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