gas/ChangeLog:

gas/ChangeLog:
	* dwarf2dbg.c (DWARF2_USE_FIXED_ADVANCE_PC): New.
	(out_sleb128): New.
	(out_fixed_inc_line_addr): New.
	(process_entries): Use out_fixed_inc_line_addr when
	DWARF2_USE_FIXED_ADVANCE_PC is set.
	* config/tc-xtensa.h (DWARF2_USE_FIXED_ADVANCE_PC): Define.
gas/testsuite/ChangeLog:
	* gas/lns/lns-common-1-alt.d: New file.
	* gas/lns/lns.exp: Use lns-common-1-alt.d for xtensa targets.