From: Behan Webster Date: Wed, 27 Aug 2014 04:29:31 +0000 (+0100) Subject: arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointer X-Git-Tag: accepted/tizen/common/20141203.182822~26 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e58f908e67b1fc6480e24538d0fba78c2d05456a;p=platform%2Fkernel%2Flinux-arm64.git arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointer 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 Signed-off-by: Mark Charlebois Reviewed-by: Jan-Simon Möller Reviewed-by: Olof Johansson Acked-by: Will Deacon Signed-off-by: Will Deacon --- diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 0d75414..f18e6f9 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -80,8 +80,8 @@ static inline struct thread_info *current_thread_info(void) __attribute_const__; static inline struct thread_info *current_thread_info(void) { - register unsigned long sp asm ("sp"); - return (struct thread_info *)(sp & ~(THREAD_SIZE - 1)); + return (struct thread_info *) + (current_stack_pointer & ~(THREAD_SIZE - 1)); } #define thread_saved_pc(tsk) \