gdb/frv-tdep.h

   1 /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.
   2    Copyright 2004 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 2 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, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 /* Enumerate the possible ABIs for FR-V.  */
  22 enum frv_abi
  23   {
  24     FRV_ABI_EABI,
  25     FRV_ABI_FDPIC
  26   };
  27
  28 /* Register numbers.  The order in which these appear define the
  29    remote protocol, so take care in changing them.  */
  30 enum {
  31   /* Register numbers 0 -- 63 are always reserved for general-purpose
  32      registers.  The chip at hand may have less.  */
  33   first_gpr_regnum = 0,
  34   sp_regnum = 1,
  35   fp_regnum = 2,
  36   struct_return_regnum = 3,
  37   last_gpr_regnum = 63,
  38
  39   /* Register numbers 64 -- 127 are always reserved for floating-point
  40      registers.  The chip at hand may have less.  */
  41   first_fpr_regnum = 64,
  42   last_fpr_regnum = 127,
  43
  44   /* The PC register.  */
  45   pc_regnum = 128,
  46
  47   /* Register numbers 129 on up are always reserved for special-purpose
  48      registers.  */
  49   first_spr_regnum = 129,
  50   psr_regnum = 129,
  51   ccr_regnum = 130,
  52   cccr_regnum = 131,
  53   fdpic_loadmap_exec_regnum = 132,
  54   fdpic_loadmap_interp_regnum = 133,
  55   tbr_regnum = 135,
  56   brr_regnum = 136,
  57   dbar0_regnum = 137,
  58   dbar1_regnum = 138,
  59   dbar2_regnum = 139,
  60   dbar3_regnum = 140,
  61   lr_regnum = 145,
  62   lcr_regnum = 146,
  63   iacc0h_regnum = 147,
  64   iacc0l_regnum = 148,
  65   last_spr_regnum = 148,
  66
  67   /* The total number of registers we know exist.  */
  68   frv_num_regs = last_spr_regnum + 1,
  69
  70   /* Pseudo registers */
  71   first_pseudo_regnum = frv_num_regs,
  72
  73   /* iacc0 - the 64-bit concatenation of iacc0h and iacc0l.  */
  74   iacc0_regnum = first_pseudo_regnum + 0,
  75
  76   last_pseudo_regnum = iacc0_regnum,
  77   frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1,
  78 };
  79
  80 /* Return the FR-V ABI associated with GDBARCH.  */
  81 enum frv_abi frv_abi (struct gdbarch *gdbarch);
  82
  83 /* Fetch the interpreter and executable loadmap addresses (for shared
  84    library support) for the FDPIC ABI.  Return 0 if successful, -1 if
  85    not.  (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.)  */
  86 int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,
  87                                  CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);
  88
  89 /* Given a function entry point, find and return the GOT address for the
  90    containing load module.  */
  91 CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr);
  92
  93 /* Given a function entry point, find and return the canonical descriptor
  94    for that function, if one exists.  If no canonical descriptor could
  95    be found, return 0.  */
  96 CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point);