diff options
| author | Behan Webster <behanw@converseincode.com> | 2014-09-27 00:31:06 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-11-13 23:58:07 +0000 |
| commit | 0ebc1f5671dff84b7ba4dcc38ebce956e6dea5fa (patch) | |
| tree | 070333a3a69a16873972af654cacc5e3a5b3e9db /arch/arm/include/asm/ptrace.h | |
| parent | ccbd2da50db2111f6d055e3201c39a37e542ceb6 (diff) | |
ARM: 8175/1: Use current_stack_pointer to calculate pt_regs address
Use the global current_stack_pointer to calculate the end of the stack for
current_pt_regs()
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/ptrace.h')
| -rw-r--r-- | arch/arm/include/asm/ptrace.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 601264d983fa..51622ba7c4a6 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -154,9 +154,8 @@ static inline unsigned long user_stack_pointer(struct pt_regs *regs) return regs->ARM_sp; } -#define current_pt_regs(void) ({ \ - register unsigned long sp asm ("sp"); \ - (struct pt_regs *)((sp | (THREAD_SIZE - 1)) - 7) - 1; \ +#define current_pt_regs(void) ({ (struct pt_regs *) \ + ((current_stack_pointer | (THREAD_SIZE - 1)) - 7) - 1; \ }) #endif /* __ASSEMBLY__ */ |