2004-09-09 Martin Baulig <martin@ximian.com>
[mono.git] / mono / metadata / assembly.c
index fae010bdfc9d46a00516fd44ac64f250982de1b3..8025039b6f4a51c115bfce0e05c8fe09fe95b8cb 100644 (file)
@@ -6,8 +6,6 @@
  *
  * (C) 2001 Ximian, Inc.  http://www.ximian.com
  *
- * TODO:
- *   Implement big-endian versions of the reading routines.
  */
 #include <config.h>
 #include <stdio.h>
 #endif
 #include <mono/metadata/loader.h>
 #include <mono/metadata/tabledefs.h>
+#include <mono/metadata/metadata-internals.h>
+#include <mono/metadata/domain-internals.h>
 #include <mono/io-layer/io-layer.h>
 #include <mono/utils/mono-uri.h>
 #include <mono/metadata/mono-config.h>
 #include <mono/utils/mono-digest.h>
+#include <mono/utils/mono-logger.h>
 #ifdef PLATFORM_WIN32
 #include <mono/os/util.h>
 #endif
@@ -58,7 +59,7 @@ static char **extra_gac_paths = NULL;
 static gchar*
 encode_public_tok (const guchar *token, gint32 len)
 {
-       static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+       const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
        gchar *res;
        int i;
 
@@ -100,7 +101,7 @@ check_extra_gac_path_env (void) {
        const char *path;
        char **splitted;
        
-       path = g_getenv ("MONO_GAC_PATH");
+       path = g_getenv ("MONO_GAC_PREFIX");
        if (!path)
                return;
 
@@ -267,8 +268,29 @@ mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
        aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
        aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
        aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
-       if (cols [MONO_ASSEMBLY_PUBLIC_KEY])
+       if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
+               gchar* token = g_malloc (8);
+               gchar* encoded;
+               int len;
+
+               aname->public_key = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
+               len = mono_metadata_decode_blob_size (aname->public_key, (const char**)&aname->public_key);
+
+               mono_digest_get_public_token (token, aname->public_key, len);
+               encoded = encode_public_tok (token, 8);
+               g_strlcpy (aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+
+               g_free (encoded);
+               g_free (token);
+       }
+       else {
+               aname->public_key = NULL;
+               memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+       }
+
+       if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
                aname->public_key = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
+       }
        else
                aname->public_key = 0;
 
@@ -338,10 +360,11 @@ mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
                aname.revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
 
                if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
-                       aname.public_tok_value = assemblyref_public_tok (image,
-                                       cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname.flags);
+                       gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname.flags);
+                       g_strlcpy (aname.public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+                       g_free (token);
                } else {
-                       aname.public_tok_value = NULL;
+                       memset (aname.public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
                } 
 
                references [i] = mono_assembly_load (&aname, image->assembly->basedir, status);
@@ -366,6 +389,15 @@ mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
                                                 image->name, aname.name);
                                
                        } else {
+                               char *extra_msg = g_strdup ("");
+
+                               if (*status == MONO_IMAGE_ERROR_ERRNO) {
+                                       extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
+                               } else if (*status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
+                                       extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
+                               } else if (*status == MONO_IMAGE_IMAGE_INVALID) {
+                                       extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
+                               }
                        
                                for (j = 0; j < i; j++)
                                        mono_assembly_close (references [j]);
@@ -374,11 +406,12 @@ mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
                                g_warning ("Could not find assembly %s, references from %s (assemblyref_index=%d)\n"
                                           "     Major/Minor: %d,%d\n"
                                           "     Build:       %d,%d\n"
-                                          "     Token:       %s\n",
+                                          "     Token:       %s\n%s",
                                           aname.name, image->name, i,
                                           aname.major, aname.minor, aname.build, aname.revision,
-                                          aname.public_tok_value);
+                                          aname.public_key_token, extra_msg);
                                *status = MONO_IMAGE_MISSING_ASSEMBLYREF;
+                               g_free (extra_msg);
                                return;
                        }
                }
@@ -585,7 +618,7 @@ do_mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
        EnterCriticalSection (&assemblies_mutex);
        image = mono_image_open (filename, status);
        LeaveCriticalSection (&assemblies_mutex);
-       
+
        return image;
 }
 
@@ -643,7 +676,8 @@ mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
                fname = g_strdup (filename);
        }
 
-       /* g_print ("file loading %s\n", fname); */
+       mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
+                       "Assembly Loader probing location: '%s'.", filename);
        image = do_mono_assembly_open (fname, status);
 
        if (!image){
@@ -654,7 +688,11 @@ mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
 
        ass = mono_assembly_load_from (image, fname, status);
 
-       mono_config_for_assembly (ass->image);
+       if (ass) {
+               mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
+                               "Assembly Loader loaded assembly from location: '%s'.", filename);
+               mono_config_for_assembly (ass->image);
+       }
 
        g_free (fname);
 
@@ -849,11 +887,11 @@ static MonoAssembly*
 mono_assembly_load_from_gac (MonoAssemblyName *aname,  gchar *filename, MonoImageOpenStatus *status)
 {
        MonoAssembly *result = NULL;
-       gchar *name, *version, *fullpath, *subpath;
+       gchar *name, *version, *culture, *fullpath, *subpath;
        gint32 len;
        gchar **paths;
 
-       if (!aname->public_tok_value) {
+       if (aname->public_key_token [0] == 0) {
                return NULL;
        }
 
@@ -865,19 +903,26 @@ mono_assembly_load_from_gac (MonoAssemblyName *aname,  gchar *filename, MonoImag
                name = g_strdup (aname->name);
        }
 
+       if (aname->culture) {
+               culture = g_strdup (aname->culture);
+               g_strdown (culture);
+       } else {
+               culture = g_strdup ("");
+       }
+
        version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
                        aname->minor, aname->build, aname->revision,
-                       aname->culture == NULL ? "" : aname->culture,
-                       aname->public_tok_value);
+                       culture, aname->public_key_token);
        
        subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
        g_free (name);
        g_free (version);
+       g_free (culture);
 
        if (extra_gac_paths) {
                paths = extra_gac_paths;
                while (!result && *paths) {
-                       fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "gac", subpath, NULL);
+                       fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
                        result = mono_assembly_open (fullpath, status);
                        g_free (fullpath);
                        paths++;
@@ -923,6 +968,7 @@ mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenS
        /* g_print ("loading %s\n", aname->name); */
        /* special case corlib */
        if (strcmp (aname->name, "mscorlib") == 0) {
+               char *corlib_file;
                if (corlib) {
                        /* g_print ("corlib already loaded\n"); */
                        return corlib;
@@ -934,6 +980,23 @@ mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenS
                                return corlib;
                }
                corlib = load_in_path ("mscorlib.dll", default_path, status);
+
+               if (corlib)
+                       return corlib;
+       
+               /* Load corlib from mono/<version> */
+               
+               corlib_file = g_build_filename ("mono", mono_get_framework_version (), "mscorlib.dll", NULL);
+               if (assemblies_path) {
+                       corlib = load_in_path (corlib_file, (const char**)assemblies_path, status);
+                       if (corlib) {
+                               g_free (corlib_file);
+                               return corlib;
+                       }
+               }
+               corlib = load_in_path (corlib_file, default_path, status);
+               g_free (corlib_file);
+       
                return corlib;
        }
 
@@ -1054,4 +1117,8 @@ mono_assembly_get_main (void)
        return(main_assembly);
 }
 
-
+MonoImage*
+mono_assembly_get_image (MonoAssembly *assembly)
+{
+       return assembly->image;
+}