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"
26 #include <mono/io-layer/io-layer.h>
27 #include <mono/utils/mono-logger.h>
28 #include <mono/utils/mono-path.h>
29 #include <mono/utils/mono-io-portability.h>
30 #include <mono/metadata/class-internals.h>
31 #include <mono/metadata/assembly.h>
32 #include <sys/types.h>
38 #define INVALID_ADDRESS 0xffffffff
41 * Keeps track of the various assemblies loaded
43 static GHashTable *loaded_images_hash;
44 static GHashTable *loaded_images_refonly_hash;
46 static gboolean debug_assembly_unload = FALSE;
48 #define mono_images_lock() EnterCriticalSection (&images_mutex)
49 #define mono_images_unlock() LeaveCriticalSection (&images_mutex)
50 static CRITICAL_SECTION images_mutex;
53 mono_cli_rva_image_map (MonoCLIImageInfo *iinfo, guint32 addr)
55 const int top = iinfo->cli_section_count;
56 MonoSectionTable *tables = iinfo->cli_section_tables;
59 for (i = 0; i < top; i++){
60 if ((addr >= tables->st_virtual_address) &&
61 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
62 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
66 return INVALID_ADDRESS;
70 * mono_images_rva_map:
72 * @addr: relative virtual address (RVA)
74 * This is a low-level routine used by the runtime to map relative
75 * virtual address (RVA) into their location in memory.
77 * Returns: the address in memory for the given RVA, or NULL if the
78 * RVA is not valid for this image.
81 mono_image_rva_map (MonoImage *image, guint32 addr)
83 MonoCLIImageInfo *iinfo = image->image_info;
84 const int top = iinfo->cli_section_count;
85 MonoSectionTable *tables = iinfo->cli_section_tables;
88 for (i = 0; i < top; i++){
89 if ((addr >= tables->st_virtual_address) &&
90 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
91 if (!iinfo->cli_sections [i]) {
92 if (!mono_image_ensure_section_idx (image, i))
95 return (char*)iinfo->cli_sections [i] +
96 (addr - tables->st_virtual_address);
106 * Initialize the global variables used by this module.
109 mono_images_init (void)
111 InitializeCriticalSection (&images_mutex);
113 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
114 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
116 debug_assembly_unload = getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
120 * mono_images_cleanup:
122 * Free all resources used by this module.
125 mono_images_cleanup (void)
127 DeleteCriticalSection (&images_mutex);
129 g_hash_table_destroy (loaded_images_hash);
130 g_hash_table_destroy (loaded_images_refonly_hash);
134 * mono_image_ensure_section_idx:
135 * @image: The image we are operating on
136 * @section: section number that we will load/map into memory
138 * This routine makes sure that we have an in-memory copy of
139 * an image section (.text, .rsrc, .data).
141 * Returns: TRUE on success
144 mono_image_ensure_section_idx (MonoImage *image, int section)
146 MonoCLIImageInfo *iinfo = image->image_info;
147 MonoSectionTable *sect;
150 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
152 if (iinfo->cli_sections [section] != NULL)
155 sect = &iinfo->cli_section_tables [section];
157 writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
159 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
161 /* FIXME: we ignore the writable flag since we don't patch the binary */
162 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
167 * mono_image_ensure_section:
168 * @image: The image we are operating on
169 * @section: section name that we will load/map into memory
171 * This routine makes sure that we have an in-memory copy of
172 * an image section (.text, .rsrc, .data).
174 * Returns: TRUE on success
177 mono_image_ensure_section (MonoImage *image, const char *section)
179 MonoCLIImageInfo *ii = image->image_info;
182 for (i = 0; i < ii->cli_section_count; i++){
183 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
186 return mono_image_ensure_section_idx (image, i);
192 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
194 const int top = iinfo->cli_header.coff.coff_sections;
197 iinfo->cli_section_count = top;
198 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
199 iinfo->cli_sections = g_new0 (void *, top);
201 for (i = 0; i < top; i++){
202 MonoSectionTable *t = &iinfo->cli_section_tables [i];
204 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
206 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
207 offset += sizeof (MonoSectionTable);
209 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
210 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
211 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
212 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
213 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
214 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
215 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
216 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
217 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
218 t->st_flags = GUINT32_FROM_LE (t->st_flags);
220 /* consistency checks here */
227 load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
231 offset = mono_cli_rva_image_map (iinfo, iinfo->cli_header.datadir.pe_cli_header.rva);
232 if (offset == INVALID_ADDRESS)
235 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
237 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
239 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
240 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
241 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
242 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
243 SWAP32 (iinfo->cli_cli_header.ch_size);
244 SWAP32 (iinfo->cli_cli_header.ch_flags);
245 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
246 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
247 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
248 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
249 SWAPPDE (iinfo->cli_cli_header.ch_resources);
250 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
251 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
252 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
253 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
254 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
255 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
256 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
257 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
258 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
259 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
260 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
261 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
262 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
267 /* Catch new uses of the fields that are supposed to be zero */
269 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
270 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
271 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
272 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
273 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
274 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
275 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
276 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
277 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
280 * No need to scare people who are testing this, I am just
281 * labelling this as a LAMESPEC
283 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
291 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
293 guint32 offset, size;
299 offset = mono_cli_rva_image_map (iinfo, iinfo->cli_cli_header.ch_metadata.rva);
300 if (offset == INVALID_ADDRESS)
303 size = iinfo->cli_cli_header.ch_metadata.size;
305 if (offset + size > image->raw_data_len)
307 image->raw_metadata = image->raw_data + offset;
309 ptr = image->raw_metadata;
311 if (strncmp (ptr, "BSJB", 4) == 0){
312 guint32 version_string_len;
315 image->md_version_major = read16 (ptr);
317 image->md_version_minor = read16 (ptr);
320 version_string_len = read32 (ptr);
322 image->version = g_strndup (ptr, version_string_len);
323 ptr += version_string_len;
324 pad = ptr - image->raw_metadata;
326 ptr += 4 - (pad % 4);
330 /* skip over flags */
333 streams = read16 (ptr);
336 for (i = 0; i < streams; i++){
337 if (strncmp (ptr + 8, "#~", 3) == 0){
338 image->heap_tables.data = image->raw_metadata + read32 (ptr);
339 image->heap_tables.size = read32 (ptr + 4);
341 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
342 image->heap_strings.data = image->raw_metadata + read32 (ptr);
343 image->heap_strings.size = read32 (ptr + 4);
345 } else if (strncmp (ptr + 8, "#US", 4) == 0){
346 image->heap_us.data = image->raw_metadata + read32 (ptr);
347 image->heap_us.size = read32 (ptr + 4);
349 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
350 image->heap_blob.data = image->raw_metadata + read32 (ptr);
351 image->heap_blob.size = read32 (ptr + 4);
353 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
354 image->heap_guid.data = image->raw_metadata + read32 (ptr);
355 image->heap_guid.size = read32 (ptr + 4);
357 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
358 image->heap_tables.data = image->raw_metadata + read32 (ptr);
359 image->heap_tables.size = read32 (ptr + 4);
361 image->uncompressed_metadata = TRUE;
362 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);
364 g_message ("Unknown heap type: %s\n", ptr + 8);
365 ptr += 8 + strlen (ptr + 8) + 1;
367 pad = ptr - image->raw_metadata;
369 ptr += 4 - (pad % 4);
372 g_assert (image->heap_guid.data);
373 g_assert (image->heap_guid.size >= 16);
375 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
381 * Load representation of logical metadata tables, from the "#~" stream
384 load_tables (MonoImage *image)
386 const char *heap_tables = image->heap_tables.data;
388 guint64 valid_mask, sorted_mask;
389 int valid = 0, table;
392 heap_sizes = heap_tables [6];
393 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
394 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
395 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
397 valid_mask = read64 (heap_tables + 8);
398 sorted_mask = read64 (heap_tables + 16);
399 rows = (const guint32 *) (heap_tables + 24);
401 for (table = 0; table < 64; table++){
402 if ((valid_mask & ((guint64) 1 << table)) == 0){
403 if (table > MONO_TABLE_LAST)
405 image->tables [table].rows = 0;
408 if (table > MONO_TABLE_LAST) {
409 g_warning("bits in valid must be zero above 0x2d (II - 23.1.6)");
411 image->tables [table].rows = read32 (rows);
413 /*if ((sorted_mask & ((guint64) 1 << table)) == 0){
414 g_print ("table %s (0x%02x) is sorted\n", mono_meta_table_name (table), table);
420 image->tables_base = (heap_tables + 24) + (4 * valid);
422 /* They must be the same */
423 g_assert ((const void *) image->tables_base == (const void *) rows);
425 mono_metadata_compute_table_bases (image);
430 load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
432 if (!load_metadata_ptrs (image, iinfo))
435 return load_tables (image);
439 mono_image_check_for_module_cctor (MonoImage *image)
441 MonoTableInfo *t, *mt;
442 t = &image->tables [MONO_TABLE_TYPEDEF];
443 mt = &image->tables [MONO_TABLE_METHOD];
444 if (mono_get_runtime_info ()->framework_version [0] == '1') {
445 image->checked_module_cctor = TRUE;
448 if (image->dynamic) {
450 image->checked_module_cctor = TRUE;
454 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
455 const char *name = mono_metadata_string_heap (image, nameidx);
456 if (strcmp (name, "<Module>") == 0) {
457 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
460 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
462 last_method = mt->rows;
463 for (; first_method < last_method; first_method++) {
464 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
465 name = mono_metadata_string_heap (image, nameidx);
466 if (strcmp (name, ".cctor") == 0) {
467 image->has_module_cctor = TRUE;
468 image->checked_module_cctor = TRUE;
474 image->has_module_cctor = FALSE;
475 image->checked_module_cctor = TRUE;
479 load_modules (MonoImage *image)
486 t = &image->tables [MONO_TABLE_MODULEREF];
487 image->modules = g_new0 (MonoImage *, t->rows);
488 image->modules_loaded = g_new0 (gboolean, t->rows);
489 image->module_count = t->rows;
493 * mono_image_load_module:
495 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
496 * it cannot be loaded.
499 mono_image_load_module (MonoImage *image, int idx)
502 MonoTableInfo *file_table;
505 gboolean refonly = image->ref_only;
506 GList *list_iter, *valid_modules = NULL;
507 MonoImageOpenStatus status;
509 g_assert (idx <= image->module_count);
510 if (image->modules_loaded [idx - 1])
511 return image->modules [idx - 1];
513 file_table = &image->tables [MONO_TABLE_FILE];
514 for (i = 0; i < file_table->rows; i++) {
515 guint32 cols [MONO_FILE_SIZE];
516 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
517 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
519 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
522 t = &image->tables [MONO_TABLE_MODULEREF];
523 base_dir = g_path_get_dirname (image->name);
528 guint32 cols [MONO_MODULEREF_SIZE];
529 /* if there is no file table, we try to load the module... */
530 int valid = file_table->rows == 0;
532 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
533 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
534 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
535 /* be safe with string dups, but we could just compare string indexes */
536 if (strcmp (list_iter->data, name) == 0) {
542 module_ref = g_build_filename (base_dir, name, NULL);
543 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
544 if (image->modules [idx - 1]) {
545 mono_image_addref (image->modules [idx - 1]);
546 image->modules [idx - 1]->assembly = image->assembly;
547 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
553 image->modules_loaded [idx - 1] = TRUE;
556 g_list_free (valid_modules);
558 return image->modules [idx - 1];
562 class_key_extract (gpointer value)
564 MonoClass *class = value;
566 return GUINT_TO_POINTER (class->type_token);
570 class_next_value (gpointer value)
572 MonoClass *class = value;
574 return (gpointer*)&class->next_class_cache;
578 mono_image_init (MonoImage *image)
580 image->mempool = mono_mempool_new ();
581 image->method_cache = g_hash_table_new (NULL, NULL);
582 mono_internal_hash_table_init (&image->class_cache,
586 image->field_cache = g_hash_table_new (NULL, NULL);
588 image->delegate_begin_invoke_cache =
589 g_hash_table_new ((GHashFunc)mono_signature_hash,
590 (GCompareFunc)mono_metadata_signature_equal);
591 image->delegate_end_invoke_cache =
592 g_hash_table_new ((GHashFunc)mono_signature_hash,
593 (GCompareFunc)mono_metadata_signature_equal);
594 image->delegate_invoke_cache =
595 g_hash_table_new ((GHashFunc)mono_signature_hash,
596 (GCompareFunc)mono_metadata_signature_equal);
597 image->runtime_invoke_cache =
598 g_hash_table_new ((GHashFunc)mono_signature_hash,
599 (GCompareFunc)mono_metadata_signature_equal);
601 image->managed_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
602 image->native_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
603 image->remoting_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
604 image->cominterop_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
605 image->cominterop_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
606 image->synchronized_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
607 image->unbox_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
609 image->ldfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
610 image->ldflda_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
611 image->ldfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
612 image->stfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
613 image->stfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
614 image->isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
615 image->castclass_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
616 image->proxy_isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
618 image->typespec_cache = g_hash_table_new (NULL, NULL);
619 image->memberref_signatures = g_hash_table_new (NULL, NULL);
620 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
621 image->method_signatures = g_hash_table_new (NULL, NULL);
624 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
625 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
626 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
627 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
628 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
637 * Returns < 0 to indicate an error.
640 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
642 MonoDotNetHeader64 header64;
644 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
647 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
649 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
652 /* endian swap the fields common between PE and PE+ */
653 SWAP32 (header->coff.coff_time);
654 SWAP32 (header->coff.coff_symptr);
655 SWAP32 (header->coff.coff_symcount);
656 SWAP16 (header->coff.coff_machine);
657 SWAP16 (header->coff.coff_sections);
658 SWAP16 (header->coff.coff_opt_header_size);
659 SWAP16 (header->coff.coff_attributes);
661 SWAP32 (header->pe.pe_code_size);
662 SWAP32 (header->pe.pe_uninit_data_size);
663 SWAP32 (header->pe.pe_rva_entry_point);
664 SWAP32 (header->pe.pe_rva_code_base);
665 SWAP32 (header->pe.pe_rva_data_base);
666 SWAP16 (header->pe.pe_magic);
668 /* now we are ready for the basic tests */
670 if (header->pe.pe_magic == 0x10B) {
671 offset += sizeof (MonoDotNetHeader);
672 SWAP32 (header->pe.pe_data_size);
673 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
676 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
677 SWAP32 (header->nt.pe_stack_reserve);
678 SWAP32 (header->nt.pe_stack_commit);
679 SWAP32 (header->nt.pe_heap_reserve);
680 SWAP32 (header->nt.pe_heap_commit);
681 } else if (header->pe.pe_magic == 0x20B) {
682 /* PE32+ file format */
683 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
685 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
686 offset += sizeof (MonoDotNetHeader64);
687 /* copy the fields already swapped. the last field, pe_data_size, is missing */
688 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
689 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
690 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
692 SWAP64 (header64.nt.pe_image_base);
693 header->nt.pe_image_base = header64.nt.pe_image_base;
694 SWAP64 (header64.nt.pe_stack_reserve);
695 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
696 SWAP64 (header64.nt.pe_stack_commit);
697 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
698 SWAP64 (header64.nt.pe_heap_reserve);
699 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
700 SWAP64 (header64.nt.pe_heap_commit);
701 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
703 header->nt.pe_section_align = header64.nt.pe_section_align;
704 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
705 header->nt.pe_os_major = header64.nt.pe_os_major;
706 header->nt.pe_os_minor = header64.nt.pe_os_minor;
707 header->nt.pe_user_major = header64.nt.pe_user_major;
708 header->nt.pe_user_minor = header64.nt.pe_user_minor;
709 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
710 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
711 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
712 header->nt.pe_image_size = header64.nt.pe_image_size;
713 header->nt.pe_header_size = header64.nt.pe_header_size;
714 header->nt.pe_checksum = header64.nt.pe_checksum;
715 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
716 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
717 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
718 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
720 /* copy the datadir */
721 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
726 /* MonoPEHeaderNT: not used yet */
727 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
728 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
729 SWAP16 (header->nt.pe_os_major); /* must be 4 */
730 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
731 SWAP16 (header->nt.pe_user_major);
732 SWAP16 (header->nt.pe_user_minor);
733 SWAP16 (header->nt.pe_subsys_major);
734 SWAP16 (header->nt.pe_subsys_minor);
735 SWAP32 (header->nt.pe_reserved_1);
736 SWAP32 (header->nt.pe_image_size);
737 SWAP32 (header->nt.pe_header_size);
738 SWAP32 (header->nt.pe_checksum);
739 SWAP16 (header->nt.pe_subsys_required);
740 SWAP16 (header->nt.pe_dll_flags);
741 SWAP32 (header->nt.pe_loader_flags);
742 SWAP32 (header->nt.pe_data_dir_count);
744 /* MonoDotNetHeader: mostly unused */
745 SWAPPDE (header->datadir.pe_export_table);
746 SWAPPDE (header->datadir.pe_import_table);
747 SWAPPDE (header->datadir.pe_resource_table);
748 SWAPPDE (header->datadir.pe_exception_table);
749 SWAPPDE (header->datadir.pe_certificate_table);
750 SWAPPDE (header->datadir.pe_reloc_table);
751 SWAPPDE (header->datadir.pe_debug);
752 SWAPPDE (header->datadir.pe_copyright);
753 SWAPPDE (header->datadir.pe_global_ptr);
754 SWAPPDE (header->datadir.pe_tls_table);
755 SWAPPDE (header->datadir.pe_load_config_table);
756 SWAPPDE (header->datadir.pe_bound_import);
757 SWAPPDE (header->datadir.pe_iat);
758 SWAPPDE (header->datadir.pe_delay_import_desc);
759 SWAPPDE (header->datadir.pe_cli_header);
760 SWAPPDE (header->datadir.pe_reserved);
766 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
767 gboolean care_about_cli)
769 MonoCLIImageInfo *iinfo;
770 MonoDotNetHeader *header;
771 MonoMSDOSHeader msdos;
774 mono_image_init (image);
776 iinfo = image->image_info;
777 header = &iinfo->cli_header;
780 *status = MONO_IMAGE_IMAGE_INVALID;
782 if (offset + sizeof (msdos) > image->raw_data_len)
784 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
786 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
789 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
791 offset = msdos.pe_offset;
793 offset = do_load_header (image, header, offset);
798 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
800 if (header->coff.coff_machine != 0x14c)
806 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
807 * which produces binaries with 7.0. From Sergey:
809 * The reason is that MSVC7 uses traditional compile/link
810 * sequence for CIL executables, and VS.NET (and Framework
811 * SDK) includes linker version 7, that puts 7.0 in this
812 * field. That's why it's currently not possible to load VC
813 * binaries with Mono. This field is pretty much meaningless
814 * anyway (what linker?).
816 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
821 * FIXME: byte swap all addresses here for header.
824 if (!load_section_tables (image, iinfo, offset))
827 if (care_about_cli == FALSE) {
831 /* Load the CLI header */
832 if (!load_cli_header (image, iinfo))
835 if (!load_metadata (image, iinfo))
838 /* modules don't have an assembly table row */
839 if (image->tables [MONO_TABLE_ASSEMBLY].rows)
840 image->assembly_name = mono_metadata_string_heap (image,
841 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
842 0, MONO_ASSEMBLY_NAME));
844 image->module_name = mono_metadata_string_heap (image,
845 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
846 0, MONO_MODULE_NAME));
848 load_modules (image);
852 *status = MONO_IMAGE_OK;
857 mono_image_close (image);
862 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
863 gboolean care_about_cli, gboolean refonly)
865 MonoCLIImageInfo *iinfo;
868 struct stat stat_buf;
870 if ((filed = fopen (fname, "rb")) == NULL){
871 if (IS_PORTABILITY_SET) {
872 gchar *ffname = mono_portability_find_file (fname, FALSE);
874 filed = fopen (ffname, "rb");
881 *status = MONO_IMAGE_ERROR_ERRNO;
886 if (fstat (fileno (filed), &stat_buf)) {
889 *status = MONO_IMAGE_ERROR_ERRNO;
892 image = g_new0 (MonoImage, 1);
893 image->raw_buffer_used = TRUE;
894 image->raw_data_len = stat_buf.st_size;
895 image->raw_data = mono_raw_buffer_load (fileno (filed), FALSE, 0, stat_buf.st_size);
896 iinfo = g_new0 (MonoCLIImageInfo, 1);
897 image->image_info = iinfo;
898 image->name = mono_path_resolve_symlinks (fname);
899 image->ref_only = refonly;
900 image->ref_count = 1;
904 return do_mono_image_load (image, status, care_about_cli);
908 mono_image_loaded_full (const char *name, gboolean refonly)
911 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
914 res = g_hash_table_lookup (loaded_images, name);
915 mono_images_unlock ();
921 * @name: name of the image to load
923 * This routine ensures that the given image is loaded.
925 * Returns: the loaded MonoImage, or NULL on failure.
928 mono_image_loaded (const char *name)
930 return mono_image_loaded_full (name, FALSE);
939 find_by_guid (gpointer key, gpointer val, gpointer user_data)
941 GuidData *data = user_data;
947 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
952 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
955 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
960 g_hash_table_foreach (loaded_images, find_by_guid, &data);
961 mono_images_unlock ();
966 mono_image_loaded_by_guid (const char *guid)
968 return mono_image_loaded_by_guid_full (guid, FALSE);
972 register_image (MonoImage *image)
975 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
978 image2 = g_hash_table_lookup (loaded_images, image->name);
981 /* Somebody else beat us to it */
982 mono_image_addref (image2);
983 mono_images_unlock ();
984 mono_image_close (image);
987 g_hash_table_insert (loaded_images, image->name, image);
988 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
989 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
990 mono_images_unlock ();
996 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
998 MonoCLIImageInfo *iinfo;
1002 if (!data || !data_len) {
1004 *status = MONO_IMAGE_IMAGE_INVALID;
1009 datac = g_try_malloc (data_len);
1012 *status = MONO_IMAGE_ERROR_ERRNO;
1015 memcpy (datac, data, data_len);
1018 image = g_new0 (MonoImage, 1);
1019 image->raw_data = datac;
1020 image->raw_data_len = data_len;
1021 image->raw_data_allocated = need_copy;
1022 image->name = g_strdup_printf ("data-%p", datac);
1023 iinfo = g_new0 (MonoCLIImageInfo, 1);
1024 image->image_info = iinfo;
1025 image->ref_only = refonly;
1027 image = do_mono_image_load (image, status, TRUE);
1031 return register_image (image);
1035 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1037 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1041 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1044 GHashTable *loaded_images;
1047 g_return_val_if_fail (fname != NULL, NULL);
1049 absfname = mono_path_canonicalize (fname);
1052 * The easiest solution would be to do all the loading inside the mutex,
1053 * but that would lead to scalability problems. So we let the loading
1054 * happen outside the mutex, and if multiple threads happen to load
1055 * the same image, we discard all but the first copy.
1057 mono_images_lock ();
1058 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1059 image = g_hash_table_lookup (loaded_images, absfname);
1063 mono_image_addref (image);
1064 mono_images_unlock ();
1067 mono_images_unlock ();
1069 image = do_mono_image_open (fname, status, TRUE, refonly);
1073 return register_image (image);
1078 * @fname: filename that points to the module we want to open
1079 * @status: An error condition is returned in this field
1081 * Returns: An open image of type %MonoImage or NULL on error.
1082 * The caller holds a temporary reference to the returned image which should be cleared
1083 * when no longer needed by calling mono_image_close ().
1084 * if NULL, then check the value of @status for details on the error
1087 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1089 return mono_image_open_full (fname, status, FALSE);
1093 * mono_pe_file_open:
1094 * @fname: filename that points to the module we want to open
1095 * @status: An error condition is returned in this field
1097 * Returns: An open image of type %MonoImage or NULL on error. if
1098 * NULL, then check the value of @status for details on the error.
1099 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1100 * It's just a PE file loader, used for FileVersionInfo. It also does
1101 * not use the image cache.
1104 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1106 g_return_val_if_fail (fname != NULL, NULL);
1108 return(do_mono_image_open (fname, status, FALSE, FALSE));
1112 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1114 g_hash_table_destroy ((GHashTable*)val);
1119 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1121 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1126 free_blob_cache_entry (gpointer key, gpointer val, gpointer user_data)
1132 free_remoting_wrappers (gpointer key, gpointer val, gpointer user_data)
1138 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1140 g_slist_free ((GSList*)val);
1144 * mono_image_addref:
1145 * @image: The image file we wish to add a reference to
1147 * Increases the reference count of an image.
1150 mono_image_addref (MonoImage *image)
1152 InterlockedIncrement (&image->ref_count);
1156 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1158 stream->alloc_size = stream->index = stream->offset = 0;
1159 g_free (stream->data);
1160 stream->data = NULL;
1162 g_hash_table_destroy (stream->hash);
1163 stream->hash = NULL;
1169 * @image: The image file we wish to close
1171 * Closes an image file, deallocates all memory consumed and
1172 * unmaps all possible sections of the file
1175 mono_image_close (MonoImage *image)
1178 GHashTable *loaded_images;
1181 g_return_if_fail (image != NULL);
1183 if (InterlockedDecrement (&image->ref_count) > 0)
1186 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1188 mono_metadata_clean_for_image (image);
1191 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1192 * assemblies, so we can't release these references in mono_assembly_close () since the
1193 * MonoImage might outlive its associated MonoAssembly.
1195 if (image->references) {
1198 for (i = 0; image->references [i]; i++) {
1199 if (image->references [i])
1200 mono_assembly_close (image->references [i]);
1203 g_free (image->references);
1204 image->references = NULL;
1207 mono_images_lock ();
1208 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1209 image2 = g_hash_table_lookup (loaded_images, image->name);
1210 if (image == image2) {
1211 /* This is not true if we are called from mono_image_open () */
1212 g_hash_table_remove (loaded_images, image->name);
1214 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1215 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1217 mono_images_unlock ();
1219 if (image->raw_buffer_used) {
1220 if (image->raw_data != NULL)
1221 mono_raw_buffer_free (image->raw_data);
1224 if (image->raw_data_allocated) {
1225 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1226 MonoCLIImageInfo *ii = image->image_info;
1228 if ((image->raw_metadata > image->raw_data) &&
1229 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1230 image->raw_metadata = NULL;
1232 for (i = 0; i < ii->cli_section_count; i++)
1233 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1234 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1235 ii->cli_sections [i] = NULL;
1237 g_free (image->raw_data);
1240 if (debug_assembly_unload) {
1241 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1243 g_free (image->name);
1244 g_free (image->guid);
1245 g_free (image->version);
1246 g_free (image->files);
1249 g_hash_table_destroy (image->method_cache);
1250 mono_internal_hash_table_destroy (&image->class_cache);
1251 g_hash_table_destroy (image->field_cache);
1252 if (image->array_cache) {
1253 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1254 g_hash_table_destroy (image->array_cache);
1256 if (image->ptr_cache)
1257 g_hash_table_destroy (image->ptr_cache);
1258 if (image->name_cache) {
1259 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1260 g_hash_table_destroy (image->name_cache);
1262 g_hash_table_destroy (image->native_wrapper_cache);
1263 g_hash_table_destroy (image->managed_wrapper_cache);
1264 g_hash_table_destroy (image->delegate_begin_invoke_cache);
1265 g_hash_table_destroy (image->delegate_end_invoke_cache);
1266 g_hash_table_destroy (image->delegate_invoke_cache);
1267 g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
1268 g_hash_table_destroy (image->remoting_invoke_cache);
1269 g_hash_table_destroy (image->runtime_invoke_cache);
1270 g_hash_table_destroy (image->synchronized_cache);
1271 g_hash_table_destroy (image->unbox_wrapper_cache);
1272 g_hash_table_destroy (image->cominterop_invoke_cache);
1273 g_hash_table_destroy (image->cominterop_wrapper_cache);
1274 g_hash_table_destroy (image->typespec_cache);
1275 g_hash_table_destroy (image->ldfld_wrapper_cache);
1276 g_hash_table_destroy (image->ldflda_wrapper_cache);
1277 g_hash_table_destroy (image->ldfld_remote_wrapper_cache);
1278 g_hash_table_destroy (image->stfld_wrapper_cache);
1279 g_hash_table_destroy (image->stfld_remote_wrapper_cache);
1280 g_hash_table_destroy (image->isinst_cache);
1281 g_hash_table_destroy (image->castclass_cache);
1282 g_hash_table_destroy (image->proxy_isinst_cache);
1284 /* The ownership of signatures is not well defined */
1285 //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
1286 g_hash_table_destroy (image->memberref_signatures);
1287 //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
1288 g_hash_table_destroy (image->helper_signatures);
1289 g_hash_table_destroy (image->method_signatures);
1291 if (image->interface_bitset) {
1292 mono_unload_interface_ids (image->interface_bitset);
1293 mono_bitset_free (image->interface_bitset);
1295 if (image->image_info){
1296 MonoCLIImageInfo *ii = image->image_info;
1298 if (ii->cli_section_tables)
1299 g_free (ii->cli_section_tables);
1300 if (ii->cli_sections)
1301 g_free (ii->cli_sections);
1302 g_free (image->image_info);
1305 for (i = 0; i < image->module_count; ++i) {
1306 if (image->modules [i])
1307 mono_image_close (image->modules [i]);
1310 g_free (image->modules);
1311 if (image->modules_loaded)
1312 g_free (image->modules_loaded);
1313 if (image->references)
1314 g_free (image->references);
1315 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1316 if (!image->dynamic) {
1317 if (debug_assembly_unload)
1318 mono_mempool_invalidate (image->mempool);
1320 mono_mempool_destroy (image->mempool);
1324 /* Dynamic images are GC_MALLOCed */
1325 struct _MonoDynamicImage *di = (struct _MonoDynamicImage*)image;
1327 g_free ((char*)image->module_name);
1329 g_hash_table_destroy (di->typespec);
1331 g_hash_table_destroy (di->typeref);
1333 g_hash_table_destroy (di->handleref);
1335 mono_g_hash_table_destroy (di->tokens);
1336 if (di->blob_cache) {
1337 g_hash_table_foreach (di->blob_cache, free_blob_cache_entry, NULL);
1338 g_hash_table_destroy (di->blob_cache);
1340 g_list_free (di->array_methods);
1342 g_ptr_array_free (di->gen_params, TRUE);
1343 if (di->token_fixups)
1344 mono_g_hash_table_destroy (di->token_fixups);
1345 if (di->method_to_table_idx)
1346 g_hash_table_destroy (di->method_to_table_idx);
1347 if (di->field_to_table_idx)
1348 g_hash_table_destroy (di->field_to_table_idx);
1349 if (di->method_aux_hash)
1350 g_hash_table_destroy (di->method_aux_hash);
1351 g_free (di->strong_name);
1352 g_free (di->win32_res);
1353 /*g_print ("string heap destroy for image %p\n", di);*/
1354 mono_dynamic_stream_reset (&di->sheap);
1355 mono_dynamic_stream_reset (&di->code);
1356 mono_dynamic_stream_reset (&di->resources);
1357 mono_dynamic_stream_reset (&di->us);
1358 mono_dynamic_stream_reset (&di->blob);
1359 mono_dynamic_stream_reset (&di->tstream);
1360 mono_dynamic_stream_reset (&di->guid);
1361 for (i = 0; i < MONO_TABLE_NUM; ++i) {
1362 g_free (di->tables [i].values);
1364 mono_mempool_destroy (image->mempool);
1369 * mono_image_strerror:
1370 * @status: an code indicating the result from a recent operation
1372 * Returns: a string describing the error
1375 mono_image_strerror (MonoImageOpenStatus status)
1380 case MONO_IMAGE_ERROR_ERRNO:
1381 return strerror (errno);
1382 case MONO_IMAGE_IMAGE_INVALID:
1383 return "File does not contain a valid CIL image";
1384 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1385 return "An assembly was referenced, but could not be found";
1387 return "Internal error";
1391 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1392 guint32 lang_id, gunichar2 *name,
1393 MonoPEResourceDirEntry *entry,
1394 MonoPEResourceDir *root, guint32 level)
1396 gboolean is_string, is_dir;
1397 guint32 name_offset, dir_offset;
1399 /* Level 0 holds a directory entry for each type of resource
1400 * (identified by ID or name).
1402 * Level 1 holds a directory entry for each named resource
1403 * item, and each "anonymous" item of a particular type of
1406 * Level 2 holds a directory entry for each language pointing to
1409 name_offset = GUINT32_FROM_LE (entry->name_offset) & 0x7fffffff;
1410 dir_offset = GUINT32_FROM_LE (entry->dir_offset) & 0x7fffffff;
1412 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
1413 is_string = (GUINT32_FROM_LE (entry->name_offset) & 0x80000000) != 0;
1414 is_dir = (GUINT32_FROM_LE (entry->dir_offset) & 0x80000000) != 0;
1416 is_string = entry->name_is_string;
1417 is_dir = entry->is_dir;
1421 if((is_string==FALSE && name_offset!=res_id) ||
1422 (is_string==TRUE)) {
1425 } else if (level==1) {
1428 is_string==TRUE && name!=lookup (name_offset)) {
1432 } else if (level==2) {
1433 if ((is_string == FALSE &&
1434 name_offset != lang_id &&
1436 (is_string == TRUE)) {
1440 g_assert_not_reached ();
1444 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1445 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1448 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1450 for(i=0; i<entries; i++) {
1451 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1454 ret=mono_image_walk_resource_tree (info, res_id,
1465 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
1466 MonoPEResourceDataEntry *res;
1468 res = g_new0 (MonoPEResourceDataEntry, 1);
1470 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
1471 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
1472 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
1473 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
1480 * mono_image_lookup_resource:
1481 * @image: the image to look up the resource in
1482 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1483 * @lang_id: The language id.
1484 * @name: the resource name to lookup.
1486 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1487 * of the given resource. The caller should free it using g_free () when no longer
1491 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1493 MonoCLIImageInfo *info;
1494 MonoDotNetHeader *header;
1495 MonoPEDatadir *datadir;
1496 MonoPEDirEntry *rsrc;
1497 MonoPEResourceDir *resource_dir;
1498 MonoPEResourceDirEntry *res_entries;
1505 info=image->image_info;
1510 header=&info->cli_header;
1515 datadir=&header->datadir;
1520 rsrc=&datadir->pe_resource_table;
1525 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1526 if(resource_dir==NULL) {
1530 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
1531 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1533 for(i=0; i<entries; i++) {
1534 MonoPEResourceDirEntry *entry=&res_entries[i];
1537 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1538 name, entry, resource_dir,
1549 * mono_image_get_entry_point:
1550 * @image: the image where the entry point will be looked up.
1552 * Use this routine to determine the metadata token for method that
1553 * has been flagged as the entry point.
1555 * Returns: the token for the entry point method in the image
1558 mono_image_get_entry_point (MonoImage *image)
1560 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1564 * mono_image_get_resource:
1565 * @image: the image where the resource will be looked up.
1566 * @offset: The offset to add to the resource
1567 * @size: a pointer to an int where the size of the resource will be stored
1569 * This is a low-level routine that fetches a resource from the
1570 * metadata that starts at a given @offset. The @size parameter is
1571 * filled with the data field as encoded in the metadata.
1573 * Returns: the pointer to the resource whose offset is @offset.
1576 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1578 MonoCLIImageInfo *iinfo = image->image_info;
1579 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1582 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1585 data = mono_image_rva_map (image, ch->ch_resources.rva);
1590 *size = read32 (data);
1596 mono_image_load_file_for_image (MonoImage *image, int fileidx)
1598 char *base_dir, *name;
1600 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
1604 if (fileidx < 1 || fileidx > t->rows)
1607 mono_loader_lock ();
1608 if (image->files && image->files [fileidx - 1]) {
1609 mono_loader_unlock ();
1610 return image->files [fileidx - 1];
1614 image->files = g_new0 (MonoImage*, t->rows);
1616 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
1617 fname = mono_metadata_string_heap (image, fname_id);
1618 base_dir = g_path_get_dirname (image->name);
1619 name = g_build_filename (base_dir, fname, NULL);
1620 res = mono_image_open (name, NULL);
1623 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
1624 res->assembly = image->assembly;
1625 for (i = 0; i < res->module_count; ++i) {
1626 if (res->modules [i] && !res->modules [i]->assembly)
1627 res->modules [i]->assembly = image->assembly;
1630 image->files [fileidx - 1] = res;
1632 mono_loader_unlock ();
1639 * mono_image_get_strong_name:
1640 * @image: a MonoImage
1641 * @size: a guint32 pointer, or NULL.
1643 * If the image has a strong name, and @size is not NULL, the value
1644 * pointed to by size will have the size of the strong name.
1646 * Returns: NULL if the image does not have a strong name, or a
1647 * pointer to the public key.
1650 mono_image_get_strong_name (MonoImage *image, guint32 *size)
1652 MonoCLIImageInfo *iinfo = image->image_info;
1653 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1656 if (!de->size || !de->rva)
1658 data = mono_image_rva_map (image, de->rva);
1667 * mono_image_strong_name_position:
1668 * @image: a MonoImage
1669 * @size: a guint32 pointer, or NULL.
1671 * If the image has a strong name, and @size is not NULL, the value
1672 * pointed to by size will have the size of the strong name.
1674 * Returns: the position within the image file where the strong name
1678 mono_image_strong_name_position (MonoImage *image, guint32 *size)
1680 MonoCLIImageInfo *iinfo = image->image_info;
1681 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1682 const int top = iinfo->cli_section_count;
1683 MonoSectionTable *tables = iinfo->cli_section_tables;
1685 guint32 addr = de->rva;
1689 if (!de->size || !de->rva)
1691 for (i = 0; i < top; i++){
1692 if ((addr >= tables->st_virtual_address) &&
1693 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
1694 return tables->st_raw_data_ptr +
1695 (addr - tables->st_virtual_address);
1704 * mono_image_get_public_key:
1705 * @image: a MonoImage
1706 * @size: a guint32 pointer, or NULL.
1708 * This is used to obtain the public key in the @image.
1710 * If the image has a public key, and @size is not NULL, the value
1711 * pointed to by size will have the size of the public key.
1713 * Returns: NULL if the image does not have a public key, or a pointer
1714 * to the public key.
1717 mono_image_get_public_key (MonoImage *image, guint32 *size)
1721 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
1723 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
1726 pubkey = mono_metadata_blob_heap (image, tok);
1727 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
1734 * mono_image_get_name:
1735 * @name: a MonoImage
1737 * Returns: the name of the assembly.
1740 mono_image_get_name (MonoImage *image)
1742 return image->assembly_name;
1746 * mono_image_get_filename:
1747 * @image: a MonoImage
1749 * Used to get the filename that hold the actual MonoImage
1751 * Returns: the filename.
1754 mono_image_get_filename (MonoImage *image)
1760 mono_image_get_guid (MonoImage *image)
1765 const MonoTableInfo*
1766 mono_image_get_table_info (MonoImage *image, int table_id)
1768 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
1770 return &image->tables [table_id];
1774 mono_image_get_table_rows (MonoImage *image, int table_id)
1776 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
1778 return image->tables [table_id].rows;
1782 mono_table_info_get_rows (const MonoTableInfo *table)
1788 * mono_image_get_assembly:
1789 * @image: the MonoImage.
1791 * Use this routine to get the assembly that owns this image.
1793 * Returns: the assembly that holds this image.
1796 mono_image_get_assembly (MonoImage *image)
1798 return image->assembly;
1802 * mono_image_is_dynamic:
1803 * @image: the MonoImage
1805 * Determines if the given image was created dynamically through the
1806 * System.Reflection.Emit API
1808 * Returns: TRUE if the image was created dynamically, FALSE if not.
1811 mono_image_is_dynamic (MonoImage *image)
1813 return image->dynamic;
1817 * mono_image_has_authenticode_entry:
1818 * @image: the MonoImage
1820 * Use this routine to determine if the image has a Authenticode
1821 * Certificate Table.
1823 * Returns: TRUE if the image contains an authenticode entry in the PE
1827 mono_image_has_authenticode_entry (MonoImage *image)
1829 MonoCLIImageInfo *iinfo = image->image_info;
1830 MonoDotNetHeader *header = &iinfo->cli_header;
1831 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
1832 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
1833 return ((de->rva != 0) && (de->size > 8));