unwind-libunwind.c

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// SPDX-License-Identifier: GPL-2.0
#include <errno.h>

#ifndef REMOTE_UNWIND_LIBUNWIND
#include <libunwind.h>
#include "perf_regs.h"
#include "../../util/unwind.h"
#include "../../util/debug.h"
#endif

int LIBUNWIND__ARCH_REG_ID(int regnum)
{
    switch (regnum) {
    case UNW_AARCH64_X0:
        return PERF_REG_ARM64_X0;
    case UNW_AARCH64_X1:
        return PERF_REG_ARM64_X1;
    case UNW_AARCH64_X2:
        return PERF_REG_ARM64_X2;
    case UNW_AARCH64_X3:
        return PERF_REG_ARM64_X3;
    case UNW_AARCH64_X4:
        return PERF_REG_ARM64_X4;
    case UNW_AARCH64_X5:
        return PERF_REG_ARM64_X5;
    case UNW_AARCH64_X6:
        return PERF_REG_ARM64_X6;
    case UNW_AARCH64_X7:
        return PERF_REG_ARM64_X7;
    case UNW_AARCH64_X8:
        return PERF_REG_ARM64_X8;
    case UNW_AARCH64_X9:
        return PERF_REG_ARM64_X9;
    case UNW_AARCH64_X10:
        return PERF_REG_ARM64_X10;
    case UNW_AARCH64_X11:
        return PERF_REG_ARM64_X11;
    case UNW_AARCH64_X12:
        return PERF_REG_ARM64_X12;
    case UNW_AARCH64_X13:
        return PERF_REG_ARM64_X13;
    case UNW_AARCH64_X14:
        return PERF_REG_ARM64_X14;
    case UNW_AARCH64_X15:
        return PERF_REG_ARM64_X15;
    case UNW_AARCH64_X16:
        return PERF_REG_ARM64_X16;
    case UNW_AARCH64_X17:
        return PERF_REG_ARM64_X17;
    case UNW_AARCH64_X18:
        return PERF_REG_ARM64_X18;
    case UNW_AARCH64_X19:
        return PERF_REG_ARM64_X19;
    case UNW_AARCH64_X20:
        return PERF_REG_ARM64_X20;
    case UNW_AARCH64_X21:
        return PERF_REG_ARM64_X21;
    case UNW_AARCH64_X22:
        return PERF_REG_ARM64_X22;
    case UNW_AARCH64_X23:
        return PERF_REG_ARM64_X23;
    case UNW_AARCH64_X24:
        return PERF_REG_ARM64_X24;
    case UNW_AARCH64_X25:
        return PERF_REG_ARM64_X25;
    case UNW_AARCH64_X26:
        return PERF_REG_ARM64_X26;
    case UNW_AARCH64_X27:
        return PERF_REG_ARM64_X27;
    case UNW_AARCH64_X28:
        return PERF_REG_ARM64_X28;
    case UNW_AARCH64_X29:
        return PERF_REG_ARM64_X29;
    case UNW_AARCH64_X30:
        return PERF_REG_ARM64_LR;
    case UNW_AARCH64_SP:
        return PERF_REG_ARM64_SP;
    case UNW_AARCH64_PC:
        return PERF_REG_ARM64_PC;
    default:
        pr_err("unwind: invalid reg id %d\n", regnum);
        return -EINVAL;
    }

    return -EINVAL;
}