3psoccon.ads, [...]: Files added.

2003-10-21  Arnaud Charlet  <charlet@act-europe.fr>

	* 3psoccon.ads, 3veacodu.adb, 3vexpect.adb, 3vsoccon.ads,
	3vsocthi.adb, 3vsocthi.ads, 3vtrasym.adb, 3zsoccon.ads,
	3zsocthi.adb, 3zsocthi.ads, 50system.ads, 51system.ads,
	55system.ads, 56osinte.adb, 56osinte.ads, 56taprop.adb,
	56taspri.ads, 56tpopsp.adb, 57system.ads, 58system.ads,
	59system.ads, 5aml-tgt.adb, 5bml-tgt.adb, 5csystem.ads,
	5dsystem.ads, 5fosinte.adb, 5gml-tgt.adb, 5hml-tgt.adb,
	5isystem.ads, 5lparame.adb, 5msystem.ads, 5psystem.ads,
	5sml-tgt.adb, 5sosprim.adb, 5stpopsp.adb, 5tsystem.ads,
	5usystem.ads, 5vml-tgt.adb, 5vsymbol.adb, 5vtraent.adb,
	5vtraent.ads, 5wml-tgt.adb, 5xparame.ads, 5xsystem.ads,
	5xvxwork.ads, 5yparame.ads, 5ytiitho.adb, 5zinit.adb,
	5zml-tgt.adb, 5zparame.ads, 5ztaspri.ads, 5ztfsetr.adb,
	5zthrini.adb, 5ztiitho.adb, 5ztpopsp.adb, 7stfsetr.adb,
	7straces.adb, 7strafor.adb, 7strafor.ads, 7stratas.adb,
	a-excach.adb, a-exexda.adb, a-exexpr.adb, a-exextr.adb,
	a-exstat.adb, a-strsup.adb, a-strsup.ads, a-stwisu.adb,
	a-stwisu.ads, bld.adb, bld.ads, bld-io.adb,
	bld-io.ads, clean.adb, clean.ads, ctrl_c.c,
	erroutc.adb, erroutc.ads, errutil.adb, errutil.ads,
	err_vars.ads, final.c, g-arrspl.adb, g-arrspl.ads,
	g-boubuf.adb, g-boubuf.ads, g-boumai.ads, g-bubsor.adb,
	g-bubsor.ads, g-comver.adb, g-comver.ads, g-ctrl_c.ads,
	g-dynhta.adb, g-dynhta.ads, g-eacodu.adb, g-excact.adb,
	g-excact.ads, g-heasor.adb, g-heasor.ads, g-memdum.adb,
	g-memdum.ads, gnatclean.adb, gnatsym.adb, g-pehage.adb,
	g-pehage.ads, g-perhas.ads, gpr2make.adb, gpr2make.ads,
	gprcmd.adb, gprep.adb, gprep.ads, g-semaph.adb,
	g-semaph.ads, g-string.adb, g-string.ads, g-strspl.ads,
	g-wistsp.ads, i-vthrea.adb, i-vthrea.ads, i-vxwoio.adb,
	i-vxwoio.ads, Makefile.generic, Makefile.prolog, Makefile.rtl,
	prep.adb, prep.ads, prepcomp.adb, prepcomp.ads,
	prj-err.adb, prj-err.ads, s-boarop.ads, s-carsi8.adb,
	s-carsi8.ads, s-carun8.adb, s-carun8.ads, s-casi16.adb,
	s-casi16.ads, s-casi32.adb, s-casi32.ads, s-casi64.adb,
	s-casi64.ads, s-casuti.adb, s-casuti.ads, s-caun16.adb,
	s-caun16.ads, s-caun32.adb, s-caun32.ads, s-caun64.adb,
	s-caun64.ads, scng.adb, scng.ads, s-exnint.adb,
	s-exnllf.adb, s-exnlli.adb, s-expint.adb, s-explli.adb,
	s-geveop.adb, s-geveop.ads, s-hibaen.ads, s-htable.adb,
	s-htable.ads, sinput-c.adb, sinput-c.ads, s-memcop.ads,
	socket.c, s-purexc.ads, s-scaval.adb, s-stopoo.adb,
	s-strcom.adb, s-strcom.ads, s-strxdr.adb, s-rident.ads,
	s-thread.adb, s-thread.ads, s-tpae65.adb, s-tpae65.ads,
	s-tporft.adb, s-traent.adb, s-traent.ads, styleg.adb,
	styleg.ads, styleg-c.adb, styleg-c.ads, s-veboop.adb,
	s-veboop.ads, s-vector.ads, symbols.adb, symbols.ads,
	tb-alvms.c, tb-alvxw.c, tempdir.adb, tempdir.ads,
	vms_conv.ads, vms_conv.adb, vms_data.ads,
	vxaddr2line.adb: Files added. Merge with ACT tree.

	* 4dintnam.ads, 4mintnam.ads, 4uintnam.ads, 52system.ads,
	5dosinte.ads, 5etpopse.adb, 5mosinte.ads, 5qosinte.adb,
	5qosinte.ads, 5qstache.adb, 5qtaprop.adb, 5qtaspri.ads,
	5stpopse.adb, 5uintman.adb, 5uosinte.ads, adafinal.c,
	g-enblsp.adb, io-aux.c, scn-nlit.adb, scn-slit.adb,
	s-exnflt.ads, s-exngen.adb, s-exngen.ads, s-exnlfl.ads,
	s-exnlin.ads, s-exnsfl.ads, s-exnsin.ads, s-exnssi.ads,
	s-expflt.ads, s-expgen.adb, s-expgen.ads, s-explfl.ads,
	s-explin.ads, s-expllf.ads, s-expsfl.ads, s-expsin.ads,
	s-expssi.ads, style.adb: Files removed. Merge with ACT tree.

	* 1ic.ads, 31soccon.ads, 31soliop.ads, 3asoccon.ads,
	3bsoccon.ads, 3gsoccon.ads, 3hsoccon.ads, 3ssoccon.ads,
	3ssoliop.ads, 3wsoccon.ads, 3wsocthi.adb, 3wsocthi.ads,
	3wsoliop.ads, 41intnam.ads, 42intnam.ads, 4aintnam.ads,
	4cintnam.ads, 4gintnam.ads, 4hexcpol.adb, 4hintnam.ads,
	4lintnam.ads, 4nintnam.ads, 4ointnam.ads, 4onumaux.ads,
	4pintnam.ads, 4sintnam.ads, 4vcaldel.adb, 4vcalend.adb,
	4vintnam.ads, 4wexcpol.adb, 4wintnam.ads, 4zintnam.ads,
	51osinte.adb, 51osinte.ads, 52osinte.adb, 52osinte.ads,
	53osinte.ads, 54osinte.ads, 5aosinte.adb, 5aosinte.ads,
	5asystem.ads, 5ataprop.adb, 5atasinf.ads, 5ataspri.ads,
	5atpopsp.adb, 5avxwork.ads, 5bosinte.adb, 5bosinte.ads,
	5bsystem.ads, 5cosinte.ads, 5esystem.ads, 5fintman.adb,
	5fosinte.ads, 5fsystem.ads, 5ftaprop.adb, 5ftasinf.ads,
	5ginterr.adb, 5gintman.adb, 5gmastop.adb, 5gosinte.ads,
	5gproinf.ads, 5gsystem.ads, 5gtaprop.adb, 5gtasinf.ads,
	5gtpgetc.adb, 5hosinte.adb, 5hosinte.ads, 5hsystem.ads,
	5htaprop.adb, 5htaspri.ads, 5htraceb.adb, 5iosinte.adb,
	5itaprop.adb, 5itaspri.ads, 5ksystem.ads, 5kvxwork.ads,
	5lintman.adb, 5lml-tgt.adb, 5losinte.ads, 5lsystem.ads,
	5mvxwork.ads, 5ninmaop.adb, 5nintman.adb, 5nosinte.ads,
	5ntaprop.adb, 5ntaspri.ads, 5ointerr.adb, 5omastop.adb,
	5oosinte.adb, 5oosinte.ads, 5oosprim.adb, 5oparame.adb,
	5osystem.ads, 5otaprop.adb, 5otaspri.ads, 5posinte.ads,
	5posprim.adb, 5pvxwork.ads, 5sintman.adb, 5sosinte.adb,
	5sosinte.ads, 5ssystem.ads, 5staprop.adb, 5stasinf.ads,
	5staspri.ads, 5svxwork.ads, 5tosinte.ads, 5vasthan.adb,
	5vinmaop.adb, 5vinterr.adb, 5vintman.adb, 5vintman.ads,
	5vmastop.adb, 5vosinte.adb, 5vosinte.ads, 5vosprim.adb,
	5vsystem.ads, 5vtaprop.adb, 5vtaspri.ads, 5vtpopde.adb,
	5vtpopde.ads, 5wgloloc.adb, 5wintman.adb, 5wmemory.adb,
	5wosprim.adb, 5wsystem.ads, 5wtaprop.adb, 5wtaspri.ads,
	5ysystem.ads, 5zinterr.adb, 5zintman.adb, 5zosinte.adb,
	5zosinte.ads, 5zosprim.adb, 5zsystem.ads, 5ztaprop.adb,
	6vcpp.adb, 6vcstrea.adb, 6vinterf.ads, 7sinmaop.adb,
	7sintman.adb, 7sosinte.adb, 7sosprim.adb, 7staprop.adb,
	7staspri.ads, 7stpopsp.adb, 7straceb.adb, 9drpc.adb,
	a-caldel.adb, a-caldel.ads, a-charac.ads, a-colien.ads,
	a-comlin.adb, adaint.c, adaint.h, ada-tree.def,
	a-diocst.adb, a-diocst.ads, a-direio.adb, a-except.adb,
	a-except.ads, a-excpol.adb, a-exctra.adb, a-exctra.ads,
	a-filico.adb, a-interr.adb, a-intsig.adb, a-intsig.ads,
	ali.adb, ali.ads, ali-util.adb, ali-util.ads,
	a-ngcefu.adb, a-ngcoty.adb, a-ngelfu.adb, a-nudira.adb,
	a-nudira.ads, a-nuflra.adb, a-nuflra.ads, a-reatim.adb,
	a-reatim.ads, a-retide.ads, a-sequio.adb, a-siocst.adb,
	a-siocst.ads, a-ssicst.adb, a-ssicst.ads, a-strbou.adb,
	a-strbou.ads, a-strfix.adb, a-strmap.adb, a-strsea.ads,
	a-strunb.adb, a-strunb.ads, a-ststio.adb, a-stunau.adb,
	a-stunau.ads, a-stwibo.adb, a-stwibo.ads, a-stwifi.adb,
	a-stwima.adb, a-stwiun.adb, a-stwiun.ads, a-tags.adb,
	a-tags.ads, a-tasatt.adb, a-taside.adb, a-teioed.adb,
	a-textio.adb, a-textio.ads, a-tienau.adb, a-tifiio.adb,
	a-tiflau.adb, a-tiflio.adb, a-tigeau.adb, a-tigeau.ads,
	a-tiinau.adb, a-timoau.adb, a-tiocst.adb, a-tiocst.ads,
	atree.adb, atree.ads, a-witeio.adb, a-witeio.ads,
	a-wtcstr.adb, a-wtcstr.ads, a-wtdeio.adb, a-wtedit.adb,
	a-wtenau.adb, a-wtflau.adb, a-wtinau.adb, a-wtmoau.adb,
	bcheck.adb, binde.adb, bindgen.adb, bindusg.adb,
	checks.adb, checks.ads, cio.c, comperr.adb,
	comperr.ads, csets.adb, cstand.adb, cstreams.c,
	debug_a.adb, debug_a.ads, debug.adb, decl.c,
	einfo.adb, einfo.ads, errout.adb, errout.ads,
	eval_fat.adb, eval_fat.ads, exp_aggr.adb, expander.adb,
	expander.ads, exp_attr.adb, exp_ch11.adb, exp_ch13.adb,
	exp_ch2.adb, exp_ch3.adb, exp_ch3.ads, exp_ch4.adb,
	exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch7.ads,
	exp_ch8.adb, exp_ch9.adb, exp_code.adb, exp_dbug.adb,
	exp_dbug.ads, exp_disp.adb, exp_dist.adb, expect.c,
	exp_fixd.adb, exp_imgv.adb, exp_intr.adb, exp_pakd.adb,
	exp_prag.adb, exp_strm.adb, exp_strm.ads, exp_tss.adb,
	exp_tss.ads, exp_util.adb, exp_util.ads, exp_vfpt.adb,
	fe.h, fmap.adb, fmap.ads, fname.adb,
	fname.ads, fname-uf.adb, fname-uf.ads, freeze.adb,
	freeze.ads, frontend.adb, g-awk.adb, g-awk.ads,
	g-busora.adb, g-busora.ads, g-busorg.adb, g-busorg.ads,
	g-casuti.adb, g-casuti.ads, g-catiio.adb, g-catiio.ads,
	g-cgi.adb, g-cgi.ads, g-cgicoo.adb, g-cgicoo.ads,
	g-cgideb.adb, g-cgideb.ads, g-comlin.adb, g-comlin.ads,
	g-crc32.adb, g-crc32.ads, g-debpoo.adb, g-debpoo.ads,
	g-debuti.adb, g-debuti.ads, g-diopit.adb, g-diopit.ads,
	g-dirope.adb, g-dirope.ads, g-dyntab.adb, g-dyntab.ads,
	g-except.ads, g-exctra.adb, g-exctra.ads, g-expect.adb,
	g-expect.ads, g-hesora.adb, g-hesora.ads, g-hesorg.adb,
	g-hesorg.ads, g-htable.adb, g-htable.ads, gigi.h,
	g-io.adb, g-io.ads, g-io_aux.adb, g-io_aux.ads,
	g-locfil.adb, g-locfil.ads, g-md5.adb, g-md5.ads,
	gmem.c, gnat1drv.adb, gnatbind.adb, gnatchop.adb,
	gnatcmd.adb, gnatfind.adb, gnatkr.adb, gnatlbr.adb,
	gnatlink.adb, gnatls.adb, gnatmake.adb, gnatmem.adb,
	gnatname.adb, gnatprep.adb, gnatprep.ads, gnatpsta.adb,
	gnatxref.adb, g-os_lib.adb, g-os_lib.ads, g-regexp.adb,
	g-regexp.ads, g-regist.adb, g-regist.ads, g-regpat.adb,
	g-regpat.ads, g-soccon.ads, g-socket.adb, g-socket.ads,
	g-socthi.adb, g-socthi.ads, g-soliop.ads, g-souinf.ads,
	g-speche.adb, g-speche.ads, g-spipat.adb, g-spipat.ads,
	g-spitbo.adb, g-spitbo.ads, g-sptabo.ads, g-sptain.ads,
	g-sptavs.ads, g-table.adb, g-table.ads, g-tasloc.adb,
	g-tasloc.ads, g-thread.adb, g-thread.ads, g-traceb.adb,
	g-traceb.ads, g-trasym.adb, g-trasym.ads, hostparm.ads,
	i-c.ads, i-cobol.adb, i-cpp.adb, i-cstrea.ads,
	i-cstrin.adb, i-cstrin.ads, impunit.adb, init.c,
	inline.adb, interfac.ads, i-pacdec.ads, itypes.adb,
	itypes.ads, i-vxwork.ads, lang.opt, lang-specs.h,
	layout.adb, lib.adb, lib.ads, lib-list.adb,
	lib-load.adb, lib-load.ads, lib-sort.adb, lib-util.adb,
	lib-writ.adb, lib-writ.ads, lib-xref.adb, lib-xref.ads,
	link.c, live.adb, make.adb, make.ads,
	Makefile.adalib, Makefile.in, Make-lang.in, makeusg.adb,
	mdll.adb, mdll-fil.adb, mdll-fil.ads, mdll-utl.adb,
	mdll-utl.ads, memroot.adb, memroot.ads, memtrack.adb,
	misc.c, mkdir.c, mlib.adb, mlib.ads,
	mlib-fil.adb, mlib-fil.ads, mlib-prj.adb, mlib-prj.ads,
	mlib-tgt.adb, mlib-tgt.ads, mlib-utl.adb, mlib-utl.ads,
	namet.adb, namet.ads, namet.h, nlists.ads,
	nlists.h, nmake.adt, opt.adb, opt.ads,
	osint.adb, osint.ads, osint-b.adb, osint-c.adb,
	par.adb, par-ch10.adb, par-ch11.adb, par-ch2.adb,
	par-ch3.adb, par-ch4.adb, par-ch5.adb, par-ch6.adb,
	par-ch9.adb, par-endh.adb, par-labl.adb, par-load.adb,
	par-prag.adb, par-sync.adb, par-tchk.adb, par-util.adb,
	prj.adb, prj.ads, prj-attr.adb, prj-attr.ads,
	prj-com.adb, prj-com.ads, prj-dect.adb, prj-dect.ads,
	prj-env.adb, prj-env.ads, prj-ext.adb, prj-ext.ads,
	prj-makr.adb, prj-makr.ads, prj-nmsc.adb, prj-nmsc.ads,
	prj-pars.adb, prj-pars.ads, prj-part.adb, prj-part.ads,
	prj-pp.adb, prj-pp.ads, prj-proc.adb, prj-proc.ads,
	prj-strt.adb, prj-strt.ads, prj-tree.adb, prj-tree.ads,
	prj-util.adb, prj-util.ads, raise.c, raise.h,
	repinfo.adb, repinfo.h, restrict.adb, restrict.ads,
	rident.ads, rtsfind.adb, rtsfind.ads, s-addima.ads,
	s-arit64.adb, s-assert.adb, s-assert.ads, s-atacco.adb,
	s-atacco.ads, s-auxdec.adb, s-auxdec.ads, s-bitops.adb,
	scans.ads, scn.adb, scn.ads, s-crc32.adb,
	s-crc32.ads, s-direio.adb, sem.adb, sem.ads,
	sem_aggr.adb, sem_attr.adb, sem_attr.ads, sem_case.adb,
	sem_case.ads, sem_cat.adb, sem_cat.ads, sem_ch10.adb,
	sem_ch11.adb, sem_ch12.adb, sem_ch12.ads, sem_ch13.adb,
	sem_ch13.ads, sem_ch3.adb, sem_ch3.ads, sem_ch4.adb,
	sem_ch5.adb, sem_ch5.ads, sem_ch6.adb, sem_ch6.ads,
	sem_ch7.adb, sem_ch7.ads, sem_ch8.adb, sem_ch8.ads,
	sem_ch9.adb, sem_disp.adb, sem_disp.ads, sem_dist.adb,
	sem_elab.adb, sem_eval.adb, sem_eval.ads, sem_intr.adb,
	sem_maps.adb, sem_mech.adb, sem_prag.adb, sem_prag.ads,
	sem_res.adb, sem_res.ads, sem_type.adb, sem_type.ads,
	sem_util.adb, sem_util.ads, sem_warn.adb, s-errrep.adb,
	s-errrep.ads, s-exctab.adb, s-exctab.ads, s-exnint.ads,
	s-exnllf.ads, s-exnlli.ads, s-expint.ads, s-explli.ads,
	s-expuns.ads, s-fatflt.ads, s-fatgen.adb, s-fatgen.ads,
	s-fatlfl.ads, s-fatllf.ads, s-fatsfl.ads, s-fileio.adb,
	s-fileio.ads, s-finimp.adb, s-finimp.ads, s-finroo.adb,
	s-finroo.ads, sfn_scan.adb, s-gloloc.adb, s-gloloc.ads,
	s-imgdec.adb, s-imgenu.adb, s-imgrea.adb, s-imgwch.adb,
	sinfo.adb, sinfo.ads, s-inmaop.ads, sinput.adb,
	sinput.ads, sinput-d.adb, sinput-l.adb, sinput-l.ads,
	sinput-p.adb, sinput-p.ads, s-interr.adb, s-interr.ads,
	s-intman.ads, s-maccod.ads, s-mastop.adb, s-mastop.ads,
	s-memory.adb, s-memory.ads, snames.adb, snames.ads,
	snames.h, s-osprim.ads, s-parame.ads, s-parint.ads,
	s-pooloc.adb, s-pooloc.ads, s-poosiz.adb, sprint.adb,
	s-proinf.ads, s-scaval.ads, s-secsta.adb, s-secsta.ads,
	s-sequio.adb, s-shasto.adb, s-shasto.ads, s-soflin.ads,
	s-stache.adb, s-stache.ads, s-stalib.adb, s-stalib.ads,
	s-stoele.ads, s-stopoo.ads, s-stratt.adb, s-stratt.ads,
	s-strops.adb, s-strops.ads, s-taasde.adb, s-taasde.ads,
	s-tadeca.adb, s-tadeca.ads, s-tadert.adb, s-tadert.ads,
	s-taenca.adb, s-taenca.ads, s-taprob.adb, s-taprob.ads,
	s-taprop.ads, s-tarest.adb, s-tarest.ads, s-tasdeb.adb,
	s-tasdeb.ads, s-tasinf.adb, s-tasinf.ads, s-tasini.adb,
	s-tasini.ads, s-taskin.adb, s-taskin.ads, s-tasque.adb,
	s-tasque.ads, s-tasren.adb, s-tasren.ads, s-tasres.ads,
	s-tassta.adb, s-tassta.ads, s-tasuti.adb, s-tasuti.ads,
	s-tataat.adb, s-tataat.ads, s-tpinop.adb, s-tpinop.ads,
	s-tpoben.adb, s-tpoben.ads, s-tpobop.adb, s-tpobop.ads,
	s-tposen.adb, s-tposen.ads, s-traceb.adb, s-traceb.ads,
	stringt.adb, stringt.ads, stringt.h, style.ads,
	stylesw.adb, stylesw.ads, s-unstyp.ads, s-vaflop.ads,
	s-valrea.adb, s-valuti.adb, s-vercon.adb, s-vmexta.adb,
	s-wchcnv.ads, s-wchcon.ads, s-widcha.adb, switch.adb,
	switch.ads, switch-b.adb, switch-c.adb, switch-m.adb,
	s-wwdcha.adb, s-wwdwch.adb, sysdep.c, system.ads,
	table.adb, table.ads, targparm.adb, targparm.ads,
	targtyps.c, tbuild.adb, tbuild.ads, tracebak.c,
	trans.c, tree_io.adb, treepr.adb, treeprs.adt,
	ttypes.ads, types.ads, types.h, uintp.adb,
	uintp.ads, uintp.h, uname.adb, urealp.adb,
	urealp.ads, urealp.h, usage.adb, utils2.c,
	utils.c, validsw.adb, validsw.ads, widechar.adb,
	xeinfo.adb, xnmake.adb, xref_lib.adb, xref_lib.ads,
	xr_tabls.adb, xr_tabls.ads, xtreeprs.adb, xsnames.adb,
	einfo.h, sinfo.h, treeprs.ads, nmake.ads, nmake.adb,
	gnatvsn.ads: Merge with ACT tree.

	* gnatvsn.adb: Rewritten in a simpler and more efficient way.

From-SVN: r72751

1 files changed, 135 insertions, 85 deletions

diff --git a/gcc/ada/misc.c b/gcc/ada/misc.c
index 45f069d..83907b9 100644
--- a/gcc/ada/misc.c
+++ b/gcc/ada/misc.c
@@ -6,7 +6,6 @@
  *                                                                          *
  *                           C Implementation File                          *
  *                                                                          *
- *                                                                          *
  *          Copyright (C) 1992-2003 Free Software Foundation, Inc.          *
  *                                                                          *
  * GNAT is free software;  you can  redistribute it  and/or modify it under *
@@ -80,19 +79,25 @@
 
 extern FILE *asm_out_file;
 
-static size_t gnat_tree_size		PARAMS ((enum tree_code));
-static bool gnat_init			PARAMS ((void));
+/* The largest alignment, in bits, that is needed for using the widest
+   move instruction.  */
+unsigned int largest_move_alignment;
+
+static size_t gnat_tree_size		(enum tree_code);
+static bool gnat_init			(void);
+static void gnat_finish_incomplete_decl	(tree);
 static unsigned int gnat_init_options	(unsigned int, const char **);
-static int gnat_handle_option (size_t scode, const char *arg, int value);
-static HOST_WIDE_INT gnat_get_alias_set	PARAMS ((tree));
-static void gnat_print_decl		PARAMS ((FILE *, tree, int));
-static void gnat_print_type		PARAMS ((FILE *, tree, int));
-static const char *gnat_printable_name	PARAMS  ((tree, int));
-static tree gnat_eh_runtime_type	PARAMS ((tree));
-static int gnat_eh_type_covers		PARAMS ((tree, tree));
-static void gnat_parse_file		PARAMS ((int));
-static rtx gnat_expand_expr		PARAMS ((tree, rtx, enum machine_mode,
-						 int));
+static int gnat_handle_option		(size_t, const char *, int);
+static HOST_WIDE_INT gnat_get_alias_set	(tree);
+static void gnat_print_decl		(FILE *, tree, int);
+static void gnat_print_type		(FILE *, tree, int);
+static const char *gnat_printable_name	(tree, int);
+static tree gnat_eh_runtime_type	(tree);
+static int gnat_eh_type_covers		(tree, tree);
+static void gnat_parse_file		(int);
+static rtx gnat_expand_expr		(tree, rtx, enum machine_mode, int);
+static void internal_error_function	(const char *, va_list *);
+static void gnat_adjust_rli		(record_layout_info);
 
 /* Structure giving our language-specific hooks.  */
 
@@ -180,7 +185,10 @@ const char *const tree_code_name[] = {
 };
 #undef DEFTREECODE
 
-/* Command-line argc and argv.  */
+/* Command-line argc and argv.
+   These variables are global, since they are imported and used in
+   back_end.adb  */
+
 unsigned int save_argc;
 const char **save_argv;
 
@@ -189,19 +197,16 @@ const char **save_argv;
 extern int gnat_argc;
 extern char **gnat_argv;
 
-static void internal_error_function	PARAMS ((const char *, va_list *));
-static void gnat_adjust_rli		PARAMS ((record_layout_info));
 
 /* Declare functions we use as part of startup.  */
-extern void __gnat_initialize	PARAMS((void));
-extern void adainit		PARAMS((void));
-extern void _ada_gnat1drv	PARAMS((void));
+extern void __gnat_initialize	(void);
+extern void adainit		(void);
+extern void _ada_gnat1drv	(void);
 
 /* The parser for the language.  For us, we process the GNAT tree.  */
 
 static void
-gnat_parse_file (set_yydebug)
-     int set_yydebug ATTRIBUTE_UNUSED;
+gnat_parse_file (int set_yydebug ATTRIBUTE_UNUSED)
 {
   /* call the target specific initializations */
   __gnat_initialize();
@@ -223,14 +228,21 @@ gnat_parse_file (set_yydebug)
 static int
 gnat_handle_option (size_t scode, const char *arg, int value ATTRIBUTE_UNUSED)
 {
+  const struct cl_option *option = &cl_options[scode];
   enum opt_code code = (enum opt_code) scode;
   char *q;
   unsigned int i;
 
+  if (arg == NULL && (option->flags & (CL_JOINED | CL_SEPARATE)))
+    {
+      error ("missing argument to \"-%s\"", option->opt_text);
+      return 1;
+    }
+
   switch (code)
     {
     default:
-      abort();
+      abort ();
 
     case OPT_I:
       q = xmalloc (sizeof("-I") + strlen (arg));
@@ -240,8 +252,17 @@ gnat_handle_option (size_t scode, const char *arg, int value ATTRIBUTE_UNUSED)
       gnat_argc++;
       break;
 
-    case OPT_Wall:
       /* All front ends are expected to accept this.  */
+    case OPT_Wall:
+      /* These are used in the GCC Makefile.  */
+    case OPT_Wmissing_prototypes:
+    case OPT_Wstrict_prototypes:
+    case OPT_Wwrite_strings:
+    case OPT_Wno_long_long:
+      break;
+
+      /* This is handled by the front-end.  */
+    case OPT_nostdinc:
       break;
 
     case OPT_fRTS:
@@ -251,10 +272,11 @@ gnat_handle_option (size_t scode, const char *arg, int value ATTRIBUTE_UNUSED)
 
     case OPT_gant:
       warning ("`-gnat' misspelled as `-gant'");
-      break;
+ 
+      /* ... fall through ... */
 
     case OPT_gnat:
-      /* Recopy the switches without the 'gnat' prefix */
+      /* Recopy the switches without the 'gnat' prefix.  */
       gnat_argv[gnat_argc] = xmalloc (strlen (arg) + 2);
       gnat_argv[gnat_argc][0] = '-';
       strcpy (gnat_argv[gnat_argc] + 1, arg);
@@ -295,9 +317,7 @@ gnat_init_options (unsigned int argc, const char **argv)
 /* Here is the function to handle the compiler error processing in GCC.  */
 
 static void
-internal_error_function (msgid, ap)
-     const char *msgid;
-     va_list *ap;
+internal_error_function (const char *msgid, va_list *ap)
 {
   char buffer[1000];		/* Assume this is big enough.  */
   char *p;
@@ -321,13 +341,15 @@ internal_error_function (msgid, ap)
   Compiler_Abort (fp, -1);
 }
 
-/* Langhook for tree_size: determine size of our 'x' and 'c' nodes.  */
+/* Langhook for tree_size: Determine size of our 'x' and 'c' nodes.  */
+
 static size_t
 gnat_tree_size (enum tree_code code)
 {
   switch (code)
     {
-    case GNAT_LOOP_ID:	return sizeof (struct tree_loop_id);
+    case GNAT_LOOP_ID:
+      return sizeof (struct tree_loop_id);
     default:
       abort ();
     }
@@ -340,11 +362,7 @@ static bool
 gnat_init ()
 {
   /* Performs whatever initialization steps needed by the language-dependent
-     lexical analyzer.
-
-     Define the additional tree codes here.  This isn't the best place to put
-     it, but it's where g++ does it.  */
-
+     lexical analyzer.  */
   gnat_init_decl_processing ();
 
   /* Add the input filename as the last argument.  */
@@ -362,7 +380,35 @@ gnat_init ()
   return true;
 }
 
-/* If we are using the GCC mechanism for to process exception handling, we
+/* This function is called indirectly from toplev.c to handle incomplete
+   declarations, i.e. VAR_DECL nodes whose DECL_SIZE is zero.  To be precise,
+   compile_file in toplev.c makes an indirect call through the function pointer
+   incomplete_decl_finalize_hook which is initialized to this routine in
+   init_decl_processing.  */
+
+static void
+gnat_finish_incomplete_decl (tree dont_care ATTRIBUTE_UNUSED)
+{
+  gigi_abort (202);
+}
+
+/* Compute the alignment of the largest mode that can be used for copying
+   objects.  */
+
+void
+gnat_compute_largest_alignment ()
+{
+  enum machine_mode mode;
+
+  for (mode = GET_CLASS_NARROWEST_MODE (MODE_INT); mode != VOIDmode;
+       mode = GET_MODE_WIDER_MODE (mode))
+    if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
+      largest_move_alignment = MIN (BIGGEST_ALIGNMENT,
+				    MAX (largest_move_alignment,
+					 GET_MODE_ALIGNMENT (mode)));
+}
+
+/* If we are using the GCC mechanism to process exception handling, we
    have to register the personality routine for Ada and to initialize
    various language dependent hooks.  */
 
@@ -376,10 +422,28 @@ gnat_init_gcc_eh ()
   if (No_Exception_Handlers_Set ())
     return;
 
+  /* Tell GCC we are handling cleanup actions through exception propagation.
+     This opens possibilities that we don't take advantage of yet, but is
+     nonetheless necessary to ensure that fixup code gets assigned to the
+     right exception regions.  */
+  using_eh_for_cleanups ();
+
   eh_personality_libfunc = init_one_libfunc ("__gnat_eh_personality");
   lang_eh_type_covers = gnat_eh_type_covers;
   lang_eh_runtime_type = gnat_eh_runtime_type;
+
+  /* Turn on -fexceptions and -fnon-call-exceptions. The first one triggers
+     the generation of the necessary exception runtime tables. The second one
+     is useful for two reasons: 1/ we map some asynchronous signals like SEGV
+     to exceptions, so we need to ensure that the insns which can lead to such
+     signals are correctly attached to the exception region they pertain to,
+     2/ Some calls to pure subprograms are handled as libcall blocks and then
+     marked as "cannot trap" if the flag is not set (see emit_libcall_block).
+     We should not let this be since it is possible for such calls to actually
+     raise in Ada.  */
+
   flag_exceptions = 1;
+  flag_non_call_exceptions = 1;
 
   init_eh ();
 #ifdef DWARF2_UNWIND_INFO
@@ -388,13 +452,10 @@ gnat_init_gcc_eh ()
 #endif
 }
 
-/* Hooks for print-tree.c:  */
+/* Language hooks, first one to print language-specific items in a DECL.  */
 
 static void
-gnat_print_decl (file, node, indent)
-     FILE *file;
-     tree node;
-     int indent;
+gnat_print_decl (FILE *file, tree node, int indent)
 {
   switch (TREE_CODE (node))
     {
@@ -414,10 +475,7 @@ gnat_print_decl (file, node, indent)
 }
 
 static void
-gnat_print_type (file, node, indent)
-     FILE *file;
-     tree node;
-     int indent;
+gnat_print_type (FILE *file, tree node, int indent)
 {
   switch (TREE_CODE (node))
     {
@@ -466,9 +524,7 @@ gnat_print_type (file, node, indent)
 }
 
 static const char *
-gnat_printable_name (decl, verbosity)
-     tree decl;
-     int verbosity ATTRIBUTE_UNUSED;
+gnat_printable_name (tree decl, int verbosity ATTRIBUTE_UNUSED)
 {
   const char *coded_name = IDENTIFIER_POINTER (DECL_NAME (decl));
   char *ada_name = (char *) ggc_alloc (strlen (coded_name) * 2 + 60);
@@ -482,18 +538,13 @@ gnat_printable_name (decl, verbosity)
    here are TRANSFORM_EXPR, ALLOCATE_EXPR, USE_EXPR and NULL_EXPR.  */
 
 static rtx
-gnat_expand_expr (exp, target, tmode, modifier)
-     tree exp;
-     rtx target;
-     enum machine_mode tmode;
-     int modifier;  /* Actually an enum expand_modifier.  */
+gnat_expand_expr (tree exp, rtx target, enum machine_mode tmode, int modifier)
 {
   tree type = TREE_TYPE (exp);
   tree new;
   rtx result;
 
   /* Update EXP to be the new expression to expand.  */
-
   switch (TREE_CODE (exp))
     {
     case TRANSFORM_EXPR:
@@ -561,18 +612,34 @@ gnat_expand_expr (exp, target, tmode, modifier)
    that will pad the record at the end.  */
 
 static void
-gnat_adjust_rli (rli)
-     record_layout_info rli ATTRIBUTE_UNUSED;
+gnat_adjust_rli (record_layout_info rli ATTRIBUTE_UNUSED)
 {
-  /* This function has no actual effect; record_align should already
+#if 0
+  /* ??? This code seems to have no actual effect; record_align should already
      reflect the largest alignment desired by a field.  jason 2003-04-01  */
+  unsigned int record_align = rli->unpadded_align;
+  tree field;
+
+  /* If an alignment has been specified, don't use anything larger unless we
+     have to.  */
+  if (TYPE_ALIGN (rli->t) != 0 && TYPE_ALIGN (rli->t) < record_align)
+    record_align = MAX (rli->record_align, TYPE_ALIGN (rli->t));
+
+  /* If any fields have variable size, we need to force the record to be at
+     least as aligned as the alignment of that type.  */
+  for (field = TYPE_FIELDS (rli->t); field; field = TREE_CHAIN (field))
+    if (TREE_CODE (DECL_SIZE_UNIT (field)) != INTEGER_CST)
+      record_align = MAX (record_align, DECL_ALIGN (field));
+
+  if (TYPE_PACKED (rli->t))
+    rli->record_align = record_align;
+#endif
 }
 
 /* Make a TRANSFORM_EXPR to later expand GNAT_NODE into code.  */
 
 tree
-make_transform_expr (gnat_node)
-     Node_Id gnat_node;
+make_transform_expr (Node_Id gnat_node)
 {
   tree gnu_result = build (TRANSFORM_EXPR, void_type_node);
 
@@ -585,8 +652,7 @@ make_transform_expr (gnat_node)
    here that a __builtin_setjmp was done to BUF.  */
 
 void
-update_setjmp_buf (buf)
-     tree buf;
+update_setjmp_buf (tree buf)
 {
   enum machine_mode sa_mode = Pmode;
   rtx stack_save;
@@ -621,8 +687,7 @@ update_setjmp_buf (buf)
 /* Map compile-time to run-time tree for GCC exception handling scheme.  */
 
 static tree
-gnat_eh_runtime_type (type)
-     tree type;
+gnat_eh_runtime_type (tree type)
 {
   return type;
 }
@@ -631,8 +696,7 @@ gnat_eh_runtime_type (type)
    the exception handling part of the back-end.  */
 
 static int
-gnat_eh_type_covers (a, b)
-     tree a, b;
+gnat_eh_type_covers (tree a, tree b)
 {
   /* a catches b if they represent the same exception id or if a
      is an "others". 
@@ -647,8 +711,7 @@ gnat_eh_type_covers (a, b)
    This improves the debugger's ability to display the value.  */
 
 void
-adjust_decl_rtl (decl)
-     tree decl;
+adjust_decl_rtl (tree decl)
 {
   tree new_type;
 
@@ -706,8 +769,7 @@ adjust_decl_rtl (decl)
 /* Record the current code position in GNAT_NODE.  */
 
 void
-record_code_position (gnat_node)
-     Node_Id gnat_node;
+record_code_position (Node_Id gnat_node)
 {
   if (global_bindings_p ())
     {
@@ -728,8 +790,7 @@ record_code_position (gnat_node)
 /* Insert the code for GNAT_NODE at the position saved for that node.  */
 
 void
-insert_code_for (gnat_node)
-     Node_Id gnat_node;
+insert_code_for (Node_Id gnat_node)
 {
   if (global_bindings_p ())
     {
@@ -757,8 +818,7 @@ insert_code_for (gnat_node)
 /* Get the alias set corresponding to a type or expression.  */
 
 static HOST_WIDE_INT
-gnat_get_alias_set (type)
-     tree type;
+gnat_get_alias_set (tree type)
 {
   /* If this is a padding type, use the type of the first field.  */
   if (TREE_CODE (type) == RECORD_TYPE
@@ -779,8 +839,7 @@ gnat_get_alias_set (type)
    default.  */
 
 int
-default_pass_by_ref (gnu_type)
-     tree gnu_type;
+default_pass_by_ref (tree gnu_type)
 {
   CUMULATIVE_ARGS cum;
 
@@ -808,8 +867,7 @@ default_pass_by_ref (gnu_type)
    it should be passed by reference. */
 
 int
-must_pass_by_ref (gnu_type)
-     tree gnu_type;
+must_pass_by_ref (tree gnu_type)
 {
   /* We pass only unconstrained objects, those required by the language
      to be passed by reference, and objects of variable size.  The latter
@@ -821,11 +879,3 @@ must_pass_by_ref (gnu_type)
 	  || (TYPE_SIZE (gnu_type) != 0
 	      && TREE_CODE (TYPE_SIZE (gnu_type)) != INTEGER_CST));
 }
-
-/* This function returns the version of GCC being used.  Here it's GCC 3.  */
-
-int
-gcc_version ()
-{
-  return 3;
-}