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;
156 if (image->is_module_handle) {
157 if (addr && addr < image->raw_data_len)
158 return image->raw_data + addr;
164 for (i = 0; i < top; i++){
165 if ((addr >= tables->st_virtual_address) &&
166 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
167 if (!iinfo->cli_sections [i]) {
168 if (!mono_image_ensure_section_idx (image, i))
171 return (char*)iinfo->cli_sections [i] +
172 (addr - tables->st_virtual_address);
182 * Initialize the global variables used by this module.
185 mono_images_init (void)
187 InitializeCriticalSection (&images_mutex);
189 loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
190 loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
192 debug_assembly_unload = g_getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
198 * mono_images_cleanup:
200 * Free all resources used by this module.
203 mono_images_cleanup (void)
208 DeleteCriticalSection (&images_mutex);
210 g_hash_table_iter_init (&iter, loaded_images_hash);
211 while (g_hash_table_iter_next (&iter, NULL, (void**)&image))
212 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly image '%s' still loaded at shutdown.", image->name);
214 g_hash_table_destroy (loaded_images_hash);
215 g_hash_table_destroy (loaded_images_refonly_hash);
217 mutex_inited = FALSE;
221 * mono_image_ensure_section_idx:
222 * @image: The image we are operating on
223 * @section: section number that we will load/map into memory
225 * This routine makes sure that we have an in-memory copy of
226 * an image section (.text, .rsrc, .data).
228 * Returns: TRUE on success
231 mono_image_ensure_section_idx (MonoImage *image, int section)
233 MonoCLIImageInfo *iinfo = image->image_info;
234 MonoSectionTable *sect;
237 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
239 if (iinfo->cli_sections [section] != NULL)
242 sect = &iinfo->cli_section_tables [section];
244 writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
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;
481 guint64 valid_mask, sorted_mask;
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 sorted_mask = read64 (heap_tables + 16);
492 rows = (const guint32 *) (heap_tables + 24);
494 for (table = 0; table < 64; table++){
495 if ((valid_mask & ((guint64) 1 << table)) == 0){
496 if (table > MONO_TABLE_LAST)
498 image->tables [table].rows = 0;
501 if (table > MONO_TABLE_LAST) {
502 g_warning("bits in valid must be zero above 0x2d (II - 23.1.6)");
504 image->tables [table].rows = read32 (rows);
506 /*if ((sorted_mask & ((guint64) 1 << table)) == 0){
507 g_print ("table %s (0x%02x) is sorted\n", mono_meta_table_name (table), table);
513 image->tables_base = (heap_tables + 24) + (4 * valid);
515 /* They must be the same */
516 g_assert ((const void *) image->tables_base == (const void *) rows);
518 mono_metadata_compute_table_bases (image);
523 load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
525 if (!load_metadata_ptrs (image, iinfo))
528 return load_tables (image);
532 mono_image_check_for_module_cctor (MonoImage *image)
534 MonoTableInfo *t, *mt;
535 t = &image->tables [MONO_TABLE_TYPEDEF];
536 mt = &image->tables [MONO_TABLE_METHOD];
537 if (image->dynamic) {
539 image->checked_module_cctor = TRUE;
543 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
544 const char *name = mono_metadata_string_heap (image, nameidx);
545 if (strcmp (name, "<Module>") == 0) {
546 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
549 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
551 last_method = mt->rows;
552 for (; first_method < last_method; first_method++) {
553 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
554 name = mono_metadata_string_heap (image, nameidx);
555 if (strcmp (name, ".cctor") == 0) {
556 image->has_module_cctor = TRUE;
557 image->checked_module_cctor = TRUE;
563 image->has_module_cctor = FALSE;
564 image->checked_module_cctor = TRUE;
568 load_modules (MonoImage *image)
575 t = &image->tables [MONO_TABLE_MODULEREF];
576 image->modules = g_new0 (MonoImage *, t->rows);
577 image->modules_loaded = g_new0 (gboolean, t->rows);
578 image->module_count = t->rows;
582 * mono_image_load_module:
584 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
585 * it cannot be loaded.
588 mono_image_load_module (MonoImage *image, int idx)
591 MonoTableInfo *file_table;
594 gboolean refonly = image->ref_only;
595 GList *list_iter, *valid_modules = NULL;
596 MonoImageOpenStatus status;
598 if ((image->module_count == 0) || (idx > image->module_count || idx <= 0))
600 if (image->modules_loaded [idx - 1])
601 return image->modules [idx - 1];
603 file_table = &image->tables [MONO_TABLE_FILE];
604 for (i = 0; i < file_table->rows; i++) {
605 guint32 cols [MONO_FILE_SIZE];
606 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
607 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
609 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
612 t = &image->tables [MONO_TABLE_MODULEREF];
613 base_dir = g_path_get_dirname (image->name);
618 guint32 cols [MONO_MODULEREF_SIZE];
619 /* if there is no file table, we try to load the module... */
620 int valid = file_table->rows == 0;
622 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
623 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
624 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
625 /* be safe with string dups, but we could just compare string indexes */
626 if (strcmp (list_iter->data, name) == 0) {
632 module_ref = g_build_filename (base_dir, name, NULL);
633 image->modules [idx - 1] = mono_image_open_full (module_ref, &status, refonly);
634 if (image->modules [idx - 1]) {
635 mono_image_addref (image->modules [idx - 1]);
636 image->modules [idx - 1]->assembly = image->assembly;
638 if (image->modules [idx - 1]->is_module_handle)
639 mono_image_fixup_vtable (image->modules [idx - 1]);
641 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
647 image->modules_loaded [idx - 1] = TRUE;
650 g_list_free (valid_modules);
652 return image->modules [idx - 1];
656 class_key_extract (gpointer value)
658 MonoClass *class = value;
660 return GUINT_TO_POINTER (class->type_token);
664 class_next_value (gpointer value)
666 MonoClass *class = value;
668 return (gpointer*)&class->next_class_cache;
672 mono_image_init (MonoImage *image)
674 image->mempool = mono_mempool_new_size (512);
675 mono_internal_hash_table_init (&image->class_cache,
679 image->field_cache = g_hash_table_new (NULL, NULL);
681 image->typespec_cache = g_hash_table_new (NULL, NULL);
682 image->memberref_signatures = g_hash_table_new (NULL, NULL);
683 image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
684 image->method_signatures = g_hash_table_new (NULL, NULL);
686 image->property_hash = mono_property_hash_new ();
687 InitializeCriticalSection (&image->lock);
688 InitializeCriticalSection (&image->szarray_cache_lock);
691 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
692 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
693 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
694 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
695 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
704 * Returns < 0 to indicate an error.
707 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
709 MonoDotNetHeader64 header64;
712 if (!image->is_module_handle)
714 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
717 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
719 if (header->pesig [0] != 'P' || header->pesig [1] != 'E')
722 /* endian swap the fields common between PE and PE+ */
723 SWAP32 (header->coff.coff_time);
724 SWAP32 (header->coff.coff_symptr);
725 SWAP32 (header->coff.coff_symcount);
726 SWAP16 (header->coff.coff_machine);
727 SWAP16 (header->coff.coff_sections);
728 SWAP16 (header->coff.coff_opt_header_size);
729 SWAP16 (header->coff.coff_attributes);
731 SWAP32 (header->pe.pe_code_size);
732 SWAP32 (header->pe.pe_uninit_data_size);
733 SWAP32 (header->pe.pe_rva_entry_point);
734 SWAP32 (header->pe.pe_rva_code_base);
735 SWAP32 (header->pe.pe_rva_data_base);
736 SWAP16 (header->pe.pe_magic);
738 /* now we are ready for the basic tests */
740 if (header->pe.pe_magic == 0x10B) {
741 offset += sizeof (MonoDotNetHeader);
742 SWAP32 (header->pe.pe_data_size);
743 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
746 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
747 SWAP32 (header->nt.pe_stack_reserve);
748 SWAP32 (header->nt.pe_stack_commit);
749 SWAP32 (header->nt.pe_heap_reserve);
750 SWAP32 (header->nt.pe_heap_commit);
751 } else if (header->pe.pe_magic == 0x20B) {
752 /* PE32+ file format */
753 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
755 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
756 offset += sizeof (MonoDotNetHeader64);
757 /* copy the fields already swapped. the last field, pe_data_size, is missing */
758 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
759 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
760 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
762 SWAP64 (header64.nt.pe_image_base);
763 header->nt.pe_image_base = header64.nt.pe_image_base;
764 SWAP64 (header64.nt.pe_stack_reserve);
765 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
766 SWAP64 (header64.nt.pe_stack_commit);
767 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
768 SWAP64 (header64.nt.pe_heap_reserve);
769 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
770 SWAP64 (header64.nt.pe_heap_commit);
771 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
773 header->nt.pe_section_align = header64.nt.pe_section_align;
774 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
775 header->nt.pe_os_major = header64.nt.pe_os_major;
776 header->nt.pe_os_minor = header64.nt.pe_os_minor;
777 header->nt.pe_user_major = header64.nt.pe_user_major;
778 header->nt.pe_user_minor = header64.nt.pe_user_minor;
779 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
780 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
781 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
782 header->nt.pe_image_size = header64.nt.pe_image_size;
783 header->nt.pe_header_size = header64.nt.pe_header_size;
784 header->nt.pe_checksum = header64.nt.pe_checksum;
785 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
786 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
787 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
788 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
790 /* copy the datadir */
791 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
796 /* MonoPEHeaderNT: not used yet */
797 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
798 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
799 SWAP16 (header->nt.pe_os_major); /* must be 4 */
800 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
801 SWAP16 (header->nt.pe_user_major);
802 SWAP16 (header->nt.pe_user_minor);
803 SWAP16 (header->nt.pe_subsys_major);
804 SWAP16 (header->nt.pe_subsys_minor);
805 SWAP32 (header->nt.pe_reserved_1);
806 SWAP32 (header->nt.pe_image_size);
807 SWAP32 (header->nt.pe_header_size);
808 SWAP32 (header->nt.pe_checksum);
809 SWAP16 (header->nt.pe_subsys_required);
810 SWAP16 (header->nt.pe_dll_flags);
811 SWAP32 (header->nt.pe_loader_flags);
812 SWAP32 (header->nt.pe_data_dir_count);
814 /* MonoDotNetHeader: mostly unused */
815 SWAPPDE (header->datadir.pe_export_table);
816 SWAPPDE (header->datadir.pe_import_table);
817 SWAPPDE (header->datadir.pe_resource_table);
818 SWAPPDE (header->datadir.pe_exception_table);
819 SWAPPDE (header->datadir.pe_certificate_table);
820 SWAPPDE (header->datadir.pe_reloc_table);
821 SWAPPDE (header->datadir.pe_debug);
822 SWAPPDE (header->datadir.pe_copyright);
823 SWAPPDE (header->datadir.pe_global_ptr);
824 SWAPPDE (header->datadir.pe_tls_table);
825 SWAPPDE (header->datadir.pe_load_config_table);
826 SWAPPDE (header->datadir.pe_bound_import);
827 SWAPPDE (header->datadir.pe_iat);
828 SWAPPDE (header->datadir.pe_delay_import_desc);
829 SWAPPDE (header->datadir.pe_cli_header);
830 SWAPPDE (header->datadir.pe_reserved);
833 if (image->is_module_handle)
834 image->raw_data_len = header->nt.pe_image_size;
841 mono_image_load_pe_data (MonoImage *image)
843 MonoCLIImageInfo *iinfo;
844 MonoDotNetHeader *header;
845 MonoMSDOSHeader msdos;
848 iinfo = image->image_info;
849 header = &iinfo->cli_header;
852 if (!image->is_module_handle)
854 if (offset + sizeof (msdos) > image->raw_data_len)
856 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
858 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
861 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
863 offset = msdos.pe_offset;
865 offset = do_load_header (image, header, offset);
870 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
872 if (header->coff.coff_machine != 0x14c)
878 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
879 * which produces binaries with 7.0. From Sergey:
881 * The reason is that MSVC7 uses traditional compile/link
882 * sequence for CIL executables, and VS.NET (and Framework
883 * SDK) includes linker version 7, that puts 7.0 in this
884 * field. That's why it's currently not possible to load VC
885 * binaries with Mono. This field is pretty much meaningless
886 * anyway (what linker?).
888 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
893 * FIXME: byte swap all addresses here for header.
896 if (!load_section_tables (image, iinfo, offset))
906 mono_image_load_cli_data (MonoImage *image)
908 MonoCLIImageInfo *iinfo;
909 MonoDotNetHeader *header;
911 iinfo = image->image_info;
912 header = &iinfo->cli_header;
914 /* Load the CLI header */
915 if (!load_cli_header (image, iinfo))
918 if (!load_metadata (image, iinfo))
925 mono_image_load_names (MonoImage *image)
927 /* modules don't have an assembly table row */
928 if (image->tables [MONO_TABLE_ASSEMBLY].rows) {
929 image->assembly_name = mono_metadata_string_heap (image,
930 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
931 0, MONO_ASSEMBLY_NAME));
934 image->module_name = mono_metadata_string_heap (image,
935 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
936 0, MONO_MODULE_NAME));
940 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
941 gboolean care_about_cli, gboolean care_about_pecoff)
943 MonoCLIImageInfo *iinfo;
944 MonoDotNetHeader *header;
945 GSList *errors = NULL;
947 mono_profiler_module_event (image, MONO_PROFILE_START_LOAD);
949 mono_image_init (image);
951 iinfo = image->image_info;
952 header = &iinfo->cli_header;
955 *status = MONO_IMAGE_IMAGE_INVALID;
957 if (care_about_pecoff == FALSE)
960 if (!mono_verifier_verify_pe_data (image, &errors))
963 if (!mono_image_load_pe_data (image))
966 if (care_about_cli == FALSE) {
970 if (!mono_verifier_verify_cli_data (image, &errors))
973 if (!mono_image_load_cli_data (image))
976 if (!mono_verifier_verify_table_data (image, &errors))
979 mono_image_load_names (image);
981 load_modules (image);
984 mono_profiler_module_loaded (image, MONO_PROFILE_OK);
986 *status = MONO_IMAGE_OK;
992 MonoVerifyInfo *info = errors->data;
993 g_warning ("Could not load image %s due to %s", image->name, info->message);
994 mono_free_verify_list (errors);
996 mono_profiler_module_loaded (image, MONO_PROFILE_FAILED);
997 mono_image_close (image);
1002 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
1003 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly)
1005 MonoCLIImageInfo *iinfo;
1009 if ((filed = mono_file_map_open (fname)) == NULL){
1010 if (IS_PORTABILITY_SET) {
1011 gchar *ffname = mono_portability_find_file (fname, TRUE);
1013 filed = mono_file_map_open (ffname);
1018 if (filed == NULL) {
1020 *status = MONO_IMAGE_ERROR_ERRNO;
1025 image = g_new0 (MonoImage, 1);
1026 image->raw_buffer_used = TRUE;
1027 image->raw_data_len = mono_file_map_size (filed);
1028 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);
1029 #if defined(HAVE_MMAP) && !defined (HOST_WIN32)
1030 if (!image->raw_data) {
1031 image->fileio_used = TRUE;
1032 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);
1035 if (!image->raw_data) {
1036 mono_file_map_close (filed);
1039 *status = MONO_IMAGE_IMAGE_INVALID;
1042 iinfo = g_new0 (MonoCLIImageInfo, 1);
1043 image->image_info = iinfo;
1044 image->name = mono_path_resolve_symlinks (fname);
1045 image->ref_only = refonly;
1046 image->ref_count = 1;
1047 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
1048 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
1050 mono_file_map_close (filed);
1051 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
1055 mono_image_loaded_full (const char *name, gboolean refonly)
1058 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1060 mono_images_lock ();
1061 res = g_hash_table_lookup (loaded_images, name);
1062 mono_images_unlock ();
1067 * mono_image_loaded:
1068 * @name: name of the image to load
1070 * This routine ensures that the given image is loaded.
1072 * Returns: the loaded MonoImage, or NULL on failure.
1075 mono_image_loaded (const char *name)
1077 return mono_image_loaded_full (name, FALSE);
1086 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1088 GuidData *data = user_data;
1094 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1099 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1102 GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1106 mono_images_lock ();
1107 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1108 mono_images_unlock ();
1113 mono_image_loaded_by_guid (const char *guid)
1115 return mono_image_loaded_by_guid_full (guid, FALSE);
1119 register_image (MonoImage *image)
1122 GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1124 mono_images_lock ();
1125 image2 = g_hash_table_lookup (loaded_images, image->name);
1128 /* Somebody else beat us to it */
1129 mono_image_addref (image2);
1130 mono_images_unlock ();
1131 mono_image_close (image);
1134 g_hash_table_insert (loaded_images, image->name, image);
1135 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
1136 g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
1137 mono_images_unlock ();
1143 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1145 MonoCLIImageInfo *iinfo;
1149 if (!data || !data_len) {
1151 *status = MONO_IMAGE_IMAGE_INVALID;
1156 datac = g_try_malloc (data_len);
1159 *status = MONO_IMAGE_ERROR_ERRNO;
1162 memcpy (datac, data, data_len);
1165 image = g_new0 (MonoImage, 1);
1166 image->raw_data = datac;
1167 image->raw_data_len = data_len;
1168 image->raw_data_allocated = need_copy;
1169 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1170 iinfo = g_new0 (MonoCLIImageInfo, 1);
1171 image->image_info = iinfo;
1172 image->ref_only = refonly;
1174 image = do_mono_image_load (image, status, TRUE, TRUE);
1178 return register_image (image);
1182 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1184 return mono_image_open_from_data_with_name (data, data_len, need_copy, status, refonly, NULL);
1188 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1190 return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
1194 /* fname is not duplicated. */
1196 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1199 MonoCLIImageInfo* iinfo;
1201 image = g_new0 (MonoImage, 1);
1202 image->raw_data = (char*) module_handle;
1203 image->is_module_handle = TRUE;
1204 iinfo = g_new0 (MonoCLIImageInfo, 1);
1205 image->image_info = iinfo;
1206 image->name = fname;
1207 image->ref_count = has_entry_point ? 0 : 1;
1208 image->has_entry_point = has_entry_point;
1210 image = do_mono_image_load (image, status, TRUE, TRUE);
1214 return register_image (image);
1219 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1222 GHashTable *loaded_images;
1225 g_return_val_if_fail (fname != NULL, NULL);
1228 /* Load modules using LoadLibrary. */
1229 if (!refonly && coree_module_handle) {
1230 HMODULE module_handle;
1231 guint16 *fname_utf16;
1234 absfname = mono_path_resolve_symlinks (fname);
1237 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1238 mono_images_lock ();
1239 image = g_hash_table_lookup (loaded_images_hash, absfname);
1241 g_assert (image->is_module_handle);
1242 if (image->has_entry_point && image->ref_count == 0) {
1243 /* Increment reference count on images loaded outside of the runtime. */
1244 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1245 /* The image is already loaded because _CorDllMain removes images from the hash. */
1246 module_handle = LoadLibrary (fname_utf16);
1247 g_assert (module_handle == (HMODULE) image->raw_data);
1249 mono_image_addref (image);
1250 mono_images_unlock ();
1252 g_free (fname_utf16);
1257 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1258 module_handle = MonoLoadImage (fname_utf16);
1259 if (status && module_handle == NULL)
1260 last_error = GetLastError ();
1262 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1263 image = g_hash_table_lookup (loaded_images_hash, absfname);
1265 mono_image_addref (image);
1266 mono_images_unlock ();
1268 g_free (fname_utf16);
1270 if (module_handle == NULL) {
1274 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT)
1275 *status = MONO_IMAGE_IMAGE_INVALID;
1277 if (last_error == ERROR_FILE_NOT_FOUND || last_error == ERROR_PATH_NOT_FOUND)
1287 g_assert (image->is_module_handle);
1288 g_assert (image->has_entry_point);
1293 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
1297 absfname = mono_path_canonicalize (fname);
1300 * The easiest solution would be to do all the loading inside the mutex,
1301 * but that would lead to scalability problems. So we let the loading
1302 * happen outside the mutex, and if multiple threads happen to load
1303 * the same image, we discard all but the first copy.
1305 mono_images_lock ();
1306 loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
1307 image = g_hash_table_lookup (loaded_images, absfname);
1311 mono_image_addref (image);
1312 mono_images_unlock ();
1315 mono_images_unlock ();
1317 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly);
1321 return register_image (image);
1326 * @fname: filename that points to the module we want to open
1327 * @status: An error condition is returned in this field
1329 * Returns: An open image of type %MonoImage or NULL on error.
1330 * The caller holds a temporary reference to the returned image which should be cleared
1331 * when no longer needed by calling mono_image_close ().
1332 * if NULL, then check the value of @status for details on the error
1335 mono_image_open (const char *fname, MonoImageOpenStatus *status)
1337 return mono_image_open_full (fname, status, FALSE);
1341 * mono_pe_file_open:
1342 * @fname: filename that points to the module we want to open
1343 * @status: An error condition is returned in this field
1345 * Returns: An open image of type %MonoImage or NULL on error. if
1346 * NULL, then check the value of @status for details on the error.
1347 * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
1348 * It's just a PE file loader, used for FileVersionInfo. It also does
1349 * not use the image cache.
1352 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
1354 g_return_val_if_fail (fname != NULL, NULL);
1356 return(do_mono_image_open (fname, status, FALSE, TRUE, FALSE));
1360 * mono_image_open_raw
1361 * @fname: filename that points to the module we want to open
1362 * @status: An error condition is returned in this field
1364 * Returns an image without loading neither pe or cli data.
1366 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
1369 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
1371 g_return_val_if_fail (fname != NULL, NULL);
1373 return(do_mono_image_open (fname, status, FALSE, FALSE, FALSE));
1377 mono_image_fixup_vtable (MonoImage *image)
1380 MonoCLIImageInfo *iinfo;
1382 MonoVTableFixup *vtfixup;
1388 g_assert (image->is_module_handle);
1390 iinfo = image->image_info;
1391 de = &iinfo->cli_cli_header.ch_vtable_fixups;
1392 if (!de->rva || !de->size)
1394 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
1398 count = de->size / sizeof (MonoVTableFixup);
1400 if (!vtfixup->rva || !vtfixup->count)
1403 slot = mono_image_rva_map (image, vtfixup->rva);
1405 slot_type = vtfixup->type;
1406 slot_count = vtfixup->count;
1407 if (slot_type & VTFIXUP_TYPE_32BIT)
1408 while (slot_count--) {
1409 *((guint32*) slot) = (guint32) mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
1410 slot = ((guint32*) slot) + 1;
1412 else if (slot_type & VTFIXUP_TYPE_64BIT)
1413 while (slot_count--) {
1414 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
1415 slot = ((guint32*) slot) + 1;
1418 g_assert_not_reached();
1423 g_assert_not_reached();
1428 free_hash_table (gpointer key, gpointer val, gpointer user_data)
1430 g_hash_table_destroy ((GHashTable*)val);
1435 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
1437 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
1442 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
1444 g_slist_free ((GSList*)val);
1448 * mono_image_addref:
1449 * @image: The image file we wish to add a reference to
1451 * Increases the reference count of an image.
1454 mono_image_addref (MonoImage *image)
1456 InterlockedIncrement (&image->ref_count);
1460 mono_dynamic_stream_reset (MonoDynamicStream* stream)
1462 stream->alloc_size = stream->index = stream->offset = 0;
1463 g_free (stream->data);
1464 stream->data = NULL;
1466 g_hash_table_destroy (stream->hash);
1467 stream->hash = NULL;
1472 free_hash (GHashTable *hash)
1475 g_hash_table_destroy (hash);
1479 * Returns whether mono_image_close_finish() must be called as well.
1480 * We must unload images in two steps because clearing the domain in
1481 * SGen requires the class metadata to be intact, but we need to free
1482 * the mono_g_hash_tables in case a collection occurs during domain
1483 * unloading and the roots would trip up the GC.
1486 mono_image_close_except_pools (MonoImage *image)
1489 GHashTable *loaded_images;
1493 g_return_val_if_fail (image != NULL, FALSE);
1496 * Atomically decrement the refcount and remove ourselves from the hash tables, so
1497 * register_image () can't grab an image which is being closed.
1499 mono_images_lock ();
1501 if (InterlockedDecrement (&image->ref_count) > 0) {
1502 mono_images_unlock ();
1506 loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
1507 image2 = g_hash_table_lookup (loaded_images, image->name);
1508 if (image == image2) {
1509 /* This is not true if we are called from mono_image_open () */
1510 g_hash_table_remove (loaded_images, image->name);
1512 if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
1513 g_hash_table_remove (loaded_images, (char *) image->assembly_name);
1515 mono_images_unlock ();
1518 if (image->is_module_handle && image->has_entry_point) {
1519 mono_images_lock ();
1520 if (image->ref_count == 0) {
1521 /* Image will be closed by _CorDllMain. */
1522 FreeLibrary ((HMODULE) image->raw_data);
1523 mono_images_unlock ();
1526 mono_images_unlock ();
1530 mono_profiler_module_event (image, MONO_PROFILE_START_UNLOAD);
1532 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
1534 mono_image_invoke_unload_hook (image);
1536 free_list = mono_metadata_clean_for_image (image);
1539 * The caches inside a MonoImage might refer to metadata which is stored in referenced
1540 * assemblies, so we can't release these references in mono_assembly_close () since the
1541 * MonoImage might outlive its associated MonoAssembly.
1543 if (image->references && !image->dynamic) {
1544 for (i = 0; i < image->nreferences; i++) {
1545 if (image->references [i] && image->references [i] != REFERENCE_MISSING) {
1546 if (!mono_assembly_close_except_image_pools (image->references [i]))
1547 image->references [i] = NULL;
1551 if (image->references) {
1552 g_free (image->references);
1553 image->references = NULL;
1558 mono_images_lock ();
1559 if (image->is_module_handle && !image->has_entry_point)
1560 FreeLibrary ((HMODULE) image->raw_data);
1561 mono_images_unlock ();
1564 if (image->raw_buffer_used) {
1565 if (image->raw_data != NULL) {
1567 if (image->fileio_used)
1568 mono_file_unmap_fileio (image->raw_data, image->raw_data_handle);
1571 mono_file_unmap (image->raw_data, image->raw_data_handle);
1575 if (image->raw_data_allocated) {
1576 /* FIXME: do we need this? (image is disposed anyway) */
1577 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
1578 MonoCLIImageInfo *ii = image->image_info;
1580 if ((image->raw_metadata > image->raw_data) &&
1581 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
1582 image->raw_metadata = NULL;
1584 for (i = 0; i < ii->cli_section_count; i++)
1585 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
1586 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
1587 ii->cli_sections [i] = NULL;
1589 g_free (image->raw_data);
1592 if (debug_assembly_unload) {
1593 image->name = g_strdup_printf ("%s - UNLOADED", image->name);
1595 g_free (image->name);
1596 g_free (image->guid);
1597 g_free (image->version);
1598 g_free (image->files);
1601 if (image->method_cache)
1602 g_hash_table_destroy (image->method_cache);
1603 if (image->methodref_cache)
1604 g_hash_table_destroy (image->methodref_cache);
1605 mono_internal_hash_table_destroy (&image->class_cache);
1606 g_hash_table_destroy (image->field_cache);
1607 if (image->array_cache) {
1608 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
1609 g_hash_table_destroy (image->array_cache);
1611 if (image->szarray_cache)
1612 g_hash_table_destroy (image->szarray_cache);
1613 if (image->ptr_cache)
1614 g_hash_table_destroy (image->ptr_cache);
1615 if (image->name_cache) {
1616 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
1617 g_hash_table_destroy (image->name_cache);
1620 free_hash (image->native_wrapper_cache);
1621 free_hash (image->managed_wrapper_cache);
1622 free_hash (image->delegate_begin_invoke_cache);
1623 free_hash (image->delegate_end_invoke_cache);
1624 free_hash (image->delegate_invoke_cache);
1625 free_hash (image->delegate_abstract_invoke_cache);
1626 free_hash (image->delegate_bound_static_invoke_cache);
1627 free_hash (image->delegate_invoke_generic_cache);
1628 free_hash (image->delegate_begin_invoke_generic_cache);
1629 free_hash (image->delegate_end_invoke_generic_cache);
1630 free_hash (image->synchronized_generic_cache);
1631 free_hash (image->remoting_invoke_cache);
1632 free_hash (image->runtime_invoke_cache);
1633 free_hash (image->runtime_invoke_vtype_cache);
1634 free_hash (image->runtime_invoke_direct_cache);
1635 free_hash (image->runtime_invoke_vcall_cache);
1636 free_hash (image->synchronized_cache);
1637 free_hash (image->unbox_wrapper_cache);
1638 free_hash (image->cominterop_invoke_cache);
1639 free_hash (image->cominterop_wrapper_cache);
1640 free_hash (image->typespec_cache);
1641 free_hash (image->ldfld_wrapper_cache);
1642 free_hash (image->ldflda_wrapper_cache);
1643 free_hash (image->stfld_wrapper_cache);
1644 free_hash (image->isinst_cache);
1645 free_hash (image->castclass_cache);
1646 free_hash (image->proxy_isinst_cache);
1647 free_hash (image->thunk_invoke_cache);
1648 free_hash (image->var_cache_slow);
1649 free_hash (image->mvar_cache_slow);
1650 free_hash (image->wrapper_param_names);
1651 free_hash (image->native_wrapper_aot_cache);
1652 free_hash (image->pinvoke_scopes);
1653 free_hash (image->pinvoke_scope_filenames);
1655 /* The ownership of signatures is not well defined */
1656 //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
1657 g_hash_table_destroy (image->memberref_signatures);
1658 //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
1659 g_hash_table_destroy (image->helper_signatures);
1660 g_hash_table_destroy (image->method_signatures);
1662 if (image->rgctx_template_hash)
1663 g_hash_table_destroy (image->rgctx_template_hash);
1665 if (image->property_hash)
1666 mono_property_hash_destroy (image->property_hash);
1668 g_slist_free (image->reflection_info_unregister_classes);
1669 image->reflection_info_unregister_classes = free_list;
1671 if (image->interface_bitset) {
1672 mono_unload_interface_ids (image->interface_bitset);
1673 mono_bitset_free (image->interface_bitset);
1675 if (image->image_info){
1676 MonoCLIImageInfo *ii = image->image_info;
1678 if (ii->cli_section_tables)
1679 g_free (ii->cli_section_tables);
1680 if (ii->cli_sections)
1681 g_free (ii->cli_sections);
1682 g_free (image->image_info);
1685 for (i = 0; i < image->module_count; ++i) {
1686 if (image->modules [i]) {
1687 if (!mono_image_close_except_pools (image->modules [i]))
1688 image->modules [i] = NULL;
1691 if (image->modules_loaded)
1692 g_free (image->modules_loaded);
1694 DeleteCriticalSection (&image->szarray_cache_lock);
1695 DeleteCriticalSection (&image->lock);
1697 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
1698 if (image->dynamic) {
1699 /* Dynamic images are GC_MALLOCed */
1700 g_free ((char*)image->module_name);
1701 mono_dynamic_image_free ((MonoDynamicImage*)image);
1704 mono_profiler_module_event (image, MONO_PROFILE_END_UNLOAD);
1710 mono_image_close_finish (MonoImage *image)
1715 for (l = image->reflection_info_unregister_classes; l; l = l->next)
1717 g_slist_free (image->reflection_info_unregister_classes);
1718 image->reflection_info_unregister_classes = NULL;
1720 if (image->references && !image->dynamic) {
1721 for (i = 0; i < image->nreferences; i++) {
1722 if (image->references [i] && image->references [i] != REFERENCE_MISSING)
1723 mono_assembly_close_finish (image->references [i]);
1726 g_free (image->references);
1727 image->references = NULL;
1730 for (i = 0; i < image->module_count; ++i) {
1731 if (image->modules [i])
1732 mono_image_close_finish (image->modules [i]);
1735 g_free (image->modules);
1737 #ifndef DISABLE_PERFCOUNTERS
1738 mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
1741 if (!image->dynamic) {
1742 if (debug_assembly_unload)
1743 mono_mempool_invalidate (image->mempool);
1745 mono_mempool_destroy (image->mempool);
1749 if (debug_assembly_unload)
1750 mono_mempool_invalidate (image->mempool);
1752 mono_mempool_destroy (image->mempool);
1758 * @image: The image file we wish to close
1760 * Closes an image file, deallocates all memory consumed and
1761 * unmaps all possible sections of the file
1764 mono_image_close (MonoImage *image)
1766 if (mono_image_close_except_pools (image))
1767 mono_image_close_finish (image);
1771 * mono_image_strerror:
1772 * @status: an code indicating the result from a recent operation
1774 * Returns: a string describing the error
1777 mono_image_strerror (MonoImageOpenStatus status)
1782 case MONO_IMAGE_ERROR_ERRNO:
1783 return strerror (errno);
1784 case MONO_IMAGE_IMAGE_INVALID:
1785 return "File does not contain a valid CIL image";
1786 case MONO_IMAGE_MISSING_ASSEMBLYREF:
1787 return "An assembly was referenced, but could not be found";
1789 return "Internal error";
1793 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
1794 guint32 lang_id, gunichar2 *name,
1795 MonoPEResourceDirEntry *entry,
1796 MonoPEResourceDir *root, guint32 level)
1798 gboolean is_string, is_dir;
1799 guint32 name_offset, dir_offset;
1801 /* Level 0 holds a directory entry for each type of resource
1802 * (identified by ID or name).
1804 * Level 1 holds a directory entry for each named resource
1805 * item, and each "anonymous" item of a particular type of
1808 * Level 2 holds a directory entry for each language pointing to
1811 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
1812 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
1814 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
1815 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
1820 } else if (level==1) {
1821 if (res_id != name_offset)
1825 is_string==TRUE && name!=lookup (name_offset)) {
1829 } else if (level==2) {
1830 if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
1833 g_assert_not_reached ();
1837 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
1838 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
1841 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
1843 for(i=0; i<entries; i++) {
1844 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
1847 ret=mono_image_walk_resource_tree (info, res_id,
1858 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
1859 MonoPEResourceDataEntry *res;
1861 res = g_new0 (MonoPEResourceDataEntry, 1);
1863 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
1864 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
1865 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
1866 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
1873 * mono_image_lookup_resource:
1874 * @image: the image to look up the resource in
1875 * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
1876 * @lang_id: The language id.
1877 * @name: the resource name to lookup.
1879 * Returns: NULL if not found, otherwise a pointer to the in-memory representation
1880 * of the given resource. The caller should free it using g_free () when no longer
1884 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
1886 MonoCLIImageInfo *info;
1887 MonoDotNetHeader *header;
1888 MonoPEDatadir *datadir;
1889 MonoPEDirEntry *rsrc;
1890 MonoPEResourceDir *resource_dir;
1891 MonoPEResourceDirEntry *res_entries;
1898 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
1900 info=image->image_info;
1905 header=&info->cli_header;
1910 datadir=&header->datadir;
1915 rsrc=&datadir->pe_resource_table;
1920 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
1921 if(resource_dir==NULL) {
1925 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
1926 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
1928 for(i=0; i<entries; i++) {
1929 MonoPEResourceDirEntry *entry=&res_entries[i];
1932 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
1933 name, entry, resource_dir,
1944 * mono_image_get_entry_point:
1945 * @image: the image where the entry point will be looked up.
1947 * Use this routine to determine the metadata token for method that
1948 * has been flagged as the entry point.
1950 * Returns: the token for the entry point method in the image
1953 mono_image_get_entry_point (MonoImage *image)
1955 return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
1959 * mono_image_get_resource:
1960 * @image: the image where the resource will be looked up.
1961 * @offset: The offset to add to the resource
1962 * @size: a pointer to an int where the size of the resource will be stored
1964 * This is a low-level routine that fetches a resource from the
1965 * metadata that starts at a given @offset. The @size parameter is
1966 * filled with the data field as encoded in the metadata.
1968 * Returns: the pointer to the resource whose offset is @offset.
1971 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
1973 MonoCLIImageInfo *iinfo = image->image_info;
1974 MonoCLIHeader *ch = &iinfo->cli_cli_header;
1977 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
1980 data = mono_image_rva_map (image, ch->ch_resources.rva);
1985 *size = read32 (data);
1991 mono_image_load_file_for_image (MonoImage *image, int fileidx)
1993 char *base_dir, *name;
1995 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
1999 if (fileidx < 1 || fileidx > t->rows)
2002 mono_loader_lock ();
2003 if (image->files && image->files [fileidx - 1]) {
2004 mono_loader_unlock ();
2005 return image->files [fileidx - 1];
2009 image->files = g_new0 (MonoImage*, t->rows);
2011 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
2012 fname = mono_metadata_string_heap (image, fname_id);
2013 base_dir = g_path_get_dirname (image->name);
2014 name = g_build_filename (base_dir, fname, NULL);
2015 res = mono_image_open (name, NULL);
2018 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
2019 res->assembly = image->assembly;
2020 for (i = 0; i < res->module_count; ++i) {
2021 if (res->modules [i] && !res->modules [i]->assembly)
2022 res->modules [i]->assembly = image->assembly;
2025 image->files [fileidx - 1] = res;
2027 if (res->is_module_handle)
2028 mono_image_fixup_vtable (res);
2031 mono_loader_unlock ();
2038 * mono_image_get_strong_name:
2039 * @image: a MonoImage
2040 * @size: a guint32 pointer, or NULL.
2042 * If the image has a strong name, and @size is not NULL, the value
2043 * pointed to by size will have the size of the strong name.
2045 * Returns: NULL if the image does not have a strong name, or a
2046 * pointer to the public key.
2049 mono_image_get_strong_name (MonoImage *image, guint32 *size)
2051 MonoCLIImageInfo *iinfo = image->image_info;
2052 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2055 if (!de->size || !de->rva)
2057 data = mono_image_rva_map (image, de->rva);
2066 * mono_image_strong_name_position:
2067 * @image: a MonoImage
2068 * @size: a guint32 pointer, or NULL.
2070 * If the image has a strong name, and @size is not NULL, the value
2071 * pointed to by size will have the size of the strong name.
2073 * Returns: the position within the image file where the strong name
2077 mono_image_strong_name_position (MonoImage *image, guint32 *size)
2079 MonoCLIImageInfo *iinfo = image->image_info;
2080 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2085 if (!de->size || !de->rva)
2087 pos = mono_cli_rva_image_map (image, de->rva);
2088 return pos == INVALID_ADDRESS ? 0 : pos;
2092 * mono_image_get_public_key:
2093 * @image: a MonoImage
2094 * @size: a guint32 pointer, or NULL.
2096 * This is used to obtain the public key in the @image.
2098 * If the image has a public key, and @size is not NULL, the value
2099 * pointed to by size will have the size of the public key.
2101 * Returns: NULL if the image does not have a public key, or a pointer
2102 * to the public key.
2105 mono_image_get_public_key (MonoImage *image, guint32 *size)
2110 if (image->dynamic) {
2112 *size = ((MonoDynamicImage*)image)->public_key_len;
2113 return (char*)((MonoDynamicImage*)image)->public_key;
2115 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2117 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2120 pubkey = mono_metadata_blob_heap (image, tok);
2121 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2128 * mono_image_get_name:
2129 * @name: a MonoImage
2131 * Returns: the name of the assembly.
2134 mono_image_get_name (MonoImage *image)
2136 return image->assembly_name;
2140 * mono_image_get_filename:
2141 * @image: a MonoImage
2143 * Used to get the filename that hold the actual MonoImage
2145 * Returns: the filename.
2148 mono_image_get_filename (MonoImage *image)
2154 mono_image_get_guid (MonoImage *image)
2159 const MonoTableInfo*
2160 mono_image_get_table_info (MonoImage *image, int table_id)
2162 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2164 return &image->tables [table_id];
2168 mono_image_get_table_rows (MonoImage *image, int table_id)
2170 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2172 return image->tables [table_id].rows;
2176 mono_table_info_get_rows (const MonoTableInfo *table)
2182 * mono_image_get_assembly:
2183 * @image: the MonoImage.
2185 * Use this routine to get the assembly that owns this image.
2187 * Returns: the assembly that holds this image.
2190 mono_image_get_assembly (MonoImage *image)
2192 return image->assembly;
2196 * mono_image_is_dynamic:
2197 * @image: the MonoImage
2199 * Determines if the given image was created dynamically through the
2200 * System.Reflection.Emit API
2202 * Returns: TRUE if the image was created dynamically, FALSE if not.
2205 mono_image_is_dynamic (MonoImage *image)
2207 return image->dynamic;
2211 * mono_image_has_authenticode_entry:
2212 * @image: the MonoImage
2214 * Use this routine to determine if the image has a Authenticode
2215 * Certificate Table.
2217 * Returns: TRUE if the image contains an authenticode entry in the PE
2221 mono_image_has_authenticode_entry (MonoImage *image)
2223 MonoCLIImageInfo *iinfo = image->image_info;
2224 MonoDotNetHeader *header = &iinfo->cli_header;
2225 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
2226 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
2227 return ((de->rva != 0) && (de->size > 8));
2231 mono_image_alloc (MonoImage *image, guint size)
2235 #ifndef DISABLE_PERFCOUNTERS
2236 mono_perfcounters->loader_bytes += size;
2238 mono_image_lock (image);
2239 res = mono_mempool_alloc (image->mempool, size);
2240 mono_image_unlock (image);
2246 mono_image_alloc0 (MonoImage *image, guint size)
2250 #ifndef DISABLE_PERFCOUNTERS
2251 mono_perfcounters->loader_bytes += size;
2253 mono_image_lock (image);
2254 res = mono_mempool_alloc0 (image->mempool, size);
2255 mono_image_unlock (image);
2261 mono_image_strdup (MonoImage *image, const char *s)
2265 #ifndef DISABLE_PERFCOUNTERS
2266 mono_perfcounters->loader_bytes += strlen (s);
2268 mono_image_lock (image);
2269 res = mono_mempool_strdup (image->mempool, s);
2270 mono_image_unlock (image);
2276 g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
2280 new_list = mono_image_alloc (image, sizeof (GList));
2281 new_list->data = data;
2282 new_list->prev = list ? list->prev : NULL;
2283 new_list->next = list;
2286 new_list->prev->next = new_list;
2288 list->prev = new_list;
2294 g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
2298 new_list = mono_image_alloc (image, sizeof (GSList));
2299 new_list->data = data;
2300 new_list->next = NULL;
2302 return g_slist_concat (list, new_list);
2306 mono_image_lock (MonoImage *image)
2308 mono_locks_acquire (&image->lock, ImageDataLock);
2312 mono_image_unlock (MonoImage *image)
2314 mono_locks_release (&image->lock, ImageDataLock);
2319 * mono_image_property_lookup:
2321 * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
2323 * LOCKING: Takes the image lock
2326 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
2330 mono_image_lock (image);
2331 res = mono_property_hash_lookup (image->property_hash, subject, property);
2332 mono_image_unlock (image);
2338 * mono_image_property_insert:
2340 * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2342 * LOCKING: Takes the image lock
2345 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
2347 mono_image_lock (image);
2348 mono_property_hash_insert (image->property_hash, subject, property, value);
2349 mono_image_unlock (image);
2353 * mono_image_property_remove:
2355 * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
2357 * LOCKING: Takes the image lock
2360 mono_image_property_remove (MonoImage *image, gpointer subject)
2362 mono_image_lock (image);
2363 mono_property_hash_remove_object (image->property_hash, subject);
2364 mono_image_unlock (image);