mirror of
git://sourceware.org/git/glibc.git
synced 2025-01-30 12:31:53 +08:00
6b3dc26c76
* sysdeps/arm/eabi/fgetexcptflg.c: New. * sysdeps/arm/eabi/fsetexcptflg.c (__fesetexceptflag): Operate on set exception flags, not on mask of enabled exceptions.
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Set floating-point environment exception handling.
|
|
Copyright (C) 1997,98,99,2000,01,05,08 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 General Public License
|
|
along with GCC; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301, USA. */
|
|
|
|
#include <fenv.h>
|
|
#include <math.h>
|
|
#include <fpu_control.h>
|
|
|
|
#include <unistd.h>
|
|
#include <ldsodefs.h>
|
|
#include <dl-procinfo.h>
|
|
#include <sysdep.h>
|
|
|
|
int
|
|
__fesetexceptflag (const fexcept_t *flagp, int excepts)
|
|
{
|
|
if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
|
|
{
|
|
fexcept_t temp;
|
|
|
|
/* Get the current environment. */
|
|
_FPU_GETCW (temp);
|
|
|
|
/* Set the desired exception mask. */
|
|
temp &= ~(excepts & FE_ALL_EXCEPT);
|
|
temp |= (*flagp & excepts & FE_ALL_EXCEPT);
|
|
|
|
/* Save state back to the FPU. */
|
|
_FPU_SETCW (temp);
|
|
|
|
/* Success. */
|
|
return 0;
|
|
}
|
|
|
|
/* Unsupported, so fail. */
|
|
return 1;
|
|
}
|
|
|
|
#include <shlib-compat.h>
|
|
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
|
|
strong_alias (__fesetexceptflag, __old_fesetexceptflag)
|
|
compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
|
|
#endif
|
|
|
|
versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);
|