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, 90 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/nds32/sys/regdef.h b/libc/sysdeps/linux/nds32/sys/regdef.h
new file mode 100644
index 000000000..e37dcdd62
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/sys/regdef.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* Copyright (C) 1997, 1998, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Contributed by Ralf Baechle <ralf@gnu.org>.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_REGDEF_H
+#define _SYS_REGDEF_H
+
+/*
+ * Symbolic register names for 32 bit ABI
+ */
+#define o0	r0	/* arguments r0 ~ r5 */
+#define o1	r1
+#define o2	r2
+#define o3	r3
+#define o4	r4
+#define o5	r5
+#define o6	r6
+#define o7	r7
+
+#define h0	r0	/* arguments r0 ~ r5 */
+#define h1	r1
+#define h2	r2
+#define h3	r3
+#define h4	r4
+#define h5	r5
+#define h6	r6
+#define h7	r7
+#define h8	r8
+#define h9	r9
+#define h10	r10
+#define h11	r11
+#define h12	r16
+#define h13	r17
+#define h14	r18
+#define h15	r19
+
+#define a0	r0	/* arguments r0 ~ r5 */
+#define a1	r1
+#define a2	r2
+#define a3	r3
+#define a4	r4
+#define a5	r5
+#define s0	r6
+#define s1	r7
+#define s2	r8
+#define s3	r9
+#define s4	r10
+#define s5	r11
+#define s6	r12
+#define s7	r13
+#define s8	r14
+#define ta	r15
+#define t0	r16
+#define t1	r17
+#define t2	r18
+#define t3	r19
+#define t4	r20
+#define t5	r21
+#define t6	r22
+#define t7	r23
+#define t8	r24
+#define t9	r25
+#define p0	r26
+#define p1	r27
+#define r28	fp
+#define s9	r28
+#define r29	gp
+#define r30	ra
+#define r31	sp
+
+#endif /* _SYS_REGDEF_H */