lb1sf68.asm: Add __PIC__ and __ID_SHARED_LIBRARY__ support.

lb1sf68.asm: Add __PIC__ and __ID_SHARED_LIBRARY__ support.

	* config/m68k/lb1sf68.asm: Add __PIC__ and __ID_SHARED_LIBRARY__
	support.
	* config/m68k/m68k-none.h (ASM_SPEC): Pass --pcrel to assembler on
	-fpic, -fPIC, -msep-data and -mid-shared-library.
	* config/m68k/m68k.c (m68k_library_id_string): New global variable.
	(override_options): Add -msep-data and -mshared-library-id support.
	(m68k_output_function_prologue): Generate code to load A5 for
	TARGET_ID_SHARED_LIBRARY and TARGET_SEP_DATA.
	(m68k_output_mi_thunk): Emit indirect jump on TARGET_ID_SHARED_LIBRARY.
	(m68k_output_pic_call): New function.
	* gcc/config/m68k/m68k.h (TARGET_SEP_DATA): New target flag.
	(TARGET_ID_SHARED_LIBRARY): Ditto.
	(TARGET_SWITCHES): Add switches for -mid-shared-library and -msep-data.
	* gcc/config/m68k/m68k.md (call): Call m68k_output_pic_call().
	(call_value): Likewise.

From-SVN: r72324