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authorBehan Webster2014-08-27 05:29:30 +0100
committerWill Deacon2014-09-08 14:39:19 +0100
commitbb28cec4ea2f5151c08e061c6de825a8c853bbd6 (patch)
tree00f61fa4bd8e39db4394c3fc4f88672769e7f566 /arch/arm64/kernel
parent3337a10e0d0cbc9225cefc23aa7a604b698367ed (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>
Diffstat (limited to 'arch/arm64/kernel')
-rw-r--r--arch/arm64/kernel/stacktrace.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 55437ba1f5a4..407991bf79f5 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;
}