Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge

1 files changed, 59 insertions, 0 deletions

diff --git a/ports/sysdeps/arm/fsetexcptflg.c b/ports/sysdeps/arm/fsetexcptflg.c
new file mode 100644
index 0000000000..bee51a96a2
--- /dev/null
+++ b/ports/sysdeps/arm/fsetexcptflg.c
@@ -0,0 +1,59 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1997,98,99,2000,01,05,08,11 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 <math.h>
+#include <fpu_control.h>
+
+#include <unistd.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+#include <sysdep.h>
+
+int
+__fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
+    {
+      fexcept_t temp;
+
+      /* Get the current environment.  */
+      _FPU_GETCW (temp);
+
+      /* Set the desired exception mask.  */
+      temp &= ~(excepts & FE_ALL_EXCEPT);
+      temp |= (*flagp & excepts & FE_ALL_EXCEPT);
+
+      /* Save state back to the FPU.  */
+      _FPU_SETCW (temp);
+
+      /* Success.  */
+      return 0;
+    }
+
+  /* Unsupported, so fail unless nothing needs to be done.  */
+  return (excepts != 0);
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fesetexceptflag, __old_fesetexceptflag)
+compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
+#endif
+
+versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);