perf_regs.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ARCH_PERF_REGS_H
#define ARCH_PERF_REGS_H

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

void perf_regs_load(u64 *regs);

#ifndef HAVE_ARCH_X86_64_SUPPORT
#define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1)
#define PERF_REGS_MAX PERF_REG_X86_32_MAX
#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_32
#else
#define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
               (1ULL << PERF_REG_X86_ES) | \
               (1ULL << PERF_REG_X86_FS) | \
               (1ULL << PERF_REG_X86_GS))
#define PERF_REGS_MASK (((1ULL << PERF_REG_X86_64_MAX) - 1) & ~REG_NOSUPPORT)
#define PERF_REGS_MAX PERF_REG_X86_64_MAX
#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64
#endif
#define PERF_REG_IP PERF_REG_X86_IP
#define PERF_REG_SP PERF_REG_X86_SP

static inline const char *perf_reg_name(int id)
{
    switch (id) {
    case PERF_REG_X86_AX:
        return "AX";
    case PERF_REG_X86_BX:
        return "BX";
    case PERF_REG_X86_CX:
        return "CX";
    case PERF_REG_X86_DX:
        return "DX";
    case PERF_REG_X86_SI:
        return "SI";
    case PERF_REG_X86_DI:
        return "DI";
    case PERF_REG_X86_BP:
        return "BP";
    case PERF_REG_X86_SP:
        return "SP";
    case PERF_REG_X86_IP:
        return "IP";
    case PERF_REG_X86_FLAGS:
        return "FLAGS";
    case PERF_REG_X86_CS:
        return "CS";
    case PERF_REG_X86_SS:
        return "SS";
    case PERF_REG_X86_DS:
        return "DS";
    case PERF_REG_X86_ES:
        return "ES";
    case PERF_REG_X86_FS:
        return "FS";
    case PERF_REG_X86_GS:
        return "GS";
#ifdef HAVE_ARCH_X86_64_SUPPORT
    case PERF_REG_X86_R8:
        return "R8";
    case PERF_REG_X86_R9:
        return "R9";
    case PERF_REG_X86_R10:
        return "R10";
    case PERF_REG_X86_R11:
        return "R11";
    case PERF_REG_X86_R12:
        return "R12";
    case PERF_REG_X86_R13:
        return "R13";
    case PERF_REG_X86_R14:
        return "R14";
    case PERF_REG_X86_R15:
        return "R15";
#endif /* HAVE_ARCH_X86_64_SUPPORT */
    default:
        return NULL;
    }

    return NULL;
}

#endif /* ARCH_PERF_REGS_H */