kernel/tools/perf/arch/arm/util/unwind-libunwind.c

   1
   2 #include <errno.h>
   3 #include <libunwind.h>
   4 #include "perf_regs.h"
   5 #include "../../util/unwind.h"
   6 #include "../../util/debug.h"
   7
   8 int libunwind__arch_reg_id(int regnum)
   9 {
  10         switch (regnum) {
  11         case UNW_ARM_R0:
  12                 return PERF_REG_ARM_R0;
  13         case UNW_ARM_R1:
  14                 return PERF_REG_ARM_R1;
  15         case UNW_ARM_R2:
  16                 return PERF_REG_ARM_R2;
  17         case UNW_ARM_R3:
  18                 return PERF_REG_ARM_R3;
  19         case UNW_ARM_R4:
  20                 return PERF_REG_ARM_R4;
  21         case UNW_ARM_R5:
  22                 return PERF_REG_ARM_R5;
  23         case UNW_ARM_R6:
  24                 return PERF_REG_ARM_R6;
  25         case UNW_ARM_R7:
  26                 return PERF_REG_ARM_R7;
  27         case UNW_ARM_R8:
  28                 return PERF_REG_ARM_R8;
  29         case UNW_ARM_R9:
  30                 return PERF_REG_ARM_R9;
  31         case UNW_ARM_R10:
  32                 return PERF_REG_ARM_R10;
  33         case UNW_ARM_R11:
  34                 return PERF_REG_ARM_FP;
  35         case UNW_ARM_R12:
  36                 return PERF_REG_ARM_IP;
  37         case UNW_ARM_R13:
  38                 return PERF_REG_ARM_SP;
  39         case UNW_ARM_R14:
  40                 return PERF_REG_ARM_LR;
  41         case UNW_ARM_R15:
  42                 return PERF_REG_ARM_PC;
  43         default:
  44                 pr_err("unwind: invalid reg id %d\n", regnum);
  45                 return -EINVAL;
  46         }
  47
  48         return -EINVAL;
  49 }