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/*
* arch/xtensa/include/asm/ftrace.h
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2013 Tensilica Inc.
*/
#ifndef _XTENSA_FTRACE_H
#define _XTENSA_FTRACE_H
#include <asm/processor.h>
#define HAVE_ARCH_CALLER_ADDR
#ifndef __ASSEMBLY__
#define CALLER_ADDR0 ({ unsigned long a0, a1; \
__asm__ __volatile__ ( \
"mov %0, a0\n" \
"mov %1, a1\n" \
: "=r"(a0), "=r"(a1) : : ); \
MAKE_PC_FROM_RA(a0, a1); })
#ifdef CONFIG_FRAME_POINTER
extern unsigned long return_address(unsigned level);
#define CALLER_ADDR1 return_address(1)
#define CALLER_ADDR2 return_address(2)
#define CALLER_ADDR3 return_address(3)
#else /* CONFIG_FRAME_POINTER */
#define CALLER_ADDR1 (0)
#define CALLER_ADDR2 (0)
#define CALLER_ADDR3 (0)
#endif /* CONFIG_FRAME_POINTER */
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((unsigned long)(_mcount))
#define MCOUNT_INSN_SIZE 3
#ifndef __ASSEMBLY__
extern void _mcount(void);
#define mcount _mcount
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_FUNCTION_TRACER */
#endif /* _XTENSA_FTRACE_H */