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- /* Target-dependent code for DJGPP/i386.
- Copyright (C) 1988-2022 Free Software Foundation, Inc.
- This file is part of GDB.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #include "defs.h"
- #include "i386-tdep.h"
- #include "gdbsupport/x86-xstate.h"
- #include "target-descriptions.h"
- #include "osabi.h"
- static void
- i386_go32_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
- {
- i386_gdbarch_tdep *tdep = (i386_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- /* DJGPP doesn't have any special frames for signal handlers. */
- tdep->sigtramp_p = NULL;
- tdep->jb_pc_offset = 36;
- /* DJGPP does not support the SSE registers. */
- if (!tdesc_has_registers (info.target_desc))
- tdep->tdesc = i386_target_description (X86_XSTATE_X87_MASK, false);
- /* Native compiler is GCC, which uses the SVR4 register numbering
- even in COFF and STABS. See the comment in i386_gdbarch_init,
- before the calls to set_gdbarch_stab_reg_to_regnum and
- set_gdbarch_sdb_reg_to_regnum. */
- set_gdbarch_stab_reg_to_regnum (gdbarch, i386_svr4_reg_to_regnum);
- set_gdbarch_sdb_reg_to_regnum (gdbarch, i386_svr4_reg_to_regnum);
- set_gdbarch_has_dos_based_file_system (gdbarch, 1);
- set_gdbarch_wchar_bit (gdbarch, 16);
- set_gdbarch_wchar_signed (gdbarch, 0);
- }
- static enum gdb_osabi
- i386_coff_osabi_sniffer (bfd *abfd)
- {
- if (strcmp (bfd_get_target (abfd), "coff-go32-exe") == 0
- || strcmp (bfd_get_target (abfd), "coff-go32") == 0)
- return GDB_OSABI_GO32;
- return GDB_OSABI_UNKNOWN;
- }
- void _initialize_i386_go32_tdep ();
- void
- _initialize_i386_go32_tdep ()
- {
- gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
- i386_coff_osabi_sniffer);
- gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_GO32,
- i386_go32_init_abi);
- }
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