gdb/amd64-fuchsia-tdep.c

/* Target-dependent code for Fuchsia x86-64.

   Copyright (C) 2001-2016 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 "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "regcache.h"
#include "osabi.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "reggroups.h"
#include "regset.h"
#include "parser-defs.h"
#include "user-regs.h"
#include "amd64-fuchsia-tdep.h"
#include "fuchsia-tdep.h"
#include "amd64-tdep.h"

static int
amd64_fuchsia_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
				 struct reggroup *group)
{ 
  return i386_register_reggroup_p (gdbarch, regnum, group);
}

static void
amd64_fuchsia_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
  const struct target_desc *tdesc = info.target_desc;
  struct tdesc_arch_data *tdesc_data
    = (struct tdesc_arch_data *) info.tdep_info;

  gdb_assert (tdesc_data);

  amd64_init_abi (info, gdbarch);

  fuchsia_init_abi (info, gdbarch);

  tdep->register_reggroup_p = amd64_fuchsia_register_reggroup_p;

  /* Displaced stepping.  */
  set_gdbarch_displaced_step_copy_insn (gdbarch,
					amd64_displaced_step_copy_insn);
  set_gdbarch_displaced_step_fixup (gdbarch, amd64_displaced_step_fixup);
  set_gdbarch_displaced_step_free_closure (gdbarch,
					   simple_displaced_step_free_closure);
  set_gdbarch_displaced_step_location (gdbarch,
				       fuchsia_displaced_step_location);

  // TODO:
  // - set_gdbarch_handle_segmentation_fault
  //   to display extra info for MPX boundary violations.
}

/* Provide a prototype to silence -Wmissing-prototypes.  */
extern void _initialize_amd64_fuchsia_tdep (void);

void
_initialize_amd64_fuchsia_tdep (void)
{
  gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
				  fuchsia_osabi_sniffer);
  gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
			  GDB_OSABI_FUCHSIA, amd64_fuchsia_init_abi);
}