gdb/frv-tdep.h

   1 /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.
   2    Copyright (C) 2004-2018 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /* Enumerate the possible ABIs for FR-V.  */
  20 enum frv_abi
  21   {
  22     FRV_ABI_EABI,
  23     FRV_ABI_FDPIC
  24   };
  25
  26 /* Register numbers.  The order in which these appear define the
  27    remote protocol, so take care in changing them.  */
  28 enum {
  29   /* Register numbers 0 -- 63 are always reserved for general-purpose
  30      registers.  The chip at hand may have less.  */
  31   first_gpr_regnum = 0,
  32   sp_regnum = 1,
  33   fp_regnum = 2,
  34   struct_return_regnum = 3,
  35   last_gpr_regnum = 63,
  36
  37   /* Register numbers 64 -- 127 are always reserved for floating-point
  38      registers.  The chip at hand may have less.  */
  39   first_fpr_regnum = 64,
  40   last_fpr_regnum = 127,
  41
  42   /* The PC register.  */
  43   pc_regnum = 128,
  44
  45   /* Register numbers 129 on up are always reserved for special-purpose
  46      registers.  */
  47   first_spr_regnum = 129,
  48   psr_regnum = 129,
  49   ccr_regnum = 130,
  50   cccr_regnum = 131,
  51   fdpic_loadmap_exec_regnum = 132,
  52   fdpic_loadmap_interp_regnum = 133,
  53   tbr_regnum = 135,
  54   brr_regnum = 136,
  55   dbar0_regnum = 137,
  56   dbar1_regnum = 138,
  57   dbar2_regnum = 139,
  58   dbar3_regnum = 140,
  59   scr0_regnum = 141,
  60   scr1_regnum = 142,
  61   scr2_regnum = 143,
  62   scr3_regnum = 144,
  63   lr_regnum = 145,
  64   lcr_regnum = 146,
  65   iacc0h_regnum = 147,
  66   iacc0l_regnum = 148,
  67   fsr0_regnum = 149,
  68   acc0_regnum = 150,
  69   acc7_regnum = 157,
  70   accg0123_regnum = 158,
  71   accg4567_regnum = 159,
  72   msr0_regnum = 160,
  73   msr1_regnum = 161,
  74   gner0_regnum = 162,
  75   gner1_regnum = 163,
  76   fner0_regnum = 164,
  77   fner1_regnum = 165,
  78   last_spr_regnum = 165,
  79
  80   /* The total number of registers we know exist.  */
  81   frv_num_regs = last_spr_regnum + 1,
  82
  83   /* Pseudo registers */
  84   first_pseudo_regnum = frv_num_regs,
  85
  86   /* iacc0 - the 64-bit concatenation of iacc0h and iacc0l.  */
  87   iacc0_regnum = first_pseudo_regnum + 0,
  88   accg0_regnum = first_pseudo_regnum + 1,
  89   accg7_regnum = accg0_regnum + 7,
  90
  91   last_pseudo_regnum = accg7_regnum,
  92   frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1,
  93 };
  94
  95 /* Return the FR-V ABI associated with GDBARCH.  */
  96 enum frv_abi frv_abi (struct gdbarch *gdbarch);
  97
  98 /* Fetch the interpreter and executable loadmap addresses (for shared
  99    library support) for the FDPIC ABI.  Return 0 if successful, -1 if
 100    not.  (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.)  */
 101 int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,
 102                                  CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);
 103
 104 /* Given a function entry point, find and return the GOT address for the
 105    containing load module.  */
 106 CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr);
 107
 108 /* Given a function entry point, find and return the canonical descriptor
 109    for that function, if one exists.  If no canonical descriptor could
 110    be found, return 0.  */
 111 CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point);
 112
 113
 114 /* Given an objfile, return the address of its link map.  This value is
 115    needed for TLS support.  */
 116 CORE_ADDR frv_fetch_objfile_link_map (struct objfile *objfile);
 117
 118 struct target_so_ops;
 119 extern struct target_so_ops frv_so_ops;
 120