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| author | Joseph Myers <joseph@codesourcery.com> | 2016-09-07 16:47:30 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-09-07 16:47:30 +0000 |
| commit | 86bb437d6a0302c44c0bb59799e3c9b0e5c7bfdf (patch) | |
| tree | 3b6e3fc6c25c72be9d7072de8d11f8de5cc3ef15 | |
| parent | 9969e62e74cde7a78de10c220aeed200f8c93686 (diff) | |
| download | glibc-86bb437d6a0302c44c0bb59799e3c9b0e5c7bfdf.tar.gz glibc-86bb437d6a0302c44c0bb59799e3c9b0e5c7bfdf.tar.xz glibc-86bb437d6a0302c44c0bb59799e3c9b0e5c7bfdf.zip | |
Add femode_t functions: s390.
This patch adds S/390 versions of fegetmode and fesetmode. Untested. * sysdeps/s390/fpu/fegetmode.c: New file. * sysdeps/s390/fpu/fesetmode.c: Likewise.
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/fegetmode.c | 27 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/fesetmode.c | 39 |
3 files changed, 69 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index f5908563cf..cc0f321254 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2016-09-07 Joseph Myers <joseph@codesourcery.com> + * sysdeps/s390/fpu/fegetmode.c: New file. + * sysdeps/s390/fpu/fesetmode.c: Likewise. + * sysdeps/powerpc/fpu/fegetmode.c: New file. * sysdeps/powerpc/fpu/fesetmode.c: Likewise. * sysdeps/powerpc/nofpu/fegetmode.c: Likewise. diff --git a/sysdeps/s390/fpu/fegetmode.c b/sysdeps/s390/fpu/fegetmode.c new file mode 100644 index 0000000000..a6e67c20b1 --- /dev/null +++ b/sysdeps/s390/fpu/fegetmode.c @@ -0,0 +1,27 @@ +/* Store current floating-point control modes. S/390 version. + Copyright (C) 2016 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> + +int +fegetmode (femode_t *modep) +{ + _FPU_GETCW (*modep); + return 0; +} diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c new file mode 100644 index 0000000000..85a2f2b4e8 --- /dev/null +++ b/sysdeps/s390/fpu/fesetmode.c @@ -0,0 +1,39 @@ +/* Install given floating-point control modes. S/390 version. + Copyright (C) 2016 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 <fenv_libc.h> + +#define FPC_STATUS (FPC_FLAGS_MASK | FPC_DXC_MASK) + +int +fesetmode (const femode_t *modep) +{ + fpu_control_t fpc; + + _FPU_GETCW (fpc); + fpc &= FPC_STATUS; + if (modep == FE_DFL_MODE) + fpc |= _FPU_DEFAULT; + else + fpc |= *modep & ~FPC_STATUS; + _FPU_SETCW (fpc); + + return 0; +} |