xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/i386-dicos-tdep.c (revision 9616dacfef448e70e3fbbd865bddf60d54b656c5)
1 /* Target-dependent code for DICOS running on i386's, for GDB.
2 
3    Copyright (C) 2008-2015 Free Software Foundation, Inc.
4 
5    This file is part of GDB.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19 
20 #include "defs.h"
21 #include "osabi.h"
22 #include "dicos-tdep.h"
23 
24 static void
25 i386_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
26 {
27   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
28 
29   dicos_init_abi (gdbarch);
30 }
31 
32 static enum gdb_osabi
33 i386_dicos_osabi_sniffer (bfd *abfd)
34 {
35   char *target_name = bfd_get_target (abfd);
36 
37   /* On x86-DICOS, the Load Module's "header" section is 36 bytes.  */
38   if (strcmp (target_name, "elf32-i386") == 0
39       && dicos_load_module_p (abfd, 36))
40     return GDB_OSABI_DICOS;
41 
42   return GDB_OSABI_UNKNOWN;
43 }
44 
45 /* Provide a prototype to silence -Wmissing-prototypes.  */
46 void _initialize_i386_dicos_tdep (void);
47 
48 void
49 _initialize_i386_dicos_tdep (void)
50 {
51   gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
52                                   i386_dicos_osabi_sniffer);
53 
54   gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_DICOS,
55                           i386_dicos_init_abi);
56 }
57