diff options
| author | Olaf Hering <olaf@aepfle.de> | 2007-10-16 23:30:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:43:00 -0700 |
| commit | 4f9a58d75bfe82ab2b8ba5b8506dfb190a267834 (patch) | |
| tree | 791843f8cd609cb626a65c4004009084d87170d4 /include/asm-x86 | |
| parent | f77e34987070a20e4b3e06b868cb39eb73670467 (diff) | |
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-x86')
| -rw-r--r-- | include/asm-x86/elf_32.h | 1 | ||||
| -rw-r--r-- | include/asm-x86/system_32.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86/elf_32.h b/include/asm-x86/elf_32.h index af45f315435..b3f694eaaf3 100644 --- a/include/asm-x86/elf_32.h +++ b/include/asm-x86/elf_32.h @@ -153,6 +153,7 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, extern unsigned int vdso_enabled; +/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ #define ARCH_DLINFO \ do if (vdso_enabled) { \ NEW_AUX_ENT(AT_SYSINFO, VDSO_ENTRY); \ diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h index e7e5d426fef..d84e593b7df 100644 --- a/include/asm-x86/system_32.h +++ b/include/asm-x86/system_32.h @@ -7,6 +7,7 @@ #include <asm/cmpxchg.h> #ifdef __KERNEL__ +#define AT_VECTOR_SIZE_ARCH 2 /* entries in ARCH_DLINFO */ struct task_struct; /* one of the stranger aspects of C forward declarations.. */ extern struct task_struct * FASTCALL(__switch_to(struct task_struct *prev, struct task_struct *next)); |