| /* Target-dependent code for DICOS running on i386's, for GDB. |
| |
| Copyright (C) 2008, 2009, 2010, 2011 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 "osabi.h" |
| #include "gdb_string.h" |
| #include "dicos-tdep.h" |
| |
| static CORE_ADDR |
| i386_dicos_push_dummy_code (struct gdbarch *gdbarch, |
| CORE_ADDR sp, CORE_ADDR funaddr, |
| struct value **args, int nargs, |
| struct type *value_type, |
| CORE_ADDR *real_pc, CORE_ADDR *bp_addr, |
| struct regcache *regcache) |
| { |
| int bplen; |
| CORE_ADDR bppc = sp; |
| |
| gdbarch_breakpoint_from_pc (gdbarch, &bppc, &bplen); |
| *bp_addr = sp - bplen; |
| *real_pc = funaddr; |
| |
| return *bp_addr; |
| } |
| |
| static void |
| i386_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| { |
| struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
| |
| dicos_init_abi (gdbarch); |
| |
| set_gdbarch_push_dummy_code (gdbarch, i386_dicos_push_dummy_code); |
| } |
| |
| static enum gdb_osabi |
| i386_dicos_osabi_sniffer (bfd *abfd) |
| { |
| char *target_name = bfd_get_target (abfd); |
| |
| /* On x86-DICOS, the Load Module's "header" section is 36 bytes. */ |
| if (strcmp (target_name, "elf32-i386") == 0 |
| && dicos_load_module_p (abfd, 36)) |
| return GDB_OSABI_DICOS; |
| |
| return GDB_OSABI_UNKNOWN; |
| } |
| |
| /* Provide a prototype to silence -Wmissing-prototypes. */ |
| void _initialize_i386_dicos_tdep (void); |
| |
| void |
| _initialize_i386_dicos_tdep (void) |
| { |
| gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, |
| i386_dicos_osabi_sniffer); |
| |
| gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_DICOS, |
| i386_dicos_init_abi); |
| } |