libdecnumber: Introduce libdecnumber Code

Add files from the libdecnumber decimal floating point library to QEMU.  The libdecnumber
library was originally part of GCC and contains code that is useful in emulating the PowerPC
decimal floating point (DFP) instructions.  This particular copy of the source comes from
GCC 4.3 and is licensed at GPLv2+.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 52 insertions, 0 deletions

diff --git a/include/libdecnumber/dconfig.h b/include/libdecnumber/dconfig.h
new file mode 100644
index 0000000000..ffbad255ce
--- /dev/null
+++ b/include/libdecnumber/dconfig.h
@@ -0,0 +1,52 @@
+/* Configure decNumber for either host or target.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2, or (at your option) any later
+   version.
+
+   In addition to the permissions in the GNU General Public License,
+   the Free Software Foundation gives you unlimited permission to link
+   the compiled version of this file into combinations with other
+   programs, and to distribute those combinations without any
+   restriction coming from the use of this file.  (The General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into a combine executable.)
+
+   GCC 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+#ifdef IN_LIBGCC2
+
+#include "tconfig.h"
+#include "coretypes.h"
+#include "tm.h"
+
+#ifndef LIBGCC2_WORDS_BIG_ENDIAN
+#define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
+#endif
+
+#ifndef LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
+#define LIBGCC2_FLOAT_WORDS_BIG_ENDIAN LIBGCC2_WORDS_BIG_ENDIAN
+#endif
+
+#if LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
+#define WORDS_BIGENDIAN 1
+#endif
+
+#else
+
+#include "config.h"
+
+#endif