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[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [gdb/] [m88kbsd-nat.c] - Blame information for rev 25

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1 25 jlechner
/* Native-dependent code for Motorola 88000 BSD's.
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   Copyright (C) 2004, 2007, 2008 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
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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#include "defs.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "target.h"
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include "m88k-tdep.h"
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#include "inf-ptrace.h"
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/* Supply the general-purpose registers stored in GREGS to REGCACHE.  */
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static void
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m88kbsd_supply_gregset (struct regcache *regcache, const void *gregs)
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{
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  const char *regs = gregs;
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  int regnum;
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  for (regnum = 0; regnum < M88K_NUM_REGS; regnum++)
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    regcache_raw_supply (regcache, regnum, regs + regnum * 4);
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}
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/* Collect the general-purpose registers from REGCACHE and store them
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   in GREGS.  */
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static void
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m88kbsd_collect_gregset (const struct regcache *regcache,
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                         void *gregs, int regnum)
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{
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  char *regs = gregs;
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  int i;
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  for (i = 0; i < M88K_NUM_REGS; i++)
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    {
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      if (regnum == -1 || regnum == i)
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        regcache_raw_collect (regcache, i, regs + i * 4);
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    }
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}
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/* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
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   for all registers.  */
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static void
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m88kbsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
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{
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  struct reg regs;
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  if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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              (PTRACE_TYPE_ARG3) &regs, 0) == -1)
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    perror_with_name (_("Couldn't get registers"));
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  m88kbsd_supply_gregset (regcache, &regs);
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}
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/* Store register REGNUM back into the inferior.  If REGNUM is -1, do
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   this for all registers.  */
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static void
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m88kbsd_store_inferior_registers (struct regcache *regcache, int regnum)
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{
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  struct reg regs;
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  if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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              (PTRACE_TYPE_ARG3) &regs, 0) == -1)
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    perror_with_name (_("Couldn't get registers"));
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  m88kbsd_collect_gregset (regcache, &regs, regnum);
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  if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
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              (PTRACE_TYPE_ARG3) &regs, 0) == -1)
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    perror_with_name (_("Couldn't write registers"));
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}
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/* Provide a prototype to silence -Wmissing-prototypes.  */
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void _initialize_m88kbsd_nat (void);
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void
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_initialize_m88kbsd_nat (void)
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{
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  struct target_ops *t;
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  t = inf_ptrace_target ();
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  t->to_fetch_registers = m88kbsd_fetch_inferior_registers;
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  t->to_store_registers = m88kbsd_store_inferior_registers;
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  add_target (t);
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}

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