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/* Native-dependent code for SuperH running NetBSD, for GDB.
Copyright 2002 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include "defs.h"
#include "inferior.h"
#include "shnbsd-tdep.h"
/* Determine if PT_GETREGS fetches this register. */
#define GETREGS_SUPPLIES(regno) \
(((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
|| (regno) == PC_REGNUM || (regno) == PR_REGNUM \
|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
|| (regno) == SR_REGNUM)
void
fetch_inferior_registers (int regno)
{
if (regno == -1 || GETREGS_SUPPLIES (regno))
{
struct reg inferior_registers;
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
perror_with_name ("Couldn't get registers");
shnbsd_supply_reg ((char *) &inferior_registers, regno);
if (regno != -1)
return;
}
}
void
store_inferior_registers (int regno)
{
if (regno == -1 || GETREGS_SUPPLIES (regno))
{
struct reg inferior_registers;
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
perror_with_name ("Couldn't get registers");
shnbsd_fill_reg ((char *) &inferior_registers, regno);
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
perror_with_name ("Couldn't set registers");
if (regno != -1)
return;
}
}
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