#include <glib.h>
#include <errno.h>
#include <string.h>
+#include <stdlib.h>
#include "assembly.h"
#include "image.h"
#include "cil-coff.h"
#include "rawbuffer.h"
-#define CSIZE(x) (sizeof (x) / 4)
+/* the default search path is just MONO_ASSEMBLIES */
+static const char*
+default_path [] = {
+ MONO_ASSEMBLIES,
+ NULL
+};
+
+static char **assemblies_path = NULL;
+static int env_checked = 0;
+
+#ifdef PLATFORM_WIN32
+static gboolean path_inited = FALSE;
+
+static void
+init_default_path (void)
+{
+ int i;
+
+ if (path_inited)
+ return;
+
+ path_inited = TRUE;
+ default_path [0] = g_strdup (MONO_ASSEMBLIES);
+ for (i = strlen (MONO_ASSEMBLIES) - 1; i >= 0; i--) {
+ if (default_path [0][i] == '/')
+ default_path [0][i] = '\\';
+ }
+}
+#endif
+
+static void
+check_env (void) {
+ const char *path;
+ char **splitted;
+
+ if (env_checked)
+ return;
+ env_checked = 1;
+
+ path = getenv ("MONO_PATH");
+ if (!path)
+ return;
+ splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
+ if (assemblies_path)
+ g_strfreev (assemblies_path);
+ assemblies_path = splitted;
+}
/*
* keeps track of loaded assemblies
*/
-static GHashTable *assemblies;
+static GList *loaded_assemblies = NULL;
+static MonoAssembly *corlib;
+
+static MonoAssembly*
+search_loaded (MonoAssemblyName* aname)
+{
+ GList *tmp;
+ MonoAssembly *ass;
+
+ for (tmp = loaded_assemblies; tmp; tmp = tmp->next) {
+ ass = tmp->data;
+ if (!ass->aname.name)
+ continue;
+ /* we just compare the name, but later we'll do all the checks */
+ /* g_print ("compare %s %s\n", aname->name, ass->aname.name); */
+ if (strcmp (aname->name, ass->aname.name))
+ continue;
+ /* g_print ("success\n"); */
+ return ass;
+ }
+ return NULL;
+}
+
+static MonoAssembly *
+load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status)
+{
+ int i;
+ char *fullpath;
+ MonoAssembly *result;
+
+ for (i = 0; search_path [i]; ++i) {
+ fullpath = g_build_filename (search_path [i], basename, NULL);
+ result = mono_assembly_open (fullpath, status);
+ g_free (fullpath);
+ if (result)
+ return result;
+ }
+ return NULL;
+}
/**
- * g_concat_dir_and_file:
- * @dir: directory name
- * @file: filename.
+ * mono_assembly_setrootdir:
+ * @root_dir: The pathname of the root directory where we will locate assemblies
+ *
+ * This routine sets the internal default root directory for looking up
+ * assemblies. This is used by Windows installations to compute dynamically
+ * the place where the Mono assemblies are located.
*
- * returns a new allocated string that is the concatenation of dir and file,
- * takes care of the exact details for concatenating them.
*/
-static char *
-g_concat_dir_and_file (const char *dir, const char *file)
+void
+mono_assembly_setrootdir (const char *root_dir)
{
- g_return_val_if_fail (dir != NULL, NULL);
- g_return_val_if_fail (file != NULL, NULL);
+ /*
+ * Override the MONO_ASSEMBLIES directory configured at compile time.
+ */
+ default_path [0] = g_strdup (root_dir);
+#ifdef PLATFORM_WIN32
+ path_inited = TRUE;
+#endif
+}
+
+void
+mono_image_load_references (MonoImage *image, MonoImageOpenStatus *status) {
+ MonoTableInfo *t;
+ guint32 cols [MONO_ASSEMBLYREF_SIZE];
+ const char *hash;
+ int i;
+
+ if (image->references)
+ return;
+
+ t = &image->tables [MONO_TABLE_ASSEMBLYREF];
- /*
- * If the directory name doesn't have a / on the end, we need
- * to add one so we get a proper path to the file
+ image->references = g_new0 (MonoAssembly *, t->rows + 1);
+
+ /*
+ * Load any assemblies this image references
*/
- if (dir [strlen(dir) - 1] != G_DIR_SEPARATOR)
- return g_strconcat (dir, G_DIR_SEPARATOR_S, file, NULL);
- else
- return g_strconcat (dir, file, NULL);
+ for (i = 0; i < t->rows; i++) {
+ MonoAssemblyName aname;
+
+ mono_metadata_decode_row (t, i, cols, MONO_ASSEMBLYREF_SIZE);
+
+ hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
+ aname.hash_len = mono_metadata_decode_blob_size (hash, &hash);
+ aname.hash_value = hash;
+ aname.name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
+ aname.culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
+ aname.flags = cols [MONO_ASSEMBLYREF_FLAGS];
+ aname.major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
+ aname.minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
+ aname.build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
+ aname.revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
+
+ image->references [i] = mono_assembly_load (&aname, image->assembly->basedir, status);
+
+ if (image->references [i] == NULL){
+ int j;
+
+ for (j = 0; j < i; j++)
+ mono_assembly_close (image->references [j]);
+ g_free (image->references);
+ image->references = NULL;
+
+ g_warning ("Could not find assembly %s", aname.name);
+ *status = MONO_IMAGE_MISSING_ASSEMBLYREF;
+ return;
+ }
+ }
+ image->references [i] = NULL;
+
+}
+
+typedef struct AssemblyLoadHook AssemblyLoadHook;
+struct AssemblyLoadHook {
+ AssemblyLoadHook *next;
+ MonoAssemblyLoadFunc func;
+ gpointer user_data;
+};
+
+AssemblyLoadHook *assembly_load_hook = NULL;
+
+void
+mono_assembly_invoke_load_hook (MonoAssembly *ass)
+{
+ AssemblyLoadHook *hook;
+
+ for (hook = assembly_load_hook; hook; hook = hook->next) {
+ hook->func (ass, hook->user_data);
+ }
}
-static char *
-default_assembly_name_resolver (const char *name)
+void
+mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
{
- char *file, *path;
+ AssemblyLoadHook *hook;
- if ((strcmp (name, "mscorlib") == 0) ||
- (strcmp (name, "mscorlib.dll") == 0) ||
- (strcmp (name, "corlib.dll") == 0) ||
- (strcmp (name, "corlib") == 0))
- return g_concat_dir_and_file (MONO_ASSEMBLIES, CORLIB_NAME);
+ g_return_if_fail (func != NULL);
+
+ hook = g_new0 (AssemblyLoadHook, 1);
+ hook->func = func;
+ hook->user_data = user_data;
+ hook->next = assembly_load_hook;
+ assembly_load_hook = hook;
+}
+
+typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
+struct AssemblyPreLoadHook {
+ AssemblyPreLoadHook *next;
+ MonoAssemblyPreLoadFunc func;
+ gpointer user_data;
+};
- if (g_file_test (name, G_FILE_TEST_EXISTS))
- return g_strdup (name);
- path = g_concat_dir_and_file (MONO_ASSEMBLIES, name);
- if (g_file_test (path, G_FILE_TEST_EXISTS))
- return g_strdup (path);
- g_free (path);
- file = g_strconcat (name, ".dll", NULL);
- path = g_concat_dir_and_file (MONO_ASSEMBLIES, file);
- g_free (file);
+AssemblyPreLoadHook *assembly_preload_hook = NULL;
+
+static MonoAssembly *
+invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
+{
+ AssemblyPreLoadHook *hook;
+ MonoAssembly *assembly;
+
+ for (hook = assembly_preload_hook; hook; hook = hook->next) {
+ assembly = hook->func (aname, assemblies_path, hook->user_data);
+ if (assembly != NULL)
+ return assembly;
+ }
+
+ return NULL;
+}
+
+void
+mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
+{
+ AssemblyPreLoadHook *hook;
+
+ g_return_if_fail (func != NULL);
- return path;
+ hook = g_new0 (AssemblyPreLoadHook, 1);
+ hook->func = func;
+ hook->user_data = user_data;
+ hook->next = assembly_preload_hook;
+ assembly_preload_hook = hook;
+}
+
+static gchar *
+absolute_dir (const gchar *filename)
+{
+ gchar *cwd;
+ gchar *mixed;
+ gchar **parts;
+ gchar *part;
+ GSList *list, *tmp;
+ GString *result;
+ gchar *res;
+ gint i;
+
+ if (g_path_is_absolute (filename))
+ return g_path_get_dirname (filename);
+
+ cwd = g_get_current_dir ();
+ mixed = g_build_filename (cwd, filename, NULL);
+ parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
+ g_free (mixed);
+ g_free (cwd);
+
+ list = NULL;
+ for (i = 0; (part = parts [i]) != NULL; i++) {
+ if (!strcmp (part, "."))
+ continue;
+
+ if (!strcmp (part, "..")) {
+ if (list && list->next) /* Don't remove root */
+ list = g_slist_delete_link (list, list);
+ } else {
+ list = g_slist_prepend (list, part);
+ }
+ }
+
+ result = g_string_new ("");
+ list = g_slist_reverse (list);
+
+ /* Ignores last data pointer, which should be the filename */
+ for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next)
+ if (tmp->data)
+ g_string_append_printf (result, "%s%c", (char *) tmp->data,
+ G_DIR_SEPARATOR);
+
+ res = result->str;
+ g_string_free (result, FALSE);
+ g_slist_free (list);
+ g_strfreev (parts);
+ if (*res == '\0') {
+ g_free (res);
+ return g_strdup (".");
+ }
+
+ return res;
}
/**
* mono_assembly_open:
* @filename: Opens the assembly pointed out by this name
- * @resolver: A user provided function to resolve assembly references
* @status: where a status code can be returned
*
* mono_assembly_open opens the PE-image pointed by @filename, and
* it.
*/
MonoAssembly *
-mono_assembly_open (const char *filename, MonoAssemblyResolverFn resolver,
- enum MonoImageOpenStatus *status)
+mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
{
- MonoAssembly *ass;
+ MonoAssembly *ass, *ass2;
MonoImage *image;
MonoTableInfo *t;
+ guint32 cols [MONO_ASSEMBLY_SIZE];
int i;
- char *fullname;
- const char *base_name = strrchr (filename, G_DIR_SEPARATOR);
- static MonoAssembly *corlib;
+ char *base_dir, *aot_name;
+ MonoImageOpenStatus def_status;
+ gchar *fname;
g_return_val_if_fail (filename != NULL, NULL);
- if (assemblies == NULL)
- assemblies = g_hash_table_new (g_str_hash, g_str_equal);
+ if (!status)
+ status = &def_status;
+ *status = MONO_IMAGE_OK;
- if ((ass = g_hash_table_lookup (assemblies, filename)) != NULL){
- ass->ref_count++;
- return ass;
- }
-
- if (base_name == NULL)
- base_name = filename;
- else
- base_name++;
+ if (strncmp (filename, "file://", 7) == 0) {
+ GError *error = NULL;
+ gchar *uri = (gchar *) filename;
- if (resolver == NULL)
- resolver = default_assembly_name_resolver;
+ /*
+ * MS allows file://c:/... and fails on file://localhost/c:/...
+ * They also throw an IndexOutOfRangeException if "file://"
+ */
+ if (uri [7] != '/')
+ uri = g_strdup_printf ("file:///%s", uri + 7);
+
+ fname = g_filename_from_uri (uri, NULL, &error);
+ if (uri != filename)
+ g_free (uri);
+ if (error != NULL) {
+ g_warning ("%s\n", error->message);
+ g_error_free (error);
+ fname = g_strdup (filename);
+ }
+ } else {
+ fname = g_strdup (filename);
+ }
- fullname = resolver (filename);
- image = mono_image_open (fullname, status);
+ /* g_print ("file loading %s\n", fname); */
+ image = mono_image_open (fname, status);
if (!image){
- if (status)
- *status = MONO_IMAGE_ERROR_ERRNO;
- g_free (fullname);
+ *status = MONO_IMAGE_ERROR_ERRNO;
+ g_free (fname);
return NULL;
}
- t = &image->tables [MONO_TABLE_ASSEMBLYREF];
+#if defined (PLATFORM_WIN32)
+ {
+ gchar *tmp_fn;
+ tmp_fn = g_strdup (fname);
+ for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
+ if (tmp_fn [i] == '/')
+ tmp_fn [i] = '\\';
+ }
- image->references = g_new0 (MonoAssembly *, t->rows + 1);
+ base_dir = absolute_dir (tmp_fn);
+ g_free (tmp_fn);
+ }
+#else
+ base_dir = absolute_dir (fname);
+#endif
/*
* Create assembly struct, and enter it into the assembly cache
*/
- ass = g_new (MonoAssembly, 1);
- ass->name = fullname;
+ ass = g_new0 (MonoAssembly, 1);
+ ass->basedir = base_dir;
ass->image = image;
- g_hash_table_insert (assemblies, image->name, ass);
- g_hash_table_insert (assemblies, ass->name, ass);
-
- /*
- * Load any assemblies this image references
- */
- for (i = 0; i < t->rows; i++){
- char *assembly_ref;
- const char *name;
- guint32 cols [MONO_ASSEMBLYREF_SIZE];
+ /* load aot compiled module */
+ aot_name = g_strdup_printf ("%s.so", fname);
+ g_free (fname);
+ ass->aot_module = g_module_open (aot_name, G_MODULE_BIND_LAZY);
+ g_free (aot_name);
- mono_metadata_decode_row (t, i, cols, CSIZE (cols));
- name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
+ if (ass->aot_module) {
+ char *saved_guid = NULL;
+ g_module_symbol (ass->aot_module, "mono_assembly_guid", (gpointer *) &saved_guid);
- /*
- * Special case until we have a passable corlib:
- *
- * ie, references to mscorlib from corlib.dll are ignored
- * and we do not load corlib twice.
- */
- if (strcmp (base_name, CORLIB_NAME) == 0){
- if (corlib == NULL)
- corlib = ass;
-
- if (strcmp (name, "mscorlib") == 0)
- continue;
+ if (!saved_guid || strcmp (image->guid, saved_guid)) {
+ g_module_close (ass->aot_module);
+ ass->aot_module = NULL;
}
+ }
+
+ t = &image->tables [MONO_TABLE_ASSEMBLY];
+ if (t->rows) {
+ mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
- assembly_ref = (*resolver) (name);
+ ass->aname.hash_len = 0;
+ ass->aname.hash_value = NULL;
+ ass->aname.name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
+ ass->aname.culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
+ ass->aname.flags = cols [MONO_ASSEMBLY_FLAGS];
+ ass->aname.major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
+ ass->aname.minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
+ ass->aname.build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
+ ass->aname.revision = cols [MONO_ASSEMBLY_REV_NUMBER];
- image->references [i] = mono_assembly_open (assembly_ref, resolver, status);
+ /* avoid loading the same assembly twice for now... */
+ if ((ass2 = search_loaded (&ass->aname))) {
+ g_free (ass);
+ g_free (base_dir);
+ *status = MONO_IMAGE_OK;
+ return ass2;
+ }
+ }
- if (image->references [i] == NULL){
- int j;
-
- for (j = 0; j < i; j++)
- mono_assembly_close (image->references [j]);
- g_free (image->references);
- mono_image_close (image);
+ image->assembly = ass;
- g_warning ("Could not find assembly %s %s", name, assembly_ref);
- g_free (assembly_ref);
- if (status)
- *status = MONO_IMAGE_MISSING_ASSEMBLYREF;
- g_free (ass);
- return NULL;
+ /* register right away to prevent loops */
+ loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
+
+ mono_image_load_references (image, status);
+ if (*status != MONO_IMAGE_OK) {
+ mono_assembly_close (ass);
+ return NULL;
+ }
+
+ /* resolve assembly references for modules */
+ t = &image->tables [MONO_TABLE_MODULEREF];
+ for (i = 0; i < t->rows; i++){
+ if (image->modules [i]) {
+ image->modules [i]->assembly = ass;
+ mono_image_load_references (image->modules [i], status);
}
- g_free (assembly_ref);
+ /*
+ * FIXME: what do we do here? it could be a native dll...
+ * We should probably do lazy-loading of modules.
+ */
+ *status = MONO_IMAGE_OK;
}
- image->references [i] = NULL;
+
+ mono_assembly_invoke_load_hook (ass);
return ass;
}
+MonoAssembly*
+mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
+{
+ MonoAssembly *result;
+ char *fullpath, *filename;
+
+#ifdef PLATFORM_WIN32
+ init_default_path ();
+#endif
+ check_env ();
+
+ result = invoke_assembly_preload_hook (aname, assemblies_path);
+ if (result)
+ return result;
+
+ /* g_print ("loading %s\n", aname->name); */
+ /* special case corlib */
+ if ((strcmp (aname->name, "mscorlib") == 0) || (strcmp (aname->name, "corlib") == 0)) {
+ if (corlib) {
+ /* g_print ("corlib already loaded\n"); */
+ return corlib;
+ }
+ /* g_print ("corlib load\n"); */
+ if (assemblies_path) {
+ corlib = load_in_path (CORLIB_NAME, (const char**)assemblies_path, status);
+ if (corlib)
+ return corlib;
+ }
+ corlib = load_in_path (CORLIB_NAME, default_path, status);
+ return corlib;
+ }
+ result = search_loaded (aname);
+ if (result)
+ return result;
+ /* g_print ("%s not found in cache\n", aname->name); */
+ if (strstr (aname->name, ".dll"))
+ filename = g_strdup (aname->name);
+ else
+ filename = g_strconcat (aname->name, ".dll", NULL);
+ if (basedir) {
+ fullpath = g_build_filename (basedir, filename, NULL);
+ result = mono_assembly_open (fullpath, status);
+ g_free (fullpath);
+ if (result) {
+ g_free (filename);
+ return result;
+ }
+ }
+ if (assemblies_path) {
+ result = load_in_path (filename, (const char**)assemblies_path, status);
+ if (result) {
+ g_free (filename);
+ return result;
+ }
+ }
+ result = load_in_path (filename, default_path, status);
+ g_free (filename);
+ return result;
+}
+
void
mono_assembly_close (MonoAssembly *assembly)
{
if (--assembly->ref_count != 0)
return;
+ loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
image = assembly->image;
- for (i = 0; image->references [i] != NULL; i++)
- mono_image_close (image->references [i]->image);
- g_free (image->references);
+ if (image->references) {
+ for (i = 0; image->references [i] != NULL; i++)
+ mono_image_close (image->references [i]->image);
+ g_free (image->references);
+ }
mono_image_close (assembly->image);
- g_hash_table_remove (assemblies, assembly->name);
-
- g_free (assembly->name);
+ g_free (assembly->basedir);
g_free (assembly);
}
-/*
- * Temporary hack until we get AppDomains
+void
+mono_assembly_foreach (GFunc func, gpointer user_data)
+{
+ /* In the future this can do locking of loaded_assemblies */
+
+ g_list_foreach (loaded_assemblies, func, user_data);
+}
+
+/* Holds the assembly of the application, for
+ * System.Diagnostics.Process::MainModule
*/
-GHashTable *
-mono_get_assemblies ()
+static MonoAssembly *main_assembly=NULL;
+
+void
+mono_assembly_set_main (MonoAssembly *assembly)
+{
+ main_assembly=assembly;
+}
+
+MonoAssembly *
+mono_assembly_get_main (void)
{
- return assemblies;
+ return(main_assembly);
}
projects / mono.git / blobdiff