From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Kettenis <kettenis@wins.uva.nl>
To: gdb@sources.redhat.com, drow@mvista.com
Subject: Fixing Linux/SPARC
Date: Wed, 17 Oct 2001 07:08:00 -0000
Message-id: <200110171407.f9HE7qL00752@delius.kettenis.local>
X-SW-Source: 2001-10/msg00172.html

Hi Dan & other interested folks,

Something like the code below (completely untested, probably doesn't
even compile) is needed to fix Linux/SPARC.

Mark


/* Native-dependent code for Linux/SPARC.
   Copyright 2001 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 "regcache.h"
   
#include <sys/procfs.h>

/* Prototypes for supply_gregset etc.  */
#include "gregset.h"

void
supply_gregset (elf_gregset_t *gregsetp)
{
  elf_greg_t *regp = (elf_greg_t *) gregsetp;
  int i;

  for (i = G0_REGNUM; i <= I7_REGNUM; i++)
    supply_register (i, (char *) (regp + (i - G0_REGNUM)));

  supply_register (PS_REGNUM, (char *) (regp + 32));

  supply_register (PC_REGNUM, (char *) (regp + 33));
  supply_register (NPC_REGNUM, (char *) (regp + 34));
  supply_register (Y_REGNUM, (char *) (regp + 35));

  supply_register (WIM_REGNUM, (char *) (regp + 36));
  supply_register (TBR_REGNUM, (char *) (regp + 37));

  /* Fill inaccessible registers with zero.  */
  supply_register (CPS_REGNUM, NULL);
}

void
fill_gregset (elf_gregset_t *gregsetp, int regno)
{
  elf_greg_t *regp = (elf_greg_t *) gregsetp;
  int i;

  for (i = G0_REGNUM; i <= I7_REGNUM; i++)
    if (regno == -1 || regno == i)
      read_register_gen (i, (char *) (regp + (i - G0_REGNUM)));

  if (regno == -1 || regno == PS_REGNUM)
    read_register_gen (PS_REGNUM, (char *) (regp + 32));

  if (regno == -1 || regno == PC_REGNUM)
    read_register_gen (PC_REGNUM, (char *) (regp + 33));
  if (regno == -1 || regno == NPC_REGNUM)
    read_register_gen (NPC_REGNUM, (char *) (regp + 34));
  if (regno == -1 || regno == Y_REGNUM)
    read_register_gen (Y_REGNUM, (char *) (regp + 35));

  if (regno == -1 || regno == WIM_REGNUM)
    read_register_gen (WIM_REGNUM, (char *) (regp + 36));
  if (regno == -1 || regno == TBR_REGNUM)
    read_register_gen (TBR_REGNUM, (char *) (regp + 37));
}

void
supply_fpregset (elf_fpregset_t *fpregsetp)
{
  int i;

  for (i = FPO_REGNUM; i < FP0_REGNUM + 32; i++)
    supply_register (i, (char *) &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);

  supply_register (FPS_REGNUM, (char *) &fpregsetp->pr_fsr);
}

void
fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
{
  int i;

  for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
    if (regno == -1 || regno == i)
      read_register_gen (i, (char *) &fregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);

  if (regno == -1 || regno == FPS_REGNUM)
    read_register_gen (FPS_REGNUM, (char *) &fpregsetp->pr_fsr);
}