1. 根目录:
2. tools
3. perf
4. arch
5. arm64
6. include
7. perf_regs.h

#ifndef ARCH_PERF_REGS_H
#define ARCH_PERF_REGS_H

#include <stdlib.h>
#include <linux/types.h>
#include <asm/perf_regs.h>

#define PERF_REGS_MASK	((1ULL << PERF_REG_ARM64_MAX) - 1)
#define PERF_REGS_MAX	PERF_REG_ARM64_MAX

#define PERF_REG_IP	PERF_REG_ARM64_PC
#define PERF_REG_SP	PERF_REG_ARM64_SP

static inline const char *perf_reg_name(int id)
{
	switch (id) {
	case PERF_REG_ARM64_X0:
		return "x0";
	case PERF_REG_ARM64_X1:
		return "x1";
	case PERF_REG_ARM64_X2:
		return "x2";
	case PERF_REG_ARM64_X3:
		return "x3";
	case PERF_REG_ARM64_X4:
		return "x4";
	case PERF_REG_ARM64_X5:
		return "x5";
	case PERF_REG_ARM64_X6:
		return "x6";
	case PERF_REG_ARM64_X7:
		return "x7";
	case PERF_REG_ARM64_X8:
		return "x8";
	case PERF_REG_ARM64_X9:
		return "x9";
	case PERF_REG_ARM64_X10:
		return "x10";
	case PERF_REG_ARM64_X11:
		return "x11";
	case PERF_REG_ARM64_X12:
		return "x12";
	case PERF_REG_ARM64_X13:
		return "x13";
	case PERF_REG_ARM64_X14:
		return "x14";
	case PERF_REG_ARM64_X15:
		return "x15";
	case PERF_REG_ARM64_X16:
		return "x16";
	case PERF_REG_ARM64_X17:
		return "x17";
	case PERF_REG_ARM64_X18:
		return "x18";
	case PERF_REG_ARM64_X19:
		return "x19";
	case PERF_REG_ARM64_X20:
		return "x20";
	case PERF_REG_ARM64_X21:
		return "x21";
	case PERF_REG_ARM64_X22:
		return "x22";
	case PERF_REG_ARM64_X23:
		return "x23";
	case PERF_REG_ARM64_X24:
		return "x24";
	case PERF_REG_ARM64_X25:
		return "x25";
	case PERF_REG_ARM64_X26:
		return "x26";
	case PERF_REG_ARM64_X27:
		return "x27";
	case PERF_REG_ARM64_X28:
		return "x28";
	case PERF_REG_ARM64_X29:
		return "x29";
	case PERF_REG_ARM64_SP:
		return "sp";
	case PERF_REG_ARM64_LR:
		return "lr";
	case PERF_REG_ARM64_PC:
		return "pc";
	default:
		return NULL;
	}

	return NULL;
}

#endif /* ARCH_PERF_REGS_H */