2 * assembly.c: Routines for loading assemblies.
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001 Ximian, Inc. http://www.ximian.com
18 #include "rawbuffer.h"
19 #include "object-internals.h"
20 #include <mono/metadata/loader.h>
21 #include <mono/metadata/tabledefs.h>
22 #include <mono/metadata/metadata-internals.h>
23 #include <mono/metadata/profiler-private.h>
24 #include <mono/metadata/class-internals.h>
25 #include <mono/metadata/domain-internals.h>
26 #include <mono/metadata/mono-endian.h>
27 #include <mono/metadata/mono-debug.h>
28 #include <mono/io-layer/io-layer.h>
29 #include <mono/utils/mono-uri.h>
30 #include <mono/metadata/mono-config.h>
31 #include <mono/utils/mono-digest.h>
32 #include <mono/utils/mono-logger.h>
33 #include <mono/metadata/reflection.h>
34 #include <mono/metadata/coree.h>
36 #ifndef PLATFORM_WIN32
37 #include <sys/types.h>
42 /* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
44 const char* assembly_name;
45 guint8 version_set_index;
48 /* the default search path is empty, the first slot is replaced with the computed value */
55 /* Contains the list of directories to be searched for assemblies (MONO_PATH) */
56 static char **assemblies_path = NULL;
58 /* Contains the list of directories that point to auxiliary GACs */
59 static char **extra_gac_paths = NULL;
61 /* The list of system assemblies what will be remapped to the running
62 * runtime version. WARNING: this list must be sorted.
64 static const AssemblyVersionMap framework_assemblies [] = {
66 {"Commons.Xml.Relaxng", 0},
73 {"Microsoft.VisualBasic", 1},
74 {"Microsoft.VisualC", 1},
76 {"Mono.CompilerServices.SymbolWriter", 0},
78 {"Mono.Data.SybaseClient", 0},
80 {"Mono.Data.TdsClient", 0},
81 {"Mono.GetOptions", 0},
85 {"Mono.Security.Win32", 0},
87 {"Novell.Directory.Ldap", 0},
91 {"System.Configuration.Install", 0},
93 {"System.Data.OracleClient", 0},
94 {"System.Data.SqlXml", 0},
96 {"System.DirectoryServices", 0},
97 {"System.Drawing", 0},
98 {"System.Drawing.Design", 0},
99 {"System.EnterpriseServices", 0},
100 {"System.Management", 0},
101 {"System.Messaging", 0},
102 {"System.Runtime.Remoting", 0},
103 {"System.Runtime.Serialization.Formatters.Soap", 0},
104 {"System.Security", 0},
105 {"System.ServiceProcess", 0},
107 {"System.Web.Mobile", 0},
108 {"System.Web.Services", 0},
109 {"System.Windows.Forms", 0},
115 * keeps track of loaded assemblies
117 static GList *loaded_assemblies = NULL;
118 static MonoAssembly *corlib;
120 /* This protects loaded_assemblies and image->references */
121 #define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
122 #define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
123 static CRITICAL_SECTION assemblies_mutex;
125 /* If defined, points to the bundled assembly information */
126 const MonoBundledAssembly **bundles;
128 /* Loaded assembly binding info */
129 static GSList *loaded_assembly_bindings = NULL;
132 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
135 encode_public_tok (const guchar *token, gint32 len)
137 const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
141 res = g_malloc (len * 2 + 1);
142 for (i = 0; i < len; i++) {
143 res [i * 2] = allowed [token [i] >> 4];
144 res [i * 2 + 1] = allowed [token [i] & 0xF];
151 * mono_public_tokens_are_equal:
152 * @pubt1: first public key token
153 * @pubt2: second public key token
155 * Compare two public key tokens and return #TRUE is they are equal and #FALSE
159 mono_public_tokens_are_equal (const unsigned char *pubt1, const unsigned char *pubt2)
161 return g_strcasecmp ((char*)pubt1, (char*)pubt2) == 0;
165 check_path_env (void)
168 char **splitted, **dest;
170 path = g_getenv ("MONO_PATH");
174 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
176 g_strfreev (assemblies_path);
177 assemblies_path = dest = splitted;
185 if (g_getenv ("MONO_DEBUG") == NULL)
189 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
190 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
197 check_extra_gac_path_env (void) {
199 char **splitted, **dest;
201 path = g_getenv ("MONO_GAC_PREFIX");
205 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
207 g_strfreev (extra_gac_paths);
208 extra_gac_paths = dest = splitted;
216 if (g_getenv ("MONO_DEBUG") == NULL)
220 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
221 g_warning ("'%s' in MONO_GAC_PATH doesn't exist or has wrong permissions.", *splitted);
228 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
230 if (strcmp (info->name, aname->name))
233 if (info->major != aname->major || info->minor != aname->minor)
236 if ((info->culture != NULL) != (aname->culture != NULL))
239 if (info->culture && strcmp (info->culture, aname->culture))
242 if (!mono_public_tokens_are_equal (info->public_key_token, aname->public_key_token))
249 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
252 g_free (info->culture);
256 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
259 guint32 cols [MONO_MANIFEST_SIZE];
260 const gchar *filename;
261 gchar *subpath, *fullpath;
263 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
264 /* MS Impl. accepts policy assemblies with more than
265 * one manifest resource, and only takes the first one */
267 binding_info->is_valid = FALSE;
271 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
272 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
273 binding_info->is_valid = FALSE;
277 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
278 g_assert (filename != NULL);
280 subpath = g_path_get_dirname (image->name);
281 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
282 mono_config_parse_publisher_policy (fullpath, binding_info);
286 /* Define the optional elements/attributes before checking */
287 if (!binding_info->culture)
288 binding_info->culture = g_strdup ("");
290 /* Check that the most important elements/attributes exist */
291 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
292 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
293 mono_assembly_binding_info_free (binding_info);
294 binding_info->is_valid = FALSE;
298 binding_info->is_valid = TRUE;
302 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
304 if (v->major > aname->major)
306 else if (v->major < aname->major)
309 if (v->minor > aname->minor)
311 else if (v->minor < aname->minor)
314 if (v->build > aname->build)
316 else if (v->build < aname->build)
319 if (v->revision > aname->revision)
321 else if (v->revision < aname->revision)
328 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
333 /* If has_old_version_top doesn't exist, we don't have an interval */
334 if (!info->has_old_version_top) {
335 if (compare_versions (&info->old_version_bottom, name) == 0)
341 /* Check that the version defined by name is valid for the interval */
342 if (compare_versions (&info->old_version_top, name) < 0)
345 /* We should be greater or equal than the small version */
346 if (compare_versions (&info->old_version_bottom, name) > 0)
353 * mono_assembly_names_equal:
355 * @r: second assembly.
357 * Compares two MonoAssemblyNames and returns whether they are equal.
359 * This compares the names, the cultures, the release version and their
362 * Returns: TRUE if both assembly names are equal.
365 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
367 if (!l->name || !r->name)
370 if (strcmp (l->name, r->name))
373 if (l->culture && r->culture && strcmp (l->culture, r->culture))
376 if (l->major != r->major || l->minor != r->minor ||
377 l->build != r->build || l->revision != r->revision)
378 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)))
381 if (!l->public_key_token [0] || !r->public_key_token [0])
384 if (!mono_public_tokens_are_equal (l->public_key_token, r->public_key_token))
391 search_loaded (MonoAssemblyName* aname, gboolean refonly)
395 ass = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
402 static MonoAssembly *
403 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
407 MonoAssembly *result;
409 for (i = 0; search_path [i]; ++i) {
410 fullpath = g_build_filename (search_path [i], basename, NULL);
411 result = mono_assembly_open_full (fullpath, status, refonly);
420 * mono_assembly_setrootdir:
421 * @root_dir: The pathname of the root directory where we will locate assemblies
423 * This routine sets the internal default root directory for looking up
426 * This is used by Windows installations to compute dynamically the
427 * place where the Mono assemblies are located.
431 mono_assembly_setrootdir (const char *root_dir)
434 * Override the MONO_ASSEMBLIES directory configured at compile time.
436 /* Leak if called more than once */
437 default_path [0] = g_strdup (root_dir);
441 * mono_assembly_getrootdir:
443 * Obtains the root directory used for looking up assemblies.
445 * Returns: a string with the directory, this string should not be freed.
447 G_CONST_RETURN gchar *
448 mono_assembly_getrootdir (void)
450 return default_path [0];
455 * @assembly_dir: the base directory for assemblies
456 * @config_dir: the base directory for configuration files
458 * This routine is used internally and by developers embedding
459 * the runtime into their own applications.
461 * There are a number of cases to consider: Mono as a system-installed
462 * package that is available on the location preconfigured or Mono in
463 * a relocated location.
465 * If you are using a system-installed Mono, you can pass NULL
466 * to both parameters. If you are not, you should compute both
467 * directory values and call this routine.
469 * The values for a given PREFIX are:
471 * assembly_dir: PREFIX/lib
472 * config_dir: PREFIX/etc
474 * Notice that embedders that use Mono in a relocated way must
475 * compute the location at runtime, as they will be in control
476 * of where Mono is installed.
479 mono_set_dirs (const char *assembly_dir, const char *config_dir)
481 #if defined (MONO_ASSEMBLIES)
482 if (assembly_dir == NULL)
483 assembly_dir = MONO_ASSEMBLIES;
485 #if defined (MONO_CFG_DIR)
486 if (config_dir == NULL)
487 config_dir = MONO_CFG_DIR;
489 mono_assembly_setrootdir (assembly_dir);
490 mono_set_config_dir (config_dir);
493 #ifndef PLATFORM_WIN32
496 compute_base (char *path)
498 char *p = rindex (path, '/');
502 /* Not a well known Mono executable, we are embedded, cant guess the base */
503 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
507 p = rindex (path, '/');
511 if (strcmp (p, "/bin") != 0)
520 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
527 char *config, *lib, *mono;
531 * Only /usr prefix is treated specially
533 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
538 config = g_build_filename (base, "etc", NULL);
539 lib = g_build_filename (base, "lib", NULL);
540 mono = g_build_filename (lib, "mono/1.0", NULL);
541 if (stat (mono, &buf) == -1)
544 mono_set_dirs (lib, config);
552 #endif /* PLATFORM_WIN32 */
557 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
558 * this auto-detects the prefix where Mono was installed.
561 mono_set_rootdir (void)
563 #ifdef PLATFORM_WIN32
564 gchar *bindir, *installdir, *root, *name, *config;
566 name = mono_get_module_file_name (mono_module_handle);
567 bindir = g_path_get_dirname (name);
568 installdir = g_path_get_dirname (bindir);
569 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
571 config = g_build_filename (root, "..", "etc", NULL);
572 mono_set_dirs (root, config);
585 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
593 /* Solaris 10 style */
594 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
595 s = readlink (str, buf, sizeof (buf)-1);
607 * mono_assemblies_init:
609 * Initialize global variables used by this module.
612 mono_assemblies_init (void)
615 * Initialize our internal paths if we have not been initialized yet.
616 * This happens when embedders use Mono.
618 if (mono_assembly_getrootdir () == NULL)
622 check_extra_gac_path_env ();
624 InitializeCriticalSection (&assemblies_mutex);
628 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
630 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
631 guint32 cols [MONO_ASSEMBLY_SIZE];
636 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
639 aname->hash_value = NULL;
640 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
641 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
642 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
643 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
644 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
645 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
646 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
647 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
648 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
649 guchar* token = g_malloc (8);
654 pkey = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
655 len = mono_metadata_decode_blob_size (pkey, &pkey);
656 aname->public_key = (guchar*)pkey;
658 mono_digest_get_public_token (token, aname->public_key, len);
659 encoded = encode_public_tok (token, 8);
660 g_strlcpy ((char*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
666 aname->public_key = NULL;
667 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
670 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
671 aname->public_key = (guchar*)mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
674 aname->public_key = 0;
680 * mono_stringify_assembly_name:
681 * @aname: the assembly name.
683 * Convert @aname into its string format. The returned string is dynamically
684 * allocated and should be freed by the caller.
686 * Returns: a newly allocated string with a string representation of
690 mono_stringify_assembly_name (MonoAssemblyName *aname)
692 return g_strdup_printf (
693 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
695 aname->major, aname->minor, aname->build, aname->revision,
696 aname->culture && *aname->culture? aname->culture: "neutral",
697 aname->public_key_token [0] ? (char *)aname->public_key_token : "null",
698 (aname->flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
702 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
704 const gchar *public_tok;
707 public_tok = mono_metadata_blob_heap (image, key_index);
708 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
710 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
712 mono_digest_get_public_token (token, (guchar*)public_tok, len);
713 return encode_public_tok (token, 8);
716 return encode_public_tok ((guchar*)public_tok, len);
720 * mono_assembly_addref:
721 * @assemnly: the assembly to reference
723 * This routine increments the reference count on a MonoAssembly.
724 * The reference count is reduced every time the method mono_assembly_close() is
728 mono_assembly_addref (MonoAssembly *assembly)
730 InterlockedIncrement (&assembly->ref_count);
733 static MonoAssemblyName *
734 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
736 const MonoRuntimeInfo *current_runtime;
737 int pos, first, last;
739 if (aname->name == NULL) return aname;
740 current_runtime = mono_get_runtime_info ();
743 last = G_N_ELEMENTS (framework_assemblies) - 1;
745 while (first <= last) {
747 pos = first + (last - first) / 2;
748 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
750 const AssemblyVersionSet* vset;
751 int index = framework_assemblies[pos].version_set_index;
752 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
753 vset = ¤t_runtime->version_sets [index];
755 if (aname->major == vset->major && aname->minor == vset->minor &&
756 aname->build == vset->build && aname->revision == vset->revision)
759 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
760 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
761 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
763 aname->major, aname->minor, aname->build, aname->revision,
764 vset->major, vset->minor, vset->build, vset->revision
767 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
768 dest_aname->major = vset->major;
769 dest_aname->minor = vset->minor;
770 dest_aname->build = vset->build;
771 dest_aname->revision = vset->revision;
773 } else if (res < 0) {
783 * mono_assembly_get_assemblyref:
785 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
788 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
791 guint32 cols [MONO_ASSEMBLYREF_SIZE];
794 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
796 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
798 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
799 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
800 aname->hash_value = hash;
801 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
802 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
803 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
804 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
805 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
806 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
807 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
809 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
810 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
811 g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
814 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
819 mono_assembly_load_reference (MonoImage *image, int index)
821 MonoAssembly *reference;
822 MonoAssemblyName aname;
823 MonoImageOpenStatus status;
826 * image->references is shared between threads, so we need to access
827 * it inside a critical section.
829 mono_assemblies_lock ();
830 if (!image->references) {
831 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
833 image->references = g_new0 (MonoAssembly *, t->rows + 1);
835 reference = image->references [index];
836 mono_assemblies_unlock ();
840 mono_assembly_get_assemblyref (image, index, &aname);
842 if (image->assembly && image->assembly->ref_only) {
843 /* We use the loaded corlib */
844 if (!strcmp (aname.name, "mscorlib"))
845 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
847 reference = mono_assembly_loaded_full (&aname, TRUE);
849 /* Try a postload search hook */
850 reference = mono_assembly_invoke_search_hook_internal (&aname, TRUE, TRUE);
854 * Here we must advice that the error was due to
855 * a non loaded reference using the ReflectionOnly api
858 reference = REFERENCE_MISSING;
860 reference = mono_assembly_load (&aname, image->assembly? image->assembly->basedir: NULL, &status);
862 if (reference == NULL){
863 char *extra_msg = g_strdup ("");
865 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
866 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);
867 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
868 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
869 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
870 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
871 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
872 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
875 g_warning ("The following assembly referenced from %s could not be loaded:\n"
876 " Assembly: %s (assemblyref_index=%d)\n"
877 " Version: %d.%d.%d.%d\n"
878 " Public Key: %s\n%s",
879 image->name, aname.name, index,
880 aname.major, aname.minor, aname.build, aname.revision,
881 strlen ((char*)aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
885 mono_assemblies_lock ();
886 if (reference == NULL) {
887 /* Flag as not found */
888 reference = REFERENCE_MISSING;
891 if (!image->references [index]) {
892 if (reference != REFERENCE_MISSING){
893 mono_assembly_addref (reference);
895 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
896 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
899 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
900 image->assembly->aname.name, image->assembly);
903 image->references [index] = reference;
905 mono_assemblies_unlock ();
907 if (image->references [index] != reference) {
908 /* Somebody loaded it before us */
909 mono_assembly_close (reference);
914 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
916 /* This is a no-op now but it is part of the embedding API so we can't remove it */
917 *status = MONO_IMAGE_OK;
920 typedef struct AssemblyLoadHook AssemblyLoadHook;
921 struct AssemblyLoadHook {
922 AssemblyLoadHook *next;
923 MonoAssemblyLoadFunc func;
927 AssemblyLoadHook *assembly_load_hook = NULL;
930 mono_assembly_invoke_load_hook (MonoAssembly *ass)
932 AssemblyLoadHook *hook;
934 for (hook = assembly_load_hook; hook; hook = hook->next) {
935 hook->func (ass, hook->user_data);
940 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
942 AssemblyLoadHook *hook;
944 g_return_if_fail (func != NULL);
946 hook = g_new0 (AssemblyLoadHook, 1);
948 hook->user_data = user_data;
949 hook->next = assembly_load_hook;
950 assembly_load_hook = hook;
954 free_assembly_load_hooks (void)
956 AssemblyLoadHook *hook, *next;
958 for (hook = assembly_load_hook; hook; hook = next) {
964 typedef struct AssemblySearchHook AssemblySearchHook;
965 struct AssemblySearchHook {
966 AssemblySearchHook *next;
967 MonoAssemblySearchFunc func;
973 AssemblySearchHook *assembly_search_hook = NULL;
976 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
978 AssemblySearchHook *hook;
980 for (hook = assembly_search_hook; hook; hook = hook->next) {
981 if ((hook->refonly == refonly) && (hook->postload == postload)) {
982 MonoAssembly *ass = hook->func (aname, hook->user_data);
992 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
994 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
998 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
1000 AssemblySearchHook *hook;
1002 g_return_if_fail (func != NULL);
1004 hook = g_new0 (AssemblySearchHook, 1);
1006 hook->user_data = user_data;
1007 hook->refonly = refonly;
1008 hook->postload = postload;
1009 hook->next = assembly_search_hook;
1010 assembly_search_hook = hook;
1014 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1016 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1020 free_assembly_search_hooks (void)
1022 AssemblySearchHook *hook, *next;
1024 for (hook = assembly_search_hook; hook; hook = next) {
1031 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1033 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1037 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1039 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1043 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1045 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1048 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1049 struct AssemblyPreLoadHook {
1050 AssemblyPreLoadHook *next;
1051 MonoAssemblyPreLoadFunc func;
1055 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1056 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1058 static MonoAssembly *
1059 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1061 AssemblyPreLoadHook *hook;
1062 MonoAssembly *assembly;
1064 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1065 assembly = hook->func (aname, assemblies_path, hook->user_data);
1066 if (assembly != NULL)
1073 static MonoAssembly *
1074 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1076 AssemblyPreLoadHook *hook;
1077 MonoAssembly *assembly;
1079 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1080 assembly = hook->func (aname, assemblies_path, hook->user_data);
1081 if (assembly != NULL)
1089 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1091 AssemblyPreLoadHook *hook;
1093 g_return_if_fail (func != NULL);
1095 hook = g_new0 (AssemblyPreLoadHook, 1);
1097 hook->user_data = user_data;
1098 hook->next = assembly_preload_hook;
1099 assembly_preload_hook = hook;
1103 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1105 AssemblyPreLoadHook *hook;
1107 g_return_if_fail (func != NULL);
1109 hook = g_new0 (AssemblyPreLoadHook, 1);
1111 hook->user_data = user_data;
1112 hook->next = assembly_refonly_preload_hook;
1113 assembly_refonly_preload_hook = hook;
1117 free_assembly_preload_hooks (void)
1119 AssemblyPreLoadHook *hook, *next;
1121 for (hook = assembly_preload_hook; hook; hook = next) {
1126 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1133 absolute_dir (const gchar *filename)
1144 if (g_path_is_absolute (filename))
1145 return g_path_get_dirname (filename);
1147 cwd = g_get_current_dir ();
1148 mixed = g_build_filename (cwd, filename, NULL);
1149 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1154 for (i = 0; (part = parts [i]) != NULL; i++) {
1155 if (!strcmp (part, "."))
1158 if (!strcmp (part, "..")) {
1159 if (list && list->next) /* Don't remove root */
1160 list = g_list_delete_link (list, list);
1162 list = g_list_prepend (list, part);
1166 result = g_string_new ("");
1167 list = g_list_reverse (list);
1169 /* Ignores last data pointer, which should be the filename */
1170 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1172 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1177 g_string_free (result, FALSE);
1182 return g_strdup (".");
1189 * mono_assembly_open_from_bundle:
1190 * @filename: Filename requested
1191 * @status: return value
1193 * This routine tries to open the assembly specified by `filename' from the
1194 * defined bundles, if found, returns the MonoImage for it, if not found
1198 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1202 MonoImage *image = NULL;
1205 * we do a very simple search for bundled assemblies: it's not a general
1206 * purpose assembly loading mechanism.
1212 name = g_path_get_basename (filename);
1214 mono_assemblies_lock ();
1215 for (i = 0; !image && bundles [i]; ++i) {
1216 if (strcmp (bundles [i]->name, name) == 0) {
1217 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1221 mono_assemblies_unlock ();
1224 mono_image_addref (image);
1231 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1235 MonoImageOpenStatus def_status;
1239 g_return_val_if_fail (filename != NULL, NULL);
1242 status = &def_status;
1243 *status = MONO_IMAGE_OK;
1245 if (strncmp (filename, "file://", 7) == 0) {
1246 GError *error = NULL;
1247 gchar *uri = (gchar *) filename;
1251 * MS allows file://c:/... and fails on file://localhost/c:/...
1252 * They also throw an IndexOutOfRangeException if "file://"
1255 uri = g_strdup_printf ("file:///%s", uri + 7);
1258 uri = mono_escape_uri_string (tmpuri);
1259 fname = g_filename_from_uri (uri, NULL, &error);
1262 if (tmpuri != filename)
1265 if (error != NULL) {
1266 g_warning ("%s\n", error->message);
1267 g_error_free (error);
1268 fname = g_strdup (filename);
1271 fname = g_strdup (filename);
1274 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1275 "Assembly Loader probing location: '%s'.", fname);
1276 new_fname = mono_make_shadow_copy (fname);
1277 if (new_fname && new_fname != fname) {
1280 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1281 "Assembly Loader shadow-copied assembly to: '%s'.", fname);
1286 if (bundles != NULL)
1287 image = mono_assembly_open_from_bundle (fname, status, refonly);
1290 mono_assemblies_lock ();
1291 image = mono_image_open_full (fname, status, refonly);
1292 mono_assemblies_unlock ();
1296 if (*status == MONO_IMAGE_OK)
1297 *status = MONO_IMAGE_ERROR_ERRNO;
1302 if (image->assembly) {
1303 /* Already loaded by another appdomain */
1304 mono_assembly_invoke_load_hook (image->assembly);
1305 mono_image_close (image);
1307 return image->assembly;
1310 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1313 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1314 "Assembly Loader loaded assembly from location: '%s'.", filename);
1316 mono_config_for_assembly (ass->image);
1319 /* Clear the reference added by mono_image_open */
1320 mono_image_close (image);
1328 * mono_load_friend_assemblies:
1331 * Load the list of friend assemblies that are allowed to access
1332 * the assembly's internal types and members. They are stored as assembly
1333 * names in custom attributes.
1335 * This is an internal method, we need this because when we load mscorlib
1336 * we do not have the mono_defaults.internals_visible_class loaded yet,
1337 * so we need to load these after we initialize the runtime.
1340 mono_assembly_load_friends (MonoAssembly* ass)
1343 MonoCustomAttrInfo* attrs = mono_custom_attrs_from_assembly (ass);
1346 for (i = 0; i < attrs->num_attrs; ++i) {
1347 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1348 MonoAssemblyName *aname;
1351 /* Do some sanity checking */
1352 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1354 if (attr->data_size < 4)
1356 data = (const char*)attr->data;
1357 /* 0xFF means null string, see custom attr format */
1358 if (data [0] != 1 || data [1] != 0 || (data [2] & 0xFF) == 0xFF)
1360 slen = mono_metadata_decode_value (data + 2, &data);
1361 aname = g_new0 (MonoAssemblyName, 1);
1362 /*g_print ("friend ass: %s\n", data);*/
1363 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL, NULL)) {
1364 ass->friend_assembly_names = g_slist_prepend (ass->friend_assembly_names, aname);
1369 mono_custom_attrs_free (attrs);
1373 * mono_assembly_open:
1374 * @filename: Opens the assembly pointed out by this name
1375 * @status: where a status code can be returned
1377 * mono_assembly_open opens the PE-image pointed by @filename, and
1378 * loads any external assemblies referenced by it.
1380 * Return: a pointer to the MonoAssembly if @filename contains a valid
1381 * assembly or NULL on error. Details about the error are stored in the
1385 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1387 return mono_assembly_open_full (filename, status, FALSE);
1391 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1392 MonoImageOpenStatus *status, gboolean refonly)
1394 MonoAssembly *ass, *ass2;
1397 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1398 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1399 *status = MONO_IMAGE_IMAGE_INVALID;
1403 #if defined (PLATFORM_WIN32)
1408 tmp_fn = g_strdup (fname);
1409 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1410 if (tmp_fn [i] == '/')
1414 base_dir = absolute_dir (tmp_fn);
1418 base_dir = absolute_dir (fname);
1422 * Create assembly struct, and enter it into the assembly cache
1424 ass = g_new0 (MonoAssembly, 1);
1425 ass->basedir = base_dir;
1426 ass->ref_only = refonly;
1429 mono_profiler_assembly_event (ass, MONO_PROFILE_START_LOAD);
1431 mono_assembly_fill_assembly_name (image, &ass->aname);
1433 if (mono_defaults.corlib && strcmp (ass->aname.name, "mscorlib") == 0) {
1434 // MS.NET doesn't support loading other mscorlibs
1437 mono_image_addref (mono_defaults.corlib);
1438 *status = MONO_IMAGE_OK;
1439 return mono_defaults.corlib->assembly;
1442 /* Add a non-temporary reference because of ass->image */
1443 mono_image_addref (image);
1445 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);
1448 * Atomically search the loaded list and add ourselves to it if necessary.
1450 mono_assemblies_lock ();
1451 if (ass->aname.name) {
1452 /* avoid loading the same assembly twice for now... */
1453 ass2 = search_loaded (&ass->aname, refonly);
1455 mono_assemblies_unlock ();
1458 mono_image_close (image);
1459 *status = MONO_IMAGE_OK;
1464 g_assert (image->assembly == NULL);
1465 image->assembly = ass;
1467 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1468 if (mono_defaults.internals_visible_class)
1469 mono_assembly_load_friends (ass);
1470 #ifdef PLATFORM_WIN32
1471 if (image->is_module_handle)
1472 mono_image_fixup_vtable (image);
1474 mono_assemblies_unlock ();
1476 mono_assembly_invoke_load_hook (ass);
1478 mono_profiler_assembly_loaded (ass, MONO_PROFILE_OK);
1484 mono_assembly_load_from (MonoImage *image, const char *fname,
1485 MonoImageOpenStatus *status)
1487 return mono_assembly_load_from_full (image, fname, status, FALSE);
1491 * mono_assembly_name_free:
1492 * @aname: assembly name to free
1494 * Frees the provided assembly name object.
1495 * (it does not frees the object itself, only the name members).
1498 mono_assembly_name_free (MonoAssemblyName *aname)
1503 g_free ((void *) aname->name);
1504 g_free ((void *) aname->culture);
1505 g_free ((void *) aname->hash_value);
1509 parse_public_key (const gchar *key, gchar** pubkey)
1512 gchar header [16], val, *arr;
1513 gint i, j, offset, bitlen, keylen, pkeylen;
1515 keylen = strlen (key) >> 1;
1519 val = g_ascii_xdigit_value (key [0]) << 4;
1520 val |= g_ascii_xdigit_value (key [1]);
1525 val = g_ascii_xdigit_value (key [24]);
1526 val |= g_ascii_xdigit_value (key [25]);
1538 /* We need the first 16 bytes
1539 * to check whether this key is valid or not */
1540 pkeylen = strlen (pkey) >> 1;
1544 for (i = 0, j = 0; i < 16; i++) {
1545 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1546 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1549 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1550 header [1] != 0x02 || /* Version (0x02) */
1551 header [2] != 0x00 || /* Reserved (word) */
1552 header [3] != 0x00 ||
1553 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1556 /* Based on this length, we _should_ be able to know if the length is right */
1557 bitlen = read32 (header + 12) >> 3;
1558 if ((bitlen + 16 + 4) != pkeylen)
1561 /* Encode the size of the blob */
1563 if (keylen <= 127) {
1564 arr = g_malloc (keylen + 1);
1565 arr [offset++] = keylen;
1567 arr = g_malloc (keylen + 2);
1568 arr [offset++] = 0x80; /* 10bs */
1569 arr [offset++] = keylen;
1572 for (i = offset, j = 0; i < keylen + offset; i++) {
1573 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1574 arr [i] |= g_ascii_xdigit_value (key [j++]);
1583 build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, guint32 flags, MonoAssemblyName *aname, gboolean save_public_key)
1585 gint major, minor, build, revision;
1588 gchar *pkey, *pkeyptr, *encoded, tok [8];
1590 memset (aname, 0, sizeof (MonoAssemblyName));
1593 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1594 if (version_parts < 2 || version_parts > 4)
1597 /* FIXME: we should set build & revision to -1 (instead of 0)
1598 if these are not set in the version string. That way, later on,
1599 we can still determine if these were specified. */
1600 aname->major = major;
1601 aname->minor = minor;
1602 if (version_parts >= 3)
1603 aname->build = build;
1606 if (version_parts == 4)
1607 aname->revision = revision;
1609 aname->revision = 0;
1612 aname->flags = flags;
1613 aname->name = g_strdup (name);
1616 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1617 aname->culture = g_strdup ("");
1619 aname->culture = g_strdup (culture);
1622 if (token && strncmp (token, "null", 4) != 0) {
1625 /* the constant includes the ending NULL, hence the -1 */
1626 if (strlen (token) != (MONO_PUBLIC_KEY_TOKEN_LENGTH - 1)) {
1629 lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1630 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1635 if (strcmp (key, "null") == 0 || !parse_public_key (key, &pkey)) {
1636 mono_assembly_name_free (aname);
1640 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1641 // We also need to generate the key token
1642 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1643 encoded = encode_public_tok ((guchar*) tok, 8);
1644 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1647 if (save_public_key)
1648 aname->public_key = (guint8*) pkey;
1657 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1662 parts = g_strsplit (dirname, "_", 3);
1663 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1668 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, 0, aname, FALSE);
1674 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined, gboolean *is_token_defined)
1677 gchar *version = NULL;
1678 gchar *culture = NULL;
1679 gchar *token = NULL;
1681 gchar *retargetable = NULL;
1686 gboolean version_defined;
1687 gboolean token_defined;
1690 if (!is_version_defined)
1691 is_version_defined = &version_defined;
1692 *is_version_defined = FALSE;
1693 if (!is_token_defined)
1694 is_token_defined = &token_defined;
1695 *is_token_defined = FALSE;
1697 parts = tmp = g_strsplit (name, ",", 6);
1698 if (!tmp || !*tmp) {
1703 dllname = g_strstrip (*tmp);
1708 value = g_strstrip (*tmp);
1709 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1710 *is_version_defined = TRUE;
1711 version = g_strstrip (value + 8);
1712 if (strlen (version) == 0) {
1719 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1720 culture = g_strstrip (value + 8);
1721 if (strlen (culture) == 0) {
1728 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1729 *is_token_defined = TRUE;
1730 token = g_strstrip (value + 15);
1731 if (strlen (token) == 0) {
1738 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1739 key = g_strstrip (value + 10);
1740 if (strlen (key) == 0) {
1747 if (!g_ascii_strncasecmp (value, "Retargetable=", 13)) {
1748 retargetable = g_strstrip (value + 13);
1749 if (strlen (retargetable) == 0) {
1752 if (!g_ascii_strcasecmp (retargetable, "yes")) {
1753 flags |= ASSEMBLYREF_RETARGETABLE_FLAG;
1754 } else if (g_ascii_strcasecmp (retargetable, "no")) {
1761 if (!g_ascii_strncasecmp (value, "ProcessorArchitecture=", 22)) {
1762 /* this is ignored for now, until we can change MonoAssemblyName */
1771 /* if retargetable flag is set, then we must have a fully qualified name */
1772 if (retargetable != NULL && (version == NULL || culture == NULL || (key == NULL && token == NULL))) {
1776 res = build_assembly_name (dllname, version, culture, token, key, flags,
1777 aname, save_public_key);
1783 * mono_assembly_name_parse:
1784 * @name: name to parse
1785 * @aname: the destination assembly name
1787 * Parses an assembly qualified type name and assigns the name,
1788 * version, culture and token to the provided assembly name object.
1790 * Returns: true if the name could be parsed.
1793 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1795 return mono_assembly_name_parse_full (name, aname, FALSE, NULL, NULL);
1798 static MonoAssembly*
1799 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1801 gchar *fullpath = NULL;
1803 const char* direntry;
1804 MonoAssemblyName gac_aname;
1805 gint major=-1, minor=0, build=0, revision=0;
1806 gboolean exact_version;
1808 dirhandle = g_dir_open (basepath, 0, NULL);
1812 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1814 while ((direntry = g_dir_read_name (dirhandle))) {
1815 gboolean match = TRUE;
1817 if(!parse_assembly_directory_name (aname->name, direntry, &gac_aname))
1820 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1823 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1824 !mono_public_tokens_are_equal (aname->public_key_token, gac_aname.public_key_token))
1828 if (exact_version) {
1829 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1830 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1832 else if (gac_aname.major < major)
1834 else if (gac_aname.major == major) {
1835 if (gac_aname.minor < minor)
1837 else if (gac_aname.minor == minor) {
1838 if (gac_aname.build < build)
1840 else if (gac_aname.build == build && gac_aname.revision <= revision)
1847 major = gac_aname.major;
1848 minor = gac_aname.minor;
1849 build = gac_aname.build;
1850 revision = gac_aname.revision;
1852 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1855 mono_assembly_name_free (&gac_aname);
1858 g_dir_close (dirhandle);
1860 if (fullpath == NULL)
1863 MonoAssembly *res = mono_assembly_open (fullpath, status);
1870 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1873 MonoAssemblyName *aname, base_name, maped_aname;
1874 gchar *fullname, *gacpath;
1877 memset (&base_name, 0, sizeof (MonoAssemblyName));
1880 if (!mono_assembly_name_parse (name, aname))
1884 * If no specific version has been requested, make sure we load the
1885 * correct version for system assemblies.
1887 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1888 aname = mono_assembly_remap_version (aname, &maped_aname);
1890 res = mono_assembly_loaded (aname);
1892 mono_assembly_name_free (aname);
1896 res = invoke_assembly_preload_hook (aname, assemblies_path);
1898 res->in_gac = FALSE;
1899 mono_assembly_name_free (aname);
1903 fullname = g_strdup_printf ("%s.dll", aname->name);
1905 if (extra_gac_paths) {
1906 paths = extra_gac_paths;
1907 while (!res && *paths) {
1908 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1909 res = probe_for_partial_name (gacpath, fullname, aname, status);
1918 mono_assembly_name_free (aname);
1922 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1923 res = probe_for_partial_name (gacpath, fullname, aname, status);
1929 MonoDomain *domain = mono_domain_get ();
1930 MonoReflectionAssembly *refasm = mono_try_assembly_resolve (domain, mono_string_new (domain, name), FALSE);
1932 res = refasm->assembly;
1936 mono_assembly_name_free (aname);
1942 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
1945 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
1949 if (strstr (aname->name, ".dll")) {
1950 len = strlen (aname->name) - 4;
1951 name = g_malloc (len);
1952 strncpy (name, aname->name, len);
1954 name = g_strdup (aname->name);
1956 if (aname->culture) {
1957 culture = g_strdup (aname->culture);
1958 g_strdown (culture);
1960 culture = g_strdup ("");
1962 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
1963 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
1967 filename = g_strconcat (pname, ".dll", NULL);
1968 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
1974 if (extra_gac_paths) {
1975 paths = extra_gac_paths;
1976 while (!image && *paths) {
1977 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
1978 "lib", "mono", "gac", subpath, NULL);
1979 image = mono_image_open (fullpath, NULL);
1990 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
1991 "mono", "gac", subpath, NULL);
1992 image = mono_image_open (fullpath, NULL);
1999 static MonoAssemblyName*
2000 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2002 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
2003 dest_name->major = info->new_version.major;
2004 dest_name->minor = info->new_version.minor;
2005 dest_name->build = info->new_version.build;
2006 dest_name->revision = info->new_version.revision;
2011 /* LOCKING: Assumes that we are already locked */
2012 static MonoAssemblyBindingInfo*
2013 search_binding_loaded (MonoAssemblyName *aname)
2017 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2018 MonoAssemblyBindingInfo *info = tmp->data;
2019 if (assembly_binding_maps_name (info, aname))
2026 static MonoAssemblyName*
2027 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2029 MonoAssemblyBindingInfo *info, *info2;
2032 if (aname->public_key_token [0] == 0)
2035 mono_loader_lock ();
2036 info = search_binding_loaded (aname);
2037 mono_loader_unlock ();
2039 if (!check_policy_versions (info, aname))
2042 mono_assembly_bind_version (info, aname, dest_name);
2046 info = g_new0 (MonoAssemblyBindingInfo, 1);
2047 info->major = aname->major;
2048 info->minor = aname->minor;
2050 ppimage = mono_assembly_load_publisher_policy (aname);
2052 get_publisher_policy_info (ppimage, aname, info);
2053 mono_image_close (ppimage);
2056 /* Define default error value if needed */
2057 if (!info->is_valid) {
2058 info->name = g_strdup (aname->name);
2059 info->culture = g_strdup (aname->culture);
2060 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2063 mono_loader_lock ();
2064 info2 = search_binding_loaded (aname);
2066 /* This binding was added by another thread
2068 mono_assembly_binding_info_free (info);
2073 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2075 mono_loader_unlock ();
2077 if (!info->is_valid || !check_policy_versions (info, aname))
2080 mono_assembly_bind_version (info, aname, dest_name);
2085 * mono_assembly_load_from_gac
2087 * @aname: The assembly name object
2089 static MonoAssembly*
2090 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2092 MonoAssembly *result = NULL;
2093 gchar *name, *version, *culture, *fullpath, *subpath;
2098 if (aname->public_key_token [0] == 0) {
2102 if (strstr (aname->name, ".dll")) {
2103 len = strlen (filename) - 4;
2104 name = g_malloc (len);
2105 strncpy (name, aname->name, len);
2107 name = g_strdup (aname->name);
2110 if (aname->culture) {
2111 culture = g_strdup (aname->culture);
2112 g_strdown (culture);
2114 culture = g_strdup ("");
2117 pubtok = g_ascii_strdown ((char*)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2118 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2119 aname->minor, aname->build, aname->revision,
2123 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2128 if (extra_gac_paths) {
2129 paths = extra_gac_paths;
2130 while (!result && *paths) {
2131 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2132 result = mono_assembly_open_full (fullpath, status, refonly);
2139 result->in_gac = TRUE;
2144 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2145 "mono", "gac", subpath, NULL);
2146 result = mono_assembly_open_full (fullpath, status, refonly);
2150 result->in_gac = TRUE;
2159 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2164 /* g_print ("corlib already loaded\n"); */
2168 if (assemblies_path) {
2169 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2174 /* Load corlib from mono/<version> */
2176 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2177 if (assemblies_path) {
2178 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2180 g_free (corlib_file);
2184 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2185 g_free (corlib_file);
2191 mono_assembly_load_full_nosearch (MonoAssemblyName *aname,
2192 const char *basedir,
2193 MonoImageOpenStatus *status,
2196 MonoAssembly *result;
2197 char *fullpath, *filename;
2198 MonoAssemblyName maped_aname, maped_name_pp;
2203 aname = mono_assembly_remap_version (aname, &maped_aname);
2205 /* Reflection only assemblies don't get assembly binding */
2207 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2209 result = mono_assembly_loaded_full (aname, refonly);
2213 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2215 result->in_gac = FALSE;
2219 /* Currently we retrieve the loaded corlib for reflection
2220 * only requests, like a common reflection only assembly
2222 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2223 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2226 len = strlen (aname->name);
2227 for (ext_index = 0; ext_index < 2; ext_index ++) {
2228 ext = ext_index == 0 ? ".dll" : ".exe";
2229 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2230 filename = g_strdup (aname->name);
2231 /* Don't try appending .dll/.exe if it already has one of those extensions */
2234 filename = g_strconcat (aname->name, ext, NULL);
2237 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2244 fullpath = g_build_filename (basedir, filename, NULL);
2245 result = mono_assembly_open_full (fullpath, status, refonly);
2248 result->in_gac = FALSE;
2254 result = load_in_path (filename, default_path, status, refonly);
2256 result->in_gac = FALSE;
2266 * mono_assembly_load_full:
2267 * @aname: A MonoAssemblyName with the assembly name to load.
2268 * @basedir: A directory to look up the assembly at.
2269 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2270 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2272 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2273 * attempts to load the assembly from that directory before probing the standard locations.
2275 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2276 * assembly binding takes place.
2278 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2279 * value pointed by status is updated with an error code.
2282 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2284 MonoAssembly *result = mono_assembly_load_full_nosearch (aname, basedir, status, refonly);
2287 /* Try a postload search hook */
2288 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2293 * mono_assembly_load:
2294 * @aname: A MonoAssemblyName with the assembly name to load.
2295 * @basedir: A directory to look up the assembly at.
2296 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2298 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2299 * attempts to load the assembly from that directory before probing the standard locations.
2301 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2302 * value pointed by status is updated with an error code.
2305 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2307 return mono_assembly_load_full (aname, basedir, status, FALSE);
2311 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2314 MonoAssemblyName maped_aname;
2316 aname = mono_assembly_remap_version (aname, &maped_aname);
2318 mono_assemblies_lock ();
2319 res = search_loaded (aname, refonly);
2320 mono_assemblies_unlock ();
2326 * mono_assembly_loaded:
2327 * @aname: an assembly to look for.
2329 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2330 * a MonoAssembly that matches the MonoAssemblyName specified.
2333 mono_assembly_loaded (MonoAssemblyName *aname)
2335 return mono_assembly_loaded_full (aname, FALSE);
2339 * mono_assembly_close:
2340 * @assembly: the assembly to release.
2342 * This method releases a reference to the @assembly. The assembly is
2343 * only released when all the outstanding references to it are released.
2346 mono_assembly_close (MonoAssembly *assembly)
2349 g_return_if_fail (assembly != NULL);
2351 if (assembly == REFERENCE_MISSING)
2354 /* Might be 0 already */
2355 if (InterlockedDecrement (&assembly->ref_count) > 0)
2358 mono_profiler_assembly_event (assembly, MONO_PROFILE_START_UNLOAD);
2360 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2362 mono_debug_close_image (assembly->image);
2364 mono_assemblies_lock ();
2365 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2366 mono_assemblies_unlock ();
2368 assembly->image->assembly = NULL;
2370 mono_image_close (assembly->image);
2372 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2373 MonoAssemblyName *fname = tmp->data;
2374 mono_assembly_name_free (fname);
2377 g_slist_free (assembly->friend_assembly_names);
2378 g_free (assembly->basedir);
2379 if (assembly->dynamic) {
2380 g_free ((char*)assembly->aname.culture);
2385 mono_profiler_assembly_event (assembly, MONO_PROFILE_END_UNLOAD);
2389 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2391 return mono_image_load_file_for_image (assembly->image, idx);
2395 mono_assembly_foreach (GFunc func, gpointer user_data)
2400 * We make a copy of the list to avoid calling the callback inside the
2401 * lock, which could lead to deadlocks.
2403 mono_assemblies_lock ();
2404 copy = g_list_copy (loaded_assemblies);
2405 mono_assemblies_unlock ();
2407 g_list_foreach (loaded_assemblies, func, user_data);
2413 * mono_assemblies_cleanup:
2415 * Free all resources used by this module.
2418 mono_assemblies_cleanup (void)
2422 DeleteCriticalSection (&assemblies_mutex);
2424 for (l = loaded_assembly_bindings; l; l = l->next) {
2425 MonoAssemblyBindingInfo *info = l->data;
2427 mono_assembly_binding_info_free (info);
2430 g_slist_free (loaded_assembly_bindings);
2432 free_assembly_load_hooks ();
2433 free_assembly_search_hooks ();
2434 free_assembly_preload_hooks ();
2438 * Holds the assembly of the application, for
2439 * System.Diagnostics.Process::MainModule
2441 static MonoAssembly *main_assembly=NULL;
2444 mono_assembly_set_main (MonoAssembly *assembly)
2446 main_assembly = assembly;
2450 * mono_assembly_get_main:
2452 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2455 mono_assembly_get_main (void)
2457 return (main_assembly);
2461 * mono_assembly_get_image:
2462 * @assembly: The assembly to retrieve the image from
2464 * Returns: the MonoImage associated with this assembly.
2467 mono_assembly_get_image (MonoAssembly *assembly)
2469 return assembly->image;
2473 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2475 bundles = assemblies;