From: Joseph Myers <joseph@codesourcery.com>
To: <libc-alpha@sourceware.org>
Subject: [04/12] Add fesetexcept: arm
Date: Thu, 11 Aug 2016 21:00:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.20.1608112059300.1591@digraph.polyomino.org.uk> (raw)
In-Reply-To: <alpine.DEB.2.20.1608112053120.1591@digraph.polyomino.org.uk>
This patch adds an ARM version of fesetexcept.
2016-08-11 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/fesetexcept.c: New file.
diff --git a/sysdeps/arm/fesetexcept.c b/sysdeps/arm/fesetexcept.c
new file mode 100644
index 0000000..96a79ae
--- /dev/null
+++ b/sysdeps/arm/fesetexcept.c
@@ -0,0 +1,38 @@
+/* Set given exception flags. ARM 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 <arm-features.h>
+
+int
+fesetexcept (int excepts)
+{
+ fpu_control_t fpscr, new_fpscr;
+
+ /* Fail if a VFP unit isn't present unless nothing needs to be done. */
+ if (!ARM_HAVE_VFP)
+ return (excepts != 0);
+
+ _FPU_GETCW (fpscr);
+ new_fpscr = fpscr | (excepts & FE_ALL_EXCEPT);
+ if (new_fpscr != fpscr)
+ _FPU_SETCW (new_fpscr);
+
+ return 0;
+}
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2016-08-11 21:00 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-11 20:57 [01/12] Add fesetexcept Joseph Myers
2016-08-11 20:59 ` [03/12] Add fesetexcept: alpha Joseph Myers
2016-08-11 20:59 ` [02/12] Add fesetexcept: aarch64 Joseph Myers
2016-08-11 21:45 ` Paul Eggert
2016-08-11 23:30 ` Joseph Myers
2016-08-11 21:00 ` [05/12] Add fesetexcept: hppa Joseph Myers
2016-08-11 21:00 ` Joseph Myers [this message]
2016-08-11 21:01 ` [06/12] Add fesetexcept: ia64 Joseph Myers
2016-08-11 21:01 ` [07/12] Add fesetexcept: m68k Joseph Myers
2016-08-11 21:02 ` [08/12] Add fesetexcept: mips Joseph Myers
2016-08-11 21:02 ` [09/12] Add fesetexcept: powerpc Joseph Myers
2016-08-12 16:18 ` Paul E. Murphy
2016-08-12 16:30 ` Joseph Myers
2016-08-12 16:47 ` Paul E. Murphy
2016-08-12 17:50 ` Joseph Myers
2016-08-11 21:03 ` [10/12] Add fesetexcept: s390 Joseph Myers
2016-08-15 8:07 ` Stefan Liebler
2016-08-15 20:52 ` Joseph Myers
2016-08-11 21:04 ` [11/12] Add fesetexcept: sh Joseph Myers
2016-08-11 21:04 ` [12/12] Add fesetexcept: sparc Joseph Myers
2016-08-12 7:32 ` Jose E. Marchesi
2016-08-12 11:15 ` Joseph Myers
2016-08-13 8:32 ` Jose E. Marchesi
2016-08-12 15:49 ` [01/12] Add fesetexcept Paul E. Murphy
2016-08-12 16:20 ` Joseph Myers
2016-08-12 17:25 ` Paul E. Murphy
2016-08-12 17:39 ` Joseph Myers
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