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authorOlaf Hering <olaf@aepfle.de>2007-10-16 23:30:12 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:43:00 -0700
commit4f9a58d75bfe82ab2b8ba5b8506dfb190a267834 (patch)
tree791843f8cd609cb626a65c4004009084d87170d4 /include/asm-sh
parentf77e34987070a20e4b3e06b868cb39eb73670467 (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-sh')
-rw-r--r--include/asm-sh/elf.h1
-rw-r--r--include/asm-sh/system.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-sh/elf.h b/include/asm-sh/elf.h
index 43ca244564b..12cc4b392bf 100644
--- a/include/asm-sh/elf.h
+++ b/include/asm-sh/elf.h
@@ -133,6 +133,7 @@ extern void __kernel_vsyscall;
#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
#define ARCH_DLINFO \
do { \
if (vdso_enabled) \
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index 9d849e6df26..4faa2fb8861 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -15,6 +15,7 @@
struct task_struct *__switch_to(struct task_struct *prev,
struct task_struct *next);
+#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */
/*
* switch_to() should switch tasks to task nr n, first
*/