diff options
Diffstat (limited to 'ports/sysdeps/arm/fclrexcpt.c')
-rw-r--r-- | ports/sysdeps/arm/fclrexcpt.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/fclrexcpt.c b/ports/sysdeps/arm/fclrexcpt.c new file mode 100644 index 0000000000..ddedc3573c --- /dev/null +++ b/ports/sysdeps/arm/fclrexcpt.c @@ -0,0 +1,60 @@ +/* Clear given exceptions in current floating-point environment. + Copyright (C) 1997,98,99,2000,01,05,11 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 <fpu_control.h> + +#include <unistd.h> +#include <ldsodefs.h> +#include <dl-procinfo.h> +#include <sysdep.h> + +int +__feclearexcept (int excepts) +{ + if (GLRO (dl_hwcap) & HWCAP_ARM_VFP) + { + unsigned long int temp; + + /* Mask out unsupported bits/exceptions. */ + excepts &= FE_ALL_EXCEPT; + + /* Get the current floating point status. */ + _FPU_GETCW (temp); + + /* Clear the relevant bits. */ + temp = (temp & ~FE_ALL_EXCEPT) | (temp & FE_ALL_EXCEPT & ~excepts); + + /* Put the new data in effect. */ + _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 (__feclearexcept, __old_feclearexcept) +compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1); +#endif + +versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2); |