Add femode_t functions: powerpc.

This patch adds PowerPC versions of fegetmode and fesetmode.

	* sysdeps/powerpc/fpu/fegetmode.c: New file.
	* sysdeps/powerpc/fpu/fesetmode.c: Likewise.
	* sysdeps/powerpc/nofpu/fegetmode.c: Likewise.
	* sysdeps/powerpc/nofpu/fesetmode.c: Likewise.
	* sysdeps/powerpc/powerpc32/e500/nofpu/fegetmode.c: Likewise.
	* sysdeps/powerpc/powerpc32/e500/nofpu/fesetmode.c: Likewise.

2 files changed, 67 insertions, 0 deletions

diff --git a/sysdeps/powerpc/nofpu/fegetmode.c b/sysdeps/powerpc/nofpu/fegetmode.c
new file mode 100644
index 0000000000..e7d68182f6
--- /dev/null
+++ b/sysdeps/powerpc/nofpu/fegetmode.c
@@ -0,0 +1,33 @@
+/* Store current floating-point control modes.  PowerPC soft-float 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 "soft-fp.h"
+#include "soft-supp.h"
+
+int
+fegetmode (femode_t *modep)
+{
+  fenv_union_t u;
+
+  u.l[0] = __sim_round_mode_thread;
+  u.l[1] = __sim_disabled_exceptions_thread;
+
+  *modep = u.fenv;
+
+  return 0;
+}
diff --git a/sysdeps/powerpc/nofpu/fesetmode.c b/sysdeps/powerpc/nofpu/fesetmode.c
new file mode 100644
index 0000000000..8f9f66c8f0
--- /dev/null
+++ b/sysdeps/powerpc/nofpu/fesetmode.c
@@ -0,0 +1,34 @@
+/* Install given floating-point control modes.  PowerPC soft-float 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 "soft-fp.h"
+#include "soft-supp.h"
+
+int
+fesetmode (const femode_t *modep)
+{
+  fenv_union_t u;
+
+  u.fenv = *modep;
+  __sim_round_mode_thread = u.l[0];
+  SIM_SET_GLOBAL (__sim_round_mode_global, __sim_round_mode_thread);
+  __sim_disabled_exceptions_thread = u.l[1];
+  SIM_SET_GLOBAL (__sim_disabled_exceptions_global,
+		  __sim_disabled_exceptions_thread);
+  return 0;
+}