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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-12-27 18:56:13 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-12-27 18:57:13 +0000
commit82dd75a7f436a19047325d62182590c9f9e23a78 (patch)
tree60ca20c8cf2b0d178d84725c0715471f76df97e1 /sysdeps/powerpc/fpu/fesetexcept.c
parent0bbb676a2342367c4e52b35e890f24667dabb348 (diff)
parent963c37d5c0eb62b38f8764b23931c0dcdd497a13 (diff)
Merge commit 'refs/top-bases/t/tls' into t/tls
Diffstat (limited to 'sysdeps/powerpc/fpu/fesetexcept.c')
-rw-r--r--sysdeps/powerpc/fpu/fesetexcept.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/fesetexcept.c b/sysdeps/powerpc/fpu/fesetexcept.c
new file mode 100644
index 0000000000..85419c79f0
--- /dev/null
+++ b/sysdeps/powerpc/fpu/fesetexcept.c
@@ -0,0 +1,42 @@
+/* Set given exception flags. PowerPC version.
+ Copyright (C) 2016-2018 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>
+
+int
+fesetexcept (int excepts)
+{
+ fenv_union_t u, n;
+
+ u.fenv = fegetenv_register ();
+ n.l = (u.l
+ | (excepts & FPSCR_STICKY_BITS)
+ /* Turn FE_INVALID into FE_INVALID_SOFTWARE. */
+ | (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
+ & FE_INVALID_SOFTWARE));
+ if (n.l != u.l)
+ {
+ fesetenv_register (n.fenv);
+
+ /* Deal with FE_INVALID_SOFTWARE not being implemented on some chips. */
+ if (excepts & FE_INVALID)
+ feraiseexcept (FE_INVALID);
+ }
+
+ return 0;
+}