diff options
| author | Behan Webster <behanw@converseincode.com> | 2014-02-12 12:16:37 -0800 |
|---|---|---|
| committer | Behan Webster <behanw@converseincode.com> | 2014-03-31 00:07:22 -0700 |
| commit | d21179c737aa69c33f69167f71d5eb831b6f52c1 (patch) | |
| tree | c323fdc7b1608af7fc3e17d3b3e97260dddd0a80 /arch/arm64 | |
| parent | b1e8d3e51984bed68e0fceeea75f60bb71d8cf39 (diff) | |
arm64: LLVMLinux: named_register-stacktrace-aarch64
The existing code uses named registers to get the value of the stack pointer.
The new current_stack_pointer macro is more readable and allows for a central
portable implementation of how to get the stack pointer with ASM. This change
supports being able to compile the kernel with both gcc and Clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Diffstat (limited to 'arch/arm64')
| -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 38f0558f0c0..6f44bf97e4c 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; } |