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-internal.h>
31 #include <mono/utils/mono-path.h>
32 #include <mono/utils/mono-mmap.h>
33 #include <mono/utils/mono-io-portability.h>
34 #include <mono/utils/atomic.h>
35 #include <mono/metadata/class-internals.h>
36 #include <mono/metadata/assembly.h>
37 #include <mono/metadata/object-internals.h>
38 #include <mono/metadata/security-core-clr.h>
39 #include <mono/metadata/verify-internals.h>
40 #include <mono/metadata/verify.h>
41 #include <sys/types.h>
47 #define INVALID_ADDRESS 0xffffffff
50 * Keeps track of the various assemblies loaded
52 static GHashTable *loaded_images_hash;
53 static GHashTable *loaded_images_refonly_hash;
55 static gboolean debug_assembly_unload = FALSE;
57 #define mono_images_lock() if (mutex_inited) EnterCriticalSection (&images_mutex)
58 #define mono_images_unlock() if (mutex_inited) LeaveCriticalSection (&images_mutex)
59 static gboolean mutex_inited;
60 static CRITICAL_SECTION images_mutex;
62 typedef struct ImageUnloadHook ImageUnloadHook;
63 struct ImageUnloadHook {
64 MonoImageUnloadFunc func;
68 GSList *image_unload_hooks;
71 mono_install_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data)
73 ImageUnloadHook *hook;
75 g_return_if_fail (func != NULL);
77 hook = g_new0 (ImageUnloadHook, 1);
79 hook->user_data = user_data;
80 image_unload_hooks = g_slist_prepend (image_unload_hooks, hook);
84 mono_remove_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data)
87 ImageUnloadHook *hook;
89 for (l = image_unload_hooks; l; l = l->next) {
92 if (hook->func == func && hook->user_data == user_data) {
94 image_unload_hooks = g_slist_delete_link (image_unload_hooks, l);
101 mono_image_invoke_unload_hook (MonoImage *image)
104 ImageUnloadHook *hook;
106 for (l = image_unload_hooks; l; l = l->next) {
109 hook->func (image, hook->user_data);
113 /* returns offset relative to image->raw_data */
115 mono_cli_rva_image_map (MonoImage *image, guint32 addr)
117 MonoCLIImageInfo *iinfo = image->image_info;
118 const int top = iinfo->cli_section_count;
119 MonoSectionTable *tables = iinfo->cli_section_tables;
122 for (i = 0; i < top; i++){
123 if ((addr >= tables->st_virtual_address) &&
124 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
126 if (image->is_module_handle)
129 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
133 return INVALID_ADDRESS;
137 * mono_images_rva_map:
138 * @image: a MonoImage
139 * @addr: relative virtual address (RVA)
141 * This is a low-level routine used by the runtime to map relative
142 * virtual address (RVA) into their location in memory.
144 * Returns: the address in memory for the given RVA, or NULL if the
145 * RVA is not valid for this image.
148 mono_image_rva_map (MonoImage *image, guint32 addr)
150 MonoCLIImageInfo *iinfo = image->image_info;
151 const int top = iinfo->cli_section_count;
152 MonoSectionTable *tables = iinfo->cli_section_tables;
155 for (i = 0; i < top; i++){
156 if ((addr >= tables->st_virtual_address) &&
157 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
158 if (!iinfo->cli_sections [i]) {
159 if (!mono_image_ensure_section_idx (image, i))
163 if (image->is_module_handle)
164 return image->raw_data + addr;
166 return (char*)iinfo->cli_sections [i] +
167 (addr - tables->st_virtual_address);
177 * Initialize the global variables used by this module.
180 mono_images_init (void)
182 InitializeCriticalSection (&images_mutex);
184 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
185 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
187 debug_assembly_unload = g_getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
193 * mono_images_cleanup:
195 * Free all resources used by this module.
198 mono_images_cleanup (void)
203 DeleteCriticalSection (&images_mutex);
205 g_hash_table_iter_init (&iter, loaded_images_hash);
206 while (g_hash_table_iter_next (&iter, NULL, (void**)&image))
207 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly image '%s' still loaded at shutdown.", image->name);
209 g_hash_table_destroy (loaded_images_hash);
210 g_hash_table_destroy (loaded_images_refonly_hash);
212 mutex_inited = FALSE;
216 * mono_image_ensure_section_idx:
217 * @image: The image we are operating on
218 * @section: section number that we will load/map into memory
220 * This routine makes sure that we have an in-memory copy of
221 * an image section (.text, .rsrc, .data).
223 * Returns: TRUE on success
226 mono_image_ensure_section_idx (MonoImage *image, int section)
228 MonoCLIImageInfo *iinfo = image->image_info;
229 MonoSectionTable *sect;
232 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
234 if (iinfo->cli_sections [section] != NULL)
237 sect = &iinfo->cli_section_tables [section];
239 writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
241 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
244 if (image->is_module_handle)
245 iinfo->cli_sections [section] = image->raw_data + sect->st_virtual_address;
248 /* FIXME: we ignore the writable flag since we don't patch the binary */
249 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
254 * mono_image_ensure_section:
255 * @image: The image we are operating on
256 * @section: section name that we will load/map into memory
258 * This routine makes sure that we have an in-memory copy of
259 * an image section (.text, .rsrc, .data).
261 * Returns: TRUE on success
264 mono_image_ensure_section (MonoImage *image, const char *section)
266 MonoCLIImageInfo *ii = image->image_info;
269 for (i = 0; i < ii->cli_section_count; i++){
270 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
273 return mono_image_ensure_section_idx (image, i);
279 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
281 const int top = iinfo->cli_header.coff.coff_sections;
284 iinfo->cli_section_count = top;
285 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
286 iinfo->cli_sections = g_new0 (void *, top);
288 for (i = 0; i < top; i++){
289 MonoSectionTable *t = &iinfo->cli_section_tables [i];
291 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
293 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
294 offset += sizeof (MonoSectionTable);
296 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
297 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
298 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
299 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
300 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
301 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
302 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
303 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
304 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
305 t->st_flags = GUINT32_FROM_LE (t->st_flags);
307 /* consistency checks here */
314 load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
318 offset = mono_cli_rva_image_map (image, iinfo->cli_header.datadir.pe_cli_header.rva);
319 if (offset == INVALID_ADDRESS)
322 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
324 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
326 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
327 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
328 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
329 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
330 SWAP32 (iinfo->cli_cli_header.ch_size);
331 SWAP32 (iinfo->cli_cli_header.ch_flags);
332 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
333 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
334 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
335 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
336 SWAPPDE (iinfo->cli_cli_header.ch_resources);
337 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
338 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
339 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
340 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
341 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
342 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
343 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
344 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
345 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
346 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
347 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
348 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
349 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
354 /* Catch new uses of the fields that are supposed to be zero */
356 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
357 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
358 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
359 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
360 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
361 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
362 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
363 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
364 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
367 * No need to scare people who are testing this, I am just
368 * labelling this as a LAMESPEC
370 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
378 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
380 guint32 offset, size;
386 offset = mono_cli_rva_image_map (image, iinfo->cli_cli_header.ch_metadata.rva);
387 if (offset == INVALID_ADDRESS)
390 size = iinfo->cli_cli_header.ch_metadata.size;
392 if (offset + size > image->raw_data_len)
394 image->raw_metadata = image->raw_data + offset;
396 /* 24.2.1: Metadata root starts here */
397 ptr = image->raw_metadata;
399 if (strncmp (ptr, "BSJB", 4) == 0){
400 guint32 version_string_len;
403 image->md_version_major = read16 (ptr);
405 image->md_version_minor = read16 (ptr);
408 version_string_len = read32 (ptr);
410 image->version = g_strndup (ptr, version_string_len);
411 ptr += version_string_len;
412 pad = ptr - image->raw_metadata;
414 ptr += 4 - (pad % 4);
418 /* skip over flags */
421 streams = read16 (ptr);
424 for (i = 0; i < streams; i++){
425 if (strncmp (ptr + 8, "#~", 3) == 0){
426 image->heap_tables.data = image->raw_metadata + read32 (ptr);
427 image->heap_tables.size = read32 (ptr + 4);
429 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
430 image->heap_strings.data = image->raw_metadata + read32 (ptr);
431 image->heap_strings.size = read32 (ptr + 4);
433 } else if (strncmp (ptr + 8, "#US", 4) == 0){
434 image->heap_us.data = image->raw_metadata + read32 (ptr);
435 image->heap_us.size = read32 (ptr + 4);
437 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
438 image->heap_blob.data = image->raw_metadata + read32 (ptr);
439 image->heap_blob.size = read32 (ptr + 4);
441 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
442 image->heap_guid.data = image->raw_metadata + read32 (ptr);
443 image->heap_guid.size = read32 (ptr + 4);
445 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
446 image->heap_tables.data = image->raw_metadata + read32 (ptr);
447 image->heap_tables.size = read32 (ptr + 4);
449 image->uncompressed_metadata = TRUE;
450 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);
452 g_message ("Unknown heap type: %s\n", ptr + 8);
453 ptr += 8 + strlen (ptr + 8) + 1;
455 pad = ptr - image->raw_metadata;
457 ptr += 4 - (pad % 4);
460 g_assert (image->heap_guid.data);
461 g_assert (image->heap_guid.size >= 16);
463 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
469 * Load representation of logical metadata tables, from the "#~" stream
472 load_tables (MonoImage *image)
474 const char *heap_tables = image->heap_tables.data;
476 guint64 valid_mask, sorted_mask;
477 int valid = 0, table;
480 heap_sizes = heap_tables [6];
481 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
482 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
483 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
485 valid_mask = read64 (heap_tables + 8);
486 sorted_mask = read64 (heap_tables + 16);
487 rows = (const guint32 *) (heap_tables + 24);
489 for (table = 0; table < 64; table++){
490 if ((valid_mask & ((guint64) 1 << table)) == 0){
491 if (table > MONO_TABLE_LAST)
493 image->tables [table].rows = 0;
496 if (table > MONO_TABLE_LAST) {
497 g_warning("bits in valid must be zero above 0x2d (II - 23.1.6)");
499 image->tables [table].rows = read32 (rows);
501 /*if ((sorted_mask & ((guint64) 1 << table)) == 0){
502 g_print ("table %s (0x%02x) is sorted\n", mono_meta_table_name (table), table);
508 image->tables_base = (heap_tables + 24) + (4 * valid);
510 /* They must be the same */
511 g_assert ((const void *) image->tables_base == (const void *) rows);
513 mono_metadata_compute_table_bases (image);
518 load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
520 if (!load_metadata_ptrs (image, iinfo))
523 return load_tables (image);
527 mono_image_check_for_module_cctor (MonoImage *image)
529 MonoTableInfo *t, *mt;
530 t = &image->tables [MONO_TABLE_TYPEDEF];
531 mt = &image->tables [MONO_TABLE_METHOD];
532 if (image->dynamic) {
534 image->checked_module_cctor = TRUE;
538 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
539 const char *name = mono_metadata_string_heap (image, nameidx);
540 if (strcmp (name, "<Module>") == 0) {
541 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
544 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
546 last_method = mt->rows;
547 for (; first_method < last_method; first_method++) {
548 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
549 name = mono_metadata_string_heap (image, nameidx);
550 if (strcmp (name, ".cctor") == 0) {
551 image->has_module_cctor = TRUE;
552 image->checked_module_cctor = TRUE;
558 image->has_module_cctor = FALSE;
559 image->checked_module_cctor = TRUE;
563 load_modules (MonoImage *image)
570 t = &image->tables [MONO_TABLE_MODULEREF];
571 image->modules = g_new0 (MonoImage *, t->rows);
572 image->modules_loaded = g_new0 (gboolean, t->rows);
573 image->module_count = t->rows;
577 * mono_image_load_module:
579 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
580 * it cannot be loaded.
583 mono_image_load_module (MonoImage *image, int idx)
586 MonoTableInfo *file_table;
589 gboolean refonly = image->ref_only;
590 GList *list_iter, *valid_modules = NULL;
591 MonoImageOpenStatus status;
593 if ((image->module_count == 0) || (idx > image->module_count || idx <= 0))
595 if (image->modules_loaded [idx - 1])
596 return image->modules [idx - 1];
598 file_table = &image->tables [MONO_TABLE_FILE];
599 for (i = 0; i < file_table->rows; i++) {
600 guint32 cols [MONO_FILE_SIZE];
601 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
602 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
604 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
607 t = &image->tables [MONO_TABLE_MODULEREF];
608 base_dir = g_path_get_dirname (image->name);
613 guint32 cols [MONO_MODULEREF_SIZE];
614 /* if there is no file table, we try to load the module... */
615 int valid = file_table->rows == 0;
617 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
618 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
619 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
620 /* be safe with string dups, but we could just compare string indexes */
621 if (strcmp (list_iter->data, name) == 0) {
627 module_ref = g_build_filename (base_dir, name, NULL);
628 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
629 if (image->modules [idx - 1]) {
630 mono_image_addref (image->modules [idx - 1]);
631 image->modules [idx - 1]->assembly = image->assembly;
633 if (image->modules [idx - 1]->is_module_handle)
634 mono_image_fixup_vtable (image->modules [idx - 1]);
636 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
642 image->modules_loaded [idx - 1] = TRUE;
645 g_list_free (valid_modules);
647 return image->modules [idx - 1];
651 class_key_extract (gpointer value)
653 MonoClass *class = value;
655 return GUINT_TO_POINTER (class->type_token);
659 class_next_value (gpointer value)
661 MonoClass *class = value;
663 return (gpointer*)&class->next_class_cache;
667 mono_image_init (MonoImage *image)
669 image->mempool = mono_mempool_new_size (512);
670 mono_internal_hash_table_init (&image->class_cache,
674 image->field_cache = g_hash_table_new (NULL, NULL);
676 image->typespec_cache = g_hash_table_new (NULL, NULL);
677 image->memberref_signatures = g_hash_table_new (NULL, NULL);
678 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
679 image->method_signatures = g_hash_table_new (NULL, NULL);
681 image->property_hash = mono_property_hash_new ();
682 InitializeCriticalSection (&image->lock);
683 InitializeCriticalSection (&image->szarray_cache_lock);
686 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
687 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
688 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
689 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
690 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
699 * Returns < 0 to indicate an error.
702 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
704 MonoDotNetHeader64 header64;
707 if (!image->is_module_handle)
709 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
712 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
714 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
717 /* endian swap the fields common between PE and PE+ */
718 SWAP32 (header->coff.coff_time);
719 SWAP32 (header->coff.coff_symptr);
720 SWAP32 (header->coff.coff_symcount);
721 SWAP16 (header->coff.coff_machine);
722 SWAP16 (header->coff.coff_sections);
723 SWAP16 (header->coff.coff_opt_header_size);
724 SWAP16 (header->coff.coff_attributes);
726 SWAP32 (header->pe.pe_code_size);
727 SWAP32 (header->pe.pe_uninit_data_size);
728 SWAP32 (header->pe.pe_rva_entry_point);
729 SWAP32 (header->pe.pe_rva_code_base);
730 SWAP32 (header->pe.pe_rva_data_base);
731 SWAP16 (header->pe.pe_magic);
733 /* now we are ready for the basic tests */
735 if (header->pe.pe_magic == 0x10B) {
736 offset += sizeof (MonoDotNetHeader);
737 SWAP32 (header->pe.pe_data_size);
738 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
741 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
742 SWAP32 (header->nt.pe_stack_reserve);
743 SWAP32 (header->nt.pe_stack_commit);
744 SWAP32 (header->nt.pe_heap_reserve);
745 SWAP32 (header->nt.pe_heap_commit);
746 } else if (header->pe.pe_magic == 0x20B) {
747 /* PE32+ file format */
748 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
750 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
751 offset += sizeof (MonoDotNetHeader64);
752 /* copy the fields already swapped. the last field, pe_data_size, is missing */
753 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
754 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
755 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
757 SWAP64 (header64.nt.pe_image_base);
758 header->nt.pe_image_base = header64.nt.pe_image_base;
759 SWAP64 (header64.nt.pe_stack_reserve);
760 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
761 SWAP64 (header64.nt.pe_stack_commit);
762 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
763 SWAP64 (header64.nt.pe_heap_reserve);
764 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
765 SWAP64 (header64.nt.pe_heap_commit);
766 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
768 header->nt.pe_section_align = header64.nt.pe_section_align;
769 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
770 header->nt.pe_os_major = header64.nt.pe_os_major;
771 header->nt.pe_os_minor = header64.nt.pe_os_minor;
772 header->nt.pe_user_major = header64.nt.pe_user_major;
773 header->nt.pe_user_minor = header64.nt.pe_user_minor;
774 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
775 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
776 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
777 header->nt.pe_image_size = header64.nt.pe_image_size;
778 header->nt.pe_header_size = header64.nt.pe_header_size;
779 header->nt.pe_checksum = header64.nt.pe_checksum;
780 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
781 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
782 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
783 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
785 /* copy the datadir */
786 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
791 /* MonoPEHeaderNT: not used yet */
792 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
793 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
794 SWAP16 (header->nt.pe_os_major); /* must be 4 */
795 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
796 SWAP16 (header->nt.pe_user_major);
797 SWAP16 (header->nt.pe_user_minor);
798 SWAP16 (header->nt.pe_subsys_major);
799 SWAP16 (header->nt.pe_subsys_minor);
800 SWAP32 (header->nt.pe_reserved_1);
801 SWAP32 (header->nt.pe_image_size);
802 SWAP32 (header->nt.pe_header_size);
803 SWAP32 (header->nt.pe_checksum);
804 SWAP16 (header->nt.pe_subsys_required);
805 SWAP16 (header->nt.pe_dll_flags);
806 SWAP32 (header->nt.pe_loader_flags);
807 SWAP32 (header->nt.pe_data_dir_count);
809 /* MonoDotNetHeader: mostly unused */
810 SWAPPDE (header->datadir.pe_export_table);
811 SWAPPDE (header->datadir.pe_import_table);
812 SWAPPDE (header->datadir.pe_resource_table);
813 SWAPPDE (header->datadir.pe_exception_table);
814 SWAPPDE (header->datadir.pe_certificate_table);
815 SWAPPDE (header->datadir.pe_reloc_table);
816 SWAPPDE (header->datadir.pe_debug);
817 SWAPPDE (header->datadir.pe_copyright);
818 SWAPPDE (header->datadir.pe_global_ptr);
819 SWAPPDE (header->datadir.pe_tls_table);
820 SWAPPDE (header->datadir.pe_load_config_table);
821 SWAPPDE (header->datadir.pe_bound_import);
822 SWAPPDE (header->datadir.pe_iat);
823 SWAPPDE (header->datadir.pe_delay_import_desc);
824 SWAPPDE (header->datadir.pe_cli_header);
825 SWAPPDE (header->datadir.pe_reserved);
828 if (image->is_module_handle)
829 image->raw_data_len = header->nt.pe_image_size;
836 mono_image_load_pe_data (MonoImage *image)
838 MonoCLIImageInfo *iinfo;
839 MonoDotNetHeader *header;
840 MonoMSDOSHeader msdos;
843 iinfo = image->image_info;
844 header = &iinfo->cli_header;
847 if (!image->is_module_handle)
849 if (offset + sizeof (msdos) > image->raw_data_len)
851 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
853 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
856 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
858 offset = msdos.pe_offset;
860 offset = do_load_header (image, header, offset);
865 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
867 if (header->coff.coff_machine != 0x14c)
873 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
874 * which produces binaries with 7.0. From Sergey:
876 * The reason is that MSVC7 uses traditional compile/link
877 * sequence for CIL executables, and VS.NET (and Framework
878 * SDK) includes linker version 7, that puts 7.0 in this
879 * field. That's why it's currently not possible to load VC
880 * binaries with Mono. This field is pretty much meaningless
881 * anyway (what linker?).
883 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
888 * FIXME: byte swap all addresses here for header.
891 if (!load_section_tables (image, iinfo, offset))
901 mono_image_load_cli_data (MonoImage *image)
903 MonoCLIImageInfo *iinfo;
904 MonoDotNetHeader *header;
906 iinfo = image->image_info;
907 header = &iinfo->cli_header;
909 /* Load the CLI header */
910 if (!load_cli_header (image, iinfo))
913 if (!load_metadata (image, iinfo))
920 mono_image_load_names (MonoImage *image)
922 /* modules don't have an assembly table row */
923 if (image->tables [MONO_TABLE_ASSEMBLY].rows) {
924 image->assembly_name = mono_metadata_string_heap (image,
925 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
926 0, MONO_ASSEMBLY_NAME));
929 image->module_name = mono_metadata_string_heap (image,
930 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
931 0, MONO_MODULE_NAME));
935 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
936 gboolean care_about_cli, gboolean care_about_pecoff)
938 MonoCLIImageInfo *iinfo;
939 MonoDotNetHeader *header;
940 GSList *errors = NULL;
942 mono_profiler_module_event (image, MONO_PROFILE_START_LOAD);
944 mono_image_init (image);
946 iinfo = image->image_info;
947 header = &iinfo->cli_header;
950 *status = MONO_IMAGE_IMAGE_INVALID;
952 if (care_about_pecoff == FALSE)
955 if (!mono_verifier_verify_pe_data (image, &errors))
958 if (!mono_image_load_pe_data (image))
961 if (care_about_cli == FALSE) {
965 if (!mono_verifier_verify_cli_data (image, &errors))
968 if (!mono_image_load_cli_data (image))
971 if (!mono_verifier_verify_table_data (image, &errors))
974 mono_image_load_names (image);
976 load_modules (image);
979 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
981 *status = MONO_IMAGE_OK;
987 MonoVerifyInfo *info = errors->data;
988 g_warning ("Could not load image %s due to %s", image->name, info->message);
989 mono_free_verify_list (errors);
991 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
992 mono_image_close (image);
997 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
998 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly)
1000 MonoCLIImageInfo *iinfo;
1004 if ((filed = mono_file_map_open (fname)) == NULL){
1005 if (IS_PORTABILITY_SET) {
1006 gchar *ffname = mono_portability_find_file (fname, TRUE);
1008 filed = mono_file_map_open (ffname);
1013 if (filed == NULL) {
1015 *status = MONO_IMAGE_ERROR_ERRNO;
1020 image = g_new0 (MonoImage, 1);
1021 image->raw_buffer_used = TRUE;
1022 image->raw_data_len = mono_file_map_size (filed);
1023 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);
1024 #if defined(HAVE_MMAP) && !defined (HOST_WIN32)
1025 if (!image->raw_data) {
1026 image->fileio_used = TRUE;
1027 image->raw_data = mono_file_map_fileio (image->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &image->raw_data_handle);
1030 if (!image->raw_data) {
1031 mono_file_map_close (filed);
1034 *status = MONO_IMAGE_IMAGE_INVALID;
1037 iinfo = g_new0 (MonoCLIImageInfo, 1);
1038 image->image_info = iinfo;
1039 image->name = mono_path_resolve_symlinks (fname);
1040 image->ref_only = refonly;
1041 image->ref_count = 1;
1042 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
1043 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
1045 mono_file_map_close (filed);
1046 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
1050 mono_image_loaded_full (const char *name, gboolean refonly)
1053 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1055 mono_images_lock ();
1056 res = g_hash_table_lookup (loaded_images, name);
1057 mono_images_unlock ();
1062 * mono_image_loaded:
1063 * @name: name of the image to load
1065 * This routine ensures that the given image is loaded.
1067 * Returns: the loaded MonoImage, or NULL on failure.
1070 mono_image_loaded (const char *name)
1072 return mono_image_loaded_full (name, FALSE);
1081 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1083 GuidData *data = user_data;
1089 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1094 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1097 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1101 mono_images_lock ();
1102 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1103 mono_images_unlock ();
1108 mono_image_loaded_by_guid (const char *guid)
1110 return mono_image_loaded_by_guid_full (guid, FALSE);
1114 register_image (MonoImage *image)
1117 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1119 mono_images_lock ();
1120 image2 = g_hash_table_lookup (loaded_images, image->name);
1123 /* Somebody else beat us to it */
1124 mono_image_addref (image2);
1125 mono_images_unlock ();
1126 mono_image_close (image);
1129 g_hash_table_insert (loaded_images, image->name, image);
1130 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
1131 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
1132 mono_images_unlock ();
1138 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1140 MonoCLIImageInfo *iinfo;
1144 if (!data || !data_len) {
1146 *status = MONO_IMAGE_IMAGE_INVALID;
1151 datac = g_try_malloc (data_len);
1154 *status = MONO_IMAGE_ERROR_ERRNO;
1157 memcpy (datac, data, data_len);
1160 image = g_new0 (MonoImage, 1);
1161 image->raw_data = datac;
1162 image->raw_data_len = data_len;
1163 image->raw_data_allocated = need_copy;
1164 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1165 iinfo = g_new0 (MonoCLIImageInfo, 1);
1166 image->image_info = iinfo;
1167 image->ref_only = refonly;
1169 image = do_mono_image_load (image, status, TRUE, TRUE);
1173 return register_image (image);
1177 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1179 return mono_image_open_from_data_with_name (data, data_len, need_copy, status, refonly, NULL);
1183 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1185 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1189 /* fname is not duplicated. */
1191 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1194 MonoCLIImageInfo* iinfo;
1196 image = g_new0 (MonoImage, 1);
1197 image->raw_data = (char*) module_handle;
1198 image->is_module_handle = TRUE;
1199 iinfo = g_new0 (MonoCLIImageInfo, 1);
1200 image->image_info = iinfo;
1201 image->name = fname;
1202 image->ref_count = has_entry_point ? 0 : 1;
1203 image->has_entry_point = has_entry_point;
1205 image = do_mono_image_load (image, status, TRUE, TRUE);
1209 return register_image (image);
1214 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1217 GHashTable *loaded_images;
1220 g_return_val_if_fail (fname != NULL, NULL);
1223 /* Load modules using LoadLibrary. */
1224 if (!refonly && coree_module_handle) {
1225 HMODULE module_handle;
1226 guint16 *fname_utf16;
1229 absfname = mono_path_resolve_symlinks (fname);
1232 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1233 mono_images_lock ();
1234 image = g_hash_table_lookup (loaded_images_hash, absfname);
1236 g_assert (image->is_module_handle);
1237 if (image->has_entry_point && image->ref_count == 0) {
1238 /* Increment reference count on images loaded outside of the runtime. */
1239 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1240 /* The image is already loaded because _CorDllMain removes images from the hash. */
1241 module_handle = LoadLibrary (fname_utf16);
1242 g_assert (module_handle == (HMODULE) image->raw_data);
1244 mono_image_addref (image);
1245 mono_images_unlock ();
1247 g_free (fname_utf16);
1252 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1253 module_handle = MonoLoadImage (fname_utf16);
1254 if (status && module_handle == NULL)
1255 last_error = GetLastError ();
1257 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1258 image = g_hash_table_lookup (loaded_images_hash, absfname);
1260 mono_image_addref (image);
1261 mono_images_unlock ();
1263 g_free (fname_utf16);
1265 if (module_handle == NULL) {
1269 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT)
1270 *status = MONO_IMAGE_IMAGE_INVALID;
1272 if (last_error == ERROR_FILE_NOT_FOUND || last_error == ERROR_PATH_NOT_FOUND)
1282 g_assert (image->is_module_handle);
1283 g_assert (image->has_entry_point);
1288 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
1292 absfname = mono_path_canonicalize (fname);
1295 * The easiest solution would be to do all the loading inside the mutex,
1296 * but that would lead to scalability problems. So we let the loading
1297 * happen outside the mutex, and if multiple threads happen to load
1298 * the same image, we discard all but the first copy.
1300 mono_images_lock ();
1301 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1302 image = g_hash_table_lookup (loaded_images, absfname);
1306 mono_image_addref (image);
1307 mono_images_unlock ();
1310 mono_images_unlock ();
1312 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly);
1316 return register_image (image);
1321 * @fname: filename that points to the module we want to open
1322 * @status: An error condition is returned in this field
1324 * Returns: An open image of type %MonoImage or NULL on error.
1325 * The caller holds a temporary reference to the returned image which should be cleared
1326 * when no longer needed by calling mono_image_close ().
1327 * if NULL, then check the value of @status for details on the error
1330 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1332 return mono_image_open_full (fname, status, FALSE);
1336 * mono_pe_file_open:
1337 * @fname: filename that points to the module we want to open
1338 * @status: An error condition is returned in this field
1340 * Returns: An open image of type %MonoImage or NULL on error. if
1341 * NULL, then check the value of @status for details on the error.
1342 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1343 * It's just a PE file loader, used for FileVersionInfo. It also does
1344 * not use the image cache.
1347 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1349 g_return_val_if_fail (fname != NULL, NULL);
1351 return(do_mono_image_open (fname, status, FALSE, TRUE, FALSE));
1355 * mono_image_open_raw
1356 * @fname: filename that points to the module we want to open
1357 * @status: An error condition is returned in this field
1359 * Returns an image without loading neither pe or cli data.
1361 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
1364 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
1366 g_return_val_if_fail (fname != NULL, NULL);
1368 return(do_mono_image_open (fname, status, FALSE, FALSE, FALSE));
1372 mono_image_fixup_vtable (MonoImage *image)
1375 MonoCLIImageInfo *iinfo;
1377 MonoVTableFixup *vtfixup;
1383 g_assert (image->is_module_handle);
1385 iinfo = image->image_info;
1386 de = &iinfo->cli_cli_header.ch_vtable_fixups;
1387 if (!de->rva || !de->size)
1389 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
1393 count = de->size / sizeof (MonoVTableFixup);
1395 if (!vtfixup->rva || !vtfixup->count)
1398 slot = mono_image_rva_map (image, vtfixup->rva);
1400 slot_type = vtfixup->type;
1401 slot_count = vtfixup->count;
1402 if (slot_type & VTFIXUP_TYPE_32BIT)
1403 while (slot_count--) {
1404 *((guint32*) slot) = (guint32) mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
1405 slot = ((guint32*) slot) + 1;
1407 else if (slot_type & VTFIXUP_TYPE_64BIT)
1408 while (slot_count--) {
1409 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
1410 slot = ((guint32*) slot) + 1;
1413 g_assert_not_reached();
1418 g_assert_not_reached();
1423 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1425 g_hash_table_destroy ((GHashTable*)val);
1430 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1432 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1437 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1439 g_slist_free ((GSList*)val);
1443 * mono_image_addref:
1444 * @image: The image file we wish to add a reference to
1446 * Increases the reference count of an image.
1449 mono_image_addref (MonoImage *image)
1451 InterlockedIncrement (&image->ref_count);
1455 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1457 stream->alloc_size = stream->index = stream->offset = 0;
1458 g_free (stream->data);
1459 stream->data = NULL;
1461 g_hash_table_destroy (stream->hash);
1462 stream->hash = NULL;
1467 free_hash (GHashTable *hash)
1470 g_hash_table_destroy (hash);
1474 * Returns whether mono_image_close_finish() must be called as well.
1475 * We must unload images in two steps because clearing the domain in
1476 * SGen requires the class metadata to be intact, but we need to free
1477 * the mono_g_hash_tables in case a collection occurs during domain
1478 * unloading and the roots would trip up the GC.
1481 mono_image_close_except_pools (MonoImage *image)
1484 GHashTable *loaded_images;
1488 g_return_val_if_fail (image != NULL, FALSE);
1491 * Atomically decrement the refcount and remove ourselves from the hash tables, so
1492 * register_image () can't grab an image which is being closed.
1494 mono_images_lock ();
1496 if (InterlockedDecrement (&image->ref_count) > 0) {
1497 mono_images_unlock ();
1501 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1502 image2 = g_hash_table_lookup (loaded_images, image->name);
1503 if (image == image2) {
1504 /* This is not true if we are called from mono_image_open () */
1505 g_hash_table_remove (loaded_images, image->name);
1507 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1508 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1510 mono_images_unlock ();
1513 if (image->is_module_handle && image->has_entry_point) {
1514 mono_images_lock ();
1515 if (image->ref_count == 0) {
1516 /* Image will be closed by _CorDllMain. */
1517 FreeLibrary ((HMODULE) image->raw_data);
1518 mono_images_unlock ();
1521 mono_images_unlock ();
1525 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1527 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1529 mono_image_invoke_unload_hook (image);
1531 free_list = mono_metadata_clean_for_image (image);
1534 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1535 * assemblies, so we can't release these references in mono_assembly_close () since the
1536 * MonoImage might outlive its associated MonoAssembly.
1538 if (image->references && !image->dynamic) {
1539 for (i = 0; i < image->nreferences; i++) {
1540 if (image->references [i] && image->references [i] != REFERENCE_MISSING) {
1541 if (!mono_assembly_close_except_image_pools (image->references [i]))
1542 image->references [i] = NULL;
1546 if (image->references) {
1547 g_free (image->references);
1548 image->references = NULL;
1553 mono_images_lock ();
1554 if (image->is_module_handle && !image->has_entry_point)
1555 FreeLibrary ((HMODULE) image->raw_data);
1556 mono_images_unlock ();
1559 if (image->raw_buffer_used) {
1560 if (image->raw_data != NULL) {
1562 if (image->fileio_used)
1563 mono_file_unmap_fileio (image->raw_data, image->raw_data_handle);
1566 mono_file_unmap (image->raw_data, image->raw_data_handle);
1570 if (image->raw_data_allocated) {
1571 /* FIXME: do we need this? (image is disposed anyway) */
1572 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1573 MonoCLIImageInfo *ii = image->image_info;
1575 if ((image->raw_metadata > image->raw_data) &&
1576 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1577 image->raw_metadata = NULL;
1579 for (i = 0; i < ii->cli_section_count; i++)
1580 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1581 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1582 ii->cli_sections [i] = NULL;
1584 g_free (image->raw_data);
1587 if (debug_assembly_unload) {
1588 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1590 g_free (image->name);
1591 g_free (image->guid);
1592 g_free (image->version);
1593 g_free (image->files);
1596 if (image->method_cache)
1597 g_hash_table_destroy (image->method_cache);
1598 if (image->methodref_cache)
1599 g_hash_table_destroy (image->methodref_cache);
1600 mono_internal_hash_table_destroy (&image->class_cache);
1601 g_hash_table_destroy (image->field_cache);
1602 if (image->array_cache) {
1603 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1604 g_hash_table_destroy (image->array_cache);
1606 if (image->szarray_cache)
1607 g_hash_table_destroy (image->szarray_cache);
1608 if (image->ptr_cache)
1609 g_hash_table_destroy (image->ptr_cache);
1610 if (image->name_cache) {
1611 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1612 g_hash_table_destroy (image->name_cache);
1615 free_hash (image->native_wrapper_cache);
1616 free_hash (image->managed_wrapper_cache);
1617 free_hash (image->delegate_begin_invoke_cache);
1618 free_hash (image->delegate_end_invoke_cache);
1619 free_hash (image->delegate_invoke_cache);
1620 free_hash (image->delegate_abstract_invoke_cache);
1621 free_hash (image->delegate_bound_static_invoke_cache);
1622 free_hash (image->delegate_invoke_generic_cache);
1623 free_hash (image->delegate_begin_invoke_generic_cache);
1624 free_hash (image->delegate_end_invoke_generic_cache);
1625 free_hash (image->synchronized_generic_cache);
1626 free_hash (image->remoting_invoke_cache);
1627 free_hash (image->runtime_invoke_cache);
1628 free_hash (image->runtime_invoke_direct_cache);
1629 free_hash (image->runtime_invoke_vcall_cache);
1630 free_hash (image->synchronized_cache);
1631 free_hash (image->unbox_wrapper_cache);
1632 free_hash (image->cominterop_invoke_cache);
1633 free_hash (image->cominterop_wrapper_cache);
1634 free_hash (image->typespec_cache);
1635 free_hash (image->ldfld_wrapper_cache);
1636 free_hash (image->ldflda_wrapper_cache);
1637 free_hash (image->stfld_wrapper_cache);
1638 free_hash (image->isinst_cache);
1639 free_hash (image->castclass_cache);
1640 free_hash (image->proxy_isinst_cache);
1641 free_hash (image->thunk_invoke_cache);
1642 free_hash (image->var_cache_slow);
1643 free_hash (image->mvar_cache_slow);
1644 free_hash (image->wrapper_param_names);
1645 free_hash (image->native_wrapper_aot_cache);
1646 free_hash (image->pinvoke_scopes);
1647 free_hash (image->pinvoke_scope_filenames);
1649 /* The ownership of signatures is not well defined */
1650 //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
1651 g_hash_table_destroy (image->memberref_signatures);
1652 //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
1653 g_hash_table_destroy (image->helper_signatures);
1654 g_hash_table_destroy (image->method_signatures);
1656 if (image->rgctx_template_hash)
1657 g_hash_table_destroy (image->rgctx_template_hash);
1659 if (image->property_hash)
1660 mono_property_hash_destroy (image->property_hash);
1662 g_slist_free (image->reflection_info_unregister_classes);
1663 image->reflection_info_unregister_classes = free_list;
1665 if (image->interface_bitset) {
1666 mono_unload_interface_ids (image->interface_bitset);
1667 mono_bitset_free (image->interface_bitset);
1669 if (image->image_info){
1670 MonoCLIImageInfo *ii = image->image_info;
1672 if (ii->cli_section_tables)
1673 g_free (ii->cli_section_tables);
1674 if (ii->cli_sections)
1675 g_free (ii->cli_sections);
1676 g_free (image->image_info);
1679 for (i = 0; i < image->module_count; ++i) {
1680 if (image->modules [i]) {
1681 if (!mono_image_close_except_pools (image->modules [i]))
1682 image->modules [i] = NULL;
1685 if (image->modules_loaded)
1686 g_free (image->modules_loaded);
1688 DeleteCriticalSection (&image->szarray_cache_lock);
1689 DeleteCriticalSection (&image->lock);
1691 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1692 if (image->dynamic) {
1693 /* Dynamic images are GC_MALLOCed */
1694 g_free ((char*)image->module_name);
1695 mono_dynamic_image_free ((MonoDynamicImage*)image);
1698 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1704 mono_image_close_finish (MonoImage *image)
1709 for (l = image->reflection_info_unregister_classes; l; l = l->next)
1711 g_slist_free (image->reflection_info_unregister_classes);
1712 image->reflection_info_unregister_classes = NULL;
1714 if (image->references && !image->dynamic) {
1715 for (i = 0; i < image->nreferences; i++) {
1716 if (image->references [i] && image->references [i] != REFERENCE_MISSING)
1717 mono_assembly_close_finish (image->references [i]);
1720 g_free (image->references);
1721 image->references = NULL;
1724 for (i = 0; i < image->module_count; ++i) {
1725 if (image->modules [i])
1726 mono_image_close_finish (image->modules [i]);
1729 g_free (image->modules);
1731 #ifndef DISABLE_PERFCOUNTERS
1732 mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
1735 if (!image->dynamic) {
1736 if (debug_assembly_unload)
1737 mono_mempool_invalidate (image->mempool);
1739 mono_mempool_destroy (image->mempool);
1743 if (debug_assembly_unload)
1744 mono_mempool_invalidate (image->mempool);
1746 mono_mempool_destroy (image->mempool);
1752 * @image: The image file we wish to close
1754 * Closes an image file, deallocates all memory consumed and
1755 * unmaps all possible sections of the file
1758 mono_image_close (MonoImage *image)
1760 if (mono_image_close_except_pools (image))
1761 mono_image_close_finish (image);
1765 * mono_image_strerror:
1766 * @status: an code indicating the result from a recent operation
1768 * Returns: a string describing the error
1771 mono_image_strerror (MonoImageOpenStatus status)
1776 case MONO_IMAGE_ERROR_ERRNO:
1777 return strerror (errno);
1778 case MONO_IMAGE_IMAGE_INVALID:
1779 return "File does not contain a valid CIL image";
1780 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1781 return "An assembly was referenced, but could not be found";
1783 return "Internal error";
1787 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1788 guint32 lang_id, gunichar2 *name,
1789 MonoPEResourceDirEntry *entry,
1790 MonoPEResourceDir *root, guint32 level)
1792 gboolean is_string, is_dir;
1793 guint32 name_offset, dir_offset;
1795 /* Level 0 holds a directory entry for each type of resource
1796 * (identified by ID or name).
1798 * Level 1 holds a directory entry for each named resource
1799 * item, and each "anonymous" item of a particular type of
1802 * Level 2 holds a directory entry for each language pointing to
1805 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
1806 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
1808 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
1809 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
1814 } else if (level==1) {
1815 if (res_id != name_offset)
1819 is_string==TRUE && name!=lookup (name_offset)) {
1823 } else if (level==2) {
1824 if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
1827 g_assert_not_reached ();
1831 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1832 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1835 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1837 for(i=0; i<entries; i++) {
1838 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1841 ret=mono_image_walk_resource_tree (info, res_id,
1852 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
1853 MonoPEResourceDataEntry *res;
1855 res = g_new0 (MonoPEResourceDataEntry, 1);
1857 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
1858 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
1859 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
1860 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
1867 * mono_image_lookup_resource:
1868 * @image: the image to look up the resource in
1869 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1870 * @lang_id: The language id.
1871 * @name: the resource name to lookup.
1873 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1874 * of the given resource. The caller should free it using g_free () when no longer
1878 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1880 MonoCLIImageInfo *info;
1881 MonoDotNetHeader *header;
1882 MonoPEDatadir *datadir;
1883 MonoPEDirEntry *rsrc;
1884 MonoPEResourceDir *resource_dir;
1885 MonoPEResourceDirEntry *res_entries;
1892 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
1894 info=image->image_info;
1899 header=&info->cli_header;
1904 datadir=&header->datadir;
1909 rsrc=&datadir->pe_resource_table;
1914 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1915 if(resource_dir==NULL) {
1919 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
1920 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1922 for(i=0; i<entries; i++) {
1923 MonoPEResourceDirEntry *entry=&res_entries[i];
1926 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1927 name, entry, resource_dir,
1938 * mono_image_get_entry_point:
1939 * @image: the image where the entry point will be looked up.
1941 * Use this routine to determine the metadata token for method that
1942 * has been flagged as the entry point.
1944 * Returns: the token for the entry point method in the image
1947 mono_image_get_entry_point (MonoImage *image)
1949 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1953 * mono_image_get_resource:
1954 * @image: the image where the resource will be looked up.
1955 * @offset: The offset to add to the resource
1956 * @size: a pointer to an int where the size of the resource will be stored
1958 * This is a low-level routine that fetches a resource from the
1959 * metadata that starts at a given @offset. The @size parameter is
1960 * filled with the data field as encoded in the metadata.
1962 * Returns: the pointer to the resource whose offset is @offset.
1965 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1967 MonoCLIImageInfo *iinfo = image->image_info;
1968 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1971 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1974 data = mono_image_rva_map (image, ch->ch_resources.rva);
1979 *size = read32 (data);
1985 mono_image_load_file_for_image (MonoImage *image, int fileidx)
1987 char *base_dir, *name;
1989 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
1993 if (fileidx < 1 || fileidx > t->rows)
1996 mono_loader_lock ();
1997 if (image->files && image->files [fileidx - 1]) {
1998 mono_loader_unlock ();
1999 return image->files [fileidx - 1];
2003 image->files = g_new0 (MonoImage*, t->rows);
2005 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
2006 fname = mono_metadata_string_heap (image, fname_id);
2007 base_dir = g_path_get_dirname (image->name);
2008 name = g_build_filename (base_dir, fname, NULL);
2009 res = mono_image_open (name, NULL);
2012 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
2013 res->assembly = image->assembly;
2014 for (i = 0; i < res->module_count; ++i) {
2015 if (res->modules [i] && !res->modules [i]->assembly)
2016 res->modules [i]->assembly = image->assembly;
2019 image->files [fileidx - 1] = res;
2021 if (res->is_module_handle)
2022 mono_image_fixup_vtable (res);
2025 mono_loader_unlock ();
2032 * mono_image_get_strong_name:
2033 * @image: a MonoImage
2034 * @size: a guint32 pointer, or NULL.
2036 * If the image has a strong name, and @size is not NULL, the value
2037 * pointed to by size will have the size of the strong name.
2039 * Returns: NULL if the image does not have a strong name, or a
2040 * pointer to the public key.
2043 mono_image_get_strong_name (MonoImage *image, guint32 *size)
2045 MonoCLIImageInfo *iinfo = image->image_info;
2046 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2049 if (!de->size || !de->rva)
2051 data = mono_image_rva_map (image, de->rva);
2060 * mono_image_strong_name_position:
2061 * @image: a MonoImage
2062 * @size: a guint32 pointer, or NULL.
2064 * If the image has a strong name, and @size is not NULL, the value
2065 * pointed to by size will have the size of the strong name.
2067 * Returns: the position within the image file where the strong name
2071 mono_image_strong_name_position (MonoImage *image, guint32 *size)
2073 MonoCLIImageInfo *iinfo = image->image_info;
2074 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2079 if (!de->size || !de->rva)
2081 pos = mono_cli_rva_image_map (image, de->rva);
2082 return pos == INVALID_ADDRESS ? 0 : pos;
2086 * mono_image_get_public_key:
2087 * @image: a MonoImage
2088 * @size: a guint32 pointer, or NULL.
2090 * This is used to obtain the public key in the @image.
2092 * If the image has a public key, and @size is not NULL, the value
2093 * pointed to by size will have the size of the public key.
2095 * Returns: NULL if the image does not have a public key, or a pointer
2096 * to the public key.
2099 mono_image_get_public_key (MonoImage *image, guint32 *size)
2104 if (image->dynamic) {
2106 *size = ((MonoDynamicImage*)image)->public_key_len;
2107 return (char*)((MonoDynamicImage*)image)->public_key;
2109 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2111 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2114 pubkey = mono_metadata_blob_heap (image, tok);
2115 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2122 * mono_image_get_name:
2123 * @name: a MonoImage
2125 * Returns: the name of the assembly.
2128 mono_image_get_name (MonoImage *image)
2130 return image->assembly_name;
2134 * mono_image_get_filename:
2135 * @image: a MonoImage
2137 * Used to get the filename that hold the actual MonoImage
2139 * Returns: the filename.
2142 mono_image_get_filename (MonoImage *image)
2148 mono_image_get_guid (MonoImage *image)
2153 const MonoTableInfo*
2154 mono_image_get_table_info (MonoImage *image, int table_id)
2156 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2158 return &image->tables [table_id];
2162 mono_image_get_table_rows (MonoImage *image, int table_id)
2164 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2166 return image->tables [table_id].rows;
2170 mono_table_info_get_rows (const MonoTableInfo *table)
2176 * mono_image_get_assembly:
2177 * @image: the MonoImage.
2179 * Use this routine to get the assembly that owns this image.
2181 * Returns: the assembly that holds this image.
2184 mono_image_get_assembly (MonoImage *image)
2186 return image->assembly;
2190 * mono_image_is_dynamic:
2191 * @image: the MonoImage
2193 * Determines if the given image was created dynamically through the
2194 * System.Reflection.Emit API
2196 * Returns: TRUE if the image was created dynamically, FALSE if not.
2199 mono_image_is_dynamic (MonoImage *image)
2201 return image->dynamic;
2205 * mono_image_has_authenticode_entry:
2206 * @image: the MonoImage
2208 * Use this routine to determine if the image has a Authenticode
2209 * Certificate Table.
2211 * Returns: TRUE if the image contains an authenticode entry in the PE
2215 mono_image_has_authenticode_entry (MonoImage *image)
2217 MonoCLIImageInfo *iinfo = image->image_info;
2218 MonoDotNetHeader *header = &iinfo->cli_header;
2219 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
2220 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
2221 return ((de->rva != 0) && (de->size > 8));
2225 mono_image_alloc (MonoImage *image, guint size)
2229 #ifndef DISABLE_PERFCOUNTERS
2230 mono_perfcounters->loader_bytes += size;
2232 mono_image_lock (image);
2233 res = mono_mempool_alloc (image->mempool, size);
2234 mono_image_unlock (image);
2240 mono_image_alloc0 (MonoImage *image, guint size)
2244 #ifndef DISABLE_PERFCOUNTERS
2245 mono_perfcounters->loader_bytes += size;
2247 mono_image_lock (image);
2248 res = mono_mempool_alloc0 (image->mempool, size);
2249 mono_image_unlock (image);
2255 mono_image_strdup (MonoImage *image, const char *s)
2259 #ifndef DISABLE_PERFCOUNTERS
2260 mono_perfcounters->loader_bytes += strlen (s);
2262 mono_image_lock (image);
2263 res = mono_mempool_strdup (image->mempool, s);
2264 mono_image_unlock (image);
2270 g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
2274 new_list = mono_image_alloc (image, sizeof (GList));
2275 new_list->data = data;
2276 new_list->prev = list ? list->prev : NULL;
2277 new_list->next = list;
2280 new_list->prev->next = new_list;
2282 list->prev = new_list;
2288 g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
2292 new_list = mono_image_alloc (image, sizeof (GSList));
2293 new_list->data = data;
2294 new_list->next = NULL;
2296 return g_slist_concat (list, new_list);
2300 mono_image_lock (MonoImage *image)
2302 mono_locks_acquire (&image->lock, ImageDataLock);
2306 mono_image_unlock (MonoImage *image)
2308 mono_locks_release (&image->lock, ImageDataLock);
2313 * mono_image_property_lookup:
2315 * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
2317 * LOCKING: Takes the image lock
2320 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
2324 mono_image_lock (image);
2325 res = mono_property_hash_lookup (image->property_hash, subject, property);
2326 mono_image_unlock (image);
2332 * mono_image_property_insert:
2334 * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2336 * LOCKING: Takes the image lock
2339 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
2341 mono_image_lock (image);
2342 mono_property_hash_insert (image->property_hash, subject, property, value);
2343 mono_image_unlock (image);
2347 * mono_image_property_remove:
2349 * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2351 * LOCKING: Takes the image lock
2354 mono_image_property_remove (MonoImage *image, gpointer subject)
2356 mono_image_lock (image);
2357 mono_property_hash_remove_object (image->property_hash, subject);
2358 mono_image_unlock (image);