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CHROMIUM: ARM: r1->r0 for get/set arguments 

ARM reuses r0 as the first argument. This fixes the mistaken
assumption in the original patchset.  These will be merged
into one change when sent upstream.

Signed-off-by: Will Drewry <wad@chromium.org>
TEST=emerge tegra2_kaen; run seccomp testsuite
BUG=chromium-os:27878

Change-Id: Iaaa09995d35f78ee8cef7b600d526e71f3b2fcec
Reviewed-on: https://gerrit.chromium.org/gerrit/21342
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Will Drewry <wad@chromium.org>
Tested-by: Will Drewry <wad@chromium.org>
Signed-off-by: Sasha Levitskiy <sanek@google.com>
This commit is contained in:
Will Drewry 2012-04-27 12:19:46 -05:00 committed by Dan Pasanen
parent 447e37ff28
commit 03c6ba15e0
1 changed files with 2 additions and 2 deletions
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4
arch/arm/include/asm/syscall.h
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@ -55,7 +55,7 @@ static inline void syscall_get_arguments(struct task_struct *task,
unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(args, &regs->ARM_r1 + i, n * sizeof(args[0]));
memcpy(args, &regs->ARM_r0 + i, n * sizeof(args[0]));
}
static inline void syscall_set_arguments(struct task_struct *task,
@ -64,7 +64,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
const unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(&regs->ARM_r1 + i, args, n * sizeof(args[0]));
memcpy(&regs->ARM_r0 + i, args, n * sizeof(args[0]));
}
static inline int syscall_get_arch(struct task_struct *task,