tools/perf/arch/powerpc/util/unwind-libunwind.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright 2016 Chandan Kumar, IBM Corporation.
   4  */
   5
   6 #include <errno.h>
   7 #include <libunwind.h>
   8 #include <asm/perf_regs.h>
   9 #include "../../util/unwind.h"
  10 #include "../../util/debug.h"
  11
  12 int libunwind__arch_reg_id(int regnum)
  13 {
  14         switch (regnum) {
  15         case UNW_PPC64_R0:
  16                 return PERF_REG_POWERPC_R0;
  17         case UNW_PPC64_R1:
  18                 return PERF_REG_POWERPC_R1;
  19         case UNW_PPC64_R2:
  20                 return PERF_REG_POWERPC_R2;
  21         case UNW_PPC64_R3:
  22                 return PERF_REG_POWERPC_R3;
  23         case UNW_PPC64_R4:
  24                 return PERF_REG_POWERPC_R4;
  25         case UNW_PPC64_R5:
  26                 return PERF_REG_POWERPC_R5;
  27         case UNW_PPC64_R6:
  28                 return PERF_REG_POWERPC_R6;
  29         case UNW_PPC64_R7:
  30                 return PERF_REG_POWERPC_R7;
  31         case UNW_PPC64_R8:
  32                 return PERF_REG_POWERPC_R8;
  33         case UNW_PPC64_R9:
  34                 return PERF_REG_POWERPC_R9;
  35         case UNW_PPC64_R10:
  36                 return PERF_REG_POWERPC_R10;
  37         case UNW_PPC64_R11:
  38                 return PERF_REG_POWERPC_R11;
  39         case UNW_PPC64_R12:
  40                 return PERF_REG_POWERPC_R12;
  41         case UNW_PPC64_R13:
  42                 return PERF_REG_POWERPC_R13;
  43         case UNW_PPC64_R14:
  44                 return PERF_REG_POWERPC_R14;
  45         case UNW_PPC64_R15:
  46                 return PERF_REG_POWERPC_R15;
  47         case UNW_PPC64_R16:
  48                 return PERF_REG_POWERPC_R16;
  49         case UNW_PPC64_R17:
  50                 return PERF_REG_POWERPC_R17;
  51         case UNW_PPC64_R18:
  52                 return PERF_REG_POWERPC_R18;
  53         case UNW_PPC64_R19:
  54                 return PERF_REG_POWERPC_R19;
  55         case UNW_PPC64_R20:
  56                 return PERF_REG_POWERPC_R20;
  57         case UNW_PPC64_R21:
  58                 return PERF_REG_POWERPC_R21;
  59         case UNW_PPC64_R22:
  60                 return PERF_REG_POWERPC_R22;
  61         case UNW_PPC64_R23:
  62                 return PERF_REG_POWERPC_R23;
  63         case UNW_PPC64_R24:
  64                 return PERF_REG_POWERPC_R24;
  65         case UNW_PPC64_R25:
  66                 return PERF_REG_POWERPC_R25;
  67         case UNW_PPC64_R26:
  68                 return PERF_REG_POWERPC_R26;
  69         case UNW_PPC64_R27:
  70                 return PERF_REG_POWERPC_R27;
  71         case UNW_PPC64_R28:
  72                 return PERF_REG_POWERPC_R28;
  73         case UNW_PPC64_R29:
  74                 return PERF_REG_POWERPC_R29;
  75         case UNW_PPC64_R30:
  76                 return PERF_REG_POWERPC_R30;
  77         case UNW_PPC64_R31:
  78                 return PERF_REG_POWERPC_R31;
  79         case UNW_PPC64_LR:
  80                 return PERF_REG_POWERPC_LINK;
  81         case UNW_PPC64_CTR:
  82                 return PERF_REG_POWERPC_CTR;
  83         case UNW_PPC64_XER:
  84                 return PERF_REG_POWERPC_XER;
  85         case UNW_PPC64_NIP:
  86                 return PERF_REG_POWERPC_NIP;
  87         default:
  88                 pr_err("unwind: invalid reg id %d\n", regnum);
  89                 return -EINVAL;
  90         }
  91         return -EINVAL;
  92 }