xref: /openbsd-src/gnu/usr.bin/binutils/gdb/vaxnbsd-tdep.c (revision c1d2918f9296672bc61faf1e4ecf6e33242d4936)
1 /* Target-dependent code for NetBSD/vax.
2 
3    Copyright 2004 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 2 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, write to the Free Software
19    Foundation, Inc., 59 Temple Place - Suite 330,
20    Boston, MA 02111-1307, USA.  */
21 
22 #include "defs.h"
23 #include "arch-utils.h"
24 #include "osabi.h"
25 
26 #include "vax-tdep.h"
27 #include "solib-svr4.h"
28 
29 #include "gdb_string.h"
30 
31 /* Support for shared libraries.  */
32 
33 /* Return non-zero if we are in a shared library trampoline code stub.  */
34 
35 int
vaxnbsd_aout_in_solib_call_trampoline(CORE_ADDR pc,char * name)36 vaxnbsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
37 {
38   return (name && !strcmp (name, "_DYNAMIC"));
39 }
40 
41 
42 /* NetBSD a.out.  */
43 
44 static void
vaxnbsd_aout_init_abi(struct gdbarch_info info,struct gdbarch * gdbarch)45 vaxnbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
46 {
47   /* Assume SunOS-style shared libraries.  */
48   set_gdbarch_in_solib_call_trampoline
49     (gdbarch, vaxnbsd_aout_in_solib_call_trampoline);
50 }
51 
52 /* NetBSD ELF.  */
53 
54 static void
vaxnbsd_elf_init_abi(struct gdbarch_info info,struct gdbarch * gdbarch)55 vaxnbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
56 {
57   /* NetBSD ELF uses SVR4-style shared libraries.  */
58   set_gdbarch_in_solib_call_trampoline
59     (gdbarch, generic_in_solib_call_trampoline);
60   set_solib_svr4_fetch_link_map_offsets
61     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
62 }
63 
64 
65 /* Provide a prototype to silence -Wmissing-prototypes.  */
66 void _initialize_vaxnbsd_tdep (void);
67 
68 void
_initialize_vaxnbsd_tdep(void)69 _initialize_vaxnbsd_tdep (void)
70 {
71   gdbarch_register_osabi (bfd_arch_vax, 0, GDB_OSABI_NETBSD_AOUT,
72 			  vaxnbsd_aout_init_abi);
73   gdbarch_register_osabi (bfd_arch_vax, 0, GDB_OSABI_NETBSD_ELF,
74 			  vaxnbsd_elf_init_abi);
75   gdbarch_register_osabi (bfd_arch_vax, 0, GDB_OSABI_OPENBSD_ELF,
76 			  vaxnbsd_elf_init_abi);
77 }
78