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	360	val compile : string option -> bool
12 :	blume	357	end = struct
13 :
14 :	blume	327	structure EM = GenericVC.ErrorMsg
15 :			structure E = GenericVC.Environment
16 :			structure SE = GenericVC.CMStaticEnv
17 :			structure BE = GenericVC.BareEnvironment
18 :			structure PS = GenericVC.PersStamps
19 :			structure CoerceEnv = GenericVC.CoerceEnv
20 :	blume	336	structure SSV = SpecificSymValFn (structure MachDepVC = MachDepVC
21 :			val os = os)
22 :	blume	327
23 :			(* Since the bootstrap compiler never executes any of the code
24 :			* it produces, we don't need any dynamic values. Therefore,
25 :			* we create RecompPersstate (but not FullPersstate!) and
26 :			* instantiate Recomp as well as RecompTraversal.
27 :			* Since RecompPersstate is not part of any surrounding FullPersstate,
28 :			* function "discard_value" simply does nothing. *)
29 :			structure RecompPersstate =
30 :			RecompPersstateFn (structure MachDepVC = MachDepVC
31 :			val discard_code = true
32 :	blume	360	fun new_smlinfo (i, popt) = ())
33 :
34 :	blume	327	structure Recomp = RecompFn (structure PS = RecompPersstate)
35 :			structure RT = CompileGenericFn (structure CT = Recomp)
36 :
37 :			fun recomp gp g = isSome (RT.group gp g)
38 :
39 :			(* instantiate Stabilize... *)
40 :	blume	329	structure Stabilize =
41 :			StabilizeFn (fun bn2statenv gp i = #1 (#stat (valOf (RT.bnode gp i)))
42 :	blume	357	val getPid = RecompPersstate.pid_fetch_sml
43 :			fun warmup (i, p) = ()
44 :	blume	329	val recomp = recomp)
45 :	blume	327	(* ... and Parse *)
46 :			structure Parse = ParseFn (structure Stabilize = Stabilize)
47 :
48 :	blume	358	fun listName p =
49 :			case OS.Path.fromString p of
50 :			{ vol = "", isAbs = false, arcs = _ :: arc1 :: arcn } => let
51 :			fun win32name () =
52 :			concat (arc1 ::
53 :			foldr (fn (a, r) => "\\" :: a :: r) [] arcn)
54 :			in
55 :			case os of
56 :			SMLofNJ.SysInfo.WIN32 => win32name ()
57 :			| _ => OS.Path.toString { isAbs = false, vol = "",
58 :			arcs = arc1 :: arcn }
59 :			end
60 :			| _ => raise Fail "BootstrapCompile:listName: bad name"
61 :	blume	327
62 :	blume	360	fun compile dbopt = let
63 :	blume	358
64 :	blume	360	val dirbase = getOpt (dbopt, BtNames.dirbaseDefault)
65 :			val pcmodespec = BtNames.pcmodespec
66 :			val initgspec = BtNames.initgspec
67 :			val maingspec = BtNames.maingspec
68 :
69 :	blume	357	val arch = MachDepVC.architecture
70 :			val osname = FilenamePolicy.kind2name os
71 :			val bindir = concat [dirbase, ".bin.", arch, "-", osname]
72 :			val bootdir = concat [dirbase, ".boot.", arch, "-", osname]
73 :
74 :	blume	329	val keep_going = EnvConfig.getSet StdConfig.keep_going NONE
75 :
76 :	blume	354	val ctxt = SrcPath.cwdContext ()
77 :	blume	329
78 :	blume	357	val pidfile = OS.Path.joinDirFile { dir = bootdir, file = "RTPID" }
79 :			val listfile = OS.Path.joinDirFile { dir = bootdir, file = "BINLIST" }
80 :	blume	329
81 :	blume	344	val pcmode = let
82 :	blume	345	fun work s = let
83 :			fun loop l = let
84 :			val line = TextIO.inputLine s
85 :			in
86 :			if line = "" then PathConfig.hardwire l
87 :			else case String.tokens Char.isSpace line of
88 :			[a, s] => loop ((a, s) :: l)
89 :	blume	354	| _ => (Say.say [pcmodespec,
90 :	blume	345	": malformed line (ignored)\n"];
91 :			loop l)
92 :			end
93 :	blume	329	in
94 :	blume	345	loop []
95 :	blume	329	end
96 :			in
97 :	blume	354	SafeIO.perform { openIt = fn () => TextIO.openIn pcmodespec,
98 :	blume	345	closeIt = TextIO.closeIn,
99 :			work = work,
100 :			cleanup = fn () => () }
101 :	blume	329	end
102 :
103 :	blume	354	fun stdpath s = SrcPath.standard pcmode { context = ctxt, spec = s }
104 :	blume	352
105 :			val initgspec = stdpath initgspec
106 :			val maingspec = stdpath maingspec
107 :
108 :	blume	360	val cmifile = valOf (SrcPath.reAnchoredName (initgspec, bootdir))
109 :			handle Option => raise Fail "BootstrapCompile: cmifile"
110 :
111 :	blume	357	val initfnpolicy =
112 :			FilenamePolicy.separate { bindir = bootdir, bootdir = bootdir }
113 :			{ arch = arch, os = os }
114 :	blume	329
115 :	blume	357	val mainfnpolicy =
116 :			FilenamePolicy.separate { bindir = bindir, bootdir = bootdir }
117 :			{ arch = arch, os = os }
118 :
119 :			fun mkParam { primconf, pervasive, pervcorepids, fnpolicy }
120 :			{ corenv } =
121 :	blume	349	{ primconf = primconf,
122 :			fnpolicy = fnpolicy,
123 :			pcmode = pcmode,
124 :			symenv = SSV.env,
125 :			keep_going = keep_going,
126 :			pervasive = pervasive,
127 :			corenv = corenv,
128 :			pervcorepids = pervcorepids }
129 :
130 :	blume	327	val emptydyn = E.dynamicPart E.emptyEnv
131 :
132 :			(* first, build an initial GeneralParam.info, so we can
133 :			* deal with the pervasive env and friends... *)
134 :
135 :	blume	360	val primconf = Primitive.primEnvConf
136 :	blume	349	val mkInitParam = mkParam { primconf = primconf,
137 :			pervasive = E.emptyEnv,
138 :	blume	357	pervcorepids = PidSet.empty,
139 :			fnpolicy = initfnpolicy }
140 :	blume	327
141 :	blume	349	val param_nocore = mkInitParam { corenv = BE.staticPart BE.emptyEnv }
142 :
143 :	blume	327	val groupreg = GroupReg.new ()
144 :			val errcons = EM.defaultConsumer ()
145 :	blume	329	val ginfo_nocore = { param = param_nocore, groupreg = groupreg,
146 :			errcons = errcons }
147 :	blume	327
148 :			fun main_compile arg = let
149 :	blume	335	val { rts, core, pervasive, primitives, binpaths } = arg
150 :	blume	327
151 :	blume	329	val ovldR = GenericVC.Control.overloadKW
152 :			val savedOvld = !ovldR
153 :			val _ = ovldR := true
154 :
155 :	blume	327	(* here we build a new gp -- the one that uses the freshly
156 :			* brewed pervasive env, core env, and primitives *)
157 :	blume	358	val core = valOf (RT.sbnode ginfo_nocore core)
158 :	blume	329	val corenv = CoerceEnv.es2bs (#1 (#stat core))
159 :	blume	356	val core_sym = #1 (#sym core)
160 :	blume	329
161 :			(* The following is a bit of a hack (but corenv is a hack anyway):
162 :			* As soon as we have core available, we have to patch the
163 :			* ginfo to include the correct corenv (because virtually
164 :			* everybody else needs access to corenv). *)
165 :	blume	349	val param_justcore = mkInitParam { corenv = corenv }
166 :	blume	329	val ginfo_justcore = { param = param_justcore, groupreg = groupreg,
167 :			errcons = errcons }
168 :
169 :	blume	358	fun rt n = valOf (RT.sbnode ginfo_justcore n)
170 :	blume	327	val rts = rt rts
171 :			val pervasive = rt pervasive
172 :
173 :			fun sn2pspec (name, n) = let
174 :			val { stat = (s, sp), sym = (sy, syp), ctxt } = rt n
175 :			val env =
176 :			E.mkenv { static = s, symbolic = sy, dynamic = emptydyn }
177 :			val pidInfo = { statpid = sp, sympid = syp, ctxt = ctxt }
178 :			in
179 :			{ name = name, env = env, pidInfo = pidInfo }
180 :			end
181 :
182 :			val pspecs = map sn2pspec primitives
183 :
184 :	blume	329	val _ = ovldR := savedOvld
185 :
186 :	blume	356	(* This is a hack but must be done for both the symbolic
187 :			* and later the dynamic part of the core environment:
188 :			* we must include these parts in the pervasive env. *)
189 :			val perv_sym = E.layerSymbolic (#1 (#sym pervasive), core_sym)
190 :
191 :	blume	349	val param =
192 :			mkParam { primconf = Primitive.configuration pspecs,
193 :	blume	327	pervasive = E.mkenv { static = #1 (#stat pervasive),
194 :	blume	356	symbolic = perv_sym,
195 :	blume	327	dynamic = emptydyn },
196 :			pervcorepids =
197 :			PidSet.addList (PidSet.empty,
198 :			[#2 (#stat pervasive),
199 :			#2 (#sym pervasive),
200 :	blume	357	#2 (#stat core)]),
201 :			fnpolicy = mainfnpolicy }
202 :	blume	349	{ corenv = corenv }
203 :	blume	327	in
204 :	blume	358	case Parse.parse NONE param (SOME true) maingspec of
205 :	blume	349	NONE => false
206 :	blume	329	| SOME (g, gp) =>
207 :	blume	349	if recomp gp g then let
208 :			val rtspid = PS.toHex (#2 (#stat rts))
209 :			val bootfiles =
210 :			map (fn x => (x, NONE)) binpaths @
211 :			MkBootList.group g
212 :			fun writeList s = let
213 :			fun offset NONE = ["\n"]
214 :			| offset (SOME i) = ["@", Int.toString i, "\n"]
215 :			fun showBootFile (p, off) =
216 :	blume	358	TextIO.output (s, concat (listName p ::
217 :			offset off))
218 :	blume	349	in
219 :			app showBootFile bootfiles
220 :			end
221 :	blume	360	fun cpCMI (ins, outs) = let
222 :			val N = 4096
223 :			fun cp () =
224 :			if TextIO.endOfStream ins then ()
225 :			else (TextIO.output (outs,
226 :			TextIO.inputN (ins, N));
227 :			cp ())
228 :			in
229 :			cp ()
230 :			end
231 :	blume	349	in
232 :			Say.say ["Runtime System PID is: ", rtspid, "\n"];
233 :			SafeIO.perform { openIt = fn () =>
234 :	blume	354	AutoDir.openTextOut pidfile,
235 :	blume	349	closeIt = TextIO.closeOut,
236 :			work = fn s =>
237 :			TextIO.output (s, rtspid ^ "\n"),
238 :			cleanup = fn () =>
239 :	blume	354	OS.FileSys.remove pidfile
240 :			handle _ => () };
241 :	blume	349	SafeIO.perform { openIt = fn () =>
242 :	blume	354	AutoDir.openTextOut listfile,
243 :	blume	349	closeIt = TextIO.closeOut,
244 :			work = writeList,
245 :			cleanup = fn () =>
246 :	blume	354	OS.FileSys.remove listfile
247 :			handle _ => () };
248 :	blume	360	SafeIO.perform { openIt = fn () =>
249 :			(SrcPath.openTextIn initgspec,
250 :			AutoDir.openTextOut cmifile),
251 :			closeIt = fn (ins, outs) =>
252 :			(TextIO.closeIn ins;
253 :			TextIO.closeOut outs),
254 :			work = cpCMI,
255 :			cleanup = fn () =>
256 :			OS.FileSys.remove cmifile
257 :			handle _ => () };
258 :	blume	349	true
259 :			end
260 :			else false
261 :	blume	351	end handle Option => (RT.reset (); false)
262 :	blume	330	(* to catch valOf failures in "rt" *)
263 :	blume	327	in
264 :	blume	329	case BuildInitDG.build ginfo_nocore initgspec of
265 :	blume	327	SOME x => main_compile x
266 :	blume	349	| NONE => false
267 :	blume	327	end
268 :			end

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