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/* 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);
}
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