Contributors: 8
Author Tokens Token Proportion Commits Commit Proportion
Athira Rajeev 50 29.59% 1 10.00%
Namhyung Kim 42 24.85% 1 10.00%
Masami Hiramatsu 30 17.75% 2 20.00%
Wang Nan 21 12.43% 2 20.00%
Ian Munsie 21 12.43% 1 10.00%
Arnaldo Carvalho de Melo 3 1.78% 1 10.00%
Greg Kroah-Hartman 1 0.59% 1 10.00%
Ingo Molnar 1 0.59% 1 10.00%
Total 169 10 
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PERF_DWARF_REGS_H_
#define _PERF_DWARF_REGS_H_
#include "annotate.h"

#define DWARF_REG_PC  0xd3af9c /* random number */
#define DWARF_REG_FB  0xd3affb /* random number */

#ifdef HAVE_DWARF_SUPPORT
const char *get_arch_regstr(unsigned int n);
/*
 * get_dwarf_regstr - Returns ftrace register string from DWARF regnum
 * n: DWARF register number
 * machine: ELF machine signature (EM_*)
 */
const char *get_dwarf_regstr(unsigned int n, unsigned int machine);

int get_arch_regnum(const char *name);
/*
 * get_dwarf_regnum - Returns DWARF regnum from register name
 * name: architecture register name
 * machine: ELF machine signature (EM_*)
 */
int get_dwarf_regnum(const char *name, unsigned int machine);

#else /* HAVE_DWARF_SUPPORT */

static inline int get_dwarf_regnum(const char *name __maybe_unused,
				   unsigned int machine __maybe_unused)
{
	return -1;
}
#endif

#if !defined(__powerpc__) || !defined(HAVE_DWARF_SUPPORT)
static inline void get_powerpc_regs(u32 raw_insn __maybe_unused, int is_source __maybe_unused,
		struct annotated_op_loc *op_loc __maybe_unused)
{
	return;
}
#else
void get_powerpc_regs(u32 raw_insn, int is_source, struct annotated_op_loc *op_loc);
#endif

#ifdef HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
/*
 * Arch should support fetching the offset of a register in pt_regs
 * by its name. See kernel's regs_query_register_offset in
 * arch/xxx/kernel/ptrace.c.
 */
int regs_query_register_offset(const char *name);
#endif
#endif