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authorJoseph Myers <joseph@codesourcery.com>2016-08-16 16:22:12 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-08-16 16:22:12 +0000
commitb22be8c36833338070c911081c9f0a83a1fbe3d5 (patch)
tree171e1167b7b1b3d9227d605feee28140cdee9831 /sysdeps/powerpc/powerpc32/e500/nofpu
parent760c61e944158c134d3d6209b127a5c3ac194d76 (diff)
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Add fesetexcept: powerpc.
This patch adds PowerPC versions of fesetexcept.

	* sysdeps/powerpc/fpu/fesetexcept.c: New file.
	* sysdeps/powerpc/nofpu/fesetexcept.c: Likewise.
	* sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c: Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/e500/nofpu')
-rw-r--r--sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c
new file mode 100644
index 0000000000..ff82f223ed
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c
@@ -0,0 +1,37 @@
+/* Set given exception flags.  e500 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_libc.h>
+
+int
+fesetexcept (int excepts)
+{
+  unsigned long old_spefscr, spefscr;
+  int excepts_spe = __fexcepts_to_spe (excepts);
+
+  old_spefscr = fegetenv_register ();
+  spefscr = old_spefscr | excepts_spe;
+  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 ();
+
+  return 0;
+}