1/* Target-dependent code for Cygwin running on i386's, for GDB.
2
3   Copyright 2003 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 "osabi.h"
24
25#include "gdb_string.h"
26
27#include "i386-tdep.h"
28
29static CORE_ADDR
30i386_cygwin_skip_trampoline_code (CORE_ADDR pc)
31{
32  return i386_pe_skip_trampoline_code (pc, NULL);
33}
34
35static int
36i386_cygwin_in_solib_call_trampoline (CORE_ADDR pc, char *name)
37{
38  return (i386_pe_skip_trampoline_code (pc, name) != 0);
39}
40
41static void
42i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
43{
44  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
45
46  set_gdbarch_in_solib_call_trampoline (gdbarch,
47                                        i386_cygwin_in_solib_call_trampoline);
48  set_gdbarch_skip_trampoline_code (gdbarch, i386_cygwin_skip_trampoline_code);
49
50  tdep->struct_return = reg_struct_return;
51}
52
53static enum gdb_osabi
54i386_cygwin_osabi_sniffer (bfd * abfd)
55{
56  char *target_name = bfd_get_target (abfd);
57
58  /* Interix also uses pei-i386.
59     We need a way to distinguish between the two. */
60  if (strcmp (target_name, "pei-i386") == 0)
61    return GDB_OSABI_CYGWIN;
62
63  return GDB_OSABI_UNKNOWN;
64}
65
66/* Provide a prototype to silence -Wmissing-prototypes.  */
67void _initialize_i386_cygwin_tdep (void);
68
69void
70_initialize_i386_cygwin_tdep (void)
71{
72  gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
73                                  i386_cygwin_osabi_sniffer);
74
75  gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_CYGWIN,
76                          i386_cygwin_init_abi);
77}
78