re PR target/20446 (invalid assembly with -gstabs+)

re PR target/20446 (invalid assembly with -gstabs+)

	PR target/20446
	* config/sparc/sparc.h (NEED_INDICATE_EXEC_STACK): Define to 0.
	* config/sparc/linux.h (TARGET_ASM_FILE_END): Delete.
	(NEED_INDICATE_EXEC_STACK): Define to 1.
	* config/sparc/linux64.h (TARGET_ASM_FILE_END): Delete.
	(NEED_INDICATE_EXEC_STACK): Define to 1.
	* config/sparc/sparc.c (TARGET_ASM_FILE_END): Set to sparc_file_end.
	(add_pc_to_pic_symbol): Rename into pic_helper_symbol.
	(add_pc_to_pic_symbol_name): Rename into pic_helper_symbol_name.
	(pic_helper_emitted_p): New global.
	(emit_pic_helper): New function extracted from...
	(load_pic_register): ...here.  Add 'delay_pic_helper' parameter.
	Do not call emit_pic_helper if delay_pic_helper is true.
	(sparc_expand_prologue): Pass 'false' to load_pic_register.
	(sparc_output_mi_thunk): Pass 'true' to load_pic_register.
	(sparc_file_end): New function.

From-SVN: r97550