1/* Set a thread's floating-point register set.
2 Copyright (C) 1999-2021 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, see
18 <https://www.gnu.org/licenses/>. */
19
20#include "thread_dbP.h"
21
22
23td_err_e
24td_thr_setfpregs (const td_thrhandle_t *th, const prfpregset_t *fpregs)
25{
26 psaddr_t cancelhandling, tid;
27 td_err_e err;
28
29 LOG ("td_thr_setfpregs");
30
31 if (th->th_unique == 0)
32 /* Special case for the main thread before initialization. */
33 return ps_lsetfpregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
34 fpregs) != PS_OK ? TD_ERR : TD_OK;
35
36 /* We have to get the state and the PID for this thread. */
37 err = DB_GET_FIELD (cancelhandling, th->th_ta_p, th->th_unique, pthread,
38 cancelhandling, 0);
39 if (err != TD_OK)
40 return err;
41
42 /* Only set the registers if the thread hasn't yet terminated. */
43 if ((((int) (uintptr_t) cancelhandling) & TERMINATED_BITMASK) == 0)
44 {
45 err = DB_GET_FIELD (tid, th->th_ta_p, th->th_unique, pthread, tid, 0);
46 if (err != TD_OK)
47 return err;
48
49 if (ps_lsetfpregs (th->th_ta_p->ph, (uintptr_t) tid, fpregs) != PS_OK)
50 return TD_ERR;
51 }
52
53 return TD_OK;
54}
55