[PATCH 0/7][LoongArch] Add LoongArch port support.

[Paul Hua]

Hi all:

This is a series patch set to support LoongArch.

The LoongArch architecture (LoongArch) is an Instruction Set
Architecture (ISA) that has a Reduced Instruction Set Computer (RISC)
style. The documents are on
https://github.com/loongson/LoongArch-Documentation

The ELF ABI Documents are on
https://github.com/loongson/LoongArch-Documentation/blob/main/LoongArch-ELF-ABI-EN.adoc

The GCC code based on GCC trunk:
https://github.com/loongson/gcc/tree/loongarch_upstream
The GLIBC code based on GLIBC trunk:
https://github.com/loongson/glibc/commits/loongarch_2_34_for_upstream

We will send those patches for review soon.

Thanks.