xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/amd64-dicos-tdep.c (revision 8b657b0747480f8989760d71343d6dd33f8d4cf9)
1 /* Target-dependent code for DICOS running on x86-64's, for GDB.
2 
3    Copyright (C) 2009-2023 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 "amd64-tdep.h"
23 #include "gdbsupport/x86-xstate.h"
24 #include "dicos-tdep.h"
25 
26 static void
27 amd64_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
28 {
29   amd64_init_abi (info, gdbarch,
30 		  amd64_target_description (X86_XSTATE_SSE_MASK, true));
31 
32   dicos_init_abi (gdbarch);
33 }
34 
35 static enum gdb_osabi
36 amd64_dicos_osabi_sniffer (bfd *abfd)
37 {
38   const char *target_name = bfd_get_target (abfd);
39 
40   /* On amd64-DICOS, the Load Module's "header" section is 72
41      bytes.  */
42   if (strcmp (target_name, "elf64-x86-64") == 0
43       && dicos_load_module_p (abfd, 72))
44     return GDB_OSABI_DICOS;
45 
46   return GDB_OSABI_UNKNOWN;
47 }
48 
49 void _initialize_amd64_dicos_tdep ();
50 void
51 _initialize_amd64_dicos_tdep ()
52 {
53   gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
54 				  amd64_dicos_osabi_sniffer);
55 
56   gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
57 			  GDB_OSABI_DICOS,
58 			  amd64_dicos_init_abi);
59 }
60