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/* Get a thread's general register set.

   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

#include "thread_dbP.h"

td_err_e

td_thr_getgregs (const td_thrhandle_t *th, prgregset_t gregs)

{

  struct _pthread_descr_struct pds;

  LOG ("td_thr_getgregs");

  if (th->th_unique == NULL)

    {

      /* No data yet.  */

      memset (gregs, '\0', sizeof (prgregset_t));

      return TD_OK;

    }

  /* We have to get the state and the PID for this thread.  */

  if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds,

                 sizeof (struct _pthread_descr_struct)) != PS_OK)

    return TD_ERR;

  /* If the thread already terminated we return all zeroes.  */

  if (pds.p_terminated)

    memset (gregs, '\0', sizeof (prgregset_t));

  /* Otherwise get the register content through the callback.  */

  else

    {

      pid_t pid = pds.p_pid ?: ps_getpid (th->th_ta_p->ph);

      if (ps_lgetregs (th->th_ta_p->ph, pid, gregs) != PS_OK)

        return TD_ERR;

    }

  return TD_OK;

}