43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PERF_DWARF_REGS_H_
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#define _PERF_DWARF_REGS_H_
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#define DWARF_REG_PC 0xd3af9c /* random number */
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#define DWARF_REG_FB 0xd3affb /* random number */
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#ifdef HAVE_DWARF_SUPPORT
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const char *get_arch_regstr(unsigned int n);
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/*
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* get_dwarf_regstr - Returns ftrace register string from DWARF regnum
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* n: DWARF register number
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* machine: ELF machine signature (EM_*)
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*/
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const char *get_dwarf_regstr(unsigned int n, unsigned int machine);
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int get_arch_regnum(const char *name);
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/*
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* get_dwarf_regnum - Returns DWARF regnum from register name
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* name: architecture register name
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* machine: ELF machine signature (EM_*)
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*/
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int get_dwarf_regnum(const char *name, unsigned int machine);
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#else /* HAVE_DWARF_SUPPORT */
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static inline int get_dwarf_regnum(const char *name __maybe_unused,
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unsigned int machine __maybe_unused)
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{
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return -1;
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}
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#endif
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#ifdef HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
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/*
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* Arch should support fetching the offset of a register in pt_regs
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* by its name. See kernel's regs_query_register_offset in
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* arch/xxx/kernel/ptrace.c.
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*/
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int regs_query_register_offset(const char *name);
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#endif
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#endif
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