diff options
| author | Mark Charlebois <charlebm@gmail.com> | 2014-07-30 15:55:39 -0700 |
|---|---|---|
| committer | Behan Webster <behanw@converseincode.com> | 2014-07-30 20:28:41 -0700 |
| commit | 489be6592b254f8813516eea5a1247f1e7a89cff (patch) | |
| tree | 83cf41439c27c6a658d0ac40aad95ee8b6869245 | |
| parent | 9e13f189d8961a8f9c8befb4d2d693121fa1876c (diff) | |
arm64: LLVMLinux: Use global stack register variable for aarch64tracking-llvm-ll-20140818.0tracking-llvm-ll-20140814.0tracking-llvm-ll-20140807.0
To support both Clang and GCC, use the global stack register variable vs
a local register variable.
Author: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
| -rw-r--r-- | arch/arm64/include/asm/percpu.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h index 453a179469a3..5279e5733386 100644 --- a/arch/arm64/include/asm/percpu.h +++ b/arch/arm64/include/asm/percpu.h @@ -26,13 +26,13 @@ static inline void set_my_cpu_offset(unsigned long off) static inline unsigned long __my_cpu_offset(void) { unsigned long off; - register unsigned long *sp asm ("sp"); /* * We want to allow caching the value, so avoid using volatile and * instead use a fake stack read to hazard against barrier(). */ - asm("mrs %0, tpidr_el1" : "=r" (off) : "Q" (*sp)); + asm("mrs %0, tpidr_el1" : "=r" (off) : + "Q" (*(const unsigned long *)current_stack_pointer)); return off; } |