Messages in this thread Patch in this message | | | From | behanw@converse ... | Subject | [PATCH 3/4] arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointer | Date | Wed, 30 Jul 2014 16:57:28 -0700 |
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From: Behan Webster <behanw@converseincode.com>
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: Jan-Simon M??ller <dl9pf@gmx.de> --- arch/arm64/include/asm/thread_info.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index e6b6094..c2432d2 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) \ -- 1.9.1
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