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

   1 /*
   2  * Copyright 2016 Chandan Kumar, IBM Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version
   7  * 2 of the License, or (at your option) any later version.
   8  */
   9
  10 #include <errno.h>
  11 #include <libunwind.h>
  12 #include <asm/perf_regs.h>
  13 #include "../../util/unwind.h"
  14 #include "../../util/debug.h"
  15
  16 int libunwind__arch_reg_id(int regnum)
  17 {
  18         switch (regnum) {
  19         case UNW_PPC64_R0:
  20                 return PERF_REG_POWERPC_R0;
  21         case UNW_PPC64_R1:
  22                 return PERF_REG_POWERPC_R1;
  23         case UNW_PPC64_R2:
  24                 return PERF_REG_POWERPC_R2;
  25         case UNW_PPC64_R3:
  26                 return PERF_REG_POWERPC_R3;
  27         case UNW_PPC64_R4:
  28                 return PERF_REG_POWERPC_R4;
  29         case UNW_PPC64_R5:
  30                 return PERF_REG_POWERPC_R5;
  31         case UNW_PPC64_R6:
  32                 return PERF_REG_POWERPC_R6;
  33         case UNW_PPC64_R7:
  34                 return PERF_REG_POWERPC_R7;
  35         case UNW_PPC64_R8:
  36                 return PERF_REG_POWERPC_R8;
  37         case UNW_PPC64_R9:
  38                 return PERF_REG_POWERPC_R9;
  39         case UNW_PPC64_R10:
  40                 return PERF_REG_POWERPC_R10;
  41         case UNW_PPC64_R11:
  42                 return PERF_REG_POWERPC_R11;
  43         case UNW_PPC64_R12:
  44                 return PERF_REG_POWERPC_R12;
  45         case UNW_PPC64_R13:
  46                 return PERF_REG_POWERPC_R13;
  47         case UNW_PPC64_R14:
  48                 return PERF_REG_POWERPC_R14;
  49         case UNW_PPC64_R15:
  50                 return PERF_REG_POWERPC_R15;
  51         case UNW_PPC64_R16:
  52                 return PERF_REG_POWERPC_R16;
  53         case UNW_PPC64_R17:
  54                 return PERF_REG_POWERPC_R17;
  55         case UNW_PPC64_R18:
  56                 return PERF_REG_POWERPC_R18;
  57         case UNW_PPC64_R19:
  58                 return PERF_REG_POWERPC_R19;
  59         case UNW_PPC64_R20:
  60                 return PERF_REG_POWERPC_R20;
  61         case UNW_PPC64_R21:
  62                 return PERF_REG_POWERPC_R21;
  63         case UNW_PPC64_R22:
  64                 return PERF_REG_POWERPC_R22;
  65         case UNW_PPC64_R23:
  66                 return PERF_REG_POWERPC_R23;
  67         case UNW_PPC64_R24:
  68                 return PERF_REG_POWERPC_R24;
  69         case UNW_PPC64_R25:
  70                 return PERF_REG_POWERPC_R25;
  71         case UNW_PPC64_R26:
  72                 return PERF_REG_POWERPC_R26;
  73         case UNW_PPC64_R27:
  74                 return PERF_REG_POWERPC_R27;
  75         case UNW_PPC64_R28:
  76                 return PERF_REG_POWERPC_R28;
  77         case UNW_PPC64_R29:
  78                 return PERF_REG_POWERPC_R29;
  79         case UNW_PPC64_R30:
  80                 return PERF_REG_POWERPC_R30;
  81         case UNW_PPC64_R31:
  82                 return PERF_REG_POWERPC_R31;
  83         case UNW_PPC64_LR:
  84                 return PERF_REG_POWERPC_LINK;
  85         case UNW_PPC64_CTR:
  86                 return PERF_REG_POWERPC_CTR;
  87         case UNW_PPC64_XER:
  88                 return PERF_REG_POWERPC_XER;
  89         case UNW_PPC64_NIP:
  90                 return PERF_REG_POWERPC_NIP;
  91         default:
  92                 pr_err("unwind: invalid reg id %d\n", regnum);
  93                 return -EINVAL;
  94         }
  95         return -EINVAL;
  96 }