nds32: add support for new architecture

Add support for Andes Technology NDS32 architecture.
See here http://www.andestech.com/en/index/index.htm for more
informaton. Verification of the port from an older uClibc
port was done on a sponsored AG101p board.

The testsuite only has 5 errors, three are related to
an existing bug in dlclose() with LT.old, also happening
on cris32 and m68k.

Failures to fallocate/posix_fallocate are unresolved.

Thanks to Andes Technology sponsoring the hardware and
being very helpful while doing the uClibc-ng porting.

Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/nds32/jmpbuf-offsets.h b/libc/sysdeps/linux/nds32/jmpbuf-offsets.h
new file mode 100644
index 000000000..e88278f62
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/jmpbuf-offsets.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* Private macros for accessing __jmp_buf contents.  NDS32 version.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+   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/>.  */
+
+/*
+r6 r7 r8 r9 r10 r11 r12 r13 r14 r16 r17 r18 r19 r28 r29 r30 r31
+ 0  1  2  3   4   5   6   7   8   9  10  11  12  13  14  15  16
+*/
+
+#define __JMP_BUF_SP            12