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 <sys/types.h>
33 #define INVALID_ADDRESS 0xffffffff
36 * Keeps track of the various assemblies loaded
38 static GHashTable *loaded_images_hash;
39 static GHashTable *loaded_images_guid_hash;
40 static GHashTable *loaded_images_refonly_hash;
41 static GHashTable *loaded_images_refonly_guid_hash;
43 static gboolean debug_assembly_unload = FALSE;
45 #define mono_images_lock() EnterCriticalSection (&images_mutex)
46 #define mono_images_unlock() LeaveCriticalSection (&images_mutex)
47 static CRITICAL_SECTION images_mutex;
50 mono_cli_rva_image_map (MonoCLIImageInfo *iinfo, guint32 addr)
52 const int top = iinfo->cli_section_count;
53 MonoSectionTable *tables = iinfo->cli_section_tables;
56 for (i = 0; i < top; i++){
57 if ((addr >= tables->st_virtual_address) &&
58 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
59 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
63 return INVALID_ADDRESS;
67 * mono_images_rva_map:
69 * @addr: relative virtual address (RVA)
71 * This is a low-level routine used by the runtime to map relative
72 * virtual address (RVA) into their location in memory.
74 * Returns: the address in memory for the given RVA, or NULL if the
75 * RVA is not valid for this image.
78 mono_image_rva_map (MonoImage *image, guint32 addr)
80 MonoCLIImageInfo *iinfo = image->image_info;
81 const int top = iinfo->cli_section_count;
82 MonoSectionTable *tables = iinfo->cli_section_tables;
85 for (i = 0; i < top; i++){
86 if ((addr >= tables->st_virtual_address) &&
87 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
88 if (!iinfo->cli_sections [i]) {
89 if (!mono_image_ensure_section_idx (image, i))
92 return (char*)iinfo->cli_sections [i] +
93 (addr - tables->st_virtual_address);
103 * Initialize the global variables used by this module.
106 mono_images_init (void)
108 InitializeCriticalSection (&images_mutex);
110 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
111 loaded_images_guid_hash = g_hash_table_new (g_str_hash, g_str_equal);
112 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
113 loaded_images_refonly_guid_hash = g_hash_table_new (g_str_hash, g_str_equal);
115 debug_assembly_unload = getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
119 * mono_images_cleanup:
121 * Free all resources used by this module.
124 mono_images_cleanup (void)
126 DeleteCriticalSection (&images_mutex);
128 g_hash_table_destroy (loaded_images_hash);
129 g_hash_table_destroy (loaded_images_guid_hash);
130 g_hash_table_destroy (loaded_images_refonly_hash);
131 g_hash_table_destroy (loaded_images_refonly_guid_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 load_modules (MonoImage *image, MonoImageOpenStatus *status)
443 MonoTableInfo *file_table;
446 gboolean refonly = image->ref_only;
447 GList *list_iter, *valid_modules = NULL;
452 file_table = &image->tables [MONO_TABLE_FILE];
453 for (i = 0; i < file_table->rows; i++) {
454 guint32 cols [MONO_FILE_SIZE];
455 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
456 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
458 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
461 t = &image->tables [MONO_TABLE_MODULEREF];
462 image->modules = g_new0 (MonoImage *, t->rows);
463 image->module_count = t->rows;
464 base_dir = g_path_get_dirname (image->name);
465 for (i = 0; i < t->rows; i++){
468 guint32 cols [MONO_MODULEREF_SIZE];
471 mono_metadata_decode_row (t, i, cols, MONO_MODULEREF_SIZE);
472 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
473 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
474 /* be safe with string dups, but we could just compare string indexes */
475 if (strcmp (list_iter->data, name) == 0) {
482 module_ref = g_build_filename (base_dir, name, NULL);
483 image->modules [i] = mono_image_open_full (module_ref, status, refonly);
484 if (image->modules [i]) {
485 mono_image_addref (image->modules [i]);
486 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
489 * FIXME: We should probably do lazy-loading of modules.
492 *status = MONO_IMAGE_OK;
497 g_list_free (valid_modules);
501 register_guid (gpointer key, gpointer value, gpointer user_data)
503 MonoImage *image = (MonoImage*)value;
505 if (!g_hash_table_lookup (loaded_images_guid_hash, image))
506 g_hash_table_insert (loaded_images_guid_hash, image->guid, image);
510 build_guid_table (gboolean refonly)
512 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
513 g_hash_table_foreach (loaded_images, register_guid, NULL);
517 mono_image_init (MonoImage *image)
519 image->mempool = mono_mempool_new ();
520 image->method_cache = g_hash_table_new (NULL, NULL);
521 image->class_cache = g_hash_table_new (NULL, NULL);
522 image->field_cache = g_hash_table_new (NULL, NULL);
524 image->delegate_begin_invoke_cache =
525 g_hash_table_new ((GHashFunc)mono_signature_hash,
526 (GCompareFunc)mono_metadata_signature_equal);
527 image->delegate_end_invoke_cache =
528 g_hash_table_new ((GHashFunc)mono_signature_hash,
529 (GCompareFunc)mono_metadata_signature_equal);
530 image->delegate_invoke_cache =
531 g_hash_table_new ((GHashFunc)mono_signature_hash,
532 (GCompareFunc)mono_metadata_signature_equal);
533 image->runtime_invoke_cache =
534 g_hash_table_new ((GHashFunc)mono_signature_hash,
535 (GCompareFunc)mono_metadata_signature_equal);
537 image->managed_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
538 image->native_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
539 image->remoting_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
540 image->cominterop_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
541 image->cominterop_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
542 image->synchronized_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
543 image->unbox_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
545 image->ldfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
546 image->ldflda_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
547 image->ldfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
548 image->stfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
549 image->stfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
550 image->isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
551 image->castclass_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
552 image->proxy_isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
554 image->typespec_cache = g_hash_table_new (NULL, NULL);
555 image->memberref_signatures = g_hash_table_new (NULL, NULL);
556 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
557 image->method_signatures = g_hash_table_new (NULL, NULL);
561 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
562 gboolean care_about_cli)
564 MonoCLIImageInfo *iinfo;
565 MonoDotNetHeader *header;
566 MonoMSDOSHeader msdos;
569 mono_image_init (image);
571 iinfo = image->image_info;
572 header = &iinfo->cli_header;
575 *status = MONO_IMAGE_IMAGE_INVALID;
577 if (offset + sizeof (msdos) > image->raw_data_len)
579 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
581 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
584 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
586 offset = msdos.pe_offset;
588 if (offset + sizeof (MonoDotNetHeader) > image->raw_data_len)
590 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
591 offset += sizeof (MonoDotNetHeader);
593 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
594 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
595 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
596 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
597 SWAP32 (header->coff.coff_time);
598 SWAP32 (header->coff.coff_symptr);
599 SWAP32 (header->coff.coff_symcount);
600 SWAP16 (header->coff.coff_machine);
601 SWAP16 (header->coff.coff_sections);
602 SWAP16 (header->coff.coff_opt_header_size);
603 SWAP16 (header->coff.coff_attributes);
605 SWAP32 (header->pe.pe_code_size);
606 SWAP32 (header->pe.pe_data_size);
607 SWAP32 (header->pe.pe_uninit_data_size);
608 SWAP32 (header->pe.pe_rva_entry_point);
609 SWAP32 (header->pe.pe_rva_code_base);
610 SWAP32 (header->pe.pe_rva_data_base);
611 SWAP16 (header->pe.pe_magic);
613 /* MonoPEHeaderNT: not used yet */
614 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
615 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
616 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
617 SWAP16 (header->nt.pe_os_major); /* must be 4 */
618 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
619 SWAP16 (header->nt.pe_user_major);
620 SWAP16 (header->nt.pe_user_minor);
621 SWAP16 (header->nt.pe_subsys_major);
622 SWAP16 (header->nt.pe_subsys_minor);
623 SWAP32 (header->nt.pe_reserved_1);
624 SWAP32 (header->nt.pe_image_size);
625 SWAP32 (header->nt.pe_header_size);
626 SWAP32 (header->nt.pe_checksum);
627 SWAP16 (header->nt.pe_subsys_required);
628 SWAP16 (header->nt.pe_dll_flags);
629 SWAP32 (header->nt.pe_stack_reserve);
630 SWAP32 (header->nt.pe_stack_commit);
631 SWAP32 (header->nt.pe_heap_reserve);
632 SWAP32 (header->nt.pe_heap_commit);
633 SWAP32 (header->nt.pe_loader_flags);
634 SWAP32 (header->nt.pe_data_dir_count);
636 /* MonoDotNetHeader: mostly unused */
637 SWAPPDE (header->datadir.pe_export_table);
638 SWAPPDE (header->datadir.pe_import_table);
639 SWAPPDE (header->datadir.pe_resource_table);
640 SWAPPDE (header->datadir.pe_exception_table);
641 SWAPPDE (header->datadir.pe_certificate_table);
642 SWAPPDE (header->datadir.pe_reloc_table);
643 SWAPPDE (header->datadir.pe_debug);
644 SWAPPDE (header->datadir.pe_copyright);
645 SWAPPDE (header->datadir.pe_global_ptr);
646 SWAPPDE (header->datadir.pe_tls_table);
647 SWAPPDE (header->datadir.pe_load_config_table);
648 SWAPPDE (header->datadir.pe_bound_import);
649 SWAPPDE (header->datadir.pe_iat);
650 SWAPPDE (header->datadir.pe_delay_import_desc);
651 SWAPPDE (header->datadir.pe_cli_header);
652 SWAPPDE (header->datadir.pe_reserved);
659 if (header->coff.coff_machine != 0x14c)
662 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
665 if (header->pesig[0] != 'P' || header->pesig[1] != 'E' || header->pe.pe_magic != 0x10B)
670 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
671 * which produces binaries with 7.0. From Sergey:
673 * The reason is that MSVC7 uses traditional compile/link
674 * sequence for CIL executables, and VS.NET (and Framework
675 * SDK) includes linker version 7, that puts 7.0 in this
676 * field. That's why it's currently not possible to load VC
677 * binaries with Mono. This field is pretty much meaningless
678 * anyway (what linker?).
680 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
685 * FIXME: byte swap all addresses here for header.
688 if (!load_section_tables (image, iinfo, offset))
691 if (care_about_cli == FALSE) {
695 /* Load the CLI header */
696 if (!load_cli_header (image, iinfo))
699 if (!load_metadata (image, iinfo))
702 /* modules don't have an assembly table row */
703 if (image->tables [MONO_TABLE_ASSEMBLY].rows)
704 image->assembly_name = mono_metadata_string_heap (image,
705 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
706 0, MONO_ASSEMBLY_NAME));
708 image->module_name = mono_metadata_string_heap (image,
709 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
710 0, MONO_MODULE_NAME));
712 load_modules (image, status);
716 *status = MONO_IMAGE_OK;
721 mono_image_close (image);
726 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
727 gboolean care_about_cli, gboolean refonly)
729 MonoCLIImageInfo *iinfo;
732 struct stat stat_buf;
734 if ((filed = fopen (fname, "rb")) == NULL){
736 *status = MONO_IMAGE_ERROR_ERRNO;
740 if (fstat (fileno (filed), &stat_buf)) {
743 *status = MONO_IMAGE_ERROR_ERRNO;
746 image = g_new0 (MonoImage, 1);
747 image->file_descr = filed;
748 image->raw_data_len = stat_buf.st_size;
749 image->raw_data = mono_raw_buffer_load (fileno (filed), FALSE, 0, stat_buf.st_size);
750 iinfo = g_new0 (MonoCLIImageInfo, 1);
751 image->image_info = iinfo;
752 image->name = mono_path_resolve_symlinks (fname);
753 image->ref_only = refonly;
754 image->ref_count = 1;
756 return do_mono_image_load (image, status, care_about_cli);
760 mono_image_loaded_full (const char *name, gboolean refonly)
763 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
766 res = g_hash_table_lookup (loaded_images, name);
767 mono_images_unlock ();
773 * @name: name of the image to load
775 * This routine ensures that the given image is loaded.
777 * Returns: the loaded MonoImage, or NULL on failure.
780 mono_image_loaded (const char *name)
782 return mono_image_loaded_full (name, FALSE);
786 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
789 GHashTable *loaded_images = refonly ? loaded_images_refonly_guid_hash : loaded_images_guid_hash;
792 res = g_hash_table_lookup (loaded_images, guid);
793 mono_images_unlock ();
798 mono_image_loaded_by_guid (const char *guid)
800 return mono_image_loaded_by_guid_full (guid, FALSE);
804 register_image (MonoImage *image)
807 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
810 image2 = g_hash_table_lookup (loaded_images, image->name);
813 /* Somebody else beat us to it */
814 mono_image_addref (image2);
815 mono_images_unlock ();
816 mono_image_close (image);
819 g_hash_table_insert (loaded_images, image->name, image);
820 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
821 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
822 g_hash_table_insert (image->ref_only ? loaded_images_refonly_guid_hash : loaded_images_guid_hash, image->guid, image);
823 mono_images_unlock ();
829 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
831 MonoCLIImageInfo *iinfo;
835 if (!data || !data_len) {
837 *status = MONO_IMAGE_IMAGE_INVALID;
842 datac = g_try_malloc (data_len);
845 *status = MONO_IMAGE_ERROR_ERRNO;
848 memcpy (datac, data, data_len);
851 image = g_new0 (MonoImage, 1);
852 image->raw_data = datac;
853 image->raw_data_len = data_len;
854 image->raw_data_allocated = need_copy;
855 image->name = g_strdup_printf ("data-%p", datac);
856 iinfo = g_new0 (MonoCLIImageInfo, 1);
857 image->image_info = iinfo;
858 image->ref_only = refonly;
860 image = do_mono_image_load (image, status, TRUE);
864 return register_image (image);
868 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
870 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
874 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
877 GHashTable *loaded_images;
880 g_return_val_if_fail (fname != NULL, NULL);
882 absfname = mono_path_canonicalize (fname);
885 * The easiest solution would be to do all the loading inside the mutex,
886 * but that would lead to scalability problems. So we let the loading
887 * happen outside the mutex, and if multiple threads happen to load
888 * the same image, we discard all but the first copy.
891 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
892 image = g_hash_table_lookup (loaded_images, absfname);
896 mono_image_addref (image);
897 mono_images_unlock ();
900 mono_images_unlock ();
902 image = do_mono_image_open (fname, status, TRUE, refonly);
906 return register_image (image);
911 * @fname: filename that points to the module we want to open
912 * @status: An error condition is returned in this field
914 * Returns: An open image of type %MonoImage or NULL on error.
915 * The caller holds a temporary reference to the returned image which should be cleared
916 * when no longer needed by calling mono_image_close ().
917 * if NULL, then check the value of @status for details on the error
920 mono_image_open (const char *fname, MonoImageOpenStatus *status)
922 return mono_image_open_full (fname, status, FALSE);
927 * @fname: filename that points to the module we want to open
928 * @status: An error condition is returned in this field
930 * Returns: An open image of type %MonoImage or NULL on error. if
931 * NULL, then check the value of @status for details on the error.
932 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
933 * It's just a PE file loader, used for FileVersionInfo. It also does
934 * not use the image cache.
937 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
939 g_return_val_if_fail (fname != NULL, NULL);
941 return(do_mono_image_open (fname, status, FALSE, FALSE));
945 free_hash_table (gpointer key, gpointer val, gpointer user_data)
947 g_hash_table_destroy ((GHashTable*)val);
952 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
954 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
959 free_blob_cache_entry (gpointer key, gpointer val, gpointer user_data)
965 free_remoting_wrappers (gpointer key, gpointer val, gpointer user_data)
971 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
973 g_slist_free ((GSList*)val);
978 * @image: The image file we wish to add a reference to
980 * Increases the reference count of an image.
983 mono_image_addref (MonoImage *image)
985 InterlockedIncrement (&image->ref_count);
989 mono_dynamic_stream_reset (MonoDynamicStream* stream)
991 stream->alloc_size = stream->index = stream->offset = 0;
992 g_free (stream->data);
995 g_hash_table_destroy (stream->hash);
1002 * @image: The image file we wish to close
1004 * Closes an image file, deallocates all memory consumed and
1005 * unmaps all possible sections of the file
1008 mono_image_close (MonoImage *image)
1011 GHashTable *loaded_images, *loaded_images_guid;
1014 g_return_if_fail (image != NULL);
1016 if (InterlockedDecrement (&image->ref_count) > 0)
1019 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1021 mono_images_lock ();
1022 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1023 loaded_images_guid = image->ref_only ? loaded_images_refonly_guid_hash : loaded_images_guid_hash;
1024 image2 = g_hash_table_lookup (loaded_images, image->name);
1025 if (image == image2) {
1026 /* This is not true if we are called from mono_image_open () */
1027 g_hash_table_remove (loaded_images, image->name);
1028 g_hash_table_remove (loaded_images_guid, image->guid);
1030 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1031 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1033 /* Multiple images might have the same guid */
1034 build_guid_table (image->ref_only);
1036 mono_images_unlock ();
1038 if (image->file_descr) {
1039 fclose (image->file_descr);
1040 image->file_descr = NULL;
1041 if (image->raw_data != NULL)
1042 mono_raw_buffer_free (image->raw_data);
1045 if (image->raw_data_allocated) {
1046 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1047 MonoCLIImageInfo *ii = image->image_info;
1049 if ((image->raw_metadata > image->raw_data) &&
1050 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1051 image->raw_metadata = NULL;
1053 for (i = 0; i < ii->cli_section_count; i++)
1054 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1055 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1056 ii->cli_sections [i] = NULL;
1058 g_free (image->raw_data);
1061 if (debug_assembly_unload) {
1062 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1064 g_free (image->name);
1065 g_free (image->guid);
1066 g_free (image->version);
1067 g_free (image->files);
1070 g_hash_table_destroy (image->method_cache);
1071 g_hash_table_destroy (image->class_cache);
1072 g_hash_table_destroy (image->field_cache);
1073 if (image->array_cache) {
1074 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1075 g_hash_table_destroy (image->array_cache);
1077 if (image->ptr_cache)
1078 g_hash_table_destroy (image->ptr_cache);
1079 if (image->name_cache) {
1080 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1081 g_hash_table_destroy (image->name_cache);
1083 g_hash_table_destroy (image->native_wrapper_cache);
1084 g_hash_table_destroy (image->managed_wrapper_cache);
1085 g_hash_table_destroy (image->delegate_begin_invoke_cache);
1086 g_hash_table_destroy (image->delegate_end_invoke_cache);
1087 g_hash_table_destroy (image->delegate_invoke_cache);
1088 g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
1089 g_hash_table_destroy (image->remoting_invoke_cache);
1090 g_hash_table_destroy (image->runtime_invoke_cache);
1091 g_hash_table_destroy (image->synchronized_cache);
1092 g_hash_table_destroy (image->unbox_wrapper_cache);
1093 g_hash_table_destroy (image->cominterop_invoke_cache);
1094 g_hash_table_destroy (image->cominterop_wrapper_cache);
1095 g_hash_table_destroy (image->typespec_cache);
1096 g_hash_table_destroy (image->ldfld_wrapper_cache);
1097 g_hash_table_destroy (image->ldflda_wrapper_cache);
1098 g_hash_table_destroy (image->ldfld_remote_wrapper_cache);
1099 g_hash_table_destroy (image->stfld_wrapper_cache);
1100 g_hash_table_destroy (image->stfld_remote_wrapper_cache);
1101 g_hash_table_destroy (image->isinst_cache);
1102 g_hash_table_destroy (image->castclass_cache);
1103 g_hash_table_destroy (image->proxy_isinst_cache);
1105 /* The ownership of signatures is not well defined */
1106 //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
1107 g_hash_table_destroy (image->memberref_signatures);
1108 //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
1109 g_hash_table_destroy (image->helper_signatures);
1110 g_hash_table_destroy (image->method_signatures);
1112 if (image->interface_bitset) {
1113 mono_unload_interface_ids (image->interface_bitset);
1114 mono_bitset_free (image->interface_bitset);
1116 if (image->image_info){
1117 MonoCLIImageInfo *ii = image->image_info;
1119 if (ii->cli_section_tables)
1120 g_free (ii->cli_section_tables);
1121 if (ii->cli_sections)
1122 g_free (ii->cli_sections);
1123 g_free (image->image_info);
1126 for (i = 0; i < image->module_count; ++i) {
1127 if (image->modules [i])
1128 mono_image_close (image->modules [i]);
1131 g_free (image->modules);
1132 if (image->references)
1133 g_free (image->references);
1134 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1135 if (!image->dynamic) {
1136 if (debug_assembly_unload)
1137 mono_mempool_invalidate (image->mempool);
1139 mono_mempool_destroy (image->mempool);
1143 /* Dynamic images are GC_MALLOCed */
1144 struct _MonoDynamicImage *di = (struct _MonoDynamicImage*)image;
1146 g_free ((char*)image->module_name);
1148 g_hash_table_destroy (di->typespec);
1150 g_hash_table_destroy (di->typeref);
1152 g_hash_table_destroy (di->handleref);
1154 mono_g_hash_table_destroy (di->tokens);
1155 if (di->blob_cache) {
1156 g_hash_table_foreach (di->blob_cache, free_blob_cache_entry, NULL);
1157 g_hash_table_destroy (di->blob_cache);
1159 g_list_free (di->array_methods);
1161 g_ptr_array_free (di->gen_params, TRUE);
1162 if (di->token_fixups)
1163 mono_g_hash_table_destroy (di->token_fixups);
1164 if (di->method_to_table_idx)
1165 g_hash_table_destroy (di->method_to_table_idx);
1166 if (di->field_to_table_idx)
1167 g_hash_table_destroy (di->field_to_table_idx);
1168 if (di->method_aux_hash)
1169 g_hash_table_destroy (di->method_aux_hash);
1170 g_free (di->strong_name);
1171 g_free (di->win32_res);
1172 /*g_print ("string heap destroy for image %p\n", di);*/
1173 mono_dynamic_stream_reset (&di->sheap);
1174 mono_dynamic_stream_reset (&di->code);
1175 mono_dynamic_stream_reset (&di->resources);
1176 mono_dynamic_stream_reset (&di->us);
1177 mono_dynamic_stream_reset (&di->blob);
1178 mono_dynamic_stream_reset (&di->tstream);
1179 mono_dynamic_stream_reset (&di->guid);
1180 for (i = 0; i < MONO_TABLE_NUM; ++i) {
1181 g_free (di->tables [i].values);
1183 mono_mempool_destroy (image->mempool);
1188 * mono_image_strerror:
1189 * @status: an code indicating the result from a recent operation
1191 * Returns: a string describing the error
1194 mono_image_strerror (MonoImageOpenStatus status)
1199 case MONO_IMAGE_ERROR_ERRNO:
1200 return strerror (errno);
1201 case MONO_IMAGE_IMAGE_INVALID:
1202 return "File does not contain a valid CIL image";
1203 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1204 return "An assembly was referenced, but could not be found";
1206 return "Internal error";
1210 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1211 guint32 lang_id, gunichar2 *name,
1212 MonoPEResourceDirEntry *entry,
1213 MonoPEResourceDir *root, guint32 level)
1215 gboolean is_string=entry->name_is_string;
1217 /* Level 0 holds a directory entry for each type of resource
1218 * (identified by ID or name).
1220 * Level 1 holds a directory entry for each named resource
1221 * item, and each "anonymous" item of a particular type of
1224 * Level 2 holds a directory entry for each language pointing to
1229 if((is_string==FALSE && entry->name_offset!=res_id) ||
1230 (is_string==TRUE)) {
1233 } else if (level==1) {
1236 is_string==TRUE && name!=lookup (entry->name_offset)) {
1240 } else if (level==2) {
1241 if ((is_string == FALSE &&
1242 entry->name_offset != lang_id &&
1244 (is_string == TRUE)) {
1248 g_assert_not_reached ();
1251 if(entry->is_dir==TRUE) {
1252 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+entry->dir_offset);
1253 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1256 entries=res_dir->res_named_entries + res_dir->res_id_entries;
1258 for(i=0; i<entries; i++) {
1259 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1262 ret=mono_image_walk_resource_tree (info, res_id,
1273 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+entry->dir_offset);
1280 * mono_image_lookup_resource:
1281 * @image: the image to look up the resource in
1282 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1283 * @lang_id: The language id.
1284 * @name: the resource name to lookup.
1286 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1287 * of the given resource.
1290 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1292 MonoCLIImageInfo *info;
1293 MonoDotNetHeader *header;
1294 MonoPEDatadir *datadir;
1295 MonoPEDirEntry *rsrc;
1296 MonoPEResourceDir *resource_dir;
1297 MonoPEResourceDirEntry *res_entries;
1304 info=image->image_info;
1309 header=&info->cli_header;
1314 datadir=&header->datadir;
1319 rsrc=&datadir->pe_resource_table;
1324 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1325 if(resource_dir==NULL) {
1329 entries=resource_dir->res_named_entries + resource_dir->res_id_entries;
1330 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1332 for(i=0; i<entries; i++) {
1333 MonoPEResourceDirEntry *entry=&res_entries[i];
1336 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1337 name, entry, resource_dir,
1348 * mono_image_get_entry_point:
1349 * @image: the image where the entry point will be looked up.
1351 * Use this routine to determine the metadata token for method that
1352 * has been flagged as the entry point.
1354 * Returns: the token for the entry point method in the image
1357 mono_image_get_entry_point (MonoImage *image)
1359 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1363 * mono_image_get_resource:
1364 * @image: the image where the resource will be looked up.
1365 * @offset: The offset to add to the resource
1366 * @size: a pointer to an int where the size of the resource will be stored
1368 * This is a low-level routine that fetches a resource from the
1369 * metadata that starts at a given @offset. The @size parameter is
1370 * filled with the data field as encoded in the metadata.
1372 * Returns: the pointer to the resource whose offset is @offset.
1375 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1377 MonoCLIImageInfo *iinfo = image->image_info;
1378 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1381 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1384 data = mono_image_rva_map (image, ch->ch_resources.rva);
1389 *size = read32 (data);
1395 mono_image_load_file_for_image (MonoImage *image, int fileidx)
1397 char *base_dir, *name;
1399 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
1403 if (fileidx < 1 || fileidx > t->rows)
1406 if (image->files && image->files [fileidx - 1])
1407 return image->files [fileidx - 1];
1410 image->files = g_new0 (MonoImage*, t->rows);
1412 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
1413 fname = mono_metadata_string_heap (image, fname_id);
1414 base_dir = g_path_get_dirname (image->name);
1415 name = g_build_filename (base_dir, fname, NULL);
1416 res = mono_image_open (name, NULL);
1419 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
1420 res->assembly = image->assembly;
1421 for (i = 0; i < res->module_count; ++i) {
1422 if (res->modules [i] && !res->modules [i]->assembly)
1423 res->modules [i]->assembly = image->assembly;
1426 image->files [fileidx - 1] = res;
1434 * mono_image_get_strong_name:
1435 * @image: a MonoImage
1436 * @size: a guint32 pointer, or NULL.
1438 * If the image has a strong name, and @size is not NULL, the value
1439 * pointed to by size will have the size of the strong name.
1441 * Returns: NULL if the image does not have a strong name, or a
1442 * pointer to the public key.
1445 mono_image_get_strong_name (MonoImage *image, guint32 *size)
1447 MonoCLIImageInfo *iinfo = image->image_info;
1448 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1451 if (!de->size || !de->rva)
1453 data = mono_image_rva_map (image, de->rva);
1462 * mono_image_strong_name_position:
1463 * @image: a MonoImage
1464 * @size: a guint32 pointer, or NULL.
1466 * If the image has a strong name, and @size is not NULL, the value
1467 * pointed to by size will have the size of the strong name.
1469 * Returns: the position within the image file where the strong name
1473 mono_image_strong_name_position (MonoImage *image, guint32 *size)
1475 MonoCLIImageInfo *iinfo = image->image_info;
1476 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1477 const int top = iinfo->cli_section_count;
1478 MonoSectionTable *tables = iinfo->cli_section_tables;
1480 guint32 addr = de->rva;
1484 if (!de->size || !de->rva)
1486 for (i = 0; i < top; i++){
1487 if ((addr >= tables->st_virtual_address) &&
1488 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
1489 return tables->st_raw_data_ptr +
1490 (addr - tables->st_virtual_address);
1499 * mono_image_get_public_key:
1500 * @image: a MonoImage
1501 * @size: a guint32 pointer, or NULL.
1503 * This is used to obtain the public key in the @image.
1505 * If the image has a public key, and @size is not NULL, the value
1506 * pointed to by size will have the size of the public key.
1508 * Returns: NULL if the image does not have a public key, or a pointer
1509 * to the public key.
1512 mono_image_get_public_key (MonoImage *image, guint32 *size)
1516 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
1518 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
1521 pubkey = mono_metadata_blob_heap (image, tok);
1522 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
1529 * mono_image_get_name:
1530 * @name: a MonoImage
1532 * Returns: the name of the assembly.
1535 mono_image_get_name (MonoImage *image)
1537 return image->assembly_name;
1541 * mono_image_get_filename:
1542 * @image: a MonoImage
1544 * Used to get the filename that hold the actual MonoImage
1546 * Returns: the filename.
1549 mono_image_get_filename (MonoImage *image)
1555 mono_image_get_guid (MonoImage *image)
1560 const MonoTableInfo*
1561 mono_image_get_table_info (MonoImage *image, int table_id)
1563 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
1565 return &image->tables [table_id];
1569 mono_image_get_table_rows (MonoImage *image, int table_id)
1571 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
1573 return image->tables [table_id].rows;
1577 mono_table_info_get_rows (const MonoTableInfo *table)
1583 * mono_image_get_assembly:
1584 * @image: the MonoImage.
1586 * Use this routine to get the assembly that owns this image.
1588 * Returns: the assembly that holds this image.
1591 mono_image_get_assembly (MonoImage *image)
1593 return image->assembly;
1597 * mono_image_is_dynamic:
1598 * @image: the MonoImage
1600 * Determines if the given image was created dynamically through the
1601 * System.Reflection.Emit API
1603 * Returns: TRUE if the image was created dynamically, FALSE if not.
1606 mono_image_is_dynamic (MonoImage *image)
1608 return image->dynamic;
1612 * mono_image_has_authenticode_entry:
1613 * @image: the MonoImage
1615 * Use this routine to determine if the image has a Authenticode
1616 * Certificate Table.
1618 * Returns: TRUE if the image contains an authenticode entry in the PE
1622 mono_image_has_authenticode_entry (MonoImage *image)
1624 MonoCLIImageInfo *iinfo = image->image_info;
1625 MonoDotNetHeader *header = &iinfo->cli_header;
1626 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
1627 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
1628 return ((de->rva != 0) && (de->size > 8));