| /* Target-dependent code for DJGPP/i386. |
| |
| Copyright (C) 1988-2021 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) |
| { |
| struct gdbarch_tdep *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); |
| } |