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server: Store the mapped file descriptor in the memory view. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-09-26 14:50:43 +02:00
parent 26314a56d3
commit b1b4f5d451
3 changed files with 13 additions and 9 deletions
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7
server/debugger.c
View File

@ -169,8 +169,8 @@ static int fill_create_process_event( struct debug_event *event, const void *arg
event->data.create_process.name = exe_module->name;
event->data.create_process.unicode = 1;
if (exe_module->mapping) /* the doc says write access too, but this doesn't seem a good idea */
event->data.create_process.file = open_mapping_file( debugger, exe_module->mapping, GENERIC_READ,
/* the doc says write access too, but this doesn't seem a good idea */
event->data.create_process.file = open_mapping_file( debugger, exe_module->base, GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE );
return 1;
}
@ -200,8 +200,7 @@ static int fill_load_dll_event( struct debug_event *event, const void *arg )
event->data.load_dll.dbg_size = dll->dbg_size;
event->data.load_dll.name = dll->name;
event->data.load_dll.unicode = 1;
if (dll->mapping)
event->data.load_dll.handle = open_mapping_file( debugger, dll->mapping, GENERIC_READ,
event->data.load_dll.handle = open_mapping_file( debugger, dll->base, GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE );
return 1;
}

2
server/file.h
View File

@ -147,7 +147,7 @@ extern mode_t sd_to_mode( const struct security_descriptor *sd, const SID *owner
extern struct mapping *get_mapping_obj( struct process *process, obj_handle_t handle,
unsigned int access );
extern obj_handle_t open_mapping_file( struct process *process, struct mapping *mapping,
extern obj_handle_t open_mapping_file( struct process *process, client_ptr_t base,
unsigned int access, unsigned int sharing );
extern struct mapping *grab_mapping_unless_removable( struct mapping *mapping );
extern void free_mapped_views( struct process *process );

11
server/mapping.c
View File

@ -85,6 +85,7 @@ static const struct object_ops ranges_ops =
struct memory_view
{
struct list entry; /* entry in per-process view list */
struct fd *fd; /* fd for mapped file */
struct ranges *committed; /* list of committed ranges in this mapping */
unsigned int flags; /* SEC_* flags */
client_ptr_t base; /* view base address (in process addr space) */
@ -259,6 +260,7 @@ static struct memory_view *find_mapped_view( struct process *process, client_ptr
static void free_memory_view( struct memory_view *view )
{
if (view->fd) release_object( view->fd );
if (view->committed) release_object( view->committed );
list_remove( &view->entry );
free( view );
@ -731,13 +733,15 @@ struct mapping *get_mapping_obj( struct process *process, obj_handle_t handle, u
}
/* open a new file handle to the file backing the mapping */
obj_handle_t open_mapping_file( struct process *process, struct mapping *mapping,
obj_handle_t open_mapping_file( struct process *process, client_ptr_t base,
unsigned int access, unsigned int sharing )
{
obj_handle_t handle;
struct file *file = create_file_for_fd_obj( mapping->fd, access, sharing );
struct memory_view *view = find_mapped_view( process, base );
struct file *file;
if (!file) return 0;
if (!view || !view->fd) return 0;
if (!(file = create_file_for_fd_obj( view->fd, access, sharing ))) return 0;
handle = alloc_handle( process, file, access, 0 );
release_object( file );
return handle;
@ -925,6 +929,7 @@ DECL_HANDLER(map_view)
view->size = req->size;
view->start = req->start;
view->flags = mapping->flags;
view->fd = !is_fd_removable( mapping->fd ) ? (struct fd *)grab_object( mapping->fd ) : NULL;
view->committed = mapping->committed ? (struct ranges *)grab_object( mapping->committed ) : NULL;
list_add_tail( &current->process->views, &view->entry );
}