1 #ifndef _ASM_ARM_FTRACE 2 #define _ASM_ARM_FTRACE 3 4 #ifdef CONFIG_FUNCTION_TRACER 5 #define MCOUNT_ADDR ((long)(mcount)) 6 #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ 7 8 #ifndef __ASSEMBLY__ 9 extern void mcount(void); 10 extern void __gnu_mcount_nc(void); 11 #endif 12 13 #endif 14 15 #ifndef __ASSEMBLY__ 16 17 #if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) 18 /* 19 * return_address uses walk_stackframe to do it's work. If both 20 * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind 21 * information. For this to work in the function tracer many functions would 22 * have to be marked with __notrace. So for now just depend on 23 * !CONFIG_ARM_UNWIND. 24 */ 25 26 void *return_address(unsigned int); 27 28 #else 29 30 extern inline void *return_address(unsigned int level) 31 { 32 return NULL; 33 } 34 35 #endif 36 37 #define HAVE_ARCH_CALLER_ADDR 38 39 #define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0)) 40 #define CALLER_ADDR1 ((unsigned long)return_address(1)) 41 #define CALLER_ADDR2 ((unsigned long)return_address(2)) 42 #define CALLER_ADDR3 ((unsigned long)return_address(3)) 43 #define CALLER_ADDR4 ((unsigned long)return_address(4)) 44 #define CALLER_ADDR5 ((unsigned long)return_address(5)) 45 #define CALLER_ADDR6 ((unsigned long)return_address(6)) 46 47 #endif /* ifndef __ASSEMBLY__ */ 48 49 #endif /* _ASM_ARM_FTRACE */ 50