_invoke_cache);
1637 free_hash (cache->synchronized_cache);
1638 free_hash (cache->unbox_wrapper_cache);
1639 free_hash (cache->cominterop_invoke_cache);
1640 free_hash (cache->cominterop_wrapper_cache);
1641 free_hash (cache->thunk_invoke_cache);
1645 * Returns whether mono_image_close_finish() must be called as well.
1646 * We must unload images in two steps because clearing the domain in
1647 * SGen requires the class metadata to be intact, but we need to free
1648 * the mono_g_hash_tables in case a collection occurs during domain
1649 * unloading and the roots would trip up the GC.
1652 mono_image_close_except_pools (MonoImage *image)
1655 GHashTable *loaded_images, *loaded_images_by_name;
1658 g_return_val_if_fail (image != NULL, FALSE);
1661 * Atomically decrement the refcount and remove ourselves from the hash tables, so
1662 * register_image () can't grab an image which is being closed.
1664 mono_images_lock ();
1666 if (InterlockedDecrement (&image->ref_count) > 0) {
1667 mono_images_unlock ();
1671 loaded_images = get_loaded_images_hash (image->ref_only);
1672 loaded_images_by_name = get_loaded_images_by_name_hash (image->ref_only);
1673 image2 = (MonoImage *)g_hash_table_lookup (loaded_images, image->name);
1674 if (image == image2) {
1675 /* This is not true if we are called from mono_image_open () */
1676 g_hash_table_remove (loaded_images, image->name);
1678 if (image->assembly_name && (g_hash_table_lookup (loaded_images_by_name, image->assembly_name) == image))
1679 g_hash_table_remove (loaded_images_by_name, (char *) image->assembly_name);
1681 mono_images_unlock ();
1684 if (image->is_module_handle && image->has_entry_point) {
1685 mono_images_lock ();
1686 if (image->ref_count == 0) {
1687 /* Image will be closed by _CorDllMain. */
1688 FreeLibrary ((HMODULE) image->raw_data);
1689 mono_images_unlock ();
1692 mono_images_unlock ();
1696 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1698 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1700 mono_image_invoke_unload_hook (image);
1702 mono_metadata_clean_for_image (image);
1705 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1706 * assemblies, so we can't release these references in mono_assembly_close () since the
1707 * MonoImage might outlive its associated MonoAssembly.
1709 if (image->references && !image_is_dynamic (image)) {
1710 for (i = 0; i < image->nreferences; i++) {
1711 if (image->references [i] && image->references [i] != REFERENCE_MISSING) {
1712 if (!mono_assembly_close_except_image_pools (image->references [i]))
1713 image->references [i] = NULL;
1717 if (image->references) {
1718 g_free (image->references);
1719 image->references = NULL;
1724 mono_images_lock ();
1725 if (image->is_module_handle && !image->has_entry_point)
1726 FreeLibrary ((HMODULE) image->raw_data);
1727 mono_images_unlock ();
1730 if (image->raw_buffer_used) {
1731 if (image->raw_data != NULL) {
1733 if (image->fileio_used)
1734 mono_file_unmap_fileio (image->raw_data, image->raw_data_handle);
1737 mono_file_unmap (image->raw_data, image->raw_data_handle);
1741 if (image->raw_data_allocated) {
1742 /* FIXME: do we need this? (image is disposed anyway) */
1743 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1744 MonoCLIImageInfo *ii = (MonoCLIImageInfo *)image->image_info;
1746 if ((image->raw_metadata > image->raw_data) &&
1747 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1748 image->raw_metadata = NULL;
1750 for (i = 0; i < ii->cli_section_count; i++)
1751 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1752 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1753 ii->cli_sections [i] = NULL;
1755 g_free (image->raw_data);
1758 if (debug_assembly_unload) {
1759 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1761 g_free (image->name);
1762 g_free (image->guid);
1763 g_free (image->version);
1764 g_free (image->files);
1767 if (image->method_cache)
1768 g_hash_table_destroy (image->method_cache);
1769 if (image->methodref_cache)
1770 g_hash_table_destroy (image->methodref_cache);
1771 mono_internal_hash_table_destroy (&image->class_cache);
1772 mono_conc_hashtable_destroy (image->field_cache);
1773 if (image->array_cache) {
1774 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1775 g_hash_table_destroy (image->array_cache);
1777 if (image->szarray_cache)
1778 g_hash_table_destroy (image->szarray_cache);
1779 if (image->ptr_cache)
1780 g_hash_table_destroy (image->ptr_cache);
1781 if (image->name_cache) {
1782 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1783 g_hash_table_destroy (image->name_cache);
1786 free_hash (image->delegate_bound_static_invoke_cache);
1787 free_hash (image->runtime_invoke_vcall_cache);
1788 free_hash (image->ldfld_wrapper_cache);
1789 free_hash (image->ldflda_wrapper_cache);
1790 free_hash (image->stfld_wrapper_cache);
1791 free_hash (image->isinst_cache);
1792 free_hash (image->castclass_cache);
1793 free_hash (image->proxy_isinst_cache);
1794 free_hash (image->var_cache_slow);
1795 free_hash (image->mvar_cache_slow);
1796 free_hash (image->var_cache_constrained);
1797 free_hash (image->mvar_cache_constrained);
1798 free_hash (image->wrapper_param_names);
1799 free_hash (image->pinvoke_scopes);
1800 free_hash (image->pinvoke_scope_filenames);
1801 free_hash (image->native_func_wrapper_cache);
1802 free_hash (image->typespec_cache);
1804 mono_wrapper_caches_free (&image->wrapper_caches);
1806 for (i = 0; i < image->gshared_types_len; ++i)
1807 free_hash (image->gshared_types [i]);
1808 g_free (image->gshared_types);
1810 /* The ownership of signatures is not well defined */
1811 g_hash_table_destroy (image->memberref_signatures);
1812 g_hash_table_destroy (image->helper_signatures);
1813 g_hash_table_destroy (image->method_signatures);
1815 if (image->rgctx_template_hash)
1816 g_hash_table_destroy (image->rgctx_template_hash);
1818 if (image->property_hash)
1819 mono_property_hash_destroy (image->property_hash);
1822 reflection_info_unregister_classes is only required by dynamic images, which will not be properly
1823 cleared during shutdown as we don't perform regular appdomain unload for the root one.
1825 g_assert (!image->reflection_info_unregister_classes || mono_runtime_is_shutting_down ());
1826 image->reflection_info_unregister_classes = NULL;
1828 if (image->interface_bitset) {
1829 mono_unload_interface_ids (image->interface_bitset);
1830 mono_bitset_free (image->interface_bitset);
1832 if (image->image_info){
1833 MonoCLIImageInfo *ii = (MonoCLIImageInfo *)image->image_info;
1835 if (ii->cli_section_tables)
1836 g_free (ii->cli_section_tables);
1837 if (ii->cli_sections)
1838 g_free (ii->cli_sections);
1839 g_free (image->image_info);
1842 for (i = 0; i < image->module_count; ++i) {
1843 if (image->modules [i]) {
1844 if (!mono_image_close_except_pools (image->modules [i]))
1845 image->modules [i] = NULL;
1848 if (image->modules_loaded)
1849 g_free (image->modules_loaded);
1851 mono_os_mutex_destroy (&image->szarray_cache_lock);
1852 mono_os_mutex_destroy (&image->lock);
1854 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1855 if (image_is_dynamic (image)) {
1856 /* Dynamic images are GC_MALLOCed */
1857 g_free ((char*)image->module_name);
1858 mono_dynamic_image_free ((MonoDynamicImage*)image);
1861 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1867 mono_image_close_finish (MonoImage *image)
1871 if (image->references && !image_is_dynamic (image)) {
1872 for (i = 0; i < image->nreferences; i++) {
1873 if (image->references [i] && image->references [i] != REFERENCE_MISSING)
1874 mono_assembly_close_finish (image->references [i]);
1877 g_free (image->references);
1878 image->references = NULL;
1881 for (i = 0; i < image->module_count; ++i) {
1882 if (image->modules [i])
1883 mono_image_close_finish (image->modules [i]);
1886 g_free (image->modules);
1888 #ifndef DISABLE_PERFCOUNTERS
1889 mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
1892 if (!image_is_dynamic (image)) {
1893 if (debug_assembly_unload)
1894 mono_mempool_invalidate (image->mempool);
1896 mono_mempool_destroy (image->mempool);
1900 if (debug_assembly_unload)
1901 mono_mempool_invalidate (image->mempool);
1903 mono_mempool_destroy (image->mempool);
1904 mono_dynamic_image_free_image ((MonoDynamicImage*)image);
1911 * @image: The image file we wish to close
1913 * Closes an image file, deallocates all memory consumed and
1914 * unmaps all possible sections of the file
1917 mono_image_close (MonoImage *image)
1919 if (mono_image_close_except_pools (image))
1920 mono_image_close_finish (image);
1924 * mono_image_strerror:
1925 * @status: an code indicating the result from a recent operation
1927 * Returns: a string describing the error
1930 mono_image_strerror (MonoImageOpenStatus status)
1935 case MONO_IMAGE_ERROR_ERRNO:
1936 return strerror (errno);
1937 case MONO_IMAGE_IMAGE_INVALID:
1938 return "File does not contain a valid CIL image";
1939 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1940 return "An assembly was referenced, but could not be found";
1942 return "Internal error";
1946 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1947 guint32 lang_id, gunichar2 *name,
1948 MonoPEResourceDirEntry *entry,
1949 MonoPEResourceDir *root, guint32 level)
1951 gboolean is_string, is_dir;
1952 guint32 name_offset, dir_offset;
1954 /* Level 0 holds a directory entry for each type of resource
1955 * (identified by ID or name).
1957 * Level 1 holds a directory entry for each named resource
1958 * item, and each "anonymous" item of a particular type of
1961 * Level 2 holds a directory entry for each language pointing to
1964 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
1965 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
1967 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
1968 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
1973 } else if (level==1) {
1974 if (res_id != name_offset)
1978 is_string==TRUE && name!=lookup (name_offset)) {
1982 } else if (level==2) {
1983 if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
1986 g_assert_not_reached ();
1990 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1991 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1994 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1996 for(i=0; i<entries; i++) {
1997 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
2000 ret=mono_image_walk_resource_tree (info, res_id,
2011 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
2012 MonoPEResourceDataEntry *res;
2014 res = g_new0 (MonoPEResourceDataEntry, 1);
2016 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
2017 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
2018 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
2019 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
2026 * mono_image_lookup_resource:
2027 * @image: the image to look up the resource in
2028 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
2029 * @lang_id: The language id.
2030 * @name: the resource name to lookup.
2032 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
2033 * of the given resource. The caller should free it using g_free () when no longer
2037 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
2039 MonoCLIImageInfo *info;
2040 MonoDotNetHeader *header;
2041 MonoPEDatadir *datadir;
2042 MonoPEDirEntry *rsrc;
2043 MonoPEResourceDir *resource_dir;
2044 MonoPEResourceDirEntry *res_entries;
2051 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
2053 info = (MonoCLIImageInfo *)image->image_info;
2058 header=&info->cli_header;
2063 datadir=&header->datadir;
2068 rsrc=&datadir->pe_resource_table;
2073 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
2074 if(resource_dir==NULL) {
2078 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
2079 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
2081 for(i=0; i<entries; i++) {
2082 MonoPEResourceDirEntry *entry=&res_entries[i];
2085 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
2086 name, entry, resource_dir,
2097 * mono_image_get_entry_point:
2098 * @image: the image where the entry point will be looked up.
2100 * Use this routine to determine the metadata token for method that
2101 * has been flagged as the entry point.
2103 * Returns: the token for the entry point method in the image
2106 mono_image_get_entry_point (MonoImage *image)
2108 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
2112 * mono_image_get_resource:
2113 * @image: the image where the resource will be looked up.
2114 * @offset: The offset to add to the resource
2115 * @size: a pointer to an int where the size of the resource will be stored
2117 * This is a low-level routine that fetches a resource from the
2118 * metadata that starts at a given @offset. The @size parameter is
2119 * filled with the data field as encoded in the metadata.
2121 * Returns: the pointer to the resource whose offset is @offset.
2124 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
2126 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2127 MonoCLIHeader *ch = &iinfo->cli_cli_header;
2130 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
2133 data = mono_image_rva_map (image, ch->ch_resources.rva);
2138 *size = read32 (data);
2144 mono_image_load_file_for_image (MonoImage *image, int fileidx)
2146 char *base_dir, *name;
2148 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
2152 if (fileidx < 1 || fileidx > t->rows)
2155 mono_image_lock (image);
2156 if (image->files && image->files [fileidx - 1]) {
2157 mono_image_unlock (image);
2158 return image->files [fileidx - 1];
2160 mono_image_unlock (image);
2162 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
2163 fname = mono_metadata_string_heap (image, fname_id);
2164 base_dir = g_path_get_dirname (image->name);
2165 name = g_build_filename (base_dir, fname, NULL);
2166 res = mono_image_open (name, NULL);
2170 mono_image_lock (image);
2171 if (image->files && image->files [fileidx - 1]) {
2172 MonoImage *old = res;
2173 res = image->files [fileidx - 1];
2174 mono_image_unlock (image);
2175 mono_image_close (old);
2178 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
2179 res->assembly = image->assembly;
2180 for (i = 0; i < res->module_count; ++i) {
2181 if (res->modules [i] && !res->modules [i]->assembly)
2182 res->modules [i]->assembly = image->assembly;
2186 image->files = g_new0 (MonoImage*, t->rows);
2187 image->files [fileidx - 1] = res;
2188 mono_image_unlock (image);
2189 /* vtable fixup can't happen with the image lock held */
2191 if (res->is_module_handle)
2192 mono_image_fixup_vtable (res);
2203 * mono_image_get_strong_name:
2204 * @image: a MonoImage
2205 * @size: a guint32 pointer, or NULL.
2207 * If the image has a strong name, and @size is not NULL, the value
2208 * pointed to by size will have the size of the strong name.
2210 * Returns: NULL if the image does not have a strong name, or a
2211 * pointer to the public key.
2214 mono_image_get_strong_name (MonoImage *image, guint32 *size)
2216 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2217 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2220 if (!de->size || !de->rva)
2222 data = mono_image_rva_map (image, de->rva);
2231 * mono_image_strong_name_position:
2232 * @image: a MonoImage
2233 * @size: a guint32 pointer, or NULL.
2235 * If the image has a strong name, and @size is not NULL, the value
2236 * pointed to by size will have the size of the strong name.
2238 * Returns: the position within the image file where the strong name
2242 mono_image_strong_name_position (MonoImage *image, guint32 *size)
2244 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2245 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2250 if (!de->size || !de->rva)
2252 pos = mono_cli_rva_image_map (image, de->rva);
2253 return pos == INVALID_ADDRESS ? 0 : pos;
2257 * mono_image_get_public_key:
2258 * @image: a MonoImage
2259 * @size: a guint32 pointer, or NULL.
2261 * This is used to obtain the public key in the @image.
2263 * If the image has a public key, and @size is not NULL, the value
2264 * pointed to by size will have the size of the public key.
2266 * Returns: NULL if the image does not have a public key, or a pointer
2267 * to the public key.
2270 mono_image_get_public_key (MonoImage *image, guint32 *size)
2275 if (image_is_dynamic (image)) {
2277 *size = ((MonoDynamicImage*)image)->public_key_len;
2278 return (char*)((MonoDynamicImage*)image)->public_key;
2280 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2282 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2285 pubkey = mono_metadata_blob_heap (image, tok);
2286 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2293 * mono_image_get_name:
2294 * @name: a MonoImage
2296 * Returns: the name of the assembly.
2299 mono_image_get_name (MonoImage *image)
2301 return image->assembly_name;
2305 * mono_image_get_filename:
2306 * @image: a MonoImage
2308 * Used to get the filename that hold the actual MonoImage
2310 * Returns: the filename.
2313 mono_image_get_filename (MonoImage *image)
2319 mono_image_get_guid (MonoImage *image)
2324 const MonoTableInfo*
2325 mono_image_get_table_info (MonoImage *image, int table_id)
2327 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2329 return &image->tables [table_id];
2333 mono_image_get_table_rows (MonoImage *image, int table_id)
2335 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2337 return image->tables [table_id].rows;
2341 mono_table_info_get_rows (const MonoTableInfo *table)
2347 * mono_image_get_assembly:
2348 * @image: the MonoImage.
2350 * Use this routine to get the assembly that owns this image.
2352 * Returns: the assembly that holds this image.
2355 mono_image_get_assembly (MonoImage *image)
2357 return image->assembly;
2361 * mono_image_is_dynamic:
2362 * @image: the MonoImage
2364 * Determines if the given image was created dynamically through the
2365 * System.Reflection.Emit API
2367 * Returns: TRUE if the image was created dynamically, FALSE if not.
2370 mono_image_is_dynamic (MonoImage *image)
2372 return image_is_dynamic (image);
2376 * mono_image_has_authenticode_entry:
2377 * @image: the MonoImage
2379 * Use this routine to determine if the image has a Authenticode
2380 * Certificate Table.
2382 * Returns: TRUE if the image contains an authenticode entry in the PE
2386 mono_image_has_authenticode_entry (MonoImage *image)
2388 MonoCLIImageInfo *iinfo = (MonoCLIImageInfo *)image->image_info;
2389 MonoDotNetHeader *header = &iinfo->cli_header;
2390 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
2391 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
2392 return ((de->rva != 0) && (de->size > 8));
2396 mono_image_alloc (MonoImage *image, guint size)
2400 #ifndef DISABLE_PERFCOUNTERS
2401 mono_perfcounters->loader_bytes += size;
2403 mono_image_lock (image);
2404 res = mono_mempool_alloc (image->mempool, size);
2405 mono_image_unlock (image);
2411 mono_image_alloc0 (MonoImage *image, guint size)
2415 #ifndef DISABLE_PERFCOUNTERS
2416 mono_perfcounters->loader_bytes += size;
2418 mono_image_lock (image);
2419 res = mono_mempool_alloc0 (image->mempool, size);
2420 mono_image_unlock (image);
2426 mono_image_strdup (MonoImage *image, const char *s)
2430 #ifndef DISABLE_PERFCOUNTERS
2431 mono_perfcounters->loader_bytes += strlen (s);
2433 mono_image_lock (image);
2434 res = mono_mempool_strdup (image->mempool, s);
2435 mono_image_unlock (image);
2441 g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
2445 new_list = (GList *)mono_image_alloc (image, sizeof (GList));
2446 new_list->data = data;
2447 new_list->prev = list ? list->prev : NULL;
2448 new_list->next = list;
2451 new_list->prev->next = new_list;
2453 list->prev = new_list;
2459 g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
2463 new_list = (GSList *)mono_image_alloc (image, sizeof (GSList));
2464 new_list->data = data;
2465 new_list->next = NULL;
2467 return g_slist_concat (list, new_list);
2471 mono_image_lock (MonoImage *image)
2473 mono_locks_os_acquire (&image->lock, ImageDataLock);
2477 mono_image_unlock (MonoImage *image)
2479 mono_locks_os_release (&image->lock, ImageDataLock);
2484 * mono_image_property_lookup:
2486 * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
2488 * LOCKING: Takes the image lock
2491 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
2495 mono_image_lock (image);
2496 res = mono_property_hash_lookup (image->property_hash, subject, property);
2497 mono_image_unlock (image);
2503 * mono_image_property_insert:
2505 * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2507 * LOCKING: Takes the image lock
2510 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
2512 mono_image_lock (image);
2513 mono_property_hash_insert (image->property_hash, subject, property, value);
2514 mono_image_unlock (image);
2518 * mono_image_property_remove:
2520 * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2522 * LOCKING: Takes the image lock
2525 mono_image_property_remove (MonoImage *image, gpointer subject)
2527 mono_image_lock (image);
2528 mono_property_hash_remove_object (image->property_hash, subject);
2529 mono_image_unlock (image);
2533 mono_image_append_class_to_reflection_info_set (MonoClass *klass)
2535 MonoImage *image = klass->image;
2536 g_assert (image_is_dynamic (image));
2537 mono_image_lock (image);
2538 image->reflection_info_unregister_classes = g_slist_prepend_mempool (image->mempool, image->reflection_info_unregister_classes, klass);
2539 mono_image_unlock (image);
2542 // 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.
2545 * mono_find_image_owner:
2547 * Find the image, if any, which a given pointer is located in the memory of.
2550 mono_find_image_owner (void *ptr)
2552 mono_images_lock ();
2554 MonoImage *owner = NULL;
2556 // Iterate over both by-path image hashes
2557 const int hash_candidates[] = {IMAGES_HASH_PATH, IMAGES_HASH_PATH_REFONLY};
2559 for (hash_idx = 0; !owner && hash_idx < G_N_ELEMENTS (hash_candidates); hash_idx++)
2561 GHashTable *target = loaded_images_hashes [hash_candidates [hash_idx]];
2562 GHashTableIter iter;
2565 // Iterate over images within a hash
2566 g_hash_table_iter_init (&iter, target);
2567 while (!owner && g_hash_table_iter_next(&iter, NULL, (gpointer *)&image))
2569 mono_image_lock (image);
2570 if (mono_mempool_contains_addr (image->mempool, ptr))
2572 mono_image_unlock (image);
2576 mono_images_unlock ();