| /* 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); |
| } |