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Diffstat (limited to 'sysdeps/arm/fsetexcptflg.c')
-rw-r--r-- | sysdeps/arm/fsetexcptflg.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/arm/fsetexcptflg.c b/sysdeps/arm/fsetexcptflg.c new file mode 100644 index 0000000000..0c88c0fa70 --- /dev/null +++ b/sysdeps/arm/fsetexcptflg.c @@ -0,0 +1,56 @@ +/* Set floating-point environment exception handling. + Copyright (C) 1997-2014 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 + <http://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include <math.h> +#include <fpu_control.h> +#include <arm-features.h> + + +int +__fesetexceptflag (const fexcept_t *flagp, int excepts) +{ + if (ARM_HAVE_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 unless nothing needs to be done. */ + return (excepts != 0); +} + +#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); |