Annotation of /sml/trunk/src/cm/bootstrap/btcompile.sml

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1 :	blume	327	(*
2 :			* The bootstrap compiler.
3 :			* (Formerly known as "batch" compiler.)
4 :			*
5 :			* (C) 1999 Lucent Technologies, Bell Laboratories
6 :			*
7 :			* Author: Matthias Blume (blume@kurims.kyoto-u.ac.jp)
8 :			*)
9 :	blume	329	functor BootstrapCompileFn (structure MachDepVC: MACHDEP_VC
10 :	blume	357	val os: SMLofNJ.SysInfo.os_kind) :> sig
11 :	blume	364	val make' : string option -> bool
12 :			val make : unit -> bool
13 :	blume	362	val deliver' : string option -> bool
14 :			val deliver : unit -> bool
15 :			val reset : unit -> unit
16 :	blume	357	end = struct
17 :
18 :	blume	327	structure EM = GenericVC.ErrorMsg
19 :			structure E = GenericVC.Environment
20 :			structure SE = GenericVC.CMStaticEnv
21 :			structure BE = GenericVC.BareEnvironment
22 :			structure PS = GenericVC.PersStamps
23 :			structure CoerceEnv = GenericVC.CoerceEnv
24 :	blume	336	structure SSV = SpecificSymValFn (structure MachDepVC = MachDepVC
25 :			val os = os)
26 :	blume	364	structure P = OS.Path
27 :			structure F = OS.FileSys
28 :	blume	327
29 :			(* Since the bootstrap compiler never executes any of the code
30 :			* it produces, we don't need any dynamic values. Therefore,
31 :			* we create RecompPersstate (but not FullPersstate!) and
32 :			* instantiate Recomp as well as RecompTraversal.
33 :			* Since RecompPersstate is not part of any surrounding FullPersstate,
34 :			* function "discard_value" simply does nothing. *)
35 :			structure RecompPersstate =
36 :			RecompPersstateFn (structure MachDepVC = MachDepVC
37 :			val discard_code = true
38 :	blume	362	fun stable_value_present i = false
39 :			fun new_smlinfo i = ())
40 :	blume	360
41 :	blume	327	structure Recomp = RecompFn (structure PS = RecompPersstate)
42 :	blume	371	structure RT = CompileGenericFn (structure CT = Recomp)
43 :	blume	327
44 :			fun recomp gp g = isSome (RT.group gp g)
45 :
46 :			(* instantiate Stabilize... *)
47 :	blume	329	structure Stabilize =
48 :	blume	372	StabilizeFn (fun bn2statenv gp i = #1 (#stat (valOf (RT.bnode' gp i)))
49 :	blume	357	fun warmup (i, p) = ()
50 :	blume	363	val recomp = recomp
51 :			val transfer_state = RecompPersstate.transfer_state)
52 :	blume	327	(* ... and Parse *)
53 :	blume	362	structure Parse = ParseFn (structure Stabilize = Stabilize
54 :	blume	372	fun pending () = SymbolMap.empty)
55 :	blume	327
56 :	blume	366	(* copying an input file to an output file safely... *)
57 :	blume	368	fun copyFile (oi, ci, oo, co, inp, outp, eof) (inf, outf) = let
58 :			fun workIn is = let
59 :			fun workOut os = let
60 :	blume	366	val N = 4096
61 :			fun loop () =
62 :	blume	368	if eof is then () else (outp (os, inp (is, N)); loop ())
63 :	blume	366	in
64 :			loop ()
65 :			end
66 :			in
67 :	blume	368	SafeIO.perform { openIt = fn () => oo outf,
68 :			closeIt = co,
69 :	blume	366	work = workOut,
70 :			cleanup = fn () =>
71 :			(F.remove outf handle _ => ()) }
72 :			end
73 :	blume	364	in
74 :	blume	368	SafeIO.perform { openIt = fn () => oi inf,
75 :			closeIt = ci,
76 :	blume	366	work = workIn,
77 :			cleanup = fn () => () }
78 :	blume	364	end
79 :	blume	327
80 :	blume	368	val copyTextFile =
81 :			copyFile (TextIO.openIn, TextIO.closeIn,
82 :			AutoDir.openTextOut, TextIO.closeOut,
83 :			TextIO.inputN, TextIO.output, TextIO.endOfStream)
84 :
85 :			val copyBinFile =
86 :			copyFile (BinIO.openIn, BinIO.closeIn,
87 :			AutoDir.openBinOut, BinIO.closeOut,
88 :			BinIO.inputN, BinIO.output, BinIO.endOfStream)
89 :
90 :	blume	362	fun compile deliver dbopt = let
91 :	blume	358
92 :	blume	360	val dirbase = getOpt (dbopt, BtNames.dirbaseDefault)
93 :			val pcmodespec = BtNames.pcmodespec
94 :			val initgspec = BtNames.initgspec
95 :			val maingspec = BtNames.maingspec
96 :
97 :	blume	357	val arch = MachDepVC.architecture
98 :			val osname = FilenamePolicy.kind2name os
99 :			val bindir = concat [dirbase, ".bin.", arch, "-", osname]
100 :			val bootdir = concat [dirbase, ".boot.", arch, "-", osname]
101 :
102 :	blume	364	fun listName (p, copy) =
103 :			case P.fromString p of
104 :			{ vol = "", isAbs = false, arcs = arc0 :: arc1 :: arcn } => let
105 :			fun win32name () =
106 :			concat (arc1 ::
107 :			foldr (fn (a, r) => "\\" :: a :: r) [] arcn)
108 :			fun doCopy () = let
109 :			val bootpath =
110 :			P.toString { isAbs = false, vol = "",
111 :			arcs = bootdir :: arc1 :: arcn }
112 :			in
113 :	blume	368	copyBinFile (p, bootpath)
114 :	blume	364	end
115 :			in
116 :			if copy andalso arc0 = bindir then doCopy () else ();
117 :			case os of
118 :			SMLofNJ.SysInfo.WIN32 => win32name ()
119 :			| _ => P.toString { isAbs = false, vol = "",
120 :			arcs = arc1 :: arcn }
121 :			end
122 :			| _ => raise Fail "BootstrapCompile:listName: bad name"
123 :
124 :	blume	329	val keep_going = EnvConfig.getSet StdConfig.keep_going NONE
125 :
126 :	blume	354	val ctxt = SrcPath.cwdContext ()
127 :	blume	329
128 :	blume	364	val pidfile = P.joinDirFile { dir = bootdir, file = "RTPID" }
129 :			val listfile = P.joinDirFile { dir = bootdir, file = "BOOTLIST" }
130 :	blume	329
131 :	blume	361	val pcmode = PathConfig.new ()
132 :			val _ = PathConfig.processSpecFile (pcmode, pcmodespec)
133 :	blume	329
134 :	blume	354	fun stdpath s = SrcPath.standard pcmode { context = ctxt, spec = s }
135 :	blume	352
136 :			val initgspec = stdpath initgspec
137 :			val maingspec = stdpath maingspec
138 :
139 :	blume	360	val cmifile = valOf (SrcPath.reAnchoredName (initgspec, bootdir))
140 :			handle Option => raise Fail "BootstrapCompile: cmifile"
141 :
142 :	blume	364	val fnpolicy =
143 :	blume	357	FilenamePolicy.separate { bindir = bindir, bootdir = bootdir }
144 :			{ arch = arch, os = os }
145 :
146 :	blume	364	fun mkParam { primconf, pervasive, pervcorepids }
147 :	blume	357	{ corenv } =
148 :	blume	349	{ primconf = primconf,
149 :			fnpolicy = fnpolicy,
150 :			pcmode = pcmode,
151 :			symenv = SSV.env,
152 :			keep_going = keep_going,
153 :			pervasive = pervasive,
154 :			corenv = corenv,
155 :			pervcorepids = pervcorepids }
156 :
157 :	blume	327	val emptydyn = E.dynamicPart E.emptyEnv
158 :
159 :			(* first, build an initial GeneralParam.info, so we can
160 :			* deal with the pervasive env and friends... *)
161 :
162 :	blume	360	val primconf = Primitive.primEnvConf
163 :	blume	349	val mkInitParam = mkParam { primconf = primconf,
164 :			pervasive = E.emptyEnv,
165 :	blume	364	pervcorepids = PidSet.empty }
166 :	blume	327
167 :	blume	349	val param_nocore = mkInitParam { corenv = BE.staticPart BE.emptyEnv }
168 :
169 :	blume	327	val groupreg = GroupReg.new ()
170 :			val errcons = EM.defaultConsumer ()
171 :	blume	329	val ginfo_nocore = { param = param_nocore, groupreg = groupreg,
172 :			errcons = errcons }
173 :	blume	327
174 :			fun main_compile arg = let
175 :	blume	335	val { rts, core, pervasive, primitives, binpaths } = arg
176 :	blume	327
177 :	blume	329	val ovldR = GenericVC.Control.overloadKW
178 :			val savedOvld = !ovldR
179 :			val _ = ovldR := true
180 :	blume	372	val ts = RT.start ()
181 :	blume	329
182 :	blume	327	(* here we build a new gp -- the one that uses the freshly
183 :			* brewed pervasive env, core env, and primitives *)
184 :	blume	372	val core = valOf (RT.sbnode ts ginfo_nocore core)
185 :	blume	329	val corenv = CoerceEnv.es2bs (#1 (#stat core))
186 :	blume	356	val core_sym = #1 (#sym core)
187 :	blume	329
188 :			(* The following is a bit of a hack (but corenv is a hack anyway):
189 :			* As soon as we have core available, we have to patch the
190 :			* ginfo to include the correct corenv (because virtually
191 :			* everybody else needs access to corenv). *)
192 :	blume	349	val param_justcore = mkInitParam { corenv = corenv }
193 :	blume	329	val ginfo_justcore = { param = param_justcore, groupreg = groupreg,
194 :			errcons = errcons }
195 :
196 :	blume	372	fun rt n = valOf (RT.sbnode ts ginfo_justcore n)
197 :	blume	327	val rts = rt rts
198 :			val pervasive = rt pervasive
199 :
200 :			fun sn2pspec (name, n) = let
201 :	blume	369	val { stat = (s, sp), sym = (sy, syp), ctxt, bfc } = rt n
202 :	blume	327	val env =
203 :			E.mkenv { static = s, symbolic = sy, dynamic = emptydyn }
204 :			val pidInfo = { statpid = sp, sympid = syp, ctxt = ctxt }
205 :			in
206 :			{ name = name, env = env, pidInfo = pidInfo }
207 :			end
208 :
209 :			val pspecs = map sn2pspec primitives
210 :
211 :	blume	329	val _ = ovldR := savedOvld
212 :
213 :	blume	372	(* To be consistent, we would have to call RT.finish here.
214 :			* However, this isn't really necessary because no dynamic
215 :			* values exist and we drop "ts" at this point anyway. *)
216 :			(* val _ = RT.finish ts *)
217 :
218 :			(* The following is a hack but must be done for both the symbolic
219 :	blume	356	* and later the dynamic part of the core environment:
220 :			* we must include these parts in the pervasive env. *)
221 :			val perv_sym = E.layerSymbolic (#1 (#sym pervasive), core_sym)
222 :
223 :	blume	349	val param =
224 :			mkParam { primconf = Primitive.configuration pspecs,
225 :	blume	327	pervasive = E.mkenv { static = #1 (#stat pervasive),
226 :	blume	356	symbolic = perv_sym,
227 :	blume	327	dynamic = emptydyn },
228 :			pervcorepids =
229 :			PidSet.addList (PidSet.empty,
230 :			[#2 (#stat pervasive),
231 :			#2 (#sym pervasive),
232 :	blume	364	#2 (#stat core)]) }
233 :	blume	349	{ corenv = corenv }
234 :	blume	362	val stab =
235 :			if deliver then SOME true else NONE
236 :	blume	327	in
237 :	blume	362	case Parse.parse NONE param stab maingspec of
238 :	blume	349	NONE => false
239 :	blume	329	| SOME (g, gp) =>
240 :	blume	349	if recomp gp g then let
241 :			val rtspid = PS.toHex (#2 (#stat rts))
242 :			fun writeList s = let
243 :	blume	364	fun add ((p, flag), l) = let
244 :			val n = listName (p, true)
245 :			in
246 :			if flag then n :: l else l
247 :			end
248 :			fun transcribe (p, NONE) = listName (p, true)
249 :			| transcribe (p, SOME (off, desc)) =
250 :			concat [listName (p, false),
251 :			"@", Int.toString off, ":", desc]
252 :			val bootstrings =
253 :			foldr add (map transcribe (MkBootList.group g))
254 :			binpaths
255 :			fun show str =
256 :			(TextIO.output (s, str);
257 :			TextIO.output (s, "\n"))
258 :	blume	349	in
259 :	blume	364	app show bootstrings
260 :	blume	349	end
261 :			in
262 :	blume	362	if deliver then
263 :			(SafeIO.perform { openIt = fn () =>
264 :	blume	354	AutoDir.openTextOut pidfile,
265 :	blume	349	closeIt = TextIO.closeOut,
266 :			work = fn s =>
267 :			TextIO.output (s, rtspid ^ "\n"),
268 :			cleanup = fn () =>
269 :	blume	354	OS.FileSys.remove pidfile
270 :			handle _ => () };
271 :	blume	349	SafeIO.perform { openIt = fn () =>
272 :	blume	354	AutoDir.openTextOut listfile,
273 :	blume	349	closeIt = TextIO.closeOut,
274 :			work = writeList,
275 :			cleanup = fn () =>
276 :	blume	354	OS.FileSys.remove listfile
277 :			handle _ => () };
278 :	blume	368	copyTextFile (SrcPath.osstring initgspec, cmifile);
279 :	blume	366	Say.say ["Runtime System PID is: ", rtspid, "\n"])
280 :	blume	362	else ();
281 :			true
282 :	blume	349	end
283 :			else false
284 :	blume	351	end handle Option => (RT.reset (); false)
285 :	blume	330	(* to catch valOf failures in "rt" *)
286 :	blume	327	in
287 :	blume	329	case BuildInitDG.build ginfo_nocore initgspec of
288 :	blume	327	SOME x => main_compile x
289 :	blume	349	| NONE => false
290 :	blume	327	end
291 :	blume	362
292 :			fun reset () =
293 :			(RecompPersstate.reset ();
294 :	blume	372	RT.reset ();
295 :	blume	367	Recomp.reset ();
296 :			Parse.reset ())
297 :	blume	377
298 :			val make' = compile false
299 :			fun make () = make' NONE
300 :			fun deliver' arg =
301 :			SafeIO.perform { openIt = fn () => (),
302 :			closeIt = reset,
303 :			work = fn () => compile true arg,
304 :			cleanup = fn () => () }
305 :			fun deliver () = deliver' NONE
306 :	blume	327	end

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