aboutsummaryrefslogtreecommitdiff
path: root/src/boot/translator.boot
blob: 03c493a19b62c3656c31f7f469b81f89bdd952c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
-- Copyright (c) 1991-2002, The Numerical Algorithms Group Ltd.
-- All rights reserved.
-- Copyright (C) 2007-2016, Gabriel Dos Reis.
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are
-- met:
--
--     - Redistributions of source code must retain the above copyright
--       notice, this list of conditions and the following disclaimer.
--
--     - Redistributions in binary form must reproduce the above copyright
--       notice, this list of conditions and the following disclaimer in
--       the documentation and/or other materials provided with the
--       distribution.
--
--     - Neither the name of The Numerical Algorithms Group Ltd. nor the
--       names of its contributors may be used to endorse or promote products
--       derived from this software without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--


import includer
import scanner
import pile
import parser
import ast
namespace BOOTTRAN
module translator (evalBootFile, loadNativeModule, loadSystemRuntimeCore,
  compileBootHandler, string2BootTree, genImportDeclaration, retainFile?)

++ If non nil, holds the name of the current module being translated.
$currentModuleName := nil

++ List of foreign load units mentioned in foreign imports.
$foreignLoadUnits := []

++ Stack of foreign definitions to cope with CLisp's odd FFI interface.
$foreignsDefsForCLisp := []

reallyPrettyPrint(x,st == _*STANDARD_-OUTPUT_*) ==
  prettyPrint(x,st)
  writeNewline st

genModuleFinalization(stream) ==
  loadUnits := [symbolName x for x in $foreignLoadUnits]
  if loadUnits ~= [] then
    loadUnitsForm := ["MAP",quote "loadNativeModule",quote loadUnits]
    reallyPrettyPrint(atLoadOrExecutionTime loadUnitsForm,stream)
  $ffs = nil => nil
  $currentModuleName = nil => coreError '"current module has no name"
  setFFS := ["SETQ","$dynamicForeignFunctions",
              ["append!",quote $ffs,"$dynamicForeignFunctions"]]
  reallyPrettyPrint(atLoadOrExecutionTime setFFS,stream)
  %hasFeature KEYWORD::CLISP =>
    $foreignsDefsForCLisp = nil => nil
    init := ["PROGN", :[["EVAL",quote d] for d in $foreignsDefsForCLisp]]
    reallyPrettyPrint(atLoadOrExecutionTime init,stream)
  nil

genOptimizeOptions stream ==
  reallyPrettyPrint
    (["PROCLAIM",quote ["OPTIMIZE",:$LispOptimizeOptions]],stream)

AxiomCore::%sysInit() ==
  SETQ(_*LOAD_-VERBOSE_*,false)
  if %hasFeature KEYWORD::GCL then
    symbolValue(bfColonColon("COMPILER","*COMPILE-VERBOSE*")) := false
    symbolValue(bfColonColon("COMPILER","SUPPRESS-COMPILER-WARNINGS*")) := false
    symbolValue(bfColonColon("COMPILER","SUPPRESS-COMPILER-NOTES*")) := true

++ Make x, the current package
setCurrentPackage: %Thing -> %Thing
setCurrentPackage x ==
  SETQ(_*PACKAGE_*,x)

++ Compiles the input Lisp file designated by lspFileName.
shoeCOMPILE_-FILE: %String -> %Thing
shoeCOMPILE_-FILE lspFileName ==
  COMPILE_-FILE lspFileName

 
BOOTTOCL(fn, out) ==
  try
    startCompileDuration()
    in namespace BOOTTRAN do
      BOOTTOCLLINES(nil,fn, out)
  finally endCompileDuration()
 
++ (bootclam "filename") translates the file "filename.boot" to
++ the common lisp file "filename.clisp" , producing, for each function
++ a hash table to store previously computed values indexed by argument
++ list.
BOOTCLAM(fn, out) == 
  $bfClamming: local := true
  BOOTCLAMLINES(nil,fn, out)
 
BOOTCLAMLINES(lines, fn, out) ==
   BOOTTOCLLINES(lines, fn, out)

BOOTTOCLLINES(lines, fn, outfn)==
   try
     a := inputTextFile shoeAddbootIfNec fn
     shoeClLines(a,fn,lines,outfn)
   finally closeStream a
 
shoeClLines(a,fn,lines,outfn)==
  a=nil => shoeNotFound fn
  try
    stream := outputTextFile outfn
    genOptimizeOptions stream
    for line in lines repeat
      shoeFileLine(line,stream)
    shoeFileTrees(shoeTransformStream a,stream)
    genModuleFinalization stream
    outfn
  finally closeStream stream
 
++ (boottoclc "filename") translates the file "filename.boot" to
++ the common lisp file "filename.clisp" with the original boot
++ code as comments
BOOTTOCLC(fn, out)==
  try
    startCompileDuration()
    in namespace BOOTTRAN do
      BOOTTOCLCLINES(nil, fn, out)
  finally endCompileDuration()
 
BOOTTOCLCLINES(lines, fn, outfn)==
  try
    a := inputTextFile shoeAddbootIfNec fn
    shoeClCLines(a,fn,lines,outfn)
  finally closeStream a
 
shoeClCLines(a,fn,lines,outfn)==
  a=nil => shoeNotFound fn
  try
    stream := outputTextFile outfn
    genOptimizeOptions stream
    for line in lines repeat
       shoeFileLine(line,stream)
    shoeFileTrees(shoeTransformToFile(stream,
      shoeInclude bAddLineNumber(bRgen a,bIgen 0)),stream)
    genModuleFinalization(stream)
    outfn
  finally closeStream stream
 
++ (boottomc "filename") translates the file "filename.boot"
++ to machine code and loads it one item at a time
BOOTTOMC: %String -> %Thing 
BOOTTOMC fn==
   callingPackage := namespace .
   IN_-PACKAGE '"BOOTTRAN"
   try
     a := inputTextFile shoeAddbootIfNec fn
     shoeMc(a,fn)
   finally
     closeStream a
     setCurrentPackage callingPackage
 
shoeMc(a,fn)==
  a=nil => shoeNotFound fn
  shoePCompileTrees shoeTransformStream a
  shoeConsole strconc(fn,'" COMPILED AND LOADED")
 
evalBootFile fn ==
   b := namespace .
   IN_-PACKAGE '"BOOTTRAN"
   infn:=shoeAddbootIfNec fn
   outfn := strconc(shoeRemovebootIfNec fn,'".",'"lisp")
   try
     a := inputTextFile infn
     shoeClLines(a,infn,[],outfn)
   finally
     closeStream a
     setCurrentPackage b
   LOAD outfn
 
++ (boot "filename") translates the file "filename.boot"
++ and prints the result at the console
BO: %String -> %Thing 
BO fn==
  b := namespace .
  IN_-PACKAGE '"BOOTTRAN"
  try
    a := inputTextFile shoeAddbootIfNec fn
    shoeToConsole(a,fn)
  finally
    closeStream a
    setCurrentPackage b
 
BOCLAM fn==
  callingPackage := namespace .
  IN_-PACKAGE '"BOOTTRAN"
  $bfClamming: local := true
  try
    a := inputTextFile shoeAddbootIfNec fn
    shoeToConsole(a,fn)
  finally
    closeStream a
    setCurrentPackage callingPackage
 
shoeToConsole(a,fn)==
  a=nil => shoeNotFound fn
  shoeConsoleTrees shoeTransformToConsole
    shoeInclude bAddLineNumber(bRgen a,bIgen 0)

-- (stout "string") translates the string "string"
-- and prints the result at the console

STOUT string == 
  PSTOUT [string]
 
string2BootTree string ==   
  callingPackage := namespace .
  IN_-PACKAGE '"BOOTTRAN"
  a := shoeTransformString [string]
  result :=
    bStreamNull a => nil
    stripm(first a,callingPackage,namespace BOOTTRAN)
  setCurrentPackage callingPackage
  result

 
STEVAL string==
   callingPackage := namespace .
   IN_-PACKAGE '"BOOTTRAN"
   a:=  shoeTransformString [string]
   result := 
      bStreamNull a => nil
      fn:=stripm(first a,namespace .,namespace BOOTTRAN)
      EVAL fn
   setCurrentPackage callingPackage
   result
 
-- (sttomc "string") translates the string "string"
-- to common lisp, and compiles it.
 
STTOMC string==
   callingPackage := namespace .
   IN_-PACKAGE '"BOOTTRAN"
   a:=  shoeTransformString [string]
   result := 
      bStreamNull a => nil
      shoePCompile first a
   setCurrentPackage callingPackage
   result
 
 
shoeCompileTrees s==
    while not bStreamNull s repeat
         shoeCompile first s
         s := rest s

shoeCompile: %Ast -> %Thing 
shoeCompile fn==
    fn is ['DEFUN,name,bv,:body] =>
          COMPILE (name,['LAMBDA,bv,:body])
    EVAL fn
 
shoeTransform str==
    bNext(function shoeTreeConstruct,
      bNext(function shoePileInsert,
        bNext(function shoeLineToks, str)))
 
shoeTransformString s==
    shoeTransform shoeInclude bAddLineNumber(s,bIgen 0)

shoeTransformStream s ==
  shoeTransformString bRgen s
--  shoeTransform shoeInclude bAddLineNumber(bRgen s,bIgen 0)
 
shoeTransformToConsole str==
    bNext(function shoeConsoleItem,
      bNext(function shoePileInsert,
        bNext(function shoeLineToks, str)))
 
shoeTransformToFile(fn,str)==
    bFileNext(fn,
      bNext(function shoePileInsert,
        bNext(function shoeLineToks, str)))
 
shoeConsoleItem (str)==
  dq := first str
  shoeConsoleLines shoeDQlines dq
  [shoeParseTrees dq,:rest str]

bFileNext(fn,s) ==
  bDelay(function bFileNext1,[fn,s])
 
bFileNext1(fn,s)==
  bStreamNull s=> ["nullstream"]
  dq := first s
  shoeFileLines(shoeDQlines dq,fn)
  bAppend(shoeParseTrees dq,bFileNext(fn,rest s))
 
shoeParseTrees dq==
  toklist := dqToList dq
  toklist = nil => []
  shoeOutParse toklist
 
shoeTreeConstruct (str)==
  [shoeParseTrees first str, :rest str]
 
shoeDQlines dq==
  a:= CDAAR shoeLastTokPosn dq
  b:= CDAAR shoeFirstTokPosn dq
  streamTake (a-b+1,first shoeFirstTokPosn dq)
 
streamTake(n,s)==
  bStreamNull s => nil
  n=0 => nil
  [first s,:streamTake(n-1, rest s)]
 
shoeFileLines (lines,fn) ==
  shoeFileLine( '" ",fn)
  for line in lines repeat 
    shoeFileLine (shoeAddComment line,fn)
  shoeFileLine ('" ",fn)
 
shoeConsoleLines lines ==
  shoeConsole '" "
  for line in lines repeat
    shoeConsole shoeAddComment line
  shoeConsole '" "
 
shoeFileLine(x, stream) ==
    writeLine(x, stream)
    x
 
shoeFileTrees(s,st)==
  while not bStreamNull s repeat
    a:= first s
    if a is ["+LINE",:.]
    then shoeFileLine(second a,st)
    else 
      reallyPrettyPrint(a,st)
      TERPRI st
    s:= rest s
 
shoeConsoleTrees s ==
  while not bStreamPackageNull s repeat
    fn:=stripm(first s,namespace .,namespace BOOTTRAN)
    reallyPrettyPrint fn
    s:= rest s
 
shoeAddComment l==  
  strconc('"; ", first l)

shoeOutParse toks ==
  ps := makeParserState toks
  bpFirstTok ps
  found :=
    try bpOutItem ps
    catch(e: BootParserException) => e
  found = 'TRAPPED => nil
  not bStreamNull parserTokens ps =>
    bpGeneralErrorHere ps
    nil
  parserTrees ps = nil =>
    bpGeneralErrorHere ps
    nil
  first parserTrees ps
 
++ Generate a global signature declaration for symbol `n'.
genDeclaration(n,t) ==
  t is ["%Mapping",:.] => ["DECLAIM",["FTYPE",bfType t,n]]
  t is ["%Forall",vars,t'] =>
    vars = nil => genDeclaration(n,t')
    if symbol? vars then
      vars := [vars]
    genDeclaration(n,applySubst([[v,:"*"] for v in vars],t'))
  ["DECLAIM",["TYPE",bfType t,n]]

++ Translate the signature declaration `d' to its Lisp equivalent.
translateSignatureDeclaration d ==
  case d of 
    %Signature(n,t) => genDeclaration(n,t)
    otherwise => coreError '"signature expected"  

++ A non declarative expression `expr' appears at toplevel and its
++ translation needs embeddeding in an `EVAL-WHEN'.
translateToplevelExpression expr ==
  expr' := rest rest shoeCompTran ["LAMBDA",nil,expr]
  -- replace "DECLARE"s with "DECLAIM"s, as the former can't appear
  -- at toplevel.
  for t in expr' repeat
    t is ["DECLARE",:.] =>
      t.first := "DECLAIM"
  #expr' > 1 => ["PROGN",:expr']
  first expr'

inAllContexts x ==
  ["EVAL-WHEN",[KEYWORD::COMPILE_-TOPLEVEL,
                  KEYWORD::LOAD_-TOPLEVEL,
                    KEYWORD::EXECUTE], x]

atLoadOrExecutionTime x ==
  ["EVAL-WHEN",[KEYWORD::LOAD_-TOPLEVEL,KEYWORD::EXECUTE],x]

exportNames ns ==
  ns = nil => nil
  [inAllContexts ["EXPORT",quote ns]]

packageBody(x,p) ==
  x is ['%Import,['%Namespace,ns]] =>
    user :=
      p = nil => nil
      [symbolName p]
    ns is 'System =>
      ['COND,
        [['%hasFeature,KEYWORD::COMMON_-LISP],['USE_-PACKAGE,'"COMMON-LISP",:user]],
           ['T,['USE_-PACKAGE,'"LISP",:user]]]
    z :=
      ns is ['DOT,'System,'Foreign] =>
        %hasFeature KEYWORD::SBCL => 'SB_-ALIEN
        %hasFeature KEYWORD::ECL => 'FFI
        return nil
      ident? ns => ns
      bfSpecificErrorHere '"invalid namespace"
    ['USE_-PACKAGE,symbolName z,:user]
  x is ['PROGN,:.] => [x.op,:[packageBody(y,p) for y in x.args]]
  x

translateToplevel(ps,b,export?) ==
  b isnt [.,:.] => [b]  -- generally happens in interactive mode.
  b is ["TUPLE",:xs] => coreError '"invalid AST"
  case b of
    %Signature(op,t) => [genDeclaration(op,t)]
    %Definition(op,args,body) =>
      bfDef(parserLoadUnit ps,op,args,translateForm body).args

    %Module(m,ns,ds) =>
      $currentModuleName := m 
      $foreignsDefsForCLisp := nil
      [["PROVIDE", symbolName m], :exportNames ns,
        :[first translateToplevel(ps,d,true) for d in ds]]

    %Import(m) =>
      m is ['%Namespace,n] => [inAllContexts packageBody(b,nil)]
      if getOptionValue "import" ~= '"skip" then
        bootImport symbolName m
      [["IMPORT-MODULE", symbolName m]]

    %ImportSignature(x, sig, dom) =>
      genImportDeclaration(x, sig, dom)

    %TypeAlias(lhs, rhs) => [genTypeAlias(lhs,rhs)]

    %ConstantDefinition(lhs,rhs) =>
      lhs is ['%Namespace,ns] =>
        [['DEFPACKAGE,symbolName ns],inAllContexts packageBody(rhs,ns)]
      sig := nil
      if lhs is ["%Signature",n,t] then
        sig := genDeclaration(n,t)
        lhs := n
      $constantIdentifiers := [lhs,:$constantIdentifiers]
      [["DEFCONSTANT",lhs,translateForm rhs]]

    %Assignment(lhs,rhs) =>
      sig := nil
      if lhs is ["%Signature",n,t] then
        sig := genDeclaration(n,t)
        lhs := n
      $InteractiveMode => [["SETF",lhs,rhs]]
      [["DEFPARAMETER",lhs,translateForm rhs]]

    %Macro(op,args,body) =>
      bfMDef(parserLoadUnit ps,op,args,translateForm body)

    %Structure(t,alts) =>
      alts is ['%Record,fields,accessors] =>
        bfRecordDef(parserLoadUnit ps,t,fields,accessors)
      alts is [['Enumeration,:csts]] => [bfEnum(t,csts)]
      [bfCreateDef(parserLoadUnit ps,alt) for alt in alts]

    %Namespace n =>
      $activeNamespace := symbolName n
      [["IN-PACKAGE",symbolName n]]

    %Lisp s => shoeReadLispString(s,0)

    otherwise =>
      [translateToplevelExpression translateForm b]

shoeAddbootIfNec s ==
  ext := '".boot"
  n1 := #ext - 1
  n2 := #s - n1 - 1
  and/[stringChar(ext,k) = stringChar(s,n2 + k) for k in 0..n1] => s
  strconc(s,ext)
 
shoeRemovebootIfNec s == 
  shoeRemoveStringIfNec('".boot",s)

shoeRemoveStringIfNec(str,s)==
  n := stringSuffix?(str,s) => subString(s,0,n)
  s
 
--%
 
shoeItem (str)==
  dq:=first str
  [[[first line for line in  shoeDQlines dq]],:rest str]
 
stripm (x,pk,bt)==
  x isnt [.,:.] =>
    symbol? x =>
      symbolScope x = bt => makeSymbol(symbolName x,pk)
      x
    x
  [stripm(first x,pk,bt),:stripm(rest x,pk,bt)]
 
shoePCompile  fn==
    fn:=stripm(fn,namespace .,namespace BOOTTRAN)
    fn is ['DEFUN,name,bv,:body]=>
          COMPILE (name,['LAMBDA,bv,:body])
    EVAL fn
 
shoePCompileTrees s==
  while not bStreamNull s repeat
    reallyPrettyPrint shoePCompile first s
    s := rest s
 
bStreamPackageNull s==
  in namespace BOOTTRAN do
    bStreamNull s
 
PSTTOMC string==
  shoePCompileTrees shoeTransformString string
 
BOOTLOOP() ==
  a := readLine $stdin
  #a=0=>
    writeLine '"Boot Loop; to exit type ] "
    BOOTLOOP()
  shoePrefix? ('")console",a) =>
    stream := $stdio
    PSTTOMC bRgen stream
    BOOTLOOP()
  stringChar(a,0) = char "]" => nil
  PSTTOMC [a]
  BOOTLOOP()
 
BOOTPO() ==
  a := readLine $stdin
  #a=0=>
    writeLine '"Boot Loop; to exit type ] "
    BOOTPO()
  shoePrefix? ('")console",a) =>
    stream := $stdio
    PSTOUT bRgen stream
    BOOTPO()
  stringChar(a,0) = char "]" => nil
  PSTOUT [a]
  BOOTPO()
 
PSTOUT string==
  in namespace BOOTTRAN do
    shoeConsoleTrees shoeTransformString string

defaultBootToLispFile file ==
  strconc(pathBasename file, '".clisp")

getIntermediateLispFile(file,options) ==
  out := getOutputPathname options or return defaultBootToLispFile file
  strconc(shoeRemoveStringIfNec(strconc('".",$faslType),filePathString out),'".clisp")
  

translateBootFile(progname, options, file) ==
  outFile := getOutputPathname options or defaultBootToLispFile file
  BOOTTOCL(file, ENOUGH_-NAMESTRING outFile)

retainFile? ext ==
  Option 'all in $FilesToRetain or Option 'yes in $FilesToRetain => true
  Option 'no in $FilesToRetain => false
  Option ext in $FilesToRetain

compileBootHandler(progname, options, file) ==
  intFile := BOOTTOCL(file, getIntermediateLispFile(file,options))
  errorCount() ~= 0 => nil
  intFile => 
    objFile := compileLispHandler(progname, options, intFile)
    if not retainFile? 'lisp then
      DELETE_-FILE intFile
    objFile
  nil

associateRequestWithFileType(Option '"translate", '"boot", 
                             function translateBootFile)

associateRequestWithFileType(Option '"compile", '"boot", 
                             function compileBootHandler)

--% Runtime support

++ Load native dynamically linked module
loadNativeModule m ==
  m := strconc($NativeModulePrefix,m,$NativeModuleExt)
  %hasFeature KEYWORD::SBCL =>
    apply(bfColonColon("SB-ALIEN","LOAD-SHARED-OBJECT"),
          [m,KEYWORD::DONT_-SAVE,true])
  %hasFeature KEYWORD::CLISP =>
    EVAL [bfColonColon("FFI","DEFAULT-FOREIGN-LIBRARY"), m]
  %hasFeature KEYWORD::ECL =>
    EVAL [bfColonColon("FFI","LOAD-FOREIGN-LIBRARY"), m]
  %hasFeature KEYWORD::CLOZURE =>
    EVAL [bfColonColon("CCL","OPEN-SHARED-LIBRARY"), m]
  coreError '"don't know how to load a dynamically linked module"

loadSystemRuntimeCore() ==
  %hasFeature KEYWORD::ECL or %hasFeature KEYWORD::GCL => nil
  loadNativeModule '"open-axiom-core"