/* Target-dependent code for DICOS running on i386's, for GDB. Copyright (C) 2008, 2009, 2010 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); }