Load library using file handle.
* This patch enables dlopen by file descriptor
instead of path/name.
Bug: 15984217
Change-Id: Ib39051e00567fb97070bf96d8ce63993877c0a01
diff --git a/libc/include/android/dlext.h b/libc/include/android/dlext.h
index 90962fa..616e08e 100644
--- a/libc/include/android/dlext.h
+++ b/libc/include/android/dlext.h
@@ -49,11 +49,17 @@
*/
ANDROID_DLEXT_USE_RELRO = 0x8,
+ /* Instruct dlopen to use library_fd instead of opening file by name.
+ * The filename parameter is still used to identify the library.
+ */
+ ANDROID_DLEXT_USE_LIBRARY_FD = 0x10,
+
/* Mask of valid bits */
ANDROID_DLEXT_VALID_FLAG_BITS = ANDROID_DLEXT_RESERVED_ADDRESS |
ANDROID_DLEXT_RESERVED_ADDRESS_HINT |
ANDROID_DLEXT_WRITE_RELRO |
- ANDROID_DLEXT_USE_RELRO,
+ ANDROID_DLEXT_USE_RELRO |
+ ANDROID_DLEXT_USE_LIBRARY_FD,
};
typedef struct {
@@ -61,6 +67,7 @@
void* reserved_addr;
size_t reserved_size;
int relro_fd;
+ int library_fd;
} android_dlextinfo;
extern void* android_dlopen_ext(const char* filename, int flag, const android_dlextinfo* extinfo);