]> git.karo-electronics.de Git - linux-beck.git/commit
x86: PIE executable randomization
authorJiri Kosina <jkosina@suse.cz>
Wed, 30 Jan 2008 12:31:07 +0000 (13:31 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:31:07 +0000 (13:31 +0100)
commitcc503c1b43e002e3f1fed70f46d947e2bf349bb6
treedf0d77b7bccf0148c7b7cdd0363354499b259f99
parent82f74e7159749cc511ebf5954a7b9ea6ad634949
x86: PIE executable randomization

main executable of (specially compiled/linked -pie/-fpie) ET_DYN binaries
onto a random address (in cases in which mmap() is allowed to perform a
randomization).

The code has been extraced from Ingo's exec-shield patch
http://people.redhat.com/mingo/exec-shield/

[akpm@linux-foundation.org: fix used-uninitialsied warning]
[kamezawa.hiroyu@jp.fujitsu.com: fixed ia32 ELF on x86_64 handling]

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/ia64/ia32/binfmt_elf32.c
arch/x86/kernel/sys_x86_64.c
arch/x86/mm/mmap_64.c
fs/binfmt_elf.c
include/asm-x86/pgtable_64.h