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Revert some changes which don't have proper dependencies.
[mono-project.git] / mono / metadata / image.c
bloba171949fcf884abb2ed06327ab3e84a6c6b9dfe9
1 /**
2 * \file
3 * Routines for manipulating an image stored in an
4 * extended PE/COFF file.
5 *
6 * Authors:
7 * Miguel de Icaza (miguel@ximian.com)
8 * Paolo Molaro (lupus@ximian.com)
9 *
10 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
11 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
12 *
13 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
14 */
15 #include <config.h>
16 #include <stdio.h>
17 #include <glib.h>
18 #include <errno.h>
19 #include <time.h>
20 #include <string.h>
21 #include "image.h"
22 #include "cil-coff.h"
23 #include "mono-endian.h"
24 #include "tabledefs.h"
25 #include "tokentype.h"
26 #include "metadata-internals.h"
27 #include "profiler-private.h"
28 #include "loader.h"
29 #include "marshal.h"
30 #include "coree.h"
31 #include <mono/metadata/exception-internals.h>
32 #include <mono/utils/checked-build.h>
33 #include <mono/utils/mono-logger-internals.h>
34 #include <mono/utils/mono-errno.h>
35 #include <mono/utils/mono-path.h>
36 #include <mono/utils/mono-mmap.h>
37 #include <mono/utils/mono-io-portability.h>
38 #include <mono/utils/atomic.h>
39 #include <mono/utils/mono-proclib.h>
40 #include <mono/metadata/class-internals.h>
41 #include <mono/metadata/assembly.h>
42 #include <mono/metadata/object-internals.h>
43 #include <mono/metadata/security-core-clr.h>
44 #include <mono/metadata/verify-internals.h>
45 #include <mono/metadata/verify.h>
46 #include <mono/metadata/image-internals.h>
47 #include <mono/metadata/w32process-internals.h>
48 #include <sys/types.h>
49 #include <sys/stat.h>
50 #ifdef HAVE_UNISTD_H
51 #include <unistd.h>
52 #endif
53 #include <mono/metadata/w32error.h>
54
55 #define INVALID_ADDRESS 0xffffffff
56
57 // Amount initially reserved in each image's mempool.
58 // FIXME: This number is arbitrary, a more practical number should be found
59 #define INITIAL_IMAGE_SIZE 512
60
61 /*
62 * The "loaded images" hashes keep track of the various assemblies and netmodules loaded
63 * There are four, for all combinations of [look up by path or assembly name?]
64 * and [normal or reflection-only load?, as in Assembly.ReflectionOnlyLoad]
65 */
66 enum {
67 IMAGES_HASH_PATH = 0,
68 IMAGES_HASH_PATH_REFONLY = 1,
69 IMAGES_HASH_NAME = 2,
70 IMAGES_HASH_NAME_REFONLY = 3,
71 IMAGES_HASH_COUNT = 4
72 };
73 static GHashTable *loaded_images_hashes [4] = {NULL, NULL, NULL, NULL};
74
75 static GHashTable *
76 get_loaded_images_hash (gboolean refonly)
77 {
78 int idx = refonly ? IMAGES_HASH_PATH_REFONLY : IMAGES_HASH_PATH;
79 return loaded_images_hashes [idx];
80 }
81
82 static GHashTable *
83 get_loaded_images_by_name_hash (gboolean refonly)
84 {
85 int idx = refonly ? IMAGES_HASH_NAME_REFONLY : IMAGES_HASH_NAME;
86 return loaded_images_hashes [idx];
87 }
88
89 // Change the assembly set in `image` to the assembly set in `assemblyImage`. Halt if overwriting is attempted.
90 // Can be used on modules loaded through either the "file" or "module" mechanism
91 static gboolean
92 assign_assembly_parent_for_netmodule (MonoImage *image, MonoImage *assemblyImage, MonoError *error)
93 {
94 // Assembly to assign
95 MonoAssembly *assembly = assemblyImage->assembly;
96
97 while (1) {
98 // Assembly currently assigned
99 MonoAssembly *assemblyOld = image->assembly;
100 if (assemblyOld) {
101 if (assemblyOld == assembly)
102 return TRUE;
103 mono_error_set_bad_image (error, assemblyImage, "Attempted to load module %s which has already been loaded by assembly %s. This is not supported in Mono.", image->name, assemblyOld->image->name);
104 return FALSE;
105 }
106 gpointer result = mono_atomic_xchg_ptr((gpointer *)&image->assembly, assembly);
107 if (result == assembly)
108 return TRUE;
109 }
110 }
111
112 static gboolean debug_assembly_unload = FALSE;
113
114 #define mono_images_lock() if (mutex_inited) mono_os_mutex_lock (&images_mutex)
115 #define mono_images_unlock() if (mutex_inited) mono_os_mutex_unlock (&images_mutex)
116 #define mono_images_storage_lock() do { if (mutex_inited) mono_os_mutex_lock (&images_storage_mutex); } while (0)
117 #define mono_images_storage_unlock() do { if (mutex_inited) mono_os_mutex_unlock (&images_storage_mutex); } while (0)
118 static gboolean mutex_inited;
119 static mono_mutex_t images_mutex;
120 static mono_mutex_t images_storage_mutex;
121
122 /* Maps string keys to MonoImageStorage values.
123 *
124 * The MonoImageStorage in the hash owns the key.
125 */
126 static GHashTable *images_storage_hash;
127
128 static void install_pe_loader (void);
129
130 typedef struct ImageUnloadHook ImageUnloadHook;
131 struct ImageUnloadHook {
132 MonoImageUnloadFunc func;
133 gpointer user_data;
134 };
135
136 static GSList *image_unload_hooks;
137
138 void
139 mono_install_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data)
140 {
141 ImageUnloadHook *hook;
142
143 g_return_if_fail (func != NULL);
144
145 hook = g_new0 (ImageUnloadHook, 1);
146 hook->func = func;
147 hook->user_data = user_data;
148 image_unload_hooks = g_slist_prepend (image_unload_hooks, hook);
149 }
150
151 void
152 mono_remove_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data)
153 {
154 GSList *l;
155 ImageUnloadHook *hook;
156
157 for (l = image_unload_hooks; l; l = l->next) {
158 hook = (ImageUnloadHook *)l->data;
159
160 if (hook->func == func && hook->user_data == user_data) {
161 g_free (hook);
162 image_unload_hooks = g_slist_delete_link (image_unload_hooks, l);
163 break;
164 }
165 }
166 }
167
168 static void
169 mono_image_invoke_unload_hook (MonoImage *image)
170 {
171 GSList *l;
172 ImageUnloadHook *hook;
173
174 for (l = image_unload_hooks; l; l = l->next) {
175 hook = (ImageUnloadHook *)l->data;
176
177 hook->func (image, hook->user_data);
178 }
179 }
180
181 static GSList *image_loaders;
182
183 void
184 mono_install_image_loader (const MonoImageLoader *loader)
185 {
186 image_loaders = g_slist_prepend (image_loaders, (MonoImageLoader*)loader);
187 }
188
189 /* returns offset relative to image->raw_data */
190 guint32
191 mono_cli_rva_image_map (MonoImage *image, guint32 addr)
192 {
193 MonoCLIImageInfo *iinfo = image->image_info;
194 const int top = iinfo->cli_section_count;
195 MonoSectionTable *tables = iinfo->cli_section_tables;
196 int i;
197
198 if (image->metadata_only)
199 return addr;
200
201 for (i = 0; i < top; i++){
202 if ((addr >= tables->st_virtual_address) &&
203 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
204 #ifdef HOST_WIN32
205 if (m_image_is_module_handle (image))
206 return addr;
207 #endif
208 return addr - tables->st_virtual_address + tables->st_raw_data_ptr;
209 }
210 tables++;
211 }
212 return INVALID_ADDRESS;
213 }
214
215 /**
216 * mono_image_rva_map:
217 * \param image a \c MonoImage
218 * \param addr relative virtual address (RVA)
219 *
220 * This is a low-level routine used by the runtime to map relative
221 * virtual address (RVA) into their location in memory.
222 *
223 * \returns the address in memory for the given RVA, or NULL if the
224 * RVA is not valid for this image.
225 */
226 char *
227 mono_image_rva_map (MonoImage *image, guint32 addr)
228 {
229 MonoCLIImageInfo *iinfo = image->image_info;
230 const int top = iinfo->cli_section_count;
231 MonoSectionTable *tables = iinfo->cli_section_tables;
232 int i;
233
234 #ifdef HOST_WIN32
235 if (m_image_is_module_handle (image)) {
236 if (addr && addr < image->raw_data_len)
237 return image->raw_data + addr;
238 else
239 return NULL;
240 }
241 #endif
242
243 for (i = 0; i < top; i++){
244 if ((addr >= tables->st_virtual_address) &&
245 (addr < tables->st_virtual_address + tables->st_raw_data_size)){
246 if (!iinfo->cli_sections [i]) {
247 if (!mono_image_ensure_section_idx (image, i))
248 return NULL;
249 }
250 return (char*)iinfo->cli_sections [i] +
251 (addr - tables->st_virtual_address);
252 }
253 tables++;
254 }
255 return NULL;
256 }
257
258 /**
259 * mono_images_init:
260 *
261 * Initialize the global variables used by this module.
262 */
263 void
264 mono_images_init (void)
265 {
266 mono_os_mutex_init (&images_storage_mutex);
267 mono_os_mutex_init_recursive (&images_mutex);
268
269 images_storage_hash = g_hash_table_new (g_str_hash, g_str_equal);
270
271 int hash_idx;
272 for(hash_idx = 0; hash_idx < IMAGES_HASH_COUNT; hash_idx++)
273 loaded_images_hashes [hash_idx] = g_hash_table_new (g_str_hash, g_str_equal);
274
275 debug_assembly_unload = g_hasenv ("MONO_DEBUG_ASSEMBLY_UNLOAD");
276
277 install_pe_loader ();
278
279 mutex_inited = TRUE;
280 }
281
282 /**
283 * mono_images_cleanup:
284 *
285 * Free all resources used by this module.
286 */
287 void
288 mono_images_cleanup (void)
289 {
290 GHashTableIter iter;
291 MonoImage *image;
292
293 mono_os_mutex_destroy (&images_mutex);
294
295 // If an assembly image is still loaded at shutdown, this could indicate managed code is still running.
296 // Reflection-only images being still loaded doesn't indicate anything as harmful, so we don't check for it.
297 g_hash_table_iter_init (&iter, get_loaded_images_hash (FALSE));
298 while (g_hash_table_iter_next (&iter, NULL, (void**)&image))
299 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly image '%s' still loaded at shutdown.", image->name);
300
301 int hash_idx;
302 for(hash_idx = 0; hash_idx < IMAGES_HASH_COUNT; hash_idx++)
303 g_hash_table_destroy (loaded_images_hashes [hash_idx]);
304
305 g_hash_table_destroy (images_storage_hash);
306
307 mono_os_mutex_destroy (&images_storage_mutex);
308
309 mutex_inited = FALSE;
310 }
311
312 /**
313 * mono_image_ensure_section_idx:
314 * \param image The image we are operating on
315 * \param section section number that we will load/map into memory
316 *
317 * This routine makes sure that we have an in-memory copy of
318 * an image section (<code>.text</code>, <code>.rsrc</code>, <code>.data</code>).
319 *
320 * \returns TRUE on success
321 */
322 int
323 mono_image_ensure_section_idx (MonoImage *image, int section)
324 {
325 MonoCLIImageInfo *iinfo = image->image_info;
326 MonoSectionTable *sect;
327
328 g_return_val_if_fail (section < iinfo->cli_section_count, FALSE);
329
330 if (iinfo->cli_sections [section] != NULL)
331 return TRUE;
332
333 sect = &iinfo->cli_section_tables [section];
334
335 if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
336 return FALSE;
337 #ifdef HOST_WIN32
338 if (m_image_is_module_handle (image))
339 iinfo->cli_sections [section] = image->raw_data + sect->st_virtual_address;
340 else
341 #endif
342 /* FIXME: we ignore the writable flag since we don't patch the binary */
343 iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
344 return TRUE;
345 }
346
347 /**
348 * mono_image_ensure_section:
349 * \param image The image we are operating on
350 * \param section section name that we will load/map into memory
351 *
352 * This routine makes sure that we have an in-memory copy of
353 * an image section (.text, .rsrc, .data).
354 *
355 * \returns TRUE on success
356 */
357 int
358 mono_image_ensure_section (MonoImage *image, const char *section)
359 {
360 MonoCLIImageInfo *ii = image->image_info;
361 int i;
362
363 for (i = 0; i < ii->cli_section_count; i++){
364 if (strncmp (ii->cli_section_tables [i].st_name, section, 8) != 0)
365 continue;
366
367 return mono_image_ensure_section_idx (image, i);
368 }
369 return FALSE;
370 }
371
372 static int
373 load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
374 {
375 const int top = iinfo->cli_header.coff.coff_sections;
376 int i;
377
378 iinfo->cli_section_count = top;
379 iinfo->cli_section_tables = g_new0 (MonoSectionTable, top);
380 iinfo->cli_sections = g_new0 (void *, top);
381
382 for (i = 0; i < top; i++){
383 MonoSectionTable *t = &iinfo->cli_section_tables [i];
384
385 if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
386 return FALSE;
387 memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
388 offset += sizeof (MonoSectionTable);
389
390 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
391 t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
392 t->st_virtual_address = GUINT32_FROM_LE (t->st_virtual_address);
393 t->st_raw_data_size = GUINT32_FROM_LE (t->st_raw_data_size);
394 t->st_raw_data_ptr = GUINT32_FROM_LE (t->st_raw_data_ptr);
395 t->st_reloc_ptr = GUINT32_FROM_LE (t->st_reloc_ptr);
396 t->st_lineno_ptr = GUINT32_FROM_LE (t->st_lineno_ptr);
397 t->st_reloc_count = GUINT16_FROM_LE (t->st_reloc_count);
398 t->st_line_count = GUINT16_FROM_LE (t->st_line_count);
399 t->st_flags = GUINT32_FROM_LE (t->st_flags);
400 #endif
401 /* consistency checks here */
402 }
403
404 return TRUE;
405 }
406
407 gboolean
408 mono_image_load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
409 {
410 guint32 offset;
411
412 offset = mono_cli_rva_image_map (image, iinfo->cli_header.datadir.pe_cli_header.rva);
413 if (offset == INVALID_ADDRESS)
414 return FALSE;
415
416 if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
417 return FALSE;
418 memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
419
420 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
421 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
422 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
423 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
424 SWAP32 (iinfo->cli_cli_header.ch_size);
425 SWAP32 (iinfo->cli_cli_header.ch_flags);
426 SWAP32 (iinfo->cli_cli_header.ch_entry_point);
427 SWAP16 (iinfo->cli_cli_header.ch_runtime_major);
428 SWAP16 (iinfo->cli_cli_header.ch_runtime_minor);
429 SWAPPDE (iinfo->cli_cli_header.ch_metadata);
430 SWAPPDE (iinfo->cli_cli_header.ch_resources);
431 SWAPPDE (iinfo->cli_cli_header.ch_strong_name);
432 SWAPPDE (iinfo->cli_cli_header.ch_code_manager_table);
433 SWAPPDE (iinfo->cli_cli_header.ch_vtable_fixups);
434 SWAPPDE (iinfo->cli_cli_header.ch_export_address_table_jumps);
435 SWAPPDE (iinfo->cli_cli_header.ch_eeinfo_table);
436 SWAPPDE (iinfo->cli_cli_header.ch_helper_table);
437 SWAPPDE (iinfo->cli_cli_header.ch_dynamic_info);
438 SWAPPDE (iinfo->cli_cli_header.ch_delay_load_info);
439 SWAPPDE (iinfo->cli_cli_header.ch_module_image);
440 SWAPPDE (iinfo->cli_cli_header.ch_external_fixups);
441 SWAPPDE (iinfo->cli_cli_header.ch_ridmap);
442 SWAPPDE (iinfo->cli_cli_header.ch_debug_map);
443 SWAPPDE (iinfo->cli_cli_header.ch_ip_map);
444 #undef SWAP32
445 #undef SWAP16
446 #undef SWAPPDE
447 #endif
448 /* Catch new uses of the fields that are supposed to be zero */
449
450 if ((iinfo->cli_cli_header.ch_eeinfo_table.rva != 0) ||
451 (iinfo->cli_cli_header.ch_helper_table.rva != 0) ||
452 (iinfo->cli_cli_header.ch_dynamic_info.rva != 0) ||
453 (iinfo->cli_cli_header.ch_delay_load_info.rva != 0) ||
454 (iinfo->cli_cli_header.ch_module_image.rva != 0) ||
455 (iinfo->cli_cli_header.ch_external_fixups.rva != 0) ||
456 (iinfo->cli_cli_header.ch_ridmap.rva != 0) ||
457 (iinfo->cli_cli_header.ch_debug_map.rva != 0) ||
458 (iinfo->cli_cli_header.ch_ip_map.rva != 0)){
459
460 /*
461 * No need to scare people who are testing this, I am just
462 * labelling this as a LAMESPEC
463 */
464 /* g_warning ("Some fields in the CLI header which should have been zero are not zero"); */
465
466 }
467
468 return TRUE;
469 }
470
471 static gboolean
472 load_metadata_ptrs (MonoImage *image, MonoCLIImageInfo *iinfo)
473 {
474 guint32 offset, size;
475 guint16 streams;
476 int i;
477 guint32 pad;
478 char *ptr;
479
480 offset = mono_cli_rva_image_map (image, iinfo->cli_cli_header.ch_metadata.rva);
481 if (offset == INVALID_ADDRESS)
482 return FALSE;
483
484 size = iinfo->cli_cli_header.ch_metadata.size;
485
486 if (offset + size > image->raw_data_len)
487 return FALSE;
488 image->raw_metadata = image->raw_data + offset;
489
490 /* 24.2.1: Metadata root starts here */
491 ptr = image->raw_metadata;
492
493 if (strncmp (ptr, "BSJB", 4) == 0){
494 guint32 version_string_len;
495
496 ptr += 4;
497 image->md_version_major = read16 (ptr);
498 ptr += 2;
499 image->md_version_minor = read16 (ptr);
500 ptr += 6;
501
502 version_string_len = read32 (ptr);
503 ptr += 4;
504 image->version = g_strndup (ptr, version_string_len);
505 ptr += version_string_len;
506 pad = ptr - image->raw_metadata;
507 if (pad % 4)
508 ptr += 4 - (pad % 4);
509 } else
510 return FALSE;
511
512 /* skip over flags */
513 ptr += 2;
514
515 streams = read16 (ptr);
516 ptr += 2;
517
518 for (i = 0; i < streams; i++){
519 if (strncmp (ptr + 8, "#~", 3) == 0){
520 image->heap_tables.data = image->raw_metadata + read32 (ptr);
521 image->heap_tables.size = read32 (ptr + 4);
522 ptr += 8 + 3;
523 } else if (strncmp (ptr + 8, "#Strings", 9) == 0){
524 image->heap_strings.data = image->raw_metadata + read32 (ptr);
525 image->heap_strings.size = read32 (ptr + 4);
526 ptr += 8 + 9;
527 } else if (strncmp (ptr + 8, "#US", 4) == 0){
528 image->heap_us.data = image->raw_metadata + read32 (ptr);
529 image->heap_us.size = read32 (ptr + 4);
530 ptr += 8 + 4;
531 } else if (strncmp (ptr + 8, "#Blob", 6) == 0){
532 image->heap_blob.data = image->raw_metadata + read32 (ptr);
533 image->heap_blob.size = read32 (ptr + 4);
534 ptr += 8 + 6;
535 } else if (strncmp (ptr + 8, "#GUID", 6) == 0){
536 image->heap_guid.data = image->raw_metadata + read32 (ptr);
537 image->heap_guid.size = read32 (ptr + 4);
538 ptr += 8 + 6;
539 } else if (strncmp (ptr + 8, "#-", 3) == 0) {
540 image->heap_tables.data = image->raw_metadata + read32 (ptr);
541 image->heap_tables.size = read32 (ptr + 4);
542 ptr += 8 + 3;
543 image->uncompressed_metadata = TRUE;
544 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).", image->name);
545 } else if (strncmp (ptr + 8, "#Pdb", 5) == 0) {
546 image->heap_pdb.data = image->raw_metadata + read32 (ptr);
547 image->heap_pdb.size = read32 (ptr + 4);
548 ptr += 8 + 5;
549 } else {
550 g_message ("Unknown heap type: %s\n", ptr + 8);
551 ptr += 8 + strlen (ptr + 8) + 1;
552 }
553 pad = ptr - image->raw_metadata;
554 if (pad % 4)
555 ptr += 4 - (pad % 4);
556 }
557
558 i = ((MonoImageLoader*)image->loader)->load_tables (image);
559
560 if (!image->metadata_only) {
561 g_assert (image->heap_guid.data);
562 g_assert (image->heap_guid.size >= 16);
563
564 image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
565 } else {
566 /* PPDB files have no guid */
567 guint8 empty_guid [16];
568
569 memset (empty_guid, 0, sizeof (empty_guid));
570
571 image->guid = mono_guid_to_string (empty_guid);
572 }
573
574 return i;
575 }
576
577 /*
578 * Load representation of logical metadata tables, from the "#~" stream
579 */
580 static gboolean
581 load_tables (MonoImage *image)
582 {
583 const char *heap_tables = image->heap_tables.data;
584 const guint32 *rows;
585 guint64 valid_mask;
586 int valid = 0, table;
587 int heap_sizes;
588
589 heap_sizes = heap_tables [6];
590 image->idx_string_wide = ((heap_sizes & 0x01) == 1);
591 image->idx_guid_wide = ((heap_sizes & 0x02) == 2);
592 image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
593
594 valid_mask = read64 (heap_tables + 8);
595 rows = (const guint32 *) (heap_tables + 24);
596
597 for (table = 0; table < 64; table++){
598 if ((valid_mask & ((guint64) 1 << table)) == 0){
599 if (table > MONO_TABLE_LAST)
600 continue;
601 image->tables [table].rows = 0;
602 continue;
603 }
604 if (table > MONO_TABLE_LAST) {
605 g_warning("bits in valid must be zero above 0x37 (II - 23.1.6)");
606 } else {
607 image->tables [table].rows = read32 (rows);
608 }
609 rows++;
610 valid++;
611 }
612
613 image->tables_base = (heap_tables + 24) + (4 * valid);
614
615 /* They must be the same */
616 g_assert ((const void *) image->tables_base == (const void *) rows);
617
618 if (image->heap_pdb.size) {
619 /*
620 * Obtain token sizes from the pdb stream.
621 */
622 /* 24 = guid + entry point */
623 int pos = 24;
624 image->referenced_tables = read64 (image->heap_pdb.data + pos);
625 pos += 8;
626 image->referenced_table_rows = g_new0 (int, 64);
627 for (int i = 0; i < 64; ++i) {
628 if (image->referenced_tables & ((guint64)1 << i)) {
629 image->referenced_table_rows [i] = read32 (image->heap_pdb.data + pos);
630 pos += 4;
631 }
632 }
633 }
634
635 mono_metadata_compute_table_bases (image);
636 return TRUE;
637 }
638
639 gboolean
640 mono_image_load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo)
641 {
642 if (!load_metadata_ptrs (image, iinfo))
643 return FALSE;
644
645 return load_tables (image);
646 }
647
648 void
649 mono_image_check_for_module_cctor (MonoImage *image)
650 {
651 MonoTableInfo *t, *mt;
652 t = &image->tables [MONO_TABLE_TYPEDEF];
653 mt = &image->tables [MONO_TABLE_METHOD];
654 if (image_is_dynamic (image)) {
655 /* FIXME: */
656 image->checked_module_cctor = TRUE;
657 return;
658 }
659 if (t->rows >= 1) {
660 guint32 nameidx = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_NAME);
661 const char *name = mono_metadata_string_heap (image, nameidx);
662 if (strcmp (name, "<Module>") == 0) {
663 guint32 first_method = mono_metadata_decode_row_col (t, 0, MONO_TYPEDEF_METHOD_LIST) - 1;
664 guint32 last_method;
665 if (t->rows > 1)
666 last_method = mono_metadata_decode_row_col (t, 1, MONO_TYPEDEF_METHOD_LIST) - 1;
667 else
668 last_method = mt->rows;
669 for (; first_method < last_method; first_method++) {
670 nameidx = mono_metadata_decode_row_col (mt, first_method, MONO_METHOD_NAME);
671 name = mono_metadata_string_heap (image, nameidx);
672 if (strcmp (name, ".cctor") == 0) {
673 image->has_module_cctor = TRUE;
674 image->checked_module_cctor = TRUE;
675 return;
676 }
677 }
678 }
679 }
680 image->has_module_cctor = FALSE;
681 image->checked_module_cctor = TRUE;
682 }
683
684 static void
685 load_modules (MonoImage *image)
686 {
687 MonoTableInfo *t;
688
689 if (image->modules)
690 return;
691
692 t = &image->tables [MONO_TABLE_MODULEREF];
693 image->modules = g_new0 (MonoImage *, t->rows);
694 image->modules_loaded = g_new0 (gboolean, t->rows);
695 image->module_count = t->rows;
696 }
697
698 /**
699 * mono_image_load_module_checked:
700 *
701 * Load the module with the one-based index IDX from IMAGE and return it. Return NULL if
702 * it cannot be loaded. NULL without MonoError being set will be interpreted as "not found".
703 */
704 MonoImage*
705 mono_image_load_module_checked (MonoImage *image, int idx, MonoError *error)
706 {
707 MonoTableInfo *t;
708 MonoTableInfo *file_table;
709 int i;
710 char *base_dir;
711 gboolean refonly = image->ref_only;
712 GList *list_iter, *valid_modules = NULL;
713 MonoImageOpenStatus status;
714
715 error_init (error);
716
717 if ((image->module_count == 0) || (idx > image->module_count || idx <= 0))
718 return NULL;
719 if (image->modules_loaded [idx - 1])
720 return image->modules [idx - 1];
721
722 file_table = &image->tables [MONO_TABLE_FILE];
723 for (i = 0; i < file_table->rows; i++) {
724 guint32 cols [MONO_FILE_SIZE];
725 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
726 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
727 continue;
728 valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
729 }
730
731 t = &image->tables [MONO_TABLE_MODULEREF];
732 base_dir = g_path_get_dirname (image->name);
733
734 {
735 char *module_ref;
736 const char *name;
737 guint32 cols [MONO_MODULEREF_SIZE];
738 /* if there is no file table, we try to load the module... */
739 int valid = file_table->rows == 0;
740
741 mono_metadata_decode_row (t, idx - 1, cols, MONO_MODULEREF_SIZE);
742 name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
743 for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
744 /* be safe with string dups, but we could just compare string indexes */
745 if (strcmp ((const char*)list_iter->data, name) == 0) {
746 valid = TRUE;
747 break;
748 }
749 }
750 if (valid) {
751 module_ref = g_build_filename (base_dir, name, NULL);
752 MonoImage *moduleImage = mono_image_open_full (module_ref, &status, refonly);
753 if (moduleImage) {
754 if (!assign_assembly_parent_for_netmodule (moduleImage, image, error)) {
755 mono_image_close (moduleImage);
756 g_free (module_ref);
757 g_free (base_dir);
758 g_list_free (valid_modules);
759 return NULL;
760 }
761
762 image->modules [idx - 1] = moduleImage;
763
764 #ifdef HOST_WIN32
765 if (m_image_is_module_handle (image->modules [idx - 1]))
766 mono_image_fixup_vtable (image->modules [idx - 1]);
767 #endif
768 /* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
769 }
770 g_free (module_ref);
771 }
772 }
773
774 image->modules_loaded [idx - 1] = TRUE;
775
776 g_free (base_dir);
777 g_list_free (valid_modules);
778
779 return image->modules [idx - 1];
780 }
781
782 /**
783 * mono_image_load_module:
784 */
785 MonoImage*
786 mono_image_load_module (MonoImage *image, int idx)
787 {
788 ERROR_DECL (error);
789 MonoImage *result = mono_image_load_module_checked (image, idx, error);
790 mono_error_assert_ok (error);
791 return result;
792 }
793
794 static gpointer
795 class_key_extract (gpointer value)
796 {
797 MonoClass *klass = (MonoClass *)value;
798
799 return GUINT_TO_POINTER (m_class_get_type_token (klass));
800 }
801
802 static gpointer*
803 class_next_value (gpointer value)
804 {
805 MonoClassDef *klass = (MonoClassDef *)value;
806
807 return (gpointer*)m_classdef_get_next_class_cache (klass);
808 }
809
810 /**
811 * mono_image_init:
812 */
813 void
814 mono_image_init (MonoImage *image)
815 {
816 mono_os_mutex_init_recursive (&image->lock);
817 mono_os_mutex_init_recursive (&image->szarray_cache_lock);
818
819 image->mempool = mono_mempool_new_size (INITIAL_IMAGE_SIZE);
820 mono_internal_hash_table_init (&image->class_cache,
821 g_direct_hash,
822 class_key_extract,
823 class_next_value);
824 image->field_cache = mono_conc_hashtable_new (NULL, NULL);
825
826 image->typespec_cache = mono_conc_hashtable_new (NULL, NULL);
827 image->memberref_signatures = g_hash_table_new (NULL, NULL);
828 image->method_signatures = g_hash_table_new (NULL, NULL);
829
830 image->property_hash = mono_property_hash_new ();
831 }
832
833 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
834 #define SWAP64(x) (x) = GUINT64_FROM_LE ((x))
835 #define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
836 #define SWAP16(x) (x) = GUINT16_FROM_LE ((x))
837 #define SWAPPDE(x) do { (x).rva = GUINT32_FROM_LE ((x).rva); (x).size = GUINT32_FROM_LE ((x).size);} while (0)
838 #else
839 #define SWAP64(x)
840 #define SWAP32(x)
841 #define SWAP16(x)
842 #define SWAPPDE(x)
843 #endif
844
845 /*
846 * Returns < 0 to indicate an error.
847 */
848 static int
849 do_load_header (MonoImage *image, MonoDotNetHeader *header, int offset)
850 {
851 MonoDotNetHeader64 header64;
852
853 #ifdef HOST_WIN32
854 if (!m_image_is_module_handle (image))
855 #endif
856 if (offset + sizeof (MonoDotNetHeader32) > image->raw_data_len)
857 return -1;
858
859 memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
860
861 if (header->pesig [0] != 'P' || header->pesig [1] != 'E' || header->pesig [2] || header->pesig [3])
862 return -1;
863
864 /* endian swap the fields common between PE and PE+ */
865 SWAP32 (header->coff.coff_time);
866 SWAP32 (header->coff.coff_symptr);
867 SWAP32 (header->coff.coff_symcount);
868 SWAP16 (header->coff.coff_machine);
869 SWAP16 (header->coff.coff_sections);
870 SWAP16 (header->coff.coff_opt_header_size);
871 SWAP16 (header->coff.coff_attributes);
872 /* MonoPEHeader */
873 SWAP32 (header->pe.pe_code_size);
874 SWAP32 (header->pe.pe_uninit_data_size);
875 SWAP32 (header->pe.pe_rva_entry_point);
876 SWAP32 (header->pe.pe_rva_code_base);
877 SWAP32 (header->pe.pe_rva_data_base);
878 SWAP16 (header->pe.pe_magic);
879
880 /* now we are ready for the basic tests */
881
882 if (header->pe.pe_magic == 0x10B) {
883 offset += sizeof (MonoDotNetHeader);
884 SWAP32 (header->pe.pe_data_size);
885 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader) - sizeof (MonoCOFFHeader) - 4))
886 return -1;
887
888 SWAP32 (header->nt.pe_image_base); /* must be 0x400000 */
889 SWAP32 (header->nt.pe_stack_reserve);
890 SWAP32 (header->nt.pe_stack_commit);
891 SWAP32 (header->nt.pe_heap_reserve);
892 SWAP32 (header->nt.pe_heap_commit);
893 } else if (header->pe.pe_magic == 0x20B) {
894 /* PE32+ file format */
895 if (header->coff.coff_opt_header_size != (sizeof (MonoDotNetHeader64) - sizeof (MonoCOFFHeader) - 4))
896 return -1;
897 memcpy (&header64, image->raw_data + offset, sizeof (MonoDotNetHeader64));
898 offset += sizeof (MonoDotNetHeader64);
899 /* copy the fields already swapped. the last field, pe_data_size, is missing */
900 memcpy (&header64, header, sizeof (MonoDotNetHeader) - 4);
901 /* FIXME: we lose bits here, but we don't use this stuff internally, so we don't care much.
902 * will be fixed when we change MonoDotNetHeader to not match the 32 bit variant
903 */
904 SWAP64 (header64.nt.pe_image_base);
905 header->nt.pe_image_base = header64.nt.pe_image_base;
906 SWAP64 (header64.nt.pe_stack_reserve);
907 header->nt.pe_stack_reserve = header64.nt.pe_stack_reserve;
908 SWAP64 (header64.nt.pe_stack_commit);
909 header->nt.pe_stack_commit = header64.nt.pe_stack_commit;
910 SWAP64 (header64.nt.pe_heap_reserve);
911 header->nt.pe_heap_reserve = header64.nt.pe_heap_reserve;
912 SWAP64 (header64.nt.pe_heap_commit);
913 header->nt.pe_heap_commit = header64.nt.pe_heap_commit;
914
915 header->nt.pe_section_align = header64.nt.pe_section_align;
916 header->nt.pe_file_alignment = header64.nt.pe_file_alignment;
917 header->nt.pe_os_major = header64.nt.pe_os_major;
918 header->nt.pe_os_minor = header64.nt.pe_os_minor;
919 header->nt.pe_user_major = header64.nt.pe_user_major;
920 header->nt.pe_user_minor = header64.nt.pe_user_minor;
921 header->nt.pe_subsys_major = header64.nt.pe_subsys_major;
922 header->nt.pe_subsys_minor = header64.nt.pe_subsys_minor;
923 header->nt.pe_reserved_1 = header64.nt.pe_reserved_1;
924 header->nt.pe_image_size = header64.nt.pe_image_size;
925 header->nt.pe_header_size = header64.nt.pe_header_size;
926 header->nt.pe_checksum = header64.nt.pe_checksum;
927 header->nt.pe_subsys_required = header64.nt.pe_subsys_required;
928 header->nt.pe_dll_flags = header64.nt.pe_dll_flags;
929 header->nt.pe_loader_flags = header64.nt.pe_loader_flags;
930 header->nt.pe_data_dir_count = header64.nt.pe_data_dir_count;
931
932 /* copy the datadir */
933 memcpy (&header->datadir, &header64.datadir, sizeof (MonoPEDatadir));
934 } else {
935 return -1;
936 }
937
938 /* MonoPEHeaderNT: not used yet */
939 SWAP32 (header->nt.pe_section_align); /* must be 8192 */
940 SWAP32 (header->nt.pe_file_alignment); /* must be 512 or 4096 */
941 SWAP16 (header->nt.pe_os_major); /* must be 4 */
942 SWAP16 (header->nt.pe_os_minor); /* must be 0 */
943 SWAP16 (header->nt.pe_user_major);
944 SWAP16 (header->nt.pe_user_minor);
945 SWAP16 (header->nt.pe_subsys_major);
946 SWAP16 (header->nt.pe_subsys_minor);
947 SWAP32 (header->nt.pe_reserved_1);
948 SWAP32 (header->nt.pe_image_size);
949 SWAP32 (header->nt.pe_header_size);
950 SWAP32 (header->nt.pe_checksum);
951 SWAP16 (header->nt.pe_subsys_required);
952 SWAP16 (header->nt.pe_dll_flags);
953 SWAP32 (header->nt.pe_loader_flags);
954 SWAP32 (header->nt.pe_data_dir_count);
955
956 /* MonoDotNetHeader: mostly unused */
957 SWAPPDE (header->datadir.pe_export_table);
958 SWAPPDE (header->datadir.pe_import_table);
959 SWAPPDE (header->datadir.pe_resource_table);
960 SWAPPDE (header->datadir.pe_exception_table);
961 SWAPPDE (header->datadir.pe_certificate_table);
962 SWAPPDE (header->datadir.pe_reloc_table);
963 SWAPPDE (header->datadir.pe_debug);
964 SWAPPDE (header->datadir.pe_copyright);
965 SWAPPDE (header->datadir.pe_global_ptr);
966 SWAPPDE (header->datadir.pe_tls_table);
967 SWAPPDE (header->datadir.pe_load_config_table);
968 SWAPPDE (header->datadir.pe_bound_import);
969 SWAPPDE (header->datadir.pe_iat);
970 SWAPPDE (header->datadir.pe_delay_import_desc);
971 SWAPPDE (header->datadir.pe_cli_header);
972 SWAPPDE (header->datadir.pe_reserved);
973
974 #ifdef HOST_WIN32
975 if (m_image_is_module_handle (image))
976 image->storage->raw_data_len = header->nt.pe_image_size;
977 #endif
978
979 return offset;
980 }
981
982 gboolean
983 mono_image_load_pe_data (MonoImage *image)
984 {
985 return ((MonoImageLoader*)image->loader)->load_pe_data (image);
986 }
987
988 static gboolean
989 pe_image_load_pe_data (MonoImage *image)
990 {
991 MonoCLIImageInfo *iinfo;
992 MonoDotNetHeader *header;
993 MonoMSDOSHeader msdos;
994 gint32 offset = 0;
995
996 iinfo = image->image_info;
997 header = &iinfo->cli_header;
998
999 #ifdef HOST_WIN32
1000 if (!m_image_is_module_handle (image))
1001 #endif
1002 if (offset + sizeof (msdos) > image->raw_data_len)
1003 goto invalid_image;
1004 memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
1005
1006 if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
1007 goto invalid_image;
1008
1009 msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
1010
1011 offset = msdos.pe_offset;
1012
1013 offset = do_load_header (image, header, offset);
1014 if (offset < 0)
1015 goto invalid_image;
1016
1017 /*
1018 * this tests for a x86 machine type, but itanium, amd64 and others could be used, too.
1019 * we skip this test.
1020 if (header->coff.coff_machine != 0x14c)
1021 goto invalid_image;
1022 */
1023
1024 #if 0
1025 /*
1026 * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
1027 * which produces binaries with 7.0. From Sergey:
1028 *
1029 * The reason is that MSVC7 uses traditional compile/link
1030 * sequence for CIL executables, and VS.NET (and Framework
1031 * SDK) includes linker version 7, that puts 7.0 in this
1032 * field. That's why it's currently not possible to load VC
1033 * binaries with Mono. This field is pretty much meaningless
1034 * anyway (what linker?).
1035 */
1036 if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
1037 goto invalid_image;
1038 #endif
1039
1040 /*
1041 * FIXME: byte swap all addresses here for header.
1042 */
1043
1044 if (!load_section_tables (image, iinfo, offset))
1045 goto invalid_image;
1046
1047 return TRUE;
1048
1049 invalid_image:
1050 return FALSE;
1051 }
1052
1053 gboolean
1054 mono_image_load_cli_data (MonoImage *image)
1055 {
1056 return ((MonoImageLoader*)image->loader)->load_cli_data (image);
1057 }
1058
1059 static gboolean
1060 pe_image_load_cli_data (MonoImage *image)
1061 {
1062 MonoCLIImageInfo *iinfo;
1063 MonoDotNetHeader *header;
1064
1065 iinfo = image->image_info;
1066 header = &iinfo->cli_header;
1067
1068 /* Load the CLI header */
1069 if (!mono_image_load_cli_header (image, iinfo))
1070 return FALSE;
1071
1072 if (!mono_image_load_metadata (image, iinfo))
1073 return FALSE;
1074
1075 return TRUE;
1076 }
1077
1078 static void
1079 mono_image_load_time_date_stamp (MonoImage *image)
1080 {
1081 image->time_date_stamp = 0;
1082 #ifndef HOST_WIN32
1083 if (!image->filename)
1084 return;
1085
1086 gunichar2 *uni_name = g_utf8_to_utf16 (image->filename, -1, NULL, NULL, NULL);
1087 mono_pe_file_time_date_stamp (uni_name, &image->time_date_stamp);
1088 g_free (uni_name);
1089 #endif
1090 }
1091
1092 void
1093 mono_image_load_names (MonoImage *image)
1094 {
1095 /* modules don't have an assembly table row */
1096 if (image->tables [MONO_TABLE_ASSEMBLY].rows) {
1097 image->assembly_name = mono_metadata_string_heap (image,
1098 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
1099 0, MONO_ASSEMBLY_NAME));
1100 }
1101
1102 /* Portable pdb images don't have a MODULE row */
1103 if (image->tables [MONO_TABLE_MODULE].rows) {
1104 image->module_name = mono_metadata_string_heap (image,
1105 mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
1106 0, MONO_MODULE_NAME));
1107 }
1108 }
1109
1110 static gboolean
1111 pe_image_load_tables (MonoImage *image)
1112 {
1113 return TRUE;
1114 }
1115
1116 static gboolean
1117 pe_image_match (MonoImage *image)
1118 {
1119 if (image->raw_data [0] == 'M' && image->raw_data [1] == 'Z')
1120 return TRUE;
1121 return FALSE;
1122 }
1123
1124 static const MonoImageLoader pe_loader = {
1125 pe_image_match,
1126 pe_image_load_pe_data,
1127 pe_image_load_cli_data,
1128 pe_image_load_tables,
1129 };
1130
1131 static void
1132 install_pe_loader (void)
1133 {
1134 mono_install_image_loader (&pe_loader);
1135 }
1136
1137 /*
1138 Ignored assemblies.
1139
1140 There are some assemblies we need to ignore because they include an implementation that doesn't work under mono.
1141 Mono provides its own implementation of those assemblies so it's safe to do so.
1142
1143 The ignored_assemblies list is generated using tools/nuget-hash-extractor and feeding the problematic nugets to it.
1144
1145 Right now the list of nugets are the ones that provide the assemblies in $ignored_assemblies_file_names.
1146
1147 This is to be removed once a proper fix is shipped through nuget.
1148
1149 Please keep this in sync with mcs/tools/xbuild/data/deniedAssembliesList.txt
1150 If any assemblies are added/removed, then this should be regenerated with:
1151
1152 $ mono tools/nuget-hash-extractor/nuget-hash-extractor.exe nugets guids_for_msbuild > mcs/tools/xbuild/data/deniedAssembliesList.txt
1153
1154 */
1155
1156 typedef enum {
1157 SYS_RT_INTEROP_RUNTIME_INFO = 0, //System.Runtime.InteropServices.RuntimeInformation
1158 SYS_GLOBALIZATION_EXT = 1, //System.Globalization.Extensions
1159 SYS_IO_COMPRESSION = 2, //System.IO.Compression
1160 SYS_NET_HTTP = 3, //System.Net.Http
1161 SYS_TEXT_ENC_CODEPAGES = 4, //System.Text.Encoding.CodePages
1162 SYS_THREADING_OVERLAPPED = 5, //System.Threading.Overlapped
1163 } IgnoredAssemblyNames;
1164
1165 typedef struct {
1166 int hash;
1167 int assembly_name;
1168 const char guid [40];
1169 } IgnoredAssembly;
1170
1171 typedef struct {
1172 int assembly_name;
1173 guint16 major, minor, build, revision;
1174 } IgnoredAssemblyVersion;
1175
1176 static const char *ignored_assemblies_file_names[] = {
1177 "System.Runtime.InteropServices.RuntimeInformation.dll",
1178 "System.Globalization.Extensions.dll",
1179 "System.IO.Compression.dll",
1180 "System.Net.Http.dll",
1181 "System.Text.Encoding.CodePages.dll",
1182 "System.Threading.Overlapped.dll"
1183 };
1184
1185 #define IGNORED_ASSEMBLY(HASH, NAME, GUID, VER_STR) { (int)HASH, NAME, GUID }
1186
1187 static const IgnoredAssembly ignored_assemblies [] = {
1188 IGNORED_ASSEMBLY (0x10CADA75, SYS_NET_HTTP, "EA2EC6DC-51DD-479C-BFC2-E713FB9E7E47", "4.1.1 net46"),
1189 IGNORED_ASSEMBLY (0x1136045D, SYS_GLOBALIZATION_EXT, "475DBF02-9F68-44F1-8FB5-C9F69F1BD2B1", "4.0.0 net46"),
1190 IGNORED_ASSEMBLY (0x1438EAE0, SYS_RT_INTEROP_RUNTIME_INFO, "F580BAAC-12BD-4716-B486-C0A5E3EE6EEA", "15.5.0-preview-20171027-2 net461"),
1191 IGNORED_ASSEMBLY (0x16BCA997, SYS_RT_INTEROP_RUNTIME_INFO, "CA2D23DE-55E1-45D8-9720-0EBE3EEC1DF2", "2.0.0-preview3-20170622-1 net462"),
1192 IGNORED_ASSEMBLY (0x17A113, SYS_RT_INTEROP_RUNTIME_INFO, "D87389D8-6E9C-48CF-B128-3637018577AF", "2.1.0-preview1-62414-02 net47"),
1193 IGNORED_ASSEMBLY (0x1CBD59A2, SYS_IO_COMPRESSION, "44FCA06C-A510-4B3E-BDBF-D08D697EF65A", "4.1.0 net46"),
1194 IGNORED_ASSEMBLY (0x1EA951BB, SYS_IO_COMPRESSION, "05C07BD4-AFF1-4B12-900B-F0A5EB88DDB4", "2.1.0-preview1-62414-02 net461"),
1195 IGNORED_ASSEMBLY (0x1FB3F8E8, SYS_GLOBALIZATION_EXT, "B9BA8638-25D2-4A3B-B91F-16B3D3799861", "2.1.100-preview-62617-01 net461"),
1196 IGNORED_ASSEMBLY (0x2706B80, SYS_NET_HTTP, "8E2F55F3-D010-417B-A742-21386EDDD388", "2.0.0-preview3-20170622-1 net461"),
1197 IGNORED_ASSEMBLY (0x27726A90, SYS_NET_HTTP, "269B562C-CC15-4736-B1B1-68D4A43CAA98", "4.1.0 net46"),
1198 IGNORED_ASSEMBLY (0x284ECF63, SYS_THREADING_OVERLAPPED, "E933407E-C846-4413-82C5-09F4BCFA67F1", "2.1.0-preview1-62414-02 net461"),
1199 IGNORED_ASSEMBLY (0x358C9723, SYS_GLOBALIZATION_EXT, "5FCD54F0-4B97-4259-875D-30E481F02EA2", "4.0.1 net46"),
1200 IGNORED_ASSEMBLY (0x39C3575D, SYS_GLOBALIZATION_EXT, "3B30D67C-B16B-47BC-B949-9500B5AAAAFB", "2.1.0-preview1-62414-02 net471"),
1201 IGNORED_ASSEMBLY (0x3E21E75A, SYS_TEXT_ENC_CODEPAGES, "67D3A14A-8F55-4C9F-9699-EDD0876369DA", "4.5.0 net461"),
1202 IGNORED_ASSEMBLY (0x420963C4, SYS_NET_HTTP, "084B071E-1637-4B3F-B7CD-6CEF28A6E4AE", "4.3.4 net46"),
1203 IGNORED_ASSEMBLY (0x450A096A, SYS_GLOBALIZATION_EXT, "E9FCFF5B-4DE1-4BDC-9CE8-08C640FC78CC", "4.3.0 net46"),
1204 IGNORED_ASSEMBLY (0x46A4A1C5, SYS_RT_INTEROP_RUNTIME_INFO, "F13660F8-9D0D-419F-BA4E-315693DD26EA", "4.0.0 net45"),
1205 IGNORED_ASSEMBLY (0x472FA630, SYS_NET_HTTP, "09D4A140-061C-4884-9B63-22067E841931", "4.3.2 net46"),
1206 IGNORED_ASSEMBLY (0x4CC79B26, SYS_GLOBALIZATION_EXT, "28006E9A-74DB-45AC-8A8D-030CEBAA272A", "2.0.0-preview3-20170622-1 net461"),
1207 IGNORED_ASSEMBLY (0x4E906129, SYS_NET_HTTP, "27BBDD4C-EAF0-4A95-B172-EE502D76A725", "2.1.100-preview-62617-01 net461"),
1208 IGNORED_ASSEMBLY (0x5E393C29, SYS_IO_COMPRESSION, "3A58A219-266B-47C3-8BE8-4E4F394147AB", "4.3.0 net46"),
1209 IGNORED_ASSEMBLY (0x662BC58F, SYS_IO_COMPRESSION, "C786B28D-0850-4D4C-AED9-FE6B86EE7C31", "2.1.0-preview1-62414-02 net471"),
1210 IGNORED_ASSEMBLY (0x66CEDA9, SYS_THREADING_OVERLAPPED, "A0439CB6-A5E6-4813-A76C-13F92ADDDED5", "2.1.100-preview-62617-01 net461"),
1211 IGNORED_ASSEMBLY (0x6AE7C015, SYS_IO_COMPRESSION, "35DD20B5-8766-476B-B5D2-0EA16EF0A946", "2.1.100-preview-62617-01 net461"),
1212 IGNORED_ASSEMBLY (0x6FE03EE2, SYS_THREADING_OVERLAPPED, "87697E71-D192-4F0B-BAD4-02BBC7793005", "4.3.0 net46"),
1213 IGNORED_ASSEMBLY (0x74EA304F, SYS_RT_INTEROP_RUNTIME_INFO, "E5AE3324-2100-4F77-9E41-AEEF226C9649", "15.5.0-preview-20171027-2 net47"),
1214 IGNORED_ASSEMBLY (0x765A8E04, SYS_RT_INTEROP_RUNTIME_INFO, "E46BA45E-6A63-47CD-AF70-2C3016AFF75A", "2.1.100-preview-62617-01 net461"),
1215 IGNORED_ASSEMBLY (0x786145B9, SYS_RT_INTEROP_RUNTIME_INFO, "0C4BCFB3-F609-4631-93A6-17B19C69D9B6", "2.0.0-preview3-20170622-1 net47"),
1216 IGNORED_ASSEMBLY (0x79F6E37F, SYS_THREADING_OVERLAPPED, "212BEDF2-E3F5-4D59-8C1A-F4D1C58B46CD", "15.5.0-preview-20171027-2 net461"),
1217 IGNORED_ASSEMBLY (0x7D927C2A, SYS_THREADING_OVERLAPPED, "FCBD003B-2BB4-4940-BAEF-63AF520C2336", "4.0.1 net46"),
1218 IGNORED_ASSEMBLY (0x8437178B, SYS_NET_HTTP, "C0E04D9C-70CF-48A6-A179-FBFD8CE69FD0", "4.3.0 net46"),
1219 IGNORED_ASSEMBLY (0x8BFCB05D, SYS_THREADING_OVERLAPPED, "82D565AC-E41C-4E29-9939-C031C88EDBDD", "2.1.100-preview-62617-01 net471"),
1220 IGNORED_ASSEMBLY (0x8CCF2469, SYS_RT_INTEROP_RUNTIME_INFO, "9A3724BF-DF8F-4955-8CFA-41D45F11B586", "2.1.0-preview1-62414-02 net462"),
1221 IGNORED_ASSEMBLY (0x90772EB6, SYS_THREADING_OVERLAPPED, "F4FFC4A6-E694-49D9-81B2-12F2C9A29652", "2.0.0-preview3-20170622-1 net461"),
1222 IGNORED_ASSEMBLY (0x911D9EC3, SYS_TEXT_ENC_CODEPAGES, "C142254F-DEB5-46A7-AE43-6F10320D1D1F", "4.0.1 net46"),
1223 IGNORED_ASSEMBLY (0x96B5F0BA, SYS_NET_HTTP, "DB06A592-E332-44A1-8B85-20CAB3C3C147", "2.1.0-preview1-62414-02 net461"),
1224 IGNORED_ASSEMBLY (0x9DBB28A2, SYS_NET_HTTP, "903A137B-BB3F-464A-94D4-780B89EE5580", "2.1.0-preview1-62414-02 net471"),
1225 IGNORED_ASSEMBLY (0xA2E8EC53, SYS_RT_INTEROP_RUNTIME_INFO, "6D334D4D-0149-4D07-9DEF-CC52213145CE", "2.0.0-preview3-20170622-1 net461"),
1226 IGNORED_ASSEMBLY (0xA3BFE786, SYS_RT_INTEROP_RUNTIME_INFO, "33D296D9-EE6D-404E-BF9F-432A429FF5DA", "15.5.0-preview-20171027-2 net462"),
1227 IGNORED_ASSEMBLY (0xA99E866F, SYS_NET_HTTP, "41ACE450-8F44-455A-97AC-0679E5462071", "2.1.100-preview-62617-01 net471"),
1228 IGNORED_ASSEMBLY (0xAA21986B, SYS_THREADING_OVERLAPPED, "9F5D4F09-787A-458A-BA08-553AA71470F1", "4.0.0 net46"),
1229 IGNORED_ASSEMBLY (0xAF2093B8, SYS_TEXT_ENC_CODEPAGES, "D2B4F262-31A4-4E80-9CFB-26A2249A735E", "4.5.1 net461"),
1230 IGNORED_ASSEMBLY (0xC69BED92, SYS_IO_COMPRESSION, "33AD8174-7781-46FA-A110-33821CCBE810", "15.5.0-preview-20171027-2 net461"),
1231 IGNORED_ASSEMBLY (0xC8D00759, SYS_IO_COMPRESSION, "1332CE2F-1517-4BD7-93FD-7D4BCFBAED66", "2.0.0-preview3-20170622-1 net461"),
1232 IGNORED_ASSEMBLY (0xCA951D5B, SYS_RT_INTEROP_RUNTIME_INFO, "1F37581E-4589-4C71-A465-05C6B9AE966E", "2.1.0-preview1-62414-02 net461"),
1233 IGNORED_ASSEMBLY (0xD00F7419, SYS_THREADING_OVERLAPPED, "3336A2A3-1772-4EF9-A74B-AFDC80A8B21E", "2.1.0-preview1-62414-02 net471"),
1234 IGNORED_ASSEMBLY (0xD07383BB, SYS_RT_INTEROP_RUNTIME_INFO, "DD91439F-3167-478E-BD2C-BF9C036A1395", "4.3.0 net45"),
1235 IGNORED_ASSEMBLY (0xD08A991A, SYS_NET_HTTP, "82C79759-CB3C-4EB6-A17C-BDE85AF00A9B", "15.5.0-preview-20171027-2 net461"),
1236 IGNORED_ASSEMBLY (0xD3ABE53A, SYS_RT_INTEROP_RUNTIME_INFO, "488CE209-4E5D-40E7-BE8C-F81F2B99F13A", "2.1.100-preview-62617-01 net462"),
1237 IGNORED_ASSEMBLY (0xDB9397A9, SYS_NET_HTTP, "56203551-6937-47C1-9246-346A733913EE", "4.3.3 net46"),
1238 IGNORED_ASSEMBLY (0xE16ECCCD, SYS_GLOBALIZATION_EXT, "1A2B9B2A-02F5-4C78-AB0C-7C6D2795CE2B", "2.1.100-preview-62617-01 net471"),
1239 IGNORED_ASSEMBLY (0xE4016B17, SYS_GLOBALIZATION_EXT, "50F4163A-D692-452F-90ED-2F8024BB5319", "15.5.0-preview-20171027-2 net461"),
1240 IGNORED_ASSEMBLY (0xE758DAD4, SYS_IO_COMPRESSION, "8DBD1669-97BC-4190-9BD8-738561193741", "2.1.100-preview-62617-01 net471"),
1241 IGNORED_ASSEMBLY (0xF6D18A2E, SYS_TEXT_ENC_CODEPAGES, "F5CCCBEC-E1AD-4DBB-9B44-9B42C86B94B8", "4.4.0 net461"),
1242 IGNORED_ASSEMBLY (0xF9D06E1E, SYS_GLOBALIZATION_EXT, "FC1439FC-C1B8-4DB1-914D-165CCFA77002", "2.1.0-preview1-62414-02 net461"),
1243 IGNORED_ASSEMBLY (0xFA686A38, SYS_TEXT_ENC_CODEPAGES, "FD178CD4-EF4F-44D5-9C3F-812B1E25126B", "4.3.0 net46"),
1244 IGNORED_ASSEMBLY (0xFAFDA422, SYS_NET_HTTP, "817F01C3-4011-477D-890A-98232B85553D", "4.3.1 net46"),
1245 IGNORED_ASSEMBLY (0xFC67D3A7, SYS_RT_INTEROP_RUNTIME_INFO, "FD6C8616-C1D8-43F9-AC17-A1C48A45FDA2", "2.1.100-preview-62617-01 net47")
1246 };
1247
1248
1249 static const char *ignored_assemblies_names[] = {
1250 "System.Runtime.InteropServices.RuntimeInformation",
1251 "System.Globalization.Extensions",
1252 "System.IO.Compression",
1253 "System.Net.Http",
1254 "System.Text.Encoding.CodePages",
1255 "System.Threading.Overlapped"
1256 };
1257
1258 #define IGNORED_ASM_VER(NAME, MAJOR, MINOR, BUILD, REVISION) { NAME, MAJOR, MINOR, BUILD, REVISION }
1259
1260 static const IgnoredAssemblyVersion ignored_assembly_versions [] = {
1261 IGNORED_ASM_VER (SYS_GLOBALIZATION_EXT, 4, 0, 0, 0),
1262 IGNORED_ASM_VER (SYS_GLOBALIZATION_EXT, 4, 0, 1, 0),
1263 IGNORED_ASM_VER (SYS_GLOBALIZATION_EXT, 4, 0, 2, 0),
1264 IGNORED_ASM_VER (SYS_GLOBALIZATION_EXT, 4, 1, 0, 0),
1265 IGNORED_ASM_VER (SYS_IO_COMPRESSION, 4, 1, 0, 0),
1266 IGNORED_ASM_VER (SYS_IO_COMPRESSION, 4, 1, 2, 0),
1267 IGNORED_ASM_VER (SYS_IO_COMPRESSION, 4, 2, 0, 0),
1268 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 1, 0, 0),
1269 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 1, 0, 1),
1270 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 1, 1, 0),
1271 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 1, 1, 1),
1272 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 1, 1, 2),
1273 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 1, 1, 3),
1274 IGNORED_ASM_VER (SYS_NET_HTTP, 4, 2, 0, 0),
1275 IGNORED_ASM_VER (SYS_RT_INTEROP_RUNTIME_INFO, 4, 0, 0, 0),
1276 IGNORED_ASM_VER (SYS_RT_INTEROP_RUNTIME_INFO, 4, 0, 1, 0),
1277 IGNORED_ASM_VER (SYS_RT_INTEROP_RUNTIME_INFO, 4, 0, 2, 0),
1278 IGNORED_ASM_VER (SYS_TEXT_ENC_CODEPAGES, 4, 0, 1, 0),
1279 IGNORED_ASM_VER (SYS_TEXT_ENC_CODEPAGES, 4, 0, 2, 0),
1280 IGNORED_ASM_VER (SYS_TEXT_ENC_CODEPAGES, 4, 1, 0, 0),
1281 IGNORED_ASM_VER (SYS_TEXT_ENC_CODEPAGES, 4, 1, 1, 0),
1282 IGNORED_ASM_VER (SYS_THREADING_OVERLAPPED, 4, 0, 0, 0),
1283 IGNORED_ASM_VER (SYS_THREADING_OVERLAPPED, 4, 0, 1, 0),
1284 IGNORED_ASM_VER (SYS_THREADING_OVERLAPPED, 4, 0, 2, 0),
1285 IGNORED_ASM_VER (SYS_THREADING_OVERLAPPED, 4, 1, 0, 0)
1286 };
1287
1288 gboolean
1289 mono_assembly_is_problematic_version (const char *name, guint16 major, guint16 minor, guint16 build, guint16 revision)
1290 {
1291 for (int i = 0; i < G_N_ELEMENTS (ignored_assembly_versions); ++i) {
1292 if (ignored_assembly_versions [i].major != major ||
1293 ignored_assembly_versions [i].minor != minor ||
1294 ignored_assembly_versions [i].build != build ||
1295 ignored_assembly_versions [i].revision != revision)
1296 continue;
1297 if (!strcmp (ignored_assemblies_names [ignored_assembly_versions [i].assembly_name], name))
1298 return TRUE;
1299 }
1300 return FALSE;
1301 }
1302
1303 /*
1304 Equivalent C# code:
1305 static void Main () {
1306 string str = "...";
1307 int h = 5381;
1308 for (int i = 0; i < str.Length; ++i)
1309 h = ((h << 5) + h) ^ str[i];
1310
1311 Console.WriteLine ("{0:X}", h);
1312 }
1313 */
1314 static int
1315 hash_guid (const char *str)
1316 {
1317 int h = 5381;
1318 while (*str) {
1319 h = ((h << 5) + h) ^ *str;
1320 ++str;
1321 }
1322
1323 return h;
1324 }
1325
1326 gboolean
1327 mono_is_problematic_image (MonoImage *image)
1328 {
1329 int h = hash_guid (image->guid);
1330
1331 //TODO make this more cache effiecient.
1332 // Either sort by hash and bseach or use SoA and make the linear search more cache efficient.
1333 for (int i = 0; i < G_N_ELEMENTS (ignored_assemblies); ++i) {
1334 if (ignored_assemblies [i].hash == h && !strcmp (image->guid, ignored_assemblies [i].guid)) {
1335 const char *needle = ignored_assemblies_file_names [ignored_assemblies [i].assembly_name];
1336 size_t needle_len = strlen (needle);
1337 size_t asm_len = strlen (image->name);
1338 if (asm_len > needle_len && !g_ascii_strcasecmp (image->name + (asm_len - needle_len), needle))
1339 return TRUE;
1340 }
1341 }
1342 return FALSE;
1343 }
1344
1345 static MonoImage *
1346 do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
1347 gboolean care_about_cli, gboolean care_about_pecoff)
1348 {
1349 ERROR_DECL (error);
1350 MonoCLIImageInfo *iinfo;
1351 MonoDotNetHeader *header;
1352 GSList *l;
1353
1354 MONO_PROFILER_RAISE (image_loading, (image));
1355
1356 mono_image_init (image);
1357
1358 iinfo = image->image_info;
1359 header = &iinfo->cli_header;
1360
1361 if (!image->metadata_only) {
1362 for (l = image_loaders; l; l = l->next) {
1363 MonoImageLoader *loader = (MonoImageLoader *)l->data;
1364 if (loader->match (image)) {
1365 image->loader = loader;
1366 break;
1367 }
1368 }
1369 if (!image->loader) {
1370 if (status)
1371 *status = MONO_IMAGE_IMAGE_INVALID;
1372 goto invalid_image;
1373 }
1374
1375 if (status)
1376 *status = MONO_IMAGE_IMAGE_INVALID;
1377
1378 if (care_about_pecoff == FALSE)
1379 goto done;
1380
1381 if (image->loader == &pe_loader && !mono_verifier_verify_pe_data (image, error))
1382 goto invalid_image;
1383
1384 if (!mono_image_load_pe_data (image))
1385 goto invalid_image;
1386 } else {
1387 image->loader = (MonoImageLoader*)&pe_loader;
1388 }
1389
1390 if (care_about_cli == FALSE) {
1391 goto done;
1392 }
1393
1394 if (image->loader == &pe_loader && !image->metadata_only && !mono_verifier_verify_cli_data (image, error))
1395 goto invalid_image;
1396
1397 if (!mono_image_load_cli_data (image))
1398 goto invalid_image;
1399
1400 if (!image->ref_only && mono_is_problematic_image (image)) {
1401 if (image->load_from_context) {
1402 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Loading problematic image %s", image->name);
1403 } else {
1404 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Denying load of problematic image %s", image->name);
1405 if (status)
1406 *status = MONO_IMAGE_IMAGE_INVALID;
1407 goto invalid_image;
1408 }
1409 }
1410
1411 if (image->loader == &pe_loader && !image->metadata_only && !mono_verifier_verify_table_data (image, error))
1412 goto invalid_image;
1413
1414 mono_image_load_names (image);
1415
1416 mono_image_load_time_date_stamp (image);
1417
1418 load_modules (image);
1419
1420 done:
1421 MONO_PROFILER_RAISE (image_loaded, (image));
1422 if (status)
1423 *status = MONO_IMAGE_OK;
1424
1425 return image;
1426
1427 invalid_image:
1428 if (!is_ok (error)) {
1429 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Could not load image %s due to %s", image->name, mono_error_get_message (error));
1430 mono_error_cleanup (error);
1431 }
1432 MONO_PROFILER_RAISE (image_failed, (image));
1433 mono_image_close (image);
1434 return NULL;
1435 }
1436
1437 static gboolean
1438 mono_image_storage_trypublish (MonoImageStorage *candidate, MonoImageStorage **out_storage)
1439 {
1440 gboolean result;
1441 mono_images_storage_lock ();
1442 MonoImageStorage *val = (MonoImageStorage *)g_hash_table_lookup (images_storage_hash, candidate->key);
1443 if (val) {
1444 mono_refcount_inc (val);
1445 *out_storage = val;
1446 result = FALSE;
1447 } else {
1448 g_hash_table_insert (images_storage_hash, candidate->key, candidate);
1449 result = TRUE;
1450 }
1451 mono_images_storage_unlock ();
1452 return result;
1453 }
1454
1455 static void
1456 mono_image_storage_unpublish (MonoImageStorage *storage)
1457 {
1458 mono_images_storage_lock ();
1459 g_assert (storage->ref.ref == 0);
1460
1461 MonoImageStorage *published = (MonoImageStorage *)g_hash_table_lookup (images_storage_hash, storage->key);
1462 if (published == storage) {
1463 g_hash_table_remove (images_storage_hash, storage->key);
1464 }
1465
1466 mono_images_storage_unlock ();
1467 }
1468
1469 static gboolean
1470 mono_image_storage_tryaddref (const char *key, MonoImageStorage **found)
1471 {
1472 gboolean result = FALSE;
1473 mono_images_storage_lock ();
1474 MonoImageStorage *val = (MonoImageStorage *)g_hash_table_lookup (images_storage_hash, key);
1475 if (val) {
1476 mono_refcount_inc (val);
1477 *found = val;
1478 result = TRUE;
1479 }
1480 mono_images_storage_unlock ();
1481 return result;
1482 }
1483
1484 static void
1485 mono_image_storage_dtor (gpointer self)
1486 {
1487 MonoImageStorage *storage = (MonoImageStorage *)self;
1488
1489 mono_image_storage_unpublish (storage);
1490
1491 #ifdef HOST_WIN32
1492 if (storage->is_module_handle && !storage->has_entry_point) {
1493 mono_images_lock ();
1494 FreeLibrary ((HMODULE) storage->raw_data);
1495 mono_images_unlock ();
1496 }
1497 #endif
1498
1499 if (storage->raw_buffer_used) {
1500 if (storage->raw_data != NULL) {
1501 #ifndef HOST_WIN32
1502 if (storage->fileio_used)
1503 mono_file_unmap_fileio (storage->raw_data, storage->raw_data_handle);
1504 else
1505 #endif
1506 mono_file_unmap (storage->raw_data, storage->raw_data_handle);
1507 }
1508 }
1509 if (storage->raw_data_allocated) {
1510 g_free (storage->raw_data);
1511 }
1512
1513 g_free (storage->key);
1514
1515 g_free (storage);
1516 }
1517
1518 static void
1519 mono_image_storage_close (MonoImageStorage *storage)
1520 {
1521 mono_refcount_dec (storage);
1522 }
1523
1524 static gboolean
1525 mono_image_init_raw_data (MonoImage *image, const MonoImageStorage *storage)
1526 {
1527 if (!storage)
1528 return FALSE;
1529 image->raw_data = storage->raw_data;
1530 image->raw_data_len = storage->raw_data_len;
1531 return TRUE;
1532 }
1533
1534 static MonoImageStorage *
1535 mono_image_storage_open (const char *fname)
1536 {
1537 char *key = NULL;
1538
1539 key = mono_path_resolve_symlinks (fname);
1540 MonoImageStorage *published_storage = NULL;
1541 if (mono_image_storage_tryaddref (key, &published_storage)) {
1542 g_free (key);
1543 return published_storage;
1544 }
1545
1546 MonoFileMap *filed;
1547 if ((filed = mono_file_map_open (fname)) == NULL){
1548 if (IS_PORTABILITY_SET) {
1549 gchar *ffname = mono_portability_find_file (fname, TRUE);
1550 if (ffname) {
1551 filed = mono_file_map_open (ffname);
1552 g_free (ffname);
1553 }
1554 }
1555
1556 if (filed == NULL) {
1557 g_free (key);
1558 return NULL;
1559 }
1560 }
1561
1562 MonoImageStorage *storage = g_new0 (MonoImageStorage, 1);
1563 mono_refcount_init (storage, mono_image_storage_dtor);
1564 storage->raw_buffer_used = TRUE;
1565 storage->raw_data_len = mono_file_map_size (filed);
1566 storage->raw_data = (char*)mono_file_map (storage->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &storage->raw_data_handle);
1567 #if defined(HAVE_MMAP) && !defined (HOST_WIN32)
1568 if (!storage->raw_data) {
1569 storage->fileio_used = TRUE;
1570 storage->raw_data = (char *)mono_file_map_fileio (storage->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &storage->raw_data_handle);
1571 }
1572 #endif
1573 mono_file_map_close (filed);
1574
1575 storage->key = key;
1576
1577 MonoImageStorage *other_storage = NULL;
1578 if (!mono_image_storage_trypublish (storage, &other_storage)) {
1579 mono_image_storage_close (storage);
1580 storage = other_storage;
1581 }
1582 return storage;
1583 }
1584
1585 static MonoImageStorage *
1586 mono_image_storage_new_raw_data (char *datac, guint32 data_len, gboolean raw_data_allocated, const char *name)
1587 {
1588 char *key = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup (name);
1589 MonoImageStorage *published_storage = NULL;
1590 if (mono_image_storage_tryaddref (key, &published_storage)) {
1591 g_free (key);
1592 return published_storage;
1593 }
1594
1595 MonoImageStorage *storage = g_new0 (MonoImageStorage, 1);
1596 mono_refcount_init (storage, mono_image_storage_dtor);
1597
1598 storage->raw_data = datac;
1599 storage->raw_data_len = data_len;
1600 storage->raw_data_allocated = raw_data_allocated;
1601
1602 storage->key = key;
1603 MonoImageStorage *other_storage = NULL;
1604 if (!mono_image_storage_trypublish (storage, &other_storage)) {
1605 mono_image_storage_close (storage);
1606 storage = other_storage;
1607 }
1608 return storage;
1609 }
1610
1611 static MonoImage *
1612 do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
1613 gboolean care_about_cli, gboolean care_about_pecoff, gboolean refonly, gboolean metadata_only, gboolean load_from_context)
1614 {
1615 MonoCLIImageInfo *iinfo;
1616 MonoImage *image;
1617
1618 MonoImageStorage *storage = mono_image_storage_open (fname);
1619
1620 if (!storage) {
1621 if (status)
1622 *status = MONO_IMAGE_ERROR_ERRNO;
1623 return NULL;
1624 }
1625
1626 image = g_new0 (MonoImage, 1);
1627 image->storage = storage;
1628 mono_image_init_raw_data (image, storage);
1629 if (!image->raw_data) {
1630 mono_image_storage_close (image->storage);
1631 g_free (image);
1632 if (status)
1633 *status = MONO_IMAGE_IMAGE_INVALID;
1634 return NULL;
1635 }
1636 iinfo = g_new0 (MonoCLIImageInfo, 1);
1637 image->image_info = iinfo;
1638 image->name = mono_path_resolve_symlinks (fname);
1639 image->filename = g_strdup (image->name);
1640 image->ref_only = refonly;
1641 image->metadata_only = metadata_only;
1642 image->load_from_context = load_from_context;
1643 image->ref_count = 1;
1644 /* if MONO_SECURITY_MODE_CORE_CLR is set then determine if this image is platform code */
1645 image->core_clr_platform_code = mono_security_core_clr_determine_platform_image (image);
1646
1647 return do_mono_image_load (image, status, care_about_cli, care_about_pecoff);
1648 }
1649
1650 /**
1651 * mono_image_loaded_full:
1652 * \param name path or assembly name of the image to load
1653 * \param refonly Check with respect to reflection-only loads?
1654 *
1655 * This routine verifies that the given image is loaded.
1656 * It checks either reflection-only loads only, or normal loads only, as specified by parameter.
1657 *
1658 * \returns the loaded \c MonoImage, or NULL on failure.
1659 */
1660 MonoImage *
1661 mono_image_loaded_full (const char *name, gboolean refonly)
1662 {
1663 MonoImage *result;
1664 MONO_ENTER_GC_UNSAFE;
1665 result = mono_image_loaded_internal (name, refonly);
1666 MONO_EXIT_GC_UNSAFE;
1667 return result;
1668 }
1669
1670 /**
1671 * mono_image_loaded_internal:
1672 * \param name path or assembly name of the image to load
1673 * \param refonly Check with respect to reflection-only loads?
1674 *
1675 * This routine verifies that the given image is loaded.
1676 * It checks either reflection-only loads only, or normal loads only, as specified by parameter.
1677 *
1678 * \returns the loaded \c MonoImage, or NULL on failure.
1679 */
1680 MonoImage *
1681 mono_image_loaded_internal (const char *name, gboolean refonly)
1682 {
1683 MonoImage *res;
1684
1685 mono_images_lock ();
1686 res = (MonoImage *)g_hash_table_lookup (get_loaded_images_hash (refonly), name);
1687 if (!res)
1688 res = (MonoImage *)g_hash_table_lookup (get_loaded_images_by_name_hash (refonly), name);
1689 mono_images_unlock ();
1690
1691 return res;
1692 }
1693
1694 /**
1695 * mono_image_loaded:
1696 * \param name path or assembly name of the image to load
1697 * This routine verifies that the given image is loaded. Reflection-only loads do not count.
1698 * \returns the loaded \c MonoImage, or NULL on failure.
1699 */
1700 MonoImage *
1701 mono_image_loaded (const char *name)
1702 {
1703 MonoImage *result;
1704 MONO_ENTER_GC_UNSAFE;
1705 result = mono_image_loaded_internal (name, FALSE);
1706 MONO_EXIT_GC_UNSAFE;
1707 return result;
1708 }
1709
1710 typedef struct {
1711 MonoImage *res;
1712 const char* guid;
1713 } GuidData;
1714
1715 static void
1716 find_by_guid (gpointer key, gpointer val, gpointer user_data)
1717 {
1718 GuidData *data = (GuidData *)user_data;
1719 MonoImage *image;
1720
1721 if (data->res)
1722 return;
1723 image = (MonoImage *)val;
1724 if (strcmp (data->guid, mono_image_get_guid (image)) == 0)
1725 data->res = image;
1726 }
1727
1728 /**
1729 * mono_image_loaded_by_guid_full:
1730 */
1731 MonoImage *
1732 mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
1733 {
1734 GuidData data;
1735 GHashTable *loaded_images = get_loaded_images_hash (refonly);
1736 data.res = NULL;
1737 data.guid = guid;
1738
1739 mono_images_lock ();
1740 g_hash_table_foreach (loaded_images, find_by_guid, &data);
1741 mono_images_unlock ();
1742 return data.res;
1743 }
1744
1745 /**
1746 * mono_image_loaded_by_guid:
1747 */
1748 MonoImage *
1749 mono_image_loaded_by_guid (const char *guid)
1750 {
1751 return mono_image_loaded_by_guid_full (guid, FALSE);
1752 }
1753
1754 static MonoImage *
1755 register_image (MonoImage *image)
1756 {
1757 MonoImage *image2;
1758 GHashTable *loaded_images = get_loaded_images_hash (image->ref_only);
1759
1760 mono_images_lock ();
1761 image2 = (MonoImage *)g_hash_table_lookup (loaded_images, image->name);
1762
1763 if (image2) {
1764 /* Somebody else beat us to it */
1765 mono_image_addref (image2);
1766 mono_images_unlock ();
1767 mono_image_close (image);
1768 return image2;
1769 }
1770
1771 GHashTable *loaded_images_by_name = get_loaded_images_by_name_hash (image->ref_only);
1772 g_hash_table_insert (loaded_images, image->name, image);
1773 if (image->assembly_name && (g_hash_table_lookup (loaded_images_by_name, image->assembly_name) == NULL))
1774 g_hash_table_insert (loaded_images_by_name, (char *) image->assembly_name, image);
1775 mono_images_unlock ();
1776
1777 if (mono_is_problematic_image (image)) {
1778 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_ASSEMBLY, "Registering %s, problematic image '%s'", image->ref_only ? "REFONLY" : "default", image->name);
1779 }
1780 return image;
1781 }
1782
1783 MonoImage *
1784 mono_image_open_from_data_internal (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, gboolean metadata_only, const char *name)
1785 {
1786 MonoCLIImageInfo *iinfo;
1787 MonoImage *image;
1788 char *datac;
1789
1790 if (!data || !data_len) {
1791 if (status)
1792 *status = MONO_IMAGE_IMAGE_INVALID;
1793 return NULL;
1794 }
1795 datac = data;
1796 if (need_copy) {
1797 datac = (char *)g_try_malloc (data_len);
1798 if (!datac) {
1799 if (status)
1800 *status = MONO_IMAGE_ERROR_ERRNO;
1801 return NULL;
1802 }
1803 memcpy (datac, data, data_len);
1804 }
1805
1806 MonoImageStorage *storage = mono_image_storage_new_raw_data (datac, data_len, need_copy, name);
1807 image = g_new0 (MonoImage, 1);
1808 image->storage = storage;
1809 mono_image_init_raw_data (image, storage);
1810 image->name = (name == NULL) ? g_strdup_printf ("data-%p", datac) : g_strdup(name);
1811 iinfo = g_new0 (MonoCLIImageInfo, 1);
1812 image->image_info = iinfo;
1813 image->ref_only = refonly;
1814 image->metadata_only = metadata_only;
1815 image->ref_count = 1;
1816
1817 image = do_mono_image_load (image, status, TRUE, TRUE);
1818 if (image == NULL)
1819 return NULL;
1820
1821 return register_image (image);
1822 }
1823
1824 /**
1825 * mono_image_open_from_data_with_name:
1826 */
1827 MonoImage *
1828 mono_image_open_from_data_with_name (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, const char *name)
1829 {
1830 MonoImage *result;
1831 MONO_ENTER_GC_UNSAFE;
1832 result = mono_image_open_from_data_internal (data, data_len, need_copy, status, refonly, FALSE, name);
1833 MONO_EXIT_GC_UNSAFE;
1834 return result;
1835 }
1836
1837 /**
1838 * mono_image_open_from_data_full:
1839 */
1840 MonoImage *
1841 mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
1842 {
1843 MonoImage *result;
1844 MONO_ENTER_GC_UNSAFE;
1845 result = mono_image_open_from_data_internal (data, data_len, need_copy, status, refonly, FALSE, NULL);
1846 MONO_EXIT_GC_UNSAFE;
1847 return result;
1848 }
1849
1850 /**
1851 * mono_image_open_from_data:
1852 */
1853 MonoImage *
1854 mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
1855 {
1856 MonoImage *result;
1857 MONO_ENTER_GC_UNSAFE;
1858 result = mono_image_open_from_data_internal (data, data_len, need_copy, status, FALSE, FALSE, NULL);
1859 MONO_EXIT_GC_UNSAFE;
1860 return result;
1861 }
1862
1863 #ifdef HOST_WIN32
1864 static MonoImageStorage *
1865 mono_image_storage_open_from_module_handle (HMODULE module_handle, const char *fname, gboolean has_entry_point)
1866 {
1867 char *key = g_strdup (fname);
1868 MonoImageStorage *published_storage = NULL;
1869 if (mono_image_storage_tryaddref (key, &published_storage)) {
1870 g_free (key);
1871 return published_storage;
1872 }
1873
1874 MonoImageStorage *storage = g_new0 (MonoImageStorage, 1);
1875 mono_refcount_init (storage, mono_image_storage_dtor);
1876 storage->raw_data = (char*) module_handle;
1877 storage->is_module_handle = TRUE;
1878 storage->has_entry_point = has_entry_point;
1879
1880 storage->key = key;
1881
1882 MonoImageStorage *other_storage = NULL;
1883 if (!mono_image_storage_trypublish (storage, &other_storage)) {
1884 mono_image_storage_close (storage);
1885 storage = other_storage;
1886 }
1887 return storage;
1888 }
1889
1890 /* fname is not duplicated. */
1891 MonoImage*
1892 mono_image_open_from_module_handle (HMODULE module_handle, char* fname, gboolean has_entry_point, MonoImageOpenStatus* status)
1893 {
1894 MonoImage* image;
1895 MonoCLIImageInfo* iinfo;
1896
1897 MonoImageStorage *storage = mono_image_storage_open_from_module_handle (module_handle, fname, has_entry_point);
1898 image = g_new0 (MonoImage, 1);
1899 image->storage = storage;
1900 mono_image_init_raw_data (image, storage);
1901 iinfo = g_new0 (MonoCLIImageInfo, 1);
1902 image->image_info = iinfo;
1903 image->name = fname;
1904 image->ref_count = has_entry_point ? 0 : 1;
1905
1906 image = do_mono_image_load (image, status, TRUE, TRUE);
1907 if (image == NULL)
1908 return NULL;
1909
1910 return register_image (image);
1911 }
1912 #endif
1913
1914 /**
1915 * mono_image_open_full:
1916 */
1917 MonoImage *
1918 mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
1919 {
1920 return mono_image_open_a_lot (fname, status, refonly, FALSE);
1921 }
1922
1923 static MonoImage *
1924 mono_image_open_a_lot_parameterized (const char *fname, MonoImageOpenStatus *status, gboolean refonly, gboolean load_from_context, gboolean *problematic)
1925 {
1926 MonoImage *image;
1927 GHashTable *loaded_images = get_loaded_images_hash (refonly);
1928 char *absfname;
1929
1930 g_return_val_if_fail (fname != NULL, NULL);
1931
1932 #ifdef HOST_WIN32
1933 // Win32 path: If we are running with mixed-mode assemblies enabled (ie have loaded mscoree.dll),
1934 // then assemblies need to be loaded with LoadLibrary:
1935 if (!refonly && coree_module_handle) {
1936 HMODULE module_handle;
1937 gunichar2 *fname_utf16;
1938 DWORD last_error;
1939
1940 absfname = mono_path_resolve_symlinks (fname);
1941 fname_utf16 = NULL;
1942
1943 /* There is little overhead because the OS loader lock is held by LoadLibrary. */
1944 mono_images_lock ();
1945 image = (MonoImage*)g_hash_table_lookup (loaded_images, absfname);
1946 if (image) { // Image already loaded
1947 if (!load_from_context && mono_is_problematic_image (image)) {
1948 // If we previously loaded a problematic image, don't
1949 // return it if we're not in LoadFrom context.
1950 //
1951 // Note: this has an interaction with
1952 // mono_problematic_image_reprobe - at that point we
1953 // have a problematic image opened, but we don't want
1954 // to see it again when we go searching for an image
1955 // to load.
1956 mono_images_unlock ();
1957 return NULL;
1958 }
1959 g_assert (m_image_is_module_handle (image));
1960 if (m_image_has_entry_point (image) && image->ref_count == 0) {
1961 /* Increment reference count on images loaded outside of the runtime. */
1962 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1963 /* The image is already loaded because _CorDllMain removes images from the hash. */
1964 module_handle = LoadLibrary (fname_utf16);
1965 g_assert (module_handle == (HMODULE) image->raw_data);
1966 }
1967 mono_image_addref (image);
1968 mono_images_unlock ();
1969 if (fname_utf16)
1970 g_free (fname_utf16);
1971 g_free (absfname);
1972 return image;
1973 }
1974
1975 // Image not loaded, load it now
1976 fname_utf16 = g_utf8_to_utf16 (absfname, -1, NULL, NULL, NULL);
1977 module_handle = MonoLoadImage (fname_utf16);
1978 if (status && module_handle == NULL)
1979 last_error = mono_w32error_get_last ();
1980
1981 /* mono_image_open_from_module_handle is called by _CorDllMain. */
1982 image = (MonoImage*)g_hash_table_lookup (loaded_images, absfname);
1983 if (image)
1984 mono_image_addref (image);
1985 mono_images_unlock ();
1986
1987 g_free (fname_utf16);
1988
1989 if (module_handle == NULL) {
1990 g_assert (!image);
1991 g_free (absfname);
1992 if (status) {
1993 if (last_error == ERROR_BAD_EXE_FORMAT || last_error == STATUS_INVALID_IMAGE_FORMAT) {
1994 if (status)
1995 *status = MONO_IMAGE_IMAGE_INVALID;
1996 } else {
1997 if (last_error == ERROR_FILE_NOT_FOUND || last_error == ERROR_PATH_NOT_FOUND)
1998 mono_set_errno (ENOENT);
1999 else
2000 mono_set_errno (0);
2001 }
2002 }
2003 return NULL;
2004 }
2005
2006 if (image) {
2007 g_assert (m_image_is_module_handle (image));
2008 g_assert (m_image_has_entry_point (image));
2009 g_free (absfname);
2010 return image;
2011 }
2012
2013 return mono_image_open_from_module_handle (module_handle, absfname, FALSE, status);
2014 }
2015 #endif
2016
2017 absfname = mono_path_resolve_symlinks (fname);
2018
2019 /*
2020 * The easiest solution would be to do all the loading inside the mutex,
2021 * but that would lead to scalability problems. So we let the loading
2022 * happen outside the mutex, and if multiple threads happen to load
2023 * the same image, we discard all but the first copy.
2024 */
2025 mono_images_lock ();
2026 image = (MonoImage *)g_hash_table_lookup (loaded_images, absfname);
2027 g_free (absfname);
2028
2029 if (image) { // Image already loaded
2030 if (!refonly && !load_from_context && mono_is_problematic_image (image)) {
2031 // If we previously loaded a problematic image, don't
2032 // return it if we're not in LoadFrom context.
2033 //
2034 // Note: this has an interaction with
2035 // mono_problematic_image_reprobe - at that point we
2036 // have a problematic image opened, but we don't want
2037 // to see it again when we go searching for an image
2038 // to load.
2039 mono_images_unlock ();
2040 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_ASSEMBLY, "Not returning problematic image '%s' refcount=%d", image->name, image->ref_count);
2041 if (problematic)
2042 *problematic = TRUE;
2043 return NULL;
2044 }
2045 mono_image_addref (image);
2046 mono_images_unlock ();
2047 return image;
2048 }
2049 mono_images_unlock ();
2050
2051 // Image not loaded, load it now
2052 image = do_mono_image_open (fname, status, TRUE, TRUE, refonly, FALSE, load_from_context);
2053 if (problematic)
2054 *problematic = TRUE;
2055 if (image == NULL)
2056 return NULL;
2057
2058 return register_image (image);
2059 }
2060
2061 MonoImage *
2062 mono_image_open_a_lot (const char *fname, MonoImageOpenStatus *status, gboolean refonly, gboolean load_from_context)
2063 {
2064 return mono_image_open_a_lot_parameterized (fname, status, refonly, load_from_context, NULL);
2065 }
2066
2067 gboolean
2068 mono_is_problematic_file (const char *fname)
2069 {
2070 MonoImageOpenStatus status;
2071 gboolean problematic = FALSE;
2072
2073 MonoImage *opened = mono_image_open_a_lot_parameterized (fname, &status, FALSE, FALSE, &problematic);
2074 if (opened)
2075 mono_image_close (opened);
2076
2077 return problematic;
2078 }
2079
2080
2081 /**
2082 * mono_image_open:
2083 * \param fname filename that points to the module we want to open
2084 * \param status An error condition is returned in this field
2085 * \returns An open image of type \c MonoImage or NULL on error.
2086 * The caller holds a temporary reference to the returned image which should be cleared
2087 * when no longer needed by calling \c mono_image_close.
2088 * if NULL, then check the value of \p status for details on the error
2089 */
2090 MonoImage *
2091 mono_image_open (const char *fname, MonoImageOpenStatus *status)
2092 {
2093 return mono_image_open_full (fname, status, FALSE);
2094 }
2095
2096 /**
2097 * mono_pe_file_open:
2098 * \param fname filename that points to the module we want to open
2099 * \param status An error condition is returned in this field
2100 * \returns An open image of type \c MonoImage or NULL on error. if
2101 * NULL, then check the value of \p status for details on the error.
2102 * This variant for \c mono_image_open DOES NOT SET UP CLI METADATA.
2103 * It's just a PE file loader, used for \c FileVersionInfo. It also does
2104 * not use the image cache.
2105 */
2106 MonoImage *
2107 mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
2108 {
2109 g_return_val_if_fail (fname != NULL, NULL);
2110
2111 return do_mono_image_open (fname, status, FALSE, TRUE, FALSE, FALSE, FALSE);
2112 }
2113
2114 /**
2115 * mono_image_open_raw
2116 * \param fname filename that points to the module we want to open
2117 * \param status An error condition is returned in this field
2118 * \returns an image without loading neither pe or cli data.
2119 * Use mono_image_load_pe_data and mono_image_load_cli_data to load them.
2120 */
2121 MonoImage *
2122 mono_image_open_raw (const char *fname, MonoImageOpenStatus *status)
2123 {
2124 g_return_val_if_fail (fname != NULL, NULL);
2125
2126 return do_mono_image_open (fname, status, FALSE, FALSE, FALSE, FALSE, FALSE);
2127 }
2128
2129 /*
2130 * mono_image_open_metadata_only:
2131 *
2132 * Open an image which contains metadata only without a PE header.
2133 */
2134 MonoImage *
2135 mono_image_open_metadata_only (const char *fname, MonoImageOpenStatus *status)
2136 {
2137 return do_mono_image_open (fname, status, TRUE, TRUE, FALSE, TRUE, FALSE);
2138 }
2139
2140 /**
2141 * mono_image_fixup_vtable:
2142 */
2143 void
2144 mono_image_fixup_vtable (MonoImage *image)
2145 {
2146 #ifdef HOST_WIN32
2147 MonoCLIImageInfo *iinfo;
2148 MonoPEDirEntry *de;
2149 MonoVTableFixup *vtfixup;
2150 int count;
2151 gpointer slot;
2152 guint16 slot_type;
2153 int slot_count;
2154
2155 g_assert (m_image_is_module_handle (image));
2156
2157 iinfo = image->image_info;
2158 de = &iinfo->cli_cli_header.ch_vtable_fixups;
2159 if (!de->rva || !de->size)
2160 return;
2161 vtfixup = (MonoVTableFixup*) mono_image_rva_map (image, de->rva);
2162 if (!vtfixup)
2163 return;
2164
2165 count = de->size / sizeof (MonoVTableFixup);
2166 while (count--) {
2167 if (!vtfixup->rva || !vtfixup->count)
2168 continue;
2169
2170 slot = mono_image_rva_map (image, vtfixup->rva);
2171 g_assert (slot);
2172 slot_type = vtfixup->type;
2173 slot_count = vtfixup->count;
2174 if (slot_type & VTFIXUP_TYPE_32BIT)
2175 while (slot_count--) {
2176 *((guint32*) slot) = (guint32)(gsize)mono_marshal_get_vtfixup_ftnptr (image, *((guint32*) slot), slot_type);
2177 slot = ((guint32*) slot) + 1;
2178 }
2179 else if (slot_type & VTFIXUP_TYPE_64BIT)
2180 while (slot_count--) {
2181 *((guint64*) slot) = (guint64) mono_marshal_get_vtfixup_ftnptr (image, *((guint64*) slot), slot_type);
2182 slot = ((guint32*) slot) + 1;
2183 }
2184 else
2185 g_assert_not_reached();
2186
2187 vtfixup++;
2188 }
2189 #else
2190 g_assert_not_reached();
2191 #endif
2192 }
2193
2194 static void
2195 free_hash_table (gpointer key, gpointer val, gpointer user_data)
2196 {
2197 g_hash_table_destroy ((GHashTable*)val);
2198 }
2199
2200 /*
2201 static void
2202 free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
2203 {
2204 mono_metadata_free_method_signature ((MonoMethodSignature*)val);
2205 }
2206 */
2207
2208 static void
2209 free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
2210 {
2211 g_slist_free ((GSList*)val);
2212 }
2213
2214 /**
2215 * mono_image_addref:
2216 * \param image The image file we wish to add a reference to
2217 * Increases the reference count of an image.
2218 */
2219 void
2220 mono_image_addref (MonoImage *image)
2221 {
2222 mono_atomic_inc_i32 (&image->ref_count);
2223 }
2224
2225 void
2226 mono_dynamic_stream_reset (MonoDynamicStream* stream)
2227 {
2228 stream->alloc_size = stream->index = stream->offset = 0;
2229 g_free (stream->data);
2230 stream->data = NULL;
2231 if (stream->hash) {
2232 g_hash_table_destroy (stream->hash);
2233 stream->hash = NULL;
2234 }
2235 }
2236
2237 static inline void
2238 free_hash (GHashTable *hash)
2239 {
2240 if (hash)
2241 g_hash_table_destroy (hash);
2242 }
2243
2244 void
2245 mono_wrapper_caches_free (MonoWrapperCaches *cache)
2246 {
2247 free_hash (cache->delegate_invoke_cache);
2248 free_hash (cache->delegate_begin_invoke_cache);
2249 free_hash (cache->delegate_end_invoke_cache);
2250 free_hash (cache->runtime_invoke_signature_cache);
2251
2252 free_hash (cache->delegate_abstract_invoke_cache);
2253
2254 free_hash (cache->runtime_invoke_method_cache);
2255 free_hash (cache->managed_wrapper_cache);
2256
2257 free_hash (cache->native_wrapper_cache);
2258 free_hash (cache->native_wrapper_aot_cache);
2259 free_hash (cache->native_wrapper_check_cache);
2260 free_hash (cache->native_wrapper_aot_check_cache);
2261
2262 free_hash (cache->native_func_wrapper_aot_cache);
2263 free_hash (cache->remoting_invoke_cache);
2264 free_hash (cache->synchronized_cache);
2265 free_hash (cache->unbox_wrapper_cache);
2266 free_hash (cache->cominterop_invoke_cache);
2267 free_hash (cache->cominterop_wrapper_cache);
2268 free_hash (cache->thunk_invoke_cache);
2269 }
2270
2271 static void
2272 mono_image_close_except_pools_all (MonoImage**images, int image_count)
2273 {
2274 for (int i = 0; i < image_count; ++i) {
2275 if (images [i]) {
2276 if (!mono_image_close_except_pools (images [i]))
2277 images [i] = NULL;
2278 }
2279 }
2280 }
2281
2282 /*
2283 * Returns whether mono_image_close_finish() must be called as well.
2284 * We must unload images in two steps because clearing the domain in
2285 * SGen requires the class metadata to be intact, but we need to free
2286 * the mono_g_hash_tables in case a collection occurs during domain
2287 * unloading and the roots would trip up the GC.
2288 */
2289 gboolean
2290 mono_image_close_except_pools (MonoImage *image)
2291 {
2292 MonoImage *image2;
2293 GHashTable *loaded_images, *loaded_images_by_name;
2294 int i;
2295
2296 g_return_val_if_fail (image != NULL, FALSE);
2297
2298 /*
2299 * Atomically decrement the refcount and remove ourselves from the hash tables, so
2300 * register_image () can't grab an image which is being closed.
2301 */
2302 mono_images_lock ();
2303
2304 if (mono_atomic_dec_i32 (&image->ref_count) > 0) {
2305 mono_images_unlock ();
2306 return FALSE;
2307 }
2308
2309 loaded_images = get_loaded_images_hash (image->ref_only);
2310 loaded_images_by_name = get_loaded_images_by_name_hash (image->ref_only);
2311 image2 = (MonoImage *)g_hash_table_lookup (loaded_images, image->name);
2312 if (image == image2) {
2313 /* This is not true if we are called from mono_image_open () */
2314 g_hash_table_remove (loaded_images, image->name);
2315 }
2316 if (image->assembly_name && (g_hash_table_lookup (loaded_images_by_name, image->assembly_name) == image))
2317 g_hash_table_remove (loaded_images_by_name, (char *) image->assembly_name);
2318
2319 mono_images_unlock ();
2320
2321 #ifdef HOST_WIN32
2322 if (m_image_is_module_handle (image) && m_image_has_entry_point (image)) {
2323 mono_images_lock ();
2324 if (image->ref_count == 0) {
2325 /* Image will be closed by _CorDllMain. */
2326 FreeLibrary ((HMODULE) image->raw_data);
2327 mono_images_unlock ();
2328 return FALSE;
2329 }
2330 mono_images_unlock ();
2331 }
2332 #endif
2333
2334 MONO_PROFILER_RAISE (image_unloading, (image));
2335
2336 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
2337
2338 mono_image_invoke_unload_hook (image);
2339
2340 mono_metadata_clean_for_image (image);
2341
2342 /*
2343 * The caches inside a MonoImage might refer to metadata which is stored in referenced
2344 * assemblies, so we can't release these references in mono_assembly_close () since the
2345 * MonoImage might outlive its associated MonoAssembly.
2346 */
2347 if (image->references && !image_is_dynamic (image)) {
2348 for (i = 0; i < image->nreferences; i++) {
2349 if (image->references [i] && image->references [i] != REFERENCE_MISSING) {
2350 if (!mono_assembly_close_except_image_pools (image->references [i]))
2351 image->references [i] = NULL;
2352 }
2353 }
2354 } else {
2355 if (image->references) {
2356 g_free (image->references);
2357 image->references = NULL;
2358 }
2359 }
2360
2361 /* a MonoDynamicImage doesn't have any storage */
2362 g_assert (image_is_dynamic (image) || image->storage != NULL);
2363
2364 if (image->storage && m_image_is_raw_data_allocated (image)) {
2365 /* FIXME: do we need this? (image is disposed anyway) */
2366 /* image->raw_metadata and cli_sections might lie inside image->raw_data */
2367 MonoCLIImageInfo *ii = image->image_info;
2368
2369 if ((image->raw_metadata > image->raw_data) &&
2370 (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
2371 image->raw_metadata = NULL;
2372
2373 for (i = 0; i < ii->cli_section_count; i++)
2374 if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
2375 ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
2376 ii->cli_sections [i] = NULL;
2377
2378 }
2379
2380 if (image->storage)
2381 mono_image_storage_close (image->storage);
2382
2383 if (debug_assembly_unload) {
2384 char *old_name = image->name;
2385 image->name = g_strdup_printf ("%s - UNLOADED", old_name);
2386 g_free (old_name);
2387 } else {
2388 g_free (image->name);
2389 g_free (image->filename);
2390 g_free (image->guid);
2391 g_free (image->version);
2392 }
2393
2394 if (image->method_cache)
2395 g_hash_table_destroy (image->method_cache);
2396 if (image->methodref_cache)
2397 g_hash_table_destroy (image->methodref_cache);
2398 mono_internal_hash_table_destroy (&image->class_cache);
2399 mono_conc_hashtable_destroy (image->field_cache);
2400 if (image->array_cache) {
2401 g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
2402 g_hash_table_destroy (image->array_cache);
2403 }
2404 if (image->szarray_cache)
2405 g_hash_table_destroy (image->szarray_cache);
2406 if (image->ptr_cache)
2407 g_hash_table_destroy (image->ptr_cache);
2408 if (image->name_cache) {
2409 g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
2410 g_hash_table_destroy (image->name_cache);
2411 }
2412
2413 free_hash (image->delegate_bound_static_invoke_cache);
2414 free_hash (image->ldfld_wrapper_cache);
2415 free_hash (image->ldflda_wrapper_cache);
2416 free_hash (image->stfld_wrapper_cache);
2417 free_hash (image->isinst_cache);
2418 free_hash (image->castclass_cache);
2419 free_hash (image->icall_wrapper_cache);
2420 free_hash (image->proxy_isinst_cache);
2421 if (image->var_gparam_cache)
2422 mono_conc_hashtable_destroy (image->var_gparam_cache);
2423 if (image->mvar_gparam_cache)
2424 mono_conc_hashtable_destroy (image->mvar_gparam_cache);
2425 free_hash (image->wrapper_param_names);
2426 free_hash (image->pinvoke_scopes);
2427 free_hash (image->pinvoke_scope_filenames);
2428 free_hash (image->native_func_wrapper_cache);
2429 mono_conc_hashtable_destroy (image->typespec_cache);
2430 free_hash (image->weak_field_indexes);
2431
2432 mono_wrapper_caches_free (&image->wrapper_caches);
2433
2434 for (i = 0; i < image->gshared_types_len; ++i)
2435 free_hash (image->gshared_types [i]);
2436 g_free (image->gshared_types);
2437
2438 /* The ownership of signatures is not well defined */
2439 g_hash_table_destroy (image->memberref_signatures);
2440 g_hash_table_destroy (image->method_signatures);
2441
2442 if (image->rgctx_template_hash)
2443 g_hash_table_destroy (image->rgctx_template_hash);
2444
2445 if (image->property_hash)
2446 mono_property_hash_destroy (image->property_hash);
2447
2448 /*
2449 reflection_info_unregister_classes is only required by dynamic images, which will not be properly
2450 cleared during shutdown as we don't perform regular appdomain unload for the root one.
2451 */
2452 g_assert (!image->reflection_info_unregister_classes || mono_runtime_is_shutting_down ());
2453 image->reflection_info_unregister_classes = NULL;
2454
2455 if (image->interface_bitset) {
2456 mono_unload_interface_ids (image->interface_bitset);
2457 mono_bitset_free (image->interface_bitset);
2458 }
2459 if (image->image_info){
2460 MonoCLIImageInfo *ii = image->image_info;
2461
2462 g_free (ii->cli_section_tables);
2463 g_free (ii->cli_sections);
2464 g_free (image->image_info);
2465 }
2466
2467 mono_image_close_except_pools_all (image->files, image->file_count);
2468 mono_image_close_except_pools_all (image->modules, image->module_count);
2469 g_free (image->modules_loaded);
2470
2471 mono_os_mutex_destroy (&image->szarray_cache_lock);
2472 mono_os_mutex_destroy (&image->lock);
2473
2474 /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
2475 if (image_is_dynamic (image)) {
2476 /* Dynamic images are GC_MALLOCed */
2477 g_free ((char*)image->module_name);
2478 mono_dynamic_image_free ((MonoDynamicImage*)image);
2479 }
2480
2481 MONO_PROFILER_RAISE (image_unloaded, (image));
2482
2483 return TRUE;
2484 }
2485
2486 static void
2487 mono_image_close_all (MonoImage**images, int image_count)
2488 {
2489 for (int i = 0; i < image_count; ++i) {
2490 if (images [i])
2491 mono_image_close_finish (images [i]);
2492 }
2493 if (images)
2494 g_free (images);
2495 }
2496
2497 void
2498 mono_image_close_finish (MonoImage *image)
2499 {
2500 int i;
2501
2502 if (image->references && !image_is_dynamic (image)) {
2503 for (i = 0; i < image->nreferences; i++) {
2504 if (image->references [i] && image->references [i] != REFERENCE_MISSING)
2505 mono_assembly_close_finish (image->references [i]);
2506 }
2507
2508 g_free (image->references);
2509 image->references = NULL;
2510 }
2511
2512 mono_image_close_all (image->files, image->file_count);
2513 mono_image_close_all (image->modules, image->module_count);
2514
2515 #ifndef DISABLE_PERFCOUNTERS
2516 /* FIXME: use an explicit subtraction method as soon as it's available */
2517 mono_atomic_fetch_add_i32 (&mono_perfcounters->loader_bytes, -1 * mono_mempool_get_allocated (image->mempool));
2518 #endif
2519
2520 if (!image_is_dynamic (image)) {
2521 if (debug_assembly_unload)
2522 mono_mempool_invalidate (image->mempool);
2523 else {
2524 mono_mempool_destroy (image->mempool);
2525 g_free (image);
2526 }
2527 } else {
2528 if (debug_assembly_unload)
2529 mono_mempool_invalidate (image->mempool);
2530 else {
2531 mono_mempool_destroy (image->mempool);
2532 mono_dynamic_image_free_image ((MonoDynamicImage*)image);
2533 }
2534 }
2535 }
2536
2537 /**
2538 * mono_image_close:
2539 * \param image The image file we wish to close
2540 * Closes an image file, deallocates all memory consumed and
2541 * unmaps all possible sections of the file
2542 */
2543 void
2544 mono_image_close (MonoImage *image)
2545 {
2546 if (mono_image_close_except_pools (image))
2547 mono_image_close_finish (image);
2548 }
2549
2550 /**
2551 * mono_image_strerror:
2552 * \param status an code indicating the result from a recent operation
2553 * \returns a string describing the error
2554 */
2555 const char *
2556 mono_image_strerror (MonoImageOpenStatus status)
2557 {
2558 switch (status){
2559 case MONO_IMAGE_OK:
2560 return "success";
2561 case MONO_IMAGE_ERROR_ERRNO:
2562 return strerror (errno);
2563 case MONO_IMAGE_IMAGE_INVALID:
2564 return "File does not contain a valid CIL image";
2565 case MONO_IMAGE_MISSING_ASSEMBLYREF:
2566 return "An assembly was referenced, but could not be found";
2567 }
2568 return "Internal error";
2569 }
2570
2571 static gpointer
2572 mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
2573 guint32 lang_id, gunichar2 *name,
2574 MonoPEResourceDirEntry *entry,
2575 MonoPEResourceDir *root, guint32 level)
2576 {
2577 gboolean is_string, is_dir;
2578 guint32 name_offset, dir_offset;
2579
2580 /* Level 0 holds a directory entry for each type of resource
2581 * (identified by ID or name).
2582 *
2583 * Level 1 holds a directory entry for each named resource
2584 * item, and each "anonymous" item of a particular type of
2585 * resource.
2586 *
2587 * Level 2 holds a directory entry for each language pointing to
2588 * the actual data.
2589 */
2590 is_string = MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING (*entry);
2591 name_offset = MONO_PE_RES_DIR_ENTRY_NAME_OFFSET (*entry);
2592
2593 is_dir = MONO_PE_RES_DIR_ENTRY_IS_DIR (*entry);
2594 dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
2595
2596 if(level==0) {
2597 if (is_string)
2598 return NULL;
2599 } else if (level==1) {
2600 if (res_id != name_offset)
2601 return NULL;
2602 #if 0
2603 if(name!=NULL &&
2604 is_string==TRUE && name!=lookup (name_offset)) {
2605 return(NULL);
2606 }
2607 #endif
2608 } else if (level==2) {
2609 if (is_string || (lang_id != 0 && name_offset != lang_id))
2610 return NULL;
2611 } else {
2612 g_assert_not_reached ();
2613 }
2614
2615 if (is_dir) {
2616 MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+dir_offset);
2617 MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
2618 guint32 entries, i;
2619
2620 entries = GUINT16_FROM_LE (res_dir->res_named_entries) + GUINT16_FROM_LE (res_dir->res_id_entries);
2621
2622 for(i=0; i<entries; i++) {
2623 MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
2624 gpointer ret;
2625
2626 ret=mono_image_walk_resource_tree (info, res_id,
2627 lang_id, name,
2628 sub_entry, root,
2629 level+1);
2630 if(ret!=NULL) {
2631 return(ret);
2632 }
2633 }
2634
2635 return(NULL);
2636 } else {
2637 MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+dir_offset);
2638 MonoPEResourceDataEntry *res;
2639
2640 res = g_new0 (MonoPEResourceDataEntry, 1);
2641
2642 res->rde_data_offset = GUINT32_TO_LE (data_entry->rde_data_offset);
2643 res->rde_size = GUINT32_TO_LE (data_entry->rde_size);
2644 res->rde_codepage = GUINT32_TO_LE (data_entry->rde_codepage);
2645 res->rde_reserved = GUINT32_TO_LE (data_entry->rde_reserved);
2646
2647 return (res);
2648 }
2649 }
2650
2651 /**
2652 * mono_image_lookup_resource:
2653 * \param image the image to look up the resource in
2654 * \param res_id A \c MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
2655 * \param lang_id The language id.
2656 * \param name the resource name to lookup.
2657 * \returns NULL if not found, otherwise a pointer to the in-memory representation
2658 * of the given resource. The caller should free it using \c g_free when no longer
2659 * needed.
2660 */
2661 gpointer
2662 mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
2663 {
2664 MonoCLIImageInfo *info;
2665 MonoDotNetHeader *header;
2666 MonoPEDatadir *datadir;
2667 MonoPEDirEntry *rsrc;
2668 MonoPEResourceDir *resource_dir;
2669 MonoPEResourceDirEntry *res_entries;
2670 guint32 entries, i;
2671
2672 if(image==NULL) {
2673 return(NULL);
2674 }
2675
2676 mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
2677
2678 info = (MonoCLIImageInfo *)image->image_info;
2679 if(info==NULL) {
2680 return(NULL);
2681 }
2682
2683 header=&info->cli_header;
2684 if(header==NULL) {
2685 return(NULL);
2686 }
2687
2688 datadir=&header->datadir;
2689 if(datadir==NULL) {
2690 return(NULL);
2691 }
2692
2693 rsrc=&datadir->pe_resource_table;
2694 if(rsrc==NULL) {
2695 return(NULL);
2696 }
2697
2698 resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
2699 if(resource_dir==NULL) {
2700 return(NULL);
2701 }
2702
2703 entries = GUINT16_FROM_LE (resource_dir->res_named_entries) + GUINT16_FROM_LE (resource_dir->res_id_entries);
2704 res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
2705
2706 for(i=0; i<entries; i++) {
2707 MonoPEResourceDirEntry *entry=&res_entries[i];
2708 gpointer ret;
2709
2710 ret=mono_image_walk_resource_tree (info, res_id, lang_id,
2711 name, entry, resource_dir,
2712 0);
2713 if(ret!=NULL) {
2714 return(ret);
2715 }
2716 }
2717
2718 return(NULL);
2719 }
2720
2721 /**
2722 * mono_image_get_entry_point:
2723 * \param image the image where the entry point will be looked up.
2724 * Use this routine to determine the metadata token for method that
2725 * has been flagged as the entry point.
2726 * \returns the token for the entry point method in the image
2727 */
2728 guint32
2729 mono_image_get_entry_point (MonoImage *image)
2730 {
2731 return image->image_info->cli_cli_header.ch_entry_point;
2732 }
2733
2734 /**
2735 * mono_image_get_resource:
2736 * \param image the image where the resource will be looked up.
2737 * \param offset The offset to add to the resource
2738 * \param size a pointer to an int where the size of the resource will be stored
2739 *
2740 * This is a low-level routine that fetches a resource from the
2741 * metadata that starts at a given \p offset. The \p size parameter is
2742 * filled with the data field as encoded in the metadata.
2743 *
2744 * \returns the pointer to the resource whose offset is \p offset.
2745 */
2746 const char*
2747 mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
2748 {
2749 MonoCLIImageInfo *iinfo = image->image_info;
2750 MonoCLIHeader *ch = &iinfo->cli_cli_header;
2751 const char* data;
2752
2753 if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
2754 return NULL;
2755
2756 data = mono_image_rva_map (image, ch->ch_resources.rva);
2757 if (!data)
2758 return NULL;
2759 data += offset;
2760 if (size)
2761 *size = read32 (data);
2762 data += 4;
2763 return data;
2764 }
2765
2766 // Returning NULL with no error set will be interpeted as "not found"
2767 MonoImage*
2768 mono_image_load_file_for_image_checked (MonoImage *image, int fileidx, MonoError *error)
2769 {
2770 char *base_dir, *name;
2771 MonoImage *res;
2772 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
2773 const char *fname;
2774 guint32 fname_id;
2775
2776 error_init (error);
2777
2778 if (fileidx < 1 || fileidx > t->rows)
2779 return NULL;
2780
2781 mono_image_lock (image);
2782 if (image->files && image->files [fileidx - 1]) {
2783 mono_image_unlock (image);
2784 return image->files [fileidx - 1];
2785 }
2786 mono_image_unlock (image);
2787
2788 fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
2789 fname = mono_metadata_string_heap (image, fname_id);
2790 base_dir = g_path_get_dirname (image->name);
2791 name = g_build_filename (base_dir, fname, NULL);
2792 res = mono_image_open (name, NULL);
2793 if (!res)
2794 goto done;
2795
2796 mono_image_lock (image);
2797 if (image->files && image->files [fileidx - 1]) {
2798 MonoImage *old = res;
2799 res = image->files [fileidx - 1];
2800 mono_image_unlock (image);
2801 mono_image_close (old);
2802 } else {
2803 int i;
2804 /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
2805 if (!assign_assembly_parent_for_netmodule (res, image, error)) {
2806 mono_image_unlock (image);
2807 mono_image_close (res);
2808 return NULL;
2809 }
2810
2811 for (i = 0; i < res->module_count; ++i) {
2812 if (res->modules [i] && !res->modules [i]->assembly)
2813 res->modules [i]->assembly = image->assembly;
2814 }
2815
2816 if (!image->files) {
2817 image->files = g_new0 (MonoImage*, t->rows);
2818 image->file_count = t->rows;
2819 }
2820 image->files [fileidx - 1] = res;
2821 mono_image_unlock (image);
2822 /* vtable fixup can't happen with the image lock held */
2823 #ifdef HOST_WIN32
2824 if (m_image_is_module_handle (res))
2825 mono_image_fixup_vtable (res);
2826 #endif
2827 }
2828
2829 done:
2830 g_free (name);
2831 g_free (base_dir);
2832 return res;
2833 }
2834
2835 /**
2836 * mono_image_load_file_for_image:
2837 */
2838 MonoImage*
2839 mono_image_load_file_for_image (MonoImage *image, int fileidx)
2840 {
2841 ERROR_DECL (error);
2842 MonoImage *result = mono_image_load_file_for_image_checked (image, fileidx, error);
2843 mono_error_assert_ok (error);
2844 return result;
2845 }
2846
2847 /**
2848 * mono_image_get_strong_name:
2849 * \param image a MonoImage
2850 * \param size a \c guint32 pointer, or NULL.
2851 *
2852 * If the image has a strong name, and \p size is not NULL, the value
2853 * pointed to by size will have the size of the strong name.
2854 *
2855 * \returns NULL if the image does not have a strong name, or a
2856 * pointer to the public key.
2857 */
2858 const char*
2859 mono_image_get_strong_name (MonoImage *image, guint32 *size)
2860 {
2861 MonoCLIImageInfo *iinfo = image->image_info;
2862 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2863 const char* data;
2864
2865 if (!de->size || !de->rva)
2866 return NULL;
2867 data = mono_image_rva_map (image, de->rva);
2868 if (!data)
2869 return NULL;
2870 if (size)
2871 *size = de->size;
2872 return data;
2873 }
2874
2875 /**
2876 * mono_image_strong_name_position:
2877 * \param image a \c MonoImage
2878 * \param size a \c guint32 pointer, or NULL.
2879 *
2880 * If the image has a strong name, and \p size is not NULL, the value
2881 * pointed to by size will have the size of the strong name.
2882 *
2883 * \returns the position within the image file where the strong name
2884 * is stored.
2885 */
2886 guint32
2887 mono_image_strong_name_position (MonoImage *image, guint32 *size)
2888 {
2889 MonoCLIImageInfo *iinfo = image->image_info;
2890 MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
2891 guint32 pos;
2892
2893 if (size)
2894 *size = de->size;
2895 if (!de->size || !de->rva)
2896 return 0;
2897 pos = mono_cli_rva_image_map (image, de->rva);
2898 return pos == INVALID_ADDRESS ? 0 : pos;
2899 }
2900
2901 /**
2902 * mono_image_get_public_key:
2903 * \param image a \c MonoImage
2904 * \param size a \c guint32 pointer, or NULL.
2905 *
2906 * This is used to obtain the public key in the \p image.
2907 *
2908 * If the image has a public key, and \p size is not NULL, the value
2909 * pointed to by size will have the size of the public key.
2910 *
2911 * \returns NULL if the image does not have a public key, or a pointer
2912 * to the public key.
2913 */
2914 const char*
2915 mono_image_get_public_key (MonoImage *image, guint32 *size)
2916 {
2917 const char *pubkey;
2918 guint32 len, tok;
2919
2920 if (image_is_dynamic (image)) {
2921 if (size)
2922 *size = ((MonoDynamicImage*)image)->public_key_len;
2923 return (char*)((MonoDynamicImage*)image)->public_key;
2924 }
2925 if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
2926 return NULL;
2927 tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
2928 if (!tok)
2929 return NULL;
2930 pubkey = mono_metadata_blob_heap (image, tok);
2931 len = mono_metadata_decode_blob_size (pubkey, &pubkey);
2932 if (size)
2933 *size = len;
2934 return pubkey;
2935 }
2936
2937 /**
2938 * mono_image_get_name:
2939 * \param name a \c MonoImage
2940 * \returns the name of the assembly.
2941 */
2942 const char*
2943 mono_image_get_name (MonoImage *image)
2944 {
2945 return image->assembly_name;
2946 }
2947
2948 /**
2949 * mono_image_get_filename:
2950 * \param image a \c MonoImage
2951 * Used to get the filename that hold the actual \c MonoImage
2952 * \returns the filename.
2953 */
2954 const char*
2955 mono_image_get_filename (MonoImage *image)
2956 {
2957 return image->name;
2958 }
2959
2960 /**
2961 * mono_image_get_guid:
2962 */
2963 const char*
2964 mono_image_get_guid (MonoImage *image)
2965 {
2966 return image->guid;
2967 }
2968
2969 /**
2970 * mono_image_get_table_info:
2971 */
2972 const MonoTableInfo*
2973 mono_image_get_table_info (MonoImage *image, int table_id)
2974 {
2975 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2976 return NULL;
2977 return &image->tables [table_id];
2978 }
2979
2980 /**
2981 * mono_image_get_table_rows:
2982 */
2983 int
2984 mono_image_get_table_rows (MonoImage *image, int table_id)
2985 {
2986 if (table_id < 0 || table_id >= MONO_TABLE_NUM)
2987 return 0;
2988 return image->tables [table_id].rows;
2989 }
2990
2991 /**
2992 * mono_table_info_get_rows:
2993 */
2994 int
2995 mono_table_info_get_rows (const MonoTableInfo *table)
2996 {
2997 return table->rows;
2998 }
2999
3000 /**
3001 * mono_image_get_assembly:
3002 * \param image the \c MonoImage .
3003 * Use this routine to get the assembly that owns this image.
3004 * \returns the assembly that holds this image.
3005 */
3006 MonoAssembly*
3007 mono_image_get_assembly (MonoImage *image)
3008 {
3009 return image->assembly;
3010 }
3011
3012 /**
3013 * mono_image_is_dynamic:
3014 * \param image the \c MonoImage
3015 *
3016 * Determines if the given image was created dynamically through the
3017 * \c System.Reflection.Emit API
3018 * \returns TRUE if the image was created dynamically, FALSE if not.
3019 */
3020 gboolean
3021 mono_image_is_dynamic (MonoImage *image)
3022 {
3023 return image_is_dynamic (image);
3024 }
3025
3026 /**
3027 * mono_image_has_authenticode_entry:
3028 * \param image the \c MonoImage
3029 * Use this routine to determine if the image has a Authenticode
3030 * Certificate Table.
3031 * \returns TRUE if the image contains an authenticode entry in the PE
3032 * directory.
3033 */
3034 gboolean
3035 mono_image_has_authenticode_entry (MonoImage *image)
3036 {
3037 MonoCLIImageInfo *iinfo = image->image_info;
3038 MonoDotNetHeader *header = &iinfo->cli_header;
3039 if (!header)
3040 return FALSE;
3041 MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
3042 // the Authenticode "pre" (non ASN.1) header is 8 bytes long
3043 return ((de->rva != 0) && (de->size > 8));
3044 }
3045
3046 gpointer
3047 mono_image_alloc (MonoImage *image, guint size)
3048 {
3049 gpointer res;
3050
3051 #ifndef DISABLE_PERFCOUNTERS
3052 mono_atomic_fetch_add_i32 (&mono_perfcounters->loader_bytes, size);
3053 #endif
3054 mono_image_lock (image);
3055 res = mono_mempool_alloc (image->mempool, size);
3056 mono_image_unlock (image);
3057
3058 return res;
3059 }
3060
3061 gpointer
3062 mono_image_alloc0 (MonoImage *image, guint size)
3063 {
3064 gpointer res;
3065
3066 #ifndef DISABLE_PERFCOUNTERS
3067 mono_atomic_fetch_add_i32 (&mono_perfcounters->loader_bytes, size);
3068 #endif
3069 mono_image_lock (image);
3070 res = mono_mempool_alloc0 (image->mempool, size);
3071 mono_image_unlock (image);
3072
3073 return res;
3074 }
3075
3076 char*
3077 mono_image_strdup (MonoImage *image, const char *s)
3078 {
3079 char *res;
3080
3081 #ifndef DISABLE_PERFCOUNTERS
3082 mono_atomic_fetch_add_i32 (&mono_perfcounters->loader_bytes, (gint32)strlen (s));
3083 #endif
3084 mono_image_lock (image);
3085 res = mono_mempool_strdup (image->mempool, s);
3086 mono_image_unlock (image);
3087
3088 return res;
3089 }
3090
3091 char*
3092 mono_image_strdup_vprintf (MonoImage *image, const char *format, va_list args)
3093 {
3094 char *buf;
3095 mono_image_lock (image);
3096 buf = mono_mempool_strdup_vprintf (image->mempool, format, args);
3097 mono_image_unlock (image);
3098 #ifndef DISABLE_PERFCOUNTERS
3099 mono_atomic_fetch_add_i32 (&mono_perfcounters->loader_bytes, (gint32)strlen (buf));
3100 #endif
3101 return buf;
3102 }
3103
3104 char*
3105 mono_image_strdup_printf (MonoImage *image, const char *format, ...)
3106 {
3107 char *buf;
3108 va_list args;
3109
3110 va_start (args, format);
3111 buf = mono_image_strdup_vprintf (image, format, args);
3112 va_end (args);
3113 return buf;
3114 }
3115
3116 GList*
3117 mono_g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
3118 {
3119 GList *new_list;
3120
3121 new_list = (GList *)mono_image_alloc (image, sizeof (GList));
3122 new_list->data = data;
3123 new_list->prev = list ? list->prev : NULL;
3124 new_list->next = list;
3125
3126 if (new_list->prev)
3127 new_list->prev->next = new_list;
3128 if (list)
3129 list->prev = new_list;
3130
3131 return new_list;
3132 }
3133
3134 GSList*
3135 mono_g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
3136 {
3137 GSList *new_list;
3138
3139 new_list = (GSList *)mono_image_alloc (image, sizeof (GSList));
3140 new_list->data = data;
3141 new_list->next = NULL;
3142
3143 return g_slist_concat (list, new_list);
3144 }
3145
3146 void
3147 mono_image_lock (MonoImage *image)
3148 {
3149 mono_locks_os_acquire (&image->lock, ImageDataLock);
3150 }
3151
3152 void
3153 mono_image_unlock (MonoImage *image)
3154 {
3155 mono_locks_os_release (&image->lock, ImageDataLock);
3156 }
3157
3158
3159 /**
3160 * mono_image_property_lookup:
3161 * Lookup a property on \p image . Used to store very rare fields of \c MonoClass and \c MonoMethod .
3162 *
3163 * LOCKING: Takes the image lock
3164 */
3165 gpointer
3166 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
3167 {
3168 gpointer res;
3169
3170 mono_image_lock (image);
3171 res = mono_property_hash_lookup (image->property_hash, subject, property);
3172 mono_image_unlock (image);
3173
3174 return res;
3175 }
3176
3177 /**
3178 * mono_image_property_insert:
3179 * Insert a new property \p property with value \p value on \p subject in \p
3180 * image. Used to store very rare fields of \c MonoClass and \c MonoMethod.
3181 *
3182 * LOCKING: Takes the image lock
3183 */
3184 void
3185 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
3186 {
3187 CHECKED_METADATA_STORE_LOCAL (image->mempool, value);
3188 mono_image_lock (image);
3189 mono_property_hash_insert (image->property_hash, subject, property, value);
3190 mono_image_unlock (image);
3191 }
3192
3193 /**
3194 * mono_image_property_remove:
3195 * Remove all properties associated with \p subject in \p image. Used to store very rare fields of \c MonoClass and \c MonoMethod .
3196 *
3197 * LOCKING: Takes the image lock
3198 */
3199 void
3200 mono_image_property_remove (MonoImage *image, gpointer subject)
3201 {
3202 mono_image_lock (image);
3203 mono_property_hash_remove_object (image->property_hash, subject);
3204 mono_image_unlock (image);
3205 }
3206
3207 void
3208 mono_image_append_class_to_reflection_info_set (MonoClass *klass)
3209 {
3210 MonoImage *image = m_class_get_image (klass);
3211 g_assert (image_is_dynamic (image));
3212 mono_image_lock (image);
3213 image->reflection_info_unregister_classes = g_slist_prepend_mempool (image->mempool, image->reflection_info_unregister_classes, klass);
3214 mono_image_unlock (image);
3215 }
3216
3217 // This is support for the mempool reference tracking feature in checked-build, but lives in image.c due to use of static variables of this file.
3218
3219 /**
3220 * mono_find_image_owner:
3221 *
3222 * Find the image, if any, which a given pointer is located in the memory of.
3223 */
3224 MonoImage *
3225 mono_find_image_owner (void *ptr)
3226 {
3227 mono_images_lock ();
3228
3229 MonoImage *owner = NULL;
3230
3231 // Iterate over both by-path image hashes
3232 const int hash_candidates[] = {IMAGES_HASH_PATH, IMAGES_HASH_PATH_REFONLY};
3233 int hash_idx;
3234 for (hash_idx = 0; !owner && hash_idx < G_N_ELEMENTS (hash_candidates); hash_idx++)
3235 {
3236 GHashTable *target = loaded_images_hashes [hash_candidates [hash_idx]];
3237 GHashTableIter iter;
3238 MonoImage *image;
3239
3240 // Iterate over images within a hash
3241 g_hash_table_iter_init (&iter, target);
3242 while (!owner && g_hash_table_iter_next(&iter, NULL, (gpointer *)&image))
3243 {
3244 mono_image_lock (image);
3245 if (mono_mempool_contains_addr (image->mempool, ptr))
3246 owner = image;
3247 mono_image_unlock (image);
3248 }
3249 }
3250
3251 mono_images_unlock ();
3252
3253 return owner;
3254 }
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