diff options
authorBehan Webster <behanw@converseincode.com>2014-08-27 05:29:32 +0100
committerMark Brown <broonie@kernel.org>2015-01-22 21:48:36 +0000
commit29769603ea7b06e98f229b87bc0a67058cea394d (patch)
parent51c50680dbf8a763bd787e0f7e3fff3df7036997 (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>
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 {