cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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unwind-libunwind.c (521B)

      1// SPDX-License-Identifier: GPL-2.0
      2
      3#include <errno.h>
      4#include <libunwind.h>
      5#include "perf_regs.h"
      6#include "../../util/unwind.h"
      7#include "util/debug.h"
      8
      9int libunwind__arch_reg_id(int regnum)
     10{
     11	switch (regnum) {
     12	case UNW_MIPS_R1 ... UNW_MIPS_R25:
     13		return regnum - UNW_MIPS_R1 + PERF_REG_MIPS_R1;
     14	case UNW_MIPS_R28 ... UNW_MIPS_R31:
     15		return regnum - UNW_MIPS_R28 + PERF_REG_MIPS_R28;
     16	case UNW_MIPS_PC:
     17		return PERF_REG_MIPS_PC;
     18	default:
     19		pr_err("unwind: invalid reg id %d\n", regnum);
     20		return -EINVAL;
     21	}
     22}