1/* 2 * arch/xtensa/include/asm/ftrace.h 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 2013 Tensilica Inc. 9 */ 10#ifndef _XTENSA_FTRACE_H 11#define _XTENSA_FTRACE_H 12 13#include <asm/processor.h> 14 15#ifndef __ASSEMBLY__ 16extern unsigned long return_address(unsigned level); 17#define ftrace_return_address(n) return_address(n) 18#endif /* __ASSEMBLY__ */ 19 20#ifdef CONFIG_FUNCTION_TRACER 21 22#define MCOUNT_ADDR ((unsigned long)(_mcount)) 23#define MCOUNT_INSN_SIZE 3 24 25#ifndef __ASSEMBLY__ 26extern void _mcount(void); 27#define mcount _mcount 28#endif /* __ASSEMBLY__ */ 29#endif /* CONFIG_FUNCTION_TRACER */ 30 31#endif /* _XTENSA_FTRACE_H */ 32