1: /* Get a thread's floating-point register set.
    2:    Copyright (C) 1999, 2001, 2002, 2003, 2007 Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4:    Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
    5: 
    6:    The GNU C Library is free software; you can redistribute it and/or
    7:    modify it under the terms of the GNU Lesser General Public
    8:    License as published by the Free Software Foundation; either
    9:    version 2.1 of the License, or (at your option) any later version.
   10: 
   11:    The GNU C Library is distributed in the hope that it will be useful,
   12:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   13:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:    Lesser General Public License for more details.
   15: 
   16:    You should have received a copy of the GNU Lesser General Public
   17:    License along with the GNU C Library; if not, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include "thread_dbP.h"
   22: 
   23: 
   24: td_err_e
   25: td_thr_getfpregs (const td_thrhandle_t *th, prfpregset_t *regset)
   26: {
   27:   psaddr_t cancelhandling, tid;
   28:   td_err_e err;
   29: 
   30:   LOG ("td_thr_getfpregs");
   31: 
   32:   if (th->th_unique == 0)
   33:     /* Special case for the main thread before initialization.  */
   34:     return ps_lgetfpregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
   35:                           regset) != PS_OK ? TD_ERR : TD_OK;
   36: 
   37:   /* We have to get the state and the PID for this thread.  */
   38:   err = DB_GET_FIELD (cancelhandling, th->th_ta_p, th->th_unique, pthread,
   39:                       cancelhandling, 0);
   40:   if (err != TD_OK)
   41:     return err;
   42: 
   43:   /* If the thread already terminated we return all zeroes.  */
   44:   if (((int) (uintptr_t) cancelhandling) & TERMINATED_BITMASK)
   45:     memset (regset, '\0', sizeof (*regset));
   46:   /* Otherwise get the register content through the callback.  */
   47:   else
   48:     {
   49:       err = DB_GET_FIELD (tid, th->th_ta_p, th->th_unique, pthread, tid, 0);
   50:       if (err != TD_OK)
   51:         return err;
   52: 
   53:       if (ps_lgetfpregs (th->th_ta_p->ph, (uintptr_t) tid, regset) != PS_OK)
   54:         return TD_ERR;
   55:     }
   56: 
   57:   return TD_OK;
   58: }