Messages in this thread Patch in this message | | | From | behanw@converse ... | Subject | [PATCH 2/6] arm: LLVMLinux: Use current_stack_pointer to calculate pt_regs address | Date | Tue, 8 Jul 2014 13:16:12 -0700 |
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From: Behan Webster <behanw@converseincode.com>
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> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon M??ller <dl9pf@gmx.de> --- arch/arm/include/asm/ptrace.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index c877654..45bc592 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -148,9 +148,8 @@ 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__ */ -- 1.9.1
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