From 827b70873b41363c864fb65e99829204595d0f85 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 18 Dec 2005 06:58:22 +0000
Subject: * elf/Versions [GLIBC_PRIVATE]: Export __pointer_chk_guard if
 defined.

	* elf/rtld.c: Define __pointer_chk_guard_local and if necessary
	__pointer_chk_guard.
	(_rtld_global_ro): Initialize _dl_pointer_guard.
	(dl_main): Initialize __pointer_chk_guard_local and either
	__pointer_chk_guard or TLS value if necessary.
	(process_envvars): Recognize and handle LD_POINTER_GUARD.
	* sysdeps/generic/ldsodefs.h (rtld_global_ro): Add _dl_pointer_guard.
	* sysdeps/i386/__longjmp.S: Use PTR_DEMANGLE for PC if defined.
	* sysdeps/x86_64/__longjmp.S: Likewise.
	* sysdeps/i386/bsd-_setjmp.S: Use PTR_MANGLE for PC if defined.
	* sysdeps/i386/bsd-_setjmp.S: Likewise.
	* sysdeps/i386/setjmp.S: Likewise.
	[IS_IN_rtld]: Avoid call to __sigjmp_save.
	* sysdeps/i386/setjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Define PTR_MANGLE and
	PTR_DEMANGLE.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.

	* sysdeps/i386/elf/setjmp.S: Removed.
	* sysdeps/i386/elf/bsd-setjmp.S: Removed.
---
 elf/Versions | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'elf/Versions')

diff --git a/elf/Versions b/elf/Versions
index 9c53f1615e..87e27c5a7a 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -60,5 +60,7 @@ ld {
     _dl_make_stack_executable;
     # Only here for gdb while a better method is developed.
     _dl_debug_state;
+    # Pointer protection.
+    __pointer_chk_guard;
   }
 }
-- 
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