LXR linux/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__
  10extern 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
  23struct dyn_arch_ftrace {
  24        /* No extra data needed on sh */
  25};
  26
  27#endif /* CONFIG_DYNAMIC_FTRACE */
  28
  29static 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 */
  41extern 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 */
  48