projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 395a59d0 AS |
1 | #ifndef _ASM_ARM_FTRACE |
| 2 | #define _ASM_ARM_FTRACE | |
| 3 | ||
| 606576ce | 4 | #ifdef CONFIG_FUNCTION_TRACER |
| 3b6c223b | 5 | #define MCOUNT_ADDR ((unsigned long)(__gnu_mcount_nc)) |
| 395a59d0 AS |
6 | #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ |
| 7 | ||
| 8 | #ifndef __ASSEMBLY__ | |
| 9 | extern void mcount(void); | |
| 181f817e | 10 | extern void __gnu_mcount_nc(void); |
| 3b6c223b RV |
11 | |
| 12 | #ifdef CONFIG_DYNAMIC_FTRACE | |
| 13 | struct dyn_arch_ftrace { | |
| 14 | #ifdef CONFIG_OLD_MCOUNT | |
| 15 | bool old_mcount; | |
| 16 | #endif | |
| 17 | }; | |
| 18 | ||
| 19 | static inline unsigned long ftrace_call_adjust(unsigned long addr) | |
| 20 | { | |
| 72dc43a9 RV |
21 | /* With Thumb-2, the recorded addresses have the lsb set */ |
| 22 | return addr & ~1; | |
| 3b6c223b RV |
23 | } |
| 24 | ||
| 25 | extern void ftrace_caller_old(void); | |
| 26 | extern void ftrace_call_old(void); | |
| 27 | #endif | |
| 28 | ||
| 395a59d0 AS |
29 | #endif |
| 30 | ||
| 31 | #endif | |
| 32 | ||
| 4bf1fa5a UKK |
33 | #ifndef __ASSEMBLY__ |
| 34 | ||
| 35 | #if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) | |
| 36 | /* | |
| 37 | * return_address uses walk_stackframe to do it's work. If both | |
| 38 | * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind | |
| 39 | * information. For this to work in the function tracer many functions would | |
| 40 | * have to be marked with __notrace. So for now just depend on | |
| 41 | * !CONFIG_ARM_UNWIND. | |
| 42 | */ | |
| 43 | ||
| 44 | void *return_address(unsigned int); | |
| 45 | ||
| 46 | #else | |
| 47 | ||
| aeea3592 | 48 | static inline void *return_address(unsigned int level) |
| 4bf1fa5a UKK |
49 | { |
| 50 | return NULL; | |
| 51 | } | |
| 52 | ||
| 53 | #endif | |
| 54 | ||
| 1712ef43 | 55 | #define ftrace_return_address(n) return_address(n) |
| 4bf1fa5a UKK |
56 | |
| 57 | #endif /* ifndef __ASSEMBLY__ */ | |
| 58 | ||
| 395a59d0 | 59 | #endif /* _ASM_ARM_FTRACE */ |