mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 16:38:31 +00:00
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#ifndef _ASM_ARM_FTRACE
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#define _ASM_ARM_FTRACE
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#ifdef CONFIG_FUNCTION_TRACER
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#define MCOUNT_ADDR ((long)(mcount))
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#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
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#ifndef __ASSEMBLY__
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extern void mcount(void);
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extern void __gnu_mcount_nc(void);
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#endif
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#endif
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#ifndef __ASSEMBLY__
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#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
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/*
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* return_address uses walk_stackframe to do it's work. If both
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* CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
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* information. For this to work in the function tracer many functions would
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* have to be marked with __notrace. So for now just depend on
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* !CONFIG_ARM_UNWIND.
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*/
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void *return_address(unsigned int);
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#else
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extern inline void *return_address(unsigned int level)
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{
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return NULL;
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}
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#endif
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#define HAVE_ARCH_CALLER_ADDR
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#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
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#define CALLER_ADDR1 ((unsigned long)return_address(1))
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#define CALLER_ADDR2 ((unsigned long)return_address(2))
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#define CALLER_ADDR3 ((unsigned long)return_address(3))
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#define CALLER_ADDR4 ((unsigned long)return_address(4))
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#define CALLER_ADDR5 ((unsigned long)return_address(5))
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#define CALLER_ADDR6 ((unsigned long)return_address(6))
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#endif /* ifndef __ASSEMBLY__ */
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#endif /* _ASM_ARM_FTRACE */
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