root/arch/sh/include/asm/ftrace.h

INCLUDED FROM

DEFINITIONS

1. ftrace_call_adjust

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SH_FTRACE_H
   3 #define __ASM_SH_FTRACE_H
   4 
   5 #ifdef CONFIG_FUNCTION_TRACER
   6 
   7 #define MCOUNT_INSN_SIZE        4 /* sizeof mcount call */
   8 #define FTRACE_SYSCALL_MAX      NR_syscalls
   9 
  10 #ifndef __ASSEMBLY__
  11 extern void mcount(void);
  12 
  13 #define MCOUNT_ADDR             ((unsigned long)(mcount))
  14 
  15 #ifdef CONFIG_DYNAMIC_FTRACE
  16 #define CALL_ADDR               ((long)(ftrace_call))
  17 #define STUB_ADDR               ((long)(ftrace_stub))
  18 #define GRAPH_ADDR              ((long)(ftrace_graph_call))
  19 #define CALLER_ADDR             ((long)(ftrace_caller))
  20 
  21 #define MCOUNT_INSN_OFFSET      ((STUB_ADDR - CALL_ADDR) - 4)
  22 #define GRAPH_INSN_OFFSET       ((CALLER_ADDR - GRAPH_ADDR) - 4)
  23 
  24 struct dyn_arch_ftrace {
  25         /* No extra data needed on sh */
  26 };
  27 
  28 #endif /* CONFIG_DYNAMIC_FTRACE */
  29 
  30 static inline unsigned long ftrace_call_adjust(unsigned long addr)
  31 {
  32         /* 'addr' is the memory table address. */
  33         return addr;
  34 }
  35 
  36 #endif /* __ASSEMBLY__ */
  37 #endif /* CONFIG_FUNCTION_TRACER */
  38 
  39 #ifndef __ASSEMBLY__
  40 
  41 /* arch/sh/kernel/return_address.c */
  42 extern void *return_address(unsigned int);
  43 
  44 #define ftrace_return_address(n) return_address(n)
  45 
  46 #endif /* __ASSEMBLY__ */
  47 
  48 #endif /* __ASM_SH_FTRACE_H */