2012-09-06 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>

2012-09-06  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/tc-s390.c (set_highgprs_p): New variable.
	(s390_machinemode): New function.
	(md_pseudo_table): Add new pseudo command machinemode.
	(md_parse_option): Set set_highgprs_p to TRUE if -mzarch was
	specified on command line.
	(s390_elf_final_processing): Set the highgprs flag in the ELF
	header depending on set_highgprs_p.

	* doc/c-s390.texi: Document new pseudo machinemode.