diff options
Diffstat (limited to 'sysdeps/i386/fpu/fsetexcptflg.c')
-rw-r--r-- | sysdeps/i386/fpu/fsetexcptflg.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/sysdeps/i386/fpu/fsetexcptflg.c b/sysdeps/i386/fpu/fsetexcptflg.c deleted file mode 100644 index efa64aaefd..0000000000 --- a/sysdeps/i386/fpu/fsetexcptflg.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Set floating-point environment exception handling. - Copyright (C) 1997-2017 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 <math.h> -#include <unistd.h> -#include <ldsodefs.h> -#include <dl-procinfo.h> - -int -__fesetexceptflag (const fexcept_t *flagp, int excepts) -{ - fenv_t temp; - - /* Get the current environment. We have to do this since we cannot - separately set the status word. */ - __asm__ ("fnstenv %0" : "=m" (*&temp)); - - temp.__status_word &= ~(excepts & FE_ALL_EXCEPT); - temp.__status_word |= *flagp & excepts & FE_ALL_EXCEPT; - - /* Store the new status word (along with the rest of the environment. - Possibly new exceptions are set but they won't get executed unless - the next floating-point instruction. */ - __asm__ ("fldenv %0" : : "m" (*&temp)); - - /* If the CPU supports SSE, we set the MXCSR as well. */ - if (HAS_CPU_FEATURE (SSE)) - { - unsigned int xnew_exc; - - /* Get the current MXCSR. */ - __asm__ ("stmxcsr %0" : "=m" (*&xnew_exc)); - - /* Set the relevant bits. */ - xnew_exc &= ~(excepts & FE_ALL_EXCEPT); - xnew_exc |= *flagp & excepts & FE_ALL_EXCEPT; - - /* Put the new data in effect. */ - __asm__ ("ldmxcsr %0" : : "m" (*&xnew_exc)); - } - - /* Success. */ - return 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); |