* objcopy.c (copy_main): Initialize context variable.
	PR binutils/15140
	* ar.c (open_inarch): Fail on attempts to convert a normal archive
	to a thin archive or vice versa.
	* elfcomm.c (make_qualified_name): Handle corrupted thin
	archives.
	* readelf.c (process_archive): Likewise.
	* doc/binutils.texi: Clarify documentation describing thin
	archives.

	* archive.c (_bfd_get_elt_at_filepos): Prevent an infinite loop
	accessing a corrupt nested archive.
	* metag-dis.c: Initialize outf->bytes_per_chunk to 4
	which also makes the disassembler output be in little
	endian like it should be.

	* metag/labelarithmetic.d: Fix the expected disassembler
	output to be in little endian format
	* metag/metacore12.d: likewise
	* metag/metacore21.d: likewise
	* metag/metacore21ext.d: likewise
	* metag/metadsp21.d: likewise
	* metag/metadsp21ext.d: likewise
	* metag/metafpu.d: likewise
	* metag/metafpuext.d: likewise
	* metag/tls.d: likewise

	* ld-metag/pcrel.d: Fix the expected disassembler
	output to be in little endian format
	* ld-metag/shared.d: likewise
	* ld-metag/stub.d: likewise
	* ld-metag/stub_pic_app.d: likewise
	* ld-metag/stub_pic_shared.d: likewise
	* ld-metag/stub_shared.d: likewise