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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>
- #ifndef __ASSEMBLY__
- #define ftrace_return_address0 ({ 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 ftrace_return_address(n) return_address(n)
- #endif
- #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 */
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