2 * image.c: Routines for manipulating an image stored in an
3 * extended PE/COFF file.
6 * Miguel de Icaza (miguel@ximian.com)
7 * Paolo Molaro (lupus@ximian.com)
9 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
10 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
21 #include "mono-endian.h"
22 #include "tabledefs.h"
23 #include "tokentype.h"
24 #include "metadata-internals.h"
25 #include "profiler-private.h"
29 #include <mono/io-layer/io-layer.h>
30 #include <mono/utils/mono-logger.h>
31 #include <mono/utils/mono-path.h>
32 #include <mono/utils/mono-mmap.h>
33 #include <mono/utils/mono-io-portability.h>
34 #include <mono/metadata/class-internals.h>
35 #include <mono/metadata/assembly.h>
36 #include <mono/metadata/object-internals.h>
37 #include <mono/metadata/security-core-clr.h>
38 #include <mono/metadata/verify-internals.h>
39 #include <sys/types.h>
45 #define INVALID_ADDRESS 0xffffffff
48 * Keeps track of the various assemblies loaded
50 static GHashTable *loaded_images_hash;
51 static GHashTable *loaded_images_refonly_hash;
53 static gboolean debug_assembly_unload = FALSE;
55 #define mono_images_lock() if (mutex_inited) EnterCriticalSection (&images_mutex)
56 #define mono_images_unlock() if (mutex_inited) LeaveCriticalSection (&images_mutex)
57 static gboolean mutex_inited;
58 static CRITICAL_SECTION images_mutex;
60 /* returns offset relative to image->raw_data */
62 mono_cli_rva_image_map (MonoImage *image, guint32 addr)
64 MonoCLIImageInfo *iinfo = image->image_info;
65 const int top = iinfo->cli_section_count;
66 MonoSectionTable *tables = iinfo->cli_section_tables;
69 for (i = 0; i < top; i++){
70 if ((addr >= tables->st_virtual_address) &&
71 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
73 if (image->is_module_handle)
76 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
80 return INVALID_ADDRESS;
84 * mono_images_rva_map:
86 * @addr: relative virtual address (RVA)
88 * This is a low-level routine used by the runtime to map relative
89 * virtual address (RVA) into their location in memory.
91 * Returns: the address in memory for the given RVA, or NULL if the
92 * RVA is not valid for this image.
95 mono_image_rva_map (MonoImage *image, guint32 addr)
97 MonoCLIImageInfo *iinfo = image->image_info;
98 const int top = iinfo->cli_section_count;
99 MonoSectionTable *tables = iinfo->cli_section_tables;
102 for (i = 0; i < top; i++){
103 if ((addr >= tables->st_virtual_address) &&
104 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
105 if (!iinfo->cli_sections [i]) {
106 if (!mono_image_ensure_section_idx (image, i))
110 if (image->is_module_handle)
111 return image->raw_data + addr;
113 return (char*)iinfo->cli_sections [i] +
114 (addr - tables->st_virtual_address);
124 * Initialize the global variables used by this module.
127 mono_images_init (void)
129 InitializeCriticalSection (&images_mutex);
131 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
132 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
134 debug_assembly_unload = g_getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
140 * mono_images_cleanup:
142 * Free all resources used by this module.
145 mono_images_cleanup (void)
147 DeleteCriticalSection (&images_mutex);
149 g_hash_table_destroy (loaded_images_hash);
150 g_hash_table_destroy (loaded_images_refonly_hash);
152 mutex_inited = FALSE;
156 * mono_image_ensure_section_idx:
157 * @image: The image we are operating on
158 * @section: section number that we will load/map into memory
160 * This routine makes sure that we have an in-memory copy of
161 * an image section (.text, .rsrc, .data).
163 * Returns: TRUE on success
166 mono_image_ensure_section_idx (MonoImage *image, int section)
168 MonoCLIImageInfo *iinfo = image->image_info;
169 MonoSectionTable *sect;
172 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
174 if (iinfo->cli_sections [section] != NULL)
177 sect = &iinfo->cli_section_tables [section];
179 writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
181 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
184 if (image->is_module_handle)
185 iinfo->cli_sections [section] = image->raw_data + sect->st_virtual_address;
188 /* FIXME: we ignore the writable flag since we don't patch the binary */
189 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
194 * mono_image_ensure_section:
195 * @image: The image we are operating on
196 * @section: section name that we will load/map into memory
198 * This routine makes sure that we have an in-memory copy of
199 * an image section (.text, .rsrc, .data).
201 * Returns: TRUE on success
204 mono_image_ensure_section (MonoImage *image, const char *section)
206 MonoCLIImageInfo *ii = image->image_info;
209 for (i = 0; i < ii->cli_section_count; i++){
210 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
213 return mono_image_ensure_section_idx (image, i);
219 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
221 const int top = iinfo->cli_header.coff.coff_sections;
224 iinfo->cli_section_count = top;
225 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
226 iinfo->cli_sections = g_new0 (void *, top);
228 for (i = 0; i < top; i++){
229 MonoSectionTable *t = &iinfo->cli_section_tables [i];
231 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
233 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
234 offset += sizeof (MonoSectionTable);
236 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
237 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
238 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
239 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
240 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
241 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
242 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
243 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
244 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
245 t->st_flags = GUINT32_FROM_LE (t->st_flags);
247 /* consistency checks here */
254 load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
258 offset = mono_cli_rva_image_map (image, iinfo->cli_header.datadir.pe_cli_header.rva);
259 if (offset == INVALID_ADDRESS)
262 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
264 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
266 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
267 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
268 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
269 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
270 SWAP32 (iinfo->cli_cli_header.ch_size);
271 SWAP32 (iinfo->cli_cli_header.ch_flags);
272 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
273 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
274 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
275 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
276 SWAPPDE (iinfo->cli_cli_header.ch_resources);
277 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
278 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
279 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
280 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
281 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
282 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
283 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
284 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
285 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
286 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
287 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
288 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
289 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
294 /* Catch new uses of the fields that are supposed to be zero */
296 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
297 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
298 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
299 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
300 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
301 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
302 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
303 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
304 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
307 * No need to scare people who are testing this, I am just
308 * labelling this as a LAMESPEC
310 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
318 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
320 guint32 offset, size;
326 offset = mono_cli_rva_image_map (image, iinfo->cli_cli_header.ch_metadata.rva);
327 if (offset == INVALID_ADDRESS)
330 size = iinfo->cli_cli_header.ch_metadata.size;
332 if (offset + size > image->raw_data_len)
334 image->raw_metadata = image->raw_data + offset;
336 /* 24.2.1: Metadata root starts here */
337 ptr = image->raw_metadata;
339 if (strncmp (ptr, "BSJB", 4) == 0){
340 guint32 version_string_len;
343 image->md_version_major = read16 (ptr);
345 image->md_version_minor = read16 (ptr);
348 version_string_len = read32 (ptr);
350 image->version = g_strndup (ptr, version_string_len);
351 ptr += version_string_len;
352 pad = ptr - image->raw_metadata;
354 ptr += 4 - (pad % 4);
358 /* skip over flags */
361 streams = read16 (ptr);
364 for (i = 0; i < streams; i++){
365 if (strncmp (ptr + 8, "#~", 3) == 0){
366 image->heap_tables.data = image->raw_metadata + read32 (ptr);
367 image->heap_tables.size = read32 (ptr + 4);
369 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
370 image->heap_strings.data = image->raw_metadata + read32 (ptr);
371 image->heap_strings.size = read32 (ptr + 4);
373 } else if (strncmp (ptr + 8, "#US", 4) == 0){
374 image->heap_us.data = image->raw_metadata + read32 (ptr);
375 image->heap_us.size = read32 (ptr + 4);
377 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
378 image->heap_blob.data = image->raw_metadata + read32 (ptr);
379 image->heap_blob.size = read32 (ptr + 4);
381 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
382 image->heap_guid.data = image->raw_metadata + read32 (ptr);
383 image->heap_guid.size = read32 (ptr + 4);
385 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
386 image->heap_tables.data = image->raw_metadata + read32 (ptr);
387 image->heap_tables.size = read32 (ptr + 4);
389 image->uncompressed_metadata = TRUE;
390 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);
392 g_message ("Unknown heap type: %s\n", ptr + 8);
393 ptr += 8 + strlen (ptr + 8) + 1;
395 pad = ptr - image->raw_metadata;
397 ptr += 4 - (pad % 4);
400 g_assert (image->heap_guid.data);
401 g_assert (image->heap_guid.size >= 16);
403 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
409 * Load representation of logical metadata tables, from the "#~" stream
412 load_tables (MonoImage *image)
414 const char *heap_tables = image->heap_tables.data;
416 guint64 valid_mask, sorted_mask;
417 int valid = 0, table;
420 heap_sizes = heap_tables [6];
421 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
422 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
423 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
425 valid_mask = read64 (heap_tables + 8);
426 sorted_mask = read64 (heap_tables + 16);
427 rows = (const guint32 *) (heap_tables + 24);
429 for (table = 0; table < 64; table++){
430 if ((valid_mask & ((guint64) 1 << table)) == 0){
431 if (table > MONO_TABLE_LAST)
433 image->tables [table].rows = 0;
436 if (table > MONO_TABLE_LAST) {
437 g_warning("bits in valid must be zero above 0x2d (II - 23.1.6)");
439 image->tables [table].rows = read32 (rows);
441 /*if ((sorted_mask & ((guint64) 1 << table)) == 0){
442 g_print ("table %s (0x%02x) is sorted\n", mono_meta_table_name (table), table);
448 image->tables_base = (heap_tables + 24) + (4 * valid);
450 /* They must be the same */
451 g_assert ((const void *) image->tables_base == (const void *) rows);
453 mono_metadata_compute_table_bases (image);
458 load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
460 if (!load_metadata_ptrs (image, iinfo))
463 return load_tables (image);
467 mono_image_check_for_module_cctor (MonoImage *image)
469 MonoTableInfo *t, *mt;
470 t = &image->tables [MONO_TABLE_TYPEDEF];
471 mt = &image->tables [MONO_TABLE_METHOD];
472 if (mono_framework_version () == 1) {
473 image->checked_module_cctor = TRUE;
476 if (image->dynamic) {
478 image->checked_module_cctor = TRUE;
482 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
483 const char *name = mono_metadata_string_heap (image, nameidx);
484 if (strcmp (name, "<Module>") == 0) {
485 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
488 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
490 last_method = mt->rows;
491 for (; first_method < last_method; first_method++) {
492 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
493 name = mono_metadata_string_heap (image, nameidx);
494 if (strcmp (name, ".cctor") == 0) {
495 image->has_module_cctor = TRUE;
496 image->checked_module_cctor = TRUE;
502 image->has_module_cctor = FALSE;
503 image->checked_module_cctor = TRUE;
507 load_modules (MonoImage *image)
514 t = &image->tables [MONO_TABLE_MODULEREF];
515 image->modules = g_new0 (MonoImage *, t->rows);
516 image->modules_loaded = g_new0 (gboolean, t->rows);
517 image->module_count = t->rows;
521 * mono_image_load_module:
523 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
524 * it cannot be loaded.
527 mono_image_load_module (MonoImage *image, int idx)
530 MonoTableInfo *file_table;
533 gboolean refonly = image->ref_only;
534 GList *list_iter, *valid_modules = NULL;
535 MonoImageOpenStatus status;
537 if ((image->module_count == 0) || (idx > image->module_count))
539 if (image->modules_loaded [idx - 1])
540 return image->modules [idx - 1];
542 file_table = &image->tables [MONO_TABLE_FILE];
543 for (i = 0; i < file_table->rows; i++) {
544 guint32 cols [MONO_FILE_SIZE];
545 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
546 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
548 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
551 t = &image->tables [MONO_TABLE_MODULEREF];
552 base_dir = g_path_get_dirname (image->name);
557 guint32 cols [MONO_MODULEREF_SIZE];
558 /* if there is no file table, we try to load the module... */
559 int valid = file_table->rows == 0;
561 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
562 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
563 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
564 /* be safe with string dups, but we could just compare string indexes */
565 if (strcmp (list_iter->data, name) == 0) {
571 module_ref = g_build_filename (base_dir, name, NULL);
572 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
573 if (image->modules [idx - 1]) {
574 mono_image_addref (image->modules [idx - 1]);
575 image->modules [idx - 1]->assembly = image->assembly;
577 if (image->modules [idx - 1]->is_module_handle)
578 mono_image_fixup_vtable (image->modules [idx - 1]);
580 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
586 image->modules_loaded [idx - 1] = TRUE;
589 g_list_free (valid_modules);
591 return image->modules [idx - 1];
595 class_key_extract (gpointer value)
597 MonoClass *class = value;
599 return GUINT_TO_POINTER (class->type_token);
603 class_next_value (gpointer value)
605 MonoClass *class = value;
607 return (gpointer*)&class->next_class_cache;
611 mono_image_init (MonoImage *image)
613 image->mempool = mono_mempool_new_size (512);
614 mono_internal_hash_table_init (&image->class_cache,
618 image->field_cache = g_hash_table_new (NULL, NULL);
620 image->typespec_cache = g_hash_table_new (NULL, NULL);
621 image->memberref_signatures = g_hash_table_new (NULL, NULL);
622 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
623 image->method_signatures = g_hash_table_new (NULL, NULL);
625 image->property_hash = mono_property_hash_new ();
626 InitializeCriticalSection (&image->lock);
627 InitializeCriticalSection (&image->szarray_cache_lock);
630 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
631 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
632 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
633 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
634 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
643 * Returns < 0 to indicate an error.
646 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
648 MonoDotNetHeader64 header64;
651 if (!image->is_module_handle)
653 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
656 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
658 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
661 /* endian swap the fields common between PE and PE+ */
662 SWAP32 (header->coff.coff_time);
663 SWAP32 (header->coff.coff_symptr);
664 SWAP32 (header->coff.coff_symcount);
665 SWAP16 (header->coff.coff_machine);
666 SWAP16 (header->coff.coff_sections);
667 SWAP16 (header->coff.coff_opt_header_size);
668 SWAP16 (header->coff.coff_attributes);
670 SWAP32 (header->pe.pe_code_size);
671 SWAP32 (header->pe.pe_uninit_data_size);
672 SWAP32 (header->pe.pe_rva_entry_point);
673 SWAP32 (header->pe.pe_rva_code_base);
674 SWAP32 (header->pe.pe_rva_data_base);
675 SWAP16 (header->pe.pe_magic);
677 /* now we are ready for the basic tests */
679 if (header->pe.pe_magic == 0x10B) {
680 offset += sizeof (MonoDotNetHeader);
681 SWAP32 (header->pe.pe_data_size);
682 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
685 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
686 SWAP32 (header->nt.pe_stack_reserve);
687 SWAP32 (header->nt.pe_stack_commit);
688 SWAP32 (header->nt.pe_heap_reserve);
689 SWAP32 (header->nt.pe_heap_commit);
690 } else if (header->pe.pe_magic == 0x20B) {
691 /* PE32+ file format */
692 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
694 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
695 offset += sizeof (MonoDotNetHeader64);
696 /* copy the fields already swapped. the last field, pe_data_size, is missing */
697 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
698 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
699 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
701 SWAP64 (header64.nt.pe_image_base);
702 header->nt.pe_image_base = header64.nt.pe_image_base;
703 SWAP64 (header64.nt.pe_stack_reserve);
704 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
705 SWAP64 (header64.nt.pe_stack_commit);
706 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
707 SWAP64 (header64.nt.pe_heap_reserve);
708 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
709 SWAP64 (header64.nt.pe_heap_commit);
710 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
712 header->nt.pe_section_align = header64.nt.pe_section_align;
713 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
714 header->nt.pe_os_major = header64.nt.pe_os_major;
715 header->nt.pe_os_minor = header64.nt.pe_os_minor;
716 header->nt.pe_user_major = header64.nt.pe_user_major;
717 header->nt.pe_user_minor = header64.nt.pe_user_minor;
718 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
719 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
720 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
721 header->nt.pe_image_size = header64.nt.pe_image_size;
722 header->nt.pe_header_size = header64.nt.pe_header_size;
723 header->nt.pe_checksum = header64.nt.pe_checksum;
724 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
725 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
726 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
727 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
729 /* copy the datadir */
730 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
735 /* MonoPEHeaderNT: not used yet */
736 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
737 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
738 SWAP16 (header->nt.pe_os_major); /* must be 4 */
739 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
740 SWAP16 (header->nt.pe_user_major);
741 SWAP16 (header->nt.pe_user_minor);
742 SWAP16 (header->nt.pe_subsys_major);
743 SWAP16 (header->nt.pe_subsys_minor);
744 SWAP32 (header->nt.pe_reserved_1);
745 SWAP32 (header->nt.pe_image_size);
746 SWAP32 (header->nt.pe_header_size);
747 SWAP32 (header->nt.pe_checksum);
748 SWAP16 (header->nt.pe_subsys_required);
749 SWAP16 (header->nt.pe_dll_flags);
750 SWAP32 (header->nt.pe_loader_flags);
751 SWAP32 (header->nt.pe_data_dir_count);
753 /* MonoDotNetHeader: mostly unused */
754 SWAPPDE (header->datadir.pe_export_table);
755 SWAPPDE (header->datadir.pe_import_table);
756 SWAPPDE (header->datadir.pe_resource_table);
757 SWAPPDE (header->datadir.pe_exception_table);
758 SWAPPDE (header->datadir.pe_certificate_table);
759 SWAPPDE (header->datadir.pe_reloc_table);
760 SWAPPDE (header->datadir.pe_debug);
761 SWAPPDE (header->datadir.pe_copyright);
762 SWAPPDE (header->datadir.pe_global_ptr);
763 SWAPPDE (header->datadir.pe_tls_table);
764 SWAPPDE (header->datadir.pe_load_config_table);
765 SWAPPDE (header->datadir.pe_bound_import);
766 SWAPPDE (header->datadir.pe_iat);
767 SWAPPDE (header->datadir.pe_delay_import_desc);
768 SWAPPDE (header->datadir.pe_cli_header);
769 SWAPPDE (header->datadir.pe_reserved);
772 if (image->is_module_handle)
773 image->raw_data_len = header->nt.pe_image_size;
780 mono_image_load_pe_data (MonoImage *image)
782 MonoCLIImageInfo *iinfo;
783 MonoDotNetHeader *header;
784 MonoMSDOSHeader msdos;
787 iinfo = image->image_info;
788 header = &iinfo->cli_header;
791 if (!image->is_module_handle)
793 if (offset + sizeof (msdos) > image->raw_data_len)
795 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
797 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
800 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
802 offset = msdos.pe_offset;
804 offset = do_load_header (image, header, offset);
809 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
811 if (header->coff.coff_machine != 0x14c)
817 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
818 * which produces binaries with 7.0. From Sergey:
820 * The reason is that MSVC7 uses traditional compile/link
821 * sequence for CIL executables, and VS.NET (and Framework
822 * SDK) includes linker version 7, that puts 7.0 in this
823 * field. That's why it's currently not possible to load VC
824 * binaries with Mono. This field is pretty much meaningless
825 * anyway (what linker?).
827 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
832 * FIXME: byte swap all addresses here for header.
835 if (!load_section_tables (image, iinfo, offset))
845 mono_image_load_cli_data (MonoImage *image)
847 MonoCLIImageInfo *iinfo;
848 MonoDotNetHeader *header;
850 iinfo = image->image_info;
851 header = &iinfo->cli_header;
853 /* Load the CLI header */
854 if (!load_cli_header (image, iinfo))
857 if (!load_metadata (image, iinfo))
864 mono_image_load_names (MonoImage *image)
866 /* modules don't have an assembly table row */
867 if (image->tables [MONO_TABLE_ASSEMBLY].rows) {
868 image->assembly_name = mono_metadata_string_heap (image,
869 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
870 0, MONO_ASSEMBLY_NAME));
873 image->module_name = mono_metadata_string_heap (image,
874 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
875 0, MONO_MODULE_NAME));
879 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
880 gboolean care_about_cli, gboolean care_about_pecoff)
882 MonoCLIImageInfo *iinfo;
883 MonoDotNetHeader *header;
885 mono_profiler_module_event (image, MONO_PROFILE_START_LOAD);
887 mono_image_init (image);
889 iinfo = image->image_info;
890 header = &iinfo->cli_header;
893 *status = MONO_IMAGE_IMAGE_INVALID;
895 if (care_about_pecoff == FALSE)
898 if (!mono_verifier_verify_pe_data (image, NULL))
901 if (!mono_image_load_pe_data (image))
904 if (care_about_cli == FALSE) {
908 if (!mono_verifier_verify_cli_data (image, NULL))
911 if (!mono_image_load_cli_data (image))
914 if (!mono_verifier_verify_table_data (image, NULL))
917 mono_image_load_names (image);
919 load_modules (image);
922 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
924 *status = MONO_IMAGE_OK;
929 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
930 mono_image_close (image);
935 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
936 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly)
938 MonoCLIImageInfo *iinfo;
942 if ((filed = mono_file_map_open (fname)) == NULL){
943 if (IS_PORTABILITY_SET) {
944 gchar *ffname = mono_portability_find_file (fname, TRUE);
946 filed = mono_file_map_open (ffname);
953 *status = MONO_IMAGE_ERROR_ERRNO;
958 image = g_new0 (MonoImage, 1);
959 image->raw_buffer_used = TRUE;
960 image->raw_data_len = mono_file_map_size (filed);
961 image->raw_data = mono_file_map (image->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &image->raw_data_handle);
962 if (!image->raw_data) {
963 mono_file_map_close (filed);
966 *status = MONO_IMAGE_IMAGE_INVALID;
969 iinfo = g_new0 (MonoCLIImageInfo, 1);
970 image->image_info = iinfo;
971 image->name = mono_path_resolve_symlinks (fname);
972 image->ref_only = refonly;
973 image->ref_count = 1;
974 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
975 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
977 mono_file_map_close (filed);
978 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
982 mono_image_loaded_full (const char *name, gboolean refonly)
985 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
988 res = g_hash_table_lookup (loaded_images, name);
989 mono_images_unlock ();
995 * @name: name of the image to load
997 * This routine ensures that the given image is loaded.
999 * Returns: the loaded MonoImage, or NULL on failure.
1002 mono_image_loaded (const char *name)
1004 return mono_image_loaded_full (name, FALSE);
1013 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1015 GuidData *data = user_data;
1021 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1026 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1029 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1033 mono_images_lock ();
1034 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1035 mono_images_unlock ();
1040 mono_image_loaded_by_guid (const char *guid)
1042 return mono_image_loaded_by_guid_full (guid, FALSE);
1046 register_image (MonoImage *image)
1049 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1051 mono_images_lock ();
1052 image2 = g_hash_table_lookup (loaded_images, image->name);
1055 /* Somebody else beat us to it */
1056 mono_image_addref (image2);
1057 mono_images_unlock ();
1058 mono_image_close (image);
1061 g_hash_table_insert (loaded_images, image->name, image);
1062 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
1063 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
1064 mono_images_unlock ();
1070 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1072 MonoCLIImageInfo *iinfo;
1076 if (!data || !data_len) {
1078 *status = MONO_IMAGE_IMAGE_INVALID;
1083 datac = g_try_malloc (data_len);
1086 *status = MONO_IMAGE_ERROR_ERRNO;
1089 memcpy (datac, data, data_len);
1092 image = g_new0 (MonoImage, 1);
1093 image->raw_data = datac;
1094 image->raw_data_len = data_len;
1095 image->raw_data_allocated = need_copy;
1096 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1097 iinfo = g_new0 (MonoCLIImageInfo, 1);
1098 image->image_info = iinfo;
1099 image->ref_only = refonly;
1101 image = do_mono_image_load (image, status, TRUE, TRUE);
1105 return register_image (image);
1109 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1111 return mono_image_open_from_data_with_name (data, data_len, need_copy, status, refonly, NULL);
1115 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1117 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1121 /* fname is not duplicated. */
1123 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1126 MonoCLIImageInfo* iinfo;
1128 image = g_new0 (MonoImage, 1);
1129 image->raw_data = (char*) module_handle;
1130 image->is_module_handle = TRUE;
1131 iinfo = g_new0 (MonoCLIImageInfo, 1);
1132 image->image_info = iinfo;
1133 image->name = fname;
1134 image->ref_count = has_entry_point ? 0 : 1;
1135 image->has_entry_point = has_entry_point;
1137 image = do_mono_image_load (image, status, TRUE, TRUE);
1141 return register_image (image);
1146 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1149 GHashTable *loaded_images;
1152 g_return_val_if_fail (fname != NULL, NULL);
1155 /* Load modules using LoadLibrary. */
1156 if (!refonly && coree_module_handle) {
1157 HMODULE module_handle;
1158 guint16 *fname_utf16;
1161 absfname = mono_path_resolve_symlinks (fname);
1164 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1165 mono_images_lock ();
1166 image = g_hash_table_lookup (loaded_images_hash, absfname);
1168 g_assert (image->is_module_handle);
1169 if (image->has_entry_point && image->ref_count == 0) {
1170 /* Increment reference count on images loaded outside of the runtime. */
1171 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1172 /* The image is already loaded because _CorDllMain removes images from the hash. */
1173 module_handle = LoadLibrary (fname_utf16);
1174 g_assert (module_handle == (HMODULE) image->raw_data);
1176 mono_image_addref (image);
1177 mono_images_unlock ();
1179 g_free (fname_utf16);
1184 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1185 module_handle = MonoLoadImage (fname_utf16);
1186 if (status && module_handle == NULL)
1187 last_error = GetLastError ();
1189 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1190 image = g_hash_table_lookup (loaded_images_hash, absfname);
1192 mono_image_addref (image);
1193 mono_images_unlock ();
1195 g_free (fname_utf16);
1197 if (module_handle == NULL) {
1201 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT)
1202 *status = MONO_IMAGE_IMAGE_INVALID;
1204 *status = MONO_IMAGE_ERROR_ERRNO;
1210 g_assert (image->is_module_handle);
1211 g_assert (image->has_entry_point);
1216 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
1220 absfname = mono_path_canonicalize (fname);
1223 * The easiest solution would be to do all the loading inside the mutex,
1224 * but that would lead to scalability problems. So we let the loading
1225 * happen outside the mutex, and if multiple threads happen to load
1226 * the same image, we discard all but the first copy.
1228 mono_images_lock ();
1229 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1230 image = g_hash_table_lookup (loaded_images, absfname);
1234 mono_image_addref (image);
1235 mono_images_unlock ();
1238 mono_images_unlock ();
1240 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly);
1244 return register_image (image);
1249 * @fname: filename that points to the module we want to open
1250 * @status: An error condition is returned in this field
1252 * Returns: An open image of type %MonoImage or NULL on error.
1253 * The caller holds a temporary reference to the returned image which should be cleared
1254 * when no longer needed by calling mono_image_close ().
1255 * if NULL, then check the value of @status for details on the error
1258 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1260 return mono_image_open_full (fname, status, FALSE);
1264 * mono_pe_file_open:
1265 * @fname: filename that points to the module we want to open
1266 * @status: An error condition is returned in this field
1268 * Returns: An open image of type %MonoImage or NULL on error. if
1269 * NULL, then check the value of @status for details on the error.
1270 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1271 * It's just a PE file loader, used for FileVersionInfo. It also does
1272 * not use the image cache.
1275 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1277 g_return_val_if_fail (fname != NULL, NULL);
1279 return(do_mono_image_open (fname, status, FALSE, TRUE, FALSE));
1283 * mono_image_open_raw
1284 * @fname: filename that points to the module we want to open
1285 * @status: An error condition is returned in this field
1287 * Returns an image without loading neither pe or cli data.
1289 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
1292 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
1294 g_return_val_if_fail (fname != NULL, NULL);
1296 return(do_mono_image_open (fname, status, FALSE, FALSE, FALSE));
1300 mono_image_fixup_vtable (MonoImage *image)
1303 MonoCLIImageInfo *iinfo;
1305 MonoVTableFixup *vtfixup;
1311 g_assert (image->is_module_handle);
1313 iinfo = image->image_info;
1314 de = &iinfo->cli_cli_header.ch_vtable_fixups;
1315 if (!de->rva || !de->size)
1317 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
1321 count = de->size / sizeof (MonoVTableFixup);
1323 if (!vtfixup->rva || !vtfixup->count)
1326 slot = mono_image_rva_map (image, vtfixup->rva);
1328 slot_type = vtfixup->type;
1329 slot_count = vtfixup->count;
1330 if (slot_type & VTFIXUP_TYPE_32BIT)
1331 while (slot_count--) {
1332 *((guint32*) slot) = (guint32) mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
1333 slot = ((guint32*) slot) + 1;
1335 else if (slot_type & VTFIXUP_TYPE_64BIT)
1336 while (slot_count--) {
1337 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
1338 slot = ((guint32*) slot) + 1;
1341 g_assert_not_reached();
1346 g_assert_not_reached();
1351 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1353 g_hash_table_destroy ((GHashTable*)val);
1358 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1360 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1365 free_remoting_wrappers (gpointer key, gpointer val, gpointer user_data)
1371 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1373 g_slist_free ((GSList*)val);
1377 * mono_image_addref:
1378 * @image: The image file we wish to add a reference to
1380 * Increases the reference count of an image.
1383 mono_image_addref (MonoImage *image)
1385 InterlockedIncrement (&image->ref_count);
1389 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1391 stream->alloc_size = stream->index = stream->offset = 0;
1392 g_free (stream->data);
1393 stream->data = NULL;
1395 g_hash_table_destroy (stream->hash);
1396 stream->hash = NULL;
1401 free_hash (GHashTable *hash)
1404 g_hash_table_destroy (hash);
1408 * Returns whether mono_image_close_finish() must be called as well.
1409 * We must unload images in two steps because clearing the domain in
1410 * SGen requires the class metadata to be intact, but we need to free
1411 * the mono_g_hash_tables in case a collection occurs during domain
1412 * unloading and the roots would trip up the GC.
1415 mono_image_close_except_pools (MonoImage *image)
1418 GHashTable *loaded_images;
1422 g_return_val_if_fail (image != NULL, FALSE);
1425 * Atomically decrement the refcount and remove ourselves from the hash tables, so
1426 * register_image () can't grab an image which is being closed.
1428 mono_images_lock ();
1430 if (InterlockedDecrement (&image->ref_count) > 0) {
1431 mono_images_unlock ();
1435 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1436 image2 = g_hash_table_lookup (loaded_images, image->name);
1437 if (image == image2) {
1438 /* This is not true if we are called from mono_image_open () */
1439 g_hash_table_remove (loaded_images, image->name);
1441 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1442 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1444 mono_images_unlock ();
1447 if (image->is_module_handle && image->has_entry_point) {
1448 mono_images_lock ();
1449 if (image->ref_count == 0) {
1450 /* Image will be closed by _CorDllMain. */
1451 FreeLibrary ((HMODULE) image->raw_data);
1452 mono_images_unlock ();
1455 mono_images_unlock ();
1459 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1461 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1463 free_list = mono_metadata_clean_for_image (image);
1466 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1467 * assemblies, so we can't release these references in mono_assembly_close () since the
1468 * MonoImage might outlive its associated MonoAssembly.
1470 if (image->references && !image->dynamic) {
1471 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
1474 for (i = 0; i < t->rows; i++) {
1475 if (image->references [i]) {
1476 if (!mono_assembly_close_except_image_pools (image->references [i]))
1477 image->references [i] = NULL;
1481 if (image->references) {
1482 g_free (image->references);
1483 image->references = NULL;
1488 mono_images_lock ();
1489 if (image->is_module_handle && !image->has_entry_point)
1490 FreeLibrary ((HMODULE) image->raw_data);
1491 mono_images_unlock ();
1494 if (image->raw_buffer_used) {
1495 if (image->raw_data != NULL)
1496 mono_file_unmap (image->raw_data, image->raw_data_handle);
1499 if (image->raw_data_allocated) {
1500 /* FIXME: do we need this? (image is disposed anyway) */
1501 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1502 MonoCLIImageInfo *ii = image->image_info;
1504 if ((image->raw_metadata > image->raw_data) &&
1505 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1506 image->raw_metadata = NULL;
1508 for (i = 0; i < ii->cli_section_count; i++)
1509 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1510 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1511 ii->cli_sections [i] = NULL;
1513 g_free (image->raw_data);
1516 if (debug_assembly_unload) {
1517 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1519 g_free (image->name);
1520 g_free (image->guid);
1521 g_free (image->version);
1522 g_free (image->files);
1525 if (image->method_cache)
1526 g_hash_table_destroy (image->method_cache);
1527 if (image->methodref_cache)
1528 g_hash_table_destroy (image->methodref_cache);
1529 mono_internal_hash_table_destroy (&image->class_cache);
1530 g_hash_table_destroy (image->field_cache);
1531 if (image->array_cache) {
1532 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1533 g_hash_table_destroy (image->array_cache);
1535 if (image->szarray_cache)
1536 g_hash_table_destroy (image->szarray_cache);
1537 if (image->ptr_cache)
1538 g_hash_table_destroy (image->ptr_cache);
1539 if (image->name_cache) {
1540 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1541 g_hash_table_destroy (image->name_cache);
1544 free_hash (image->native_wrapper_cache);
1545 free_hash (image->managed_wrapper_cache);
1546 free_hash (image->delegate_begin_invoke_cache);
1547 free_hash (image->delegate_end_invoke_cache);
1548 free_hash (image->delegate_invoke_cache);
1549 free_hash (image->delegate_abstract_invoke_cache);
1550 if (image->remoting_invoke_cache)
1551 g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
1552 free_hash (image->remoting_invoke_cache);
1553 free_hash (image->runtime_invoke_cache);
1554 free_hash (image->runtime_invoke_direct_cache);
1555 free_hash (image->runtime_invoke_vcall_cache);
1556 free_hash (image->synchronized_cache);
1557 free_hash (image->unbox_wrapper_cache);
1558 free_hash (image->cominterop_invoke_cache);
1559 free_hash (image->cominterop_wrapper_cache);
1560 free_hash (image->typespec_cache);
1561 free_hash (image->ldfld_wrapper_cache);
1562 free_hash (image->ldflda_wrapper_cache);
1563 free_hash (image->stfld_wrapper_cache);
1564 free_hash (image->isinst_cache);
1565 free_hash (image->castclass_cache);
1566 free_hash (image->proxy_isinst_cache);
1567 free_hash (image->thunk_invoke_cache);
1569 /* The ownership of signatures is not well defined */
1570 //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
1571 g_hash_table_destroy (image->memberref_signatures);
1572 //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
1573 g_hash_table_destroy (image->helper_signatures);
1574 g_hash_table_destroy (image->method_signatures);
1576 if (image->generic_class_cache)
1577 g_hash_table_destroy (image->generic_class_cache);
1579 if (image->rgctx_template_hash)
1580 g_hash_table_destroy (image->rgctx_template_hash);
1582 if (image->property_hash)
1583 mono_property_hash_destroy (image->property_hash);
1585 g_slist_free (image->reflection_info_unregister_classes);
1586 image->reflection_info_unregister_classes = free_list;
1588 if (image->interface_bitset) {
1589 mono_unload_interface_ids (image->interface_bitset);
1590 mono_bitset_free (image->interface_bitset);
1592 if (image->image_info){
1593 MonoCLIImageInfo *ii = image->image_info;
1595 if (ii->cli_section_tables)
1596 g_free (ii->cli_section_tables);
1597 if (ii->cli_sections)
1598 g_free (ii->cli_sections);
1599 g_free (image->image_info);
1602 for (i = 0; i < image->module_count; ++i) {
1603 if (image->modules [i]) {
1604 if (!mono_image_close_except_pools (image->modules [i]))
1605 image->modules [i] = NULL;
1608 if (image->modules_loaded)
1609 g_free (image->modules_loaded);
1611 DeleteCriticalSection (&image->szarray_cache_lock);
1612 DeleteCriticalSection (&image->lock);
1614 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1615 if (image->dynamic) {
1616 /* Dynamic images are GC_MALLOCed */
1617 g_free ((char*)image->module_name);
1618 mono_dynamic_image_free ((MonoDynamicImage*)image);
1621 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1627 mono_image_close_finish (MonoImage *image)
1632 for (l = image->reflection_info_unregister_classes; l; l = l->next)
1634 g_slist_free (image->reflection_info_unregister_classes);
1635 image->reflection_info_unregister_classes = NULL;
1637 if (image->references && !image->dynamic) {
1638 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
1641 for (i = 0; i < t->rows; i++) {
1642 if (image->references [i])
1643 mono_assembly_close_finish (image->references [i]);
1646 g_free (image->references);
1647 image->references = NULL;
1650 for (i = 0; i < image->module_count; ++i) {
1651 if (image->modules [i])
1652 mono_image_close_finish (image->modules [i]);
1655 g_free (image->modules);
1657 mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
1659 if (!image->dynamic) {
1660 if (debug_assembly_unload)
1661 mono_mempool_invalidate (image->mempool);
1663 mono_mempool_destroy (image->mempool);
1667 if (debug_assembly_unload)
1668 mono_mempool_invalidate (image->mempool);
1670 mono_mempool_destroy (image->mempool);
1676 * @image: The image file we wish to close
1678 * Closes an image file, deallocates all memory consumed and
1679 * unmaps all possible sections of the file
1682 mono_image_close (MonoImage *image)
1684 if (mono_image_close_except_pools (image))
1685 mono_image_close_finish (image);
1689 * mono_image_strerror:
1690 * @status: an code indicating the result from a recent operation
1692 * Returns: a string describing the error
1695 mono_image_strerror (MonoImageOpenStatus status)
1700 case MONO_IMAGE_ERROR_ERRNO:
1701 return strerror (errno);
1702 case MONO_IMAGE_IMAGE_INVALID:
1703 return "File does not contain a valid CIL image";
1704 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1705 return "An assembly was referenced, but could not be found";
1707 return "Internal error";
1711 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1712 guint32 lang_id, gunichar2 *name,
1713 MonoPEResourceDirEntry *entry,
1714 MonoPEResourceDir *root, guint32 level)
1716 gboolean is_string, is_dir;
1717 guint32 name_offset, dir_offset;
1719 /* Level 0 holds a directory entry for each type of resource
1720 * (identified by ID or name).
1722 * Level 1 holds a directory entry for each named resource
1723 * item, and each "anonymous" item of a particular type of
1726 * Level 2 holds a directory entry for each language pointing to
1729 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
1730 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
1732 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
1733 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
1738 } else if (level==1) {
1739 if (res_id != name_offset)
1743 is_string==TRUE && name!=lookup (name_offset)) {
1747 } else if (level==2) {
1748 if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
1751 g_assert_not_reached ();
1755 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1756 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1759 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1761 for(i=0; i<entries; i++) {
1762 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1765 ret=mono_image_walk_resource_tree (info, res_id,
1776 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
1777 MonoPEResourceDataEntry *res;
1779 res = g_new0 (MonoPEResourceDataEntry, 1);
1781 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
1782 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
1783 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
1784 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
1791 * mono_image_lookup_resource:
1792 * @image: the image to look up the resource in
1793 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1794 * @lang_id: The language id.
1795 * @name: the resource name to lookup.
1797 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1798 * of the given resource. The caller should free it using g_free () when no longer
1802 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1804 MonoCLIImageInfo *info;
1805 MonoDotNetHeader *header;
1806 MonoPEDatadir *datadir;
1807 MonoPEDirEntry *rsrc;
1808 MonoPEResourceDir *resource_dir;
1809 MonoPEResourceDirEntry *res_entries;
1816 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
1818 info=image->image_info;
1823 header=&info->cli_header;
1828 datadir=&header->datadir;
1833 rsrc=&datadir->pe_resource_table;
1838 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1839 if(resource_dir==NULL) {
1843 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
1844 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1846 for(i=0; i<entries; i++) {
1847 MonoPEResourceDirEntry *entry=&res_entries[i];
1850 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1851 name, entry, resource_dir,
1862 * mono_image_get_entry_point:
1863 * @image: the image where the entry point will be looked up.
1865 * Use this routine to determine the metadata token for method that
1866 * has been flagged as the entry point.
1868 * Returns: the token for the entry point method in the image
1871 mono_image_get_entry_point (MonoImage *image)
1873 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1877 * mono_image_get_resource:
1878 * @image: the image where the resource will be looked up.
1879 * @offset: The offset to add to the resource
1880 * @size: a pointer to an int where the size of the resource will be stored
1882 * This is a low-level routine that fetches a resource from the
1883 * metadata that starts at a given @offset. The @size parameter is
1884 * filled with the data field as encoded in the metadata.
1886 * Returns: the pointer to the resource whose offset is @offset.
1889 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1891 MonoCLIImageInfo *iinfo = image->image_info;
1892 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1895 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1898 data = mono_image_rva_map (image, ch->ch_resources.rva);
1903 *size = read32 (data);
1909 mono_image_load_file_for_image (MonoImage *image, int fileidx)
1911 char *base_dir, *name;
1913 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
1917 if (fileidx < 1 || fileidx > t->rows)
1920 mono_loader_lock ();
1921 if (image->files && image->files [fileidx - 1]) {
1922 mono_loader_unlock ();
1923 return image->files [fileidx - 1];
1927 image->files = g_new0 (MonoImage*, t->rows);
1929 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
1930 fname = mono_metadata_string_heap (image, fname_id);
1931 base_dir = g_path_get_dirname (image->name);
1932 name = g_build_filename (base_dir, fname, NULL);
1933 res = mono_image_open (name, NULL);
1936 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
1937 res->assembly = image->assembly;
1938 for (i = 0; i < res->module_count; ++i) {
1939 if (res->modules [i] && !res->modules [i]->assembly)
1940 res->modules [i]->assembly = image->assembly;
1943 image->files [fileidx - 1] = res;
1945 if (res->is_module_handle)
1946 mono_image_fixup_vtable (res);
1949 mono_loader_unlock ();
1956 * mono_image_get_strong_name:
1957 * @image: a MonoImage
1958 * @size: a guint32 pointer, or NULL.
1960 * If the image has a strong name, and @size is not NULL, the value
1961 * pointed to by size will have the size of the strong name.
1963 * Returns: NULL if the image does not have a strong name, or a
1964 * pointer to the public key.
1967 mono_image_get_strong_name (MonoImage *image, guint32 *size)
1969 MonoCLIImageInfo *iinfo = image->image_info;
1970 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
1973 if (!de->size || !de->rva)
1975 data = mono_image_rva_map (image, de->rva);
1984 * mono_image_strong_name_position:
1985 * @image: a MonoImage
1986 * @size: a guint32 pointer, or NULL.
1988 * If the image has a strong name, and @size is not NULL, the value
1989 * pointed to by size will have the size of the strong name.
1991 * Returns: the position within the image file where the strong name
1995 mono_image_strong_name_position (MonoImage *image, guint32 *size)
1997 MonoCLIImageInfo *iinfo = image->image_info;
1998 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2003 if (!de->size || !de->rva)
2005 pos = mono_cli_rva_image_map (image, de->rva);
2006 return pos == INVALID_ADDRESS ? 0 : pos;
2010 * mono_image_get_public_key:
2011 * @image: a MonoImage
2012 * @size: a guint32 pointer, or NULL.
2014 * This is used to obtain the public key in the @image.
2016 * If the image has a public key, and @size is not NULL, the value
2017 * pointed to by size will have the size of the public key.
2019 * Returns: NULL if the image does not have a public key, or a pointer
2020 * to the public key.
2023 mono_image_get_public_key (MonoImage *image, guint32 *size)
2028 if (image->dynamic) {
2030 *size = ((MonoDynamicImage*)image)->public_key_len;
2031 return (char*)((MonoDynamicImage*)image)->public_key;
2033 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2035 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2038 pubkey = mono_metadata_blob_heap (image, tok);
2039 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2046 * mono_image_get_name:
2047 * @name: a MonoImage
2049 * Returns: the name of the assembly.
2052 mono_image_get_name (MonoImage *image)
2054 return image->assembly_name;
2058 * mono_image_get_filename:
2059 * @image: a MonoImage
2061 * Used to get the filename that hold the actual MonoImage
2063 * Returns: the filename.
2066 mono_image_get_filename (MonoImage *image)
2072 mono_image_get_guid (MonoImage *image)
2077 const MonoTableInfo*
2078 mono_image_get_table_info (MonoImage *image, int table_id)
2080 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2082 return &image->tables [table_id];
2086 mono_image_get_table_rows (MonoImage *image, int table_id)
2088 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2090 return image->tables [table_id].rows;
2094 mono_table_info_get_rows (const MonoTableInfo *table)
2100 * mono_image_get_assembly:
2101 * @image: the MonoImage.
2103 * Use this routine to get the assembly that owns this image.
2105 * Returns: the assembly that holds this image.
2108 mono_image_get_assembly (MonoImage *image)
2110 return image->assembly;
2114 * mono_image_is_dynamic:
2115 * @image: the MonoImage
2117 * Determines if the given image was created dynamically through the
2118 * System.Reflection.Emit API
2120 * Returns: TRUE if the image was created dynamically, FALSE if not.
2123 mono_image_is_dynamic (MonoImage *image)
2125 return image->dynamic;
2129 * mono_image_has_authenticode_entry:
2130 * @image: the MonoImage
2132 * Use this routine to determine if the image has a Authenticode
2133 * Certificate Table.
2135 * Returns: TRUE if the image contains an authenticode entry in the PE
2139 mono_image_has_authenticode_entry (MonoImage *image)
2141 MonoCLIImageInfo *iinfo = image->image_info;
2142 MonoDotNetHeader *header = &iinfo->cli_header;
2143 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
2144 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
2145 return ((de->rva != 0) && (de->size > 8));
2149 mono_image_alloc (MonoImage *image, guint size)
2153 mono_perfcounters->loader_bytes += size;
2154 mono_image_lock (image);
2155 res = mono_mempool_alloc (image->mempool, size);
2156 mono_image_unlock (image);
2162 mono_image_alloc0 (MonoImage *image, guint size)
2166 mono_perfcounters->loader_bytes += size;
2167 mono_image_lock (image);
2168 res = mono_mempool_alloc0 (image->mempool, size);
2169 mono_image_unlock (image);
2175 mono_image_strdup (MonoImage *image, const char *s)
2179 mono_perfcounters->loader_bytes += strlen (s);
2180 mono_image_lock (image);
2181 res = mono_mempool_strdup (image->mempool, s);
2182 mono_image_unlock (image);
2188 g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
2192 new_list = mono_image_alloc (image, sizeof (GList));
2193 new_list->data = data;
2194 new_list->prev = list ? list->prev : NULL;
2195 new_list->next = list;
2198 new_list->prev->next = new_list;
2200 list->prev = new_list;
2206 g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
2210 new_list = mono_image_alloc (image, sizeof (GSList));
2211 new_list->data = data;
2212 new_list->next = NULL;
2214 return g_slist_concat (list, new_list);
2218 mono_image_lock (MonoImage *image)
2220 mono_locks_acquire (&image->lock, ImageDataLock);
2224 mono_image_unlock (MonoImage *image)
2226 mono_locks_release (&image->lock, ImageDataLock);
2231 * mono_image_property_lookup:
2233 * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
2235 * LOCKING: Takes the image lock
2238 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
2242 mono_image_lock (image);
2243 res = mono_property_hash_lookup (image->property_hash, subject, property);
2244 mono_image_unlock (image);
2250 * mono_image_property_insert:
2252 * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2254 * LOCKING: Takes the image lock
2257 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
2259 mono_image_lock (image);
2260 mono_property_hash_insert (image->property_hash, subject, property, value);
2261 mono_image_unlock (image);
2265 * mono_image_property_remove:
2267 * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2269 * LOCKING: Takes the image lock
2272 mono_image_property_remove (MonoImage *image, gpointer subject)
2274 mono_image_lock (image);
2275 mono_property_hash_remove_object (image->property_hash, subject);
2276 mono_image_unlock (image);