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Diffstat (limited to 'arch/arm/include/asm/ftrace.h')
-rw-r--r--arch/arm/include/asm/ftrace.h20
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index 103f7ee97313..f89515adac60 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -2,12 +2,30 @@
2#define _ASM_ARM_FTRACE 2#define _ASM_ARM_FTRACE
3 3
4#ifdef CONFIG_FUNCTION_TRACER 4#ifdef CONFIG_FUNCTION_TRACER
5#define MCOUNT_ADDR ((long)(mcount)) 5#define MCOUNT_ADDR ((unsigned long)(__gnu_mcount_nc))
6#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ 6#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
7 7
8#ifndef __ASSEMBLY__ 8#ifndef __ASSEMBLY__
9extern void mcount(void); 9extern void mcount(void);
10extern void __gnu_mcount_nc(void); 10extern void __gnu_mcount_nc(void);
11
12#ifdef CONFIG_DYNAMIC_FTRACE
13struct dyn_arch_ftrace {
14#ifdef CONFIG_OLD_MCOUNT
15 bool old_mcount;
16#endif
17};
18
19static inline unsigned long ftrace_call_adjust(unsigned long addr)
20{
21 /* With Thumb-2, the recorded addresses have the lsb set */
22 return addr & ~1;
23}
24
25extern void ftrace_caller_old(void);
26extern void ftrace_call_old(void);
27#endif
28
11#endif 29#endif
12 30
13#endif 31#endif