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 * (C) 2001-2003 Ximian, Inc. http://www.ximian.com
20 #include "rawbuffer.h"
21 #include "mono-endian.h"
22 #include "tabledefs.h"
23 #include "tokentype.h"
24 #include "metadata-internals.h"
25 #include "profiler-private.h"
27 #include <mono/io-layer/io-layer.h>
28 #include <mono/utils/mono-logger.h>
29 #include <mono/utils/mono-path.h>
30 #include <mono/utils/mono-io-portability.h>
31 #include <mono/metadata/class-internals.h>
32 #include <mono/metadata/assembly.h>
33 #include <sys/types.h>
39 #define INVALID_ADDRESS 0xffffffff
42 * Keeps track of the various assemblies loaded
44 static GHashTable *loaded_images_hash;
45 static GHashTable *loaded_images_refonly_hash;
47 static gboolean debug_assembly_unload = FALSE;
49 #define mono_images_lock() EnterCriticalSection (&images_mutex)
50 #define mono_images_unlock() LeaveCriticalSection (&images_mutex)
51 static CRITICAL_SECTION images_mutex;
54 mono_cli_rva_image_map (MonoCLIImageInfo *iinfo, guint32 addr)
56 const int top = iinfo->cli_section_count;
57 MonoSectionTable *tables = iinfo->cli_section_tables;
60 for (i = 0; i < top; i++){
61 if ((addr >= tables->st_virtual_address) &&
62 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
63 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
67 return INVALID_ADDRESS;
71 * mono_images_rva_map:
73 * @addr: relative virtual address (RVA)
75 * This is a low-level routine used by the runtime to map relative
76 * virtual address (RVA) into their location in memory.
78 * Returns: the address in memory for the given RVA, or NULL if the
79 * RVA is not valid for this image.
82 mono_image_rva_map (MonoImage *image, guint32 addr)
84 MonoCLIImageInfo *iinfo = image->image_info;
85 const int top = iinfo->cli_section_count;
86 MonoSectionTable *tables = iinfo->cli_section_tables;
89 for (i = 0; i < top; i++){
90 if ((addr >= tables->st_virtual_address) &&
91 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
92 if (!iinfo->cli_sections [i]) {
93 if (!mono_image_ensure_section_idx (image, i))
96 return (char*)iinfo->cli_sections [i] +
97 (addr - tables->st_virtual_address);
107 * Initialize the global variables used by this module.
110 mono_images_init (void)
112 InitializeCriticalSection (&images_mutex);
114 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
115 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
117 debug_assembly_unload = getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
121 * mono_images_cleanup:
123 * Free all resources used by this module.
126 mono_images_cleanup (void)
128 DeleteCriticalSection (&images_mutex);
130 g_hash_table_destroy (loaded_images_hash);
131 g_hash_table_destroy (loaded_images_refonly_hash);
135 * mono_image_ensure_section_idx:
136 * @image: The image we are operating on
137 * @section: section number that we will load/map into memory
139 * This routine makes sure that we have an in-memory copy of
140 * an image section (.text, .rsrc, .data).
142 * Returns: TRUE on success
145 mono_image_ensure_section_idx (MonoImage *image, int section)
147 MonoCLIImageInfo *iinfo = image->image_info;
148 MonoSectionTable *sect;
151 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
153 if (iinfo->cli_sections [section] != NULL)
156 sect = &iinfo->cli_section_tables [section];
158 writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
160 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
162 /* FIXME: we ignore the writable flag since we don't patch the binary */
163 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
168 * mono_image_ensure_section:
169 * @image: The image we are operating on
170 * @section: section name that we will load/map into memory
172 * This routine makes sure that we have an in-memory copy of
173 * an image section (.text, .rsrc, .data).
175 * Returns: TRUE on success
178 mono_image_ensure_section (MonoImage *image, const char *section)
180 MonoCLIImageInfo *ii = image->image_info;
183 for (i = 0; i < ii->cli_section_count; i++){
184 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
187 return mono_image_ensure_section_idx (image, i);
193 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
195 const int top = iinfo->cli_header.coff.coff_sections;
198 iinfo->cli_section_count = top;
199 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
200 iinfo->cli_sections = g_new0 (void *, top);
202 for (i = 0; i < top; i++){
203 MonoSectionTable *t = &iinfo->cli_section_tables [i];
205 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
207 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
208 offset += sizeof (MonoSectionTable);
210 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
211 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
212 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
213 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
214 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
215 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
216 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
217 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
218 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
219 t->st_flags = GUINT32_FROM_LE (t->st_flags);
221 /* consistency checks here */
228 load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
232 offset = mono_cli_rva_image_map (iinfo, iinfo->cli_header.datadir.pe_cli_header.rva);
233 if (offset == INVALID_ADDRESS)
236 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
238 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
240 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
241 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
242 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
243 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
244 SWAP32 (iinfo->cli_cli_header.ch_size);
245 SWAP32 (iinfo->cli_cli_header.ch_flags);
246 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
247 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
248 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
249 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
250 SWAPPDE (iinfo->cli_cli_header.ch_resources);
251 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
252 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
253 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
254 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
255 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
256 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
257 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
258 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
259 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
260 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
261 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
262 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
263 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
268 /* Catch new uses of the fields that are supposed to be zero */
270 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
271 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
272 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
273 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
274 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
275 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
276 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
277 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
278 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
281 * No need to scare people who are testing this, I am just
282 * labelling this as a LAMESPEC
284 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
292 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
294 guint32 offset, size;
300 offset = mono_cli_rva_image_map (iinfo, iinfo->cli_cli_header.ch_metadata.rva);
301 if (offset == INVALID_ADDRESS)
304 size = iinfo->cli_cli_header.ch_metadata.size;
306 if (offset + size > image->raw_data_len)
308 image->raw_metadata = image->raw_data + offset;
310 ptr = image->raw_metadata;
312 if (strncmp (ptr, "BSJB", 4) == 0){
313 guint32 version_string_len;
316 image->md_version_major = read16 (ptr);
318 image->md_version_minor = read16 (ptr);
321 version_string_len = read32 (ptr);
323 image->version = g_strndup (ptr, version_string_len);
324 ptr += version_string_len;
325 pad = ptr - image->raw_metadata;
327 ptr += 4 - (pad % 4);
331 /* skip over flags */
334 streams = read16 (ptr);
337 for (i = 0; i < streams; i++){
338 if (strncmp (ptr + 8, "#~", 3) == 0){
339 image->heap_tables.data = image->raw_metadata + read32 (ptr);
340 image->heap_tables.size = read32 (ptr + 4);
342 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
343 image->heap_strings.data = image->raw_metadata + read32 (ptr);
344 image->heap_strings.size = read32 (ptr + 4);
346 } else if (strncmp (ptr + 8, "#US", 4) == 0){
347 image->heap_us.data = image->raw_metadata + read32 (ptr);
348 image->heap_us.size = read32 (ptr + 4);
350 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
351 image->heap_blob.data = image->raw_metadata + read32 (ptr);
352 image->heap_blob.size = read32 (ptr + 4);
354 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
355 image->heap_guid.data = image->raw_metadata + read32 (ptr);
356 image->heap_guid.size = read32 (ptr + 4);
358 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
359 image->heap_tables.data = image->raw_metadata + read32 (ptr);
360 image->heap_tables.size = read32 (ptr + 4);
362 image->uncompressed_metadata = TRUE;
363 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);
365 g_message ("Unknown heap type: %s\n", ptr + 8);
366 ptr += 8 + strlen (ptr + 8) + 1;
368 pad = ptr - image->raw_metadata;
370 ptr += 4 - (pad % 4);
373 g_assert (image->heap_guid.data);
374 g_assert (image->heap_guid.size >= 16);
376 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
382 * Load representation of logical metadata tables, from the "#~" stream
385 load_tables (MonoImage *image)
387 const char *heap_tables = image->heap_tables.data;
389 guint64 valid_mask, sorted_mask;
390 int valid = 0, table;
393 heap_sizes = heap_tables [6];
394 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
395 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
396 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
398 valid_mask = read64 (heap_tables + 8);
399 sorted_mask = read64 (heap_tables + 16);
400 rows = (const guint32 *) (heap_tables + 24);
402 for (table = 0; table < 64; table++){
403 if ((valid_mask & ((guint64) 1 << table)) == 0){
404 if (table > MONO_TABLE_LAST)
406 image->tables [table].rows = 0;
409 if (table > MONO_TABLE_LAST) {
410 g_warning("bits in valid must be zero above 0x2d (II - 23.1.6)");
412 image->tables [table].rows = read32 (rows);
414 /*if ((sorted_mask & ((guint64) 1 << table)) == 0){
415 g_print ("table %s (0x%02x) is sorted\n", mono_meta_table_name (table), table);
421 image->tables_base = (heap_tables + 24) + (4 * valid);
423 /* They must be the same */
424 g_assert ((const void *) image->tables_base == (const void *) rows);
426 mono_metadata_compute_table_bases (image);
431 load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
433 if (!load_metadata_ptrs (image, iinfo))
436 return load_tables (image);
440 mono_image_check_for_module_cctor (MonoImage *image)
442 MonoTableInfo *t, *mt;
443 t = &image->tables [MONO_TABLE_TYPEDEF];
444 mt = &image->tables [MONO_TABLE_METHOD];
445 if (mono_get_runtime_info ()->framework_version [0] == '1') {
446 image->checked_module_cctor = TRUE;
449 if (image->dynamic) {
451 image->checked_module_cctor = TRUE;
455 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
456 const char *name = mono_metadata_string_heap (image, nameidx);
457 if (strcmp (name, "<Module>") == 0) {
458 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
461 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
463 last_method = mt->rows;
464 for (; first_method < last_method; first_method++) {
465 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
466 name = mono_metadata_string_heap (image, nameidx);
467 if (strcmp (name, ".cctor") == 0) {
468 image->has_module_cctor = TRUE;
469 image->checked_module_cctor = TRUE;
475 image->has_module_cctor = FALSE;
476 image->checked_module_cctor = TRUE;
480 load_modules (MonoImage *image)
487 t = &image->tables [MONO_TABLE_MODULEREF];
488 image->modules = g_new0 (MonoImage *, t->rows);
489 image->modules_loaded = g_new0 (gboolean, t->rows);
490 image->module_count = t->rows;
494 * mono_image_load_module:
496 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
497 * it cannot be loaded.
500 mono_image_load_module (MonoImage *image, int idx)
503 MonoTableInfo *file_table;
506 gboolean refonly = image->ref_only;
507 GList *list_iter, *valid_modules = NULL;
508 MonoImageOpenStatus status;
510 g_assert (idx <= image->module_count);
511 if (image->modules_loaded [idx - 1])
512 return image->modules [idx - 1];
514 file_table = &image->tables [MONO_TABLE_FILE];
515 for (i = 0; i < file_table->rows; i++) {
516 guint32 cols [MONO_FILE_SIZE];
517 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
518 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
520 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
523 t = &image->tables [MONO_TABLE_MODULEREF];
524 base_dir = g_path_get_dirname (image->name);
529 guint32 cols [MONO_MODULEREF_SIZE];
530 /* if there is no file table, we try to load the module... */
531 int valid = file_table->rows == 0;
533 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
534 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
535 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
536 /* be safe with string dups, but we could just compare string indexes */
537 if (strcmp (list_iter->data, name) == 0) {
543 module_ref = g_build_filename (base_dir, name, NULL);
544 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
545 if (image->modules [idx - 1]) {
546 mono_image_addref (image->modules [idx - 1]);
547 image->modules [idx - 1]->assembly = image->assembly;
548 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
554 image->modules_loaded [idx - 1] = TRUE;
557 g_list_free (valid_modules);
559 return image->modules [idx - 1];
563 class_key_extract (gpointer value)
565 MonoClass *class = value;
567 return GUINT_TO_POINTER (class->type_token);
571 class_next_value (gpointer value)
573 MonoClass *class = value;
575 return (gpointer*)&class->next_class_cache;
579 mono_image_init (MonoImage *image)
581 image->mempool = mono_mempool_new_size (512);
582 image->method_cache = g_hash_table_new (NULL, NULL);
583 mono_internal_hash_table_init (&image->class_cache,
587 image->field_cache = g_hash_table_new (NULL, NULL);
589 image->delegate_begin_invoke_cache =
590 g_hash_table_new ((GHashFunc)mono_signature_hash,
591 (GCompareFunc)mono_metadata_signature_equal);
592 image->delegate_end_invoke_cache =
593 g_hash_table_new ((GHashFunc)mono_signature_hash,
594 (GCompareFunc)mono_metadata_signature_equal);
595 image->delegate_invoke_cache =
596 g_hash_table_new ((GHashFunc)mono_signature_hash,
597 (GCompareFunc)mono_metadata_signature_equal);
598 image->runtime_invoke_cache =
599 g_hash_table_new ((GHashFunc)mono_signature_hash,
600 (GCompareFunc)mono_metadata_signature_equal);
602 image->runtime_invoke_direct_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
603 image->managed_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
604 image->native_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
605 image->remoting_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
606 image->cominterop_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
607 image->cominterop_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
608 image->synchronized_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
609 image->unbox_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
611 image->ldfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
612 image->ldflda_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
613 image->ldfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
614 image->stfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
615 image->stfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
616 image->isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
617 image->castclass_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
618 image->proxy_isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
620 image->typespec_cache = g_hash_table_new (NULL, NULL);
621 image->memberref_signatures = g_hash_table_new (NULL, NULL);
622 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
623 image->method_signatures = g_hash_table_new (NULL, NULL);
626 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
627 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
628 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
629 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
630 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
639 * Returns < 0 to indicate an error.
642 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
644 MonoDotNetHeader64 header64;
646 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
649 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
651 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
654 /* endian swap the fields common between PE and PE+ */
655 SWAP32 (header->coff.coff_time);
656 SWAP32 (header->coff.coff_symptr);
657 SWAP32 (header->coff.coff_symcount);
658 SWAP16 (header->coff.coff_machine);
659 SWAP16 (header->coff.coff_sections);
660 SWAP16 (header->coff.coff_opt_header_size);
661 SWAP16 (header->coff.coff_attributes);
663 SWAP32 (header->pe.pe_code_size);
664 SWAP32 (header->pe.pe_uninit_data_size);
665 SWAP32 (header->pe.pe_rva_entry_point);
666 SWAP32 (header->pe.pe_rva_code_base);
667 SWAP32 (header->pe.pe_rva_data_base);
668 SWAP16 (header->pe.pe_magic);
670 /* now we are ready for the basic tests */
672 if (header->pe.pe_magic == 0x10B) {
673 offset += sizeof (MonoDotNetHeader);
674 SWAP32 (header->pe.pe_data_size);
675 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
678 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
679 SWAP32 (header->nt.pe_stack_reserve);
680 SWAP32 (header->nt.pe_stack_commit);
681 SWAP32 (header->nt.pe_heap_reserve);
682 SWAP32 (header->nt.pe_heap_commit);
683 } else if (header->pe.pe_magic == 0x20B) {
684 /* PE32+ file format */
685 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
687 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
688 offset += sizeof (MonoDotNetHeader64);
689 /* copy the fields already swapped. the last field, pe_data_size, is missing */
690 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
691 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
692 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
694 SWAP64 (header64.nt.pe_image_base);
695 header->nt.pe_image_base = header64.nt.pe_image_base;
696 SWAP64 (header64.nt.pe_stack_reserve);
697 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
698 SWAP64 (header64.nt.pe_stack_commit);
699 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
700 SWAP64 (header64.nt.pe_heap_reserve);
701 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
702 SWAP64 (header64.nt.pe_heap_commit);
703 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
705 header->nt.pe_section_align = header64.nt.pe_section_align;
706 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
707 header->nt.pe_os_major = header64.nt.pe_os_major;
708 header->nt.pe_os_minor = header64.nt.pe_os_minor;
709 header->nt.pe_user_major = header64.nt.pe_user_major;
710 header->nt.pe_user_minor = header64.nt.pe_user_minor;
711 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
712 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
713 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
714 header->nt.pe_image_size = header64.nt.pe_image_size;
715 header->nt.pe_header_size = header64.nt.pe_header_size;
716 header->nt.pe_checksum = header64.nt.pe_checksum;
717 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
718 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
719 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
720 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
722 /* copy the datadir */
723 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
728 /* MonoPEHeaderNT: not used yet */
729 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
730 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
731 SWAP16 (header->nt.pe_os_major); /* must be 4 */
732 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
733 SWAP16 (header->nt.pe_user_major);
734 SWAP16 (header->nt.pe_user_minor);
735 SWAP16 (header->nt.pe_subsys_major);
736 SWAP16 (header->nt.pe_subsys_minor);
737 SWAP32 (header->nt.pe_reserved_1);
738 SWAP32 (header->nt.pe_image_size);
739 SWAP32 (header->nt.pe_header_size);
740 SWAP32 (header->nt.pe_checksum);
741 SWAP16 (header->nt.pe_subsys_required);
742 SWAP16 (header->nt.pe_dll_flags);
743 SWAP32 (header->nt.pe_loader_flags);
744 SWAP32 (header->nt.pe_data_dir_count);
746 /* MonoDotNetHeader: mostly unused */
747 SWAPPDE (header->datadir.pe_export_table);
748 SWAPPDE (header->datadir.pe_import_table);
749 SWAPPDE (header->datadir.pe_resource_table);
750 SWAPPDE (header->datadir.pe_exception_table);
751 SWAPPDE (header->datadir.pe_certificate_table);
752 SWAPPDE (header->datadir.pe_reloc_table);
753 SWAPPDE (header->datadir.pe_debug);
754 SWAPPDE (header->datadir.pe_copyright);
755 SWAPPDE (header->datadir.pe_global_ptr);
756 SWAPPDE (header->datadir.pe_tls_table);
757 SWAPPDE (header->datadir.pe_load_config_table);
758 SWAPPDE (header->datadir.pe_bound_import);
759 SWAPPDE (header->datadir.pe_iat);
760 SWAPPDE (header->datadir.pe_delay_import_desc);
761 SWAPPDE (header->datadir.pe_cli_header);
762 SWAPPDE (header->datadir.pe_reserved);
768 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
769 gboolean care_about_cli)
771 MonoCLIImageInfo *iinfo;
772 MonoDotNetHeader *header;
773 MonoMSDOSHeader msdos;
776 mono_profiler_module_event (image, MONO_PROFILE_START_LOAD);
778 mono_image_init (image);
780 iinfo = image->image_info;
781 header = &iinfo->cli_header;
784 *status = MONO_IMAGE_IMAGE_INVALID;
786 if (offset + sizeof (msdos) > image->raw_data_len)
788 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
790 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
793 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
795 offset = msdos.pe_offset;
797 offset = do_load_header (image, header, offset);
802 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
804 if (header->coff.coff_machine != 0x14c)
810 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
811 * which produces binaries with 7.0. From Sergey:
813 * The reason is that MSVC7 uses traditional compile/link
814 * sequence for CIL executables, and VS.NET (and Framework
815 * SDK) includes linker version 7, that puts 7.0 in this
816 * field. That's why it's currently not possible to load VC
817 * binaries with Mono. This field is pretty much meaningless
818 * anyway (what linker?).
820 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
825 * FIXME: byte swap all addresses here for header.
828 if (!load_section_tables (image, iinfo, offset))
831 if (care_about_cli == FALSE) {
835 /* Load the CLI header */
836 if (!load_cli_header (image, iinfo))
839 if (!load_metadata (image, iinfo))
842 /* modules don't have an assembly table row */
843 if (image->tables [MONO_TABLE_ASSEMBLY].rows)
844 image->assembly_name = mono_metadata_string_heap (image,
845 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
846 0, MONO_ASSEMBLY_NAME));
848 image->module_name = mono_metadata_string_heap (image,
849 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
850 0, MONO_MODULE_NAME));
852 load_modules (image);
855 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
857 *status = MONO_IMAGE_OK;
862 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
863 mono_image_close (image);
868 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
869 gboolean care_about_cli, gboolean refonly)
871 MonoCLIImageInfo *iinfo;
874 struct stat stat_buf;
876 if ((filed = fopen (fname, "rb")) == NULL){
877 if (IS_PORTABILITY_SET) {
878 gchar *ffname = mono_portability_find_file (fname, FALSE);
880 filed = fopen (ffname, "rb");
887 *status = MONO_IMAGE_ERROR_ERRNO;
892 if (fstat (fileno (filed), &stat_buf)) {
895 *status = MONO_IMAGE_ERROR_ERRNO;
898 image = g_new0 (MonoImage, 1);
899 image->raw_buffer_used = TRUE;
900 image->raw_data_len = stat_buf.st_size;
901 image->raw_data = mono_raw_buffer_load (fileno (filed), FALSE, 0, stat_buf.st_size);
902 iinfo = g_new0 (MonoCLIImageInfo, 1);
903 image->image_info = iinfo;
904 image->name = mono_path_resolve_symlinks (fname);
905 image->ref_only = refonly;
906 image->ref_count = 1;
910 return do_mono_image_load (image, status, care_about_cli);
914 mono_image_loaded_full (const char *name, gboolean refonly)
917 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
920 res = g_hash_table_lookup (loaded_images, name);
921 mono_images_unlock ();
927 * @name: name of the image to load
929 * This routine ensures that the given image is loaded.
931 * Returns: the loaded MonoImage, or NULL on failure.
934 mono_image_loaded (const char *name)
936 return mono_image_loaded_full (name, FALSE);
945 find_by_guid (gpointer key, gpointer val, gpointer user_data)
947 GuidData *data = user_data;
953 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
958 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
961 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
966 g_hash_table_foreach (loaded_images, find_by_guid, &data);
967 mono_images_unlock ();
972 mono_image_loaded_by_guid (const char *guid)
974 return mono_image_loaded_by_guid_full (guid, FALSE);
978 register_image (MonoImage *image)
981 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
984 image2 = g_hash_table_lookup (loaded_images, image->name);
987 /* Somebody else beat us to it */
988 mono_image_addref (image2);
989 mono_images_unlock ();
990 mono_image_close (image);
993 g_hash_table_insert (loaded_images, image->name, image);
994 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
995 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
996 mono_images_unlock ();
1002 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1004 MonoCLIImageInfo *iinfo;
1008 if (!data || !data_len) {
1010 *status = MONO_IMAGE_IMAGE_INVALID;
1015 datac = g_try_malloc (data_len);
1018 *status = MONO_IMAGE_ERROR_ERRNO;
1021 memcpy (datac, data, data_len);
1024 image = g_new0 (MonoImage, 1);
1025 image->raw_data = datac;
1026 image->raw_data_len = data_len;
1027 image->raw_data_allocated = need_copy;
1028 image->name = g_strdup_printf ("data-%p", datac);
1029 iinfo = g_new0 (MonoCLIImageInfo, 1);
1030 image->image_info = iinfo;
1031 image->ref_only = refonly;
1033 image = do_mono_image_load (image, status, TRUE);
1037 return register_image (image);
1041 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1043 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1047 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1050 GHashTable *loaded_images;
1053 g_return_val_if_fail (fname != NULL, NULL);
1055 absfname = mono_path_canonicalize (fname);
1058 * The easiest solution would be to do all the loading inside the mutex,
1059 * but that would lead to scalability problems. So we let the loading
1060 * happen outside the mutex, and if multiple threads happen to load
1061 * the same image, we discard all but the first copy.
1063 mono_images_lock ();
1064 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1065 image = g_hash_table_lookup (loaded_images, absfname);
1069 mono_image_addref (image);
1070 mono_images_unlock ();
1073 mono_images_unlock ();
1075 image = do_mono_image_open (fname, status, TRUE, refonly);
1079 return register_image (image);
1084 * @fname: filename that points to the module we want to open
1085 * @status: An error condition is returned in this field
1087 * Returns: An open image of type %MonoImage or NULL on error.
1088 * The caller holds a temporary reference to the returned image which should be cleared
1089 * when no longer needed by calling mono_image_close ().
1090 * if NULL, then check the value of @status for details on the error
1093 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1095 return mono_image_open_full (fname, status, FALSE);
1099 * mono_pe_file_open:
1100 * @fname: filename that points to the module we want to open
1101 * @status: An error condition is returned in this field
1103 * Returns: An open image of type %MonoImage or NULL on error. if
1104 * NULL, then check the value of @status for details on the error.
1105 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1106 * It's just a PE file loader, used for FileVersionInfo. It also does
1107 * not use the image cache.
1110 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1112 g_return_val_if_fail (fname != NULL, NULL);
1114 return(do_mono_image_open (fname, status, FALSE, FALSE));
1118 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1120 g_hash_table_destroy ((GHashTable*)val);
1125 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1127 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1132 free_blob_cache_entry (gpointer key, gpointer val, gpointer user_data)
1138 free_remoting_wrappers (gpointer key, gpointer val, gpointer user_data)
1144 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1146 g_slist_free ((GSList*)val);
1150 * mono_image_addref:
1151 * @image: The image file we wish to add a reference to
1153 * Increases the reference count of an image.
1156 mono_image_addref (MonoImage *image)
1158 InterlockedIncrement (&image->ref_count);
1162 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1164 stream->alloc_size = stream->index = stream->offset = 0;
1165 g_free (stream->data);
1166 stream->data = NULL;
1168 g_hash_table_destroy (stream->hash);
1169 stream->hash = NULL;
1175 * @image: The image file we wish to close
1177 * Closes an image file, deallocates all memory consumed and
1178 * unmaps all possible sections of the file
1181 mono_image_close (MonoImage *image)
1184 GHashTable *loaded_images;
1187 g_return_if_fail (image != NULL);
1189 if (InterlockedDecrement (&image->ref_count) > 0)
1192 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1194 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1196 mono_metadata_clean_for_image (image);
1199 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1200 * assemblies, so we can't release these references in mono_assembly_close () since the
1201 * MonoImage might outlive its associated MonoAssembly.
1203 if (image->references) {
1206 for (i = 0; image->references [i]; i++) {
1207 if (image->references [i])
1208 mono_assembly_close (image->references [i]);
1211 g_free (image->references);
1212 image->references = NULL;
1215 mono_images_lock ();
1216 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1217 image2 = g_hash_table_lookup (loaded_images, image->name);
1218 if (image == image2) {
1219 /* This is not true if we are called from mono_image_open () */
1220 g_hash_table_remove (loaded_images, image->name);
1222 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1223 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1225 mono_images_unlock ();
1227 if (image->raw_buffer_used) {
1228 if (image->raw_data != NULL)
1229 mono_raw_buffer_free (image->raw_data);
1232 if (image->raw_data_allocated) {
1233 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1234 MonoCLIImageInfo *ii = image->image_info;
1236 if ((image->raw_metadata > image->raw_data) &&
1237 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1238 image->raw_metadata = NULL;
1240 for (i = 0; i < ii->cli_section_count; i++)
1241 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1242 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1243 ii->cli_sections [i] = NULL;
1245 g_free (image->raw_data);
1248 if (debug_assembly_unload) {
1249 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1251 g_free (image->name);
1252 g_free (image->guid);
1253 g_free (image->version);
1254 g_free (image->files);
1257 g_hash_table_destroy (image->method_cache);
1258 mono_internal_hash_table_destroy (&image->class_cache);
1259 g_hash_table_destroy (image->field_cache);
1260 if (image->array_cache) {
1261 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1262 g_hash_table_destroy (image->array_cache);
1264 if (image->ptr_cache)
1265 g_hash_table_destroy (image->ptr_cache);
1266 if (image->name_cache) {
1267 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1268 g_hash_table_destroy (image->name_cache);
1270 g_hash_table_destroy (image->native_wrapper_cache);
1271 g_hash_table_destroy (image->managed_wrapper_cache);
1272 g_hash_table_destroy (image->delegate_begin_invoke_cache);
1273 g_hash_table_destroy (image->delegate_end_invoke_cache);
1274 g_hash_table_destroy (image->delegate_invoke_cache);
1275 if (image->delegate_abstract_invoke_cache)
1276 g_hash_table_destroy (image->delegate_abstract_invoke_cache);
1277 g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
1278 g_hash_table_destroy (image->remoting_invoke_cache);
1279 g_hash_table_destroy (image->runtime_invoke_cache);
1280 g_hash_table_destroy (image->runtime_invoke_direct_cache);
1281 g_hash_table_destroy (image->synchronized_cache);
1282 g_hash_table_destroy (image->unbox_wrapper_cache);
1283 g_hash_table_destroy (image->cominterop_invoke_cache);
1284 g_hash_table_destroy (image->cominterop_wrapper_cache);
1285 g_hash_table_destroy (image->typespec_cache);
1286 g_hash_table_destroy (image->ldfld_wrapper_cache);
1287 g_hash_table_destroy (image->ldflda_wrapper_cache);
1288 g_hash_table_destroy (image->ldfld_remote_wrapper_cache);
1289 g_hash_table_destroy (image->stfld_wrapper_cache);
1290 g_hash_table_destroy (image->stfld_remote_wrapper_cache);
1291 g_hash_table_destroy (image->isinst_cache);
1292 g_hash_table_destroy (image->castclass_cache);
1293 g_hash_table_destroy (image->proxy_isinst_cache);
1295 /* The ownership of signatures is not well defined */
1296 //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
1297 g_hash_table_destroy (image->memberref_signatures);
1298 //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
1299 g_hash_table_destroy (image->helper_signatures);
1300 g_hash_table_destroy (image->method_signatures);
1302 if (image->interface_bitset) {
1303 mono_unload_interface_ids (image->interface_bitset);
1304 mono_bitset_free (image->interface_bitset);
1306 if (image->image_info){
1307 MonoCLIImageInfo *ii = image->image_info;
1309 if (ii->cli_section_tables)
1310 g_free (ii->cli_section_tables);
1311 if (ii->cli_sections)
1312 g_free (ii->cli_sections);
1313 g_free (image->image_info);
1316 for (i = 0; i < image->module_count; ++i) {
1317 if (image->modules [i])
1318 mono_image_close (image->modules [i]);
1321 g_free (image->modules);
1322 if (image->modules_loaded)
1323 g_free (image->modules_loaded);
1324 if (image->references)
1325 g_free (image->references);
1326 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1327 if (!image->dynamic) {
1328 if (debug_assembly_unload)
1329 mono_mempool_invalidate (image->mempool);
1331 mono_mempool_destroy (image->mempool);
1335 /* Dynamic images are GC_MALLOCed */
1336 struct _MonoDynamicImage *di = (struct _MonoDynamicImage*)image;
1338 g_free ((char*)image->module_name);
1340 g_hash_table_destroy (di->typespec);
1342 g_hash_table_destroy (di->typeref);
1344 g_hash_table_destroy (di->handleref);
1346 mono_g_hash_table_destroy (di->tokens);
1347 if (di->blob_cache) {
1348 g_hash_table_foreach (di->blob_cache, free_blob_cache_entry, NULL);
1349 g_hash_table_destroy (di->blob_cache);
1351 g_list_free (di->array_methods);
1353 g_ptr_array_free (di->gen_params, TRUE);
1354 if (di->token_fixups)
1355 mono_g_hash_table_destroy (di->token_fixups);
1356 if (di->method_to_table_idx)
1357 g_hash_table_destroy (di->method_to_table_idx);
1358 if (di->field_to_table_idx)
1359 g_hash_table_destroy (di->field_to_table_idx);
1360 if (di->method_aux_hash)
1361 g_hash_table_destroy (di->method_aux_hash);
1362 g_free (di->strong_name);
1363 g_free (di->win32_res);
1364 /*g_print ("string heap destroy for image %p\n", di);*/
1365 mono_dynamic_stream_reset (&di->sheap);
1366 mono_dynamic_stream_reset (&di->code);
1367 mono_dynamic_stream_reset (&di->resources);
1368 mono_dynamic_stream_reset (&di->us);
1369 mono_dynamic_stream_reset (&di->blob);
1370 mono_dynamic_stream_reset (&di->tstream);
1371 mono_dynamic_stream_reset (&di->guid);
1372 for (i = 0; i < MONO_TABLE_NUM; ++i) {
1373 g_free (di->tables [i].values);
1375 mono_mempool_destroy (image->mempool);
1378 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1382 * mono_image_strerror:
1383 * @status: an code indicating the result from a recent operation
1385 * Returns: a string describing the error
1388 mono_image_strerror (MonoImageOpenStatus status)
1393 case MONO_IMAGE_ERROR_ERRNO:
1394 return strerror (errno);
1395 case MONO_IMAGE_IMAGE_INVALID:
1396 return "File does not contain a valid CIL image";
1397 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1398 return "An assembly was referenced, but could not be found";
1400 return "Internal error";
1404 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1405 guint32 lang_id, gunichar2 *name,
1406 MonoPEResourceDirEntry *entry,
1407 MonoPEResourceDir *root, guint32 level)
1409 gboolean is_string, is_dir;
1410 guint32 name_offset, dir_offset;
1412 /* Level 0 holds a directory entry for each type of resource
1413 * (identified by ID or name).
1415 * Level 1 holds a directory entry for each named resource
1416 * item, and each "anonymous" item of a particular type of
1419 * Level 2 holds a directory entry for each language pointing to
1422 name_offset = GUINT32_FROM_LE (entry->name_offset) & 0x7fffffff;
1423 dir_offset = GUINT32_FROM_LE (entry->dir_offset) & 0x7fffffff;
1425 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
1426 is_string = (GUINT32_FROM_LE (entry->name_offset) & 0x80000000) != 0;
1427 is_dir = (GUINT32_FROM_LE (entry->dir_offset) & 0x80000000) != 0;
1429 is_string = entry->name_is_string;
1430 is_dir = entry->is_dir;
1434 if((is_string==FALSE && name_offset!=res_id) ||
1435 (is_string==TRUE)) {
1438 } else if (level==1) {
1441 is_string==TRUE && name!=lookup (name_offset)) {
1445 } else if (level==2) {
1446 if ((is_string == FALSE &&
1447 name_offset != lang_id &&
1449 (is_string == TRUE)) {
1453 g_assert_not_reached ();
1457 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1458 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1461 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1463 for(i=0; i<entries; i++) {
1464 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1467 ret=mono_image_walk_resource_tree (info, res_id,
1478 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
1479 MonoPEResourceDataEntry *res;
1481 res = g_new0 (MonoPEResourceDataEntry, 1);
1483 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
1484 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
1485 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
1486 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
1493 * mono_image_lookup_resource:
1494 * @image: the image to look up the resource in
1495 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1496 * @lang_id: The language id.
1497 * @name: the resource name to lookup.
1499 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1500 * of the given resource. The caller should free it using g_free () when no longer
1504 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1506 MonoCLIImageInfo *info;
1507 MonoDotNetHeader *header;
1508 MonoPEDatadir *datadir;
1509 MonoPEDirEntry *rsrc;
1510 MonoPEResourceDir *resource_dir;
1511 MonoPEResourceDirEntry *res_entries;
1518 info=image->image_info;
1523 header=&info->cli_header;
1528 datadir=&header->datadir;
1533 rsrc=&datadir->pe_resource_table;
1538 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1539 if(resource_dir==NULL) {
1543 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
1544 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1546 for(i=0; i<entries; i++) {
1547 MonoPEResourceDirEntry *entry=&res_entries[i];
1550 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1551 name, entry, resource_dir,
1562 * mono_image_get_entry_point:
1563 * @image: the image where the entry point will be looked up.
1565 * Use this routine to determine the metadata token for method that
1566 * has been flagged as the entry point.
1568 * Returns: the token for the entry point method in the image
1571 mono_image_get_entry_point (MonoImage *image)
1573 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1577 * mono_image_get_resource:
1578 * @image: the image where the resource will be looked up.
1579 * @offset: The offset to add to the resource
1580 * @size: a pointer to an int where the size of the resource will be stored
1582 * This is a low-level routine that fetches a resource from the
1583 * metadata that starts at a given @offset. The @size parameter is
1584 * filled with the data field as encoded in the metadata.
1586 * Returns: the pointer to the resource whose offset is @offset.
1589 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1591 MonoCLIImageInfo *iinfo = image->image_info;
1592 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1595 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1598 data = mono_image_rva_map (image, ch->ch_resources.rva);
1603 *size = read32 (data);
1609 mono_image_load_file_for_image (MonoImage *image, int fileidx)
1611 char *base_dir, *name;
1613 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
1617 if (fileidx < 1 || fileidx > t->rows)
1620 mono_loader_lock ();
1621 if (image->files && image->files [fileidx - 1]) {
1622 mono_loader_unlock ();
1623 return image->files [fileidx - 1];
1627 image->files = g_new0 (MonoImage*, t->rows);
1629 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
1630 fname = mono_metadata_string_heap (image, fname_id);
1631 base_dir = g_path_get_dirname (image->name);
1632 name = g_build_filename (base_dir, fname, NULL);
1633 res = mono_image_open (name, NULL);
1636 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
1637 res->assembly = image->assembly;
1638 for (i = 0; i < res->module_count; ++i) {
1639 if (res->modules [i] && !res->modules [i]->assembly)
1640 res->modules [i]->assembly = image->assembly;
1643 image->files [fileidx - 1] = res;
1645 mono_loader_unlock ();
1652 * mono_image_get_strong_name:
1653 * @image: a MonoImage
1654 * @size: a guint32 pointer, or NULL.
1656 * If the image has a strong name, and @size is not NULL, the value
1657 * pointed to by size will have the size of the strong name.
1659 * Returns: NULL if the image does not have a strong name, or a
1660 * pointer to the public key.
1663 mono_image_get_strong_name (MonoImage *image, guint32 *size)
1665 MonoCLIImageInfo *iinfo = image->image_info;
1666 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1669 if (!de->size || !de->rva)
1671 data = mono_image_rva_map (image, de->rva);
1680 * mono_image_strong_name_position:
1681 * @image: a MonoImage
1682 * @size: a guint32 pointer, or NULL.
1684 * If the image has a strong name, and @size is not NULL, the value
1685 * pointed to by size will have the size of the strong name.
1687 * Returns: the position within the image file where the strong name
1691 mono_image_strong_name_position (MonoImage *image, guint32 *size)
1693 MonoCLIImageInfo *iinfo = image->image_info;
1694 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1695 const int top = iinfo->cli_section_count;
1696 MonoSectionTable *tables = iinfo->cli_section_tables;
1698 guint32 addr = de->rva;
1702 if (!de->size || !de->rva)
1704 for (i = 0; i < top; i++){
1705 if ((addr >= tables->st_virtual_address) &&
1706 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
1707 return tables->st_raw_data_ptr +
1708 (addr - tables->st_virtual_address);
1717 * mono_image_get_public_key:
1718 * @image: a MonoImage
1719 * @size: a guint32 pointer, or NULL.
1721 * This is used to obtain the public key in the @image.
1723 * If the image has a public key, and @size is not NULL, the value
1724 * pointed to by size will have the size of the public key.
1726 * Returns: NULL if the image does not have a public key, or a pointer
1727 * to the public key.
1730 mono_image_get_public_key (MonoImage *image, guint32 *size)
1735 if (image->dynamic) {
1737 *size = ((MonoDynamicImage*)image)->public_key_len;
1738 return ((MonoDynamicImage*)image)->public_key;
1740 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
1742 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
1745 pubkey = mono_metadata_blob_heap (image, tok);
1746 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
1753 * mono_image_get_name:
1754 * @name: a MonoImage
1756 * Returns: the name of the assembly.
1759 mono_image_get_name (MonoImage *image)
1761 return image->assembly_name;
1765 * mono_image_get_filename:
1766 * @image: a MonoImage
1768 * Used to get the filename that hold the actual MonoImage
1770 * Returns: the filename.
1773 mono_image_get_filename (MonoImage *image)
1779 mono_image_get_guid (MonoImage *image)
1784 const MonoTableInfo*
1785 mono_image_get_table_info (MonoImage *image, int table_id)
1787 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
1789 return &image->tables [table_id];
1793 mono_image_get_table_rows (MonoImage *image, int table_id)
1795 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
1797 return image->tables [table_id].rows;
1801 mono_table_info_get_rows (const MonoTableInfo *table)
1807 * mono_image_get_assembly:
1808 * @image: the MonoImage.
1810 * Use this routine to get the assembly that owns this image.
1812 * Returns: the assembly that holds this image.
1815 mono_image_get_assembly (MonoImage *image)
1817 return image->assembly;
1821 * mono_image_is_dynamic:
1822 * @image: the MonoImage
1824 * Determines if the given image was created dynamically through the
1825 * System.Reflection.Emit API
1827 * Returns: TRUE if the image was created dynamically, FALSE if not.
1830 mono_image_is_dynamic (MonoImage *image)
1832 return image->dynamic;
1836 * mono_image_has_authenticode_entry:
1837 * @image: the MonoImage
1839 * Use this routine to determine if the image has a Authenticode
1840 * Certificate Table.
1842 * Returns: TRUE if the image contains an authenticode entry in the PE
1846 mono_image_has_authenticode_entry (MonoImage *image)
1848 MonoCLIImageInfo *iinfo = image->image_info;
1849 MonoDotNetHeader *header = &iinfo->cli_header;
1850 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
1851 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
1852 return ((de->rva != 0) && (de->size > 8));