src/aarch64/init.h

   1 /* libunwind - a platform-independent unwind library
   2    Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
   3    Copyright (C) 2013 Linaro Limited
   4
   5 This file is part of libunwind.
   6
   7 Permission is hereby granted, free of charge, to any person obtaining
   8 a copy of this software and associated documentation files (the
   9 "Software"), to deal in the Software without restriction, including
  10 without limitation the rights to use, copy, modify, merge, publish,
  11 distribute, sublicense, and/or sell copies of the Software, and to
  12 permit persons to whom the Software is furnished to do so, subject to
  13 the following conditions:
  14
  15 The above copyright notice and this permission notice shall be
  16 included in all copies or substantial portions of the Software.
  17
  18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
  25
  26 #include "unwind_i.h"
  27
  28 static inline int
  29 common_init (struct cursor *c, unsigned use_prev_instr)
  30 {
  31   int ret, i;
  32
  33   c->dwarf.loc[UNW_AARCH64_X0]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X0);
  34   c->dwarf.loc[UNW_AARCH64_X1]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X1);
  35   c->dwarf.loc[UNW_AARCH64_X2]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X2);
  36   c->dwarf.loc[UNW_AARCH64_X3]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X3);
  37   c->dwarf.loc[UNW_AARCH64_X4]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X4);
  38   c->dwarf.loc[UNW_AARCH64_X5]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X5);
  39   c->dwarf.loc[UNW_AARCH64_X6]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X6);
  40   c->dwarf.loc[UNW_AARCH64_X7]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X7);
  41   c->dwarf.loc[UNW_AARCH64_X8]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X8);
  42   c->dwarf.loc[UNW_AARCH64_X9]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X9);
  43   c->dwarf.loc[UNW_AARCH64_X10] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X10);
  44   c->dwarf.loc[UNW_AARCH64_X11] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X11);
  45   c->dwarf.loc[UNW_AARCH64_X12] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X12);
  46   c->dwarf.loc[UNW_AARCH64_X13] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X13);
  47   c->dwarf.loc[UNW_AARCH64_X14] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X14);
  48   c->dwarf.loc[UNW_AARCH64_X15] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X15);
  49   c->dwarf.loc[UNW_AARCH64_X16] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X16);
  50   c->dwarf.loc[UNW_AARCH64_X17] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X17);
  51   c->dwarf.loc[UNW_AARCH64_X18] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X18);
  52   c->dwarf.loc[UNW_AARCH64_X19] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X19);
  53   c->dwarf.loc[UNW_AARCH64_X20] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X20);
  54   c->dwarf.loc[UNW_AARCH64_X21] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X21);
  55   c->dwarf.loc[UNW_AARCH64_X22] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X22);
  56   c->dwarf.loc[UNW_AARCH64_X23] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X23);
  57   c->dwarf.loc[UNW_AARCH64_X24] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X24);
  58   c->dwarf.loc[UNW_AARCH64_X25] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X25);
  59   c->dwarf.loc[UNW_AARCH64_X26] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X26);
  60   c->dwarf.loc[UNW_AARCH64_X27] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X27);
  61   c->dwarf.loc[UNW_AARCH64_X28] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X28);
  62   c->dwarf.loc[UNW_AARCH64_X29] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X29);
  63   c->dwarf.loc[UNW_AARCH64_X30] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X30);
  64   c->dwarf.loc[UNW_AARCH64_SP]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_SP);
  65   c->dwarf.loc[UNW_AARCH64_PC]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_PC);
  66   c->dwarf.loc[UNW_AARCH64_PSTATE] = DWARF_REG_LOC (&c->dwarf,
  67                                                     UNW_AARCH64_PSTATE);
  68   c->dwarf.loc[UNW_AARCH64_V0]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V0);
  69   c->dwarf.loc[UNW_AARCH64_V1]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V1);
  70   c->dwarf.loc[UNW_AARCH64_V2]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V2);
  71   c->dwarf.loc[UNW_AARCH64_V3]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V3);
  72   c->dwarf.loc[UNW_AARCH64_V4]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V4);
  73   c->dwarf.loc[UNW_AARCH64_V5]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V5);
  74   c->dwarf.loc[UNW_AARCH64_V6]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V6);
  75   c->dwarf.loc[UNW_AARCH64_V7]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V7);
  76   c->dwarf.loc[UNW_AARCH64_V8]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V8);
  77   c->dwarf.loc[UNW_AARCH64_V9]  = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V9);
  78   c->dwarf.loc[UNW_AARCH64_V10] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V10);
  79   c->dwarf.loc[UNW_AARCH64_V11] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V11);
  80   c->dwarf.loc[UNW_AARCH64_V12] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V12);
  81   c->dwarf.loc[UNW_AARCH64_V13] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V13);
  82   c->dwarf.loc[UNW_AARCH64_V14] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V14);
  83   c->dwarf.loc[UNW_AARCH64_V15] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V15);
  84   c->dwarf.loc[UNW_AARCH64_V16] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V16);
  85   c->dwarf.loc[UNW_AARCH64_V17] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V17);
  86   c->dwarf.loc[UNW_AARCH64_V18] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V18);
  87   c->dwarf.loc[UNW_AARCH64_V19] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V19);
  88   c->dwarf.loc[UNW_AARCH64_V20] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V20);
  89   c->dwarf.loc[UNW_AARCH64_V21] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V21);
  90   c->dwarf.loc[UNW_AARCH64_V22] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V22);
  91   c->dwarf.loc[UNW_AARCH64_V23] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V23);
  92   c->dwarf.loc[UNW_AARCH64_V24] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V24);
  93   c->dwarf.loc[UNW_AARCH64_V25] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V25);
  94   c->dwarf.loc[UNW_AARCH64_V26] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V26);
  95   c->dwarf.loc[UNW_AARCH64_V27] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V27);
  96   c->dwarf.loc[UNW_AARCH64_V28] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V28);
  97   c->dwarf.loc[UNW_AARCH64_V29] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V29);
  98   c->dwarf.loc[UNW_AARCH64_V30] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V30);
  99   c->dwarf.loc[UNW_AARCH64_V31] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V31);
 100
 101   for (i = UNW_AARCH64_PSTATE + 1; i < UNW_AARCH64_V0; ++i)
 102     c->dwarf.loc[i] = DWARF_NULL_LOC;
 103
 104   ret = dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_PC], &c->dwarf.ip);
 105   if (ret < 0)
 106     return ret;
 107
 108   ret = dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_SP], &c->dwarf.cfa);
 109   if (ret < 0)
 110     return ret;
 111
 112   c->sigcontext_format = AARCH64_SCF_NONE;
 113   c->sigcontext_addr = 0;
 114   c->sigcontext_sp = 0;
 115   c->sigcontext_pc = 0;
 116
 117   c->dwarf.args_size = 0;
 118   c->dwarf.stash_frames = 0;
 119   c->dwarf.use_prev_instr = use_prev_instr;
 120   c->dwarf.pi_valid = 0;
 121   c->dwarf.pi_is_dynamic = 0;
 122   c->dwarf.hint = 0;
 123   c->dwarf.prev_rs = 0;
 124
 125   return 0;
 126 }