diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c b/REORG.TODO/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c new file mode 100644 index 0000000000..3dd3161f7d --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c @@ -0,0 +1,39 @@ +/* Note a change to floating-point exceptions. + Copyright (C) 2013-2017 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_libc.h> +#include <sysdep.h> +#include <sys/prctl.h> + +/* Inform the kernel of a change to floating-point exceptions. */ + +void +__fe_note_change (void) +{ + int pflags, r; + INTERNAL_SYSCALL_DECL (err); + + r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &pflags); + if (INTERNAL_SYSCALL_ERROR_P (r, err)) + return; + if ((pflags & PR_FP_EXC_SW_ENABLE) == 0) + INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, + pflags | PR_FP_EXC_SW_ENABLE); +} + +libm_hidden_def (__fe_note_change) |