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)
158 char **splitted, **dest;
160 path = g_getenv ("MONO_PATH");
164 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
166 g_strfreev (assemblies_path);
167 assemblies_path = dest = splitted;
175 if (g_getenv ("MONO_DEBUG") == NULL)
179 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
180 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
187 check_extra_gac_path_env (void) {
189 char **splitted, **dest;
191 path = g_getenv ("MONO_GAC_PREFIX");
195 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
197 g_strfreev (extra_gac_paths);
198 extra_gac_paths = dest = splitted;
206 if (g_getenv ("MONO_DEBUG") == NULL)
210 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
211 g_warning ("'%s' in MONO_GAC_PATH doesn't exist or has wrong permissions.", *splitted);
218 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
220 if (strcmp (info->name, aname->name))
223 if (info->major != aname->major || info->minor != aname->minor)
226 if ((info->culture != NULL) != (aname->culture != NULL))
229 if (info->culture && strcmp (info->culture, aname->culture))
232 if (strcmp ((const char *)info->public_key_token, (const char *)aname->public_key_token))
239 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
242 g_free (info->culture);
246 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
249 guint32 cols [MONO_MANIFEST_SIZE];
250 const gchar *filename;
251 gchar *subpath, *fullpath;
253 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
254 /* MS Impl. accepts policy assemblies with more than
255 * one manifest resource, and only takes the first one */
257 binding_info->is_valid = FALSE;
261 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
262 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
263 binding_info->is_valid = FALSE;
267 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
268 g_assert (filename != NULL);
270 subpath = g_path_get_dirname (image->name);
271 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
272 mono_config_parse_publisher_policy (fullpath, binding_info);
276 /* Define the optional elements/attributes before checking */
277 if (!binding_info->culture)
278 binding_info->culture = g_strdup ("");
280 /* Check that the most important elements/attributes exist */
281 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
282 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
283 mono_assembly_binding_info_free (binding_info);
284 binding_info->is_valid = FALSE;
288 binding_info->is_valid = TRUE;
292 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
294 if (v->major > aname->major)
296 else if (v->major < aname->major)
299 if (v->minor > aname->minor)
301 else if (v->minor < aname->minor)
304 if (v->build > aname->build)
306 else if (v->build < aname->build)
309 if (v->revision > aname->revision)
311 else if (v->revision < aname->revision)
318 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
323 /* If has_old_version_top doesn't exist, we don't have an interval */
324 if (!info->has_old_version_top) {
325 if (compare_versions (&info->old_version_bottom, name) == 0)
331 /* Check that the version defined by name is valid for the interval */
332 if (compare_versions (&info->old_version_top, name) < 0)
335 /* We should be greater or equal than the small version */
336 if (compare_versions (&info->old_version_bottom, name) > 0)
343 * mono_assembly_names_equal:
345 * @r: second assembly.
347 * Compares two MonoAssemblyNames and returns whether they are equal.
349 * This compares the names, the cultures, the release version and their
352 * Returns: TRUE if both assembly names are equal.
355 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
357 if (!l->name || !r->name)
360 if (strcmp (l->name, r->name))
363 if (l->culture && r->culture && strcmp (l->culture, r->culture))
366 if (l->major != r->major || l->minor != r->minor ||
367 l->build != r->build || l->revision != r->revision)
368 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)))
371 if (!l->public_key_token [0] || !r->public_key_token [0])
374 if (strcmp ((char*)l->public_key_token, (char*)r->public_key_token))
381 search_loaded (MonoAssemblyName* aname, gboolean refonly)
387 ass = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
392 * The assembly might be under load by this thread. In this case, it is
393 * safe to return an incomplete instance to prevent loops.
395 loading = g_hash_table_lookup (refonly ? assemblies_refonly_loading : assemblies_loading, (gpointer)GetCurrentThreadId ());
396 for (tmp = loading; tmp; tmp = tmp->next) {
398 if (!mono_assembly_names_equal (aname, &ass->aname))
407 static MonoAssembly *
408 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
412 MonoAssembly *result;
414 for (i = 0; search_path [i]; ++i) {
415 fullpath = g_build_filename (search_path [i], basename, NULL);
416 result = mono_assembly_open_full (fullpath, status, refonly);
425 * mono_assembly_setrootdir:
426 * @root_dir: The pathname of the root directory where we will locate assemblies
428 * This routine sets the internal default root directory for looking up
431 * This is used by Windows installations to compute dynamically the
432 * place where the Mono assemblies are located.
436 mono_assembly_setrootdir (const char *root_dir)
439 * Override the MONO_ASSEMBLIES directory configured at compile time.
441 /* Leak if called more than once */
442 default_path [0] = g_strdup (root_dir);
446 * mono_assembly_getrootdir:
448 * Obtains the root directory used for looking up assemblies.
450 * Returns: a string with the directory, this string should not be freed.
452 G_CONST_RETURN gchar *
453 mono_assembly_getrootdir (void)
455 return default_path [0];
460 * @assembly_dir: the base directory for assemblies
461 * @config_dir: the base directory for configuration files
463 * This routine is used internally and by developers embedding
464 * the runtime into their own applications.
466 * There are a number of cases to consider: Mono as a system-installed
467 * package that is available on the location preconfigured or Mono in
468 * a relocated location.
470 * If you are using a system-installed Mono, you can pass NULL
471 * to both parameters. If you are not, you should compute both
472 * directory values and call this routine.
474 * The values for a given PREFIX are:
476 * assembly_dir: PREFIX/lib
477 * config_dir: PREFIX/etc
479 * Notice that embedders that use Mono in a relocated way must
480 * compute the location at runtime, as they will be in control
481 * of where Mono is installed.
484 mono_set_dirs (const char *assembly_dir, const char *config_dir)
486 #if defined (MONO_ASSEMBLIES)
487 if (assembly_dir == NULL)
488 assembly_dir = MONO_ASSEMBLIES;
490 #if defined (MONO_CFG_DIR)
491 if (config_dir == NULL)
492 config_dir = MONO_CFG_DIR;
494 mono_assembly_setrootdir (assembly_dir);
495 mono_set_config_dir (config_dir);
498 #ifndef PLATFORM_WIN32
501 compute_base (char *path)
503 char *p = rindex (path, '/');
507 /* Not a well known Mono executable, we are embedded, cant guess the base */
508 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
512 p = rindex (path, '/');
516 if (strcmp (p, "/bin") != 0)
525 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
532 char *config, *lib, *mono;
536 * Only /usr prefix is treated specially
538 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
543 config = g_build_filename (base, "etc", NULL);
544 lib = g_build_filename (base, "lib", NULL);
545 mono = g_build_filename (lib, "mono/1.0", NULL);
546 if (stat (mono, &buf) == -1)
549 mono_set_dirs (lib, config);
557 #endif /* PLATFORM_WIN32 */
560 #undef GetModuleFileName
561 #define GetModuleFileName ceGetModuleFileNameA
563 DWORD ceGetModuleFileNameA(HMODULE hModule, char* lpFilename, DWORD nSize)
566 wchar_t* wbuff = (wchar_t*)LocalAlloc(LPTR, nSize*2);
567 res = GetModuleFileNameW(hModule, wbuff, nSize);
569 int len = wcslen(wbuff);
570 WideCharToMultiByte(CP_ACP, 0, wbuff, len, lpFilename, len, NULL, NULL);
580 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
581 * this auto-detects the prefix where Mono was installed.
584 mono_set_rootdir (void)
586 #ifdef PLATFORM_WIN32
587 gunichar2 moddir [MAXPATHLEN];
588 gchar *bindir, *installdir, *root, *utf8name, *config;
590 GetModuleFileNameW (NULL, moddir, MAXPATHLEN);
591 utf8name = g_utf16_to_utf8 (moddir, -1, NULL, NULL, NULL);
592 bindir = g_path_get_dirname (utf8name);
593 installdir = g_path_get_dirname (bindir);
594 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
596 config = g_build_filename (root, "..", "etc", NULL);
597 mono_set_dirs (root, config);
610 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
618 /* Solaris 10 style */
619 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
620 s = readlink (str, buf, sizeof (buf)-1);
632 * mono_assemblies_init:
634 * Initialize global variables used by this module.
637 mono_assemblies_init (void)
640 * Initialize our internal paths if we have not been initialized yet.
641 * This happens when embedders use Mono.
643 if (mono_assembly_getrootdir () == NULL)
647 check_extra_gac_path_env ();
649 InitializeCriticalSection (&assemblies_mutex);
651 assemblies_loading = g_hash_table_new (NULL, NULL);
652 assemblies_refonly_loading = g_hash_table_new (NULL, NULL);
656 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
658 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
659 guint32 cols [MONO_ASSEMBLY_SIZE];
664 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
667 aname->hash_value = NULL;
668 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
669 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
670 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
671 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
672 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
673 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
674 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
675 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
676 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
677 guchar* token = g_malloc (8);
682 pkey = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
683 len = mono_metadata_decode_blob_size (pkey, &pkey);
684 aname->public_key = (guchar*)pkey;
686 mono_digest_get_public_token (token, aname->public_key, len);
687 encoded = encode_public_tok (token, 8);
688 g_strlcpy ((char*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
694 aname->public_key = NULL;
695 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
698 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
699 aname->public_key = (guchar*)mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
702 aname->public_key = 0;
708 * mono_stringify_assembly_name:
709 * @aname: the assembly name.
711 * Convert @aname into its string format. The returned string is dynamically
712 * allocated and should be freed by the caller.
714 * Returns: a newly allocated string with a string representation of
718 mono_stringify_assembly_name (MonoAssemblyName *aname)
720 return g_strdup_printf (
721 "%s, Version=%d.%d.%d.%d, Culture=%s%s%s",
723 aname->major, aname->minor, aname->build, aname->revision,
724 aname->culture && *aname->culture? aname->culture: "neutral",
725 aname->public_key_token [0] ? ", PublicKeyToken=" : "",
726 aname->public_key_token [0] ? (char *)aname->public_key_token : "");
730 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
732 const gchar *public_tok;
735 public_tok = mono_metadata_blob_heap (image, key_index);
736 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
738 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
740 mono_digest_get_public_token (token, (guchar*)public_tok, len);
741 return encode_public_tok (token, 8);
744 return encode_public_tok ((guchar*)public_tok, len);
748 * mono_assembly_addref:
749 * @assemnly: the assembly to reference
751 * This routine increments the reference count on a MonoAssembly.
752 * The reference count is reduced every time the method mono_assembly_close() is
756 mono_assembly_addref (MonoAssembly *assembly)
758 InterlockedIncrement (&assembly->ref_count);
761 static MonoAssemblyName *
762 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
764 const MonoRuntimeInfo *current_runtime;
765 int pos, first, last;
767 if (aname->name == NULL) return aname;
768 current_runtime = mono_get_runtime_info ();
771 last = G_N_ELEMENTS (framework_assemblies) - 1;
773 while (first <= last) {
775 pos = first + (last - first) / 2;
776 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
778 const AssemblyVersionSet* vset;
779 int index = framework_assemblies[pos].version_set_index;
780 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
781 vset = ¤t_runtime->version_sets [index];
783 if (aname->major == vset->major && aname->minor == vset->minor &&
784 aname->build == vset->build && aname->revision == vset->revision)
787 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
788 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
789 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
791 aname->major, aname->minor, aname->build, aname->revision,
792 vset->major, vset->minor, vset->build, vset->revision
795 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
796 dest_aname->major = vset->major;
797 dest_aname->minor = vset->minor;
798 dest_aname->build = vset->build;
799 dest_aname->revision = vset->revision;
801 } else if (res < 0) {
811 * mono_assembly_get_assemblyref:
813 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
816 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
819 guint32 cols [MONO_ASSEMBLYREF_SIZE];
822 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
824 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
826 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
827 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
828 aname->hash_value = hash;
829 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
830 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
831 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
832 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
833 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
834 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
835 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
837 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
838 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
839 g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
842 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
847 mono_assembly_load_reference (MonoImage *image, int index)
849 MonoAssembly *reference;
850 MonoAssemblyName aname;
851 MonoImageOpenStatus status;
854 * image->references is shared between threads, so we need to access
855 * it inside a critical section.
857 mono_assemblies_lock ();
858 reference = image->references [index];
859 mono_assemblies_unlock ();
863 mono_assembly_get_assemblyref (image, index, &aname);
865 if (image->assembly && image->assembly->ref_only) {
866 /* We use the loaded corlib */
867 if (!strcmp (aname.name, "mscorlib"))
868 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
870 reference = mono_assembly_loaded_full (&aname, TRUE);
872 * Here we must advice that the error was due to
873 * a non loaded reference using the ReflectionOnly api
876 reference = REFERENCE_MISSING;
878 reference = mono_assembly_load (&aname, image->assembly? image->assembly->basedir: NULL, &status);
880 if (reference == NULL){
881 char *extra_msg = g_strdup ("");
883 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
884 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);
885 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
886 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
887 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
888 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
889 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
890 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
893 g_warning ("The following assembly referenced from %s could not be loaded:\n"
894 " Assembly: %s (assemblyref_index=%d)\n"
895 " Version: %d.%d.%d.%d\n"
896 " Public Key: %s\n%s",
897 image->name, aname.name, index,
898 aname.major, aname.minor, aname.build, aname.revision,
899 strlen ((char*)aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
903 mono_assemblies_lock ();
904 if (reference == NULL) {
905 /* Flag as not found */
906 reference = REFERENCE_MISSING;
909 if (!image->references [index]) {
910 if (reference != REFERENCE_MISSING){
911 mono_assembly_addref (reference);
913 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
914 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
917 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
918 image->assembly->aname.name, image->assembly);
921 image->references [index] = reference;
923 mono_assemblies_unlock ();
925 if (image->references [index] != reference) {
926 /* Somebody loaded it before us */
927 mono_assembly_close (reference);
932 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
937 *status = MONO_IMAGE_OK;
939 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
941 image->references = g_new0 (MonoAssembly *, t->rows + 1);
943 /* resolve assembly references for modules */
944 for (i = 0; i < image->module_count; i++){
945 if (image->modules [i]) {
946 image->modules [i]->assembly = image->assembly;
947 mono_assembly_load_references (image->modules [i], status);
952 typedef struct AssemblyLoadHook AssemblyLoadHook;
953 struct AssemblyLoadHook {
954 AssemblyLoadHook *next;
955 MonoAssemblyLoadFunc func;
959 AssemblyLoadHook *assembly_load_hook = NULL;
962 mono_assembly_invoke_load_hook (MonoAssembly *ass)
964 AssemblyLoadHook *hook;
966 for (hook = assembly_load_hook; hook; hook = hook->next) {
967 hook->func (ass, hook->user_data);
972 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
974 AssemblyLoadHook *hook;
976 g_return_if_fail (func != NULL);
978 hook = g_new0 (AssemblyLoadHook, 1);
980 hook->user_data = user_data;
981 hook->next = assembly_load_hook;
982 assembly_load_hook = hook;
986 free_assembly_load_hooks (void)
988 AssemblyLoadHook *hook, *next;
990 for (hook = assembly_load_hook; hook; hook = next) {
996 typedef struct AssemblySearchHook AssemblySearchHook;
997 struct AssemblySearchHook {
998 AssemblySearchHook *next;
999 MonoAssemblySearchFunc func;
1005 AssemblySearchHook *assembly_search_hook = NULL;
1007 static MonoAssembly*
1008 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
1010 AssemblySearchHook *hook;
1012 for (hook = assembly_search_hook; hook; hook = hook->next) {
1013 if ((hook->refonly == refonly) && (hook->postload == postload)) {
1014 MonoAssembly *ass = hook->func (aname, hook->user_data);
1024 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
1026 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
1030 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
1032 AssemblySearchHook *hook;
1034 g_return_if_fail (func != NULL);
1036 hook = g_new0 (AssemblySearchHook, 1);
1038 hook->user_data = user_data;
1039 hook->refonly = refonly;
1040 hook->postload = postload;
1041 hook->next = assembly_search_hook;
1042 assembly_search_hook = hook;
1046 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1048 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1052 free_assembly_search_hooks (void)
1054 AssemblySearchHook *hook, *next;
1056 for (hook = assembly_search_hook; hook; hook = next) {
1063 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1065 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1069 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1071 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1075 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1077 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1080 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1081 struct AssemblyPreLoadHook {
1082 AssemblyPreLoadHook *next;
1083 MonoAssemblyPreLoadFunc func;
1087 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1088 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1090 static MonoAssembly *
1091 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1093 AssemblyPreLoadHook *hook;
1094 MonoAssembly *assembly;
1096 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1097 assembly = hook->func (aname, assemblies_path, hook->user_data);
1098 if (assembly != NULL)
1105 static MonoAssembly *
1106 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1108 AssemblyPreLoadHook *hook;
1109 MonoAssembly *assembly;
1111 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1112 assembly = hook->func (aname, assemblies_path, hook->user_data);
1113 if (assembly != NULL)
1121 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1123 AssemblyPreLoadHook *hook;
1125 g_return_if_fail (func != NULL);
1127 hook = g_new0 (AssemblyPreLoadHook, 1);
1129 hook->user_data = user_data;
1130 hook->next = assembly_preload_hook;
1131 assembly_preload_hook = hook;
1135 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1137 AssemblyPreLoadHook *hook;
1139 g_return_if_fail (func != NULL);
1141 hook = g_new0 (AssemblyPreLoadHook, 1);
1143 hook->user_data = user_data;
1144 hook->next = assembly_refonly_preload_hook;
1145 assembly_refonly_preload_hook = hook;
1149 free_assembly_preload_hooks (void)
1151 AssemblyPreLoadHook *hook, *next;
1153 for (hook = assembly_preload_hook; hook; hook = next) {
1158 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1165 absolute_dir (const gchar *filename)
1176 if (g_path_is_absolute (filename))
1177 return g_path_get_dirname (filename);
1179 cwd = g_get_current_dir ();
1180 mixed = g_build_filename (cwd, filename, NULL);
1181 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1186 for (i = 0; (part = parts [i]) != NULL; i++) {
1187 if (!strcmp (part, "."))
1190 if (!strcmp (part, "..")) {
1191 if (list && list->next) /* Don't remove root */
1192 list = g_list_delete_link (list, list);
1194 list = g_list_prepend (list, part);
1198 result = g_string_new ("");
1199 list = g_list_reverse (list);
1201 /* Ignores last data pointer, which should be the filename */
1202 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1204 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1209 g_string_free (result, FALSE);
1214 return g_strdup (".");
1221 * mono_assembly_open_from_bundle:
1222 * @filename: Filename requested
1223 * @status: return value
1225 * This routine tries to open the assembly specified by `filename' from the
1226 * defined bundles, if found, returns the MonoImage for it, if not found
1230 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1234 MonoImage *image = NULL;
1237 * we do a very simple search for bundled assemblies: it's not a general
1238 * purpose assembly loading mechanism.
1244 name = g_path_get_basename (filename);
1246 mono_assemblies_lock ();
1247 for (i = 0; !image && bundles [i]; ++i) {
1248 if (strcmp (bundles [i]->name, name) == 0) {
1249 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1253 mono_assemblies_unlock ();
1256 mono_image_addref (image);
1263 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1267 MonoImageOpenStatus def_status;
1270 g_return_val_if_fail (filename != NULL, NULL);
1273 status = &def_status;
1274 *status = MONO_IMAGE_OK;
1276 if (strncmp (filename, "file://", 7) == 0) {
1277 GError *error = NULL;
1278 gchar *uri = (gchar *) filename;
1282 * MS allows file://c:/... and fails on file://localhost/c:/...
1283 * They also throw an IndexOutOfRangeException if "file://"
1286 uri = g_strdup_printf ("file:///%s", uri + 7);
1289 uri = mono_escape_uri_string (tmpuri);
1290 fname = g_filename_from_uri (uri, NULL, &error);
1293 if (tmpuri != filename)
1296 if (error != NULL) {
1297 g_warning ("%s\n", error->message);
1298 g_error_free (error);
1299 fname = g_strdup (filename);
1302 fname = g_strdup (filename);
1305 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1306 "Assembly Loader probing location: '%s'.", filename);
1309 if (bundles != NULL)
1310 image = mono_assembly_open_from_bundle (fname, status, refonly);
1313 mono_assemblies_lock ();
1314 image = mono_image_open_full (fname, status, refonly);
1315 mono_assemblies_unlock ();
1319 if (*status == MONO_IMAGE_OK)
1320 *status = MONO_IMAGE_ERROR_ERRNO;
1325 if (image->assembly) {
1326 /* Already loaded by another appdomain */
1327 mono_assembly_invoke_load_hook (image->assembly);
1328 mono_image_close (image);
1330 return image->assembly;
1333 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1336 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1337 "Assembly Loader loaded assembly from location: '%s'.", filename);
1339 mono_config_for_assembly (ass->image);
1342 /* Clear the reference added by mono_image_open */
1343 mono_image_close (image);
1351 * load_friend_assemblies:
1354 * Load the list of friend assemblies that are allowed to access
1355 * the assembly's internal types and members. They are stored as assembly
1356 * names in custom attributes.
1359 load_friend_assemblies (MonoAssembly* ass)
1362 MonoCustomAttrInfo* attrs = mono_custom_attrs_from_assembly (ass);
1365 for (i = 0; i < attrs->num_attrs; ++i) {
1366 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1367 MonoAssemblyName *aname;
1370 /* Do some sanity checking */
1371 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1373 if (attr->data_size < 4)
1375 data = (const char*)attr->data;
1376 /* 0xFF means null string, see custom attr format */
1377 if (data [0] != 1 || data [1] != 0 || (data [2] & 0xFF) == 0xFF)
1379 slen = mono_metadata_decode_value (data + 2, &data);
1380 aname = g_new0 (MonoAssemblyName, 1);
1381 /*g_print ("friend ass: %s\n", data);*/
1382 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL)) {
1383 ass->friend_assembly_names = g_slist_prepend (ass->friend_assembly_names, aname);
1388 mono_custom_attrs_free (attrs);
1392 * mono_assembly_open:
1393 * @filename: Opens the assembly pointed out by this name
1394 * @status: where a status code can be returned
1396 * mono_assembly_open opens the PE-image pointed by @filename, and
1397 * loads any external assemblies referenced by it.
1399 * Return: a pointer to the MonoAssembly if @filename contains a valid
1400 * assembly or NULL on error. Details about the error are stored in the
1404 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1406 return mono_assembly_open_full (filename, status, FALSE);
1410 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1411 MonoImageOpenStatus *status, gboolean refonly)
1413 MonoAssembly *ass, *ass2;
1416 GHashTable *ass_loading;
1418 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1419 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1420 *status = MONO_IMAGE_IMAGE_INVALID;
1425 #if defined (PLATFORM_WIN32)
1430 tmp_fn = g_strdup (fname);
1431 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1432 if (tmp_fn [i] == '/')
1436 base_dir = absolute_dir (tmp_fn);
1440 base_dir = absolute_dir (fname);
1444 * To avoid deadlocks and scalability problems, we load assemblies outside
1445 * the assembly lock. This means that multiple threads might try to load
1446 * the same assembly at the same time. The first one to load it completely
1447 * "wins", the other threads free their copy and use the one loaded by
1448 * the winning thread.
1452 * Create assembly struct, and enter it into the assembly cache
1454 ass = g_new0 (MonoAssembly, 1);
1455 ass->basedir = base_dir;
1456 ass->ref_only = refonly;
1459 /* Add a non-temporary reference because of ass->image */
1460 mono_image_addref (image);
1462 mono_assembly_fill_assembly_name (image, &ass->aname);
1464 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);
1467 * Atomically search the loaded list and add ourselves to it if necessary.
1469 mono_assemblies_lock ();
1470 if (ass->aname.name) {
1471 /* avoid loading the same assembly twice for now... */
1472 ass2 = search_loaded (&ass->aname, refonly);
1474 mono_assemblies_unlock ();
1477 mono_image_close (image);
1478 *status = MONO_IMAGE_OK;
1482 ass_loading = refonly ? assemblies_refonly_loading : assemblies_loading;
1483 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1484 loading = g_list_prepend (loading, ass);
1485 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1486 mono_assemblies_unlock ();
1488 g_assert (image->assembly == NULL);
1489 image->assembly = ass;
1491 mono_assembly_load_references (image, status);
1493 mono_assemblies_lock ();
1495 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1496 loading = g_list_remove (loading, ass);
1497 if (loading == NULL)
1498 /* Prevent memory leaks */
1499 g_hash_table_remove (ass_loading, (gpointer)GetCurrentThreadId ());
1501 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1502 if (*status != MONO_IMAGE_OK) {
1503 mono_assemblies_unlock ();
1504 mono_assembly_close (ass);
1508 if (ass->aname.name) {
1509 ass2 = search_loaded (&ass->aname, refonly);
1511 /* Somebody else has loaded the assembly before us */
1512 mono_assemblies_unlock ();
1513 mono_assembly_close (ass);
1518 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1519 if (mono_defaults.internals_visible_class)
1520 load_friend_assemblies (ass);
1521 mono_assemblies_unlock ();
1523 mono_assembly_invoke_load_hook (ass);
1529 mono_assembly_load_from (MonoImage *image, const char *fname,
1530 MonoImageOpenStatus *status)
1532 return mono_assembly_load_from_full (image, fname, status, FALSE);
1536 * mono_assembly_name_free:
1537 * @aname: assembly name to free
1539 * Frees the provided assembly name object.
1540 * (it does not frees the object itself, only the name members).
1543 mono_assembly_name_free (MonoAssemblyName *aname)
1548 g_free ((void *) aname->name);
1549 g_free ((void *) aname->culture);
1550 g_free ((void *) aname->hash_value);
1554 parse_public_key (const gchar *key, gchar** pubkey)
1557 gchar header [16], val, *arr;
1558 gint i, j, offset, bitlen, keylen, pkeylen;
1560 keylen = strlen (key) >> 1;
1564 val = g_ascii_xdigit_value (key [0]) << 4;
1565 val |= g_ascii_xdigit_value (key [1]);
1570 val = g_ascii_xdigit_value (key [24]);
1571 val |= g_ascii_xdigit_value (key [25]);
1583 /* We need the first 16 bytes
1584 * to check whether this key is valid or not */
1585 pkeylen = strlen (pkey) >> 1;
1589 for (i = 0, j = 0; i < 16; i++) {
1590 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1591 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1594 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1595 header [1] != 0x02 || /* Version (0x02) */
1596 header [2] != 0x00 || /* Reserved (word) */
1597 header [3] != 0x00 ||
1598 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1601 /* Based on this length, we _should_ be able to know if the length is right */
1602 bitlen = read32 (header + 12) >> 3;
1603 if ((bitlen + 16 + 4) != pkeylen)
1606 /* Encode the size of the blob */
1608 if (keylen <= 127) {
1609 arr = g_malloc (keylen + 1);
1610 arr [offset++] = keylen;
1612 arr = g_malloc (keylen + 2);
1613 arr [offset++] = 0x80; /* 10bs */
1614 arr [offset++] = keylen;
1617 for (i = offset, j = 0; i < keylen + offset; i++) {
1618 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1619 arr [i] |= g_ascii_xdigit_value (key [j++]);
1628 build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, MonoAssemblyName *aname, gboolean save_public_key)
1630 gint major, minor, build, revision;
1633 gchar *pkey, *pkeyptr, *encoded, tok [8];
1635 memset (aname, 0, sizeof (MonoAssemblyName));
1638 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1639 if (version_parts < 2 || version_parts > 4)
1642 /* FIXME: we should set build & revision to -1 (instead of 0)
1643 if these are not set in the version string. That way, later on,
1644 we can still determine if these were specified. */
1645 aname->major = major;
1646 aname->minor = minor;
1647 if (version_parts >= 3)
1648 aname->build = build;
1651 if (version_parts == 4)
1652 aname->revision = revision;
1654 aname->revision = 0;
1657 aname->name = g_strdup (name);
1660 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1661 aname->culture = g_strdup ("");
1663 aname->culture = g_strdup (culture);
1666 if (token && strncmp (token, "null", 4) != 0) {
1667 char *lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1668 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1672 if (key && strncmp (key, "null", 4) != 0) {
1673 if (!parse_public_key (key, &pkey)) {
1674 mono_assembly_name_free (aname);
1678 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1679 // We also need to generate the key token
1680 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1681 encoded = encode_public_tok ((guchar*) tok, 8);
1682 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1685 if (save_public_key)
1686 aname->public_key = (guint8*) pkey;
1695 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1700 parts = g_strsplit (dirname, "_", 3);
1701 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1706 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, aname, FALSE);
1712 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined)
1715 gchar *version = NULL;
1716 gchar *culture = NULL;
1717 gchar *token = NULL;
1723 gboolean version_defined;
1725 if (!is_version_defined)
1726 is_version_defined = &version_defined;
1727 *is_version_defined = FALSE;
1729 parts = tmp = g_strsplit (name, ",", 4);
1730 if (!tmp || !*tmp) {
1735 dllname = g_strstrip (*tmp);
1740 value = g_strstrip (*tmp);
1741 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1742 *is_version_defined = TRUE;
1743 version = g_strstrip (value + 8);
1748 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1749 culture = g_strstrip (value + 8);
1754 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1755 token = g_strstrip (value + 15);
1760 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1761 key = g_strstrip (value + 10);
1770 res = build_assembly_name (dllname, version, culture, token, key, aname, save_public_key);
1776 * mono_assembly_name_parse:
1777 * @name: name to parse
1778 * @aname: the destination assembly name
1780 * Parses an assembly qualified type name and assigns the name,
1781 * version, culture and token to the provided assembly name object.
1783 * Returns: true if the name could be parsed.
1786 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1788 return mono_assembly_name_parse_full (name, aname, FALSE, NULL);
1791 static MonoAssembly*
1792 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1794 gchar *fullpath = NULL;
1796 const char* direntry;
1797 MonoAssemblyName gac_aname;
1798 gint major=-1, minor=0, build=0, revision=0;
1799 gboolean exact_version;
1801 dirhandle = g_dir_open (basepath, 0, NULL);
1805 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1807 while ((direntry = g_dir_read_name (dirhandle))) {
1808 gboolean match = TRUE;
1810 parse_assembly_directory_name (aname->name, direntry, &gac_aname);
1812 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1815 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1816 strcmp ((char*)aname->public_key_token, (char*)gac_aname.public_key_token) != 0)
1820 if (exact_version) {
1821 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1822 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1824 else if (gac_aname.major < major)
1826 else if (gac_aname.major == major) {
1827 if (gac_aname.minor < minor)
1829 else if (gac_aname.minor == minor) {
1830 if (gac_aname.build < build)
1832 else if (gac_aname.build == build && gac_aname.revision <= revision)
1839 major = gac_aname.major;
1840 minor = gac_aname.minor;
1841 build = gac_aname.build;
1842 revision = gac_aname.revision;
1844 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1847 mono_assembly_name_free (&gac_aname);
1850 g_dir_close (dirhandle);
1852 if (fullpath == NULL)
1855 MonoAssembly *res = mono_assembly_open (fullpath, status);
1862 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1865 MonoAssemblyName *aname, base_name, maped_aname;
1866 gchar *fullname, *gacpath;
1869 memset (&base_name, 0, sizeof (MonoAssemblyName));
1872 if (!mono_assembly_name_parse (name, aname))
1876 * If no specific version has been requested, make sure we load the
1877 * correct version for system assemblies.
1879 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1880 aname = mono_assembly_remap_version (aname, &maped_aname);
1882 res = mono_assembly_loaded (aname);
1884 mono_assembly_name_free (aname);
1888 res = invoke_assembly_preload_hook (aname, assemblies_path);
1890 res->in_gac = FALSE;
1891 mono_assembly_name_free (aname);
1895 fullname = g_strdup_printf ("%s.dll", aname->name);
1897 if (extra_gac_paths) {
1898 paths = extra_gac_paths;
1899 while (!res && *paths) {
1900 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1901 res = probe_for_partial_name (gacpath, fullname, aname, status);
1910 mono_assembly_name_free (aname);
1914 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1915 res = probe_for_partial_name (gacpath, fullname, aname, status);
1922 mono_assembly_name_free (aname);
1928 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
1931 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
1935 if (strstr (aname->name, ".dll")) {
1936 len = strlen (aname->name) - 4;
1937 name = g_malloc (len);
1938 strncpy (name, aname->name, len);
1940 name = g_strdup (aname->name);
1942 if (aname->culture) {
1943 culture = g_strdup (aname->culture);
1944 g_strdown (culture);
1946 culture = g_strdup ("");
1948 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
1949 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
1953 filename = g_strconcat (pname, ".dll", NULL);
1954 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
1960 if (extra_gac_paths) {
1961 paths = extra_gac_paths;
1962 while (!image && *paths) {
1963 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
1964 "lib", "mono", "gac", subpath, NULL);
1965 image = mono_image_open (fullpath, NULL);
1976 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
1977 "mono", "gac", subpath, NULL);
1978 image = mono_image_open (fullpath, NULL);
1985 static MonoAssemblyName*
1986 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
1988 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
1989 dest_name->major = info->new_version.major;
1990 dest_name->minor = info->new_version.minor;
1991 dest_name->build = info->new_version.build;
1992 dest_name->revision = info->new_version.revision;
1997 /* LOCKING: Assumes that we are already locked */
1998 static MonoAssemblyBindingInfo*
1999 search_binding_loaded (MonoAssemblyName *aname)
2003 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2004 MonoAssemblyBindingInfo *info = tmp->data;
2005 if (assembly_binding_maps_name (info, aname))
2012 static MonoAssemblyName*
2013 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2015 MonoAssemblyBindingInfo *info, *info2;
2018 if (aname->public_key_token [0] == 0)
2021 mono_loader_lock ();
2022 info = search_binding_loaded (aname);
2023 mono_loader_unlock ();
2025 if (!check_policy_versions (info, aname))
2028 mono_assembly_bind_version (info, aname, dest_name);
2032 info = g_new0 (MonoAssemblyBindingInfo, 1);
2033 info->major = aname->major;
2034 info->minor = aname->minor;
2036 ppimage = mono_assembly_load_publisher_policy (aname);
2038 get_publisher_policy_info (ppimage, aname, info);
2039 mono_image_close (ppimage);
2042 /* Define default error value if needed */
2043 if (!info->is_valid) {
2044 info->name = g_strdup (aname->name);
2045 info->culture = g_strdup (aname->culture);
2046 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2049 mono_loader_lock ();
2050 info2 = search_binding_loaded (aname);
2052 /* This binding was added by another thread
2054 mono_assembly_binding_info_free (info);
2059 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2061 mono_loader_unlock ();
2063 if (!info->is_valid || !check_policy_versions (info, aname))
2066 mono_assembly_bind_version (info, aname, dest_name);
2071 * mono_assembly_load_from_gac
2073 * @aname: The assembly name object
2075 static MonoAssembly*
2076 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2078 MonoAssembly *result = NULL;
2079 gchar *name, *version, *culture, *fullpath, *subpath;
2083 if (aname->public_key_token [0] == 0) {
2087 if (strstr (aname->name, ".dll")) {
2088 len = strlen (filename) - 4;
2089 name = g_malloc (len);
2090 strncpy (name, aname->name, len);
2092 name = g_strdup (aname->name);
2095 if (aname->culture) {
2096 culture = g_strdup (aname->culture);
2097 g_strdown (culture);
2099 culture = g_strdup ("");
2102 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2103 aname->minor, aname->build, aname->revision,
2104 culture, aname->public_key_token);
2106 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2111 if (extra_gac_paths) {
2112 paths = extra_gac_paths;
2113 while (!result && *paths) {
2114 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2115 result = mono_assembly_open_full (fullpath, status, refonly);
2122 result->in_gac = TRUE;
2127 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2128 "mono", "gac", subpath, NULL);
2129 result = mono_assembly_open_full (fullpath, status, refonly);
2133 result->in_gac = TRUE;
2142 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2147 /* g_print ("corlib already loaded\n"); */
2151 if (assemblies_path) {
2152 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2157 /* Load corlib from mono/<version> */
2159 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2160 if (assemblies_path) {
2161 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2163 g_free (corlib_file);
2167 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2168 g_free (corlib_file);
2174 * mono_assembly_load_full:
2175 * @aname: A MonoAssemblyName with the assembly name to load.
2176 * @basedir: A directory to look up the assembly at.
2177 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2178 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2180 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2181 * attempts to load the assembly from that directory before probing the standard locations.
2183 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2184 * assembly binding takes place.
2186 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2187 * value pointed by status is updated with an error code.
2190 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2192 MonoAssembly *result;
2193 char *fullpath, *filename;
2194 MonoAssemblyName maped_aname, maped_name_pp;
2199 aname = mono_assembly_remap_version (aname, &maped_aname);
2201 /* Reflection only assemblies don't get assembly binding */
2203 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2205 result = mono_assembly_loaded_full (aname, refonly);
2209 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2211 result->in_gac = FALSE;
2215 /* Currently we retrieve the loaded corlib for reflection
2216 * only requests, like a common reflection only assembly
2218 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2219 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2222 len = strlen (aname->name);
2223 for (ext_index = 0; ext_index < 2; ext_index ++) {
2224 ext = ext_index == 0 ? ".dll" : ".exe";
2225 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2226 filename = g_strdup (aname->name);
2227 /* Don't try appending .dll/.exe if it already has one of those extensions */
2230 filename = g_strconcat (aname->name, ext, NULL);
2233 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2240 fullpath = g_build_filename (basedir, filename, NULL);
2241 result = mono_assembly_open_full (fullpath, status, refonly);
2244 result->in_gac = FALSE;
2250 result = load_in_path (filename, default_path, status, refonly);
2252 result->in_gac = FALSE;
2258 /* Try a postload search hook */
2259 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2265 * mono_assembly_load:
2266 * @aname: A MonoAssemblyName with the assembly name to load.
2267 * @basedir: A directory to look up the assembly at.
2268 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2270 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2271 * attempts to load the assembly from that directory before probing the standard locations.
2273 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2274 * value pointed by status is updated with an error code.
2277 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2279 return mono_assembly_load_full (aname, basedir, status, FALSE);
2283 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2286 MonoAssemblyName maped_aname;
2288 aname = mono_assembly_remap_version (aname, &maped_aname);
2290 mono_assemblies_lock ();
2291 res = search_loaded (aname, refonly);
2292 mono_assemblies_unlock ();
2298 * mono_assembly_loaded:
2299 * @aname: an assembly to look for.
2301 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2302 * a MonoAssembly that matches the MonoAssemblyName specified.
2305 mono_assembly_loaded (MonoAssemblyName *aname)
2307 return mono_assembly_loaded_full (aname, FALSE);
2311 * mono_assembly_close:
2312 * @assembly: the assembly to release.
2314 * This method releases a reference to the @assembly. The assembly is
2315 * only released when all the outstanding references to it are released.
2318 mono_assembly_close (MonoAssembly *assembly)
2321 g_return_if_fail (assembly != NULL);
2323 if (assembly == REFERENCE_MISSING)
2326 /* Might be 0 already */
2327 if (InterlockedDecrement (&assembly->ref_count) > 0)
2330 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2332 mono_assemblies_lock ();
2333 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2334 mono_assemblies_unlock ();
2336 if (assembly->image->references) {
2339 for (i = 0; assembly->image->references [i]; i++) {
2340 if (assembly->image->references [i])
2341 mono_assembly_close (assembly->image->references [i]);
2344 g_free (assembly->image->references);
2345 assembly->image->references = NULL;
2348 assembly->image->assembly = NULL;
2350 mono_image_close (assembly->image);
2352 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2353 MonoAssemblyName *fname = tmp->data;
2354 mono_assembly_name_free (fname);
2357 g_slist_free (assembly->friend_assembly_names);
2358 g_free (assembly->basedir);
2359 if (assembly->dynamic) {
2360 g_free ((char*)assembly->aname.culture);
2367 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2369 MonoImageOpenStatus status;
2372 module = mono_image_load_file_for_image (assembly->image, idx);
2374 mono_assembly_load_references (module, &status);
2380 mono_assembly_foreach (GFunc func, gpointer user_data)
2385 * We make a copy of the list to avoid calling the callback inside the
2386 * lock, which could lead to deadlocks.
2388 mono_assemblies_lock ();
2389 copy = g_list_copy (loaded_assemblies);
2390 mono_assemblies_unlock ();
2392 g_list_foreach (loaded_assemblies, func, user_data);
2398 * mono_assemblies_cleanup:
2400 * Free all resources used by this module.
2403 mono_assemblies_cleanup (void)
2407 DeleteCriticalSection (&assemblies_mutex);
2409 g_hash_table_destroy (assemblies_loading);
2410 g_hash_table_destroy (assemblies_refonly_loading);
2412 for (l = loaded_assembly_bindings; l; l = l->next) {
2413 MonoAssemblyBindingInfo *info = l->data;
2415 mono_assembly_binding_info_free (info);
2418 g_slist_free (loaded_assembly_bindings);
2420 free_assembly_load_hooks ();
2421 free_assembly_search_hooks ();
2422 free_assembly_preload_hooks ();
2426 * Holds the assembly of the application, for
2427 * System.Diagnostics.Process::MainModule
2429 static MonoAssembly *main_assembly=NULL;
2432 mono_assembly_set_main (MonoAssembly *assembly)
2434 main_assembly = assembly;
2438 * mono_assembly_get_main:
2440 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2443 mono_assembly_get_main (void)
2445 return (main_assembly);
2449 * mono_assembly_get_image:
2450 * @assembly: The assembly to retrieve the image from
2452 * Returns: the MonoImage associated with this assembly.
2455 mono_assembly_get_image (MonoAssembly *assembly)
2457 return assembly->image;
2461 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2463 bundles = assemblies;