diff options
| author | Behan Webster <behanw@converseincode.com> | 2014-08-27 05:29:30 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-01-22 21:44:49 +0000 |
| commit | 9b2ff971ff9b5d88712078c6ebafb1d85e1469d7 (patch) | |
| tree | ac7c16c757e00a929f79436485c5c1125ad7559f | |
| parent | 98f12c0a80ae19316c1b32f610d094aaae2c5fc0 (diff) | |
arm64: LLVMLinux: Use current_stack_pointer in save_stack_trace_tsk
Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Reviewed-by: Olof Johansson <olof@lixom.net>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit bb28cec4ea2f5151c08e061c6de825a8c853bbd6)
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/stacktrace.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index 38f0558f0c0a..6f44bf97e4cf 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -111,10 +111,9 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) frame.sp = thread_saved_sp(tsk); frame.pc = thread_saved_pc(tsk); } else { - register unsigned long current_sp asm("sp"); data.no_sched_functions = 0; frame.fp = (unsigned long)__builtin_frame_address(0); - frame.sp = current_sp; + frame.sp = current_stack_pointer; frame.pc = (unsigned long)save_stack_trace_tsk; } |