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/* Common target-dependent code for NetBSD systems.

   Copyright 2002 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 2 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, write to the Free Software

   Foundation, Inc., 59 Temple Place - Suite 330,

   Boston, MA 02111-1307, USA.  */

#include "defs.h"

#include "gdb_string.h"

#include "solib-svr4.h"

/* Fetch (and possibly build) an appropriate link_map_offsets

   structure for NetBSD targets using the struct offsets defined

   in <link.h> (but without actual reference to that file).

   This makes it possible to access NetBSD shared libraries from a

   GDB that was not built on the same platform (for cross debugging).

   We provide versions for ILP32 and LP64 NetBSD targets here.  */

struct link_map_offsets *

nbsd_ilp32_solib_svr4_fetch_link_map_offsets (void)

{

  static struct link_map_offsets lmo;

  static struct link_map_offsets *lmp = NULL;

  if (lmp == NULL)

    {

      lmp = &lmo;

      lmo.r_debug_size = 16;

      lmo.r_map_offset = 4;

      lmo.r_map_size   = 4;

      lmo.link_map_size = 20;

      lmo.l_addr_offset = 0;

      lmo.l_addr_size   = 4;

      lmo.l_name_offset = 4;

      lmo.l_name_size   = 4;

      lmo.l_next_offset = 12;

      lmo.l_next_size   = 4;

      lmo.l_prev_offset = 16;

      lmo.l_prev_size   = 4;

    }

  return lmp;

}

struct link_map_offsets *

nbsd_lp64_solib_svr4_fetch_link_map_offsets (void)

{

  static struct link_map_offsets lmo;

  static struct link_map_offsets *lmp = NULL;

  if (lmp == NULL)

    {

      lmp = &lmo;

      lmo.r_debug_size = 32;

      lmo.r_map_offset = 8;

      lmo.r_map_size   = 8;

      lmo.link_map_size = 40;

      lmo.l_addr_offset = 0;

      lmo.l_addr_size   = 8;

      lmo.l_name_offset = 8;

      lmo.l_name_size   = 8;

      lmo.l_next_offset = 24;

      lmo.l_next_size   = 8;

      lmo.l_prev_offset = 32;

      lmo.l_prev_size   = 8;

    }

  return lmp;

}

int

nbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name)

{

  /* Check for libc-provided signal trampoline.  All such trampolines

     have function names which begin with "__sigtramp".  */

  return (func_name != NULL

          && strncmp (func_name, "__sigtramp", 10) == 0);

}