re PR target/90751 (-fpatchtable-function-entry broken on hppa-linux-gnu-gcc/hppa64-linux-gnu-gcc)

	PR target/90751
	* config/pa/pa-linux.h (ASM_DECLARE_FUNCTION_NAME): Update comment.
	Call pa_output_function_label>
	(TARGET_ASM_FUNCTION_PROLOGUE): define.
	* config/pa/pa-protos.h (pa_output_function_label): Declare.
	* config/pa/pa.c (pa_output_function_prologue): Add ATTRIBUTE_UNUSED
	to declaration.
	(pa_linux_output_function_prologue): Declare.
	(TARGET_ASM_FUNCTION_PROLOGUE): Delete define.
	(pa_output_function_label): New.
	(pa_output_function_prologue): Revise to use pa_output_function_label.
	(pa_linux_output_function_prologue): New.
	* config/pa/pa.h (TARGET_ASM_FUNCTION_PROLOGUE): Define.

From-SVN: r272059