diff options
| author | Behan Webster <behanw@converseincode.com> | 2014-08-27 05:29:32 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-01-22 21:48:36 +0000 |
| commit | 29769603ea7b06e98f229b87bc0a67058cea394d (patch) | |
| tree | 36384a5cca8d9ec15d429406560b2dbfe86d354d | |
| parent | 51c50680dbf8a763bd787e0f7e3fff3df7036997 (diff) | |
arm64: LLVMLinux: Use current_stack_pointer in kernel/traps.c
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: 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 2128df143d840a20e12818290eb6e40b95cc4ac0)
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/traps.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 268ce966afd6..12cd34ff35d0 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -132,7 +132,6 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) { struct stackframe frame; - const register unsigned long current_sp asm ("sp"); pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk); @@ -145,7 +144,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) frame.pc = regs->pc; } else if (tsk == current) { frame.fp = (unsigned long)__builtin_frame_address(0); - frame.sp = current_sp; + frame.sp = current_stack_pointer; frame.pc = (unsigned long)dump_backtrace; } else { /* |