Add fesetexcept: aarch64.

This patch adds an AArch64 version of fesetexcept.  Untested.

	* sysdeps/aarch64/fpu/fesetexcept.c: New file.

diff --git a/ChangeLog b/ChangeLog
index 3c90d9c852e559131f66759de2cb04eeb4be16da..2aacdbd6b99312d0fd14d30ffc8290c1b7e021ff 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2016-08-16  Joseph Myers  <joseph@codesourcery.com>
 
+       * sysdeps/aarch64/fpu/fesetexcept.c: New file.
+
        * math/fesetexcept.c: New file.
        * sysdeps/i386/fpu/fesetexcept.c: Likewise.
        * sysdeps/x86_64/fpu/fesetexcept.c: Likewise.

diff --git a/sysdeps/aarch64/fpu/fesetexcept.c b/sysdeps/aarch64/fpu/fesetexcept.c
new file mode 100644 (file)
index 0000000..52210bb
--- /dev/null
+++ b/sysdeps/aarch64/fpu/fesetexcept.c
@@ -0,0 +1,34 @@
+/* Set given exception flags.  AArch64 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
+fesetexcept (int excepts)
+{
+  fpu_fpsr_t fpsr;
+  fpu_fpsr_t fpsr_new;
+
+  _FPU_GETFPSR (fpsr);
+  fpsr_new = fpsr | (excepts & FE_ALL_EXCEPT);
+  if (fpsr != fpsr_new)
+    _FPU_SETFPSR (fpsr_new);
+
+  return 0;
+}