diff options
| author | Olaf Hering <olaf@aepfle.de> | 2007-10-17 08:30:12 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 17:43:00 +0200 |
| commit | 4f9a58d75bfe82ab2b8ba5b8506dfb190a267834 (patch) | |
| tree | 791843f8cd609cb626a65c4004009084d87170d4 /include/asm-powerpc | |
| parent | vfs: use the predefined d_unhashed inline function instead (diff) | |
| download | linux-4f9a58d75bfe82ab2b8ba5b8506dfb190a267834.tar.xz linux-4f9a58d75bfe82ab2b8ba5b8506dfb190a267834.zip | |
increase AT_VECTOR_SIZE to terminate saved_auxv properly
include/asm-powerpc/elf.h has 6 entries in ARCH_DLINFO. fs/binfmt_elf.c
has 14 unconditional NEW_AUX_ENT entries and 2 conditional NEW_AUX_ENT
entries. So in the worst case, saved_auxv does not get an AT_NULL entry at
the end.
The saved_auxv array must be terminated with an AT_NULL entry. Make the
size of mm_struct->saved_auxv arch dependend, based on the number of
ARCH_DLINFO entries.
Signed-off-by: Olaf Hering <olh@suse.de>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/elf.h | 1 | ||||
| -rw-r--r-- | include/asm-powerpc/system.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h index 8925c2813667..6bd07ef78ac4 100644 --- a/include/asm-powerpc/elf.h +++ b/include/asm-powerpc/elf.h @@ -291,6 +291,7 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, * AT_IGNOREPPC is used for that. * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC, * even if DLINFO_ARCH_ITEMS goes to zero or is undefined. + * update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ #define ARCH_DLINFO \ do { \ diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h index d10e99bf5001..87be8c3bc9cb 100644 --- a/include/asm-powerpc/system.h +++ b/include/asm-powerpc/system.h @@ -40,6 +40,7 @@ #define set_mb(var, value) do { var = value; mb(); } while (0) #ifdef __KERNEL__ +#define AT_VECTOR_SIZE_ARCH 6 /* entries in ARCH_DLINFO */ #ifdef CONFIG_SMP #define smp_mb() mb() #define smp_rmb() rmb() |