| /* Store current representation for exceptions. |
| Copyright (C) 1997-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. |
| |
| 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 <unistd.h> |
| #include <ldsodefs.h> |
| #include <dl-procinfo.h> |
| |
| |
| int |
| __fegetexceptflag (fexcept_t *flagp, int excepts) |
| { |
| fexcept_t temp; |
| |
| /* Get the current exceptions. */ |
| __asm__ ("fnstsw %0" : "=m" (*&temp)); |
| |
| *flagp = temp & excepts & FE_ALL_EXCEPT; |
| |
| /* If the CPU supports SSE, we clear the MXCSR as well. */ |
| if ((GLRO(dl_hwcap) & HWCAP_I386_XMM) != 0) |
| { |
| unsigned int sse_exc; |
| |
| /* Get the current MXCSR. */ |
| __asm__ ("stmxcsr %0" : "=m" (*&sse_exc)); |
| |
| *flagp |= sse_exc & excepts & FE_ALL_EXCEPT; |
| } |
| |
| /* Success. */ |
| return 0; |
| } |
| |
| #include <shlib-compat.h> |
| #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) |
| strong_alias (__fegetexceptflag, __old_fegetexceptflag) |
| compat_symbol (libm, __old_fegetexceptflag, fegetexceptflag, GLIBC_2_1); |
| #endif |
| |
| versioned_symbol (libm, __fegetexceptflag, fegetexceptflag, GLIBC_2_2); |
