#include "tabledefs.h"
#include "tokentype.h"
#include "metadata-internals.h"
+#include "loader.h"
#include <mono/io-layer/io-layer.h>
+#include <mono/utils/mono-logger.h>
+#include <mono/utils/mono-path.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
static GHashTable *loaded_images_refonly_hash;
static GHashTable *loaded_images_refonly_guid_hash;
+static gboolean debug_assembly_unload = FALSE;
+
+#define mono_images_lock() EnterCriticalSection (&images_mutex)
+#define mono_images_unlock() LeaveCriticalSection (&images_mutex)
static CRITICAL_SECTION images_mutex;
guint32
return NULL;
}
-static gchar *
-canonicalize_path (const char *path)
-{
- gchar *abspath, *pos, *lastpos, *dest;
- int backc;
-
- if (g_path_is_absolute (path)) {
- abspath = g_strdup (path);
- } else {
- gchar *tmpdir = g_get_current_dir ();
- abspath = g_build_filename (tmpdir, path, NULL);
- g_free (tmpdir);
- }
-
- abspath = g_strreverse (abspath);
-
- backc = 0;
- dest = lastpos = abspath;
- pos = strchr (lastpos, G_DIR_SEPARATOR);
-
- while (pos != NULL) {
- int len = pos - lastpos;
- if (len == 1 && lastpos [0] == '.') {
- // nop
- } else if (len == 2 && lastpos [0] == '.' && lastpos [1] == '.') {
- backc++;
- } else if (len > 0) {
- if (backc > 0) {
- backc--;
- } else {
- if (dest != lastpos) strncpy (dest, lastpos, len + 1);
- dest += len + 1;
- }
- }
- lastpos = pos + 1;
- pos = strchr (lastpos, G_DIR_SEPARATOR);
- }
-
- if (dest != lastpos) strcpy (dest, lastpos);
- return g_strreverse (abspath);
-}
-
/**
* mono_images_init:
*
loaded_images_guid_hash = g_hash_table_new (g_str_hash, g_str_equal);
loaded_images_refonly_hash = g_hash_table_new (g_str_hash, g_str_equal);
loaded_images_refonly_guid_hash = g_hash_table_new (g_str_hash, g_str_equal);
+
+ debug_assembly_unload = getenv ("MONO_DEBUG_ASSEMBLY_UNLOAD") != NULL;
+}
+
+/**
+ * mono_images_cleanup:
+ *
+ * Free all resources used by this module.
+ */
+void
+mono_images_cleanup (void)
+{
+ DeleteCriticalSection (&images_mutex);
+
+ g_hash_table_destroy (loaded_images_hash);
+ g_hash_table_destroy (loaded_images_guid_hash);
+ g_hash_table_destroy (loaded_images_refonly_hash);
+ g_hash_table_destroy (loaded_images_refonly_guid_hash);
}
/**
if (strncmp (ptr, "BSJB", 4) == 0){
guint32 version_string_len;
- ptr += 12;
+ ptr += 4;
+ image->md_version_major = read16 (ptr);
+ ptr += 4;
+ image->md_version_minor = read16 (ptr);
+ ptr += 4;
+
version_string_len = read32 (ptr);
ptr += 4;
image->version = g_strndup (ptr, version_string_len);
g_assert (image->heap_guid.data);
g_assert (image->heap_guid.size >= 16);
- image->guid = mono_guid_to_string (image->heap_guid.data);
+ image->guid = mono_guid_to_string ((guint8*)image->heap_guid.data);
return TRUE;
}
return load_tables (image);
}
-void
-mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
- const char *name, guint32 index)
-{
- GHashTable *nspace_table;
- GHashTable *name_cache = image->name_cache;
-
- if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
- nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
- }
- g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
-}
-
static void
load_modules (MonoImage *image, MonoImageOpenStatus *status)
{
MonoTableInfo *t;
+ MonoTableInfo *file_table;
int i;
char *base_dir;
gboolean refonly = image->ref_only;
+ GList *list_iter, *valid_modules = NULL;
if (image->modules)
return;
+ file_table = &image->tables [MONO_TABLE_FILE];
+ for (i = 0; i < file_table->rows; i++) {
+ guint32 cols [MONO_FILE_SIZE];
+ mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
+ if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
+ continue;
+ valid_modules = g_list_prepend (valid_modules, (char*)mono_metadata_string_heap (image, cols [MONO_FILE_NAME]));
+ }
+
t = &image->tables [MONO_TABLE_MODULEREF];
image->modules = g_new0 (MonoImage *, t->rows);
image->module_count = t->rows;
char *module_ref;
const char *name;
guint32 cols [MONO_MODULEREF_SIZE];
+ int valid = 0;
mono_metadata_decode_row (t, i, cols, MONO_MODULEREF_SIZE);
name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
+ for (list_iter = valid_modules; list_iter; list_iter = list_iter->next) {
+ /* be safe with string dups, but we could just compare string indexes */
+ if (strcmp (list_iter->data, name) == 0) {
+ valid = TRUE;
+ break;
+ }
+ }
+ if (!valid)
+ continue;
module_ref = g_build_filename (base_dir, name, NULL);
image->modules [i] = mono_image_open_full (module_ref, status, refonly);
if (image->modules [i]) {
+ mono_image_addref (image->modules [i]);
/* g_print ("loaded module %s from %s (%p)\n", module_ref, image->name, image->assembly); */
}
/*
- * FIXME: what do we do here? it could be a native dll...
- * We should probably do lazy-loading of modules.
+ * FIXME: We should probably do lazy-loading of modules.
*/
if (status)
*status = MONO_IMAGE_OK;
}
g_free (base_dir);
-}
-
-static void
-load_class_names (MonoImage *image)
-{
- MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
- guint32 cols [MONO_TYPEDEF_SIZE];
- const char *name;
- const char *nspace;
- guint32 i, visib, nspace_index;
- GHashTable *name_cache2, *nspace_table;
-
- /* Temporary hash table to avoid lookups in the nspace_table */
- name_cache2 = g_hash_table_new (NULL, NULL);
-
- for (i = 1; i <= t->rows; ++i) {
- mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
- /* nested types are accessed from the nesting name */
- visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
- if (visib > TYPE_ATTRIBUTE_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_ASSEMBLY)
- continue;
- name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
- nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
-
- nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
- nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
- if (!nspace_table) {
- nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
- g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
- nspace_table);
- }
- g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
- }
-
- /* Load type names from EXPORTEDTYPES table */
- {
- MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
- guint32 cols [MONO_EXP_TYPE_SIZE];
- int i;
-
- for (i = 0; i < t->rows; ++i) {
- mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
- name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
- nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
-
- nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
- nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
- if (!nspace_table) {
- nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
- g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
- nspace_table);
- }
- g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
- }
- }
-
- g_hash_table_destroy (name_cache2);
+ g_list_free (valid_modules);
}
static void
image->method_cache = g_hash_table_new (NULL, NULL);
image->class_cache = g_hash_table_new (NULL, NULL);
image->field_cache = g_hash_table_new (NULL, NULL);
- image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
- image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
image->delegate_begin_invoke_cache =
g_hash_table_new ((GHashFunc)mono_signature_hash,
image->managed_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
image->native_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
image->remoting_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->cominterop_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->cominterop_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
image->synchronized_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
image->unbox_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->ldfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->ldflda_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->ldfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->stfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->stfld_remote_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->castclass_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+ image->proxy_isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
+
image->typespec_cache = g_hash_table_new (NULL, NULL);
image->memberref_signatures = g_hash_table_new (NULL, NULL);
image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
+ image->method_signatures = g_hash_table_new (NULL, NULL);
}
static MonoImage *
if (!load_metadata (image, iinfo))
goto invalid_image;
- load_class_names (image);
-
/* modules don't have an assembly table row */
if (image->tables [MONO_TABLE_ASSEMBLY].rows)
image->assembly_name = mono_metadata_string_heap (image,
if (status)
*status = MONO_IMAGE_OK;
- image->ref_count=1;
-
return image;
invalid_image:
return NULL;
}
image = g_new0 (MonoImage, 1);
- image->ref_count = 1;
image->file_descr = filed;
image->raw_data_len = stat_buf.st_size;
image->raw_data = mono_raw_buffer_load (fileno (filed), FALSE, 0, stat_buf.st_size);
iinfo = g_new0 (MonoCLIImageInfo, 1);
image->image_info = iinfo;
- image->name = canonicalize_path (fname);
+ image->name = mono_path_resolve_symlinks (fname);
image->ref_only = refonly;
+ image->ref_count = 1;
return do_mono_image_load (image, status, care_about_cli);
}
MonoImage *res;
GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
- EnterCriticalSection (&images_mutex);
+ mono_images_lock ();
res = g_hash_table_lookup (loaded_images, name);
- LeaveCriticalSection (&images_mutex);
+ mono_images_unlock ();
return res;
}
MonoImage *res;
GHashTable *loaded_images = refonly ? loaded_images_refonly_guid_hash : loaded_images_guid_hash;
- EnterCriticalSection (&images_mutex);
+ mono_images_lock ();
res = g_hash_table_lookup (loaded_images, guid);
- LeaveCriticalSection (&images_mutex);
+ mono_images_unlock ();
return res;
}
MonoImage *image2;
GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
- EnterCriticalSection (&images_mutex);
+ mono_images_lock ();
image2 = g_hash_table_lookup (loaded_images, image->name);
if (image2) {
/* Somebody else beat us to it */
mono_image_addref (image2);
- LeaveCriticalSection (&images_mutex);
+ mono_images_unlock ();
mono_image_close (image);
return image2;
}
if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == NULL))
g_hash_table_insert (loaded_images, (char *) image->assembly_name, image);
g_hash_table_insert (image->ref_only ? loaded_images_refonly_guid_hash : loaded_images_guid_hash, image->guid, image);
- LeaveCriticalSection (&images_mutex);
+ mono_images_unlock ();
return image;
}
}
image = g_new0 (MonoImage, 1);
- image->ref_count = 1;
image->raw_data = datac;
image->raw_data_len = data_len;
image->raw_data_allocated = need_copy;
g_return_val_if_fail (fname != NULL, NULL);
- absfname = canonicalize_path (fname);
+ absfname = mono_path_canonicalize (fname);
/*
* The easiest solution would be to do all the loading inside the mutex,
* happen outside the mutex, and if multiple threads happen to load
* the same image, we discard all but the first copy.
*/
- EnterCriticalSection (&images_mutex);
+ mono_images_lock ();
loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
image = g_hash_table_lookup (loaded_images, absfname);
g_free (absfname);
if (image){
mono_image_addref (image);
- LeaveCriticalSection (&images_mutex);
+ mono_images_unlock ();
return image;
}
- LeaveCriticalSection (&images_mutex);
+ mono_images_unlock ();
image = do_mono_image_open (fname, status, TRUE, refonly);
if (image == NULL)
* @fname: filename that points to the module we want to open
* @status: An error condition is returned in this field
*
- * Returns: An open image of type %MonoImage or NULL on error.
+ * Returns: An open image of type %MonoImage or NULL on error.
+ * The caller holds a temporary reference to the returned image which should be cleared
+ * when no longer needed by calling mono_image_close ().
* if NULL, then check the value of @status for details on the error
*/
MonoImage *
g_hash_table_destroy ((GHashTable*)val);
}
+/*
static void
free_mr_signatures (gpointer key, gpointer val, gpointer user_data)
{
mono_metadata_free_method_signature ((MonoMethodSignature*)val);
}
+*/
+
+static void
+free_blob_cache_entry (gpointer key, gpointer val, gpointer user_data)
+{
+ g_free (key);
+}
static void
free_remoting_wrappers (gpointer key, gpointer val, gpointer user_data)
g_free (val);
}
+static void
+free_array_cache_entry (gpointer key, gpointer val, gpointer user_data)
+{
+ g_slist_free ((GSList*)val);
+}
+
/**
* mono_image_addref:
* @image: The image file we wish to add a reference to
g_return_if_fail (image != NULL);
- if (InterlockedDecrement (&image->ref_count))
+ if (InterlockedDecrement (&image->ref_count) > 0)
return;
+
+ mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading image %s [%p].", image->name, image);
- EnterCriticalSection (&images_mutex);
+ mono_images_lock ();
loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
loaded_images_guid = image->ref_only ? loaded_images_refonly_guid_hash : loaded_images_guid_hash;
image2 = g_hash_table_lookup (loaded_images, image->name);
/* This is not true if we are called from mono_image_open () */
g_hash_table_remove (loaded_images, image->name);
g_hash_table_remove (loaded_images_guid, image->guid);
- /* Multiple images might have the same guid */
- build_guid_table (image->ref_only);
}
if (image->assembly_name && (g_hash_table_lookup (loaded_images, image->assembly_name) == image))
g_hash_table_remove (loaded_images, (char *) image->assembly_name);
- LeaveCriticalSection (&images_mutex);
+
+ /* Multiple images might have the same guid */
+ build_guid_table (image->ref_only);
+
+ mono_images_unlock ();
if (image->file_descr) {
fclose (image->file_descr);
g_free (image->raw_data);
}
- g_free (image->name);
- g_free (image->guid);
- g_free (image->files);
+
+ if (debug_assembly_unload) {
+ image->name = g_strdup_printf ("%s - UNLOADED", image->name);
+ } else {
+ g_free (image->name);
+ g_free (image->guid);
+ g_free (image->version);
+ g_free (image->files);
+ }
g_hash_table_destroy (image->method_cache);
g_hash_table_destroy (image->class_cache);
g_hash_table_destroy (image->field_cache);
- g_hash_table_destroy (image->array_cache);
- g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
- g_hash_table_destroy (image->name_cache);
+ if (image->array_cache) {
+ g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
+ g_hash_table_destroy (image->array_cache);
+ }
+ if (image->ptr_cache)
+ g_hash_table_destroy (image->ptr_cache);
+ if (image->name_cache) {
+ g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
+ g_hash_table_destroy (image->name_cache);
+ }
g_hash_table_destroy (image->native_wrapper_cache);
g_hash_table_destroy (image->managed_wrapper_cache);
g_hash_table_destroy (image->delegate_begin_invoke_cache);
g_hash_table_destroy (image->runtime_invoke_cache);
g_hash_table_destroy (image->synchronized_cache);
g_hash_table_destroy (image->unbox_wrapper_cache);
+ g_hash_table_destroy (image->cominterop_invoke_cache);
+ g_hash_table_destroy (image->cominterop_wrapper_cache);
g_hash_table_destroy (image->typespec_cache);
- g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
+ g_hash_table_destroy (image->ldfld_wrapper_cache);
+ g_hash_table_destroy (image->ldflda_wrapper_cache);
+ g_hash_table_destroy (image->ldfld_remote_wrapper_cache);
+ g_hash_table_destroy (image->stfld_wrapper_cache);
+ g_hash_table_destroy (image->stfld_remote_wrapper_cache);
+ g_hash_table_destroy (image->isinst_cache);
+ g_hash_table_destroy (image->castclass_cache);
+ g_hash_table_destroy (image->proxy_isinst_cache);
+
+ /* The ownership of signatures is not well defined */
+ //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
g_hash_table_destroy (image->memberref_signatures);
- g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
+ //g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
g_hash_table_destroy (image->helper_signatures);
-
+ g_hash_table_destroy (image->method_signatures);
+
+ if (image->interface_bitset) {
+ mono_unload_interface_ids (image->interface_bitset);
+ mono_bitset_free (image->interface_bitset);
+ }
if (image->image_info){
MonoCLIImageInfo *ii = image->image_info;
if (image->modules [i])
mono_image_close (image->modules [i]);
}
+ if (image->modules)
+ g_free (image->modules);
+ if (image->references)
+ g_free (image->references);
/*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
if (!image->dynamic) {
- mono_mempool_destroy (image->mempool);
- g_free (image);
+ if (debug_assembly_unload)
+ mono_mempool_invalidate (image->mempool);
+ else {
+ mono_mempool_destroy (image->mempool);
+ g_free (image);
+ }
} else {
/* Dynamic images are GC_MALLOCed */
struct _MonoDynamicImage *di = (struct _MonoDynamicImage*)image;
g_hash_table_destroy (di->handleref);
if (di->tokens)
mono_g_hash_table_destroy (di->tokens);
- if (di->blob_cache)
+ if (di->blob_cache) {
+ g_hash_table_foreach (di->blob_cache, free_blob_cache_entry, NULL);
g_hash_table_destroy (di->blob_cache);
+ }
g_list_free (di->array_methods);
if (di->gen_params)
g_ptr_array_free (di->gen_params, TRUE);
}
}
+/**
+ * mono_image_lookup_resource:
+ * @image: the image to look up the resource in
+ * @res_id: A MONO_PE_RESOURCE_ID_ that represents the resource ID to lookup.
+ * @lang_id: The language id.
+ * @name: the resource name to lookup.
+ *
+ * Returns: NULL if not found, otherwise a pointer to the in-memory representation
+ * of the given resource.
+ */
gpointer
mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
{
return(NULL);
}
+/**
+ * mono_image_get_entry_point:
+ * @image: the image where the entry point will be looked up.
+ *
+ * Use this routine to determine the metadata token for method that
+ * has been flagged as the entry point.
+ *
+ * Returns: the token for the entry point method in the image
+ */
guint32
mono_image_get_entry_point (MonoImage *image)
{
return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
}
+/**
+ * mono_image_get_resource:
+ * @image: the image where the resource will be looked up.
+ * @offset: The offset to add to the resource
+ * @size: a pointer to an int where the size of the resource will be stored
+ *
+ * This is a low-level routine that fetches a resource from the
+ * metadata that starts at a given @offset. The @size parameter is
+ * filled with the data field as encoded in the metadata.
+ *
+ * Returns: the pointer to the resource whose offset is @offset.
+ */
const char*
mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
{
projects / mono.git / blobdiff