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/* Native-dependent code for GNU/Linux on MIPS processors.
Copyright 2001, 2002, 2003 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 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 "defs.h"
#include "mips-tdep.h"
/* Pseudo registers can not be read. ptrace does not provide a way to
read (or set) MIPS_PS_REGNUM, and there's no point in reading or
setting MIPS_ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or
FCRIR via ptrace(). */
int
mips_linux_cannot_fetch_register (int regno)
{
if (regno > MIPS_ZERO_REGNUM && regno < MIPS_ZERO_REGNUM + 32)
return 0;
else if (regno >= mips_regnum (current_gdbarch)->fp0
&& regno <= mips_regnum (current_gdbarch)->fp0 + 32)
return 0;
else if (regno == mips_regnum (current_gdbarch)->lo
|| regno == mips_regnum (current_gdbarch)->hi
|| regno == mips_regnum (current_gdbarch)->badvaddr
|| regno == mips_regnum (current_gdbarch)->cause
|| regno == mips_regnum (current_gdbarch)->pc
|| regno == mips_regnum (current_gdbarch)->fp_control_status
|| regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
return 0;
else
return 1;
}
int
mips_linux_cannot_store_register (int regno)
{
if (regno > MIPS_ZERO_REGNUM && regno < MIPS_ZERO_REGNUM + 32)
return 0;
else if (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 32)
return 0;
else if (regno == mips_regnum (current_gdbarch)->lo
|| regno == mips_regnum (current_gdbarch)->hi
|| regno == mips_regnum (current_gdbarch)->pc
|| regno == mips_regnum (current_gdbarch)->fp_control_status)
return 0;
else
return 1;
}
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