2024-09-09 08:52:07 +00:00
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#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 ((unsigned long)(__gnu_mcount_nc))
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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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#ifdef CONFIG_DYNAMIC_FTRACE
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struct dyn_arch_ftrace {
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#ifdef CONFIG_OLD_MCOUNT
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bool old_mcount;
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#endif
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};
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static inline unsigned long ftrace_call_adjust(unsigned long addr)
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{
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/* With Thumb-2, the recorded addresses have the lsb set */
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return addr & ~1;
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}
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extern void ftrace_caller_old(void);
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extern void ftrace_call_old(void);
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#endif
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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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2024-09-09 08:57:42 +00:00
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static inline void *return_address(unsigned int level)
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2024-09-09 08:52:07 +00:00
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{
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return NULL;
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}
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#endif
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2024-09-09 08:57:42 +00:00
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#define ftrace_return_address(n) return_address(n)
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2024-09-09 08:52:07 +00:00
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#endif /* ifndef __ASSEMBLY__ */
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#endif /* _ASM_ARM_FTRACE */
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