diff options
Diffstat (limited to 'include/asm-arm/current.h')
| -rw-r--r-- | include/asm-arm/current.h | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/include/asm-arm/current.h b/include/asm-arm/current.h index b2b83ebb7..3a06c2a8a 100644 --- a/include/asm-arm/current.h +++ b/include/asm-arm/current.h @@ -1,30 +1,16 @@ #ifndef _ASMARM_CURRENT_H #define _ASMARM_CURRENT_H -static inline unsigned long get_sp(void) -{ - unsigned long sp; - __asm__ ("mov %0,sp" : "=r" (sp)); - return sp; -} - /* Old compilers seem to generate bad code if we allow `current' to be non volatile. */ #if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ > 90) static inline struct task_struct *get_current(void) __attribute__ (( __const__ )); -#define __VOLATILE_CURRENT -#else -#define __VOLATILE_CURRENT volatile #endif static inline struct task_struct *get_current(void) { - struct task_struct *ts; - __asm__ __VOLATILE_CURRENT ( - "bic %0, sp, #0x1f00 @ get_current - bic %0, %0, #0x00ff" - : "=r" (ts)); - return ts; + register unsigned long sp asm ("sp"); + return (struct task_struct *)(sp & ~0x1fff); } #define current (get_current()) |