PR c++/19797
	* elf.h, pa64-hpux.h, som.h (ASM_OUTPUT_EXTERNAL_REAL): Define.
	(ASM_OUTPUT_EXTERNAL): Call pa_hpux_asm_output_external.
	* pa-protos.h (pa_hpux_asm_output_external): Add prototype.
	* pa.c (get_plabel): Change argument to symbol_ref.  Call
	maybe_get_identifier instead of get_identifier.
	(pa_hpux_asm_output_external, pa_hpux_file_end): New functions.
	(struct deferred_plabel): Replace name field with symbol field.
	(TARGET_ASM_FILE_END): Define as pa_hpux_file_end if
	ASM_OUTPUT_EXTERNAL_REAL is defined.
	(output_global_address): Use output_addr_const for output of all
	symbol_refs.
	(output_deferred_plabels): Use symbol_ref instead of name for address
	output.
	* pa.h (SYMBOL_FLAG_REFERENCED, SYMBOL_REF_REFERENCED_P,
	ASM_OUTPUT_SYMBOL_REF): New macros.
	* som.h (ASM_OUTPUT_EXTERNAL_LIBCALL): Use assemble_name_raw.  Update
	comment.
	(ASM_WEAKEN_LABEL): Use targetm.asm_out.globalize_label to globalize
	label.
	* g++.dg/abi/vague1.C: Remove xfail hppa*-*-hpux*.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r95921