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/* Target-dependent code for NetBSD/sh.

   Copyright (C) 2002, 2003, 2006, 2007, 2008, 2009, 2010

   Free Software Foundation, Inc.

   Contributed by Wasabi Systems, 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/>.  */

#include "defs.h"

#include "gdbcore.h"

#include "regset.h"

#include "value.h"

#include "osabi.h"

#include "gdb_string.h"

#include "sh-tdep.h"

#include "solib-svr4.h"

/* Convert a register number into an offset into a ptrace

   register structure.  */

static const struct sh_corefile_regmap regmap[] =

{

  {R0_REGNUM,      20 * 4},

  {R0_REGNUM + 1,  19 * 4},

  {R0_REGNUM + 2,  18 * 4},

  {R0_REGNUM + 3,  17 * 4},

  {R0_REGNUM + 4,  16 * 4},

  {R0_REGNUM + 5,  15 * 4},

  {R0_REGNUM + 6,  14 * 4},

  {R0_REGNUM + 7,  13 * 4},

  {R0_REGNUM + 8,  12 * 4},

  {R0_REGNUM + 9,  11 * 4},

  {R0_REGNUM + 10, 10 * 4},

  {R0_REGNUM + 11,  9 * 4},

  {R0_REGNUM + 12,  8 * 4},

  {R0_REGNUM + 13,  7 * 4},

  {R0_REGNUM + 14,  6 * 4},

  {R0_REGNUM + 15,  5 * 4},

  {PC_REGNUM,       0 * 4},

  {SR_REGNUM,       1 * 4},

  {PR_REGNUM,       2 * 4},

  {MACH_REGNUM,     3 * 4},

  {MACL_REGNUM,     4 * 4},

  {-1 /* Terminator.  */, 0}

};

static void

shnbsd_init_abi (struct gdbarch_info info,

                  struct gdbarch *gdbarch)

{

  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);

  tdep->core_gregmap = (struct sh_corefile_regmap *)regmap;

  set_solib_svr4_fetch_link_map_offsets

    (gdbarch, svr4_ilp32_fetch_link_map_offsets);

}

/* OpenBSD uses uses the traditional NetBSD core file format, even for

   ports that use ELF.  */

#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF

static enum gdb_osabi

shnbsd_core_osabi_sniffer (bfd *abfd)

{

  if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)

    return GDB_OSABI_NETBSD_CORE;

  return GDB_OSABI_UNKNOWN;

}

/* Provide a prototype to silence -Wmissing-prototypes.  */

extern initialize_file_ftype _initialize_shnbsd_tdep;

void

_initialize_shnbsd_tdep (void)

{

  /* BFD doesn't set a flavour for NetBSD style a.out core files.  */

  gdbarch_register_osabi_sniffer (bfd_arch_sh, bfd_target_unknown_flavour,

                                  shnbsd_core_osabi_sniffer);

  gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD_ELF,

                          shnbsd_init_abi);

  gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD_ELF,

                          shnbsd_init_abi);

}