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 gchar* token = g_malloc (8);
681 aname->public_key = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
682 len = mono_metadata_decode_blob_size (aname->public_key, (const char**)&aname->public_key);
684 mono_digest_get_public_token (token, aname->public_key, len);
685 encoded = encode_public_tok (token, 8);
686 g_strlcpy (aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
692 aname->public_key = NULL;
693 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
696 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
697 aname->public_key = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
700 aname->public_key = 0;
706 * mono_stringify_assembly_name:
707 * @aname: the assembly name.
709 * Convert @aname into its string format. The returned string is dynamically
710 * allocated and should be freed by the caller.
712 * Returns: a newly allocated string with a string representation of
716 mono_stringify_assembly_name (MonoAssemblyName *aname)
718 return g_strdup_printf (
719 "%s, Version=%d.%d.%d.%d, Culture=%s%s%s",
721 aname->major, aname->minor, aname->build, aname->revision,
722 aname->culture && *aname->culture? aname->culture: "neutral",
723 aname->public_key_token [0] ? ", PublicKeyToken=" : "",
724 aname->public_key_token [0] ? (char *)aname->public_key_token : "");
728 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
730 const gchar *public_tok;
733 public_tok = mono_metadata_blob_heap (image, key_index);
734 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
736 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
738 mono_digest_get_public_token (token, public_tok, len);
739 return encode_public_tok (token, 8);
742 return encode_public_tok (public_tok, len);
746 * mono_assembly_addref:
747 * @assemnly: the assembly to reference
749 * This routine increments the reference count on a MonoAssembly.
750 * The reference count is reduced every time the method mono_assembly_close() is
754 mono_assembly_addref (MonoAssembly *assembly)
756 InterlockedIncrement (&assembly->ref_count);
759 static MonoAssemblyName *
760 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
762 const MonoRuntimeInfo *current_runtime;
763 int pos, first, last;
765 if (aname->name == NULL) return aname;
766 current_runtime = mono_get_runtime_info ();
769 last = G_N_ELEMENTS (framework_assemblies) - 1;
771 while (first <= last) {
773 pos = first + (last - first) / 2;
774 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
776 const AssemblyVersionSet* vset;
777 int index = framework_assemblies[pos].version_set_index;
778 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
779 vset = ¤t_runtime->version_sets [index];
781 if (aname->major == vset->major && aname->minor == vset->minor &&
782 aname->build == vset->build && aname->revision == vset->revision)
785 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
786 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
787 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
789 aname->major, aname->minor, aname->build, aname->revision,
790 vset->major, vset->minor, vset->build, vset->revision
793 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
794 dest_aname->major = vset->major;
795 dest_aname->minor = vset->minor;
796 dest_aname->build = vset->build;
797 dest_aname->revision = vset->revision;
799 } else if (res < 0) {
809 * mono_assembly_get_assemblyref:
811 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
814 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
817 guint32 cols [MONO_ASSEMBLYREF_SIZE];
820 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
822 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
824 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
825 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
826 aname->hash_value = hash;
827 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
828 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
829 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
830 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
831 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
832 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
833 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
835 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
836 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
837 g_strlcpy (aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
840 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
845 mono_assembly_load_reference (MonoImage *image, int index)
847 MonoAssembly *reference;
848 MonoAssemblyName aname;
849 MonoImageOpenStatus status;
852 * image->references is shared between threads, so we need to access
853 * it inside a critical section.
855 mono_assemblies_lock ();
856 reference = image->references [index];
857 mono_assemblies_unlock ();
861 mono_assembly_get_assemblyref (image, index, &aname);
863 if (image->assembly->ref_only) {
864 /* We use the loaded corlib */
865 if (!strcmp (aname.name, "mscorlib"))
866 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
868 reference = mono_assembly_loaded_full (&aname, TRUE);
870 * Here we must advice that the error was due to
871 * a non loaded reference using the ReflectionOnly api
874 reference = REFERENCE_MISSING;
876 reference = mono_assembly_load (&aname, image->assembly->basedir, &status);
878 if (reference == NULL){
879 char *extra_msg = g_strdup ("");
881 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
882 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);
883 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
884 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
885 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
886 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
887 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
888 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
891 g_warning ("The following assembly referenced from %s could not be loaded:\n"
892 " Assembly: %s (assemblyref_index=%d)\n"
893 " Version: %d.%d.%d.%d\n"
894 " Public Key: %s\n%s",
895 image->name, aname.name, index,
896 aname.major, aname.minor, aname.build, aname.revision,
897 strlen(aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
901 mono_assemblies_lock ();
902 if (reference == NULL) {
903 /* Flag as not found */
904 reference = REFERENCE_MISSING;
907 if (!image->references [index]) {
908 if (reference != REFERENCE_MISSING){
909 mono_assembly_addref (reference);
910 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
911 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
913 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
914 image->assembly->aname.name, image->assembly);
917 image->references [index] = reference;
919 mono_assemblies_unlock ();
921 if (image->references [index] != reference) {
922 /* Somebody loaded it before us */
923 mono_assembly_close (reference);
928 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
933 *status = MONO_IMAGE_OK;
935 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
937 image->references = g_new0 (MonoAssembly *, t->rows + 1);
939 /* resolve assembly references for modules */
940 for (i = 0; i < image->module_count; i++){
941 if (image->modules [i]) {
942 image->modules [i]->assembly = image->assembly;
943 mono_assembly_load_references (image->modules [i], status);
948 typedef struct AssemblyLoadHook AssemblyLoadHook;
949 struct AssemblyLoadHook {
950 AssemblyLoadHook *next;
951 MonoAssemblyLoadFunc func;
955 AssemblyLoadHook *assembly_load_hook = NULL;
958 mono_assembly_invoke_load_hook (MonoAssembly *ass)
960 AssemblyLoadHook *hook;
962 for (hook = assembly_load_hook; hook; hook = hook->next) {
963 hook->func (ass, hook->user_data);
968 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
970 AssemblyLoadHook *hook;
972 g_return_if_fail (func != NULL);
974 hook = g_new0 (AssemblyLoadHook, 1);
976 hook->user_data = user_data;
977 hook->next = assembly_load_hook;
978 assembly_load_hook = hook;
982 free_assembly_load_hooks (void)
984 AssemblyLoadHook *hook, *next;
986 for (hook = assembly_load_hook; hook; hook = next) {
992 typedef struct AssemblySearchHook AssemblySearchHook;
993 struct AssemblySearchHook {
994 AssemblySearchHook *next;
995 MonoAssemblySearchFunc func;
1001 AssemblySearchHook *assembly_search_hook = NULL;
1003 static MonoAssembly*
1004 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
1006 AssemblySearchHook *hook;
1008 for (hook = assembly_search_hook; hook; hook = hook->next) {
1009 if ((hook->refonly == refonly) && (hook->postload == postload)) {
1010 MonoAssembly *ass = hook->func (aname, hook->user_data);
1020 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
1022 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
1026 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
1028 AssemblySearchHook *hook;
1030 g_return_if_fail (func != NULL);
1032 hook = g_new0 (AssemblySearchHook, 1);
1034 hook->user_data = user_data;
1035 hook->refonly = refonly;
1036 hook->postload = postload;
1037 hook->next = assembly_search_hook;
1038 assembly_search_hook = hook;
1042 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1044 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1048 free_assembly_search_hooks (void)
1050 AssemblySearchHook *hook, *next;
1052 for (hook = assembly_search_hook; hook; hook = next) {
1059 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1061 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1065 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1067 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1071 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1073 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1076 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1077 struct AssemblyPreLoadHook {
1078 AssemblyPreLoadHook *next;
1079 MonoAssemblyPreLoadFunc func;
1083 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1084 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1086 static MonoAssembly *
1087 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1089 AssemblyPreLoadHook *hook;
1090 MonoAssembly *assembly;
1092 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1093 assembly = hook->func (aname, assemblies_path, hook->user_data);
1094 if (assembly != NULL)
1101 static MonoAssembly *
1102 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1104 AssemblyPreLoadHook *hook;
1105 MonoAssembly *assembly;
1107 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1108 assembly = hook->func (aname, assemblies_path, hook->user_data);
1109 if (assembly != NULL)
1117 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1119 AssemblyPreLoadHook *hook;
1121 g_return_if_fail (func != NULL);
1123 hook = g_new0 (AssemblyPreLoadHook, 1);
1125 hook->user_data = user_data;
1126 hook->next = assembly_preload_hook;
1127 assembly_preload_hook = hook;
1131 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1133 AssemblyPreLoadHook *hook;
1135 g_return_if_fail (func != NULL);
1137 hook = g_new0 (AssemblyPreLoadHook, 1);
1139 hook->user_data = user_data;
1140 hook->next = assembly_refonly_preload_hook;
1141 assembly_refonly_preload_hook = hook;
1145 free_assembly_preload_hooks (void)
1147 AssemblyPreLoadHook *hook, *next;
1149 for (hook = assembly_preload_hook; hook; hook = next) {
1154 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1161 absolute_dir (const gchar *filename)
1172 if (g_path_is_absolute (filename))
1173 return g_path_get_dirname (filename);
1175 cwd = g_get_current_dir ();
1176 mixed = g_build_filename (cwd, filename, NULL);
1177 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1182 for (i = 0; (part = parts [i]) != NULL; i++) {
1183 if (!strcmp (part, "."))
1186 if (!strcmp (part, "..")) {
1187 if (list && list->next) /* Don't remove root */
1188 list = g_list_delete_link (list, list);
1190 list = g_list_prepend (list, part);
1194 result = g_string_new ("");
1195 list = g_list_reverse (list);
1197 /* Ignores last data pointer, which should be the filename */
1198 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1200 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1205 g_string_free (result, FALSE);
1210 return g_strdup (".");
1217 * mono_assembly_open_from_bundle:
1218 * @filename: Filename requested
1219 * @status: return value
1221 * This routine tries to open the assembly specified by `filename' from the
1222 * defined bundles, if found, returns the MonoImage for it, if not found
1226 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1230 MonoImage *image = NULL;
1233 * we do a very simple search for bundled assemblies: it's not a general
1234 * purpose assembly loading mechanism.
1240 name = g_path_get_basename (filename);
1242 mono_assemblies_lock ();
1243 for (i = 0; !image && bundles [i]; ++i) {
1244 if (strcmp (bundles [i]->name, name) == 0) {
1245 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1249 mono_assemblies_unlock ();
1252 mono_image_addref (image);
1259 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1263 MonoImageOpenStatus def_status;
1266 g_return_val_if_fail (filename != NULL, NULL);
1269 status = &def_status;
1270 *status = MONO_IMAGE_OK;
1272 if (strncmp (filename, "file://", 7) == 0) {
1273 GError *error = NULL;
1274 gchar *uri = (gchar *) filename;
1278 * MS allows file://c:/... and fails on file://localhost/c:/...
1279 * They also throw an IndexOutOfRangeException if "file://"
1282 uri = g_strdup_printf ("file:///%s", uri + 7);
1285 uri = mono_escape_uri_string (tmpuri);
1286 fname = g_filename_from_uri (uri, NULL, &error);
1289 if (tmpuri != filename)
1292 if (error != NULL) {
1293 g_warning ("%s\n", error->message);
1294 g_error_free (error);
1295 fname = g_strdup (filename);
1298 fname = g_strdup (filename);
1301 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1302 "Assembly Loader probing location: '%s'.", filename);
1305 if (bundles != NULL)
1306 image = mono_assembly_open_from_bundle (fname, status, refonly);
1309 mono_assemblies_lock ();
1310 image = mono_image_open_full (fname, status, refonly);
1311 mono_assemblies_unlock ();
1315 if (*status == MONO_IMAGE_OK)
1316 *status = MONO_IMAGE_ERROR_ERRNO;
1321 if (image->assembly) {
1322 /* Already loaded by another appdomain */
1323 mono_assembly_invoke_load_hook (image->assembly);
1324 mono_image_close (image);
1326 return image->assembly;
1329 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1332 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1333 "Assembly Loader loaded assembly from location: '%s'.", filename);
1335 mono_config_for_assembly (ass->image);
1338 /* Clear the reference added by mono_image_open */
1339 mono_image_close (image);
1347 * load_friend_assemblies:
1350 * Load the list of friend assemblies that are allowed to access
1351 * the assembly's internal types and members. They are stored as assembly
1352 * names in custom attributes.
1355 load_friend_assemblies (MonoAssembly* ass)
1358 MonoCustomAttrInfo* attrs = mono_custom_attrs_from_assembly (ass);
1361 for (i = 0; i < attrs->num_attrs; ++i) {
1362 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1363 MonoAssemblyName *aname;
1366 /* Do some sanity checking */
1367 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1369 if (attr->data_size < 4)
1372 /* 0xFF means null string, see custom attr format */
1373 if (data [0] != 1 || data [1] != 0 || data [2] == 0xFF)
1375 slen = mono_metadata_decode_value (data + 2, &data);
1376 aname = g_new0 (MonoAssemblyName, 1);
1377 /*g_print ("friend ass: %s\n", data);*/
1378 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL)) {
1379 ass->friend_assembly_names = g_slist_prepend (ass->friend_assembly_names, aname);
1384 mono_custom_attrs_free (attrs);
1388 * mono_assembly_open:
1389 * @filename: Opens the assembly pointed out by this name
1390 * @status: where a status code can be returned
1392 * mono_assembly_open opens the PE-image pointed by @filename, and
1393 * loads any external assemblies referenced by it.
1395 * Return: a pointer to the MonoAssembly if @filename contains a valid
1396 * assembly or NULL on error. Details about the error are stored in the
1400 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1402 return mono_assembly_open_full (filename, status, FALSE);
1406 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1407 MonoImageOpenStatus *status, gboolean refonly)
1409 MonoAssembly *ass, *ass2;
1412 GHashTable *ass_loading;
1414 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1415 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1416 *status = MONO_IMAGE_IMAGE_INVALID;
1421 #if defined (PLATFORM_WIN32)
1426 tmp_fn = g_strdup (fname);
1427 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1428 if (tmp_fn [i] == '/')
1432 base_dir = absolute_dir (tmp_fn);
1436 base_dir = absolute_dir (fname);
1440 * To avoid deadlocks and scalability problems, we load assemblies outside
1441 * the assembly lock. This means that multiple threads might try to load
1442 * the same assembly at the same time. The first one to load it completely
1443 * "wins", the other threads free their copy and use the one loaded by
1444 * the winning thread.
1448 * Create assembly struct, and enter it into the assembly cache
1450 ass = g_new0 (MonoAssembly, 1);
1451 ass->basedir = base_dir;
1452 ass->ref_only = refonly;
1455 /* Add a non-temporary reference because of ass->image */
1456 mono_image_addref (image);
1458 mono_assembly_fill_assembly_name (image, &ass->aname);
1460 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);
1463 * Atomically search the loaded list and add ourselves to it if necessary.
1465 mono_assemblies_lock ();
1466 if (ass->aname.name) {
1467 /* avoid loading the same assembly twice for now... */
1468 ass2 = search_loaded (&ass->aname, refonly);
1472 mono_image_close (image);
1473 *status = MONO_IMAGE_OK;
1474 mono_assemblies_unlock ();
1478 ass_loading = refonly ? assemblies_refonly_loading : assemblies_loading;
1479 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1480 loading = g_list_prepend (loading, ass);
1481 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1482 mono_assemblies_unlock ();
1484 g_assert (image->assembly == NULL);
1485 image->assembly = ass;
1487 mono_assembly_load_references (image, status);
1489 mono_assemblies_lock ();
1491 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1492 loading = g_list_remove (loading, ass);
1493 if (loading == NULL)
1494 /* Prevent memory leaks */
1495 g_hash_table_remove (ass_loading, (gpointer)GetCurrentThreadId ());
1497 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1498 if (*status != MONO_IMAGE_OK) {
1499 mono_assemblies_unlock ();
1500 mono_assembly_close (ass);
1504 if (ass->aname.name) {
1505 ass2 = search_loaded (&ass->aname, refonly);
1507 /* Somebody else has loaded the assembly before us */
1508 mono_assemblies_unlock ();
1509 mono_assembly_close (ass);
1514 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1515 if (mono_defaults.internals_visible_class)
1516 load_friend_assemblies (ass);
1517 mono_assemblies_unlock ();
1519 mono_assembly_invoke_load_hook (ass);
1525 mono_assembly_load_from (MonoImage *image, const char *fname,
1526 MonoImageOpenStatus *status)
1528 return mono_assembly_load_from_full (image, fname, status, FALSE);
1532 * mono_assembly_name_free:
1533 * @aname: assembly name to free
1535 * Frees the provided assembly name object.
1536 * (it does not frees the object itself, only the name members).
1539 mono_assembly_name_free (MonoAssemblyName *aname)
1544 g_free ((void *) aname->name);
1545 g_free ((void *) aname->culture);
1546 g_free ((void *) aname->hash_value);
1550 parse_public_key (const gchar *key, gchar** pubkey)
1553 gchar header [16], val, *arr;
1554 gint i, j, offset, bitlen, keylen, pkeylen;
1556 keylen = strlen (key) >> 1;
1560 val = g_ascii_xdigit_value (key [0]) << 4;
1561 val |= g_ascii_xdigit_value (key [1]);
1566 val = g_ascii_xdigit_value (key [24]);
1567 val |= g_ascii_xdigit_value (key [25]);
1579 /* We need the first 16 bytes
1580 * to check whether this key is valid or not */
1581 pkeylen = strlen (pkey) >> 1;
1585 for (i = 0, j = 0; i < 16; i++) {
1586 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1587 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1590 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1591 header [1] != 0x02 || /* Version (0x02) */
1592 header [2] != 0x00 || /* Reserved (word) */
1593 header [3] != 0x00 ||
1594 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1597 /* Based on this length, we _should_ be able to know if the length is right */
1598 bitlen = read32 (header + 12) >> 3;
1599 if ((bitlen + 16 + 4) != pkeylen)
1602 /* Encode the size of the blob */
1604 if (keylen <= 127) {
1605 arr = g_malloc (keylen + 1);
1606 arr [offset++] = keylen;
1608 arr = g_malloc (keylen + 2);
1609 arr [offset++] = 0x80; /* 10bs */
1610 arr [offset++] = keylen;
1613 for (i = offset, j = 0; i < keylen + offset; i++) {
1614 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1615 arr [i] |= g_ascii_xdigit_value (key [j++]);
1624 build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, MonoAssemblyName *aname, gboolean save_public_key)
1626 gint major, minor, build, revision;
1629 gchar *pkey, *pkeyptr, *encoded, tok [8];
1631 memset (aname, 0, sizeof (MonoAssemblyName));
1634 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1635 if (version_parts < 2 || version_parts > 4)
1638 /* FIXME: we should set build & revision to -1 (instead of 0)
1639 if these are not set in the version string. That way, later on,
1640 we can still determine if these were specified. */
1641 aname->major = major;
1642 aname->minor = minor;
1643 if (version_parts >= 3)
1644 aname->build = build;
1647 if (version_parts == 4)
1648 aname->revision = revision;
1650 aname->revision = 0;
1653 aname->name = g_strdup (name);
1656 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1657 aname->culture = g_strdup ("");
1659 aname->culture = g_strdup (culture);
1662 if (token && strncmp (token, "null", 4) != 0) {
1663 char *lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1664 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1668 if (key && strncmp (key, "null", 4) != 0) {
1669 if (!parse_public_key (key, &pkey)) {
1670 mono_assembly_name_free (aname);
1674 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1675 // We also need to generate the key token
1676 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1677 encoded = encode_public_tok ((guchar*) tok, 8);
1678 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1681 if (save_public_key)
1682 aname->public_key = (guint8*) pkey;
1691 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1696 parts = g_strsplit (dirname, "_", 3);
1697 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1702 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, aname, FALSE);
1708 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined)
1711 gchar *version = NULL;
1712 gchar *culture = NULL;
1713 gchar *token = NULL;
1719 gboolean version_defined;
1721 if (!is_version_defined)
1722 is_version_defined = &version_defined;
1723 *is_version_defined = FALSE;
1725 parts = tmp = g_strsplit (name, ",", 4);
1726 if (!tmp || !*tmp) {
1731 dllname = g_strstrip (*tmp);
1736 value = g_strstrip (*tmp);
1737 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1738 *is_version_defined = TRUE;
1739 version = g_strstrip (value + 8);
1744 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1745 culture = g_strstrip (value + 8);
1750 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1751 token = g_strstrip (value + 15);
1756 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1757 key = g_strstrip (value + 10);
1766 res = build_assembly_name (dllname, version, culture, token, key, aname, save_public_key);
1772 * mono_assembly_name_parse:
1773 * @name: name to parse
1774 * @aname: the destination assembly name
1776 * Parses an assembly qualified type name and assigns the name,
1777 * version, culture and token to the provided assembly name object.
1779 * Returns: true if the name could be parsed.
1782 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1784 return mono_assembly_name_parse_full (name, aname, FALSE, NULL);
1787 static MonoAssembly*
1788 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1790 gchar *fullpath = NULL;
1792 const char* direntry;
1793 MonoAssemblyName gac_aname;
1794 gint major=-1, minor=0, build=0, revision=0;
1795 gboolean exact_version;
1797 dirhandle = g_dir_open (basepath, 0, NULL);
1801 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1803 while ((direntry = g_dir_read_name (dirhandle))) {
1804 gboolean match = TRUE;
1806 parse_assembly_directory_name (aname->name, direntry, &gac_aname);
1808 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1811 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1812 strcmp ((char*)aname->public_key_token, (char*)gac_aname.public_key_token) != 0)
1816 if (exact_version) {
1817 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1818 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1820 else if (gac_aname.major < major)
1822 else if (gac_aname.major == major) {
1823 if (gac_aname.minor < minor)
1825 else if (gac_aname.minor == minor) {
1826 if (gac_aname.build < build)
1828 else if (gac_aname.build == build && gac_aname.revision <= revision)
1835 major = gac_aname.major;
1836 minor = gac_aname.minor;
1837 build = gac_aname.build;
1838 revision = gac_aname.revision;
1840 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1843 mono_assembly_name_free (&gac_aname);
1846 g_dir_close (dirhandle);
1848 if (fullpath == NULL)
1851 MonoAssembly *res = mono_assembly_open (fullpath, status);
1858 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1861 MonoAssemblyName *aname, base_name, maped_aname;
1862 gchar *fullname, *gacpath;
1865 memset (&base_name, 0, sizeof (MonoAssemblyName));
1868 if (!mono_assembly_name_parse (name, aname))
1872 * If no specific version has been requested, make sure we load the
1873 * correct version for system assemblies.
1875 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1876 aname = mono_assembly_remap_version (aname, &maped_aname);
1878 res = mono_assembly_loaded (aname);
1880 mono_assembly_name_free (aname);
1884 res = invoke_assembly_preload_hook (aname, assemblies_path);
1886 res->in_gac = FALSE;
1887 mono_assembly_name_free (aname);
1891 fullname = g_strdup_printf ("%s.dll", aname->name);
1893 if (extra_gac_paths) {
1894 paths = extra_gac_paths;
1895 while (!res && *paths) {
1896 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1897 res = probe_for_partial_name (gacpath, fullname, aname, status);
1906 mono_assembly_name_free (aname);
1910 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1911 res = probe_for_partial_name (gacpath, fullname, aname, status);
1918 mono_assembly_name_free (aname);
1924 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
1927 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
1931 if (strstr (aname->name, ".dll")) {
1932 len = strlen (aname->name) - 4;
1933 name = g_malloc (len);
1934 strncpy (name, aname->name, len);
1936 name = g_strdup (aname->name);
1938 if (aname->culture) {
1939 culture = g_strdup (aname->culture);
1940 g_strdown (culture);
1942 culture = g_strdup ("");
1944 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
1945 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
1949 filename = g_strconcat (pname, ".dll", NULL);
1950 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
1956 if (extra_gac_paths) {
1957 paths = extra_gac_paths;
1958 while (!image && *paths) {
1959 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
1960 "lib", "mono", "gac", subpath, NULL);
1961 image = mono_image_open (fullpath, NULL);
1972 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
1973 "mono", "gac", subpath, NULL);
1974 image = mono_image_open (fullpath, NULL);
1981 static MonoAssemblyName*
1982 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
1984 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
1985 dest_name->major = info->new_version.major;
1986 dest_name->minor = info->new_version.minor;
1987 dest_name->build = info->new_version.build;
1988 dest_name->revision = info->new_version.revision;
1993 /* LOCKING: Assumes that we are already locked */
1994 static MonoAssemblyBindingInfo*
1995 search_binding_loaded (MonoAssemblyName *aname)
1999 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2000 MonoAssemblyBindingInfo *info = tmp->data;
2001 if (assembly_binding_maps_name (info, aname))
2008 static MonoAssemblyName*
2009 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2011 MonoAssemblyBindingInfo *info, *info2;
2014 if (aname->public_key_token [0] == 0)
2017 mono_loader_lock ();
2018 info = search_binding_loaded (aname);
2019 mono_loader_unlock ();
2021 if (!check_policy_versions (info, aname))
2024 mono_assembly_bind_version (info, aname, dest_name);
2028 info = g_new0 (MonoAssemblyBindingInfo, 1);
2029 info->major = aname->major;
2030 info->minor = aname->minor;
2032 ppimage = mono_assembly_load_publisher_policy (aname);
2034 get_publisher_policy_info (ppimage, aname, info);
2035 mono_image_close (ppimage);
2038 /* Define default error value if needed */
2039 if (!info->is_valid) {
2040 info->name = g_strdup (aname->name);
2041 info->culture = g_strdup (aname->culture);
2042 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2045 mono_loader_lock ();
2046 info2 = search_binding_loaded (aname);
2048 /* This binding was added by another thread
2050 mono_assembly_binding_info_free (info);
2055 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2057 mono_loader_unlock ();
2059 if (!info->is_valid || !check_policy_versions (info, aname))
2062 mono_assembly_bind_version (info, aname, dest_name);
2067 * mono_assembly_load_from_gac
2069 * @aname: The assembly name object
2071 static MonoAssembly*
2072 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2074 MonoAssembly *result = NULL;
2075 gchar *name, *version, *culture, *fullpath, *subpath;
2079 if (aname->public_key_token [0] == 0) {
2083 if (strstr (aname->name, ".dll")) {
2084 len = strlen (filename) - 4;
2085 name = g_malloc (len);
2086 strncpy (name, aname->name, len);
2088 name = g_strdup (aname->name);
2091 if (aname->culture) {
2092 culture = g_strdup (aname->culture);
2093 g_strdown (culture);
2095 culture = g_strdup ("");
2098 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2099 aname->minor, aname->build, aname->revision,
2100 culture, aname->public_key_token);
2102 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2107 if (extra_gac_paths) {
2108 paths = extra_gac_paths;
2109 while (!result && *paths) {
2110 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2111 result = mono_assembly_open_full (fullpath, status, refonly);
2118 result->in_gac = TRUE;
2123 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2124 "mono", "gac", subpath, NULL);
2125 result = mono_assembly_open_full (fullpath, status, refonly);
2129 result->in_gac = TRUE;
2138 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2143 /* g_print ("corlib already loaded\n"); */
2147 if (assemblies_path) {
2148 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2153 /* Load corlib from mono/<version> */
2155 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2156 if (assemblies_path) {
2157 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2159 g_free (corlib_file);
2163 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2164 g_free (corlib_file);
2170 * mono_assembly_load_full:
2171 * @aname: A MonoAssemblyName with the assembly name to load.
2172 * @basedir: A directory to look up the assembly at.
2173 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2174 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2176 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2177 * attempts to load the assembly from that directory before probing the standard locations.
2179 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2180 * assembly binding takes place.
2182 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2183 * value pointed by status is updated with an error code.
2186 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2188 MonoAssembly *result;
2189 char *fullpath, *filename;
2190 MonoAssemblyName maped_aname, maped_name_pp;
2195 aname = mono_assembly_remap_version (aname, &maped_aname);
2197 /* Reflection only assemblies don't get assembly binding */
2199 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2201 result = mono_assembly_loaded_full (aname, refonly);
2205 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2207 result->in_gac = FALSE;
2211 /* Currently we retrieve the loaded corlib for reflection
2212 * only requests, like a common reflection only assembly
2214 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2215 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2218 len = strlen (aname->name);
2219 for (ext_index = 0; ext_index < 2; ext_index ++) {
2220 ext = ext_index == 0 ? ".dll" : ".exe";
2221 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2222 filename = g_strdup (aname->name);
2223 /* Don't try appending .dll/.exe if it already has one of those extensions */
2226 filename = g_strconcat (aname->name, ext, NULL);
2229 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2236 fullpath = g_build_filename (basedir, filename, NULL);
2237 result = mono_assembly_open_full (fullpath, status, refonly);
2240 result->in_gac = FALSE;
2246 result = load_in_path (filename, default_path, status, refonly);
2248 result->in_gac = FALSE;
2254 /* Try a postload search hook */
2255 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2261 * mono_assembly_load:
2262 * @aname: A MonoAssemblyName with the assembly name to load.
2263 * @basedir: A directory to look up the assembly at.
2264 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2266 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2267 * attempts to load the assembly from that directory before probing the standard locations.
2269 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2270 * value pointed by status is updated with an error code.
2273 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2275 return mono_assembly_load_full (aname, basedir, status, FALSE);
2279 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2282 MonoAssemblyName maped_aname;
2284 aname = mono_assembly_remap_version (aname, &maped_aname);
2286 mono_assemblies_lock ();
2287 res = search_loaded (aname, refonly);
2288 mono_assemblies_unlock ();
2294 * mono_assembly_loaded:
2295 * @aname: an assembly to look for.
2297 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2298 * a MonoAssembly that matches the MonoAssemblyName specified.
2301 mono_assembly_loaded (MonoAssemblyName *aname)
2303 return mono_assembly_loaded_full (aname, FALSE);
2307 * mono_assembly_close:
2308 * @assembly: the assembly to release.
2310 * This method releases a reference to the @assembly. The assembly is
2311 * only released when all the outstanding references to it are released.
2314 mono_assembly_close (MonoAssembly *assembly)
2317 g_return_if_fail (assembly != NULL);
2319 if (assembly == REFERENCE_MISSING)
2322 /* Might be 0 already */
2323 if (InterlockedDecrement (&assembly->ref_count) > 0)
2326 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2328 mono_assemblies_lock ();
2329 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2330 mono_assemblies_unlock ();
2332 if (assembly->image->references) {
2335 for (i = 0; assembly->image->references [i]; i++) {
2336 if (assembly->image->references [i])
2337 mono_assembly_close (assembly->image->references [i]);
2340 g_free (assembly->image->references);
2341 assembly->image->references = NULL;
2344 assembly->image->assembly = NULL;
2346 mono_image_close (assembly->image);
2348 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2349 MonoAssemblyName *fname = tmp->data;
2350 mono_assembly_name_free (fname);
2353 g_slist_free (assembly->friend_assembly_names);
2354 g_free (assembly->basedir);
2355 if (assembly->dynamic) {
2356 g_free ((char*)assembly->aname.culture);
2363 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2365 MonoImageOpenStatus status;
2368 module = mono_image_load_file_for_image (assembly->image, idx);
2370 mono_assembly_load_references (module, &status);
2376 mono_assembly_foreach (GFunc func, gpointer user_data)
2381 * We make a copy of the list to avoid calling the callback inside the
2382 * lock, which could lead to deadlocks.
2384 mono_assemblies_lock ();
2385 copy = g_list_copy (loaded_assemblies);
2386 mono_assemblies_unlock ();
2388 g_list_foreach (loaded_assemblies, func, user_data);
2394 * mono_assemblies_cleanup:
2396 * Free all resources used by this module.
2399 mono_assemblies_cleanup (void)
2403 DeleteCriticalSection (&assemblies_mutex);
2405 g_hash_table_destroy (assemblies_loading);
2406 g_hash_table_destroy (assemblies_refonly_loading);
2408 for (l = loaded_assembly_bindings; l; l = l->next) {
2409 MonoAssemblyBindingInfo *info = l->data;
2411 mono_assembly_binding_info_free (info);
2414 g_slist_free (loaded_assembly_bindings);
2416 free_assembly_load_hooks ();
2417 free_assembly_search_hooks ();
2418 free_assembly_preload_hooks ();
2422 * Holds the assembly of the application, for
2423 * System.Diagnostics.Process::MainModule
2425 static MonoAssembly *main_assembly=NULL;
2428 mono_assembly_set_main (MonoAssembly *assembly)
2430 main_assembly = assembly;
2434 * mono_assembly_get_main:
2436 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2439 mono_assembly_get_main (void)
2441 return (main_assembly);
2445 * mono_assembly_get_image:
2446 * @assembly: The assembly to retrieve the image from
2448 * Returns: the MonoImage associated with this assembly.
2451 mono_assembly_get_image (MonoAssembly *assembly)
2453 return assembly->image;
2457 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2459 bundles = assemblies;