diff options
| author |   Max Filippov <jcmvbkbc@gmail.com> | 2013-05-24 07:02:25 +0400 |
|---|---|---|
| committer |   Chris Zankel <chris@zankel.net> | 2013-07-08 01:18:57 -0700 |
| commit | 478ba61afccd3a4d7ca662cadff1d35d183fe67d (patch) | |
| tree | 9458a98aa39dba5e195241a48a4c31435a4c92e3 /arch/xtensa/include/asm/ftrace.h | |
| parent | xtensa: Flat DeviceTree copy not future-safe (diff) | |
| download | linux-dev-478ba61afccd3a4d7ca662cadff1d35d183fe67d.tar.xz linux-dev-478ba61afccd3a4d7ca662cadff1d35d183fe67d.zip | |
xtensa: add static function tracer support
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/include/asm/ftrace.h')
| -rw-r--r-- | arch/xtensa/include/asm/ftrace.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/xtensa/include/asm/ftrace.h b/arch/xtensa/include/asm/ftrace.h index 36dc7a684397..73cc3f482304 100644 --- a/arch/xtensa/include/asm/ftrace.h +++ b/arch/xtensa/include/asm/ftrace.h @@ -13,6 +13,7 @@ #include <asm/processor.h> #define HAVE_ARCH_CALLER_ADDR +#ifndef __ASSEMBLY__ #define CALLER_ADDR0 ({ unsigned long a0, a1; \ __asm__ __volatile__ ( \ "mov %0, a0\n" \ @@ -24,10 +25,22 @@ extern unsigned long return_address(unsigned level); #define CALLER_ADDR1 return_address(1) #define CALLER_ADDR2 return_address(2) #define CALLER_ADDR3 return_address(3) -#else +#else /* CONFIG_FRAME_POINTER */ #define CALLER_ADDR1 (0) #define CALLER_ADDR2 (0) #define CALLER_ADDR3 (0) -#endif +#endif /* CONFIG_FRAME_POINTER */ +#endif /* __ASSEMBLY__ */ + +#ifdef CONFIG_FUNCTION_TRACER + +#define MCOUNT_ADDR ((unsigned long)(_mcount)) +#define MCOUNT_INSN_SIZE 3 + +#ifndef __ASSEMBLY__ +extern void _mcount(void); +#define mcount _mcount +#endif /* __ASSEMBLY__ */ +#endif /* CONFIG_FUNCTION_TRACER */ #endif /* _XTENSA_FTRACE_H */ |