2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
10 import Analysis.TaskStateAnalysis.FlagState;
11 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
12 import Analysis.TaskStateAnalysis.Predicate;
14 public class BuildCode {
17 Hashtable paramstable;
22 String localsprefix="___locals___";
23 String paramsprefix="___params___";
24 public static boolean GENERATEPRECISEGC=false;
25 public static String PREFIX="";
26 public static String arraytype="ArrayObject";
29 private int maxtaskparams=0;
30 private int maxcount=0;
31 ClassDescriptor[] cdarray;
32 TypeDescriptor[] arraytable;
34 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
36 this.temptovar=temptovar;
37 paramstable=new Hashtable();
38 tempstable=new Hashtable();
39 fieldorder=new Hashtable();
40 flagorder=new Hashtable();
41 this.typeutil=typeutil;
42 virtualcalls=new Virtual(state);
45 /** The buildCode method outputs C code for all the methods. The Flat
46 * versions of the methods must already be generated and stored in
47 * the State object. */
49 public void buildCode() {
50 /* Create output streams to write to */
51 PrintWriter outclassdefs=null;
52 PrintWriter outstructs=null;
53 PrintWriter outrepairstructs=null;
54 PrintWriter outmethodheader=null;
55 PrintWriter outmethod=null;
56 PrintWriter outvirtual=null;
57 PrintWriter outtask=null;
58 PrintWriter outtaskdefs=null;
59 PrintWriter outoptionalarrays=null;
60 PrintWriter optionalheaders=null;
63 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
64 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
65 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
66 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
67 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
69 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
70 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
72 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
73 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
76 if (state.structfile!=null) {
77 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
79 } catch (Exception e) {
84 /* Build the virtual dispatch tables */
85 buildVirtualTables(outvirtual);
88 outmethodheader.println("#ifndef METHODHEADERS_H");
89 outmethodheader.println("#define METHODHEADERS_H");
90 outmethodheader.println("#include \"structdefs.h\"");
92 /* Output Structures */
93 outputStructs(outstructs);
95 // Output the C class declarations
96 // These could mutually reference each other
97 outputClassDeclarations(outclassdefs);
99 /* Outputs task structures if this is a task program */
101 outputTaskTypes(outtask);
103 // Output function prototypes and structures for parameters
104 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
105 while(it.hasNext()) {
106 ClassDescriptor cn=(ClassDescriptor)it.next();
107 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
109 outclassdefs.close();
112 /* Map flags to integers */
113 /* The runtime keeps track of flags using these integers */
114 it=state.getClassSymbolTable().getDescriptorsIterator();
115 while(it.hasNext()) {
116 ClassDescriptor cn=(ClassDescriptor)it.next();
120 generateTaskStructs(outstructs, outmethodheader);
123 /* Build the actual methods */
124 outputMethods(outmethod);
127 outputTaskCode(outtaskdefs, outmethod);
129 } else if (state.main!=null) {
130 /* Generate main method */
131 outputMainMethod(outmethod);
133 outmethodheader.println("#endif");
134 outmethodheader.close();
138 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
139 outstructs.println("#endif");
142 /* Generate information for task with optional parameters */
143 if (state.TASK&&state.OPTIONAL){
144 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
145 outoptionalarrays.close();
148 /* Output structure definitions for repair tool */
149 if (state.structfile!=null) {
150 buildRepairStructs(outrepairstructs);
151 outrepairstructs.close();
155 private void outputMainMethod(PrintWriter outmethod) {
156 outmethod.println("int main(int argc, const char *argv[]) {");
157 outmethod.println(" int i;");
158 if (GENERATEPRECISEGC) {
159 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
161 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
164 outmethod.println("initializethreads();");
166 outmethod.println(" for(i=1;i<argc;i++) {");
167 outmethod.println(" int length=strlen(argv[i]);");
168 if (GENERATEPRECISEGC) {
169 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
171 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
173 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
174 outmethod.println(" }");
177 MethodDescriptor md=typeutil.getMain();
178 ClassDescriptor cd=typeutil.getMainClass();
180 outmethod.println(" {");
181 if (GENERATEPRECISEGC) {
182 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
183 outmethod.println("1, NULL,"+"stringarray};");
184 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
186 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
187 outmethod.println(" }");
190 outmethod.println("pthread_mutex_lock(&gclistlock);");
191 outmethod.println("threadcount--;");
192 outmethod.println("pthread_cond_signal(&gccond);");
193 outmethod.println("pthread_mutex_unlock(&gclistlock);");
194 outmethod.println("pthread_exit(NULL);");
196 outmethod.println("}");
199 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
200 /* Compile task based program */
201 outtaskdefs.println("#include \"task.h\"");
202 outtaskdefs.println("#include \"methodheaders.h\"");
203 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
204 while(taskit.hasNext()) {
205 TaskDescriptor td=(TaskDescriptor)taskit.next();
206 FlatMethod fm=state.getMethodFlat(td);
207 generateFlatMethod(fm, outmethod);
208 generateTaskDescriptor(outtaskdefs, fm, td);
211 //Output task descriptors
212 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
213 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
215 while(taskit.hasNext()) {
216 TaskDescriptor td=(TaskDescriptor)taskit.next();
220 outtaskdefs.println(",");
221 outtaskdefs.print("&task_"+td.getSafeSymbol());
223 outtaskdefs.println("};");
225 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
228 private void outputMethods(PrintWriter outmethod) {
229 outmethod.println("#include \"methodheaders.h\"");
230 outmethod.println("#include \"virtualtable.h\"");
231 outmethod.println("#include <runtime.h>");
233 outmethod.println("#include <thread.h>");
234 if (state.main!=null) {
235 outmethod.println("#include <string.h>");
237 if (state.CONSCHECK) {
238 outmethod.println("#include \"checkers.h\"");
240 //Store the sizes of classes & array elements
241 generateSizeArray(outmethod);
243 //Store table of supertypes
244 generateSuperTypeTable(outmethod);
246 //Store the layout of classes
247 generateLayoutStructs(outmethod);
249 /* Generate code for methods */
250 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
251 while(classit.hasNext()) {
252 ClassDescriptor cn=(ClassDescriptor)classit.next();
253 Iterator methodit=cn.getMethods();
254 while(methodit.hasNext()) {
255 /* Classify parameters */
256 MethodDescriptor md=(MethodDescriptor)methodit.next();
257 FlatMethod fm=state.getMethodFlat(md);
258 if (!md.getModifiers().isNative())
259 generateFlatMethod(fm,outmethod);
264 private void outputStructs(PrintWriter outstructs) {
265 outstructs.println("#ifndef STRUCTDEFS_H");
266 outstructs.println("#define STRUCTDEFS_H");
267 outstructs.println("#include \"classdefs.h\"");
269 /* Output #defines that the runtime uses to determine type
270 * numbers for various objects it needs */
272 outstructs.println("#define STRINGARRAYTYPE "+
273 (state.getArrayNumber(
274 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
276 outstructs.println("#define OBJECTARRAYTYPE "+
277 (state.getArrayNumber(
278 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
281 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
282 outstructs.println("#define CHARARRAYTYPE "+
283 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
285 outstructs.println("#define BYTEARRAYTYPE "+
286 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
288 outstructs.println("#define BYTEARRAYARRAYTYPE "+
289 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
291 outstructs.println("#define NUMCLASSES "+state.numClasses());
293 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
294 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
295 outstructs.println("#define TAGARRAYTYPE "+
296 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
300 private void outputClassDeclarations(PrintWriter outclassdefs) {
302 outclassdefs.println("#include <pthread.h>");
303 outclassdefs.println("struct "+arraytype+";");
304 /* Start by declaring all structs */
305 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
306 while(it.hasNext()) {
307 ClassDescriptor cn=(ClassDescriptor)it.next();
308 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
310 outclassdefs.println("");
311 //Print out definition for array type
312 outclassdefs.println("struct "+arraytype+" {");
313 outclassdefs.println(" int type;");
315 outclassdefs.println(" pthread_t tid;");
316 outclassdefs.println(" void * lockentry;");
317 outclassdefs.println(" int lockcount;");
320 outclassdefs.println(" int flag;");
321 outclassdefs.println(" void * flagptr;");
322 if(state.OPTIONAL) outclassdefs.println(" int failedstatus;");
324 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
326 outclassdefs.println(" int ___length___;");
327 outclassdefs.println("};\n");
328 outclassdefs.println("extern int classsize[];");
329 outclassdefs.println("extern int hasflags[];");
330 outclassdefs.println("extern int * pointerarray[];");
331 outclassdefs.println("extern int supertypes[];");
334 private void outputTaskTypes(PrintWriter outtask) {
335 //Print out definitions for task types
336 outtask.println("#ifndef _TASK_H");
337 outtask.println("#define _TASK_H");
338 outtask.println("struct parameterdescriptor {");
339 outtask.println("int type;");
340 outtask.println("int numberterms;");
341 outtask.println("int *intarray;");
342 outtask.println("void * queue;");
343 outtask.println("int numbertags;");
344 outtask.println("int *tagarray;");
345 outtask.println("};");
347 outtask.println("struct taskdescriptor {");
348 outtask.println("void * taskptr;");
349 outtask.println("int numParameters;");
350 outtask.println("int numTotal;");
351 outtask.println("struct parameterdescriptor **descriptorarray;");
352 outtask.println("char * name;");
353 outtask.println("};");
354 outtask.println("extern struct taskdescriptor * taskarray[];");
355 outtask.println("extern numtasks;");
356 outtask.println("#endif");
359 private void buildRepairStructs(PrintWriter outrepairstructs) {
360 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
361 while(classit.hasNext()) {
362 ClassDescriptor cn=(ClassDescriptor)classit.next();
363 outrepairstructs.println("structure "+cn.getSymbol()+" {");
364 outrepairstructs.println(" int __type__;");
366 outrepairstructs.println(" int __flag__;");
367 outrepairstructs.println(" int __flagptr__;");
369 printRepairStruct(cn, outrepairstructs);
370 outrepairstructs.println("}\n");
373 for(int i=0;i<state.numArrays();i++) {
374 TypeDescriptor tdarray=arraytable[i];
375 TypeDescriptor tdelement=tdarray.dereference();
376 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
377 outrepairstructs.println(" int __type__;");
378 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
379 outrepairstructs.println(" int length;");
381 // Need to add support to repair tool for this
382 if (tdelement.isClass()||tdelement.isArray())
383 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
385 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
387 outrepairstructs.println("}\n");
392 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
393 ClassDescriptor sp=cn.getSuperDesc();
395 printRepairStruct(sp, output);
397 Vector fields=(Vector)fieldorder.get(cn);
399 for(int i=0;i<fields.size();i++) {
400 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
401 if (fd.getType().isArray()) {
402 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
403 } else if (fd.getType().isClass())
404 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
405 else if (fd.getType().isFloat())
406 output.println(" int "+fd.getSymbol()+"; /* really float */");
408 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
412 /** This method outputs TaskDescriptor information */
413 void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
414 for (int i=0;i<task.numParameters();i++) {
415 VarDescriptor param_var=task.getParameter(i);
416 TypeDescriptor param_type=task.getParamType(i);
417 FlagExpressionNode param_flag=task.getFlag(param_var);
418 TagExpressionList param_tag=task.getTag(param_var);
421 if (param_flag==null) {
422 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
423 output.println("0x0, 0x0 };");
427 DNFFlag dflag=param_flag.getDNF();
428 dnfterms=dflag.size();
430 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
431 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
432 for(int j=0;j<dflag.size();j++) {
435 Vector term=dflag.get(j);
438 for(int k=0;k<term.size();k++) {
439 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
440 FlagDescriptor fd=dfa.getFlag();
441 boolean negated=dfa.getNegated();
442 int flagid=1<<((Integer)flags.get(fd)).intValue();
447 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
449 output.println("};");
452 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
453 //BUG...added next line to fix, test with any task program
455 for(int j=0;j<param_tag.numTags();j++) {
458 /* for each tag we need */
459 /* which slot it is */
460 /* what type it is */
461 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
462 TempDescriptor tmp=param_tag.getTemp(j);
463 int slot=fm.getTagInt(tmp);
464 output.println(slot+", "+state.getTagId(tvd.getTag()));
466 output.println("};");
468 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
469 output.println("/* type */"+param_type.getClassDesc().getId()+",");
470 output.println("/* number of DNF terms */"+dnfterms+",");
471 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
472 output.println("0,");
473 //BUG, added next line to fix and else statement...test
474 //with any task program
476 output.println("/* number of tags */"+param_tag.numTags()+",");
478 output.println("/* number of tags */ 0,");
479 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
480 output.println("};");
484 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
485 for (int i=0;i<task.numParameters();i++) {
488 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
490 output.println("};");
492 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
493 output.println("&"+task.getSafeSymbol()+",");
494 output.println("/* number of parameters */" +task.numParameters() + ",");
495 int numtotal=task.numParameters()+fm.numTags();
496 output.println("/* number total parameters */" +numtotal + ",");
497 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
498 output.println("\""+task.getSymbol()+"\"");
499 output.println("};");
503 /** The buildVirtualTables method outputs the virtual dispatch
504 * tables for methods. */
506 private void buildVirtualTables(PrintWriter outvirtual) {
507 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
508 while(classit.hasNext()) {
509 ClassDescriptor cd=(ClassDescriptor)classit.next();
510 if (virtualcalls.getMethodCount(cd)>maxcount)
511 maxcount=virtualcalls.getMethodCount(cd);
513 MethodDescriptor[][] virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
515 /* Fill in virtual table */
516 classit=state.getClassSymbolTable().getDescriptorsIterator();
517 while(classit.hasNext()) {
518 ClassDescriptor cd=(ClassDescriptor)classit.next();
519 fillinRow(cd, virtualtable, cd.getId());
522 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
523 Iterator arrayit=state.getArrayIterator();
524 while(arrayit.hasNext()) {
525 TypeDescriptor td=(TypeDescriptor)arrayit.next();
526 int id=state.getArrayNumber(td);
527 fillinRow(objectcd, virtualtable, id+state.numClasses());
530 outvirtual.print("void * virtualtable[]={");
531 boolean needcomma=false;
532 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
533 for(int j=0;j<maxcount;j++) {
535 outvirtual.print(", ");
536 if (virtualtable[i][j]!=null) {
537 MethodDescriptor md=virtualtable[i][j];
538 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
540 outvirtual.print("0");
544 outvirtual.println("");
546 outvirtual.println("};");
550 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
551 /* Get inherited methods */
552 if (cd.getSuperDesc()!=null)
553 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
554 /* Override them with our methods */
555 for(Iterator it=cd.getMethods();it.hasNext();) {
556 MethodDescriptor md=(MethodDescriptor)it.next();
557 if (md.isStatic()||md.getReturnType()==null)
559 int methodnum=virtualcalls.getMethodNumber(md);
560 virtualtable[rownum][methodnum]=md;
564 /** Generate array that contains the sizes of class objects. The
565 * object allocation functions in the runtime use this
568 private void generateSizeArray(PrintWriter outclassdefs) {
569 outclassdefs.print("int classsize[]={");
570 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
571 cdarray=new ClassDescriptor[state.numClasses()];
572 while(it.hasNext()) {
573 ClassDescriptor cd=(ClassDescriptor)it.next();
574 cdarray[cd.getId()]=cd;
576 boolean needcomma=false;
577 for(int i=0;i<state.numClasses();i++) {
579 outclassdefs.print(", ");
580 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
584 arraytable=new TypeDescriptor[state.numArrays()];
586 Iterator arrayit=state.getArrayIterator();
587 while(arrayit.hasNext()) {
588 TypeDescriptor td=(TypeDescriptor)arrayit.next();
589 int id=state.getArrayNumber(td);
593 for(int i=0;i<state.numArrays();i++) {
595 outclassdefs.print(", ");
596 TypeDescriptor tdelement=arraytable[i].dereference();
597 if (tdelement.isArray()||tdelement.isClass())
598 outclassdefs.print("sizeof(void *)");
600 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
604 outclassdefs.println("};");
607 /** Constructs params and temp objects for each method or task.
608 * These objects tell the compiler which temps need to be
611 private void generateTempStructs(FlatMethod fm) {
612 MethodDescriptor md=fm.getMethod();
613 TaskDescriptor task=fm.getTask();
615 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
617 paramstable.put(md, objectparams);
619 paramstable.put(task, objectparams);
621 for(int i=0;i<fm.numParameters();i++) {
622 TempDescriptor temp=fm.getParameter(i);
623 TypeDescriptor type=temp.getType();
624 if ((type.isPtr()||type.isArray())&&GENERATEPRECISEGC)
625 objectparams.addPtr(temp);
627 objectparams.addPrim(temp);
630 for(int i=0;i<fm.numTags();i++) {
631 TempDescriptor temp=fm.getTag(i);
632 if (GENERATEPRECISEGC)
633 objectparams.addPtr(temp);
635 objectparams.addPrim(temp);
638 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
640 tempstable.put(md, objecttemps);
642 tempstable.put(task, objecttemps);
644 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
645 FlatNode fn=(FlatNode)nodeit.next();
646 TempDescriptor[] writes=fn.writesTemps();
647 for(int i=0;i<writes.length;i++) {
648 TempDescriptor temp=writes[i];
649 TypeDescriptor type=temp.getType();
650 if ((type.isPtr()||type.isArray())&&GENERATEPRECISEGC)
651 objecttemps.addPtr(temp);
653 objecttemps.addPrim(temp);
658 /** This method outputs the following information about classes
660 * (1) For classes, what are the locations of pointers.
661 * (2) For arrays, does the array contain pointers or primitives.
662 * (3) For classes, does the class contain flags.
665 private void generateLayoutStructs(PrintWriter output) {
666 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
667 while(it.hasNext()) {
668 ClassDescriptor cn=(ClassDescriptor)it.next();
669 output.println("int "+cn.getSafeSymbol()+"_pointers[]={");
670 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
672 while(allit.hasNext()) {
673 FieldDescriptor fd=(FieldDescriptor)allit.next();
674 TypeDescriptor type=fd.getType();
675 if (type.isPtr()||type.isArray())
679 allit=cn.getFieldTable().getAllDescriptorsIterator();
680 while(allit.hasNext()) {
681 FieldDescriptor fd=(FieldDescriptor)allit.next();
682 TypeDescriptor type=fd.getType();
683 if (type.isPtr()||type.isArray()) {
685 output.print("((int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
688 output.println("};");
690 output.println("int * pointerarray[]={");
691 boolean needcomma=false;
692 for(int i=0;i<state.numClasses();i++) {
693 ClassDescriptor cn=cdarray[i];
697 output.print(cn.getSafeSymbol()+"_pointers");
700 for(int i=0;i<state.numArrays();i++) {
702 output.println(", ");
703 TypeDescriptor tdelement=arraytable[i].dereference();
704 if (tdelement.isArray()||tdelement.isClass())
705 output.print("((int *)1)");
711 output.println("};");
713 output.println("int hasflags[]={");
714 for(int i=0;i<state.numClasses();i++) {
715 ClassDescriptor cn=cdarray[i];
717 output.println(", ");
724 output.println("};");
727 /** Print out table to give us supertypes */
728 private void generateSuperTypeTable(PrintWriter output) {
729 output.println("int supertypes[]={");
730 boolean needcomma=false;
731 for(int i=0;i<state.numClasses();i++) {
732 ClassDescriptor cn=cdarray[i];
736 if (cn.getSuperDesc()!=null) {
737 ClassDescriptor cdsuper=cn.getSuperDesc();
738 output.print(cdsuper.getId());
742 output.println("};");
745 /** Force consistent field ordering between inherited classes. */
747 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
748 ClassDescriptor sp=cn.getSuperDesc();
750 printClassStruct(sp, classdefout);
752 if (!fieldorder.containsKey(cn)) {
753 Vector fields=new Vector();
754 fieldorder.put(cn,fields);
755 Iterator fieldit=cn.getFields();
756 while(fieldit.hasNext()) {
757 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
758 if (sp==null||!sp.getFieldTable().contains(fd.getSymbol()))
762 Vector fields=(Vector)fieldorder.get(cn);
764 for(int i=0;i<fields.size();i++) {
765 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
766 if (fd.getType().isClass()||fd.getType().isArray())
767 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
769 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
774 /* Map flags to integers consistently between inherited
777 private void mapFlags(ClassDescriptor cn) {
778 ClassDescriptor sp=cn.getSuperDesc();
782 if (!flagorder.containsKey(cn)) {
783 Hashtable flags=new Hashtable();
784 flagorder.put(cn,flags);
786 Hashtable superflags=(Hashtable)flagorder.get(sp);
787 Iterator superflagit=superflags.keySet().iterator();
788 while(superflagit.hasNext()) {
789 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
790 Integer number=(Integer)superflags.get(fd);
791 flags.put(fd, number);
792 if ((number.intValue()+1)>max)
793 max=number.intValue()+1;
797 Iterator flagit=cn.getFlags();
798 while(flagit.hasNext()) {
799 FlagDescriptor fd=(FlagDescriptor)flagit.next();
800 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
801 flags.put(fd, new Integer(max++));
807 /** This function outputs (1) structures that parameters are
808 * passed in (when PRECISE GC is enabled) and (2) function
809 * prototypes for the methods */
811 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
812 /* Output class structure */
813 classdefout.println("struct "+cn.getSafeSymbol()+" {");
814 classdefout.println(" int type;");
816 classdefout.println(" pthread_t tid;");
817 classdefout.println(" void * lockentry;");
818 classdefout.println(" int lockcount;");
822 classdefout.println(" int flag;");
823 classdefout.println(" void * flagptr;");
824 if (state.OPTIONAL) classdefout.println(" int failedstatus;");
826 printClassStruct(cn, classdefout);
827 classdefout.println("};\n");
829 /* Cycle through methods */
830 Iterator methodit=cn.getMethods();
831 while(methodit.hasNext()) {
832 /* Classify parameters */
833 MethodDescriptor md=(MethodDescriptor)methodit.next();
834 FlatMethod fm=state.getMethodFlat(md);
835 generateTempStructs(fm);
837 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
838 TempObject objecttemps=(TempObject) tempstable.get(md);
840 /* Output parameter structure */
841 if (GENERATEPRECISEGC) {
842 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
843 output.println(" int size;");
844 output.println(" void * next;");
845 for(int i=0;i<objectparams.numPointers();i++) {
846 TempDescriptor temp=objectparams.getPointer(i);
847 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
849 output.println("};\n");
852 /* Output temp structure */
853 if (GENERATEPRECISEGC) {
854 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
855 output.println(" int size;");
856 output.println(" void * next;");
857 for(int i=0;i<objecttemps.numPointers();i++) {
858 TempDescriptor temp=objecttemps.getPointer(i);
859 if (temp.getType().isNull())
860 output.println(" void * "+temp.getSafeSymbol()+";");
862 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
864 output.println("};\n");
867 /* Output method declaration */
868 if (md.getReturnType()!=null) {
869 if (md.getReturnType().isClass()||md.getReturnType().isArray())
870 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
872 headersout.print(md.getReturnType().getSafeSymbol()+" ");
874 //catch the constructor case
875 headersout.print("void ");
876 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
878 boolean printcomma=false;
879 if (GENERATEPRECISEGC) {
880 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
884 //output parameter list
885 for(int i=0;i<objectparams.numPrimitives();i++) {
886 TempDescriptor temp=objectparams.getPrimitive(i);
888 headersout.print(", ");
890 if (temp.getType().isClass()||temp.getType().isArray())
891 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
893 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
895 headersout.println(");\n");
900 /** This function outputs (1) structures that parameters are
901 * passed in (when PRECISE GC is enabled) and (2) function
902 * prototypes for the tasks */
904 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
905 /* Cycle through tasks */
906 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
908 while(taskit.hasNext()) {
909 /* Classify parameters */
910 TaskDescriptor task=(TaskDescriptor)taskit.next();
911 FlatMethod fm=state.getMethodFlat(task);
912 generateTempStructs(fm);
914 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
915 TempObject objecttemps=(TempObject) tempstable.get(task);
917 /* Output parameter structure */
918 if (GENERATEPRECISEGC) {
919 output.println("struct "+task.getSafeSymbol()+"_params {");
921 output.println(" int size;");
922 output.println(" void * next;");
923 for(int i=0;i<objectparams.numPointers();i++) {
924 TempDescriptor temp=objectparams.getPointer(i);
925 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
928 output.println("};\n");
929 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
930 maxtaskparams=objectparams.numPointers()+fm.numTags();
934 /* Output temp structure */
935 if (GENERATEPRECISEGC) {
936 output.println("struct "+task.getSafeSymbol()+"_locals {");
937 output.println(" int size;");
938 output.println(" void * next;");
939 for(int i=0;i<objecttemps.numPointers();i++) {
940 TempDescriptor temp=objecttemps.getPointer(i);
941 if (temp.getType().isNull())
942 output.println(" void * "+temp.getSafeSymbol()+";");
943 else if(temp.getType().isTag())
944 output.println(" struct "+
945 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
947 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
949 output.println("};\n");
952 /* Output task declaration */
953 headersout.print("void " + task.getSafeSymbol()+"(");
955 boolean printcomma=false;
956 if (GENERATEPRECISEGC) {
957 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
959 headersout.print("void * parameterarray[]");
960 headersout.println(");\n");
964 /** Generate code for FlatMethod fm. */
966 private void generateFlatMethod(FlatMethod fm, PrintWriter output) {
967 MethodDescriptor md=fm.getMethod();
968 TaskDescriptor task=fm.getTask();
970 ClassDescriptor cn=md!=null?md.getClassDesc():null;
972 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null?md:task);
974 generateHeader(fm, md!=null?md:task,output);
976 TempObject objecttemp=(TempObject) tempstable.get(md!=null?md:task);
979 if (GENERATEPRECISEGC) {
981 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
983 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
985 output.print(objecttemp.numPointers()+",");
986 output.print(paramsprefix);
987 for(int j=0;j<objecttemp.numPointers();j++)
988 output.print(", NULL");
989 output.println("};");
992 for(int i=0;i<objecttemp.numPrimitives();i++) {
993 TempDescriptor td=objecttemp.getPrimitive(i);
994 TypeDescriptor type=td.getType();
996 output.println(" void * "+td.getSafeSymbol()+";");
997 else if (type.isClass()||type.isArray())
998 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1000 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1003 /* Generate labels first */
1004 HashSet tovisit=new HashSet();
1005 HashSet visited=new HashSet();
1007 Hashtable nodetolabel=new Hashtable();
1008 tovisit.add(fm.getNext(0));
1009 FlatNode current_node=null;
1012 //Node needs a label if it is
1013 while(!tovisit.isEmpty()) {
1014 FlatNode fn=(FlatNode)tovisit.iterator().next();
1017 for(int i=0;i<fn.numNext();i++) {
1018 FlatNode nn=fn.getNext(i);
1020 //1) Edge >1 of node
1021 nodetolabel.put(nn,new Integer(labelindex++));
1023 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1027 nodetolabel.put(nn,new Integer(labelindex++));
1032 if (state.THREAD&&GENERATEPRECISEGC) {
1033 output.println("checkcollect(&"+localsprefix+");");
1036 //Do the actual code generation
1037 tovisit=new HashSet();
1038 visited=new HashSet();
1039 tovisit.add(fm.getNext(0));
1040 while(current_node!=null||!tovisit.isEmpty()) {
1041 if (current_node==null) {
1042 current_node=(FlatNode)tovisit.iterator().next();
1043 tovisit.remove(current_node);
1045 visited.add(current_node);
1046 if (nodetolabel.containsKey(current_node))
1047 output.println("L"+nodetolabel.get(current_node)+":");
1048 if (state.INSTRUCTIONFAILURE) {
1050 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1053 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1055 if (current_node.numNext()==0) {
1057 generateFlatNode(fm, current_node, output);
1058 if (current_node.kind()!=FKind.FlatReturnNode) {
1059 output.println(" return;");
1062 } else if(current_node.numNext()==1) {
1064 generateFlatNode(fm, current_node, output);
1065 FlatNode nextnode=current_node.getNext(0);
1066 if (visited.contains(nextnode)) {
1067 output.println("goto L"+nodetolabel.get(nextnode)+";");
1070 current_node=nextnode;
1071 } else if (current_node.numNext()==2) {
1074 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1075 if (!visited.contains(current_node.getNext(1)))
1076 tovisit.add(current_node.getNext(1));
1077 if (visited.contains(current_node.getNext(0))) {
1078 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1081 current_node=current_node.getNext(0);
1082 } else throw new Error();
1086 output.println("}\n\n");
1089 /** Generate text string that corresponds to the Temp td. */
1090 private String generateTemp(FlatMethod fm, TempDescriptor td) {
1091 MethodDescriptor md=fm.getMethod();
1092 TaskDescriptor task=fm.getTask();
1093 TempObject objecttemps=(TempObject) tempstable.get(md!=null?md:task);
1095 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1096 return td.getSafeSymbol();
1099 if (objecttemps.isLocalPtr(td)) {
1100 return localsprefix+"."+td.getSafeSymbol();
1103 if (objecttemps.isParamPtr(td)) {
1104 return paramsprefix+"->"+td.getSafeSymbol();
1109 private void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
1111 case FKind.FlatAtomicEnterNode:
1112 generateFlatAtomicEnterNode(fm, (FlatAtomicEnterNode) fn, output);
1114 case FKind.FlatAtomicExitNode:
1115 generateFlatAtomicExitNode(fm, (FlatAtomicExitNode) fn, output);
1117 case FKind.FlatTagDeclaration:
1118 generateFlatTagDeclaration(fm, (FlatTagDeclaration) fn,output);
1120 case FKind.FlatCall:
1121 generateFlatCall(fm, (FlatCall) fn,output);
1123 case FKind.FlatFieldNode:
1124 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
1126 case FKind.FlatElementNode:
1127 generateFlatElementNode(fm, (FlatElementNode) fn,output);
1129 case FKind.FlatSetElementNode:
1130 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
1132 case FKind.FlatSetFieldNode:
1133 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
1136 generateFlatNew(fm, (FlatNew) fn,output);
1138 case FKind.FlatOpNode:
1139 generateFlatOpNode(fm, (FlatOpNode) fn,output);
1141 case FKind.FlatCastNode:
1142 generateFlatCastNode(fm, (FlatCastNode) fn,output);
1144 case FKind.FlatLiteralNode:
1145 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
1147 case FKind.FlatReturnNode:
1148 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
1151 output.println("/* nop */");
1153 case FKind.FlatBackEdge:
1154 if (state.THREAD&&GENERATEPRECISEGC) {
1155 output.println("checkcollect(&"+localsprefix+");");
1157 output.println("/* nop */");
1159 case FKind.FlatCheckNode:
1160 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
1162 case FKind.FlatFlagActionNode:
1163 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
1170 public void generateFlatAtomicEnterNode(FlatMethod fm, FlatAtomicEnterNode faen, PrintWriter output) {
1173 public void generateFlatAtomicExitNode(FlatMethod fm, FlatAtomicExitNode faen, PrintWriter output) {
1176 private void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
1177 if (state.CONSCHECK) {
1178 String specname=fcn.getSpec();
1179 String varname="repairstate___";
1180 output.println("{");
1181 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1183 TempDescriptor[] temps=fcn.getTemps();
1184 String[] vars=fcn.getVars();
1185 for(int i=0;i<temps.length;i++) {
1186 output.println(varname+"->"+vars[i]+"=(int)"+generateTemp(fm, temps[i])+";");
1189 output.println("if (doanalysis"+specname+"("+varname+")) {");
1190 output.println("free"+specname+"_state("+varname+");");
1191 output.println("} else {");
1192 output.println("/* Bad invariant */");
1193 output.println("free"+specname+"_state("+varname+");");
1194 output.println("abort_task();");
1195 output.println("}");
1196 output.println("}");
1200 private void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
1201 MethodDescriptor md=fc.getMethod();
1202 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1203 ClassDescriptor cn=md.getClassDesc();
1204 output.println("{");
1205 if (GENERATEPRECISEGC) {
1206 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1208 output.print(objectparams.numPointers());
1209 // output.print(objectparams.getUID());
1210 output.print(", & "+localsprefix);
1211 if (fc.getThis()!=null) {
1213 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
1215 for(int i=0;i<fc.numArgs();i++) {
1216 Descriptor var=md.getParameter(i);
1217 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1218 if (objectparams.isParamPtr(paramtemp)) {
1219 TempDescriptor targ=fc.getArg(i);
1221 TypeDescriptor td=md.getParamType(i);
1223 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ));
1225 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
1228 output.println("};");
1233 if (fc.getReturnTemp()!=null)
1234 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
1236 /* Do we need to do virtual dispatch? */
1237 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1238 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1242 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1243 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1245 output.print(md.getReturnType().getSafeSymbol()+" ");
1246 output.print("(*)(");
1248 boolean printcomma=false;
1249 if (GENERATEPRECISEGC) {
1250 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1255 for(int i=0;i<objectparams.numPrimitives();i++) {
1256 TempDescriptor temp=objectparams.getPrimitive(i);
1260 if (temp.getType().isClass()||temp.getType().isArray())
1261 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1263 output.print(temp.getType().getSafeSymbol());
1266 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1270 boolean needcomma=false;
1271 if (GENERATEPRECISEGC) {
1272 output.print("&__parameterlist__");
1275 if (fc.getThis()!=null) {
1276 TypeDescriptor ptd=md.getThis().getType();
1277 if (ptd.isClass()&&!ptd.isArray())
1278 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1279 output.print(generateTemp(fm,fc.getThis()));
1283 for(int i=0;i<fc.numArgs();i++) {
1284 Descriptor var=md.getParameter(i);
1285 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1286 if (objectparams.isParamPrim(paramtemp)) {
1287 TempDescriptor targ=fc.getArg(i);
1291 TypeDescriptor ptd=md.getParamType(i);
1292 if (ptd.isClass()&&!ptd.isArray())
1293 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1294 output.print(generateTemp(fm, targ));
1298 output.println(");");
1299 output.println(" }");
1302 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1303 Set subclasses=typeutil.getSubClasses(thiscd);
1304 if (subclasses==null)
1306 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1307 ClassDescriptor cd=(ClassDescriptor)classit.next();
1308 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1309 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1310 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1311 if (md.matches(matchmd))
1318 private void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
1319 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
1322 private void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
1323 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1324 throw new Error("Can't set array length");
1325 output.println(generateTemp(fm, fsfn.getDst())+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
1328 private void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
1329 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1332 if (elementtype.isArray()||elementtype.isClass())
1335 type=elementtype.getSafeSymbol()+" ";
1337 if (fen.needsBoundsCheck()) {
1338 output.println("if ("+generateTemp(fm, fen.getIndex())+"< 0 || "+generateTemp(fm, fen.getIndex())+" >= "+generateTemp(fm,fen.getSrc()) + "->___length___)");
1339 output.println("failedboundschk();");
1342 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
1345 private void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
1346 //TODO: need dynamic check to make sure this assignment is actually legal
1347 //Because Object[] could actually be something more specific...ie. Integer[]
1349 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
1352 if (elementtype.isArray()||elementtype.isClass())
1355 type=elementtype.getSafeSymbol()+" ";
1357 if (fsen.needsBoundsCheck()) {
1358 output.println("if ("+generateTemp(fm, fsen.getIndex())+"< 0 || "+generateTemp(fm, fsen.getIndex())+" >= "+generateTemp(fm,fsen.getDst()) + "->___length___)");
1359 output.println("failedboundschk();");
1362 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
1365 private void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
1366 if (fn.getType().isArray()) {
1367 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
1368 if (GENERATEPRECISEGC) {
1369 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
1371 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
1374 if (GENERATEPRECISEGC) {
1375 output.println(generateTemp(fm,fn.getDst())+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
1377 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
1383 private void generateFlatTagDeclaration(FlatMethod fm, FlatTagDeclaration fn, PrintWriter output) {
1384 if (GENERATEPRECISEGC) {
1385 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
1387 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+state.getTagId(fn.getType())+");");
1391 private void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
1393 if (fon.getRight()!=null)
1394 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
1395 else if (fon.getOp().getOp()==Operation.ASSIGN)
1396 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
1397 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
1398 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
1399 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
1400 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
1401 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
1402 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
1404 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
1407 private void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
1408 /* TODO: Do type check here */
1409 if (fcn.getType().isArray()) {
1411 } else if (fcn.getType().isClass())
1412 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
1414 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
1417 private void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
1418 if (fln.getValue()==null)
1419 output.println(generateTemp(fm, fln.getDst())+"=0;");
1420 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
1421 if (GENERATEPRECISEGC) {
1422 output.println(generateTemp(fm, fln.getDst())+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
1424 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
1426 } else if (fln.getType().isBoolean()) {
1427 if (((Boolean)fln.getValue()).booleanValue())
1428 output.println(generateTemp(fm, fln.getDst())+"=1;");
1430 output.println(generateTemp(fm, fln.getDst())+"=0;");
1431 } else if (fln.getType().isChar()) {
1432 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
1433 output.println(generateTemp(fm, fln.getDst())+"='"+st+"';");
1435 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
1438 private void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
1439 if (frn.getReturnTemp()!=null)
1440 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
1442 output.println("return;");
1445 private void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
1446 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
1449 /** This method generates header information for the method or
1450 * task referenced by the Descriptor des. */
1452 private void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output) {
1454 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
1455 MethodDescriptor md=null;
1456 TaskDescriptor task=null;
1457 if (des instanceof MethodDescriptor)
1458 md=(MethodDescriptor) des;
1460 task=(TaskDescriptor) des;
1462 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1464 if (md!=null&&md.getReturnType()!=null) {
1465 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1466 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1468 output.print(md.getReturnType().getSafeSymbol()+" ");
1470 //catch the constructor case
1471 output.print("void ");
1473 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1475 output.print(task.getSafeSymbol()+"(");
1477 boolean printcomma=false;
1478 if (GENERATEPRECISEGC) {
1480 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1482 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1488 for(int i=0;i<objectparams.numPrimitives();i++) {
1489 TempDescriptor temp=objectparams.getPrimitive(i);
1493 if (temp.getType().isClass()||temp.getType().isArray())
1494 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1496 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1498 output.println(") {");
1499 } else if (!GENERATEPRECISEGC) {
1500 /* Imprecise Task */
1501 output.println("void * parameterarray[]) {");
1502 /* Unpack variables */
1503 for(int i=0;i<objectparams.numPrimitives();i++) {
1504 TempDescriptor temp=objectparams.getPrimitive(i);
1505 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
1507 for(int i=0;i<fm.numTags();i++) {
1508 TempDescriptor temp=fm.getTag(i);
1509 int offset=i+objectparams.numPrimitives();
1510 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
1513 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
1514 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
1515 } else output.println(") {");
1518 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
1519 output.println("/* FlatFlagActionNode */");
1522 /* Process tag changes */
1523 Relation tagsettable=new Relation();
1524 Relation tagcleartable=new Relation();
1526 Iterator tagsit=ffan.getTempTagPairs();
1527 while (tagsit.hasNext()) {
1528 TempTagPair ttp=(TempTagPair) tagsit.next();
1529 TempDescriptor objtmp=ttp.getTemp();
1530 TagDescriptor tag=ttp.getTag();
1531 TempDescriptor tagtmp=ttp.getTagTemp();
1532 boolean tagstatus=ffan.getTagChange(ttp);
1534 tagsettable.put(objtmp, tagtmp);
1536 tagcleartable.put(objtmp, tagtmp);
1541 Hashtable flagandtable=new Hashtable();
1542 Hashtable flagortable=new Hashtable();
1544 /* Process flag changes */
1545 Iterator flagsit=ffan.getTempFlagPairs();
1546 while(flagsit.hasNext()) {
1547 TempFlagPair tfp=(TempFlagPair)flagsit.next();
1548 TempDescriptor temp=tfp.getTemp();
1549 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
1550 FlagDescriptor flag=tfp.getFlag();
1552 //Newly allocate objects that don't set any flags case
1553 if (flagortable.containsKey(temp)) {
1557 flagortable.put(temp,new Integer(mask));
1559 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
1560 boolean flagstatus=ffan.getFlagChange(tfp);
1563 if (flagortable.containsKey(temp)) {
1564 mask=((Integer)flagortable.get(temp)).intValue();
1567 flagortable.put(temp,new Integer(mask));
1569 int mask=0xFFFFFFFF;
1570 if (flagandtable.containsKey(temp)) {
1571 mask=((Integer)flagandtable.get(temp)).intValue();
1573 mask&=(0xFFFFFFFF^flagid);
1574 flagandtable.put(temp,new Integer(mask));
1580 HashSet flagtagset=new HashSet();
1581 flagtagset.addAll(flagortable.keySet());
1582 flagtagset.addAll(flagandtable.keySet());
1583 flagtagset.addAll(tagsettable.keySet());
1584 flagtagset.addAll(tagcleartable.keySet());
1586 Iterator ftit=flagtagset.iterator();
1587 while(ftit.hasNext()) {
1588 TempDescriptor temp=(TempDescriptor)ftit.next();
1591 Set tagtmps=tagcleartable.get(temp);
1592 if (tagtmps!=null) {
1593 Iterator tagit=tagtmps.iterator();
1594 while(tagit.hasNext()) {
1595 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
1596 if (GENERATEPRECISEGC)
1597 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
1599 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
1603 tagtmps=tagsettable.get(temp);
1604 if (tagtmps!=null) {
1605 Iterator tagit=tagtmps.iterator();
1606 while(tagit.hasNext()) {
1607 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
1608 if (GENERATEPRECISEGC)
1609 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
1611 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
1616 int andmask=0xFFFFFFF;
1618 if (flagortable.containsKey(temp))
1619 ormask=((Integer)flagortable.get(temp)).intValue();
1620 if (flagandtable.containsKey(temp))
1621 andmask=((Integer)flagandtable.get(temp)).intValue();
1622 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
1623 output.println("flagorandinit("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
1625 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
1630 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, HashSet>> safeexecution, Hashtable optionaltaskdescriptors) {
1633 headers.println("#include \"task.h\"\n\n");
1637 //STRUCT PREDICATEMEMBER
1638 headers.println("struct predicatemember{");
1639 headers.println("int type;");
1640 headers.println("int numdnfterms;");
1641 headers.println("int * flags;");
1642 headers.println("int numtags;");
1643 headers.println("int * tags;\n};\n\n");
1645 //STRUCT EXITFLAGSTATE
1646 headers.println("struct exitflagstate{");
1647 headers.println("int numflags;");
1648 headers.println("int * flags;");
1650 headers.println("int numtags;");
1651 headers.println("int * tags;");
1653 headers.println("\n};\n\n");
1656 headers.println("struct exitstates{");
1657 headers.println("int numexitflagstates;");
1658 headers.println("struct exitflagstate * exitflagstatearray;\n};\n\n");
1660 //STRUCT OPTIONALTASKDESCRIPTOR
1661 headers.println("struct optionaltaskdescriptor{");
1662 headers.println("struct taskdescriptor * task;");
1663 headers.println("int numpredicatemembers;");
1664 headers.println("struct predicatemember * predicatememberarray;");
1665 headers.println("int numexitstates;");
1666 headers.println("struct existates * exitstatesarray;\n};\n\n");
1668 //STRUCT FSANALYSISWRAPPER
1669 headers.println("struct fsanalysiswrapper{");
1670 headers.println("int numflags;");
1671 headers.println("int * flags;");
1672 headers.println("int numtags;");
1673 headers.println("int * tags;");
1674 headers.println("int numoptionaltaskdescriptors;");
1675 headers.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray;\n};\n\n");
1677 //STRUCT CLASSANALYSISWRAPPER
1678 headers.println("struct classanalyiswrapper{");
1679 headers.println("int type;");
1680 headers.println("int numfsanalysiswrappers;");
1681 headers.println("struct fsanalysiswrapper * fsanalysiswrapperarray;\n};\n\n");
1683 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1684 while(taskit.hasNext()) {
1685 TaskDescriptor td=(TaskDescriptor)taskit.next();
1686 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
1692 output.println("#include \"optionalstruct.h\"\n\n");
1693 HashSet processedcd = new HashSet();
1696 Enumeration e = safeexecution.keys();
1697 while (e.hasMoreElements()) {
1700 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
1701 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
1703 //Generate the struct of optionals
1704 if((Hashtable)optionaltaskdescriptors.get(cdtemp)==null) System.out.println("Was in cd :"+cdtemp.getSymbol());
1705 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
1706 if( !c_otd.isEmpty() ){
1707 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
1708 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
1710 //generate the int arrays for the predicate
1711 Predicate predicate = otd.predicate;
1712 int predicateindex = 0;
1713 //iterate through the classes concerned by the predicate
1714 Collection c_vard = predicate.vardescriptors.values();
1715 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
1716 VarDescriptor vard = (VarDescriptor)vard_it.next();
1717 TypeDescriptor typed = vard.getType();
1719 //generate for flags
1720 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
1721 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
1723 if (fen_hashset!=null){
1724 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
1725 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
1727 //output.println("0x0, 0x0 };");
1732 DNFFlag dflag=fen.getDNF();
1733 numberterms+=dflag.size();
1735 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
1737 for(int j=0;j<dflag.size();j++) {
1739 output.println(",");
1740 Vector term=dflag.get(j);
1743 for(int k=0;k<term.size();k++) {
1744 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
1745 FlagDescriptor fd=dfa.getFlag();
1746 boolean negated=dfa.getNegated();
1747 int flagid=1<<((Integer)flags.get(fd)).intValue();
1752 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
1757 output.println("};\n");
1760 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
1761 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
1762 //BUG...added next line to fix, test with any task program
1765 for(int j=0;j<tagel.numTags();j++) {
1767 output.println(",");
1768 /* for each tag we need */
1769 /* which slot it is */
1770 /* what type it is */
1771 //TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(tagel.getName(j));
1772 TempDescriptor tmp=tagel.getTemp(j);
1774 output.println("/*tagid*/"+state.getTagId(tmp.getTag()));
1776 numtags = tagel.numTags();
1778 output.println("};");
1780 //store the result into a predicatemember struct
1781 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
1782 output.println("/*type*/"+typed.getClassDesc().getId()+",");
1783 output.println("/* number of dnf terms */"+numberterms+",");
1784 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
1785 output.println("/* number of tag */"+numtags+",");
1786 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
1787 output.println("};\n");
1792 //generate an array that stores the entire predicate
1793 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
1794 for( int j = 0; j<predicateindex; j++){
1795 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
1796 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"};\n");
1799 //generate the struct for possible exitfses
1800 HashSet<HashSet> exitfses = otd.exitfses;
1802 int nbexit = exitfses.size();
1805 //iterate through possible exits
1806 for(Iterator exitfseshash = exitfses.iterator(); exitfseshash.hasNext();){
1807 HashSet temp_hashset = (HashSet)exitfseshash.next();
1810 //iterate through possible FSes corresponding to the exit
1811 for(Iterator exfses = temp_hashset.iterator(); exfses.hasNext();){
1812 FlagState fs = (FlagState)exfses.next();
1814 output.println("int flags"+fsnumber+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
1815 int counterflag = 0;
1816 for(Iterator flags = fs.getFlags(); flags.hasNext();){
1817 FlagDescriptor flagd = (FlagDescriptor)flags.next();
1818 int flagid=1<<((Integer)flaginfo.get(flagd)).intValue();
1819 if( flags.hasNext() ) output.print("0x"+Integer.toHexString(flagid)+" /*"+Integer.toBinaryString(flagid)+"*/,");
1820 else output.print("0x"+Integer.toHexString(flagid)+" /*"+Integer.toBinaryString(flagid)+"*/");
1823 output.println("};\n");
1824 //do the same for tags;
1825 //maybe not needed because no tag changes tolerated.
1827 //store the information into a struct
1828 output.println("struct exitflagstate exitflagstate"+fsnumber+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
1829 output.println("/*number of flags*/"+counterflag+",");
1830 output.println("flags"+fsnumber+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
1831 output.println("};\n");
1834 //store fses corresponding to this exit into an array
1835 output.println("struct exitflagstate * exitflagstatearray"+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+" [] = {");
1836 for( int j = 0; j<fsnumber; j++){
1837 if( j != fsnumber-1)output.println("&exitflagstate"+(j+1)+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"'");
1838 else output.println("&exitflagstate"+(j+1)+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"};\n");
1841 //store that information in a struct
1842 output.println("struct exitstates exitstates"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
1843 output.println("/*number of exitflagstate*/"+fsnumber+",");
1844 output.println("exitflagstatearray"+"_EXIT"+exitindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
1845 output.println("};\n");
1850 //store the information concerning all exits into an array
1851 output.println("struct exitstates * exitstatesarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
1852 for( int j = 0; j<nbexit; j++){
1853 if( j != nbexit-1)output.println("&exitstates"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
1854 else output.println("&exitstates"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"};\n");
1858 //generate optionaltaskdescriptor that actually includes exit fses, predicate and the task concerned
1859 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
1860 output.println("task_"+otd.td.getSafeSymbol()+",");
1861 output.println("/*number of members */"+predicateindex+",");
1862 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
1863 output.println("/*number of exit fses */"+nbexit+",");
1864 output.println("exitstatearray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
1865 output.println("};\n");
1868 else continue; // if there is no optionals, there is no need to build the rest of the struct
1870 //get all the possible falgstates reachable by an object
1871 Hashtable hashtbtemp = safeexecution.get(cdtemp);
1872 Enumeration fses = hashtbtemp.keys();
1874 while(fses.hasMoreElements()){
1875 FlagState fs = (FlagState)fses.nextElement();
1878 //get the set of OptionalTaskDescriptors corresponding
1879 HashSet availabletasks = (HashSet)hashtbtemp.get(fs);
1880 //iterate through the OptionalTaskDescriptors and store the pointers to the optionals struct (see on top) into an array
1882 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
1883 for(Iterator mos = availabletasks.iterator(); mos.hasNext();){
1884 OptionalTaskDescriptor mm = (OptionalTaskDescriptor)mos.next();
1885 if(!mos.hasNext()) output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+"};\n");
1887 else output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
1890 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
1892 output.println("int flags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
1893 for(Iterator flags = fs.getFlags(); flags.hasNext();){
1894 FlagDescriptor flagd = (FlagDescriptor)flags.next();
1895 int flagid=1<<((Integer)flaginfo.get(flagd)).intValue();
1896 if( flags.hasNext() ) output.print("0x"+Integer.toHexString(flagid)+" /*"+Integer.toBinaryString(flagid)+"*/,");
1897 else output.print("0x"+Integer.toHexString(flagid)+" /*"+Integer.toBinaryString(flagid)+"*/");
1900 //process tag information
1903 //TagExpressionList tagel = fs.getTags();
1904 //output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
1905 //BUG...added next line to fix, test with any task program
1908 // for(int j=0;j<tagel.numTags();j++) {
1910 // output.println(",");
1911 // TempDescriptor tmp=tagel.getTemp(j);
1912 // output.println("/*tagid*/"+state.getTagId(tmp.getTag()));
1914 // numtags = tagel.numTags();
1916 //output.println("};");
1919 //Store the result in fsanalysiswrapper
1920 output.println("};\n");
1921 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
1922 output.println("/* number of flags*/"+fs.numFlags()+",");
1923 output.println("flags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
1924 output.println("/* number of tags*/"+tagcounter+",");
1925 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
1926 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
1927 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
1928 output.println("};\n");
1932 //Build the array of fsanalysiswrappers
1933 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
1934 for(int i = 0; i<fscounter; i++){
1935 if(i==fscounter-1) output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol()+"};\n");
1937 else output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol()+",");
1940 //Build the classanalysiswrapper referring to the previous array
1941 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
1942 output.println("/*type*/"+cdtemp.getId()+",");
1943 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
1944 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
1946 processedcd.add(cdtemp);
1949 //build an array containing every classes for which code has been build
1950 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
1951 for(Iterator classit = processedcd.iterator(); classit.hasNext();){
1952 ClassDescriptor cdtemp=(ClassDescriptor)classit.next();
1953 if(!classit.hasNext()) output.println("&classanalysiswrapper_"+cdtemp.getSafeSymbol()+"};\n");
1954 else output.println("&classanalysiswrapper_"+cdtemp.getSafeSymbol()+",");
1956 output.println("int numclasses = "+processedcd.size()+";");