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75 lines
1.7 KiB
75 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_ARM_FTRACE |
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#define _ASM_ARM_FTRACE |
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#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS |
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#define ARCH_SUPPORTS_FTRACE_OPS 1 |
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#endif |
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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 __gnu_mcount_nc(void); |
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#ifdef CONFIG_DYNAMIC_FTRACE |
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struct dyn_arch_ftrace { |
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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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#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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static 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 ftrace_return_address(n) return_address(n) |
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#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME |
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static inline bool arch_syscall_match_sym_name(const char *sym, |
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const char *name) |
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{ |
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if (!strcmp(sym, "sys_mmap2")) |
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sym = "sys_mmap_pgoff"; |
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else if (!strcmp(sym, "sys_statfs64_wrapper")) |
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sym = "sys_statfs64"; |
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else if (!strcmp(sym, "sys_fstatfs64_wrapper")) |
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sym = "sys_fstatfs64"; |
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else if (!strcmp(sym, "sys_arm_fadvise64_64")) |
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sym = "sys_fadvise64_64"; |
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/* Ignore case since sym may start with "SyS" instead of "sys" */ |
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return !strcasecmp(sym, name); |
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} |
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#endif /* ifndef __ASSEMBLY__ */ |
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#endif /* _ASM_ARM_FTRACE */
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