arch/sh/include/asm/ftrace.h

   1 #ifndef __ASM_SH_FTRACE_H
   2 #define __ASM_SH_FTRACE_H
   3
   4 #ifdef CONFIG_FUNCTION_TRACER
   5
   6 #define MCOUNT_INSN_SIZE        4 /* sizeof mcount call */
   7 #define FTRACE_SYSCALL_MAX      NR_syscalls
   8
   9 #ifndef __ASSEMBLY__
  10 extern void mcount(void);
  11
  12 #define MCOUNT_ADDR             ((unsigned long)(mcount))
  13
  14 #ifdef CONFIG_DYNAMIC_FTRACE
  15 #define CALL_ADDR               ((long)(ftrace_call))
  16 #define STUB_ADDR               ((long)(ftrace_stub))
  17 #define GRAPH_ADDR              ((long)(ftrace_graph_call))
  18 #define CALLER_ADDR             ((long)(ftrace_caller))
  19
  20 #define MCOUNT_INSN_OFFSET      ((STUB_ADDR - CALL_ADDR) - 4)
  21 #define GRAPH_INSN_OFFSET       ((CALLER_ADDR - GRAPH_ADDR) - 4)
  22
  23 struct dyn_arch_ftrace {
  24         /* No extra data needed on sh */
  25 };
  26
  27 #endif /* CONFIG_DYNAMIC_FTRACE */
  28
  29 static inline unsigned long ftrace_call_adjust(unsigned long addr)
  30 {
  31         /* 'addr' is the memory table address. */
  32         return addr;
  33 }
  34
  35 #endif /* __ASSEMBLY__ */
  36 #endif /* CONFIG_FUNCTION_TRACER */
  37
  38 #ifndef __ASSEMBLY__
  39
  40 /* arch/sh/kernel/return_address.c */
  41 extern void *return_address(unsigned int);
  42
  43 #define ftrace_return_address(n) return_address(n)
  44
  45 #endif /* __ASSEMBLY__ */
  46
  47 #endif /* __ASM_SH_FTRACE_H */