[patch 1/3]: AndesCore (nds32) support

[Sabrina Ni]

  On behalf of Andes Technology Co., I would like to contribute
support for the AndesCore families of CPUs to newlib/libgloss. NDS32
is a new high-performance 32-bit RISC microprocessor core. Here is a
brief introduction.
andes (nds32)
Manufacturer: Various licensees of Andes Technology Corporation
CPUs include: AndesCore families N7, N8, SN8, N9, N10, N12 and N13
Andes Documentation (link is
http://www.andestech.com/en/products/documentation.htm)

  For completeness of Andes nds32 GNU toolchain, we are going to
submit 'nds32' port for other three packages - binutils, GCC and GDB
in the same time.

  The correctness of 'nds32' port for newlib was verified by newlib
testsuite with nds32le-elf/nds32le-elf target GNU toolchains. (Testing
reports are enclosed.)

  For all generated files, an adequate version of autotools was used:
autoconf 2.68, aclocal 1.11.6, and automake 1.11.6.

  Here are three patches enclosed: (confirmed error-free to commit into cvs.)
[patch 1/3]: 0001-Add-nds32-port-in-newlib.-Provide-minimal-architectu.patch
[patch 2/3]: 0002-Add-nds32-port-in-libgloss.patch
[patch 3/3]: 0003-Add-machine-specific-code-for-nds32-port.patch

  Your reviewing is greatly appreciated.

Thanks,
Hui-Wen Ni
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