binutils-gdb/gdb/m68knbsd-nat.c

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/* Native-dependent code for Motorola m68k's running NetBSD, for GDB.
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Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
Free Software Foundation, Inc.
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This file is part of GDB.
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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 2 of the License, or
(at your option) any later version.
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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.
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You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include "inferior.h"
#include "gdbcore.h"
#include "regcache.h"
void
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fetch_inferior_registers (int regno)
{
struct reg inferior_registers;
struct fpreg inferior_fp_registers;
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ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_registers, 0);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (0)], &inferior_registers,
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sizeof (inferior_registers));
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ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
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sizeof (inferior_fp_registers));
deprecated_registers_fetched ();
}
void
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store_inferior_registers (int regno)
{
struct reg inferior_registers;
struct fpreg inferior_fp_registers;
memcpy (&inferior_registers, &deprecated_registers[DEPRECATED_REGISTER_BYTE (0)],
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sizeof (inferior_registers));
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ptrace (PT_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_registers, 0);
memcpy (&inferior_fp_registers, &deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],
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sizeof (inferior_fp_registers));
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ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
}
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struct md_core
{
struct reg intreg;
struct fpreg freg;
};
static void
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fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
{
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struct md_core *core_reg = (struct md_core *) core_reg_sect;
/* Integer registers */
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (0)],
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&core_reg->intreg, sizeof (struct reg));
/* Floating point registers */
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],
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&core_reg->freg, sizeof (struct fpreg));
}
/* Register that we are able to handle m68knbsd core file formats.
FIXME: is this really bfd_target_unknown_flavour? */
static struct core_fns m68knbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
void
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_initialize_m68knbsd_nat (void)
{
add_core_fns (&m68knbsd_core_fns);
}