diff options
| author | Behan Webster <behanw@converseincode.com> | 2014-09-27 01:31:09 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-11-14 00:58:04 +0100 |
| commit | f6c9cbf091a4b0769180d663e37621569b054d11 (patch) | |
| tree | f79c170e5e26c20236c310aa18cef9b367b5ab31 /arch/arm/include/asm | |
| parent | ARM: 8172/1: Use current_stack_pointer in save_stack_trace_tsk (diff) | |
| download | linux-f6c9cbf091a4b0769180d663e37621569b054d11.tar.xz linux-f6c9cbf091a4b0769180d663e37621569b054d11.zip | |
ARM: 8173/1: 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 <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/thread_info.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index bb435152189f..b9dc3dce59a6 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -112,8 +112,8 @@ 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) \ |