diff options
Diffstat (limited to 'elf/rtld.c')
| -rw-r--r-- | elf/rtld.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index 46bece7fa3..aa4c030f73 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -1,5 +1,5 @@ /* Run time dynamic linker. - Copyright (C) 1995-2006, 2007, 2008 Free Software Foundation, Inc. + Copyright (C) 1995-2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -841,7 +841,7 @@ static void security_init (void) { /* Set up the stack checker's canary. */ - uintptr_t stack_chk_guard = _dl_setup_stack_chk_guard (); + uintptr_t stack_chk_guard = _dl_setup_stack_chk_guard (_dl_random); #ifdef THREAD_SET_STACK_GUARD THREAD_SET_STACK_GUARD (stack_chk_guard); #else @@ -851,18 +851,18 @@ security_init (void) /* Set up the pointer guard as well, if necessary. */ if (GLRO(dl_pointer_guard)) { - // XXX If it is cheap, we should use a separate value. - uintptr_t pointer_chk_guard = stack_chk_guard; -#ifndef HP_TIMING_NONAVAIL - hp_timing_t now; - HP_TIMING_NOW (now); - pointer_chk_guard ^= now; -#endif + uintptr_t pointer_chk_guard = _dl_setup_pointer_guard (_dl_random, + stack_chk_guard); #ifdef THREAD_SET_POINTER_GUARD THREAD_SET_POINTER_GUARD (pointer_chk_guard); #endif __pointer_chk_guard_local = pointer_chk_guard; } + + /* We do not need the _dl_random value anymore. The less + information we leave behind, the better, so clear the + variable. */ + _dl_random = NULL; } |