41 lines
979 B
C
41 lines
979 B
C
/*
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* arch/xtensa/include/asm/ftrace.h
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2013 Tensilica Inc.
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*/
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#ifndef _XTENSA_FTRACE_H
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#define _XTENSA_FTRACE_H
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#include <asm/processor.h>
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#ifndef __ASSEMBLY__
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#define ftrace_return_address0 ({ unsigned long a0, a1; \
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__asm__ __volatile__ ( \
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"mov %0, a0\n" \
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"mov %1, a1\n" \
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: "=r"(a0), "=r"(a1)); \
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MAKE_PC_FROM_RA(a0, a1); })
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#ifdef CONFIG_FRAME_POINTER
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extern unsigned long return_address(unsigned level);
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#define ftrace_return_address(n) return_address(n)
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#endif
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#endif /* __ASSEMBLY__ */
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#ifdef CONFIG_FUNCTION_TRACER
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#define MCOUNT_ADDR ((unsigned long)(_mcount))
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#define MCOUNT_INSN_SIZE 3
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#ifndef __ASSEMBLY__
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extern void _mcount(void);
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#define mcount _mcount
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_FUNCTION_TRACER */
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#endif /* _XTENSA_FTRACE_H */
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