104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/* Native-dependent code for NetBSD/sh.
|
|
|
|
Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011
|
|
Free Software Foundation, Inc.
|
|
|
|
Contributed by Wasabi Systems, 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 <sys/types.h>
|
|
#include <sys/ptrace.h>
|
|
#include <machine/reg.h>
|
|
|
|
#include "sh-tdep.h"
|
|
#include "inf-ptrace.h"
|
|
#include "regcache.h"
|
|
|
|
|
|
/* Determine if PT_GETREGS fetches this register. */
|
|
#define GETREGS_SUPPLIES(gdbarch, regno) \
|
|
(((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
|
|
|| (regno) == gdbarch_pc_regnum (gdbarch) || (regno) == PR_REGNUM \
|
|
|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
|
|
|| (regno) == SR_REGNUM)
|
|
|
|
/* Sizeof `struct reg' in <machine/reg.h>. */
|
|
#define SHNBSD_SIZEOF_GREGS (21 * 4)
|
|
|
|
static void
|
|
shnbsd_fetch_inferior_registers (struct target_ops *ops,
|
|
struct regcache *regcache, int regno)
|
|
{
|
|
if (regno == -1 || GETREGS_SUPPLIES (get_regcache_arch (regcache), regno))
|
|
{
|
|
struct reg inferior_registers;
|
|
|
|
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
|
(PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
|
|
perror_with_name (_("Couldn't get registers"));
|
|
|
|
sh_corefile_supply_regset (&sh_corefile_gregset, regcache, regno,
|
|
(char *) &inferior_registers,
|
|
SHNBSD_SIZEOF_GREGS);
|
|
|
|
if (regno != -1)
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
shnbsd_store_inferior_registers (struct target_ops *ops,
|
|
struct regcache *regcache, int regno)
|
|
{
|
|
if (regno == -1 || GETREGS_SUPPLIES (get_regcache_arch (regcache), regno))
|
|
{
|
|
struct reg inferior_registers;
|
|
|
|
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
|
(PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
|
|
perror_with_name (_("Couldn't get registers"));
|
|
|
|
sh_corefile_collect_regset (&sh_corefile_gregset, regcache, regno,
|
|
(char *) &inferior_registers,
|
|
SHNBSD_SIZEOF_GREGS);
|
|
|
|
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
|
|
(PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
|
|
perror_with_name (_("Couldn't set registers"));
|
|
|
|
if (regno != -1)
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
|
void _initialize_shnbsd_nat (void);
|
|
|
|
void
|
|
_initialize_shnbsd_nat (void)
|
|
{
|
|
struct target_ops *t;
|
|
|
|
t = inf_ptrace_target ();
|
|
t->to_fetch_registers = shnbsd_fetch_inferior_registers;
|
|
t->to_store_registers = shnbsd_store_inferior_registers;
|
|
add_target (t);
|
|
}
|