diff options
| author | Andy Lutomirski <luto@amacapital.net> | 2014-11-13 15:57:07 -0800 |
|---|---|---|
| committer | Andy Lutomirski <luto@amacapital.net> | 2015-01-02 10:22:46 -0800 |
| commit | 83653c16da91112236292871b820cb8b367220e3 (patch) | |
| tree | 1b4155808ca58628d39283073da627529bd4ad9f /arch/x86/include/asm/thread_info.h | |
| parent | 959274753857efe9c5f1ba35fe727f51e9aa128d (diff) | |
x86: Clean up current_stack_pointer
There's no good reason for it to be a macro, and x86_64 will want to
use it, so it should be in a header.
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Diffstat (limited to 'arch/x86/include/asm/thread_info.h')
| -rw-r--r-- | arch/x86/include/asm/thread_info.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 547e344a6dc6..8b13b0fbda8e 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -170,6 +170,17 @@ static inline struct thread_info *current_thread_info(void) return ti; } +static inline unsigned long current_stack_pointer(void) +{ + unsigned long sp; +#ifdef CONFIG_X86_64 + asm("mov %%rsp,%0" : "=g" (sp)); +#else + asm("mov %%esp,%0" : "=g" (sp)); +#endif + return sp; +} + #else /* !__ASSEMBLY__ */ /* how to get the thread information struct from ASM */ |