| /* Install given floating-point environment. |
| Copyright (C) 2004-2014 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 <fpu_control.h> |
| #include <arm-features.h> |
| |
| |
| int |
| __fesetenv (const fenv_t *envp) |
| { |
| if (ARM_HAVE_VFP) |
| { |
| unsigned int temp; |
| |
| _FPU_GETCW (temp); |
| temp &= _FPU_RESERVED; |
| |
| if (envp == FE_DFL_ENV) |
| temp |= _FPU_DEFAULT; |
| else if (envp == FE_NOMASK_ENV) |
| temp |= _FPU_IEEE; |
| else |
| temp |= envp->__cw & ~_FPU_RESERVED; |
| |
| _FPU_SETCW (temp); |
| |
| if (envp == FE_NOMASK_ENV) |
| { |
| /* VFPv3 and VFPv4 do not support trapping exceptions, so |
| test whether the relevant bits were set and fail if |
| not. */ |
| _FPU_GETCW (temp); |
| if ((temp & _FPU_IEEE) != _FPU_IEEE) |
| return 1; |
| } |
| |
| /* Success. */ |
| return 0; |
| } |
| |
| /* Unsupported, so fail. */ |
| return 1; |
| } |
| |
| #include <shlib-compat.h> |
| libm_hidden_ver (__fesetenv, fesetenv) |
| versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2); |
