LXR linux/arch/nds32/include/asm/ftrace.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2
   3#ifndef __ASM_NDS32_FTRACE_H
   4#define __ASM_NDS32_FTRACE_H
   5
   6#ifdef CONFIG_FUNCTION_TRACER
   7
   8#define HAVE_FUNCTION_GRAPH_FP_TEST
   9
  10#define MCOUNT_ADDR ((unsigned long)(_mcount))
  11/* mcount call is composed of three instructions:
  12 * sethi + ori + jral
  13 */
  14#define MCOUNT_INSN_SIZE 12
  15
  16extern void _mcount(unsigned long parent_ip);
  17
  18#ifdef CONFIG_DYNAMIC_FTRACE
  19
  20#define FTRACE_ADDR ((unsigned long)_ftrace_caller)
  21
  22#ifdef __NDS32_EL__
  23#define INSN_NOP                0x09000040
  24#define INSN_SIZE(insn)         (((insn & 0x00000080) == 0) ? 4 : 2)
  25#define IS_SETHI(insn)          ((insn & 0x000000fe) == 0x00000046)
  26#define ENDIAN_CONVERT(insn)    be32_to_cpu(insn)
  27#else /* __NDS32_EB__ */
  28#define INSN_NOP                0x40000009
  29#define INSN_SIZE(insn)         (((insn & 0x80000000) == 0) ? 4 : 2)
  30#define IS_SETHI(insn)          ((insn & 0xfe000000) == 0x46000000)
  31#define ENDIAN_CONVERT(insn)    (insn)
  32#endif
  33
  34extern void _ftrace_caller(unsigned long parent_ip);
  35static inline unsigned long ftrace_call_adjust(unsigned long addr)
  36{
  37        return addr;
  38}
  39struct dyn_arch_ftrace {
  40};
  41
  42#endif /* CONFIG_DYNAMIC_FTRACE */
  43
  44#endif /* CONFIG_FUNCTION_TRACER */
  45
  46#endif /* __ASM_NDS32_FTRACE_H */
  47