Add powerpc-nofpu/e500 support functions for atomic compound assignment and FLT_ROUNDS.

1 files changed, 37 insertions, 0 deletions

diff --git a/sysdeps/powerpc/nofpu/atomic-feupdateenv.c b/sysdeps/powerpc/nofpu/atomic-feupdateenv.c
new file mode 100644
index 0000000000..9334e1192c
--- /dev/null
+++ b/sysdeps/powerpc/nofpu/atomic-feupdateenv.c
@@ -0,0 +1,37 @@
+/* Install given floating-point environment and raise exceptions for
+   atomic compound assignment.
+   Copyright (C) 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 "soft-fp.h"
+#include "soft-supp.h"
+#include <signal.h>
+
+void
+__atomic_feupdateenv (const fenv_t *envp)
+{
+  fenv_union_t u;
+  int saved_exceptions = __sim_exceptions_thread;
+
+  /* This function postdates the global variables being turned into
+     compat symbols, so no need to set them.  */
+  u.fenv = *envp;
+  __sim_exceptions_thread |= u.l[0];
+  __sim_disabled_exceptions_thread = u.l[1];
+  if (saved_exceptions & ~__sim_disabled_exceptions_thread)
+    raise (SIGFPE);
+}