Subversion Repositories openrisc_2011-10-31

/* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.

   Copyright (C) 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* Enumerate the possible ABIs for FR-V.  */

enum frv_abi

  {

    FRV_ABI_EABI,

    FRV_ABI_FDPIC

  };

/* Register numbers.  The order in which these appear define the

   remote protocol, so take care in changing them.  */

enum {

  /* Register numbers 0 -- 63 are always reserved for general-purpose

     registers.  The chip at hand may have less.  */

  first_gpr_regnum = 0,

  sp_regnum = 1,

  fp_regnum = 2,

  struct_return_regnum = 3,

  last_gpr_regnum = 63,

  /* Register numbers 64 -- 127 are always reserved for floating-point

     registers.  The chip at hand may have less.  */

  first_fpr_regnum = 64,

  last_fpr_regnum = 127,

  /* The PC register.  */

  pc_regnum = 128,

  /* Register numbers 129 on up are always reserved for special-purpose

     registers.  */

  first_spr_regnum = 129,

  psr_regnum = 129,

  ccr_regnum = 130,

  cccr_regnum = 131,

  fdpic_loadmap_exec_regnum = 132,

  fdpic_loadmap_interp_regnum = 133,

  tbr_regnum = 135,

  brr_regnum = 136,

  dbar0_regnum = 137,

  dbar1_regnum = 138,

  dbar2_regnum = 139,

  dbar3_regnum = 140,

  scr0_regnum = 141,

  scr1_regnum = 142,

  scr2_regnum = 143,

  scr3_regnum = 144,

  lr_regnum = 145,

  lcr_regnum = 146,

  iacc0h_regnum = 147,

  iacc0l_regnum = 148,

  fsr0_regnum = 149,

  acc0_regnum = 150,

  acc7_regnum = 157,

  accg0123_regnum = 158,

  accg4567_regnum = 159,

  msr0_regnum = 160,

  msr1_regnum = 161,

  gner0_regnum = 162,

  gner1_regnum = 163,

  fner0_regnum = 164,

  fner1_regnum = 165,

  last_spr_regnum = 165,

  /* The total number of registers we know exist.  */

  frv_num_regs = last_spr_regnum + 1,

  /* Pseudo registers */

  first_pseudo_regnum = frv_num_regs,

  /* iacc0 - the 64-bit concatenation of iacc0h and iacc0l.  */

  iacc0_regnum = first_pseudo_regnum + 0,

  accg0_regnum = first_pseudo_regnum + 1,

  accg7_regnum = accg0_regnum + 7,

  last_pseudo_regnum = accg7_regnum,

  frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1,

};

/* Return the FR-V ABI associated with GDBARCH.  */

enum frv_abi frv_abi (struct gdbarch *gdbarch);

/* Fetch the interpreter and executable loadmap addresses (for shared

   library support) for the FDPIC ABI.  Return 0 if successful, -1 if

   not.  (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.)  */

int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,

                                 CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);

/* Given a function entry point, find and return the GOT address for the

   containing load module.  */

CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr);

/* Given a function entry point, find and return the canonical descriptor

   for that function, if one exists.  If no canonical descriptor could

   be found, return 0.  */

CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point);

/* Given an objfile, return the address of its link map.  This value is

   needed for TLS support.  */

CORE_ADDR frv_fetch_objfile_link_map (struct objfile *objfile);

struct target_so_ops;

extern struct target_so_ops frv_so_ops;