Merge changes between r23946 and r24305 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@24306 7b3dc134-2b1b-0410-93df-9e9f96275f8d

1 files changed, 46 insertions, 0 deletions

diff --git a/libc/sysdeps/powerpc/nofpu/sim-full.c b/libc/sysdeps/powerpc/nofpu/sim-full.c
new file mode 100644
index 000000000..e16703323
--- /dev/null
+++ b/libc/sysdeps/powerpc/nofpu/sim-full.c
@@ -0,0 +1,46 @@
+/* Software floating-point exception handling emulation.
+   Copyright (C) 2002-2013 Free Software Foundation, Inc.
+   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
+   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 <signal.h>
+#include "soft-fp.h"
+#include "soft-supp.h"
+
+/* FIXME: these variables should be thread specific (see bugzilla bug
+   15483) and ideally preserved across signal handlers, like hardware
+   FP status words, but the latter is quite difficult to accomplish in
+   userland.  */
+
+/* Global to store sticky exceptions.  */
+int __sim_exceptions __attribute__ ((nocommon));
+libc_hidden_data_def (__sim_exceptions);
+
+/* By default, no exceptions should trap.  */
+int __sim_disabled_exceptions = 0xffffffff;
+libc_hidden_data_def (__sim_disabled_exceptions);
+
+int __sim_round_mode __attribute__ ((nocommon));
+libc_hidden_data_def (__sim_round_mode);
+
+void
+__simulate_exceptions (int x)
+{
+  __sim_exceptions |= x;
+  if (x & ~__sim_disabled_exceptions)
+    raise (SIGFPE);
+}