gdb/frv-tdep.h

   1 /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.
   2    Copyright (C) 2004-2020 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 #ifndef FRV_TDEP_H
  20 #define FRV_TDEP_H
  21
  22 /* Enumerate the possible ABIs for FR-V.  */
  23 enum frv_abi
  24   {
  25     FRV_ABI_EABI,
  26     FRV_ABI_FDPIC
  27   };
  28
  29 /* Register numbers.  The order in which these appear define the
  30    remote protocol, so take care in changing them.  */
  31 enum {
  32   /* Register numbers 0 -- 63 are always reserved for general-purpose
  33      registers.  The chip at hand may have less.  */
  34   first_gpr_regnum = 0,
  35   sp_regnum = 1,
  36   fp_regnum = 2,
  37   struct_return_regnum = 3,
  38   last_gpr_regnum = 63,
  39
  40   /* Register numbers 64 -- 127 are always reserved for floating-point
  41      registers.  The chip at hand may have less.  */
  42   first_fpr_regnum = 64,
  43   last_fpr_regnum = 127,
  44
  45   /* The PC register.  */
  46   pc_regnum = 128,
  47
  48   /* Register numbers 129 on up are always reserved for special-purpose
  49      registers.  */
  50   first_spr_regnum = 129,
  51   psr_regnum = 129,
  52   ccr_regnum = 130,
  53   cccr_regnum = 131,
  54   fdpic_loadmap_exec_regnum = 132,
  55   fdpic_loadmap_interp_regnum = 133,
  56   tbr_regnum = 135,
  57   brr_regnum = 136,
  58   dbar0_regnum = 137,
  59   dbar1_regnum = 138,
  60   dbar2_regnum = 139,
  61   dbar3_regnum = 140,
  62   scr0_regnum = 141,
  63   scr1_regnum = 142,
  64   scr2_regnum = 143,
  65   scr3_regnum = 144,
  66   lr_regnum = 145,
  67   lcr_regnum = 146,
  68   iacc0h_regnum = 147,
  69   iacc0l_regnum = 148,
  70   fsr0_regnum = 149,
  71   acc0_regnum = 150,
  72   acc7_regnum = 157,
  73   accg0123_regnum = 158,
  74   accg4567_regnum = 159,
  75   msr0_regnum = 160,
  76   msr1_regnum = 161,
  77   gner0_regnum = 162,
  78   gner1_regnum = 163,
  79   fner0_regnum = 164,
  80   fner1_regnum = 165,
  81   last_spr_regnum = 165,
  82
  83   /* The total number of registers we know exist.  */
  84   frv_num_regs = last_spr_regnum + 1,
  85
  86   /* Pseudo registers */
  87   first_pseudo_regnum = frv_num_regs,
  88
  89   /* iacc0 - the 64-bit concatenation of iacc0h and iacc0l.  */
  90   iacc0_regnum = first_pseudo_regnum + 0,
  91   accg0_regnum = first_pseudo_regnum + 1,
  92   accg7_regnum = accg0_regnum + 7,
  93
  94   last_pseudo_regnum = accg7_regnum,
  95   frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1,
  96 };
  97
  98 /* Return the FR-V ABI associated with GDBARCH.  */
  99 enum frv_abi frv_abi (struct gdbarch *gdbarch);
 100
 101 /* Fetch the interpreter and executable loadmap addresses (for shared
 102    library support) for the FDPIC ABI.  Return 0 if successful, -1 if
 103    not.  (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.)  */
 104 int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,
 105                                  CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);
 106
 107 /* Given a function entry point, find and return the GOT address for the
 108    containing load module.  */
 109 CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr);
 110
 111 /* Given a function entry point, find and return the canonical descriptor
 112    for that function, if one exists.  If no canonical descriptor could
 113    be found, return 0.  */
 114 CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point);
 115
 116
 117 /* Given an objfile, return the address of its link map.  This value is
 118    needed for TLS support.  */
 119 CORE_ADDR frv_fetch_objfile_link_map (struct objfile *objfile);
 120
 121 struct target_so_ops;
 122 extern struct target_so_ops frv_so_ops;
 123
 124 #endif /* FRV_TDEP_H */