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/* Get a thread's floating-point register set.
Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.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, see
<https://www.gnu.org/licenses/>. */
#include "thread_dbP.h"
td_err_e
td_thr_getfpregs (const td_thrhandle_t *th, prfpregset_t *regset)
{
psaddr_t cancelhandling, tid;
td_err_e err;
LOG ("td_thr_getfpregs");
if (th->th_unique == 0)
/* Special case for the main thread before initialization. */
return ps_lgetfpregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
regset) != PS_OK ? TD_ERR : TD_OK;
/* We have to get the state and the PID for this thread. */
err = DB_GET_FIELD (cancelhandling, th->th_ta_p, th->th_unique, pthread,
cancelhandling, 0);
if (err != TD_OK)
return err;
/* If the thread already terminated we return all zeroes. */
if (((int) (uintptr_t) cancelhandling) & TERMINATED_BITMASK)
memset (regset, '\0', sizeof (*regset));
/* Otherwise get the register content through the callback. */
else
{
err = DB_GET_FIELD (tid, th->th_ta_p, th->th_unique, pthread, tid, 0);
if (err != TD_OK)
return err;
if (ps_lgetfpregs (th->th_ta_p->ph, (uintptr_t) tid, regset) != PS_OK)
return TD_ERR;
}
return TD_OK;
}
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