126 lines
3.6 KiB
C
126 lines
3.6 KiB
C
/* Native-dependent code for MIPS systems running NetBSD.
|
||
|
||
Copyright (C) 2000-2013 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 "inferior.h"
|
||
#include "regcache.h"
|
||
#include "target.h"
|
||
|
||
#include <sys/types.h>
|
||
#include <sys/ptrace.h>
|
||
#include <machine/reg.h>
|
||
|
||
#include "mips-tdep.h"
|
||
#include "mipsnbsd-tdep.h"
|
||
#include "inf-ptrace.h"
|
||
|
||
/* Determine if PT_GETREGS fetches this register. */
|
||
static int
|
||
getregs_supplies (struct gdbarch *gdbarch, int regno)
|
||
{
|
||
return ((regno) >= MIPS_ZERO_REGNUM
|
||
&& (regno) <= gdbarch_pc_regnum (gdbarch));
|
||
}
|
||
|
||
static void
|
||
mipsnbsd_fetch_inferior_registers (struct target_ops *ops,
|
||
struct regcache *regcache, int regno)
|
||
{
|
||
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
||
if (regno == -1 || getregs_supplies (gdbarch, regno))
|
||
{
|
||
struct reg regs;
|
||
|
||
if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't get registers"));
|
||
|
||
mipsnbsd_supply_reg (regcache, (char *) ®s, regno);
|
||
if (regno != -1)
|
||
return;
|
||
}
|
||
|
||
if (regno == -1
|
||
|| regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
|
||
{
|
||
struct fpreg fpregs;
|
||
|
||
if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
|
||
perror_with_name (_("Couldn't get floating point status"));
|
||
|
||
mipsnbsd_supply_fpreg (regcache, (char *) &fpregs, regno);
|
||
}
|
||
}
|
||
|
||
static void
|
||
mipsnbsd_store_inferior_registers (struct target_ops *ops,
|
||
struct regcache *regcache, int regno)
|
||
{
|
||
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
||
if (regno == -1 || getregs_supplies (gdbarch, regno))
|
||
{
|
||
struct reg regs;
|
||
|
||
if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't get registers"));
|
||
|
||
mipsnbsd_fill_reg (regcache, (char *) ®s, regno);
|
||
|
||
if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't write registers"));
|
||
|
||
if (regno != -1)
|
||
return;
|
||
}
|
||
|
||
if (regno == -1
|
||
|| regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
|
||
{
|
||
struct fpreg fpregs;
|
||
|
||
if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
|
||
perror_with_name (_("Couldn't get floating point status"));
|
||
|
||
mipsnbsd_fill_fpreg (regcache, (char *) &fpregs, regno);
|
||
|
||
if (ptrace (PT_SETFPREGS, ptid_get_pid (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
|
||
perror_with_name (_("Couldn't write floating point status"));
|
||
}
|
||
}
|
||
|
||
|
||
/* Provide a prototype to silence -Wmissing-prototypes. */
|
||
void _initialize_mipsnbsd_nat (void);
|
||
|
||
void
|
||
_initialize_mipsnbsd_nat (void)
|
||
{
|
||
struct target_ops *t;
|
||
|
||
t = inf_ptrace_target ();
|
||
t->to_fetch_registers = mipsnbsd_fetch_inferior_registers;
|
||
t->to_store_registers = mipsnbsd_store_inferior_registers;
|
||
add_target (t);
|
||
}
|