39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
|
/* Store current floating-point environment and clear exceptions for
|
||
|
|
atomic compound assignment.
|
||
|
|
Copyright (C) 2013-2022 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
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 "soft-fp.h"
|
||
|
|
#include "soft-supp.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
__atomic_feholdexcept (fenv_t *envp)
|
||
|
|
{
|
||
|
|
fenv_union_t u;
|
||
|
|
|
||
|
|
u.l[0] = __sim_exceptions_thread;
|
||
|
|
/* The rounding mode is not changed by arithmetic, so no need to
|
||
|
|
save it. */
|
||
|
|
u.l[1] = __sim_disabled_exceptions_thread;
|
||
|
|
*envp = u.fenv;
|
||
|
|
|
||
|
|
/* This function postdates the global variables being turned into
|
||
|
|
compat symbols, so no need to set them. */
|
||
|
|
__sim_exceptions_thread = 0;
|
||
|
|
__sim_disabled_exceptions_thread = FE_ALL_EXCEPT;
|
||
|
|
}
|