2 * assembly.c: Routines for loading assemblies.
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001 Ximian, Inc. http://www.ximian.com
19 #include "rawbuffer.h"
20 #include <mono/metadata/loader.h>
21 #include <mono/metadata/tabledefs.h>
22 #include <mono/metadata/metadata-internals.h>
23 #include <mono/metadata/class-internals.h>
24 #include <mono/metadata/domain-internals.h>
25 #include <mono/metadata/mono-endian.h>
26 #include <mono/io-layer/io-layer.h>
27 #include <mono/utils/mono-uri.h>
28 #include <mono/metadata/mono-config.h>
29 #include <mono/utils/mono-digest.h>
30 #include <mono/utils/mono-logger.h>
31 #include <mono/metadata/reflection.h>
33 #ifndef PLATFORM_WIN32
34 #include <sys/types.h>
39 /* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
41 const char* assembly_name;
42 guint8 version_set_index;
45 /* the default search path is empty, the first slot is replaced with the computed value */
52 /* Contains the list of directories to be searched for assemblies (MONO_PATH) */
53 static char **assemblies_path = NULL;
55 /* Contains the list of directories that point to auxiliary GACs */
56 static char **extra_gac_paths = NULL;
58 /* The list of system assemblies what will be remapped to the running
59 * runtime version. WARNING: this list must be sorted.
61 static const AssemblyVersionMap framework_assemblies [] = {
63 {"Commons.Xml.Relaxng", 0},
70 {"Microsoft.VisualBasic", 1},
71 {"Microsoft.VisualC", 1},
73 {"Mono.CompilerServices.SymbolWriter", 0},
75 {"Mono.Data.SqliteClient", 0},
76 {"Mono.Data.SybaseClient", 0},
78 {"Mono.Data.TdsClient", 0},
79 {"Mono.GetOptions", 0},
83 {"Mono.Security.Win32", 0},
85 {"Novell.Directory.Ldap", 0},
89 {"System.Configuration.Install", 0},
91 {"System.Data.OracleClient", 0},
92 {"System.Data.SqlXml", 0},
94 {"System.DirectoryServices", 0},
95 {"System.Drawing", 0},
96 {"System.Drawing.Design", 0},
97 {"System.EnterpriseServices", 0},
98 {"System.Management", 0},
99 {"System.Messaging", 0},
100 {"System.Runtime.Remoting", 0},
101 {"System.Runtime.Serialization.Formatters.Soap", 0},
102 {"System.Security", 0},
103 {"System.ServiceProcess", 0},
105 {"System.Web.Mobile", 0},
106 {"System.Web.Services", 0},
107 {"System.Windows.Forms", 0},
113 * keeps track of loaded assemblies
115 static GList *loaded_assemblies = NULL;
116 static MonoAssembly *corlib;
118 /* This protects loaded_assemblies and image->references */
119 #define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
120 #define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
121 static CRITICAL_SECTION assemblies_mutex;
123 /* A hastable of thread->assembly list mappings */
124 static GHashTable *assemblies_loading;
126 /* A hashtable of reflection only load thread->assemblies mappings */
127 static GHashTable *assemblies_refonly_loading;
129 /* If defined, points to the bundled assembly information */
130 const MonoBundledAssembly **bundles;
132 /* Loaded assembly binding info */
133 static GSList *loaded_assembly_bindings = NULL;
136 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
139 encode_public_tok (const guchar *token, gint32 len)
141 const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
145 res = g_malloc (len * 2 + 1);
146 for (i = 0; i < len; i++) {
147 res [i * 2] = allowed [token [i] >> 4];
148 res [i * 2 + 1] = allowed [token [i] & 0xF];
155 check_path_env (void)
160 path = g_getenv ("MONO_PATH");
164 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
166 g_strfreev (assemblies_path);
167 assemblies_path = splitted;
168 if (g_getenv ("MONO_DEBUG") == NULL)
172 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
173 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
180 check_extra_gac_path_env (void) {
184 path = g_getenv ("MONO_GAC_PREFIX");
188 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
190 g_strfreev (extra_gac_paths);
191 extra_gac_paths = splitted;
192 if (g_getenv ("MONO_DEBUG") == NULL)
196 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
197 g_warning ("'%s' in MONO_GAC_PATH doesn't exist or has wrong permissions.", *splitted);
204 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
206 if (strcmp (info->name, aname->name))
209 if (info->major != aname->major || info->minor != aname->minor)
212 if ((info->culture != NULL) != (aname->culture != NULL))
215 if (info->culture && strcmp (info->culture, aname->culture))
218 if (strcmp ((const char *)info->public_key_token, (const char *)aname->public_key_token))
225 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
228 g_free (info->culture);
232 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
235 guint32 cols [MONO_MANIFEST_SIZE];
236 const gchar *filename;
237 gchar *subpath, *fullpath;
239 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
240 /* MS Impl. accepts policy assemblies with more than
241 * one manifest resource, and only takes the first one */
243 binding_info->is_valid = FALSE;
247 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
248 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
249 binding_info->is_valid = FALSE;
253 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
254 g_assert (filename != NULL);
256 subpath = g_path_get_dirname (image->name);
257 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
258 mono_config_parse_publisher_policy (fullpath, binding_info);
262 /* Define the optional elements/attributes before checking */
263 if (!binding_info->culture)
264 binding_info->culture = g_strdup ("");
266 /* Check that the most important elements/attributes exist */
267 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
268 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
269 mono_assembly_binding_info_free (binding_info);
270 binding_info->is_valid = FALSE;
274 binding_info->is_valid = TRUE;
278 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
280 if (v->major > aname->major)
282 else if (v->major < aname->major)
285 if (v->minor > aname->minor)
287 else if (v->minor < aname->minor)
290 if (v->build > aname->build)
292 else if (v->build < aname->build)
295 if (v->revision > aname->revision)
297 else if (v->revision < aname->revision)
304 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
309 /* If has_old_version_top doesn't exist, we don't have an interval */
310 if (!info->has_old_version_top) {
311 if (compare_versions (&info->old_version_bottom, name) == 0)
317 /* Check that the version defined by name is valid for the interval */
318 if (compare_versions (&info->old_version_top, name) < 0)
321 /* We should be greater or equal than the small version */
322 if (compare_versions (&info->old_version_bottom, name) > 0)
329 * mono_assembly_names_equal:
331 * @r: second assembly.
333 * Compares two MonoAssemblyNames and returns whether they are equal.
334 * This compares the names, the cultures, the release version and their
337 * Returns: TRUE if both assembly names are equal.
340 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
342 if (!l->name || !r->name)
345 if (strcmp (l->name, r->name))
348 if (l->culture && r->culture && strcmp (l->culture, r->culture))
351 if (l->major != r->major || l->minor != r->minor ||
352 l->build != r->build || l->revision != r->revision)
353 if (! ((l->major == 0 && l->minor == 0 && l->build == 0 && l->revision == 0) || (r->major == 0 && r->minor == 0 && r->build == 0 && r->revision == 0)))
356 if (!l->public_key_token [0] || !r->public_key_token [0])
359 if (strcmp ((char*)l->public_key_token, (char*)r->public_key_token))
366 search_loaded (MonoAssemblyName* aname, gboolean refonly)
372 ass = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
377 * The assembly might be under load by this thread. In this case, it is
378 * safe to return an incomplete instance to prevent loops.
380 loading = g_hash_table_lookup (refonly ? assemblies_refonly_loading : assemblies_loading, (gpointer)GetCurrentThreadId ());
381 for (tmp = loading; tmp; tmp = tmp->next) {
383 if (!mono_assembly_names_equal (aname, &ass->aname))
392 static MonoAssembly *
393 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
397 MonoAssembly *result;
399 for (i = 0; search_path [i]; ++i) {
400 fullpath = g_build_filename (search_path [i], basename, NULL);
401 result = mono_assembly_open_full (fullpath, status, refonly);
410 * mono_assembly_setrootdir:
411 * @root_dir: The pathname of the root directory where we will locate assemblies
413 * This routine sets the internal default root directory for looking up
414 * assemblies. This is used by Windows installations to compute dynamically
415 * the place where the Mono assemblies are located.
419 mono_assembly_setrootdir (const char *root_dir)
422 * Override the MONO_ASSEMBLIES directory configured at compile time.
424 /* Leak if called more than once */
425 default_path [0] = g_strdup (root_dir);
429 * mono_assembly_getrootdir:
431 * Returns: The internal root directory used for looking up assemblies
433 G_CONST_RETURN gchar *
434 mono_assembly_getrootdir (void)
436 return default_path [0];
441 * @assembly_dir: the base directory for assemblies
442 * @config_dir: the base directory for configuration files
444 * This routine is used internally and by developers embedding
445 * the runtime into their own applications. There are a number
446 * of cases to consider: Mono as a system-installed package that
447 * is available on the location preconfigured or Mono in a relocated
450 * If you are using a system-installed Mono, you can pass NULL
451 * to both parameters. If you are not, you should compute both
452 * directory values and call this routine.
454 * The values for a given PREFIX are:
456 * assembly_dir: PREFIX/lib
457 * config_dir: PREFIX/etc
459 * Notice that embedders that use Mono in a relocated way must
460 * compute the location at runtime, as they will be in control
461 * of where Mono is installed.
464 mono_set_dirs (const char *assembly_dir, const char *config_dir)
466 #if defined (MONO_ASSEMBLIES)
467 if (assembly_dir == NULL)
468 assembly_dir = MONO_ASSEMBLIES;
470 #if defined (MONO_CFG_DIR)
471 if (config_dir == NULL)
472 config_dir = MONO_CFG_DIR;
474 mono_assembly_setrootdir (assembly_dir);
475 mono_set_config_dir (config_dir);
478 #ifndef PLATFORM_WIN32
481 compute_base (char *path)
483 char *p = rindex (path, '/');
487 /* Not a well known Mono executable, we are embedded, cant guess the base */
488 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
492 p = rindex (path, '/');
496 if (strcmp (p, "/bin") != 0)
505 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
512 char *config, *lib, *mono;
516 * Only /usr prefix is treated specially
518 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
523 config = g_build_filename (base, "etc", NULL);
524 lib = g_build_filename (base, "lib", NULL);
525 mono = g_build_filename (lib, "mono/1.0", NULL);
526 if (stat (mono, &buf) == -1)
529 mono_set_dirs (lib, config);
537 #endif /* PLATFORM_WIN32 */
540 #undef GetModuleFileName
541 #define GetModuleFileName ceGetModuleFileNameA
543 DWORD ceGetModuleFileNameA(HMODULE hModule, char* lpFilename, DWORD nSize)
546 wchar_t* wbuff = (wchar_t*)LocalAlloc(LPTR, nSize*2);
547 res = GetModuleFileNameW(hModule, wbuff, nSize);
549 int len = wcslen(wbuff);
550 WideCharToMultiByte(CP_ACP, 0, wbuff, len, lpFilename, len, NULL, NULL);
560 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
561 * this auto-detects the prefix where Mono was installed.
564 mono_set_rootdir (void)
566 #ifdef PLATFORM_WIN32
567 gunichar2 moddir [MAXPATHLEN];
568 gchar *bindir, *installdir, *root, *utf8name, *config;
570 GetModuleFileNameW (NULL, moddir, MAXPATHLEN);
571 utf8name = g_utf16_to_utf8 (moddir, -1, NULL, NULL, NULL);
572 bindir = g_path_get_dirname (utf8name);
573 installdir = g_path_get_dirname (bindir);
574 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
576 config = g_build_filename (root, "..", "etc", NULL);
577 mono_set_dirs (root, config);
590 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
598 /* Solaris 10 style */
599 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
600 s = readlink (str, buf, sizeof (buf)-1);
612 * mono_assemblies_init:
614 * Initialize global variables used by this module.
617 mono_assemblies_init (void)
620 * Initialize our internal paths if we have not been initialized yet.
621 * This happens when embedders use Mono.
623 if (mono_assembly_getrootdir () == NULL)
627 check_extra_gac_path_env ();
629 InitializeCriticalSection (&assemblies_mutex);
631 assemblies_loading = g_hash_table_new (NULL, NULL);
632 assemblies_refonly_loading = g_hash_table_new (NULL, NULL);
636 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
638 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
639 guint32 cols [MONO_ASSEMBLY_SIZE];
644 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
647 aname->hash_value = NULL;
648 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
649 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
650 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
651 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
652 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
653 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
654 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
655 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
656 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
657 gchar* token = g_malloc (8);
661 aname->public_key = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
662 len = mono_metadata_decode_blob_size (aname->public_key, (const char**)&aname->public_key);
664 mono_digest_get_public_token (token, aname->public_key, len);
665 encoded = encode_public_tok (token, 8);
666 g_strlcpy (aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
672 aname->public_key = NULL;
673 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
676 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
677 aname->public_key = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
680 aname->public_key = 0;
686 * mono_stringify_assembly_name:
688 * Convert @aname into its string format. The returned string is dynamically
689 * allocated and should be freed by the caller.
692 mono_stringify_assembly_name (MonoAssemblyName *aname)
694 return g_strdup_printf (
695 "%s, Version=%d.%d.%d.%d, Culture=%s%s%s",
697 aname->major, aname->minor, aname->build, aname->revision,
698 aname->culture && *aname->culture? aname->culture: "neutral",
699 aname->public_key_token [0] ? ", PublicKeyToken=" : "",
700 aname->public_key_token [0] ? (char *)aname->public_key_token : "");
704 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
706 const gchar *public_tok;
709 public_tok = mono_metadata_blob_heap (image, key_index);
710 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
712 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
714 mono_digest_get_public_token (token, public_tok, len);
715 return encode_public_tok (token, 8);
718 return encode_public_tok (public_tok, len);
722 * mono_assembly_addref:
723 * @assemnly: the assembly to reference
725 * This routine increments the reference count on a MonoAssembly.
726 * The reference count is reduced every time the method mono_assembly_close() is
730 mono_assembly_addref (MonoAssembly *assembly)
732 InterlockedIncrement (&assembly->ref_count);
735 static MonoAssemblyName *
736 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
738 const MonoRuntimeInfo *current_runtime;
739 int pos, first, last;
741 if (aname->name == NULL) return aname;
742 current_runtime = mono_get_runtime_info ();
745 last = G_N_ELEMENTS (framework_assemblies) - 1;
747 while (first <= last) {
749 pos = first + (last - first) / 2;
750 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
752 const AssemblyVersionSet* vset;
753 int index = framework_assemblies[pos].version_set_index;
754 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
755 vset = ¤t_runtime->version_sets [index];
757 if (aname->major == vset->major && aname->minor == vset->minor &&
758 aname->build == vset->build && aname->revision == vset->revision)
761 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
762 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
763 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
765 aname->major, aname->minor, aname->build, aname->revision,
766 vset->major, vset->minor, vset->build, vset->revision
769 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
770 dest_aname->major = vset->major;
771 dest_aname->minor = vset->minor;
772 dest_aname->build = vset->build;
773 dest_aname->revision = vset->revision;
775 } else if (res < 0) {
785 * mono_assembly_get_assemblyref:
787 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
790 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
793 guint32 cols [MONO_ASSEMBLYREF_SIZE];
796 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
798 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
800 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
801 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
802 aname->hash_value = hash;
803 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
804 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
805 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
806 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
807 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
808 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
809 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
811 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
812 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
813 g_strlcpy (aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
816 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
821 mono_assembly_load_reference (MonoImage *image, int index)
823 MonoAssembly *reference;
824 MonoAssemblyName aname;
825 MonoImageOpenStatus status;
828 * image->references is shared between threads, so we need to access
829 * it inside a critical section.
831 mono_assemblies_lock ();
832 reference = image->references [index];
833 mono_assemblies_unlock ();
837 mono_assembly_get_assemblyref (image, index, &aname);
839 if (image->assembly->ref_only) {
840 /* We use the loaded corlib */
841 if (!strcmp (aname.name, "mscorlib"))
842 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
844 reference = mono_assembly_loaded_full (&aname, TRUE);
846 * Here we must advice that the error was due to
847 * a non loaded reference using the ReflectionOnly api
850 reference = REFERENCE_MISSING;
852 reference = mono_assembly_load (&aname, image->assembly->basedir, &status);
854 if (reference == NULL){
855 char *extra_msg = g_strdup ("");
857 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
858 extra_msg = g_strdup_printf ("The assembly was not found in the Global Assembly Cache, a path listed in the MONO_PATH environment variable, or in the location of the executing assembly (%s).\n", image->assembly->basedir);
859 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
860 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
861 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
862 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
863 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
864 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
867 g_warning ("The following assembly referenced from %s could not be loaded:\n"
868 " Assembly: %s (assemblyref_index=%d)\n"
869 " Version: %d.%d.%d.%d\n"
870 " Public Key: %s\n%s",
871 image->name, aname.name, index,
872 aname.major, aname.minor, aname.build, aname.revision,
873 strlen(aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
877 mono_assemblies_lock ();
878 if (reference == NULL) {
879 /* Flag as not found */
880 reference = REFERENCE_MISSING;
883 if (!image->references [index]) {
884 if (reference != REFERENCE_MISSING){
885 mono_assembly_addref (reference);
886 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
887 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
889 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
890 image->assembly->aname.name, image->assembly);
893 image->references [index] = reference;
895 mono_assemblies_unlock ();
897 if (image->references [index] != reference) {
898 /* Somebody loaded it before us */
899 mono_assembly_close (reference);
904 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
909 *status = MONO_IMAGE_OK;
911 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
913 image->references = g_new0 (MonoAssembly *, t->rows + 1);
915 /* resolve assembly references for modules */
916 for (i = 0; i < image->module_count; i++){
917 if (image->modules [i]) {
918 image->modules [i]->assembly = image->assembly;
919 mono_assembly_load_references (image->modules [i], status);
924 typedef struct AssemblyLoadHook AssemblyLoadHook;
925 struct AssemblyLoadHook {
926 AssemblyLoadHook *next;
927 MonoAssemblyLoadFunc func;
931 AssemblyLoadHook *assembly_load_hook = NULL;
934 mono_assembly_invoke_load_hook (MonoAssembly *ass)
936 AssemblyLoadHook *hook;
938 for (hook = assembly_load_hook; hook; hook = hook->next) {
939 hook->func (ass, hook->user_data);
944 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
946 AssemblyLoadHook *hook;
948 g_return_if_fail (func != NULL);
950 hook = g_new0 (AssemblyLoadHook, 1);
952 hook->user_data = user_data;
953 hook->next = assembly_load_hook;
954 assembly_load_hook = hook;
958 free_assembly_load_hooks (void)
960 AssemblyLoadHook *hook, *next;
962 for (hook = assembly_load_hook; hook; hook = next) {
968 typedef struct AssemblySearchHook AssemblySearchHook;
969 struct AssemblySearchHook {
970 AssemblySearchHook *next;
971 MonoAssemblySearchFunc func;
977 AssemblySearchHook *assembly_search_hook = NULL;
980 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
982 AssemblySearchHook *hook;
984 for (hook = assembly_search_hook; hook; hook = hook->next) {
985 if ((hook->refonly == refonly) && (hook->postload == postload)) {
986 MonoAssembly *ass = hook->func (aname, hook->user_data);
996 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
998 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
1002 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
1004 AssemblySearchHook *hook;
1006 g_return_if_fail (func != NULL);
1008 hook = g_new0 (AssemblySearchHook, 1);
1010 hook->user_data = user_data;
1011 hook->refonly = refonly;
1012 hook->postload = postload;
1013 hook->next = assembly_search_hook;
1014 assembly_search_hook = hook;
1018 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1020 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1024 free_assembly_search_hooks (void)
1026 AssemblySearchHook *hook, *next;
1028 for (hook = assembly_search_hook; hook; hook = next) {
1035 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1037 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1041 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1043 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1047 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1049 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1052 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1053 struct AssemblyPreLoadHook {
1054 AssemblyPreLoadHook *next;
1055 MonoAssemblyPreLoadFunc func;
1059 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1060 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1062 static MonoAssembly *
1063 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1065 AssemblyPreLoadHook *hook;
1066 MonoAssembly *assembly;
1068 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1069 assembly = hook->func (aname, assemblies_path, hook->user_data);
1070 if (assembly != NULL)
1077 static MonoAssembly *
1078 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1080 AssemblyPreLoadHook *hook;
1081 MonoAssembly *assembly;
1083 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1084 assembly = hook->func (aname, assemblies_path, hook->user_data);
1085 if (assembly != NULL)
1093 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1095 AssemblyPreLoadHook *hook;
1097 g_return_if_fail (func != NULL);
1099 hook = g_new0 (AssemblyPreLoadHook, 1);
1101 hook->user_data = user_data;
1102 hook->next = assembly_preload_hook;
1103 assembly_preload_hook = hook;
1107 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1109 AssemblyPreLoadHook *hook;
1111 g_return_if_fail (func != NULL);
1113 hook = g_new0 (AssemblyPreLoadHook, 1);
1115 hook->user_data = user_data;
1116 hook->next = assembly_refonly_preload_hook;
1117 assembly_refonly_preload_hook = hook;
1121 free_assembly_preload_hooks (void)
1123 AssemblyPreLoadHook *hook, *next;
1125 for (hook = assembly_preload_hook; hook; hook = next) {
1130 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1137 absolute_dir (const gchar *filename)
1148 if (g_path_is_absolute (filename))
1149 return g_path_get_dirname (filename);
1151 cwd = g_get_current_dir ();
1152 mixed = g_build_filename (cwd, filename, NULL);
1153 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1158 for (i = 0; (part = parts [i]) != NULL; i++) {
1159 if (!strcmp (part, "."))
1162 if (!strcmp (part, "..")) {
1163 if (list && list->next) /* Don't remove root */
1164 list = g_list_delete_link (list, list);
1166 list = g_list_prepend (list, part);
1170 result = g_string_new ("");
1171 list = g_list_reverse (list);
1173 /* Ignores last data pointer, which should be the filename */
1174 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next)
1176 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1180 g_string_free (result, FALSE);
1185 return g_strdup (".");
1192 * mono_assembly_open_from_bundle:
1193 * @filename: Filename requested
1194 * @status: return value
1196 * This routine tries to open the assembly specified by `filename' from the
1197 * defined bundles, if found, returns the MonoImage for it, if not found
1201 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1204 char *name = g_path_get_basename (filename);
1205 MonoImage *image = NULL;
1208 * we do a very simple search for bundled assemblies: it's not a general
1209 * purpose assembly loading mechanism.
1211 mono_assemblies_lock ();
1212 for (i = 0; !image && bundles [i]; ++i) {
1213 if (strcmp (bundles [i]->name, name) == 0) {
1214 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1218 mono_assemblies_unlock ();
1221 mono_image_addref (image);
1228 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1232 MonoImageOpenStatus def_status;
1235 g_return_val_if_fail (filename != NULL, NULL);
1238 status = &def_status;
1239 *status = MONO_IMAGE_OK;
1241 if (strncmp (filename, "file://", 7) == 0) {
1242 GError *error = NULL;
1243 gchar *uri = (gchar *) filename;
1247 * MS allows file://c:/... and fails on file://localhost/c:/...
1248 * They also throw an IndexOutOfRangeException if "file://"
1251 uri = g_strdup_printf ("file:///%s", uri + 7);
1254 uri = mono_escape_uri_string (tmpuri);
1255 fname = g_filename_from_uri (uri, NULL, &error);
1258 if (tmpuri != filename)
1261 if (error != NULL) {
1262 g_warning ("%s\n", error->message);
1263 g_error_free (error);
1264 fname = g_strdup (filename);
1267 fname = g_strdup (filename);
1270 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1271 "Assembly Loader probing location: '%s'.", filename);
1274 if (bundles != NULL)
1275 image = mono_assembly_open_from_bundle (fname, status, refonly);
1278 mono_assemblies_lock ();
1279 image = mono_image_open_full (fname, status, refonly);
1280 mono_assemblies_unlock ();
1284 if (*status == MONO_IMAGE_OK)
1285 *status = MONO_IMAGE_ERROR_ERRNO;
1290 if (image->assembly) {
1291 /* Already loaded by another appdomain */
1292 mono_assembly_invoke_load_hook (image->assembly);
1293 mono_image_close (image);
1295 return image->assembly;
1298 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1301 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1302 "Assembly Loader loaded assembly from location: '%s'.", filename);
1304 mono_config_for_assembly (ass->image);
1307 /* Clear the reference added by mono_image_open */
1308 mono_image_close (image);
1316 * load_friend_assemblies:
1319 * Load the list of friend assemblies that are allowed to access
1320 * the assembly's internal types and members. They are stored as assembly
1321 * names in custom attributes.
1324 load_friend_assemblies (MonoAssembly* ass)
1327 MonoCustomAttrInfo* attrs = mono_custom_attrs_from_assembly (ass);
1330 for (i = 0; i < attrs->num_attrs; ++i) {
1331 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1332 MonoAssemblyName *aname;
1335 /* Do some sanity checking */
1336 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1338 if (attr->data_size < 4)
1341 /* 0xFF means null string, see custom attr format */
1342 if (data [0] != 1 || data [1] != 0 || data [2] == 0xFF)
1344 slen = mono_metadata_decode_value (data + 2, &data);
1345 aname = g_new0 (MonoAssemblyName, 1);
1346 /*g_print ("friend ass: %s\n", data);*/
1347 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL)) {
1348 ass->friend_assembly_names = g_slist_prepend (ass->friend_assembly_names, aname);
1353 mono_custom_attrs_free (attrs);
1357 * mono_assembly_open:
1358 * @filename: Opens the assembly pointed out by this name
1359 * @status: where a status code can be returned
1361 * mono_assembly_open opens the PE-image pointed by @filename, and
1362 * loads any external assemblies referenced by it.
1364 * Return: a pointer to the MonoAssembly if @filename contains a valid
1365 * assembly or NULL on error. Details about the error are stored in the
1369 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1371 return mono_assembly_open_full (filename, status, FALSE);
1375 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1376 MonoImageOpenStatus *status, gboolean refonly)
1378 MonoAssembly *ass, *ass2;
1381 GHashTable *ass_loading;
1383 #if defined (PLATFORM_WIN32)
1388 tmp_fn = g_strdup (fname);
1389 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1390 if (tmp_fn [i] == '/')
1394 base_dir = absolute_dir (tmp_fn);
1398 base_dir = absolute_dir (fname);
1402 * To avoid deadlocks and scalability problems, we load assemblies outside
1403 * the assembly lock. This means that multiple threads might try to load
1404 * the same assembly at the same time. The first one to load it completely
1405 * "wins", the other threads free their copy and use the one loaded by
1406 * the winning thread.
1410 * Create assembly struct, and enter it into the assembly cache
1412 ass = g_new0 (MonoAssembly, 1);
1413 ass->basedir = base_dir;
1414 ass->ref_only = refonly;
1417 /* Add a non-temporary reference because of ass->image */
1418 mono_image_addref (image);
1420 mono_assembly_fill_assembly_name (image, &ass->aname);
1422 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Image addref %s %p -> %s %p: %d\n", ass->aname.name, ass, image->name, image, image->ref_count);
1425 * Atomically search the loaded list and add ourselves to it if necessary.
1427 mono_assemblies_lock ();
1428 if (ass->aname.name) {
1429 /* avoid loading the same assembly twice for now... */
1430 ass2 = search_loaded (&ass->aname, refonly);
1434 mono_image_close (image);
1435 *status = MONO_IMAGE_OK;
1436 mono_assemblies_unlock ();
1440 ass_loading = refonly ? assemblies_refonly_loading : assemblies_loading;
1441 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1442 loading = g_list_prepend (loading, ass);
1443 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1444 mono_assemblies_unlock ();
1446 g_assert (image->assembly == NULL);
1447 image->assembly = ass;
1449 mono_assembly_load_references (image, status);
1451 mono_assemblies_lock ();
1453 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1454 loading = g_list_remove (loading, ass);
1455 if (loading == NULL)
1456 /* Prevent memory leaks */
1457 g_hash_table_remove (ass_loading, (gpointer)GetCurrentThreadId ());
1459 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1460 if (*status != MONO_IMAGE_OK) {
1461 mono_assemblies_unlock ();
1462 mono_assembly_close (ass);
1466 if (ass->aname.name) {
1467 ass2 = search_loaded (&ass->aname, refonly);
1469 /* Somebody else has loaded the assembly before us */
1470 mono_assemblies_unlock ();
1471 mono_assembly_close (ass);
1476 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1477 if (mono_defaults.internals_visible_class)
1478 load_friend_assemblies (ass);
1479 mono_assemblies_unlock ();
1481 mono_assembly_invoke_load_hook (ass);
1487 mono_assembly_load_from (MonoImage *image, const char *fname,
1488 MonoImageOpenStatus *status)
1490 return mono_assembly_load_from_full (image, fname, status, FALSE);
1494 * mono_assembly_name_free:
1495 * @aname: assembly name to free
1497 * Frees the provided assembly name object.
1498 * (it does not frees the object itself, only the name members).
1501 mono_assembly_name_free (MonoAssemblyName *aname)
1506 g_free ((void *) aname->name);
1507 g_free ((void *) aname->culture);
1508 g_free ((void *) aname->hash_value);
1512 parse_public_key (const gchar *key, gchar** pubkey)
1515 gchar header [16], val, *arr;
1516 gint i, j, offset, bitlen, keylen, pkeylen;
1518 keylen = strlen (key) >> 1;
1522 val = g_ascii_xdigit_value (key [0]) << 4;
1523 val |= g_ascii_xdigit_value (key [1]);
1528 val = g_ascii_xdigit_value (key [24]);
1529 val |= g_ascii_xdigit_value (key [25]);
1541 /* We need the first 16 bytes
1542 * to check whether this key is valid or not */
1543 pkeylen = strlen (pkey) >> 1;
1547 for (i = 0, j = 0; i < 16; i++) {
1548 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1549 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1552 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1553 header [1] != 0x02 || /* Version (0x02) */
1554 header [2] != 0x00 || /* Reserved (word) */
1555 header [3] != 0x00 ||
1556 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1559 /* Based on this length, we _should_ be able to know if the length is right */
1560 bitlen = read32 (header + 12) >> 3;
1561 if ((bitlen + 16 + 4) != pkeylen)
1564 /* Encode the size of the blob */
1566 if (keylen <= 127) {
1567 arr = g_malloc (keylen + 1);
1568 arr [offset++] = keylen;
1570 arr = g_malloc (keylen + 2);
1571 arr [offset++] = 0x80; /* 10bs */
1572 arr [offset++] = keylen;
1575 for (i = offset, j = 0; i < keylen + offset; i++) {
1576 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1577 arr [i] |= g_ascii_xdigit_value (key [j++]);
1586 build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, MonoAssemblyName *aname, gboolean save_public_key)
1588 gint major, minor, build, revision;
1590 gchar *pkey, *pkeyptr, *encoded, tok [8];
1592 memset (aname, 0, sizeof (MonoAssemblyName));
1595 if (sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision) != 4)
1598 aname->major = major;
1599 aname->minor = minor;
1600 aname->build = build;
1601 aname->revision = revision;
1604 aname->name = g_strdup (name);
1607 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1608 aname->culture = g_strdup ("");
1610 aname->culture = g_strdup (culture);
1613 if (token && strncmp (token, "null", 4) != 0) {
1614 char *lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1615 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1619 if (key && strncmp (key, "null", 4) != 0) {
1620 if (!parse_public_key (key, &pkey)) {
1621 mono_assembly_name_free (aname);
1625 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1626 // We also need to generate the key token
1627 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1628 encoded = encode_public_tok ((guchar*) tok, 8);
1629 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1632 if (save_public_key)
1633 aname->public_key = (guint8*) pkey;
1642 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1647 parts = g_strsplit (dirname, "_", 3);
1648 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1653 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, aname, FALSE);
1659 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined)
1662 gchar *version = NULL;
1663 gchar *culture = NULL;
1664 gchar *token = NULL;
1670 gboolean version_defined;
1672 if (!is_version_defined)
1673 is_version_defined = &version_defined;
1674 *is_version_defined = FALSE;
1676 parts = tmp = g_strsplit (name, ",", 4);
1677 if (!tmp || !*tmp) {
1682 dllname = g_strstrip (*tmp);
1687 value = g_strstrip (*tmp);
1688 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1689 *is_version_defined = TRUE;
1690 version = g_strstrip (value + 8);
1695 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1696 culture = g_strstrip (value + 8);
1701 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1702 token = g_strstrip (value + 15);
1707 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1708 key = g_strstrip (value + 10);
1717 res = build_assembly_name (dllname, version, culture, token, key, aname, save_public_key);
1723 * mono_assembly_name_parse:
1724 * @name: name to parse
1725 * @aname: the destination assembly name
1727 * Parses an assembly qualified type name and assigns the name,
1728 * version, culture and token to the provided assembly name object.
1730 * Returns: true if the name could be parsed.
1733 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1735 return mono_assembly_name_parse_full (name, aname, FALSE, NULL);
1738 static MonoAssembly*
1739 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1741 gchar *fullpath = NULL;
1743 const char* direntry;
1744 MonoAssemblyName gac_aname;
1745 gint major=-1, minor=0, build=0, revision=0;
1746 gboolean exact_version;
1748 dirhandle = g_dir_open (basepath, 0, NULL);
1752 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1754 while ((direntry = g_dir_read_name (dirhandle))) {
1755 gboolean match = TRUE;
1757 parse_assembly_directory_name (aname->name, direntry, &gac_aname);
1759 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1762 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1763 strcmp ((char*)aname->public_key_token, (char*)gac_aname.public_key_token) != 0)
1767 if (exact_version) {
1768 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1769 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1771 else if (gac_aname.major < major)
1773 else if (gac_aname.major == major) {
1774 if (gac_aname.minor < minor)
1776 else if (gac_aname.minor == minor) {
1777 if (gac_aname.build < build)
1779 else if (gac_aname.build == build && gac_aname.revision <= revision)
1786 major = gac_aname.major;
1787 minor = gac_aname.minor;
1788 build = gac_aname.build;
1789 revision = gac_aname.revision;
1791 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1794 mono_assembly_name_free (&gac_aname);
1797 g_dir_close (dirhandle);
1799 if (fullpath == NULL)
1802 MonoAssembly *res = mono_assembly_open (fullpath, status);
1809 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1812 MonoAssemblyName *aname, base_name, maped_aname;
1813 gchar *fullname, *gacpath;
1816 memset (&base_name, 0, sizeof (MonoAssemblyName));
1819 if (!mono_assembly_name_parse (name, aname))
1823 * If no specific version has been requested, make sure we load the
1824 * correct version for system assemblies.
1826 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1827 aname = mono_assembly_remap_version (aname, &maped_aname);
1829 res = mono_assembly_loaded (aname);
1831 mono_assembly_name_free (aname);
1835 res = invoke_assembly_preload_hook (aname, assemblies_path);
1837 res->in_gac = FALSE;
1838 mono_assembly_name_free (aname);
1842 fullname = g_strdup_printf ("%s.dll", aname->name);
1844 if (extra_gac_paths) {
1845 paths = extra_gac_paths;
1846 while (!res && *paths) {
1847 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1848 res = probe_for_partial_name (gacpath, fullname, aname, status);
1857 mono_assembly_name_free (aname);
1861 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1862 res = probe_for_partial_name (gacpath, fullname, aname, status);
1869 mono_assembly_name_free (aname);
1875 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
1878 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
1882 if (strstr (aname->name, ".dll")) {
1883 len = strlen (aname->name) - 4;
1884 name = g_malloc (len);
1885 strncpy (name, aname->name, len);
1887 name = g_strdup (aname->name);
1889 if (aname->culture) {
1890 culture = g_strdup (aname->culture);
1891 g_strdown (culture);
1893 culture = g_strdup ("");
1895 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
1896 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
1900 filename = g_strconcat (pname, ".dll", NULL);
1901 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
1907 if (extra_gac_paths) {
1908 paths = extra_gac_paths;
1909 while (!image && *paths) {
1910 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
1911 "lib", "mono", "gac", subpath, NULL);
1912 image = mono_image_open (fullpath, NULL);
1923 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
1924 "mono", "gac", subpath, NULL);
1925 image = mono_image_open (fullpath, NULL);
1932 static MonoAssemblyName*
1933 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
1935 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
1936 dest_name->major = info->new_version.major;
1937 dest_name->minor = info->new_version.minor;
1938 dest_name->build = info->new_version.build;
1939 dest_name->revision = info->new_version.revision;
1944 /* LOCKING: Assumes that we are already locked */
1945 static MonoAssemblyBindingInfo*
1946 search_binding_loaded (MonoAssemblyName *aname)
1950 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
1951 MonoAssemblyBindingInfo *info = tmp->data;
1952 if (assembly_binding_maps_name (info, aname))
1959 static MonoAssemblyName*
1960 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
1962 MonoAssemblyBindingInfo *info, *info2;
1965 if (aname->public_key_token [0] == 0)
1968 mono_loader_lock ();
1969 info = search_binding_loaded (aname);
1970 mono_loader_unlock ();
1972 if (!check_policy_versions (info, aname))
1975 mono_assembly_bind_version (info, aname, dest_name);
1979 info = g_new0 (MonoAssemblyBindingInfo, 1);
1980 info->major = aname->major;
1981 info->minor = aname->minor;
1983 ppimage = mono_assembly_load_publisher_policy (aname);
1985 get_publisher_policy_info (ppimage, aname, info);
1986 mono_image_close (ppimage);
1989 /* Define default error value if needed */
1990 if (!info->is_valid) {
1991 info->name = g_strdup (aname->name);
1992 info->culture = g_strdup (aname->culture);
1993 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1996 mono_loader_lock ();
1997 info2 = search_binding_loaded (aname);
1999 /* This binding was added by another thread
2001 mono_assembly_binding_info_free (info);
2006 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2008 mono_loader_unlock ();
2010 if (!info->is_valid || !check_policy_versions (info, aname))
2013 mono_assembly_bind_version (info, aname, dest_name);
2018 * mono_assembly_load_from_gac
2020 * @aname: The assembly name object
2022 static MonoAssembly*
2023 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2025 MonoAssembly *result = NULL;
2026 gchar *name, *version, *culture, *fullpath, *subpath;
2030 if (aname->public_key_token [0] == 0) {
2034 if (strstr (aname->name, ".dll")) {
2035 len = strlen (filename) - 4;
2036 name = g_malloc (len);
2037 strncpy (name, aname->name, len);
2039 name = g_strdup (aname->name);
2042 if (aname->culture) {
2043 culture = g_strdup (aname->culture);
2044 g_strdown (culture);
2046 culture = g_strdup ("");
2049 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2050 aname->minor, aname->build, aname->revision,
2051 culture, aname->public_key_token);
2053 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2058 if (extra_gac_paths) {
2059 paths = extra_gac_paths;
2060 while (!result && *paths) {
2061 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2062 result = mono_assembly_open_full (fullpath, status, refonly);
2069 result->in_gac = TRUE;
2074 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2075 "mono", "gac", subpath, NULL);
2076 result = mono_assembly_open_full (fullpath, status, refonly);
2080 result->in_gac = TRUE;
2089 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2094 /* g_print ("corlib already loaded\n"); */
2098 if (assemblies_path) {
2099 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2104 /* Load corlib from mono/<version> */
2106 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2107 if (assemblies_path) {
2108 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2110 g_free (corlib_file);
2114 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2115 g_free (corlib_file);
2121 * mono_assembly_load_full:
2122 * @aname: A MonoAssemblyName with the assembly name to load.
2123 * @basedir: A directory to look up the assembly at.
2124 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2125 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2127 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2128 * attempts to load the assembly from that directory before probing the standard locations.
2130 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2131 * assembly binding takes place.
2133 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2134 * value pointed by status is updated with an error code.
2137 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2139 MonoAssembly *result;
2140 char *fullpath, *filename;
2141 MonoAssemblyName maped_aname, maped_name_pp;
2146 aname = mono_assembly_remap_version (aname, &maped_aname);
2148 /* Reflection only assemblies don't get assembly binding */
2150 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2152 result = mono_assembly_loaded_full (aname, refonly);
2156 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2158 result->in_gac = FALSE;
2162 /* Currently we retrieve the loaded corlib for reflection
2163 * only requests, like a common reflection only assembly
2165 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2166 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2169 len = strlen (aname->name);
2170 for (ext_index = 0; ext_index < 2; ext_index ++) {
2171 ext = ext_index == 0 ? ".dll" : ".exe";
2172 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2173 filename = g_strdup (aname->name);
2174 /* Don't try appending .dll/.exe if it already has one of those extensions */
2177 filename = g_strconcat (aname->name, ext, NULL);
2180 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2187 fullpath = g_build_filename (basedir, filename, NULL);
2188 result = mono_assembly_open_full (fullpath, status, refonly);
2191 result->in_gac = FALSE;
2197 result = load_in_path (filename, default_path, status, refonly);
2199 result->in_gac = FALSE;
2205 /* Try a postload search hook */
2206 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2212 * mono_assembly_load:
2213 * @aname: A MonoAssemblyName with the assembly name to load.
2214 * @basedir: A directory to look up the assembly at.
2215 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2217 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2218 * attempts to load the assembly from that directory before probing the standard locations.
2220 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2221 * value pointed by status is updated with an error code.
2224 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2226 return mono_assembly_load_full (aname, basedir, status, FALSE);
2230 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2233 MonoAssemblyName maped_aname;
2235 aname = mono_assembly_remap_version (aname, &maped_aname);
2237 mono_assemblies_lock ();
2238 res = search_loaded (aname, refonly);
2239 mono_assemblies_unlock ();
2245 * mono_assembly_loaded:
2246 * @aname: an assembly to look for.
2248 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2249 * a MonoAssembly that matches the MonoAssemblyName specified.
2252 mono_assembly_loaded (MonoAssemblyName *aname)
2254 return mono_assembly_loaded_full (aname, FALSE);
2258 * mono_assembly_close:
2259 * @assembly: the assembly to release.
2261 * This method releases a reference to the @assembly. The assembly is
2262 * only released when all the outstanding references to it are released.
2265 mono_assembly_close (MonoAssembly *assembly)
2268 g_return_if_fail (assembly != NULL);
2270 if (assembly == REFERENCE_MISSING)
2273 /* Might be 0 already */
2274 if (InterlockedDecrement (&assembly->ref_count) > 0)
2277 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2279 mono_assemblies_lock ();
2280 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2281 mono_assemblies_unlock ();
2283 if (assembly->image->references) {
2286 for (i = 0; assembly->image->references [i]; i++) {
2287 if (assembly->image->references [i])
2288 mono_assembly_close (assembly->image->references [i]);
2291 g_free (assembly->image->references);
2292 assembly->image->references = NULL;
2295 assembly->image->assembly = NULL;
2297 mono_image_close (assembly->image);
2299 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2300 MonoAssemblyName *fname = tmp->data;
2301 mono_assembly_name_free (fname);
2304 g_slist_free (assembly->friend_assembly_names);
2305 g_free (assembly->basedir);
2306 if (assembly->dynamic) {
2307 g_free ((char*)assembly->aname.culture);
2314 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2316 MonoImageOpenStatus status;
2319 module = mono_image_load_file_for_image (assembly->image, idx);
2321 mono_assembly_load_references (module, &status);
2327 mono_assembly_foreach (GFunc func, gpointer user_data)
2332 * We make a copy of the list to avoid calling the callback inside the
2333 * lock, which could lead to deadlocks.
2335 mono_assemblies_lock ();
2336 copy = g_list_copy (loaded_assemblies);
2337 mono_assemblies_unlock ();
2339 g_list_foreach (loaded_assemblies, func, user_data);
2345 * mono_assemblies_cleanup:
2347 * Free all resources used by this module.
2350 mono_assemblies_cleanup (void)
2354 DeleteCriticalSection (&assemblies_mutex);
2356 g_hash_table_destroy (assemblies_loading);
2357 g_hash_table_destroy (assemblies_refonly_loading);
2359 for (l = loaded_assembly_bindings; l; l = l->next) {
2360 MonoAssemblyBindingInfo *info = l->data;
2362 mono_assembly_binding_info_free (info);
2365 g_slist_free (loaded_assembly_bindings);
2367 free_assembly_load_hooks ();
2368 free_assembly_search_hooks ();
2369 free_assembly_preload_hooks ();
2373 * Holds the assembly of the application, for
2374 * System.Diagnostics.Process::MainModule
2376 static MonoAssembly *main_assembly=NULL;
2379 mono_assembly_set_main (MonoAssembly *assembly)
2381 main_assembly = assembly;
2385 * mono_assembly_get_main:
2387 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2390 mono_assembly_get_main (void)
2392 return (main_assembly);
2396 * mono_assembly_get_image:
2397 * @assembly: The assembly to retrieve the image from
2399 * Returns: the MonoImage associated with this assembly.
2402 mono_assembly_get_image (MonoAssembly *assembly)
2404 return assembly->image;
2408 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2410 bundles = assemblies;