LoongArch ld support

2021-10-22  Chenghua Xu  <xuchenghua@loongson.cn>
	    Zhensong Liu  <liuzhensong@loongson.cn>
	    Weinan Liu  <liuweinan@loongson.cn>
	    Xiaolin Tang  <tangxiaolin@loongson.cn>

ld/
	* Makefile.am: Add LoongArch.
	* NEWS: Mention LoongArch support.
	* configure.tgt: Add LoongArch.
	* emulparams/elf32loongarch-defs.sh: New.
	* emulparams/elf32loongarch.sh: Likewise.
	* emulparams/elf64loongarch-defs.sh: Likewise.
	* emulparams/elf64loongarch.sh: Likewise.
	* emultempl/loongarchelf.em: Likewise.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
ld/testsuite/
	* ld-loongarch-elf/disas-jirl.d: New.
	* ld-loongarch-elf/disas-jirl.s: Likewise.
	* ld-loongarch-elf/jmp_op.d: Likewise.
	* ld-loongarch-elf/jmp_op.s: Likewise.
	* ld-loongarch-elf/ld-loongarch-elf.exp: Likewise.
	* ld-loongarch-elf/macro_op.d: Likewise.
	* ld-loongarch-elf/macro_op.s: Likewise.
	* ld-loongarch-elf/syscall-0.s: Likewise.
	* ld-loongarch-elf/syscall-1.s: Likewise.
	* ld-loongarch-elf/syscall.d: Likewise.
	* ld-srec/srec.exp: Add LoongArch.
	* ld-unique/pr21529.d: Likewise.
22 files changed