* image.c: Routines for manipulating an image stored in an
* extended PE/COFF file.
*
- * Author:
+ * Authors:
* Miguel de Icaza (miguel@ximian.com)
+ * Paolo Molaro (lupus@ximian.com)
*
- * (C) 2001 Ximian, Inc. http://www.ximian.com
+ * (C) 2001-2003 Ximian, Inc. http://www.ximian.com
*
- * TODO:
- * Implement big-endian versions of the reading routines.
*/
#include <config.h>
#include <stdio.h>
#include "cil-coff.h"
#include "rawbuffer.h"
#include "mono-endian.h"
-#include "private.h"
#include "tabledefs.h"
#include "tokentype.h"
+#include "metadata-internals.h"
+#include <mono/io-layer/io-layer.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
#define INVALID_ADDRESS 0xffffffff
*/
static GHashTable *loaded_images_hash;
static GHashTable *loaded_images_guid_hash;
+static GHashTable *loaded_images_refonly_hash;
+static GHashTable *loaded_images_refonly_guid_hash;
+#define mono_images_lock() EnterCriticalSection (&images_mutex)
+#define mono_images_unlock() LeaveCriticalSection (&images_mutex)
+static CRITICAL_SECTION images_mutex;
guint32
mono_cli_rva_image_map (MonoCLIImageInfo *iinfo, guint32 addr)
}
char *
-mono_cli_rva_map (MonoCLIImageInfo *iinfo, guint32 addr)
+mono_image_rva_map (MonoImage *image, guint32 addr)
{
+ MonoCLIImageInfo *iinfo = image->image_info;
const int top = iinfo->cli_section_count;
MonoSectionTable *tables = iinfo->cli_section_tables;
int i;
for (i = 0; i < top; i++){
if ((addr >= tables->st_virtual_address) &&
(addr < tables->st_virtual_address + tables->st_raw_data_size)){
+ if (!iinfo->cli_sections [i]) {
+ if (!mono_image_ensure_section_idx (image, i))
+ return NULL;
+ }
return (char*)iinfo->cli_sections [i] +
(addr - tables->st_virtual_address);
}
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:
+ *
+ * Initialize the global variables used by this module.
+ */
+void
+mono_images_init (void)
+{
+ InitializeCriticalSection (&images_mutex);
+
+ loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
+ 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);
+}
+
/**
* mono_image_ensure_section_idx:
* @image: The image we are operating on
writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
- iinfo->cli_sections [section] = mono_raw_buffer_load (
- fileno (image->f), writable,
- sect->st_raw_data_ptr, sect->st_raw_data_size);
-
- if (iinfo->cli_sections [section] == NULL)
+ if (sect->st_raw_data_ptr + sect->st_raw_data_size > image->raw_data_len)
return FALSE;
-
+ /* FIXME: we ignore the writable flag since we don't patch the binary */
+ iinfo->cli_sections [section] = image->raw_data + sect->st_raw_data_ptr;
return TRUE;
}
}
static int
-load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo)
+load_section_tables (MonoImage *image, MonoCLIImageInfo *iinfo, guint32 offset)
{
const int top = iinfo->cli_header.coff.coff_sections;
int i;
for (i = 0; i < top; i++){
MonoSectionTable *t = &iinfo->cli_section_tables [i];
-
- if (fread (t, sizeof (MonoSectionTable), 1, image->f) != 1)
+
+ if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
return FALSE;
+ memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
+ offset += sizeof (MonoSectionTable);
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
/* consistency checks here */
}
- for (i = 0; i < top; i++)
- if (!mono_image_ensure_section_idx (image, i))
- return FALSE;
-
return TRUE;
}
load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo)
{
guint32 offset;
- int n;
offset = mono_cli_rva_image_map (iinfo, iinfo->cli_header.datadir.pe_cli_header.rva);
if (offset == INVALID_ADDRESS)
return FALSE;
- if (fseek (image->f, offset, SEEK_SET) != 0)
- return FALSE;
-
- if ((n = fread (&iinfo->cli_cli_header, sizeof (MonoCLIHeader), 1, image->f)) != 1)
+ if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
return FALSE;
+ memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
#define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
char *ptr;
offset = mono_cli_rva_image_map (iinfo, iinfo->cli_cli_header.ch_metadata.rva);
+ if (offset == INVALID_ADDRESS)
+ return FALSE;
+
size = iinfo->cli_cli_header.ch_metadata.size;
-
- image->raw_metadata = mono_raw_buffer_load (fileno (image->f), FALSE, offset, size);
- if (image->raw_metadata == NULL)
+
+ if (offset + size > image->raw_data_len)
return FALSE;
+ image->raw_metadata = image->raw_data + offset;
ptr = image->raw_metadata;
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);
ptr += version_string_len;
pad = ptr - image->raw_metadata;
if (pad % 4)
return FALSE;
} else {
g_message ("Unknown heap type: %s\n", ptr + 8);
- ptr += 8 + strlen (ptr) + 1;
+ ptr += 8 + strlen (ptr + 8) + 1;
}
pad = ptr - image->raw_metadata;
if (pad % 4)
for (table = 0; table < 64; table++){
if ((valid_mask & ((guint64) 1 << table)) == 0){
+ if (table > MONO_TABLE_LAST)
+ continue;
image->tables [table].rows = 0;
continue;
}
- if (table > 0x2b) {
- g_warning("bits in valid must be zero above 0x2b (II - 23.1.6)");
+ if (table > MONO_TABLE_LAST) {
+ g_warning("bits in valid must be zero above 0x2d (II - 23.1.6)");
+ } else {
+ image->tables [table].rows = read32 (rows);
}
/*if ((sorted_mask & ((guint64) 1 << table)) == 0){
g_print ("table %s (0x%02x) is sorted\n", mono_meta_table_name (table), table);
}*/
- image->tables [table].rows = read32 (rows);
rows++;
valid++;
}
MonoTableInfo *t;
int i;
char *base_dir;
+ gboolean refonly = image->ref_only;
if (image->modules)
return;
t = &image->tables [MONO_TABLE_MODULEREF];
image->modules = g_new0 (MonoImage *, t->rows);
+ image->module_count = t->rows;
base_dir = g_path_get_dirname (image->name);
for (i = 0; i < t->rows; i++){
char *module_ref;
mono_metadata_decode_row (t, i, cols, MONO_MODULEREF_SIZE);
name = mono_metadata_string_heap (image, cols [MONO_MODULEREF_NAME]);
module_ref = g_build_filename (base_dir, name, NULL);
- image->modules [i] = mono_image_open (module_ref, status);
+ image->modules [i] = mono_image_open_full (module_ref, status, refonly);
+ if (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.
*status = MONO_IMAGE_OK;
g_free (module_ref);
}
+
g_free (base_dir);
}
guint32 cols [MONO_TYPEDEF_SIZE];
const char *name;
const char *nspace;
- guint32 i, visib;
+ 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);
continue;
name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
- mono_image_add_to_name_cache (image, nspace, name, i);
+
+ 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);
}
-static MonoImage *
-do_mono_image_open (const char *fname, MonoImageOpenStatus *status)
+static void
+register_guid (gpointer key, gpointer value, gpointer user_data)
{
- MonoCLIImageInfo *iinfo;
- MonoDotNetHeader *header;
- MonoMSDOSHeader msdos;
- MonoImage *image;
- int n;
+ MonoImage *image = (MonoImage*)value;
- image = g_new0 (MonoImage, 1);
- image->ref_count = 1;
- image->f = fopen (fname, "rb");
- image->name = g_strdup (fname);
- iinfo = g_new0 (MonoCLIImageInfo, 1);
- image->image_info = iinfo;
+ if (!g_hash_table_lookup (loaded_images_guid_hash, image))
+ g_hash_table_insert (loaded_images_guid_hash, image->guid, image);
+}
+
+static void
+build_guid_table (gboolean refonly)
+{
+ GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
+ g_hash_table_foreach (loaded_images, register_guid, NULL);
+}
- image->method_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
- image->class_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
+void
+mono_image_init (MonoImage *image)
+{
+ image->mempool = mono_mempool_new ();
+ 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 ((GHashFunc)mono_metadata_type_hash,
- (GCompareFunc)mono_metadata_type_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->delegate_invoke_cache =
g_hash_table_new ((GHashFunc)mono_signature_hash,
(GCompareFunc)mono_metadata_signature_equal);
+ image->runtime_invoke_cache =
+ g_hash_table_new ((GHashFunc)mono_signature_hash,
+ (GCompareFunc)mono_metadata_signature_equal);
+
+ 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->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->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->runtime_invoke_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
- image->managed_wrapper_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
- image->native_wrapper_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
- image->remoting_invoke_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
+static MonoImage *
+do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status,
+ gboolean care_about_cli)
+{
+ MonoCLIImageInfo *iinfo;
+ MonoDotNetHeader *header;
+ MonoMSDOSHeader msdos;
+ guint32 offset = 0;
+ mono_image_init (image);
+
+ iinfo = image->image_info;
header = &iinfo->cli_header;
- if (image->f == NULL){
- if (status)
- *status = MONO_IMAGE_ERROR_ERRNO;
- mono_image_close (image);
- return NULL;
- }
-
if (status)
*status = MONO_IMAGE_IMAGE_INVALID;
-
- if (fread (&msdos, sizeof (msdos), 1, image->f) != 1)
+
+ if (offset + sizeof (msdos) > image->raw_data_len)
goto invalid_image;
+ memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
if (!(msdos.msdos_sig [0] == 'M' && msdos.msdos_sig [1] == 'Z'))
goto invalid_image;
msdos.pe_offset = GUINT32_FROM_LE (msdos.pe_offset);
- if (msdos.pe_offset != sizeof (msdos))
- fseek (image->f, msdos.pe_offset, SEEK_SET);
-
- if ((n = fread (header, sizeof (MonoDotNetHeader), 1, image->f)) != 1)
+ offset = msdos.pe_offset;
+
+ if (offset + sizeof (MonoDotNetHeader) > image->raw_data_len)
goto invalid_image;
+ memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
+ offset += sizeof (MonoDotNetHeader);
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
#define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
* FIXME: byte swap all addresses here for header.
*/
- if (!load_section_tables (image, iinfo))
+ if (!load_section_tables (image, iinfo, offset))
goto invalid_image;
+ if (care_about_cli == FALSE) {
+ goto done;
+ }
+
/* Load the CLI header */
if (!load_cli_header (image, iinfo))
goto invalid_image;
load_modules (image, status);
+done:
if (status)
*status = MONO_IMAGE_OK;
return NULL;
}
+static MonoImage *
+do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
+ gboolean care_about_cli, gboolean refonly)
+{
+ MonoCLIImageInfo *iinfo;
+ MonoImage *image;
+ FILE *filed;
+ struct stat stat_buf;
+
+ if ((filed = fopen (fname, "rb")) == NULL){
+ if (status)
+ *status = MONO_IMAGE_ERROR_ERRNO;
+ return NULL;
+ }
+
+ if (fstat (fileno (filed), &stat_buf)) {
+ fclose (filed);
+ if (status)
+ *status = MONO_IMAGE_ERROR_ERRNO;
+ 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->ref_only = refonly;
+
+ return do_mono_image_load (image, status, care_about_cli);
+}
+
MonoImage *
-mono_image_loaded (const char *name) {
- if (strcmp (name, "mscorlib") == 0)
- name = "corlib";
- if (loaded_images_hash)
- return g_hash_table_lookup (loaded_images_hash, name);
- return NULL;
+mono_image_loaded_full (const char *name, gboolean refonly)
+{
+ MonoImage *res;
+ GHashTable *loaded_images = refonly ? loaded_images_refonly_hash : loaded_images_hash;
+
+ mono_images_lock ();
+ res = g_hash_table_lookup (loaded_images, name);
+ mono_images_unlock ();
+ return res;
}
MonoImage *
-mono_image_loaded_by_guid (const char *guid) {
- if (loaded_images_guid_hash)
- return g_hash_table_lookup (loaded_images_guid_hash, guid);
- return NULL;
+mono_image_loaded (const char *name)
+{
+ return mono_image_loaded_full (name, FALSE);
}
-/**
- * mono_image_open:
- * @fname: filename that points to the module we want to open
- * @status: An error condition is returned in this field
- *
- * Retuns: An open image of type %MonoImage or NULL on error.
- * if NULL, then check the value of @status for details on the error
- */
MonoImage *
-mono_image_open (const char *fname, MonoImageOpenStatus *status)
+mono_image_loaded_by_guid_full (const char *guid, gboolean refonly)
{
+ MonoImage *res;
+ GHashTable *loaded_images = refonly ? loaded_images_refonly_guid_hash : loaded_images_guid_hash;
+
+ mono_images_lock ();
+ res = g_hash_table_lookup (loaded_images, guid);
+ mono_images_unlock ();
+ return res;
+}
+
+MonoImage *
+mono_image_loaded_by_guid (const char *guid)
+{
+ return mono_image_loaded_by_guid_full (guid, FALSE);
+}
+
+static MonoImage *
+register_image (MonoImage *image)
+{
+ MonoImage *image2;
+ GHashTable *loaded_images = image->ref_only ? loaded_images_refonly_hash : loaded_images_hash;
+
+ mono_images_lock ();
+ image2 = g_hash_table_lookup (loaded_images, image->name);
+
+ if (image2) {
+ /* Somebody else beat us to it */
+ mono_image_addref (image2);
+ mono_images_unlock ();
+ mono_image_close (image);
+ return image2;
+ }
+ g_hash_table_insert (loaded_images, image->name, image);
+ 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);
+ mono_images_unlock ();
+
+ return image;
+}
+
+MonoImage *
+mono_image_open_from_data_full (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly)
+{
+ MonoCLIImageInfo *iinfo;
MonoImage *image;
-
- g_return_val_if_fail (fname != NULL, NULL);
+ char *datac;
- if (loaded_images_hash){
- image = g_hash_table_lookup (loaded_images_hash, fname);
- if (image){
- image->ref_count++;
- return image;
+ if (!data || !data_len) {
+ if (status)
+ *status = MONO_IMAGE_IMAGE_INVALID;
+ return NULL;
+ }
+ datac = data;
+ if (need_copy) {
+ datac = g_try_malloc (data_len);
+ if (!datac) {
+ if (status)
+ *status = MONO_IMAGE_ERROR_ERRNO;
+ return NULL;
}
+ memcpy (datac, data, data_len);
}
- image = do_mono_image_open (fname, status);
+ 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;
+ image->name = g_strdup_printf ("data-%p", datac);
+ iinfo = g_new0 (MonoCLIImageInfo, 1);
+ image->image_info = iinfo;
+ image->ref_only = refonly;
+
+ image = do_mono_image_load (image, status, TRUE);
if (image == NULL)
return NULL;
- if (!loaded_images_hash)
- loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_insert (loaded_images_hash, image->name, image);
- if (image->assembly_name)
- g_hash_table_insert (loaded_images_hash, (char *) image->assembly_name, image);
+ return register_image (image);
+}
+
+MonoImage *
+mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
+{
+ return mono_image_open_from_data_full (data, data_len, need_copy, status, FALSE);
+}
+
+MonoImage *
+mono_image_open_full (const char *fname, MonoImageOpenStatus *status, gboolean refonly)
+{
+ MonoImage *image;
+ GHashTable *loaded_images;
+ char *absfname;
- if (!loaded_images_guid_hash)
- loaded_images_guid_hash = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_insert (loaded_images_guid_hash, image->guid, image);
+ g_return_val_if_fail (fname != NULL, NULL);
+
+ absfname = canonicalize_path (fname);
- return image;
+ /*
+ * The easiest solution would be to do all the loading inside the mutex,
+ * but that would lead to scalability problems. So we let the loading
+ * happen outside the mutex, and if multiple threads happen to load
+ * the same image, we discard all but the first copy.
+ */
+ 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);
+ mono_images_unlock ();
+ return image;
+ }
+ mono_images_unlock ();
+
+ image = do_mono_image_open (fname, status, TRUE, refonly);
+ if (image == NULL)
+ return NULL;
+
+ return register_image (image);
+}
+
+/**
+ * mono_image_open:
+ * @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.
+ * if NULL, then check the value of @status for details on the error
+ */
+MonoImage *
+mono_image_open (const char *fname, MonoImageOpenStatus *status)
+{
+ return mono_image_open_full (fname, status, FALSE);
+}
+
+/**
+ * mono_pe_file_open:
+ * @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. if
+ * NULL, then check the value of @status for details on the error.
+ * This variant for mono_image_open DOES NOT SET UP CLI METADATA.
+ * It's just a PE file loader, used for FileVersionInfo. It also does
+ * not use the image cache.
+ */
+MonoImage *
+mono_pe_file_open (const char *fname, MonoImageOpenStatus *status)
+{
+ g_return_val_if_fail (fname != NULL, NULL);
+
+ return(do_mono_image_open (fname, status, FALSE, FALSE));
}
static void
-free_hash_table(gpointer key, gpointer val, gpointer user_data)
+free_hash_table (gpointer key, gpointer val, gpointer user_data)
{
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_remoting_wrappers (gpointer key, gpointer val, gpointer user_data)
+{
+ g_free (val);
+}
+
+/**
+ * mono_image_addref:
+ * @image: The image file we wish to add a reference to
+ *
+ * Increases the reference count of an image.
+ */
+void
+mono_image_addref (MonoImage *image)
+{
+ InterlockedIncrement (&image->ref_count);
+}
+
+void
+mono_dynamic_stream_reset (MonoDynamicStream* stream)
+{
+ stream->alloc_size = stream->index = stream->offset = 0;
+ g_free (stream->data);
+ stream->data = NULL;
+ if (stream->hash) {
+ g_hash_table_destroy (stream->hash);
+ stream->hash = NULL;
+ }
+}
+
/**
* mono_image_close:
* @image: The image file we wish to close
void
mono_image_close (MonoImage *image)
{
+ MonoImage *image2;
+ GHashTable *loaded_images, *loaded_images_guid;
+ int i;
+
g_return_if_fail (image != NULL);
- if (--image->ref_count)
+ if (InterlockedDecrement (&image->ref_count))
return;
-
- if (!loaded_images_hash)
- loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_remove (loaded_images_hash, image->name);
- if (image->f)
- fclose (image->f);
+ 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);
+ if (image == image2) {
+ /* 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);
+ mono_images_unlock ();
+
+ if (image->file_descr) {
+ fclose (image->file_descr);
+ image->file_descr = NULL;
+ if (image->raw_data != NULL)
+ mono_raw_buffer_free (image->raw_data);
+ }
+
+ if (image->raw_data_allocated) {
+ /* image->raw_metadata and cli_sections might lie inside image->raw_data */
+ MonoCLIImageInfo *ii = image->image_info;
+ if ((image->raw_metadata > image->raw_data) &&
+ (image->raw_metadata <= (image->raw_data + image->raw_data_len)))
+ image->raw_metadata = NULL;
+
+ for (i = 0; i < ii->cli_section_count; i++)
+ if (((char*)(ii->cli_sections [i]) > image->raw_data) &&
+ ((char*)(ii->cli_sections [i]) <= ((char*)image->raw_data + image->raw_data_len)))
+ ii->cli_sections [i] = NULL;
+
+ g_free (image->raw_data);
+ }
g_free (image->name);
+ g_free (image->guid);
+ 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);
g_hash_table_destroy (image->delegate_begin_invoke_cache);
g_hash_table_destroy (image->delegate_end_invoke_cache);
g_hash_table_destroy (image->delegate_invoke_cache);
+ g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
g_hash_table_destroy (image->remoting_invoke_cache);
g_hash_table_destroy (image->runtime_invoke_cache);
-
- if (image->raw_metadata != NULL)
- mono_raw_buffer_free (image->raw_metadata);
+ g_hash_table_destroy (image->synchronized_cache);
+ g_hash_table_destroy (image->unbox_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->memberref_signatures);
+ g_hash_table_foreach (image->helper_signatures, free_mr_signatures, NULL);
+ g_hash_table_destroy (image->helper_signatures);
if (image->image_info){
MonoCLIImageInfo *ii = image->image_info;
- int i;
- for (i = 0; i < ii->cli_section_count; i++){
- if (!ii->cli_sections [i])
- continue;
- mono_raw_buffer_free (ii->cli_sections [i]);
- }
if (ii->cli_section_tables)
g_free (ii->cli_section_tables);
if (ii->cli_sections)
g_free (ii->cli_sections);
g_free (image->image_info);
}
-
- g_free (image);
+
+ for (i = 0; i < image->module_count; ++i) {
+ if (image->modules [i])
+ mono_image_close (image->modules [i]);
+ }
+ /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
+ if (!image->dynamic) {
+ mono_mempool_destroy (image->mempool);
+ g_free (image);
+ } else {
+ /* Dynamic images are GC_MALLOCed */
+ struct _MonoDynamicImage *di = (struct _MonoDynamicImage*)image;
+ int i;
+ g_free ((char*)image->module_name);
+ if (di->typespec)
+ g_hash_table_destroy (di->typespec);
+ if (di->typeref)
+ g_hash_table_destroy (di->typeref);
+ if (di->handleref)
+ g_hash_table_destroy (di->handleref);
+ if (di->tokens)
+ mono_g_hash_table_destroy (di->tokens);
+ if (di->blob_cache)
+ 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);
+ if (di->token_fixups)
+ mono_g_hash_table_destroy (di->token_fixups);
+ if (di->method_to_table_idx)
+ g_hash_table_destroy (di->method_to_table_idx);
+ if (di->field_to_table_idx)
+ g_hash_table_destroy (di->field_to_table_idx);
+ if (di->method_aux_hash)
+ g_hash_table_destroy (di->method_aux_hash);
+ g_free (di->strong_name);
+ g_free (di->win32_res);
+ /*g_print ("string heap destroy for image %p\n", di);*/
+ mono_dynamic_stream_reset (&di->sheap);
+ mono_dynamic_stream_reset (&di->code);
+ mono_dynamic_stream_reset (&di->resources);
+ mono_dynamic_stream_reset (&di->us);
+ mono_dynamic_stream_reset (&di->blob);
+ mono_dynamic_stream_reset (&di->tstream);
+ mono_dynamic_stream_reset (&di->guid);
+ for (i = 0; i < MONO_TABLE_NUM; ++i) {
+ g_free (di->tables [i].values);
+ }
+ mono_mempool_destroy (image->mempool);
+ }
}
/**
}
#endif
} else if (level==2) {
- if((is_string==FALSE && entry->name_offset!=lang_id) ||
- (is_string==TRUE)) {
+ if ((is_string == FALSE &&
+ entry->name_offset != lang_id &&
+ lang_id != 0) ||
+ (is_string == TRUE)) {
return(NULL);
}
} else {
}
}
+/**
+ * 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);
}
- resource_dir=(MonoPEResourceDir *)mono_cli_rva_map (info, rsrc->rva);
+ resource_dir=(MonoPEResourceDir *)mono_image_rva_map (image, rsrc->rva);
if(resource_dir==NULL) {
return(NULL);
}
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)
{
if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
return NULL;
- data = mono_cli_rva_map (iinfo, ch->ch_resources.rva);
+ data = mono_image_rva_map (image, ch->ch_resources.rva);
if (!data)
return NULL;
data += offset;
return data;
}
+MonoImage*
+mono_image_load_file_for_image (MonoImage *image, int fileidx)
+{
+ char *base_dir, *name;
+ MonoImage *res;
+ MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
+ const char *fname;
+ guint32 fname_id;
+
+ if (fileidx < 1 || fileidx > t->rows)
+ return NULL;
+
+ if (image->files && image->files [fileidx - 1])
+ return image->files [fileidx - 1];
+
+ if (!image->files)
+ image->files = g_new0 (MonoImage*, t->rows);
+
+ fname_id = mono_metadata_decode_row_col (t, fileidx - 1, MONO_FILE_NAME);
+ fname = mono_metadata_string_heap (image, fname_id);
+ base_dir = g_path_get_dirname (image->name);
+ name = g_build_filename (base_dir, fname, NULL);
+ res = mono_image_open (name, NULL);
+ if (res) {
+ int i;
+ /* g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly); */
+ res->assembly = image->assembly;
+ for (i = 0; i < res->module_count; ++i) {
+ if (res->modules [i] && !res->modules [i]->assembly)
+ res->modules [i]->assembly = image->assembly;
+ }
+
+ image->files [fileidx - 1] = res;
+ }
+ g_free (name);
+ g_free (base_dir);
+ return res;
+}
+
const char*
mono_image_get_strong_name (MonoImage *image, guint32 *size)
{
if (!de->size || !de->rva)
return NULL;
- data = mono_cli_rva_map (iinfo, de->rva);
+ data = mono_image_rva_map (image, de->rva);
if (!data)
return NULL;
if (size)
return pubkey;
}
+const char*
+mono_image_get_name (MonoImage *image)
+{
+ return image->assembly_name;
+}
+
+const char*
+mono_image_get_filename (MonoImage *image)
+{
+ return image->name;
+}
+
+const char*
+mono_image_get_guid (MonoImage *image)
+{
+ return image->guid;
+}
+
+const MonoTableInfo*
+mono_image_get_table_info (MonoImage *image, int table_id)
+{
+ if (table_id < 0 || table_id >= MONO_TABLE_NUM)
+ return NULL;
+ return &image->tables [table_id];
+}
+
+int
+mono_image_get_table_rows (MonoImage *image, int table_id)
+{
+ if (table_id < 0 || table_id >= MONO_TABLE_NUM)
+ return 0;
+ return image->tables [table_id].rows;
+}
+
+int
+mono_table_info_get_rows (const MonoTableInfo *table)
+{
+ return table->rows;
+}
+
+MonoAssembly*
+mono_image_get_assembly (MonoImage *image)
+{
+ return image->assembly;
+}
+
+gboolean
+mono_image_is_dynamic (MonoImage *image)
+{
+ return image->dynamic;
+}
+
+gboolean
+mono_image_has_authenticode_entry (MonoImage *image)
+{
+ MonoCLIImageInfo *iinfo = image->image_info;
+ MonoDotNetHeader *header = &iinfo->cli_header;
+ MonoPEDirEntry *de = &header->datadir.pe_certificate_table;
+ // the Authenticode "pre" (non ASN.1) header is 8 bytes long
+ return ((de->rva != 0) && (de->size > 8));
+}
projects / mono.git / blobdiff