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| author | Ulrich Drepper <drepper@redhat.com> | 2009-01-11 04:44:06 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-01-11 04:44:06 +0000 |
| commit | 965cb60a21674edb8e20b1a2a41297bcd4622361 (patch) | |
| tree | 09300bc9d55e29ad73d7dde4ad75bb96cc51c103 /elf/dl-support.c | |
| parent | 5b656a0d301740e1be7062f950d0a4f00c471434 (diff) | |
| download | glibc-965cb60a21674edb8e20b1a2a41297bcd4622361.tar.gz glibc-965cb60a21674edb8e20b1a2a41297bcd4622361.tar.xz glibc-965cb60a21674edb8e20b1a2a41297bcd4622361.zip | |
* sysdeps/generic/dl-osinfo.h (_dl_setup_stack_chk_guard): Take
one parameter. If non-NULL use it to initialize return value. (_dl_setup_pointer_guard): New function. * sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise. * sysdeps/generic/ldsodefs.h: Declare _dl_random. * elf/rtld.c (security_init): Pass _dl_random to _dl_setup_stack_chk_guard. Call _dl_setup_pointer_guard to initialize pointer_chk_guard. * elf/dl-sysdep.c (_dl_random): New variable. (_dl_sysdep_start): Handle AT_RANDOM. (_dl_show_auxv): Likewise. * elf/dl-support.c (_dl_random): New variable. (_dl_aux_init): Handle AT_RANDOM. * csu/libc-start.c [!SHARED] (libc_start_main): Pass _dl_random to _dl_setup_stack_chk_guard. * elf/elf.h (AT_RANDOM): Define AT_BASE_PLATFORM and AT_RANDOM.
Diffstat (limited to 'elf/dl-support.c')
| -rw-r--r-- | elf/dl-support.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/elf/dl-support.c b/elf/dl-support.c index 6bd573ec57..59a8dd9b97 100644 --- a/elf/dl-support.c +++ b/elf/dl-support.c @@ -1,5 +1,5 @@ /* Support for dynamic linking code in static libc. - Copyright (C) 1996-2005, 2006, 2007, 2008 Free Software Foundation, Inc. + Copyright (C) 1996-2008, 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 @@ -84,6 +84,9 @@ struct r_scope_elem _dl_initial_searchlist; int _dl_starting_up = 1; #endif +/* Random data provided by the kernel. */ +void *_dl_random; + /* Get architecture specific initializer. */ #include <dl-procinfo.c> @@ -216,6 +219,9 @@ _dl_aux_init (ElfW(auxv_t) *av) __libc_enable_secure = av->a_un.a_val; __libc_enable_secure_decided = 1; break; + case AT_RANDOM: + _dl_random = (void *) av->a_un.a_val; + break; # ifdef DL_PLATFORM_AUXV DL_PLATFORM_AUXV # endif |