1 /* Target-dependent code for DJGPP/i386.
3 Copyright (C) 1988-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
21 #include "i386-tdep.h"
22 #include "x86-xstate.h"
23 #include "target-descriptions.h"
27 i386_go32_init_abi (struct gdbarch_info info
, struct gdbarch
*gdbarch
)
29 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
31 /* DJGPP doesn't have any special frames for signal handlers. */
32 tdep
->sigtramp_p
= NULL
;
34 tdep
->jb_pc_offset
= 36;
36 /* DJGPP does not support the SSE registers. */
37 if (!tdesc_has_registers (info
.target_desc
))
38 tdep
->tdesc
= i386_target_description (X86_XSTATE_X87_MASK
);
40 /* Native compiler is GCC, which uses the SVR4 register numbering
41 even in COFF and STABS. See the comment in i386_gdbarch_init,
42 before the calls to set_gdbarch_stab_reg_to_regnum and
43 set_gdbarch_sdb_reg_to_regnum. */
44 set_gdbarch_stab_reg_to_regnum (gdbarch
, i386_svr4_reg_to_regnum
);
45 set_gdbarch_sdb_reg_to_regnum (gdbarch
, i386_svr4_reg_to_regnum
);
47 set_gdbarch_has_dos_based_file_system (gdbarch
, 1);
49 set_gdbarch_wchar_bit (gdbarch
, 16);
50 set_gdbarch_wchar_signed (gdbarch
, 0);
55 i386_coff_osabi_sniffer (bfd
*abfd
)
57 if (strcmp (bfd_get_target (abfd
), "coff-go32-exe") == 0
58 || strcmp (bfd_get_target (abfd
), "coff-go32") == 0)
59 return GDB_OSABI_GO32
;
61 return GDB_OSABI_UNKNOWN
;
66 _initialize_i386_go32_tdep ()
68 gdbarch_register_osabi_sniffer (bfd_arch_i386
, bfd_target_coff_flavour
,
69 i386_coff_osabi_sniffer
);
71 gdbarch_register_osabi (bfd_arch_i386
, 0, GDB_OSABI_GO32
,
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