From: Behan Webster <beh...@converseincode.com>
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 <beh...@converseincode.com>
Signed-off-by: Mark Charlebois <charl...@gmail.com>
Reviewed-by: Jan-Simon Möller <dl...@gmx.de>
Reviewed-by: Olof Johansson <o...@lixom.net>
Acked-by: Will Deacon <will.dea...@arm.com>
---
arch/arm64/kernel/stacktrace.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 55437ba..407991b 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;
}
--
1.9.1
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