* 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 "mono-endian.h"
#include "private.h"
#include "tabledefs.h"
+#include "tokentype.h"
+#include <mono/io-layer/io-layer.h>
#define INVALID_ADDRESS 0xffffffff
* Keeps track of the various assemblies loaded
*/
static GHashTable *loaded_images_hash;
+static GHashTable *loaded_images_guid_hash;
+
+static CRITICAL_SECTION images_mutex;
guint32
mono_cli_rva_image_map (MonoCLIImageInfo *iinfo, guint32 addr)
return NULL;
}
+/**
+ * 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);
+}
+
/**
* mono_image_ensure_section_idx:
* @image: The image we are operating on
writable = sect->st_flags & SECT_FLAGS_MEM_WRITE;
+ if (!image->f) {
+ 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;
+ }
iinfo->cli_sections [section] = mono_raw_buffer_load (
fileno (image->f), writable,
sect->st_raw_data_ptr, sect->st_raw_data_size);
}
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)
- return FALSE;
+
+ if (!image->f) {
+ if (offset + sizeof (MonoSectionTable) > image->raw_data_len)
+ return FALSE;
+ memcpy (t, image->raw_data + offset, sizeof (MonoSectionTable));
+ offset += sizeof (MonoSectionTable);
+ } else {
+ if (fread (t, sizeof (MonoSectionTable), 1, image->f) != 1)
+ return FALSE;
+ }
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
t->st_virtual_size = GUINT32_FROM_LE (t->st_virtual_size);
if (offset == INVALID_ADDRESS)
return FALSE;
- if (fseek (image->f, offset, SEEK_SET) != 0)
- return FALSE;
+ if (!image->f) {
+ if (offset + sizeof (MonoCLIHeader) > image->raw_data_len)
+ return FALSE;
+ memcpy (&iinfo->cli_cli_header, image->raw_data + offset, sizeof (MonoCLIHeader));
+ } else {
+ if (fseek (image->f, offset, SEEK_SET) != 0)
+ return FALSE;
- if ((n = fread (&iinfo->cli_cli_header, sizeof (MonoCLIHeader), 1, image->f)) != 1)
- return FALSE;
+ if ((n = fread (&iinfo->cli_cli_header, sizeof (MonoCLIHeader), 1, image->f)) != 1)
+ return FALSE;
+ }
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
#define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
guint32 offset, size;
guint16 streams;
int i;
+ guint32 pad;
char *ptr;
offset = mono_cli_rva_image_map (iinfo, iinfo->cli_cli_header.ch_metadata.rva);
- 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 == INVALID_ADDRESS)
return FALSE;
+ size = iinfo->cli_cli_header.ch_metadata.size;
+
+ if (!image->f) {
+ if (offset + size > image->raw_data_len)
+ return FALSE;
+ image->raw_metadata = image->raw_data + offset;
+ } else {
+ image->raw_metadata = mono_raw_buffer_load (fileno (image->f), FALSE, offset, size);
+ if (image->raw_metadata == NULL)
+ return FALSE;
+ }
+
ptr = image->raw_metadata;
if (strncmp (ptr, "BSJB", 4) == 0){
ptr += 12;
version_string_len = read32 (ptr);
ptr += 4;
+ image->version = g_strndup (ptr, version_string_len);
ptr += version_string_len;
- if (((guint32) ptr) % 4)
- ptr += 4 - (((guint32) ptr) %4);
+ pad = ptr - image->raw_metadata;
+ if (pad % 4)
+ ptr += 4 - (pad % 4);
} else
return FALSE;
image->heap_guid.data = image->raw_metadata + read32 (ptr);
image->heap_guid.size = read32 (ptr + 4);
ptr += 8 + 6;
+ } else if (strncmp (ptr + 8, "#-", 3) == 0) {
+ g_print ("Assembly '%s' has the non-standard metadata heap #-.\nRecompile it correctly (without the /incremental switch or in Release mode).", image->name);
+ return FALSE;
} else {
g_message ("Unknown heap type: %s\n", ptr + 8);
- ptr += 8 + strlen (ptr) + 1;
- }
- if (((guint32)ptr) % 4){
- ptr += 4 - (((guint32)ptr) % 4);
+ ptr += 8 + strlen (ptr + 8) + 1;
}
+ pad = ptr - image->raw_metadata;
+ if (pad % 4)
+ ptr += 4 - (pad % 4);
}
+
+ g_assert (image->heap_guid.data);
+ g_assert (image->heap_guid.size >= 16);
+
+ image->guid = mono_guid_to_string (image->heap_guid.data);
+
return TRUE;
}
{
const char *heap_tables = image->heap_tables.data;
const guint32 *rows;
- guint64 valid_mask;
+ guint64 valid_mask, sorted_mask;
int valid = 0, table;
int heap_sizes;
image->idx_blob_wide = ((heap_sizes & 0x04) == 4);
valid_mask = read64 (heap_tables + 8);
+ sorted_mask = read64 (heap_tables + 16);
rows = (const guint32 *) (heap_tables + 24);
for (table = 0; table < 64; table++){
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)");
}
+ /*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++;
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;
+ int i;
+ char *base_dir;
+
+ if (image->modules)
+ return;
+
+ t = &image->tables [MONO_TABLE_MODULEREF];
+ image->modules = g_new0 (MonoImage *, t->rows);
+ base_dir = g_path_get_dirname (image->name);
+ for (i = 0; i < t->rows; i++){
+ char *module_ref;
+ const char *name;
+ guint32 cols [MONO_MODULEREF_SIZE];
+
+ 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);
+ 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.
+ */
+ if (status)
+ *status = MONO_IMAGE_OK;
+ g_free (module_ref);
+ }
+
+ g_free (base_dir);
+}
+
static void
load_class_names (MonoImage *image)
{
guint32 cols [MONO_TYPEDEF_SIZE];
const char *name;
const char *nspace;
- GHashTable *nspace_table;
- GHashTable *name_cache = image->name_cache;
- 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);
/* 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)
+ 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]);
- if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
+
+ 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 (name_cache, (char *)nspace, (char *)nspace_table);
+ 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 void
+register_guid (gpointer key, gpointer value, gpointer user_data)
+{
+ MonoImage *image = (MonoImage*)value;
+
+ 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 (void)
+{
+ g_hash_table_foreach (loaded_images_hash, register_guid, NULL);
+}
+
+void
+mono_image_init (MonoImage *image)
+{
+ 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 (NULL, NULL);
+
+ image->delegate_begin_invoke_cache =
+ g_hash_table_new ((GHashFunc)mono_signature_hash,
+ (GCompareFunc)mono_metadata_signature_equal);
+ image->delegate_end_invoke_cache =
+ g_hash_table_new ((GHashFunc)mono_signature_hash,
+ (GCompareFunc)mono_metadata_signature_equal);
+ 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 (NULL, NULL);
+ image->managed_wrapper_cache = g_hash_table_new (NULL, NULL);
+ image->native_wrapper_cache = g_hash_table_new (NULL, NULL);
+ image->remoting_invoke_cache = g_hash_table_new (NULL, NULL);
+ image->synchronized_cache = g_hash_table_new (NULL, NULL);
+
+ image->typespec_cache = g_hash_table_new (NULL, NULL);
+
+ image->generic_inst_cache =
+ g_hash_table_new ((GHashFunc)mono_metadata_generic_inst_hash,
+ (GCompareFunc)mono_metadata_generic_inst_equal);
}
static MonoImage *
-do_mono_image_open (const char *fname, enum MonoImageOpenStatus *status)
+do_mono_image_load (MonoImage *image, MonoImageOpenStatus *status)
{
MonoCLIImageInfo *iinfo;
MonoDotNetHeader *header;
MonoMSDOSHeader msdos;
- MonoImage *image;
int n;
+ guint32 offset = 0;
- image = g_new0 (MonoImage, 1);
- image->f = fopen (fname, "rb");
- image->name = g_strdup (fname);
- iinfo = g_new0 (MonoCLIImageInfo, 1);
- image->image_info = iinfo;
-
- 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);
- image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
- image->array_cache = g_hash_table_new (g_direct_hash, g_direct_equal);
+ 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 (!image->f) {
+ if (offset + sizeof (msdos) > image->raw_data_len)
+ goto invalid_image;
+ memcpy (&msdos, image->raw_data + offset, sizeof (msdos));
+ } else {
+ if (fread (&msdos, sizeof (msdos), 1, image->f) != 1)
+ goto invalid_image;
+ }
- if (fread (&msdos, sizeof (msdos), 1, image->f) != 1)
- goto invalid_image;
-
- if (!(msdos.msdos_header [0] == 'M' && msdos.msdos_header [1] == 'Z'))
+ 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)
- goto invalid_image;
+ if (msdos.pe_offset != sizeof (msdos)) {
+ if (image->f)
+ fseek (image->f, msdos.pe_offset, SEEK_SET);
+ }
+ offset = msdos.pe_offset;
+
+ if (!image->f) {
+ if (offset + sizeof (MonoDotNetHeader) > image->raw_data_len)
+ goto invalid_image;
+ memcpy (header, image->raw_data + offset, sizeof (MonoDotNetHeader));
+ offset += sizeof (MonoDotNetHeader);
+ } else {
+ if ((n = fread (header, sizeof (MonoDotNetHeader), 1, image->f)) != 1)
+ goto invalid_image;
+ }
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
#define SWAP32(x) (x) = GUINT32_FROM_LE ((x))
if (header->pesig[0] != 'P' || header->pesig[1] != 'E' || header->pe.pe_magic != 0x10B)
goto invalid_image;
+#if 0
+ /*
+ * The spec says that this field should contain 6.0, but Visual Studio includes a new compiler,
+ * which produces binaries with 7.0. From Sergey:
+ *
+ * The reason is that MSVC7 uses traditional compile/link
+ * sequence for CIL executables, and VS.NET (and Framework
+ * SDK) includes linker version 7, that puts 7.0 in this
+ * field. That's why it's currently not possible to load VC
+ * binaries with Mono. This field is pretty much meaningless
+ * anyway (what linker?).
+ */
if (header->pe.pe_major != 6 || header->pe.pe_minor != 0)
goto invalid_image;
+#endif
/*
* FIXME: byte swap all addresses here for header.
*/
- if (!load_section_tables (image, iinfo))
+ if (!load_section_tables (image, iinfo, offset))
goto invalid_image;
/* Load the CLI header */
load_class_names (image);
- image->assembly_name = mono_metadata_string_heap (image,
+ /* modules don't have an assembly table row */
+ if (image->tables [MONO_TABLE_ASSEMBLY].rows)
+ image->assembly_name = mono_metadata_string_heap (image,
mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY],
0, MONO_ASSEMBLY_NAME));
+ image->module_name = mono_metadata_string_heap (image,
+ mono_metadata_decode_row_col (&image->tables [MONO_TABLE_MODULE],
+ 0, MONO_MODULE_NAME));
+
+ load_modules (image, status);
+
if (status)
*status = MONO_IMAGE_OK;
+ image->ref_count=1;
+
return image;
invalid_image:
return NULL;
}
+static MonoImage *
+do_mono_image_open (const char *fname, MonoImageOpenStatus *status)
+{
+ MonoCLIImageInfo *iinfo;
+ MonoImage *image;
+ FILE *filed;
+
+ if ((filed = fopen (fname, "rb")) == NULL){
+ if (status)
+ *status = MONO_IMAGE_ERROR_ERRNO;
+ return NULL;
+ }
+
+ image = g_new0 (MonoImage, 1);
+ image->ref_count = 1;
+ image->f = filed;
+ iinfo = g_new0 (MonoCLIImageInfo, 1);
+ image->image_info = iinfo;
+
+ if (g_path_is_absolute (fname))
+ image->name = g_strdup (fname);
+ else {
+ gchar *path = g_get_current_dir ();
+ image->name = g_build_filename (path, fname, NULL);
+ g_free (path);
+ }
+
+ return do_mono_image_load (image, status);
+}
+
MonoImage *
-mono_image_loaded (const char *name) {
- if (loaded_images_hash)
- return g_hash_table_lookup (loaded_images_hash, name);
- return NULL;
+mono_image_loaded (const char *name)
+{
+ MonoImage *res;
+
+ EnterCriticalSection (&images_mutex);
+ res = g_hash_table_lookup (loaded_images_hash, name);
+ LeaveCriticalSection (&images_mutex);
+ return res;
+}
+
+MonoImage *
+mono_image_loaded_by_guid (const char *guid)
+{
+ MonoImage *res;
+
+ EnterCriticalSection (&images_mutex);
+ res = g_hash_table_lookup (loaded_images_guid_hash, guid);
+ LeaveCriticalSection (&images_mutex);
+ return res;
+}
+
+MonoImage *
+mono_image_open_from_data (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status)
+{
+ MonoCLIImageInfo *iinfo;
+ MonoImage *image;
+ char *datac;
+
+ 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 = 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;
+
+ return do_mono_image_load (image, status);
}
/**
* if NULL, then check the value of @status for details on the error
*/
MonoImage *
-mono_image_open (const char *fname, enum MonoImageOpenStatus *status)
+mono_image_open (const char *fname, MonoImageOpenStatus *status)
{
- MonoImage *image;
+ MonoImage *image, *image2;
g_return_val_if_fail (fname != NULL, NULL);
- if (loaded_images_hash){
- image = g_hash_table_lookup (loaded_images_hash, fname);
- if (image){
- image->ref_count++;
- 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.
+ */
+ EnterCriticalSection (&images_mutex);
+ image = g_hash_table_lookup (loaded_images_hash, fname);
+ if (image){
+ image->ref_count++;
+ LeaveCriticalSection (&images_mutex);
+ return image;
}
+ LeaveCriticalSection (&images_mutex);
image = do_mono_image_open (fname, status);
if (image == NULL)
return NULL;
- if (!loaded_images_hash)
- loaded_images_hash = g_hash_table_new (g_str_hash, g_str_equal);
+ EnterCriticalSection (&images_mutex);
+ image2 = g_hash_table_lookup (loaded_images_hash, fname);
+ if (image2) {
+ /* Somebody else beat us to it */
+ image2->ref_count ++;
+ LeaveCriticalSection (&images_mutex);
+ mono_image_close (image);
+
+ return image2;
+ }
g_hash_table_insert (loaded_images_hash, image->name, image);
- g_hash_table_insert (loaded_images_hash, (char *) image->assembly_name, image);
-
+ if (image->assembly_name)
+ g_hash_table_insert (loaded_images_hash, (char *) image->assembly_name, image);
+ g_hash_table_insert (loaded_images_guid_hash, image->guid, image);
+ LeaveCriticalSection (&images_mutex);
+
return image;
}
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);
}
+/**
+ * mono_image_close:
+ * @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);
+}
+
/**
* mono_image_close:
* @image: The image file we wish to close
void
mono_image_close (MonoImage *image)
{
+ MonoImage *image2;
+
g_return_if_fail (image != NULL);
- if (--image->ref_count)
+ EnterCriticalSection (&images_mutex);
+ if (--image->ref_count) {
+ LeaveCriticalSection (&images_mutex);
return;
+ }
+ image2 = g_hash_table_lookup (loaded_images_hash, image->name);
+ if (image == image2) {
+ /* This is not true if we are called from mono_image_open () */
+ g_hash_table_remove (loaded_images_hash, image->name);
+ if (image->assembly_name)
+ g_hash_table_remove (loaded_images_hash, (char *) image->assembly_name);
+ g_hash_table_remove (loaded_images_guid_hash, image->guid);
+ /* Multiple images might have the same guid */
+ build_guid_table ();
+ }
+ LeaveCriticalSection (&images_mutex);
- g_hash_table_remove (loaded_images_hash, image->name);
-
if (image->f)
fclose (image->f);
+ if (image->raw_data_allocated)
+ g_free (image->raw_data);
g_free (image->name);
+ 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->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->delegate_end_invoke_cache);
+ g_hash_table_destroy (image->delegate_invoke_cache);
+ g_hash_table_destroy (image->remoting_invoke_cache);
+ g_hash_table_destroy (image->runtime_invoke_cache);
+ g_hash_table_destroy (image->typespec_cache);
+ g_hash_table_destroy (image->generic_inst_cache);
if (image->raw_metadata != NULL)
mono_raw_buffer_free (image->raw_metadata);
g_free (ii->cli_sections);
g_free (image->image_info);
}
-
+
g_free (image);
}
* Returns: a string describing the error
*/
const char *
-mono_image_strerror (enum MonoImageOpenStatus status)
+mono_image_strerror (MonoImageOpenStatus status)
{
switch (status){
case MONO_IMAGE_OK:
return "Internal error";
}
+static gpointer
+mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
+ guint32 lang_id, gunichar2 *name,
+ MonoPEResourceDirEntry *entry,
+ MonoPEResourceDir *root, guint32 level)
+{
+ gboolean is_string=entry->name_is_string;
+
+ /* Level 0 holds a directory entry for each type of resource
+ * (identified by ID or name).
+ *
+ * Level 1 holds a directory entry for each named resource
+ * item, and each "anonymous" item of a particular type of
+ * resource.
+ *
+ * Level 2 holds a directory entry for each language pointing to
+ * the actual data.
+ */
+
+ if(level==0) {
+ if((is_string==FALSE && entry->name_offset!=res_id) ||
+ (is_string==TRUE)) {
+ return(NULL);
+ }
+ } else if (level==1) {
+#if 0
+ if(name!=NULL &&
+ is_string==TRUE && name!=lookup (entry->name_offset)) {
+ return(NULL);
+ }
+#endif
+ } else if (level==2) {
+ if((is_string==FALSE && entry->name_offset!=lang_id) ||
+ (is_string==TRUE)) {
+ return(NULL);
+ }
+ } else {
+ g_assert_not_reached ();
+ }
+
+ if(entry->is_dir==TRUE) {
+ MonoPEResourceDir *res_dir=(MonoPEResourceDir *)(((char *)root)+entry->dir_offset);
+ MonoPEResourceDirEntry *sub_entries=(MonoPEResourceDirEntry *)(res_dir+1);
+ guint32 entries, i;
+
+ entries=res_dir->res_named_entries + res_dir->res_id_entries;
+
+ for(i=0; i<entries; i++) {
+ MonoPEResourceDirEntry *sub_entry=&sub_entries[i];
+ gpointer ret;
+
+ ret=mono_image_walk_resource_tree (info, res_id,
+ lang_id, name,
+ sub_entry, root,
+ level+1);
+ if(ret!=NULL) {
+ return(ret);
+ }
+ }
+
+ return(NULL);
+ } else {
+ MonoPEResourceDataEntry *data_entry=(MonoPEResourceDataEntry *)((char *)(root)+entry->dir_offset);
+
+ return(data_entry);
+ }
+}
+
+gpointer
+mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, gunichar2 *name)
+{
+ MonoCLIImageInfo *info;
+ MonoDotNetHeader *header;
+ MonoPEDatadir *datadir;
+ MonoPEDirEntry *rsrc;
+ MonoPEResourceDir *resource_dir;
+ MonoPEResourceDirEntry *res_entries;
+ guint32 entries, i;
+
+ if(image==NULL) {
+ return(NULL);
+ }
+
+ info=image->image_info;
+ if(info==NULL) {
+ return(NULL);
+ }
+
+ header=&info->cli_header;
+ if(header==NULL) {
+ return(NULL);
+ }
+
+ datadir=&header->datadir;
+ if(datadir==NULL) {
+ return(NULL);
+ }
+
+ rsrc=&datadir->pe_resource_table;
+ if(rsrc==NULL) {
+ return(NULL);
+ }
+
+ resource_dir=(MonoPEResourceDir *)mono_cli_rva_map (info, rsrc->rva);
+ if(resource_dir==NULL) {
+ return(NULL);
+ }
+
+ entries=resource_dir->res_named_entries + resource_dir->res_id_entries;
+ res_entries=(MonoPEResourceDirEntry *)(resource_dir+1);
+
+ for(i=0; i<entries; i++) {
+ MonoPEResourceDirEntry *entry=&res_entries[i];
+ gpointer ret;
+
+ ret=mono_image_walk_resource_tree (info, res_id, lang_id,
+ name, entry, resource_dir,
+ 0);
+ if(ret!=NULL) {
+ return(ret);
+ }
+ }
+
+ return(NULL);
+}
+
+guint32
+mono_image_get_entry_point (MonoImage *image)
+{
+ return ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point;
+}
+
+const char*
+mono_image_get_resource (MonoImage *image, guint32 offset, guint32 *size)
+{
+ MonoCLIImageInfo *iinfo = image->image_info;
+ MonoCLIHeader *ch = &iinfo->cli_cli_header;
+ const char* data;
+
+ if (!ch->ch_resources.rva || offset + 4 > ch->ch_resources.size)
+ return NULL;
+
+ data = mono_cli_rva_map (iinfo, ch->ch_resources.rva);
+ if (!data)
+ return NULL;
+ data += offset;
+ if (size)
+ *size = read32 (data);
+ data += 4;
+ 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;
+ t = &res->tables [MONO_TABLE_MODULEREF];
+ //g_print ("loaded file %s from %s (%p)\n", name, image->name, image->assembly);
+ res->assembly = image->assembly;
+ for (i = 0; i < t->rows; ++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)
+{
+ MonoCLIImageInfo *iinfo = image->image_info;
+ MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
+ const char* data;
+
+ if (!de->size || !de->rva)
+ return NULL;
+ data = mono_cli_rva_map (iinfo, de->rva);
+ if (!data)
+ return NULL;
+ if (size)
+ *size = de->size;
+ return data;
+}
+
+guint32
+mono_image_strong_name_position (MonoImage *image, guint32 *size)
+{
+ MonoCLIImageInfo *iinfo = image->image_info;
+ MonoPEDirEntry *de = &iinfo->cli_cli_header.ch_strong_name;
+ const int top = iinfo->cli_section_count;
+ MonoSectionTable *tables = iinfo->cli_section_tables;
+ int i;
+ guint32 addr = de->rva;
+
+ if (size)
+ *size = de->size;
+ if (!de->size || !de->rva)
+ return 0;
+ for (i = 0; i < top; i++){
+ if ((addr >= tables->st_virtual_address) &&
+ (addr < tables->st_virtual_address + tables->st_raw_data_size)){
+ return tables->st_raw_data_ptr +
+ (addr - tables->st_virtual_address);
+ }
+ tables++;
+ }
+
+ return 0;
+}
+
+const char*
+mono_image_get_public_key (MonoImage *image, guint32 *size)
+{
+ const char *pubkey;
+ guint32 len, tok;
+ if (image->tables [MONO_TABLE_ASSEMBLY].rows != 1)
+ return NULL;
+ tok = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_ASSEMBLY], 0, MONO_ASSEMBLY_PUBLIC_KEY);
+ if (!tok)
+ return NULL;
+ pubkey = mono_metadata_blob_heap (image, tok);
+ len = mono_metadata_decode_blob_size (pubkey, &pubkey);
+ if (size)
+ *size = len;
+ return pubkey;
+}
+
projects / mono.git / blobdiff