diff options
Diffstat (limited to 'sysdeps/arm/fesetenv.c')
-rw-r--r-- | sysdeps/arm/fesetenv.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/sysdeps/arm/fesetenv.c b/sysdeps/arm/fesetenv.c deleted file mode 100644 index e28d0a5d02..0000000000 --- a/sysdeps/arm/fesetenv.c +++ /dev/null @@ -1,66 +0,0 @@ -/* Install given floating-point environment. - Copyright (C) 2004-2017 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 <arm-features.h> - - -int -__fesetenv (const fenv_t *envp) -{ - fpu_control_t fpscr, new_fpscr, updated_fpscr; - - /* Fail if a VFP unit isn't present. */ - if (!ARM_HAVE_VFP) - return 1; - - _FPU_GETCW (fpscr); - - if ((envp != FE_DFL_ENV) && (envp != FE_NOMASK_ENV)) - { - /* The new FPSCR is valid, so don't merge the reserved flags. */ - new_fpscr = envp->__cw; - - /* Write new FPSCR if different (ignoring NZCV flags). */ - if (((fpscr ^ new_fpscr) & ~_FPU_MASK_NZCV) != 0) - _FPU_SETCW (new_fpscr); - - return 0; - } - - /* Preserve the reserved FPSCR flags. */ - new_fpscr = fpscr & _FPU_RESERVED; - new_fpscr |= (envp == FE_DFL_ENV) ? _FPU_DEFAULT : _FPU_IEEE; - - if (((new_fpscr ^ fpscr) & ~_FPU_MASK_NZCV) != 0) - { - _FPU_SETCW (new_fpscr); - - /* Not all VFP architectures support trapping exceptions, so - test whether the relevant bits were set and fail if not. */ - _FPU_GETCW (updated_fpscr); - - return new_fpscr & ~updated_fpscr; - } - - return 0; -} -libm_hidden_def (__fesetenv) -weak_alias (__fesetenv, fesetenv) -libm_hidden_weak (fesetenv) |