re PR target/63223 ([avr] Make jumptables work with -Wl,--section-start,.text=)

re PR target/63223 ([avr] Make jumptables work with -Wl,--section-start,.text=)

gcc/
	PR target/63223
	* config/avr/avr.md (*tablejump.3byte-pc): New insn.
	(*tablejump): Restrict to !AVR_HAVE_EIJMP_EICALL.  Add void clobber.
	(casesi): Expand to *tablejump.3byte-pc if AVR_HAVE_EIJMP_EICALL.
libgcc/
	PR target/63223
	* config/avr/libgcc.S (__tablejump2__): Rewrite to use RAMPZ, ELPM
	and R24 as needed.  Make work for all devices and .text locations.
	(__do_global_ctors, __do_global_dtors): Use word addresses.
	(__tablejump__, __tablejump_elpm__): Remove functions.
	* t-avr (LIB1ASMFUNCS): Remove _tablejump, _tablejump_elpm.
	Add _tablejump2.
	(XICALL, XIJMP): New macros.

From-SVN: r215152