1 #ifndef _ASM_ARM_FTRACE
2 #define _ASM_ARM_FTRACE
4 #ifdef CONFIG_FUNCTION_TRACER
5 #define MCOUNT_ADDR ((unsigned long)(__gnu_mcount_nc))
6 #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
9 extern void mcount(void);
10 extern void __gnu_mcount_nc(void);
12 #ifdef CONFIG_DYNAMIC_FTRACE
13 struct dyn_arch_ftrace {
14 #ifdef CONFIG_OLD_MCOUNT
17 #ifdef CONFIG_ARM_MODULE_PLTS
22 static inline unsigned long ftrace_call_adjust(unsigned long addr)
24 /* With Thumb-2, the recorded addresses have the lsb set */
28 extern void ftrace_caller_old(void);
29 extern void ftrace_call_old(void);
38 #if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
40 * return_address uses walk_stackframe to do it's work. If both
41 * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
42 * information. For this to work in the function tracer many functions would
43 * have to be marked with __notrace. So for now just depend on
47 void *return_address(unsigned int);
51 static inline void *return_address(unsigned int level)
58 #define ftrace_return_address(n) return_address(n)
60 #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
62 static inline bool arch_syscall_match_sym_name(const char *sym,
65 if (!strcmp(sym, "sys_mmap2"))
66 sym = "sys_mmap_pgoff";
67 else if (!strcmp(sym, "sys_statfs64_wrapper"))
69 else if (!strcmp(sym, "sys_fstatfs64_wrapper"))
70 sym = "sys_fstatfs64";
71 else if (!strcmp(sym, "sys_arm_fadvise64_64"))
72 sym = "sys_fadvise64_64";
74 /* Ignore case since sym may start with "SyS" instead of "sys" */
75 return !strcasecmp(sym, name);
78 #endif /* ifndef __ASSEMBLY__ */
80 #endif /* _ASM_ARM_FTRACE */