arch/ia64/include/asm/ftrace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_IA64_FTRACE_H
   3 #define _ASM_IA64_FTRACE_H
   4
   5 #ifdef CONFIG_FUNCTION_TRACER
   6 #define MCOUNT_INSN_SIZE        32 /* sizeof mcount call */
   7
   8 #ifndef __ASSEMBLY__
   9 extern void _mcount(unsigned long pfs, unsigned long r1, unsigned long b0, unsigned long r0);
  10 #define mcount _mcount
  11
  12 /* In IA64, MCOUNT_ADDR is set in link time, so it's not a constant at compile time */
  13 #define MCOUNT_ADDR (((struct fnptr *)mcount)->ip)
  14 #define FTRACE_ADDR (((struct fnptr *)ftrace_caller)->ip)
  15
  16 static inline unsigned long ftrace_call_adjust(unsigned long addr)
  17 {
  18         /* second bundle, insn 2 */
  19         return addr - 0x12;
  20 }
  21
  22 struct dyn_arch_ftrace {
  23 };
  24 #endif
  25
  26 #endif /* CONFIG_FUNCTION_TRACER */
  27
  28 #endif /* _ASM_IA64_FTRACE_H */