[PATCH 3/4] arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointer

On 07/30/14 22:31, Andreas F?rber wrote:

Hi,

Am 31.07.2014 01:57, schrieb behanw at converseincode.com:

quoted

From: Behan Webster <redacted>

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 <redacted>
Signed-off-by: Mark Charlebois <redacted>
Reviewed-by: Jan-Simon M??ller <redacted>

Something went wrong with ? encoding here and in 2/4.

Yeah. That keeps happening. :(

Thanks.

quoted

---
  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 *) \

This is not a macro, so \ seems superfluous.

Doh. Indeed. Will fix.

Behan

-- 
Behan Webster
behanw at converseincode.com