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/* Common target-dependent code for NetBSD systems.
Copyright (C) 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, 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);
}
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