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) mono_mutex_lock (&images_mutex)
58 #define mono_images_unlock() if (mutex_inited) mono_mutex_unlock (&images_mutex)
59 static gboolean mutex_inited;
60 static mono_mutex_t images_mutex;
62 typedef struct ImageUnloadHook ImageUnloadHook;
63 struct ImageUnloadHook {
64 MonoImageUnloadFunc func;
68 static 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 if (image->metadata_only)
125 for (i = 0; i < top; i++){
126 if ((addr >= tables->st_virtual_address) &&
127 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
129 if (image->is_module_handle)
132 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
136 return INVALID_ADDRESS;
140 * mono_images_rva_map:
141 * @image: a MonoImage
142 * @addr: relative virtual address (RVA)
144 * This is a low-level routine used by the runtime to map relative
145 * virtual address (RVA) into their location in memory.
147 * Returns: the address in memory for the given RVA, or NULL if the
148 * RVA is not valid for this image.
151 mono_image_rva_map (MonoImage *image, guint32 addr)
153 MonoCLIImageInfo *iinfo = image->image_info;
154 const int top = iinfo->cli_section_count;
155 MonoSectionTable *tables = iinfo->cli_section_tables;
159 if (image->is_module_handle) {
160 if (addr && addr < image->raw_data_len)
161 return image->raw_data + addr;
167 for (i = 0; i < top; i++){
168 if ((addr >= tables->st_virtual_address) &&
169 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
170 if (!iinfo->cli_sections [i]) {
171 if (!mono_image_ensure_section_idx (image, i))
174 return (char*)iinfo->cli_sections [i] +
175 (addr - tables->st_virtual_address);
185 * Initialize the global variables used by this module.
188 mono_images_init (void)
190 mono_mutex_init_recursive (&images_mutex);
192 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
193 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
195 debug_assembly_unload = g_getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
201 * mono_images_cleanup:
203 * Free all resources used by this module.
206 mono_images_cleanup (void)
211 mono_mutex_destroy (&images_mutex);
213 g_hash_table_iter_init (&iter, loaded_images_hash);
214 while (g_hash_table_iter_next (&iter, NULL, (void**)&image))
215 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly image '%s' still loaded at shutdown.", image->name);
217 g_hash_table_destroy (loaded_images_hash);
218 g_hash_table_destroy (loaded_images_refonly_hash);
220 mutex_inited = FALSE;
224 * mono_image_ensure_section_idx:
225 * @image: The image we are operating on
226 * @section: section number that we will load/map into memory
228 * This routine makes sure that we have an in-memory copy of
229 * an image section (.text, .rsrc, .data).
231 * Returns: TRUE on success
234 mono_image_ensure_section_idx (MonoImage *image, int section)
236 MonoCLIImageInfo *iinfo = image->image_info;
237 MonoSectionTable *sect;
239 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
241 if (iinfo->cli_sections [section] != NULL)
244 sect = &iinfo->cli_section_tables [section];
246 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
249 if (image->is_module_handle)
250 iinfo->cli_sections [section] = image->raw_data + sect->st_virtual_address;
253 /* FIXME: we ignore the writable flag since we don't patch the binary */
254 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
259 * mono_image_ensure_section:
260 * @image: The image we are operating on
261 * @section: section name that we will load/map into memory
263 * This routine makes sure that we have an in-memory copy of
264 * an image section (.text, .rsrc, .data).
266 * Returns: TRUE on success
269 mono_image_ensure_section (MonoImage *image, const char *section)
271 MonoCLIImageInfo *ii = image->image_info;
274 for (i = 0; i < ii->cli_section_count; i++){
275 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
278 return mono_image_ensure_section_idx (image, i);
284 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
286 const int top = iinfo->cli_header.coff.coff_sections;
289 iinfo->cli_section_count = top;
290 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
291 iinfo->cli_sections = g_new0 (void *, top);
293 for (i = 0; i < top; i++){
294 MonoSectionTable *t = &iinfo->cli_section_tables [i];
296 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
298 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
299 offset += sizeof (MonoSectionTable);
301 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
302 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
303 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
304 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
305 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
306 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
307 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
308 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
309 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
310 t->st_flags = GUINT32_FROM_LE (t->st_flags);
312 /* consistency checks here */
319 load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
323 offset = mono_cli_rva_image_map (image, iinfo->cli_header.datadir.pe_cli_header.rva);
324 if (offset == INVALID_ADDRESS)
327 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
329 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
331 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
332 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
333 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
334 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
335 SWAP32 (iinfo->cli_cli_header.ch_size);
336 SWAP32 (iinfo->cli_cli_header.ch_flags);
337 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
338 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
339 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
340 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
341 SWAPPDE (iinfo->cli_cli_header.ch_resources);
342 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
343 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
344 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
345 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
346 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
347 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
348 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
349 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
350 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
351 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
352 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
353 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
354 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
359 /* Catch new uses of the fields that are supposed to be zero */
361 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
362 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
363 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
364 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
365 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
366 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
367 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
368 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
369 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
372 * No need to scare people who are testing this, I am just
373 * labelling this as a LAMESPEC
375 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
383 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
385 guint32 offset, size;
391 offset = mono_cli_rva_image_map (image, iinfo->cli_cli_header.ch_metadata.rva);
392 if (offset == INVALID_ADDRESS)
395 size = iinfo->cli_cli_header.ch_metadata.size;
397 if (offset + size > image->raw_data_len)
399 image->raw_metadata = image->raw_data + offset;
401 /* 24.2.1: Metadata root starts here */
402 ptr = image->raw_metadata;
404 if (strncmp (ptr, "BSJB", 4) == 0){
405 guint32 version_string_len;
408 image->md_version_major = read16 (ptr);
410 image->md_version_minor = read16 (ptr);
413 version_string_len = read32 (ptr);
415 image->version = g_strndup (ptr, version_string_len);
416 ptr += version_string_len;
417 pad = ptr - image->raw_metadata;
419 ptr += 4 - (pad % 4);
423 /* skip over flags */
426 streams = read16 (ptr);
429 for (i = 0; i < streams; i++){
430 if (strncmp (ptr + 8, "#~", 3) == 0){
431 image->heap_tables.data = image->raw_metadata + read32 (ptr);
432 image->heap_tables.size = read32 (ptr + 4);
434 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
435 image->heap_strings.data = image->raw_metadata + read32 (ptr);
436 image->heap_strings.size = read32 (ptr + 4);
438 } else if (strncmp (ptr + 8, "#US", 4) == 0){
439 image->heap_us.data = image->raw_metadata + read32 (ptr);
440 image->heap_us.size = read32 (ptr + 4);
442 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
443 image->heap_blob.data = image->raw_metadata + read32 (ptr);
444 image->heap_blob.size = read32 (ptr + 4);
446 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
447 image->heap_guid.data = image->raw_metadata + read32 (ptr);
448 image->heap_guid.size = read32 (ptr + 4);
450 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
451 image->heap_tables.data = image->raw_metadata + read32 (ptr);
452 image->heap_tables.size = read32 (ptr + 4);
454 image->uncompressed_metadata = TRUE;
455 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);
457 g_message ("Unknown heap type: %s\n", ptr + 8);
458 ptr += 8 + strlen (ptr + 8) + 1;
460 pad = ptr - image->raw_metadata;
462 ptr += 4 - (pad % 4);
465 g_assert (image->heap_guid.data);
466 g_assert (image->heap_guid.size >= 16);
468 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
474 * Load representation of logical metadata tables, from the "#~" stream
477 load_tables (MonoImage *image)
479 const char *heap_tables = image->heap_tables.data;
482 int valid = 0, table;
485 heap_sizes = heap_tables [6];
486 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
487 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
488 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
490 valid_mask = read64 (heap_tables + 8);
491 rows = (const guint32 *) (heap_tables + 24);
493 for (table = 0; table < 64; table++){
494 if ((valid_mask & ((guint64) 1 << table)) == 0){
495 if (table > MONO_TABLE_LAST)
497 image->tables [table].rows = 0;
500 if (table > MONO_TABLE_LAST) {
501 g_warning("bits in valid must be zero above 0x37 (II - 23.1.6)");
503 image->tables [table].rows = read32 (rows);
509 image->tables_base = (heap_tables + 24) + (4 * valid);
511 /* They must be the same */
512 g_assert ((const void *) image->tables_base == (const void *) rows);
514 mono_metadata_compute_table_bases (image);
519 load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
521 if (!load_metadata_ptrs (image, iinfo))
524 return load_tables (image);
528 mono_image_check_for_module_cctor (MonoImage *image)
530 MonoTableInfo *t, *mt;
531 t = &image->tables [MONO_TABLE_TYPEDEF];
532 mt = &image->tables [MONO_TABLE_METHOD];
533 if (image_is_dynamic (image)) {
535 image->checked_module_cctor = TRUE;
539 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
540 const char *name = mono_metadata_string_heap (image, nameidx);
541 if (strcmp (name, "<Module>") == 0) {
542 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
545 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
547 last_method = mt->rows;
548 for (; first_method < last_method; first_method++) {
549 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
550 name = mono_metadata_string_heap (image, nameidx);
551 if (strcmp (name, ".cctor") == 0) {
552 image->has_module_cctor = TRUE;
553 image->checked_module_cctor = TRUE;
559 image->has_module_cctor = FALSE;
560 image->checked_module_cctor = TRUE;
564 load_modules (MonoImage *image)
571 t = &image->tables [MONO_TABLE_MODULEREF];
572 image->modules = g_new0 (MonoImage *, t->rows);
573 image->modules_loaded = g_new0 (gboolean, t->rows);
574 image->module_count = t->rows;
578 * mono_image_load_module:
580 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
581 * it cannot be loaded.
584 mono_image_load_module (MonoImage *image, int idx)
587 MonoTableInfo *file_table;
590 gboolean refonly = image->ref_only;
591 GList *list_iter, *valid_modules = NULL;
592 MonoImageOpenStatus status;
594 if ((image->module_count == 0) || (idx > image->module_count || idx <= 0))
596 if (image->modules_loaded [idx - 1])
597 return image->modules [idx - 1];
599 file_table = &image->tables [MONO_TABLE_FILE];
600 for (i = 0; i < file_table->rows; i++) {
601 guint32 cols [MONO_FILE_SIZE];
602 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
603 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
605 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
608 t = &image->tables [MONO_TABLE_MODULEREF];
609 base_dir = g_path_get_dirname (image->name);
614 guint32 cols [MONO_MODULEREF_SIZE];
615 /* if there is no file table, we try to load the module... */
616 int valid = file_table->rows == 0;
618 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
619 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
620 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
621 /* be safe with string dups, but we could just compare string indexes */
622 if (strcmp (list_iter->data, name) == 0) {
628 module_ref = g_build_filename (base_dir, name, NULL);
629 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
630 if (image->modules [idx - 1]) {
631 mono_image_addref (image->modules [idx - 1]);
632 image->modules [idx - 1]->assembly = image->assembly;
634 if (image->modules [idx - 1]->is_module_handle)
635 mono_image_fixup_vtable (image->modules [idx - 1]);
637 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
643 image->modules_loaded [idx - 1] = TRUE;
646 g_list_free (valid_modules);
648 return image->modules [idx - 1];
652 class_key_extract (gpointer value)
654 MonoClass *class = value;
656 return GUINT_TO_POINTER (class->type_token);
660 class_next_value (gpointer value)
662 MonoClass *class = value;
664 return (gpointer*)&class->next_class_cache;
668 mono_image_init (MonoImage *image)
670 mono_mutex_init_recursive (&image->lock);
671 mono_mutex_init_recursive (&image->szarray_cache_lock);
673 image->mempool = mono_mempool_new_size (512);
674 mono_internal_hash_table_init (&image->class_cache,
678 image->field_cache = mono_conc_hashtable_new (&image->lock, NULL, NULL);
680 image->typespec_cache = g_hash_table_new (NULL, NULL);
681 image->memberref_signatures = g_hash_table_new (NULL, NULL);
682 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
683 image->method_signatures = g_hash_table_new (NULL, NULL);
685 image->property_hash = mono_property_hash_new ();
688 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
689 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
690 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
691 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
692 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
701 * Returns < 0 to indicate an error.
704 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
706 MonoDotNetHeader64 header64;
709 if (!image->is_module_handle)
711 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
714 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
716 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
719 /* endian swap the fields common between PE and PE+ */
720 SWAP32 (header->coff.coff_time);
721 SWAP32 (header->coff.coff_symptr);
722 SWAP32 (header->coff.coff_symcount);
723 SWAP16 (header->coff.coff_machine);
724 SWAP16 (header->coff.coff_sections);
725 SWAP16 (header->coff.coff_opt_header_size);
726 SWAP16 (header->coff.coff_attributes);
728 SWAP32 (header->pe.pe_code_size);
729 SWAP32 (header->pe.pe_uninit_data_size);
730 SWAP32 (header->pe.pe_rva_entry_point);
731 SWAP32 (header->pe.pe_rva_code_base);
732 SWAP32 (header->pe.pe_rva_data_base);
733 SWAP16 (header->pe.pe_magic);
735 /* now we are ready for the basic tests */
737 if (header->pe.pe_magic == 0x10B) {
738 offset += sizeof (MonoDotNetHeader);
739 SWAP32 (header->pe.pe_data_size);
740 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
743 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
744 SWAP32 (header->nt.pe_stack_reserve);
745 SWAP32 (header->nt.pe_stack_commit);
746 SWAP32 (header->nt.pe_heap_reserve);
747 SWAP32 (header->nt.pe_heap_commit);
748 } else if (header->pe.pe_magic == 0x20B) {
749 /* PE32+ file format */
750 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
752 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
753 offset += sizeof (MonoDotNetHeader64);
754 /* copy the fields already swapped. the last field, pe_data_size, is missing */
755 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
756 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
757 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
759 SWAP64 (header64.nt.pe_image_base);
760 header->nt.pe_image_base = header64.nt.pe_image_base;
761 SWAP64 (header64.nt.pe_stack_reserve);
762 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
763 SWAP64 (header64.nt.pe_stack_commit);
764 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
765 SWAP64 (header64.nt.pe_heap_reserve);
766 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
767 SWAP64 (header64.nt.pe_heap_commit);
768 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
770 header->nt.pe_section_align = header64.nt.pe_section_align;
771 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
772 header->nt.pe_os_major = header64.nt.pe_os_major;
773 header->nt.pe_os_minor = header64.nt.pe_os_minor;
774 header->nt.pe_user_major = header64.nt.pe_user_major;
775 header->nt.pe_user_minor = header64.nt.pe_user_minor;
776 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
777 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
778 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
779 header->nt.pe_image_size = header64.nt.pe_image_size;
780 header->nt.pe_header_size = header64.nt.pe_header_size;
781 header->nt.pe_checksum = header64.nt.pe_checksum;
782 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
783 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
784 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
785 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
787 /* copy the datadir */
788 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
793 /* MonoPEHeaderNT: not used yet */
794 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
795 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
796 SWAP16 (header->nt.pe_os_major); /* must be 4 */
797 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
798 SWAP16 (header->nt.pe_user_major);
799 SWAP16 (header->nt.pe_user_minor);
800 SWAP16 (header->nt.pe_subsys_major);
801 SWAP16 (header->nt.pe_subsys_minor);
802 SWAP32 (header->nt.pe_reserved_1);
803 SWAP32 (header->nt.pe_image_size);
804 SWAP32 (header->nt.pe_header_size);
805 SWAP32 (header->nt.pe_checksum);
806 SWAP16 (header->nt.pe_subsys_required);
807 SWAP16 (header->nt.pe_dll_flags);
808 SWAP32 (header->nt.pe_loader_flags);
809 SWAP32 (header->nt.pe_data_dir_count);
811 /* MonoDotNetHeader: mostly unused */
812 SWAPPDE (header->datadir.pe_export_table);
813 SWAPPDE (header->datadir.pe_import_table);
814 SWAPPDE (header->datadir.pe_resource_table);
815 SWAPPDE (header->datadir.pe_exception_table);
816 SWAPPDE (header->datadir.pe_certificate_table);
817 SWAPPDE (header->datadir.pe_reloc_table);
818 SWAPPDE (header->datadir.pe_debug);
819 SWAPPDE (header->datadir.pe_copyright);
820 SWAPPDE (header->datadir.pe_global_ptr);
821 SWAPPDE (header->datadir.pe_tls_table);
822 SWAPPDE (header->datadir.pe_load_config_table);
823 SWAPPDE (header->datadir.pe_bound_import);
824 SWAPPDE (header->datadir.pe_iat);
825 SWAPPDE (header->datadir.pe_delay_import_desc);
826 SWAPPDE (header->datadir.pe_cli_header);
827 SWAPPDE (header->datadir.pe_reserved);
830 if (image->is_module_handle)
831 image->raw_data_len = header->nt.pe_image_size;
838 mono_image_load_pe_data (MonoImage *image)
840 MonoCLIImageInfo *iinfo;
841 MonoDotNetHeader *header;
842 MonoMSDOSHeader msdos;
845 iinfo = image->image_info;
846 header = &iinfo->cli_header;
849 if (!image->is_module_handle)
851 if (offset + sizeof (msdos) > image->raw_data_len)
853 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
855 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
858 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
860 offset = msdos.pe_offset;
862 offset = do_load_header (image, header, offset);
867 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
869 if (header->coff.coff_machine != 0x14c)
875 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
876 * which produces binaries with 7.0. From Sergey:
878 * The reason is that MSVC7 uses traditional compile/link
879 * sequence for CIL executables, and VS.NET (and Framework
880 * SDK) includes linker version 7, that puts 7.0 in this
881 * field. That's why it's currently not possible to load VC
882 * binaries with Mono. This field is pretty much meaningless
883 * anyway (what linker?).
885 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
890 * FIXME: byte swap all addresses here for header.
893 if (!load_section_tables (image, iinfo, offset))
903 mono_image_load_cli_data (MonoImage *image)
905 MonoCLIImageInfo *iinfo;
907 iinfo = image->image_info;
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 (!image->metadata_only) {
956 if (!mono_verifier_verify_pe_data (image, &errors))
959 if (!mono_image_load_pe_data (image))
963 if (care_about_cli == FALSE) {
967 if (!mono_verifier_verify_cli_data (image, &errors))
970 if (!mono_image_load_cli_data (image))
973 if (!mono_verifier_verify_table_data (image, &errors))
976 mono_image_load_names (image);
978 load_modules (image);
981 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
983 *status = MONO_IMAGE_OK;
989 MonoVerifyInfo *info = errors->data;
990 g_warning ("Could not load image %s due to %s", image->name, info->message);
991 mono_free_verify_list (errors);
993 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
994 mono_image_close (image);
999 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
1000 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly, gboolean metadata_only)
1002 MonoCLIImageInfo *iinfo;
1006 if ((filed = mono_file_map_open (fname)) == NULL){
1007 if (IS_PORTABILITY_SET) {
1008 gchar *ffname = mono_portability_find_file (fname, TRUE);
1010 filed = mono_file_map_open (ffname);
1015 if (filed == NULL) {
1017 *status = MONO_IMAGE_ERROR_ERRNO;
1022 image = g_new0 (MonoImage, 1);
1023 image->raw_buffer_used = TRUE;
1024 image->raw_data_len = mono_file_map_size (filed);
1025 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);
1026 #if defined(HAVE_MMAP) && !defined (HOST_WIN32)
1027 if (!image->raw_data) {
1028 image->fileio_used = TRUE;
1029 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);
1032 if (!image->raw_data) {
1033 mono_file_map_close (filed);
1036 *status = MONO_IMAGE_IMAGE_INVALID;
1039 iinfo = g_new0 (MonoCLIImageInfo, 1);
1040 image->image_info = iinfo;
1041 image->name = mono_path_resolve_symlinks (fname);
1042 image->ref_only = refonly;
1043 image->metadata_only = metadata_only;
1044 image->ref_count = 1;
1045 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
1046 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
1048 mono_file_map_close (filed);
1049 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
1053 mono_image_loaded_full (const char *name, gboolean refonly)
1056 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1058 mono_images_lock ();
1059 res = g_hash_table_lookup (loaded_images, name);
1060 mono_images_unlock ();
1065 * mono_image_loaded:
1066 * @name: name of the image to load
1068 * This routine ensures that the given image is loaded.
1070 * Returns: the loaded MonoImage, or NULL on failure.
1073 mono_image_loaded (const char *name)
1075 return mono_image_loaded_full (name, FALSE);
1084 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1086 GuidData *data = user_data;
1092 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1097 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1100 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1104 mono_images_lock ();
1105 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1106 mono_images_unlock ();
1111 mono_image_loaded_by_guid (const char *guid)
1113 return mono_image_loaded_by_guid_full (guid, FALSE);
1117 register_image (MonoImage *image)
1120 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1122 mono_images_lock ();
1123 image2 = g_hash_table_lookup (loaded_images, image->name);
1126 /* Somebody else beat us to it */
1127 mono_image_addref (image2);
1128 mono_images_unlock ();
1129 mono_image_close (image);
1132 g_hash_table_insert (loaded_images, image->name, image);
1133 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
1134 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
1135 mono_images_unlock ();
1141 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1143 MonoCLIImageInfo *iinfo;
1147 if (!data || !data_len) {
1149 *status = MONO_IMAGE_IMAGE_INVALID;
1154 datac = g_try_malloc (data_len);
1157 *status = MONO_IMAGE_ERROR_ERRNO;
1160 memcpy (datac, data, data_len);
1163 image = g_new0 (MonoImage, 1);
1164 image->raw_data = datac;
1165 image->raw_data_len = data_len;
1166 image->raw_data_allocated = need_copy;
1167 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1168 iinfo = g_new0 (MonoCLIImageInfo, 1);
1169 image->image_info = iinfo;
1170 image->ref_only = refonly;
1172 image = do_mono_image_load (image, status, TRUE, TRUE);
1176 return register_image (image);
1180 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1182 return mono_image_open_from_data_with_name (data, data_len, need_copy, status, refonly, NULL);
1186 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1188 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1192 /* fname is not duplicated. */
1194 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1197 MonoCLIImageInfo* iinfo;
1199 image = g_new0 (MonoImage, 1);
1200 image->raw_data = (char*) module_handle;
1201 image->is_module_handle = TRUE;
1202 iinfo = g_new0 (MonoCLIImageInfo, 1);
1203 image->image_info = iinfo;
1204 image->name = fname;
1205 image->ref_count = has_entry_point ? 0 : 1;
1206 image->has_entry_point = has_entry_point;
1208 image = do_mono_image_load (image, status, TRUE, TRUE);
1212 return register_image (image);
1217 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1220 GHashTable *loaded_images;
1223 g_return_val_if_fail (fname != NULL, NULL);
1226 /* Load modules using LoadLibrary. */
1227 if (!refonly && coree_module_handle) {
1228 HMODULE module_handle;
1229 guint16 *fname_utf16;
1232 absfname = mono_path_resolve_symlinks (fname);
1235 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1236 mono_images_lock ();
1237 image = g_hash_table_lookup (loaded_images_hash, absfname);
1239 g_assert (image->is_module_handle);
1240 if (image->has_entry_point && image->ref_count == 0) {
1241 /* Increment reference count on images loaded outside of the runtime. */
1242 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1243 /* The image is already loaded because _CorDllMain removes images from the hash. */
1244 module_handle = LoadLibrary (fname_utf16);
1245 g_assert (module_handle == (HMODULE) image->raw_data);
1247 mono_image_addref (image);
1248 mono_images_unlock ();
1250 g_free (fname_utf16);
1255 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1256 module_handle = MonoLoadImage (fname_utf16);
1257 if (status && module_handle == NULL)
1258 last_error = GetLastError ();
1260 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1261 image = g_hash_table_lookup (loaded_images_hash, absfname);
1263 mono_image_addref (image);
1264 mono_images_unlock ();
1266 g_free (fname_utf16);
1268 if (module_handle == NULL) {
1272 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT)
1273 *status = MONO_IMAGE_IMAGE_INVALID;
1275 if (last_error == ERROR_FILE_NOT_FOUND || last_error == ERROR_PATH_NOT_FOUND)
1285 g_assert (image->is_module_handle);
1286 g_assert (image->has_entry_point);
1291 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
1295 absfname = mono_path_canonicalize (fname);
1298 * The easiest solution would be to do all the loading inside the mutex,
1299 * but that would lead to scalability problems. So we let the loading
1300 * happen outside the mutex, and if multiple threads happen to load
1301 * the same image, we discard all but the first copy.
1303 mono_images_lock ();
1304 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1305 image = g_hash_table_lookup (loaded_images, absfname);
1309 mono_image_addref (image);
1310 mono_images_unlock ();
1313 mono_images_unlock ();
1315 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly, FALSE);
1319 return register_image (image);
1324 * @fname: filename that points to the module we want to open
1325 * @status: An error condition is returned in this field
1327 * Returns: An open image of type %MonoImage or NULL on error.
1328 * The caller holds a temporary reference to the returned image which should be cleared
1329 * when no longer needed by calling mono_image_close ().
1330 * if NULL, then check the value of @status for details on the error
1333 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1335 return mono_image_open_full (fname, status, FALSE);
1339 * mono_pe_file_open:
1340 * @fname: filename that points to the module we want to open
1341 * @status: An error condition is returned in this field
1343 * Returns: An open image of type %MonoImage or NULL on error. if
1344 * NULL, then check the value of @status for details on the error.
1345 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1346 * It's just a PE file loader, used for FileVersionInfo. It also does
1347 * not use the image cache.
1350 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1352 g_return_val_if_fail (fname != NULL, NULL);
1354 return do_mono_image_open (fname, status, FALSE, TRUE, FALSE, FALSE);
1358 * mono_image_open_raw
1359 * @fname: filename that points to the module we want to open
1360 * @status: An error condition is returned in this field
1362 * Returns an image without loading neither pe or cli data.
1364 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
1367 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
1369 g_return_val_if_fail (fname != NULL, NULL);
1371 return do_mono_image_open (fname, status, FALSE, FALSE, FALSE, FALSE);
1375 * mono_image_open_metadata_only:
1377 * Open an image which contains metadata only without a PE header.
1380 mono_image_open_metadata_only (const char *fname, MonoImageOpenStatus *status)
1382 return do_mono_image_open (fname, status, TRUE, TRUE, FALSE, TRUE);
1386 mono_image_fixup_vtable (MonoImage *image)
1389 MonoCLIImageInfo *iinfo;
1391 MonoVTableFixup *vtfixup;
1397 g_assert (image->is_module_handle);
1399 iinfo = image->image_info;
1400 de = &iinfo->cli_cli_header.ch_vtable_fixups;
1401 if (!de->rva || !de->size)
1403 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
1407 count = de->size / sizeof (MonoVTableFixup);
1409 if (!vtfixup->rva || !vtfixup->count)
1412 slot = mono_image_rva_map (image, vtfixup->rva);
1414 slot_type = vtfixup->type;
1415 slot_count = vtfixup->count;
1416 if (slot_type & VTFIXUP_TYPE_32BIT)
1417 while (slot_count--) {
1418 *((guint32*) slot) = (guint32) mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
1419 slot = ((guint32*) slot) + 1;
1421 else if (slot_type & VTFIXUP_TYPE_64BIT)
1422 while (slot_count--) {
1423 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
1424 slot = ((guint32*) slot) + 1;
1427 g_assert_not_reached();
1432 g_assert_not_reached();
1437 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1439 g_hash_table_destroy ((GHashTable*)val);
1444 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1446 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1451 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1453 g_slist_free ((GSList*)val);
1457 * mono_image_addref:
1458 * @image: The image file we wish to add a reference to
1460 * Increases the reference count of an image.
1463 mono_image_addref (MonoImage *image)
1465 InterlockedIncrement (&image->ref_count);
1469 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1471 stream->alloc_size = stream->index = stream->offset = 0;
1472 g_free (stream->data);
1473 stream->data = NULL;
1475 g_hash_table_destroy (stream->hash);
1476 stream->hash = NULL;
1481 free_hash (GHashTable *hash)
1484 g_hash_table_destroy (hash);
1488 * Returns whether mono_image_close_finish() must be called as well.
1489 * We must unload images in two steps because clearing the domain in
1490 * SGen requires the class metadata to be intact, but we need to free
1491 * the mono_g_hash_tables in case a collection occurs during domain
1492 * unloading and the roots would trip up the GC.
1495 mono_image_close_except_pools (MonoImage *image)
1498 GHashTable *loaded_images;
1501 g_return_val_if_fail (image != NULL, FALSE);
1504 * Atomically decrement the refcount and remove ourselves from the hash tables, so
1505 * register_image () can't grab an image which is being closed.
1507 mono_images_lock ();
1509 if (InterlockedDecrement (&image->ref_count) > 0) {
1510 mono_images_unlock ();
1514 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1515 image2 = g_hash_table_lookup (loaded_images, image->name);
1516 if (image == image2) {
1517 /* This is not true if we are called from mono_image_open () */
1518 g_hash_table_remove (loaded_images, image->name);
1520 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1521 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1523 mono_images_unlock ();
1526 if (image->is_module_handle && image->has_entry_point) {
1527 mono_images_lock ();
1528 if (image->ref_count == 0) {
1529 /* Image will be closed by _CorDllMain. */
1530 FreeLibrary ((HMODULE) image->raw_data);
1531 mono_images_unlock ();
1534 mono_images_unlock ();
1538 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1540 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1542 mono_image_invoke_unload_hook (image);
1544 mono_metadata_clean_for_image (image);
1547 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1548 * assemblies, so we can't release these references in mono_assembly_close () since the
1549 * MonoImage might outlive its associated MonoAssembly.
1551 if (image->references && !image_is_dynamic (image)) {
1552 for (i = 0; i < image->nreferences; i++) {
1553 if (image->references [i] && image->references [i] != REFERENCE_MISSING) {
1554 if (!mono_assembly_close_except_image_pools (image->references [i]))
1555 image->references [i] = NULL;
1559 if (image->references) {
1560 g_free (image->references);
1561 image->references = NULL;
1566 mono_images_lock ();
1567 if (image->is_module_handle && !image->has_entry_point)
1568 FreeLibrary ((HMODULE) image->raw_data);
1569 mono_images_unlock ();
1572 if (image->raw_buffer_used) {
1573 if (image->raw_data != NULL) {
1575 if (image->fileio_used)
1576 mono_file_unmap_fileio (image->raw_data, image->raw_data_handle);
1579 mono_file_unmap (image->raw_data, image->raw_data_handle);
1583 if (image->raw_data_allocated) {
1584 /* FIXME: do we need this? (image is disposed anyway) */
1585 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1586 MonoCLIImageInfo *ii = image->image_info;
1588 if ((image->raw_metadata > image->raw_data) &&
1589 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1590 image->raw_metadata = NULL;
1592 for (i = 0; i < ii->cli_section_count; i++)
1593 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1594 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1595 ii->cli_sections [i] = NULL;
1597 g_free (image->raw_data);
1600 if (debug_assembly_unload) {
1601 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1603 g_free (image->name);
1604 g_free (image->guid);
1605 g_free (image->version);
1606 g_free (image->files);
1609 if (image->method_cache)
1610 g_hash_table_destroy (image->method_cache);
1611 if (image->methodref_cache)
1612 g_hash_table_destroy (image->methodref_cache);
1613 mono_internal_hash_table_destroy (&image->class_cache);
1614 mono_conc_hashtable_destroy (image->field_cache);
1615 if (image->array_cache) {
1616 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1617 g_hash_table_destroy (image->array_cache);
1619 if (image->szarray_cache)
1620 g_hash_table_destroy (image->szarray_cache);
1621 if (image->ptr_cache)
1622 g_hash_table_destroy (image->ptr_cache);
1623 if (image->name_cache) {
1624 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1625 g_hash_table_destroy (image->name_cache);
1628 free_hash (image->native_wrapper_cache);
1629 free_hash (image->native_wrapper_aot_cache);
1630 free_hash (image->native_wrapper_check_cache);
1631 free_hash (image->native_wrapper_aot_check_cache);
1632 free_hash (image->native_func_wrapper_cache);
1633 free_hash (image->managed_wrapper_cache);
1634 free_hash (image->delegate_begin_invoke_cache);
1635 free_hash (image->delegate_end_invoke_cache);
1636 free_hash (image->delegate_invoke_cache);
1637 free_hash (image->delegate_abstract_invoke_cache);
1638 free_hash (image->delegate_bound_static_invoke_cache);
1639 free_hash (image->delegate_invoke_generic_cache);
1640 free_hash (image->delegate_begin_invoke_generic_cache);
1641 free_hash (image->delegate_end_invoke_generic_cache);
1642 free_hash (image->synchronized_generic_cache);
1643 free_hash (image->remoting_invoke_cache);
1644 free_hash (image->runtime_invoke_cache);
1645 free_hash (image->runtime_invoke_vtype_cache);
1646 free_hash (image->runtime_invoke_direct_cache);
1647 free_hash (image->runtime_invoke_vcall_cache);
1648 free_hash (image->synchronized_cache);
1649 free_hash (image->unbox_wrapper_cache);
1650 free_hash (image->cominterop_invoke_cache);
1651 free_hash (image->cominterop_wrapper_cache);
1652 free_hash (image->typespec_cache);
1653 free_hash (image->ldfld_wrapper_cache);
1654 free_hash (image->ldflda_wrapper_cache);
1655 free_hash (image->stfld_wrapper_cache);
1656 free_hash (image->isinst_cache);
1657 free_hash (image->castclass_cache);
1658 free_hash (image->proxy_isinst_cache);
1659 free_hash (image->thunk_invoke_cache);
1660 free_hash (image->var_cache_slow);
1661 free_hash (image->mvar_cache_slow);
1662 free_hash (image->var_cache_constrained);
1663 free_hash (image->mvar_cache_constrained);
1664 free_hash (image->wrapper_param_names);
1665 free_hash (image->pinvoke_scopes);
1666 free_hash (image->pinvoke_scope_filenames);
1667 for (i = 0; i < image->gshared_types_len; ++i)
1668 free_hash (image->gshared_types [i]);
1669 g_free (image->gshared_types);
1671 /* The ownership of signatures is not well defined */
1672 g_hash_table_destroy (image->memberref_signatures);
1673 g_hash_table_destroy (image->helper_signatures);
1674 g_hash_table_destroy (image->method_signatures);
1676 if (image->rgctx_template_hash)
1677 g_hash_table_destroy (image->rgctx_template_hash);
1679 if (image->property_hash)
1680 mono_property_hash_destroy (image->property_hash);
1683 reflection_info_unregister_classes is only required by dynamic images, which will not be properly
1684 cleared during shutdown as we don't perform regular appdomain unload for the root one.
1686 g_assert (!image->reflection_info_unregister_classes || mono_runtime_is_shutting_down ());
1687 image->reflection_info_unregister_classes = NULL;
1689 if (image->interface_bitset) {
1690 mono_unload_interface_ids (image->interface_bitset);
1691 mono_bitset_free (image->interface_bitset);
1693 if (image->image_info){
1694 MonoCLIImageInfo *ii = image->image_info;
1696 if (ii->cli_section_tables)
1697 g_free (ii->cli_section_tables);
1698 if (ii->cli_sections)
1699 g_free (ii->cli_sections);
1700 g_free (image->image_info);
1703 for (i = 0; i < image->module_count; ++i) {
1704 if (image->modules [i]) {
1705 if (!mono_image_close_except_pools (image->modules [i]))
1706 image->modules [i] = NULL;
1709 if (image->modules_loaded)
1710 g_free (image->modules_loaded);
1712 mono_mutex_destroy (&image->szarray_cache_lock);
1713 mono_mutex_destroy (&image->lock);
1715 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1716 if (image_is_dynamic (image)) {
1717 /* Dynamic images are GC_MALLOCed */
1718 g_free ((char*)image->module_name);
1719 mono_dynamic_image_free ((MonoDynamicImage*)image);
1722 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1728 mono_image_close_finish (MonoImage *image)
1732 if (image->references && !image_is_dynamic (image)) {
1733 for (i = 0; i < image->nreferences; i++) {
1734 if (image->references [i] && image->references [i] != REFERENCE_MISSING)
1735 mono_assembly_close_finish (image->references [i]);
1738 g_free (image->references);
1739 image->references = NULL;
1742 for (i = 0; i < image->module_count; ++i) {
1743 if (image->modules [i])
1744 mono_image_close_finish (image->modules [i]);
1747 g_free (image->modules);
1749 #ifndef DISABLE_PERFCOUNTERS
1750 mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
1753 if (!image_is_dynamic (image)) {
1754 if (debug_assembly_unload)
1755 mono_mempool_invalidate (image->mempool);
1757 mono_mempool_destroy (image->mempool);
1761 if (debug_assembly_unload)
1762 mono_mempool_invalidate (image->mempool);
1764 mono_mempool_destroy (image->mempool);
1765 mono_dynamic_image_free_image ((MonoDynamicImage*)image);
1772 * @image: The image file we wish to close
1774 * Closes an image file, deallocates all memory consumed and
1775 * unmaps all possible sections of the file
1778 mono_image_close (MonoImage *image)
1780 if (mono_image_close_except_pools (image))
1781 mono_image_close_finish (image);
1785 * mono_image_strerror:
1786 * @status: an code indicating the result from a recent operation
1788 * Returns: a string describing the error
1791 mono_image_strerror (MonoImageOpenStatus status)
1796 case MONO_IMAGE_ERROR_ERRNO:
1797 return strerror (errno);
1798 case MONO_IMAGE_IMAGE_INVALID:
1799 return "File does not contain a valid CIL image";
1800 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1801 return "An assembly was referenced, but could not be found";
1803 return "Internal error";
1807 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1808 guint32 lang_id, gunichar2 *name,
1809 MonoPEResourceDirEntry *entry,
1810 MonoPEResourceDir *root, guint32 level)
1812 gboolean is_string, is_dir;
1813 guint32 name_offset, dir_offset;
1815 /* Level 0 holds a directory entry for each type of resource
1816 * (identified by ID or name).
1818 * Level 1 holds a directory entry for each named resource
1819 * item, and each "anonymous" item of a particular type of
1822 * Level 2 holds a directory entry for each language pointing to
1825 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
1826 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
1828 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
1829 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
1834 } else if (level==1) {
1835 if (res_id != name_offset)
1839 is_string==TRUE && name!=lookup (name_offset)) {
1843 } else if (level==2) {
1844 if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
1847 g_assert_not_reached ();
1851 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1852 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1855 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1857 for(i=0; i<entries; i++) {
1858 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1861 ret=mono_image_walk_resource_tree (info, res_id,
1872 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
1873 MonoPEResourceDataEntry *res;
1875 res = g_new0 (MonoPEResourceDataEntry, 1);
1877 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
1878 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
1879 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
1880 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
1887 * mono_image_lookup_resource:
1888 * @image: the image to look up the resource in
1889 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1890 * @lang_id: The language id.
1891 * @name: the resource name to lookup.
1893 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1894 * of the given resource. The caller should free it using g_free () when no longer
1898 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1900 MonoCLIImageInfo *info;
1901 MonoDotNetHeader *header;
1902 MonoPEDatadir *datadir;
1903 MonoPEDirEntry *rsrc;
1904 MonoPEResourceDir *resource_dir;
1905 MonoPEResourceDirEntry *res_entries;
1912 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
1914 info=image->image_info;
1919 header=&info->cli_header;
1924 datadir=&header->datadir;
1929 rsrc=&datadir->pe_resource_table;
1934 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1935 if(resource_dir==NULL) {
1939 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
1940 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1942 for(i=0; i<entries; i++) {
1943 MonoPEResourceDirEntry *entry=&res_entries[i];
1946 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1947 name, entry, resource_dir,
1958 * mono_image_get_entry_point:
1959 * @image: the image where the entry point will be looked up.
1961 * Use this routine to determine the metadata token for method that
1962 * has been flagged as the entry point.
1964 * Returns: the token for the entry point method in the image
1967 mono_image_get_entry_point (MonoImage *image)
1969 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1973 * mono_image_get_resource:
1974 * @image: the image where the resource will be looked up.
1975 * @offset: The offset to add to the resource
1976 * @size: a pointer to an int where the size of the resource will be stored
1978 * This is a low-level routine that fetches a resource from the
1979 * metadata that starts at a given @offset. The @size parameter is
1980 * filled with the data field as encoded in the metadata.
1982 * Returns: the pointer to the resource whose offset is @offset.
1985 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1987 MonoCLIImageInfo *iinfo = image->image_info;
1988 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1991 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1994 data = mono_image_rva_map (image, ch->ch_resources.rva);
1999 *size = read32 (data);
2005 mono_image_load_file_for_image (MonoImage *image, int fileidx)
2007 char *base_dir, *name;
2009 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
2013 if (fileidx < 1 || fileidx > t->rows)
2016 mono_image_lock (image);
2017 if (image->files && image->files [fileidx - 1]) {
2018 mono_image_unlock (image);
2019 return image->files [fileidx - 1];
2022 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
2023 fname = mono_metadata_string_heap (image, fname_id);
2024 base_dir = g_path_get_dirname (image->name);
2025 name = g_build_filename (base_dir, fname, NULL);
2026 res = mono_image_open (name, NULL);
2030 mono_image_lock (image);
2031 if (image->files && image->files [fileidx - 1]) {
2032 MonoImage *old = res;
2033 res = image->files [fileidx - 1];
2034 mono_loader_unlock ();
2035 mono_image_close (old);
2038 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
2039 res->assembly = image->assembly;
2040 for (i = 0; i < res->module_count; ++i) {
2041 if (res->modules [i] && !res->modules [i]->assembly)
2042 res->modules [i]->assembly = image->assembly;
2046 image->files = g_new0 (MonoImage*, t->rows);
2047 image->files [fileidx - 1] = res;
2048 mono_loader_unlock ();
2049 /* vtable fixup can't happen with the image lock held */
2051 if (res->is_module_handle)
2052 mono_image_fixup_vtable (res);
2063 * mono_image_get_strong_name:
2064 * @image: a MonoImage
2065 * @size: a guint32 pointer, or NULL.
2067 * If the image has a strong name, and @size is not NULL, the value
2068 * pointed to by size will have the size of the strong name.
2070 * Returns: NULL if the image does not have a strong name, or a
2071 * pointer to the public key.
2074 mono_image_get_strong_name (MonoImage *image, guint32 *size)
2076 MonoCLIImageInfo *iinfo = image->image_info;
2077 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2080 if (!de->size || !de->rva)
2082 data = mono_image_rva_map (image, de->rva);
2091 * mono_image_strong_name_position:
2092 * @image: a MonoImage
2093 * @size: a guint32 pointer, or NULL.
2095 * If the image has a strong name, and @size is not NULL, the value
2096 * pointed to by size will have the size of the strong name.
2098 * Returns: the position within the image file where the strong name
2102 mono_image_strong_name_position (MonoImage *image, guint32 *size)
2104 MonoCLIImageInfo *iinfo = image->image_info;
2105 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2110 if (!de->size || !de->rva)
2112 pos = mono_cli_rva_image_map (image, de->rva);
2113 return pos == INVALID_ADDRESS ? 0 : pos;
2117 * mono_image_get_public_key:
2118 * @image: a MonoImage
2119 * @size: a guint32 pointer, or NULL.
2121 * This is used to obtain the public key in the @image.
2123 * If the image has a public key, and @size is not NULL, the value
2124 * pointed to by size will have the size of the public key.
2126 * Returns: NULL if the image does not have a public key, or a pointer
2127 * to the public key.
2130 mono_image_get_public_key (MonoImage *image, guint32 *size)
2135 if (image_is_dynamic (image)) {
2137 *size = ((MonoDynamicImage*)image)->public_key_len;
2138 return (char*)((MonoDynamicImage*)image)->public_key;
2140 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2142 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2145 pubkey = mono_metadata_blob_heap (image, tok);
2146 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2153 * mono_image_get_name:
2154 * @name: a MonoImage
2156 * Returns: the name of the assembly.
2159 mono_image_get_name (MonoImage *image)
2161 return image->assembly_name;
2165 * mono_image_get_filename:
2166 * @image: a MonoImage
2168 * Used to get the filename that hold the actual MonoImage
2170 * Returns: the filename.
2173 mono_image_get_filename (MonoImage *image)
2179 mono_image_get_guid (MonoImage *image)
2184 const MonoTableInfo*
2185 mono_image_get_table_info (MonoImage *image, int table_id)
2187 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2189 return &image->tables [table_id];
2193 mono_image_get_table_rows (MonoImage *image, int table_id)
2195 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2197 return image->tables [table_id].rows;
2201 mono_table_info_get_rows (const MonoTableInfo *table)
2207 * mono_image_get_assembly:
2208 * @image: the MonoImage.
2210 * Use this routine to get the assembly that owns this image.
2212 * Returns: the assembly that holds this image.
2215 mono_image_get_assembly (MonoImage *image)
2217 return image->assembly;
2221 * mono_image_is_dynamic:
2222 * @image: the MonoImage
2224 * Determines if the given image was created dynamically through the
2225 * System.Reflection.Emit API
2227 * Returns: TRUE if the image was created dynamically, FALSE if not.
2230 mono_image_is_dynamic (MonoImage *image)
2232 return image_is_dynamic (image);
2236 * mono_image_has_authenticode_entry:
2237 * @image: the MonoImage
2239 * Use this routine to determine if the image has a Authenticode
2240 * Certificate Table.
2242 * Returns: TRUE if the image contains an authenticode entry in the PE
2246 mono_image_has_authenticode_entry (MonoImage *image)
2248 MonoCLIImageInfo *iinfo = image->image_info;
2249 MonoDotNetHeader *header = &iinfo->cli_header;
2250 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
2251 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
2252 return ((de->rva != 0) && (de->size > 8));
2256 mono_image_alloc (MonoImage *image, guint size)
2260 #ifndef DISABLE_PERFCOUNTERS
2261 mono_perfcounters->loader_bytes += size;
2263 mono_image_lock (image);
2264 res = mono_mempool_alloc (image->mempool, size);
2265 mono_image_unlock (image);
2271 mono_image_alloc0 (MonoImage *image, guint size)
2275 #ifndef DISABLE_PERFCOUNTERS
2276 mono_perfcounters->loader_bytes += size;
2278 mono_image_lock (image);
2279 res = mono_mempool_alloc0 (image->mempool, size);
2280 mono_image_unlock (image);
2286 mono_image_strdup (MonoImage *image, const char *s)
2290 #ifndef DISABLE_PERFCOUNTERS
2291 mono_perfcounters->loader_bytes += strlen (s);
2293 mono_image_lock (image);
2294 res = mono_mempool_strdup (image->mempool, s);
2295 mono_image_unlock (image);
2301 g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
2305 new_list = mono_image_alloc (image, sizeof (GList));
2306 new_list->data = data;
2307 new_list->prev = list ? list->prev : NULL;
2308 new_list->next = list;
2311 new_list->prev->next = new_list;
2313 list->prev = new_list;
2319 g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
2323 new_list = mono_image_alloc (image, sizeof (GSList));
2324 new_list->data = data;
2325 new_list->next = NULL;
2327 return g_slist_concat (list, new_list);
2331 mono_image_lock (MonoImage *image)
2333 mono_locks_acquire (&image->lock, ImageDataLock);
2337 mono_image_unlock (MonoImage *image)
2339 mono_locks_release (&image->lock, ImageDataLock);
2344 * mono_image_property_lookup:
2346 * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
2348 * LOCKING: Takes the image lock
2351 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
2355 mono_image_lock (image);
2356 res = mono_property_hash_lookup (image->property_hash, subject, property);
2357 mono_image_unlock (image);
2363 * mono_image_property_insert:
2365 * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2367 * LOCKING: Takes the image lock
2370 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
2372 mono_image_lock (image);
2373 mono_property_hash_insert (image->property_hash, subject, property, value);
2374 mono_image_unlock (image);
2378 * mono_image_property_remove:
2380 * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2382 * LOCKING: Takes the image lock
2385 mono_image_property_remove (MonoImage *image, gpointer subject)
2387 mono_image_lock (image);
2388 mono_property_hash_remove_object (image->property_hash, subject);
2389 mono_image_unlock (image);
2393 mono_image_append_class_to_reflection_info_set (MonoClass *class)
2395 MonoImage *image = class->image;
2396 g_assert (image_is_dynamic (image));
2397 mono_image_lock (image);
2398 image->reflection_info_unregister_classes = g_slist_prepend_mempool (image->mempool, image->reflection_info_unregister_classes, class);
2399 mono_image_unlock (image);