* elf/elf.h: Define AT_EXECFN.

	* elf/rtld.c [!__ASSUME_AT_EXECFN] (process_envvars): Don't handle
	LD_ORIGIN_PATH.
	* elf/dl-sysdep.c (_dl_sysdep_start): Handle AT_EXECFN.
	* elf/dl-support.c: Define _dl_execfn.  Don't define _dl_origin_path
	if __ASSUME_AT_EXECFN is defined.
	(_dl_aux_init): Handle AT_EXECFN.
	* sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_AT_EXECFN
	for 2.6.27 and up.
	* sysdeps/generic/ldsodefs.h (rtld_global_ro): Add _dl_execfn.
	Don't define _dl_origin_path if __ASSUME_AT_EXECFN is defined.
	* sysdeps/unix/sysv/linux/dl-origin.c (_dl_get_origin): Use
	_dl_execfn if available and avoid compatibility code if
	__ASSUME_AT_EXECFN is defined.

1 files changed, 2 insertions, 0 deletions

diff --git a/elf/elf.h b/elf/elf.h
index 269de527e6..a4134462ac 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -970,6 +970,8 @@ typedef struct
 
 #define	AT_SECURE	23		/* Boolean, was exec setuid-like?  */
 
+#define AT_EXECFN	31		/* Filename of executable.  */
+
 /* Pointer to the global system page used for system calls and other
    nice things.  */
 #define AT_SYSINFO	32