Update.

Update.

2003-06-11  Jakub Jelinek  <jakub@redhat.com>

	* elf/Versions (libc): Add _dl_open_hook@GLIBC_PRIVATE.
	* elf/dl-libc.c (struct dl_open_hook): New.
	(_dl_open_hook): New variable.
	(do_dlsym_private): New function.
	(__libc_dlopen_mode) [!SHARED]: Lookup _dl_open_hook@GLIBC_PRIVATE
	and initialize it if found.
	(__libc_dlopen_mode) [SHARED]: If _dl_open_hook is non-NULL,
	call dlopen_mode hook.
	(__libc_dlsym) [SHARED]: If _dl_open_hook is non-NULL,
	call dlsym hook.
	(__libc_dlclose) [SHARED]: If _dl_open_hook is non-NULL,
	call dlclose hook.