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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [mipsnbsd-nat.c] - Blame information for rev 842

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Line No. Rev Author Line
1 227 jeremybenn
/* Native-dependent code for MIPS systems running NetBSD.
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   Copyright (C) 2000, 2001, 2002, 2004, 2007, 2008, 2009, 2010
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   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 "mips-tdep.h"
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#include "mipsnbsd-tdep.h"
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#include "inf-ptrace.h"
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/* Determine if PT_GETREGS fetches this register.  */
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static int
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getregs_supplies (struct gdbarch *gdbarch, int regno)
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{
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  return ((regno) >= MIPS_ZERO_REGNUM
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          && (regno) <= gdbarch_pc_regnum (gdbarch));
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}
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static void
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mipsnbsd_fetch_inferior_registers (struct target_ops *ops,
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                                   struct regcache *regcache, int regno)
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{
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  struct gdbarch *gdbarch = get_regcache_arch (regcache);
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  if (regno == -1 || getregs_supplies (gdbarch, regno))
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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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      mipsnbsd_supply_reg (regcache, (char *) &regs, regno);
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      if (regno != -1)
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        return;
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    }
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  if (regno == -1 || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
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    {
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      struct fpreg fpregs;
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      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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        perror_with_name (_("Couldn't get floating point status"));
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      mipsnbsd_supply_fpreg (regcache, (char *) &fpregs, regno);
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    }
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}
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static void
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mipsnbsd_store_inferior_registers (struct target_ops *ops,
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                                   struct regcache *regcache, int regno)
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{
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  struct gdbarch *gdbarch = get_regcache_arch (regcache);
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  if (regno == -1 || getregs_supplies (gdbarch, regno))
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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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      mipsnbsd_fill_reg (regcache, (char *) &regs, regno);
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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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      if (regno != -1)
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        return;
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    }
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  if (regno == -1 || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
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    {
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      struct fpreg fpregs;
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      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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        perror_with_name (_("Couldn't get floating point status"));
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      mipsnbsd_fill_fpreg (regcache, (char *) &fpregs, regno);
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      if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
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                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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        perror_with_name (_("Couldn't write floating point status"));
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    }
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}
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/* Provide a prototype to silence -Wmissing-prototypes.  */
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void _initialize_mipsnbsd_nat (void);
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void
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_initialize_mipsnbsd_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 = mipsnbsd_fetch_inferior_registers;
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  t->to_store_registers = mipsnbsd_store_inferior_registers;
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  add_target (t);
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}

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