projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_FTRACE_H |
| 2 | #define _ASM_X86_FTRACE_H | |
| 395a59d0 | 3 | |
| 606576ce | 4 | #ifdef CONFIG_FUNCTION_TRACER |
| 395a59d0 AS |
5 | #define MCOUNT_ADDR ((long)(mcount)) |
| 6 | #define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */ | |
| 7 | ||
| 8 | #ifndef __ASSEMBLY__ | |
| 9 | extern void mcount(void); | |
| 68bf21aa SR |
10 | |
| 11 | static inline unsigned long ftrace_call_adjust(unsigned long addr) | |
| 12 | { | |
| 13 | /* | |
| 14 | * call mcount is "e8 <4 byte offset>" | |
| 15 | * The addr points to the 4 byte offset and the caller of this | |
| 16 | * function wants the pointer to e8. Simply subtract one. | |
| 17 | */ | |
| 18 | return addr - 1; | |
| 19 | } | |
| 31e88909 SR |
20 | |
| 21 | #ifdef CONFIG_DYNAMIC_FTRACE | |
| 22 | ||
| 23 | struct dyn_arch_ftrace { | |
| 24 | /* No extra data needed for x86 */ | |
| 25 | }; | |
| 26 | ||
| 27 | #endif /* CONFIG_DYNAMIC_FTRACE */ | |
| a26a2a27 | 28 | #endif /* __ASSEMBLY__ */ |
| 606576ce | 29 | #endif /* CONFIG_FUNCTION_TRACER */ |
| 395a59d0 | 30 | |
| caf4b323 FW |
31 | #ifdef CONFIG_FUNCTION_RET_TRACER |
| 32 | #define FTRACE_RET_STACK_SIZE 20 | |
| 33 | ||
| 34 | #ifndef __ASSEMBLY__ | |
| 35 | ||
| 36 | /* | |
| 37 | * Stack of return addresses for functions | |
| 38 | * of a thread. | |
| 39 | * Used in struct thread_info | |
| 40 | */ | |
| 41 | struct ftrace_ret_stack { | |
| 42 | unsigned long ret; | |
| 43 | unsigned long func; | |
| 44 | unsigned long long calltime; | |
| 45 | }; | |
| 46 | ||
| 47 | /* | |
| 48 | * Primary handler of a function return. | |
| 49 | * It relays on ftrace_return_to_handler. | |
| 50 | * Defined in entry32.S | |
| 51 | */ | |
| 52 | extern void return_to_handler(void); | |
| 53 | ||
| 54 | #endif /* __ASSEMBLY__ */ | |
| 55 | #endif /* CONFIG_FUNCTION_RET_TRACER */ | |
| 56 | ||
| 1965aae3 | 57 | #endif /* _ASM_X86_FTRACE_H */ |