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, 287 insertions, 52 deletions

diff --git a/gcc/ada/opt.ads b/gcc/ada/opt.ads
index 83601c4..356ed02 100644
--- a/gcc/ada/opt.ads
+++ b/gcc/ada/opt.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---          Copyright (C) 1992-2002, Free Software Foundation, Inc.         --
+--          Copyright (C) 1992-2003, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -36,9 +36,12 @@
 --  the binder, gnatmake or other GNAT tools. The comments indicate which
 --  options are used by which programs (GNAT, GNATBIND, GNATMAKE, etc).
 
-with Hostparm;       use Hostparm;
-with Types;          use Types;
+with Gnatvsn;  use Gnatvsn;
+with Hostparm; use Hostparm;
+with Types;    use Types;
+
 with System.WCh_Con; use System.WCh_Con;
+with GNAT.Strings;   use GNAT.Strings;
 
 package Opt is
 
@@ -115,10 +118,23 @@ package Opt is
    --  GNAT
    --  Enable assertions made using pragma Assert.
 
+   ASIS_Mode : Boolean := False;
+   --  GNAT
+   --  Enable semantic checks and tree transformations that are important
+   --  for ASIS but that are usually skipped if Operating_Mode is set to
+   --  Check_Semantics. This flag does not have the corresponding option to set
+   --  it ON. It is set ON when Tree_Output is set ON, it can also be set ON
+   --  from the code of GNSA-based tool (a client may need to set ON the
+   --  Back_Annotate_Rep_Info flag in this case. At the moment this does not
+   --  make very much sense, because GNSA can not do back annotation).
+
    Back_Annotate_Rep_Info : Boolean := False;
    --  GNAT
-   --  If set True (by use of -gnatB), enables back annotation of
-   --  representation information by gigi, even in -gnatc mode.
+   --  If set True, enables back annotation of representation information
+   --  by gigi, even in -gnatc mode. This is set True by the use of -gnatR
+   --  (list representation information) or -gnatt (generate tree). It is
+   --  also set true if certain Unchecked_Conversion instantiations require
+   --  checking based on annotated values.
 
    Bind_Alternate_Main_Name : Boolean := False;
    --  GNATBIND
@@ -139,6 +155,11 @@ package Opt is
    --  Set to True to skip compile and link steps
    --  (except when Compile_Only and/or Link_Only are True).
 
+   Blank_Deleted_Lines : Boolean := False;
+   --  GNAT, GNATPREP
+   --  Output empty lines for each line of preprocessed input that is deleted
+   --  in the output, including preprocessor lines starting with a '#'.
+
    Brief_Output : Boolean := False;
    --  GNAT, GNATBIND
    --  Force brief error messages to standard error, even if verbose mode is
@@ -188,21 +209,32 @@ package Opt is
    --  Set to True to enable checking for unused withs, and also the case
    --  of withing a package and using none of the entities in the package.
 
-   Compile_Only : Boolean := False;
-   --  GNATMAKE
-   --  Set to True to skip bind and link steps (except when Bind_Only is True)
+   Comment_Deleted_Lines : Boolean := False;
+   --  GNATPREP
+   --  True if source lines removed by the preprocessor should be commented
+   --  in the output file.
 
-   Compress_Debug_Names : Boolean := False;
-   --  GNAT
-   --  Set to True if the option to compress debug information is set (-gnatC)
+   Compile_Only : Boolean := False;
+   --  GNATMAKE, GNATCLEAN
+   --  GNATMAKE: set to True to skip bind and link steps (except when
+   --            Bind_Only is True).
+   --  GNATCLEAN: set to True to only the files produced by the compiler are to
+   --             be deleted, but not the library files or executable files.
 
    Config_File : Boolean := True;
    --  GNAT
    --  Set to False to inhibit reading and processing of gnat.adc file
 
-   Config_File_Name : String_Ptr := null;
+   Config_File_Names : String_List_Access := null;
    --  GNAT
-   --  File name of configuration pragmas file (given by switch -gnatec)
+   --  Names of configuration pragmas files (given by switches -gnatec)
+
+   Configurable_Run_Time_Mode : Boolean := False;
+   --  GNAT, GNATBIND
+   --  Set True if the compiler is operating in configurable run-time mode.
+   --  This happens if the flag Targparm.Configurable_Run_TimeMode_On_Target
+   --  is set True, or if pragma No_Run_Time is used. See the spec of Rtsfind
+   --  for details on the handling of the latter pragma.
 
    Constant_Condition_Warnings : Boolean := False;
    --  GNAT
@@ -278,10 +310,40 @@ package Opt is
    --  Set to True if -gnato (enable overflow checks) switch is set,
    --  but not -gnatp.
 
-   type Exception_Mechanism_Type is (Setjmp_Longjmp, Front_End_ZCX, GCC_ZCX);
+   Exception_Locations_Suppressed : Boolean := False;
+   --  GNAT
+   --  This flag is set True if a Suppress_Exception_Locations configuration
+   --  pragma is currently active.
+
+   type Exception_Mechanism_Type is
+   --  Determines the handling of exceptions. See Exp_Ch11 for details
+   --
+     (Front_End_Setjmp_Longjmp_Exceptions,
+      --  Exceptions use setjmp/longjmp generated explicitly by the
+      --  front end (this includes gigi or other equivalent parts of
+      --  the code generator). AT END handlers are converted into
+      --  exception handlers by the front end in this mode.
+
+      Front_End_ZCX_Exceptions,
+      --  Exceptions use the zero cost table mechanism with explicit
+      --  tables and exception regions generated by the front end.
+      --  AT END handlers are converted into exception handlers by
+      --  the front end in this mode.
+
+      Back_End_ZCX_Exceptions);
+      --  Exceptions are handled by the back end. The front end simply
+      --  generates the handlers as they appear in the source, and AT
+      --  END handlers are left untouched (they are not converted into
+      --  exception handlers when operating in this mode. Note that the
+      --  name includes ZCX, since the expectation is that the back end
+      --  mechanism will in fact be a ZCX approach, but nothing in the
+      --  compiler depends on this, so for example if GNAT is run with
+      --  a version of GCC configured for setjmp/longjmp exception handling,
+      --  then everything will work fine.
    pragma Convention (C, Exception_Mechanism_Type);
 
-   Exception_Mechanism : Exception_Mechanism_Type := Setjmp_Longjmp;
+   Exception_Mechanism : Exception_Mechanism_Type :=
+                           Front_End_Setjmp_Longjmp_Exceptions;
    --  GNAT
    --  Set to the appropriate value depending on the default as given in
    --  system.ads (ZCX_By_Default, GCC_ZCX_Support, Front_End_ZCX_Support)
@@ -343,6 +405,11 @@ package Opt is
    --  Force generation of ALI file even if errors are encountered.
    --  Also forces generation of tree file if -gnatt is also set.
 
+   Force_Checking_Of_Elaboration_Flags : Boolean := False;
+   --  GNATBIND
+   --  True if binding with forced checking of the elaboration flags
+   --  (-F switch set).
+
    Force_Compilations : Boolean := False;
    --  GNATMAKE
    --  Set to force recompilations even when the objects are up-to-date.
@@ -354,12 +421,19 @@ package Opt is
    --  some future release. It is no longer documented. The proper way
    --  to get this effect is to use -gnatE and suppress elab checks.
 
+   Full_Path_Name_For_Brief_Errors : Boolean := False;
+   --  GNAT, GNATMAKE, GNATCLEAN
+   --  When True, in Brief_Output mode, each error message line
+   --  will start with the full path name of the source.
+   --  When False, only the file name without directory information
+   --  is used.
+
    Full_List : Boolean := False;
    --  GNAT
    --  Set True to generate full source listing with embedded errors
 
    Global_Discard_Names : Boolean := False;
-   --  GNAT
+   --  GNAT, GNATBIND
    --  Set true if a pragma Discard_Names applies to the current unit
 
    GNAT_Mode : Boolean := False;
@@ -405,7 +479,7 @@ package Opt is
    --  controlled by use of -gnatwp/-gnatwP.
 
    Init_Or_Norm_Scalars : Boolean := False;
-   --  GNAT
+   --  GNAT, GANTBIND
    --  Set True if a pragma Initialize_Scalars applies to the current unit.
    --  Also set True if a pragma Normalize_Scalars applies.
 
@@ -414,20 +488,23 @@ package Opt is
    --  Set True if a pragma Initialize_Scalars applies to the current unit.
    --  Note that Init_Or_Norm_Scalars is also set to True if this is True.
 
-   Initialize_Scalars_Mode : Character := 'I';
-   --  GNATBIND
-   --  Set to 'I' for -Sin (default), 'L' for -Slo, 'H' for -Shi, 'X' for -Sxx
-
-   Initialize_Scalars_Val : String (1 .. 2);
+   Initialize_Scalars_Mode1 : Character := 'I';
+   Initialize_Scalars_Mode2 : Character := 'N';
    --  GNATBIND
-   --  Valid only if Initialize_Scalars_Mode is set to 'X' (-Shh). Contains
-   --  the two hex bytes from the -Shh switch.
+   --  Set to two characters from -S switch (IN/LO/HI/EV/xx). The default
+   --  is IN (invalid values), used if no -S switch is used.
 
    Inline_Active : Boolean := False;
    --  GNAT
    --  Set True to activate pragma Inline processing across modules. Default
    --  for now is not to inline across module boundaries.
 
+   Interface_Library_Unit : Boolean := False;
+   --  GNATBIND
+   --  Set to True to indicate that at least one ALI file is an interface ALI:
+   --  then elaboration flag checks are to be generated in the binder
+   --  generated file.
+
    Front_End_Inlining : Boolean := False;
    --  GNAT
    --  Set True to activate inlining by front-end expansion.
@@ -486,6 +563,17 @@ package Opt is
    --  file) instead of stdout. For example, if file x.adb is compiled
    --  using -gnatR2s then representation info is written to x.adb.ref.
 
+   List_Representation_Info_Mechanisms : Boolean := False;
+   --  GNAT
+   --  Set true by -gnatRm switch. Causes information on mechanisms to
+   --  be included in the representation output information.
+
+   List_Preprocessing_Symbols : Boolean := False;
+   --  GNAT, GNATPREP
+   --  Set to True if symbols for preprocessing a source are to be listed
+   --  before preprocessing occurs. Set to True by switch -s of gnatprep
+   --  or -s in preprocessing data file for the compiler.
+
    type Creat_Repinfo_File_Proc is access procedure (Src : File_Name_Type);
    type Write_Repinfo_Line_Proc is access procedure (Info : String);
    type Close_Repinfo_File_Proc is access procedure;
@@ -503,17 +591,28 @@ package Opt is
    --  unwanted units in the ASIS build.
 
    Locking_Policy : Character := ' ';
-   --  GNAT
+   --  GNAT, GNATBIND
    --  Set to ' ' for the default case (no locking policy specified).
    --  Reset to first character (uppercase) of locking policy name if a
    --  valid pragma Locking_Policy is encountered.
 
+   Locking_Policy_Sloc : Source_Ptr := No_Location;
+   --  GNAT, GNATBIND
+   --  Remember location of previous Locking_Policy pragma. This is used
+   --  for inconsistency error messages. A value of System_Location is
+   --  used if the policy is set in package System.
+
    Look_In_Primary_Dir : Boolean := True;
-   --  GNAT, GNATBIND, GNATMAKE
+   --  GNAT, GNATBIND, GNATMAKE, GNATCLEAN
    --  Set to False if a -I- was present on the command line.
    --  When True we are allowed to look in the primary directory to locate
    --  other source or library files.
 
+   Make_Steps : Boolean := False;
+   --  GNATMAKE
+   --  Set to True when either Compile_Only, Bind_Only or Link_Only is
+   --  set to True.
+
    Mapping_File_Name : String_Ptr := null;
    --  GNAT
    --  File name of mapping between unit names, file names and path names.
@@ -521,7 +620,8 @@ package Opt is
 
    Maximum_Errors : Int := 9999;
    --  GNAT, GNATBIND
-   --  Maximum number of errors before compilation is terminated
+   --  Maximum default number of errors before compilation is terminated.
+   --  Can be overridden using -gnatm (GNAT) or -m (GNATBIND) switch.
 
    Maximum_File_Name_Length : Int;
    --  GNAT, GNATBIND
@@ -551,15 +651,19 @@ package Opt is
    --  Set to True if compilation/binding of a program without main
    --  subprogram requested.
 
+   No_Run_Time_Mode : Boolean := False;
+   --  GNAT, GNATBIND
+   --  This flag is set True if a No_Run_Time pragma is encountered. See
+   --  spec of Rtsfind for a full description of handling of this pragma.
+
    Normalize_Scalars : Boolean := False;
-   --  GNAT
+   --  GNAT, GNATBIND
    --  Set True if a pragma Normalize_Scalars applies to the current unit.
    --  Note that Init_Or_Norm_Scalars is also set to True if this is True.
 
-   No_Run_Time : Boolean := False;
-   --  GNAT
-   --  Set True if a valid pragma No_Run_Time is processed or if the
-   --  flag Targparm.High_Integrity_Mode_On_Target is set True.
+   Object_Directory_Present : Boolean := False;
+   --  GNATMAKE
+   --  Set to True when an object directory is specified with option -D
 
    type Operating_Mode_Type is (Check_Syntax, Check_Semantics, Generate_Code);
    Operating_Mode : Operating_Mode_Type := Generate_Code;
@@ -568,9 +672,19 @@ package Opt is
    --  code, which runs the parser, semantics and backend. Switches can be
    --  used to set syntax checking only mode, or syntax and semantics checking
    --  only mode. Operating_Mode can also be modified as a result of detecting
-   --  errors during the compilation process. In particular if any error is
-   --  detected then this flag is reset from Generate_Code to Check_Semantics
-   --  after generating an error message.
+   --  errors during the compilation process. In particular if any serious
+   --  error is detected then this flag is reset from Generate_Code to
+   --  Check_Semantics after generating an error message.
+
+   Original_Operating_Mode : Operating_Mode_Type := Generate_Code;
+   --  GNAT
+   --  Indicates the original operating mode of the compiler as set by
+   --  compiler options. This is identical to Operating_Mode except that
+   --  this is not affected by errors.
+
+   Optimization_Level : Int;
+   pragma Import (C, Optimization_Level, "optimize");
+   --  This constant reflects the optimization level (0,1,2 for -O0,-O1,-O2)
 
    Output_File_Name_Present : Boolean := False;
    --  GNATBIND, GNAT, GNATMAKE
@@ -596,6 +710,10 @@ package Opt is
    --  Set to True if polling for asynchronous abort is enabled by using
    --  the -gnatP option for GNAT.
 
+   Preprocessing_Data_File : String_Ptr := null;
+   --  GNAT
+   --  Set by switch -gnatep=. The file name of the prepocessing data file.
+
    Print_Generated_Code : Boolean := False;
    --  GNAT
    --  Set to True to enable output of generated code in source form. This
@@ -607,20 +725,43 @@ package Opt is
    --  built for imported subprograms. Set True if a Propagate_Exceptions
    --  pragma applies to the extended main unit.
 
-   Queuing_Policy : Character := ' ';
+   type Usage is (Unknown, Not_In_Use, In_Use);
+   Project_File_In_Use : Usage := Unknown;
    --  GNAT
+   --  Indicates if a project file is used or not.
+   --  Set to In_Use by the first SFNP pragma.
+
+   Queuing_Policy : Character := ' ';
+   --  GNAT, GNATBIND
    --  Set to ' ' for the default case (no queuing policy specified).
    --  Reset to first character (uppercase) of locking policy name if a valid
    --  Queuing_Policy pragma is encountered.
 
+   Queuing_Policy_Sloc : Source_Ptr := No_Location;
+   --  GNAT, GNATBIND
+   --  Remember location of previous Queuing_Policy pragma. This is used
+   --  for inconsistency error messages. A value of System_Location is
+   --  used if the policy is set in package System.
+
    Quiet_Output : Boolean := False;
-   --  GNATMAKE
-   --  Set to True if the list of compilation commands should not be output.
+   --  GNATMAKE, GNATCLEAN, GPR2MAKE
+   --  Set to True if the tool should not have any output if there are no
+   --  errors or warnings.
+
+   RTS_Lib_Path_Name : String_Ptr := null;
+   RTS_Src_Path_Name : String_Ptr := null;
+   --  GNAT
+   --  Set to the "adalib" and "adainclude" directories of the run time
+   --  specified by --RTS=.
 
    RTS_Switch : Boolean := False;
    --  GNAT, GNATMAKE, GNATBIND, GNATLS, GNATFIND, GNATXREF
    --  Set to True when the --RTS switch is set
 
+   Run_Path_Option : Boolean := True;
+   --  GNATMAKE, GNATLINK
+   --  Set to False when no run_path_option should be issued to the linker
+
    Shared_Libgnat : Boolean;
    --  GNATBIND
    --  Set to True if a shared libgnat is requested by using the -shared
@@ -648,6 +789,14 @@ package Opt is
    --  in which case it points to the argument of the pragma, and the name can
    --  be located as Chars (Expression (System_Extend_Pragma_Arg)).
 
+   System_Extend_Unit : Node_Id := Empty;
+   --  GNAT
+   --  This is set to Empty if GNAT_Mode is set, since pragma Extend_System
+   --  is never appropriate in GNAT_Mode (and causes troubles, including
+   --  bogus circularities, if we try to compile the run-time library with
+   --  a System extension). If GNAT_Mode is not set, then System_Extend_Unit
+   --  is a copy of the value set in System_Extend_Pragma_Ary.
+
    Subunits_Missing : Boolean := False;
    --  GNAT
    --  This flag is set true if missing subunits are detected with code
@@ -657,13 +806,19 @@ package Opt is
    --  GNAT
    --  Set to True if -gnatp (suppress all checks) switch present.
 
-   Suppress_Options : Suppress_Record;
+   Suppress_Options : Suppress_Array;
    --  GNAT
    --  Flags set True to suppress corresponding check, i.e. add an implicit
    --  pragma Suppress at the outer level of each unit compiled. Note that
    --  these suppress actions can be overridden by the use of the Unsuppress
    --  pragma. This variable is initialized by Osint.Initialize.
 
+   Suppress_Back_Annotation : Boolean := False;
+   --  GNAT
+   --  This flag is set True if back annotation of representation information
+   --  is to be suppressed. This is set if neither -gnatt or -gnatR0-3 is set.
+   --  This avoids unnecessary time being spent on back annotation.
+
    Table_Factor : Int := 1;
    --  GNAT
    --  Factor by which all initial table sizes set in Alloc are multiplied.
@@ -673,11 +828,17 @@ package Opt is
    --  used if no -gnatT switch appears.
 
    Task_Dispatching_Policy : Character := ' ';
-   --  GNAT
+   --  GNAT, GNATBIND
    --  Set to ' ' for the default case (no task dispatching policy specified).
    --  Reset to first character (uppercase) of task dispatching policy name
    --  if a valid Task_Dispatching_Policy pragma is encountered.
 
+   Task_Dispatching_Policy_Sloc : Source_Ptr := No_Location;
+   --  GNAT, GNATBIND
+   --  Remember location of previous Task_Dispatching_Policy pragma. This is
+   --  used for inconsistency error messages. A value of System_Location is
+   --  used if the policy is set in package System.
+
    Tasking_Used : Boolean := False;
    --  Set True if any tasking construct is encountered. Used to activate the
    --  output of the Q, L and T lines in ALI files.
@@ -713,11 +874,24 @@ package Opt is
    --  the other hand, most such blowups will be caught cleanly and simply
    --  say compilation abandoned. This flag is set to True by -gnatq or -gnatQ.
 
+   Undefined_Symbols_Are_False : Boolean := False;
+   --  GNAT, GNATPREP
+   --  Set to True by switch -u of gnatprep or -u in the preprocessing data
+   --  file for the compiler. Indicates that while preprocessing sources,
+   --  symbols that are not defined have the value FALSE.
+
    Unique_Error_Tag : Boolean := Tag_Errors;
    --  GNAT
    --  Indicates if error messages are to be prefixed by the string error:
    --  Initialized from Tag_Errors, can be forced on with the -gnatU switch.
 
+   Universal_Addressing_On_AAMP : Boolean := False;
+   --  GNAAMP
+   --  Indicates if library-level objects should be accessed and updated
+   --  using universal addressing instructions on the AAMP architecture.
+   --  This flag is set to True when pragma Universal_Data is given as
+   --  a configuration pragma.
+
    Unreserve_All_Interrupts : Boolean := False;
    --  GNAT, GNATBIND
    --  Normally set False, set True if a valid Unreserve_All_Interrupts
@@ -753,31 +927,63 @@ package Opt is
    --  This flag is set to False by the -gnatp switch.
 
    Verbose_Mode : Boolean := False;
-   --  GNAT, GNATBIND, GNATMAKE, GNATLINK, GNATLS, GNATCHOP, GNATNAME
+   --  GNAT, GNATBIND, GNATMAKE, GNATLINK, GNATLS, GNATCHOP, GNATNAME,
+   --  GNATCLEAN
    --  Set to True to get verbose mode (full error message text and location
    --  information sent to standard output, also header, copyright and summary)
 
-   Warn_On_Biased_Rounding : Boolean := False;
+   Warn_On_Constant : Boolean := False;
    --  GNAT
-   --  Set to True to generate warnings for static constants that are rounded
-   --  in a manner inconsistent with unbiased rounding (round to even). Can
-   --  be modified by use of -gnatwb/B.
+   --  Set to True to generate warnings for variables that could be declared
+   --  as constants. Modified by use of -gnatwk/K.
 
    Warn_On_Dereference : Boolean := False;
    --  GNAT
    --  Set to True to generate warnings for implicit dereferences for array
    --  indexing and record component access. Modified by use of -gnatwd/D.
 
+   Warn_On_Export_Import : Boolean := True;
+   --  GNAT
+   --  Set to True to generate warnings for suspicious use of export or
+   --  import pragmas. Modified by use of -gnatwx/X.
+
    Warn_On_Hiding : Boolean := False;
    --  GNAT
    --  Set to True to generate warnings if a declared entity hides another
    --  entity. The default is that this warning is suppressed.
 
+   Warn_On_Modified_Unread : Boolean := False;
+   --  GNAT
+   --  Set to True to generate warnings if a variable is assigned but is
+   --  never read. The default is that this warning is suppressed.
+
+   Warn_On_No_Value_Assigned : Boolean := True;
+   --  GNAT
+   --  Set to True to generate warnings if no value is ever assigned to a
+   --  variable that is at least partially uninitialized. Set to false to
+   --  suppress such warnings. The default is that such warnings are enabled.
+
+   Warn_On_Obsolescent_Feature : Boolean := False;
+   --  GNAT
+   --  Set to True to generate warnings on use of any feature in Annex J
+   --  or if a subprogram is called for which a pragma Obsolescent applies.
+
    Warn_On_Redundant_Constructs : Boolean := False;
    --  GNAT
    --  Set to True to generate warnings for redundant constructs (e.g. useless
    --  assignments/conversions). The default is that this warning is disabled.
 
+   Warn_On_Unchecked_Conversion : Boolean := True;
+   --  GNAT
+   --  Set to True to generate warnings for unchecked conversions that may have
+   --  non-portable semantics (e.g. because sizes of types differ). The default
+   --  is that this warning is enabled.
+
+   Warn_On_Unrecognized_Pragma : Boolean := True;
+   --  GNAT
+   --  Set to True to generate warnings for unrecognized pragmas. The default
+   --  is that this warning is enabled.
+
    type Warning_Mode_Type is (Suppress, Normal, Treat_As_Error);
    Warning_Mode : Warning_Mode_Type := Normal;
    --  GNAT, GNATBIND
@@ -833,6 +1039,10 @@ package Opt is
    --  Set True for dynamic elaboration checking mode, as set by the -gnatE
    --  switch or by the use of pragma Elaboration_Checking (Dynamic).
 
+   Exception_Locations_Suppressed_Config : Boolean := False;
+   --  GNAT
+   --  Set True by use of the configuration pragma Suppress_Exception_Messages
+
    Extensions_Allowed_Config : Boolean;
    --  GNAT
    --  This is the flag that indicates whether extensions are allowed.
@@ -927,16 +1137,41 @@ package Opt is
    procedure Tree_Write;
    --  Writes out switch settings to current tree file using Tree_Write
 
+   --------------------------
+   -- ASIS Version Control --
+   --------------------------
+
+   --  These two variables (Tree_Version_String and Tree_ASIS_Version_Number)
+   --  are supposed to be used in the GNAT/ASIS version check performed in
+   --  the ASIS code (this package is also a part of the ASIS implementation).
+   --  They are set by Tree_Read procedure, so they represent the version
+   --  number (and the version string) of the compiler which has created the
+   --  tree, and they are supposed to be compared with the corresponding values
+   --  from the Gnatvsn package which is a part of ASIS implementation.
+
+   Tree_Version_String : String (Gnat_Version_String'Range);
+   --  Used to store the compiler version string read from a tree file to
+   --  check if it is the same as stored in the version string in Gnatvsn.
+   --  Therefore its length is taken directly from the version string in
+   --  Gnatvsn. If the length of the version string stored in the tree is
+   --  different, then versions are for sure different, and a string containing
+   --  '?' characters is assigned to this variable as a result of tree read.
+
+   Tree_ASIS_Version_Number : Int;
+   --  Used to store the ASIS version number read from a tree file to check if
+   --  it is the same as stored in the ASIS version number in Gnatvsn.
+
 private
 
    type Config_Switches_Type is record
-      Ada_83                     : Boolean;
-      Dynamic_Elaboration_Checks : Boolean;
-      Extensions_Allowed         : Boolean;
-      External_Name_Exp_Casing   : External_Casing_Type;
-      External_Name_Imp_Casing   : External_Casing_Type;
-      Polling_Required           : Boolean;
-      Use_VADS_Size              : Boolean;
+      Ada_83                         : Boolean;
+      Dynamic_Elaboration_Checks     : Boolean;
+      Exception_Locations_Suppressed : Boolean;
+      Extensions_Allowed             : Boolean;
+      External_Name_Exp_Casing       : External_Casing_Type;
+      External_Name_Imp_Casing       : External_Casing_Type;
+      Polling_Required               : Boolean;
+      Use_VADS_Size                  : Boolean;
    end record;
 
 end Opt;