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authorJoseph Myers <joseph@codesourcery.com>2013-10-18 21:03:40 +0000
committerJoseph Myers <joseph@codesourcery.com>2013-10-18 21:04:22 +0000
commit3c8325fb47c3688cc7d9b70ada2ec71fb0eb219a (patch)
treeeb315c426bd9c1f5aa42f40f6e9e74f2d7aabcd3 /sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c
parent289528850de3c197821e0b670b23980ff8b4d538 (diff)
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Add e500 port.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c')
-rw-r--r--sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c
new file mode 100644
index 0000000000..43f2d19d17
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c
@@ -0,0 +1,55 @@
+/* Set floating-point environment exception handling.  e500 version.
+   Copyright (C) 1997-2013 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
+__fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  unsigned long old_spefscr, spefscr;
+  fexcept_t flag;
+  int excepts_spe = __fexcepts_to_spe (excepts);
+
+  /* Get the current state.  */
+  old_spefscr = fegetenv_register ();
+
+  /* Ignore exceptions not listed in 'excepts'.  */
+  flag = *flagp & excepts_spe;
+
+  /* Replace the exception status */
+  spefscr = (old_spefscr & ~excepts_spe) | flag;
+
+  /* Store the new status word (along with the rest of the environment).  */
+  fesetenv_register (spefscr);
+
+  /* If the state of the "invalid" or "underflow" flag has changed,
+     inform the kernel.  */
+  if (((spefscr ^ old_spefscr) & (SPEFSCR_FINVS | SPEFSCR_FUNFS)) != 0)
+    __fe_note_change ();
+
+  /* Success.  */
+  return 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);