2 import IR.Tree.Modifiers;
3 import IR.Tree.FlagExpressionNode;
4 import IR.Tree.DNFFlag;
5 import IR.Tree.DNFFlagAtom;
6 import IR.Tree.TagExpressionList;
7 import IR.Tree.OffsetNode;
9 import IR.Tree.JavaBuilder;
15 import Analysis.TaskStateAnalysis.FlagState;
16 import Analysis.TaskStateAnalysis.FlagComparator;
17 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
18 import Analysis.TaskStateAnalysis.Predicate;
19 import Analysis.TaskStateAnalysis.SafetyAnalysis;
20 import Analysis.TaskStateAnalysis.TaskIndex;
21 import Analysis.CallGraph.CallGraph;
22 import Analysis.Loops.GlobalFieldType;
23 import Util.CodePrinter;
25 public class BuildCode {
28 Hashtable paramstable;
33 String localsprefix="___locals___";
34 String localsprefixaddr="&"+localsprefix;
35 String localsprefixderef=localsprefix+".";
36 String fcrevert="___fcrevert___";
37 String paramsprefix="___params___";
38 String nextobjstr="___nextobject___";
39 String localcopystr="___localcopy___";
40 public static boolean GENERATEPRECISEGC=false;
41 public static String PREFIX="";
42 public static String arraytype="ArrayObject";
43 public static int flagcount = 0;
46 protected int maxtaskparams=0;
47 protected int maxcount=0;
48 ClassDescriptor[] cdarray;
49 ClassDescriptor[] ifarray;
50 TypeDescriptor[] arraytable;
53 Hashtable<String, ClassDescriptor> printedfieldstbl;
54 int globaldefscount=0;
55 boolean mgcstaticinit = false;
56 JavaBuilder javabuilder;
60 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, CallGraph callgraph, JavaBuilder javabuilder) {
61 this(st, temptovar, typeutil, null, callgraph, javabuilder);
64 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, CallGraph callgraph) {
65 this(st, temptovar, typeutil, null, callgraph, null);
68 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa, CallGraph callgraph) {
69 this(st, temptovar, typeutil, sa, callgraph, null);
72 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa, CallGraph callgraph, JavaBuilder javabuilder) {
75 this.javabuilder=javabuilder;
76 this.callgraph=callgraph;
77 this.temptovar=temptovar;
78 paramstable=new Hashtable();
79 tempstable=new Hashtable();
80 fieldorder=new Hashtable();
81 flagorder=new Hashtable();
82 this.typeutil=typeutil;
83 State.logEvent("Virtual");
84 virtualcalls=new Virtual(state, null, callgraph);
85 printedfieldstbl = new Hashtable<String, ClassDescriptor>();
88 /** The buildCode method outputs C code for all the methods. The Flat
89 * versions of the methods must already be generated and stored in
90 * the State object. */
92 public void buildCode() {
93 /* Create output streams to write to */
94 PrintWriter outclassdefs=null;
95 PrintWriter outstructs=null;
96 PrintWriter outrepairstructs=null;
97 PrintWriter outmethodheader=null;
98 PrintWriter outmethod=null;
99 PrintWriter outvirtual=null;
100 PrintWriter outtask=null;
101 PrintWriter outtaskdefs=null;
102 PrintWriter outoptionalarrays=null;
103 PrintWriter optionalheaders=null;
104 PrintWriter outglobaldefs=null;
105 PrintWriter outglobaldefsprim=null;
106 State.logEvent("Beginning of buildCode");
109 buildCodeSetup(); //EXTENSION POINT
110 outstructs=new CodePrinter(new FileOutputStream(PREFIX+"structdefs.h"), true);
111 outmethodheader=new CodePrinter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
112 outclassdefs=new CodePrinter(new FileOutputStream(PREFIX+"classdefs.h"), true);
113 outglobaldefs=new CodePrinter(new FileOutputStream(PREFIX+"globaldefs.h"), true);
114 outglobaldefsprim=new CodePrinter(new FileOutputStream(PREFIX+"globaldefsprim.h"), true);
115 outmethod=new CodePrinter(new FileOutputStream(PREFIX+"methods.c"), true);
116 outvirtual=new CodePrinter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
118 outtask=new CodePrinter(new FileOutputStream(PREFIX+"task.h"), true);
119 outtaskdefs=new CodePrinter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
120 if (state.OPTIONAL) {
121 outoptionalarrays=new CodePrinter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
122 optionalheaders=new CodePrinter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
125 if (state.structfile!=null) {
126 outrepairstructs=new CodePrinter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
128 } catch (Exception e) {
133 /* Fix field safe symbols due to shadowing */
134 FieldShadow.handleFieldShadow(state);
136 /* Build the virtual dispatch tables */
137 buildVirtualTables(outvirtual);
139 /* Tag the methods that are invoked by static blocks */
140 tagMethodInvokedByStaticBlock();
142 /* Output includes */
143 outmethodheader.println("#ifndef METHODHEADERS_H");
144 outmethodheader.println("#define METHODHEADERS_H");
145 outmethodheader.println("#include \"structdefs.h\"");
147 if (state.EVENTMONITOR) {
148 outmethodheader.println("#include \"monitor.h\"");
151 additionalIncludesMethodsHeader(outmethodheader);
153 /* Output Structures */
154 outputStructs(outstructs);
156 initOutputGlobals(outglobaldefs, outglobaldefsprim);
158 outclassdefs.println("#ifndef __CLASSDEF_H_");
159 outclassdefs.println("#define __CLASSDEF_H_");
160 outputClassDeclarations(outclassdefs, outglobaldefs, outglobaldefsprim);
162 // Output function prototypes and structures for parameters
163 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
164 while(it.hasNext()) {
165 ClassDescriptor cn=(ClassDescriptor)it.next();
166 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader, outglobaldefs, outglobaldefsprim);
168 outclassdefs.println("#include \"globaldefs.h\"");
169 outclassdefs.println("#include \"globaldefsprim.h\"");
170 outclassdefs.println("#endif");
171 outclassdefs.close();
173 finalOutputGlobals(outglobaldefs, outglobaldefsprim);
176 /* Map flags to integers */
177 /* The runtime keeps track of flags using these integers */
178 it=state.getClassSymbolTable().getDescriptorsIterator();
179 while(it.hasNext()) {
180 ClassDescriptor cn=(ClassDescriptor)it.next();
184 generateTaskStructs(outstructs, outmethodheader);
186 /* Outputs generic task structures if this is a task
188 outputTaskTypes(outtask);
191 // an opportunity for subclasses to do extra
193 preCodeGenInitialization();
195 State.logEvent("Start outputMethods");
196 /* Build the actual methods */
197 outputMethods(outmethod);
198 State.logEvent("End outputMethods");
200 // opportunity for subclasses to gen extra code
201 additionalCodeGen(outmethodheader, outstructs, outmethod);
204 /* Output code for tasks */
205 outputTaskCode(outtaskdefs, outmethod);
208 /* Record maximum number of task parameters */
209 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
210 } else if (state.main!=null) {
211 /* Generate main method */
212 outputMainMethod(outmethod);
215 /* Generate information for task with optional parameters */
216 if (state.TASK&&state.OPTIONAL) {
217 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
218 outoptionalarrays.close();
219 optionalheaders.close();
222 /* Output structure definitions for repair tool */
223 if (state.structfile!=null) {
224 buildRepairStructs(outrepairstructs);
225 outrepairstructs.close();
229 outmethodheader.println("#endif");
230 outmethodheader.close();
232 outstructs.println("#endif");
233 outstructs.println();
236 postCodeGenCleanUp();
237 State.logEvent("End of buildCode");
240 protected void initOutputGlobals(PrintWriter outglobaldefs, PrintWriter outglobaldefsprim) {
241 // Output the C class declarations
242 // These could mutually reference each other
243 outglobaldefs.println("#ifndef __GLOBALDEF_H_");
244 outglobaldefs.println("#define __GLOBALDEF_H_");
245 outglobaldefs.println("");
246 outglobaldefs.println("struct global_defs_t {");
247 outglobaldefs.println(" int size;");
248 outglobaldefs.println(" void * next;");
249 outglobaldefs.println(" struct ArrayObject * classobjs;");
250 outglobaldefsprim.println("#ifndef __GLOBALDEFPRIM_H_");
251 outglobaldefsprim.println("#define __GLOBALDEFPRIM_H_");
252 outglobaldefsprim.println("");
253 outglobaldefsprim.println("struct global_defsprim_t {");
256 protected void finalOutputGlobals(PrintWriter outglobaldefs, PrintWriter outglobaldefsprim) {
257 outglobaldefs.println("};");
258 outglobaldefs.println("");
259 outglobaldefs.println("extern struct global_defs_t * global_defs_p;");
260 outglobaldefs.println("#endif");
261 outglobaldefs.flush();
262 outglobaldefs.close();
264 outglobaldefsprim.println("};");
265 outglobaldefsprim.println("");
266 outglobaldefsprim.println("extern struct global_defsprim_t * global_defsprim_p;");
267 outglobaldefsprim.println("#endif");
268 outglobaldefsprim.flush();
269 outglobaldefsprim.close();
272 /* This method goes though the call graph and tag those methods that are
273 * invoked inside static blocks
275 protected void tagMethodInvokedByStaticBlock() {
276 Iterator it_sclasses = this.state.getSClassSymbolTable().getDescriptorsIterator();
277 MethodDescriptor current_md=null;
278 HashSet tovisit=new HashSet();
279 HashSet visited=new HashSet();
281 while(it_sclasses.hasNext()) {
282 ClassDescriptor cd = (ClassDescriptor)it_sclasses.next();
283 MethodDescriptor md = (MethodDescriptor)cd.getMethodTable().get("staticblocks");
289 while(!tovisit.isEmpty()) {
290 current_md=(MethodDescriptor)tovisit.iterator().next();
291 tovisit.remove(current_md);
292 visited.add(current_md);
293 Iterator it_callee = this.callgraph.getCalleeSet(current_md).iterator();
294 while(it_callee.hasNext()) {
295 Descriptor d = (Descriptor)it_callee.next();
296 if(d instanceof MethodDescriptor) {
297 if(!visited.contains(d)) {
298 ((MethodDescriptor)d).setIsInvokedByStatic(true);
306 /* This code generates code for each static block and static field
308 protected void outputStaticBlocks(PrintWriter outmethod) {
309 // execute all the static blocks and all the static field initializations
310 // execute all the static blocks and all the static field initializations
311 SymbolTable sctbl = this.state.getSClassSymbolTable();
312 Iterator it_sclasses = sctbl.getDescriptorsIterator();
313 if(it_sclasses.hasNext()) {
314 while(it_sclasses.hasNext()) {
315 ClassDescriptor t_cd = (ClassDescriptor)it_sclasses.next();
316 MethodDescriptor t_md = (MethodDescriptor)t_cd.getMethodTable().get("staticblocks");
318 if(t_md != null&&callgraph.isInit(t_cd)) {
319 outmethod.println(" {");
320 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
321 outmethod.print(" struct "+t_cd.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"_params __parameterlist__={");
322 outmethod.println("0, NULL};");
323 outmethod.println(" "+t_cd.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"(& __parameterlist__);");
325 outmethod.println(" "+t_cd.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
327 outmethod.println(" }");
333 /* This code generates code to create a Class object for each class for
336 protected void outputClassObjects(PrintWriter outmethod) {
337 // create a global classobj array
338 outmethod.println(" {");
339 outmethod.println(" int i = 0;");
340 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
341 outmethod.println(" struct garbagelist dummy={0,NULL};");
342 outmethod.println(" global_defs_p->classobjs = allocate_newarray(&dummy, OBJECTARRAYTYPE, "
343 + (state.numClasses()+state.numArrays()+state.numInterfaces()) + ");");
345 outmethod.println(" global_defs_p->classobjs = allocate_newarray(OBJECTARRAYTYPE, "
346 + (state.numClasses()+state.numArrays()+state.numInterfaces()) + ");");
348 outmethod.println(" for(i = 0; i < " + (state.numClasses()+state.numArrays()+state.numInterfaces()) + "; i++) {");
349 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
350 outmethod.println(" ((void **)(((char *) &(global_defs_p->classobjs->___length___))+sizeof(int)))[i] = allocate_new(NULL, " +typeutil.getClass(TypeUtil.ObjectClass).getId() + ");");
352 outmethod.println(" ((void **)(((char *) &(global_defs_p->classobjs->___length___))+sizeof(int)))[i] = allocate_new(" +typeutil.getClass(TypeUtil.ObjectClass).getId() + ");");
354 outmethod.println(" }");
355 outmethod.println(" }");
358 /* This code just generates the main C method for java programs.
359 * The main C method packs up the arguments into a string array
360 * and passes it to the java main method. */
362 protected void outputMainMethod(PrintWriter outmethod) {
363 outmethod.println("int main(int argc, const char *argv[]) {");
364 outmethod.println(" int i;");
366 outmethod.println("initializethreads();");
368 outmethod.println(" global_defs_p=calloc(1, sizeof(struct global_defs_t));");
369 outmethod.println(" global_defsprim_p=calloc(1, sizeof(struct global_defsprim_t));");
370 if (GENERATEPRECISEGC) {
371 outmethod.println(" global_defs_p->size="+globaldefscount+";");
372 outmethod.println(" for(i=0;i<"+globaldefscount+";i++) {");
373 outmethod.println(" ((struct garbagelist *)global_defs_p)->array[i]=NULL;");
374 outmethod.println(" }");
376 outputStaticBlocks(outmethod);
377 outputClassObjects(outmethod);
380 additionalCodeAtTopOfMain(outmethod);
383 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
384 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
386 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
388 outmethod.println(" for(i=1;i<argc;i++) {");
389 outmethod.println(" int length=strlen(argv[i]);");
391 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
392 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
394 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
396 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
397 outmethod.println(" }");
399 MethodDescriptor md=typeutil.getMain();
400 ClassDescriptor cd=typeutil.getMainClass();
402 outmethod.println(" {");
403 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
404 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
405 outmethod.println("1, NULL,"+"stringarray};");
406 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
408 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
410 outmethod.println(" }");
413 outmethod.println("pthread_mutex_lock(&gclistlock);");
414 outmethod.println("threadcount--;");
415 outmethod.println("pthread_cond_signal(&gccond);");
416 outmethod.println("pthread_mutex_unlock(&gclistlock);");
419 if (state.EVENTMONITOR) {
420 outmethod.println("dumpdata();");
424 outmethod.println("pthread_exit(NULL);");
427 additionalCodeAtBottomOfMain(outmethod);
429 outmethod.println("}");
432 /* This method outputs code for each task. */
434 protected void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
435 /* Compile task based program */
436 outtaskdefs.println("#include \"task.h\"");
437 outtaskdefs.println("#include \"methodheaders.h\"");
438 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
439 while(taskit.hasNext()) {
440 TaskDescriptor td=(TaskDescriptor)taskit.next();
441 FlatMethod fm=state.getMethodFlat(td);
443 generateFlatMethod(fm, outmethod);
444 generateTaskDescriptor(outtaskdefs, fm, td);
447 //Output task descriptors
448 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
449 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
451 while(taskit.hasNext()) {
452 TaskDescriptor td=(TaskDescriptor)taskit.next();
456 outtaskdefs.println(",");
457 outtaskdefs.print("&task_"+td.getSafeSymbol());
459 outtaskdefs.println("};");
461 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
465 /* This method outputs most of the methods.c file. This includes
466 * some standard includes and then an array with the sizes of
467 * objets and array that stores supertype and then the code for
468 * the Java methods.. */
469 protected void outputMethods(PrintWriter outmethod) {
470 outmethod.println("#include \"methodheaders.h\"");
471 outmethod.println("#include \"virtualtable.h\"");
472 outmethod.println("#include \"runtime.h\"");
474 outmethod.println("#include \"jni-private.h\"");
477 // always include: compiler directives will leave out
478 // instrumentation when option is not set
479 if(!state.MULTICORE) {
480 outmethod.println("#include \"coreprof/coreprof.h\"");
483 if (state.FASTCHECK) {
484 outmethod.println("#include \"localobjects.h\"");
486 if(state.MULTICORE) {
488 outmethod.println("#include \"task.h\"");
490 outmethod.println("#include \"multicoreruntime.h\"");
491 outmethod.println("#include \"runtime_arch.h\"");
493 if (state.THREAD||state.DSM||state.SINGLETM) {
494 outmethod.println("#include <thread.h>");
497 outmethod.println("#include \"thread.h\"");
499 if (state.main!=null) {
500 outmethod.println("#include <string.h>");
502 if (state.CONSCHECK) {
503 outmethod.println("#include \"checkers.h\"");
507 additionalIncludesMethodsImplementation(outmethod);
509 outmethod.println("struct global_defs_t * global_defs_p;");
510 outmethod.println("struct global_defsprim_t * global_defsprim_p;");
511 //Store the sizes of classes & array elements
512 generateSizeArray(outmethod);
514 //Store table of supertypes
515 generateSuperTypeTable(outmethod);
517 //Store the layout of classes
518 generateLayoutStructs(outmethod);
521 additionalCodeAtTopMethodsImplementation(outmethod);
523 generateMethods(outmethod);
526 protected void generateMethods(PrintWriter outmethod) {
527 /* Generate code for methods */
528 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
529 while(classit.hasNext()) {
530 ClassDescriptor cn=(ClassDescriptor)classit.next();
531 Iterator methodit=cn.getMethods();
532 while(methodit.hasNext()) {
533 /* Classify parameters */
534 MethodDescriptor md=(MethodDescriptor)methodit.next();
535 if (!callgraph.isCallable(md)&&(!md.isStaticBlock()||!callgraph.isInit(cn))) {
539 FlatMethod fm=state.getMethodFlat(md);
540 if (!md.getModifiers().isNative()) {
541 generateFlatMethod(fm, outmethod);
542 } else if (state.JNI) {
543 generateNativeFlatMethod(fm, outmethod);
549 protected void outputStructs(PrintWriter outstructs) {
550 outstructs.println("#ifndef __STRUCTDEFS_H__");
551 outstructs.println("#define __STRUCTDEFS_H__");
552 outstructs.println("#include \"classdefs.h\"");
553 outstructs.println("#ifndef INTPTR");
554 outstructs.println("#ifdef BIT64");
555 outstructs.println("#define INTPTR long");
556 outstructs.println("#else");
557 outstructs.println("#define INTPTR int");
558 outstructs.println("#endif");
559 outstructs.println("#endif");
562 additionalIncludesStructsHeader(outstructs);
565 /* Output #defines that the runtime uses to determine type
566 * numbers for various objects it needs */
567 outstructs.println("#define MAXCOUNT "+maxcount);
569 outstructs.println("#define STRINGARRAYTYPE "+
570 (state.getArrayNumber(
571 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
573 outstructs.println("#define OBJECTARRAYTYPE "+
574 (state.getArrayNumber(
575 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
578 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
579 outstructs.println("#define OBJECTTYPE "+typeutil.getClass(TypeUtil.ObjectClass).getId());
580 outstructs.println("#define CHARARRAYTYPE "+
581 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
583 outstructs.println("#define BYTEARRAYTYPE "+
584 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
586 outstructs.println("#define BYTEARRAYARRAYTYPE "+
587 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
589 outstructs.println("#define NUMCLASSES "+state.numClasses());
590 int totalClassSize = state.numClasses() + state.numArrays() + state.numInterfaces();
591 outstructs.println("#define TOTALNUMCLASSANDARRAY "+ totalClassSize);
593 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
594 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
595 outstructs.println("#define TAGARRAYTYPE "+
596 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
600 protected void outputClassDeclarations(PrintWriter outclassdefs, PrintWriter outglobaldefs, PrintWriter outglobaldefsprim) {
601 if (state.THREAD||state.DSM||state.SINGLETM)
602 outclassdefs.println("#include <pthread.h>");
603 outclassdefs.println("#ifndef INTPTR");
604 outclassdefs.println("#ifdef BIT64");
605 outclassdefs.println("#define INTPTR long");
606 outclassdefs.println("#else");
607 outclassdefs.println("#define INTPTR int");
608 outclassdefs.println("#endif");
609 outclassdefs.println("#endif");
611 outclassdefs.println("#include \"optionalstruct.h\"");
612 outclassdefs.println("struct "+arraytype+";");
613 /* Start by declaring all structs */
614 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
615 while(it.hasNext()) {
616 ClassDescriptor cn=(ClassDescriptor)it.next();
617 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
619 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
620 // this class has static fields/blocks, need to add a global flag to
621 // indicate if its static fields have been initialized and/or if its
622 // static blocks have been executed
623 outglobaldefsprim.println(" int "+cn.getSafeSymbol()+"static_block_exe_flag;");
626 outclassdefs.println("");
627 //Print out definition for array type
628 outclassdefs.println("struct "+arraytype+" {");
629 outclassdefs.println(" int type;");
630 outclassdefs.println(" int hashcode;");
632 additionalClassObjectFields(outclassdefs);
635 if (state.EVENTMONITOR) {
636 outclassdefs.println(" int objuid;");
639 outclassdefs.println(" volatile int tid;");
640 outclassdefs.println(" volatile int notifycount;");
643 outclassdefs.println(" int mutex;");
644 outclassdefs.println(" volatile int notifycount;");
645 outclassdefs.println(" volatile int objlock;");
646 if(state.MULTICOREGC) {
647 outclassdefs.println(" int marked;");
651 outclassdefs.println(" int flag;");
652 outclassdefs.println(" int ___cachedCode___;");
653 if(!state.MULTICORE) {
654 outclassdefs.println(" void * flagptr;");
656 outclassdefs.println(" int version;");
657 outclassdefs.println(" int * lock;"); // lock entry for this obj
658 outclassdefs.println(" int mutex;");
659 outclassdefs.println(" volatile int lockcount;");
660 if(state.MULTICOREGC) {
661 outclassdefs.println(" int marked;");
665 outclassdefs.println(" int numfses;");
666 outclassdefs.println(" int * fses;");
670 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
671 printedfieldstbl.clear();
672 printExtraArrayFields(outclassdefs);
673 if (state.ARRAYPAD) {
674 outclassdefs.println(" int paddingforarray;");
677 outclassdefs.println(" int ___length___;");
678 outclassdefs.println("};\n");
680 outclassdefs.println("");
681 outclassdefs.println("extern int classsize[];");
682 outclassdefs.println("extern int hasflags[];");
683 outclassdefs.println("extern unsigned INTPTR * pointerarray[];");
684 outclassdefs.println("extern int* supertypes[];");
685 outclassdefs.println("");
688 /** Prints out definitions for generic task structures */
690 protected void outputTaskTypes(PrintWriter outtask) {
691 outtask.println("#ifndef _TASK_H");
692 outtask.println("#define _TASK_H");
693 outtask.println("struct parameterdescriptor {");
694 outtask.println("int type;");
695 outtask.println("int numberterms;");
696 outtask.println("int *intarray;");
697 outtask.println("void * queue;");
698 outtask.println("int numbertags;");
699 outtask.println("int *tagarray;");
700 outtask.println("};");
702 outtask.println("struct taskdescriptor {");
703 outtask.println("void * taskptr;");
704 outtask.println("int numParameters;");
705 outtask.println(" int numTotal;");
706 outtask.println("struct parameterdescriptor **descriptorarray;");
707 outtask.println("char * name;");
708 outtask.println("};");
709 outtask.println("extern struct taskdescriptor * taskarray[];");
710 outtask.println("extern numtasks;");
711 outtask.println("#endif");
715 protected void buildRepairStructs(PrintWriter outrepairstructs) {
716 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
717 while(classit.hasNext()) {
718 ClassDescriptor cn=(ClassDescriptor)classit.next();
719 outrepairstructs.println("structure "+cn.getSymbol()+" {");
720 outrepairstructs.println(" int __type__;");
722 outrepairstructs.println(" int __flag__;");
723 if(!state.MULTICORE) {
724 outrepairstructs.println(" int __flagptr__;");
727 printRepairStruct(cn, outrepairstructs);
728 outrepairstructs.println("}\n");
731 for(int i=0; i<state.numArrays(); i++) {
732 TypeDescriptor tdarray=arraytable[i];
733 TypeDescriptor tdelement=tdarray.dereference();
734 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
735 outrepairstructs.println(" int __type__;");
736 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
737 outrepairstructs.println(" int length;");
738 outrepairstructs.println("}\n");
742 protected void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
743 ClassDescriptor sp=cn.getSuperDesc();
745 printRepairStruct(sp, output);
747 Vector fields=(Vector)fieldorder.get(cn);
749 for(int i=0; i<fields.size(); i++) {
750 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
751 if (fd.getType().isArray()) {
752 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
753 } else if (fd.getType().isClass())
754 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
755 else if (fd.getType().isFloat())
756 output.println(" int "+fd.getSymbol()+"; /* really float */");
758 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
762 /** This method outputs TaskDescriptor information */
763 protected void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
764 for (int i=0; i<task.numParameters(); i++) {
765 VarDescriptor param_var=task.getParameter(i);
766 TypeDescriptor param_type=task.getParamType(i);
767 FlagExpressionNode param_flag=task.getFlag(param_var);
768 TagExpressionList param_tag=task.getTag(param_var);
771 if (param_flag==null) {
772 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
773 output.println("0x0, 0x0 };");
776 DNFFlag dflag=param_flag.getDNF();
777 dnfterms=dflag.size();
779 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
780 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
781 for(int j=0; j<dflag.size(); j++) {
784 Vector term=dflag.get(j);
787 for(int k=0; k<term.size(); k++) {
788 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
789 FlagDescriptor fd=dfa.getFlag();
790 boolean negated=dfa.getNegated();
791 int flagid=1<<((Integer)flags.get(fd)).intValue();
796 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
798 output.println("};");
801 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
803 for(int j=0; j<param_tag.numTags(); j++) {
806 /* for each tag we need */
807 /* which slot it is */
808 /* what type it is */
809 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
810 TempDescriptor tmp=param_tag.getTemp(j);
811 int slot=fm.getTagInt(tmp);
812 output.println(slot+", "+state.getTagId(tvd.getTag()));
814 output.println("};");
816 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
817 output.println("/* type */"+param_type.getClassDesc().getId()+",");
818 output.println("/* number of DNF terms */"+dnfterms+",");
819 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
820 output.println("0,");
822 output.println("/* number of tags */"+param_tag.numTags()+",");
824 output.println("/* number of tags */ 0,");
825 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
826 output.println("};");
830 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
831 for (int i=0; i<task.numParameters(); i++) {
834 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
836 output.println("};");
838 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
839 output.println("&"+task.getSafeSymbol()+",");
840 output.println("/* number of parameters */" +task.numParameters() + ",");
841 int numtotal=task.numParameters()+fm.numTags();
842 output.println("/* number total parameters */" +numtotal + ",");
843 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
844 output.println("\""+task.getSymbol()+"\"");
845 output.println("};");
849 /** The buildVirtualTables method outputs the virtual dispatch
850 * tables for methods. */
852 protected void buildVirtualTables(PrintWriter outvirtual) {
853 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
854 while(classit.hasNext()) {
855 ClassDescriptor cd=(ClassDescriptor)classit.next();
856 if (virtualcalls.getMethodCount(cd)>maxcount)
857 maxcount=virtualcalls.getMethodCount(cd);
859 MethodDescriptor[][] virtualtable=null;
860 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
862 /* Fill in virtual table */
863 classit=state.getClassSymbolTable().getDescriptorsIterator();
864 while(classit.hasNext()) {
865 ClassDescriptor cd=(ClassDescriptor)classit.next();
866 if(cd.isInterface()) {
869 fillinRow(cd, virtualtable, cd.getId());
872 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
873 Iterator arrayit=state.getArrayIterator();
874 while(arrayit.hasNext()) {
875 TypeDescriptor td=(TypeDescriptor)arrayit.next();
876 int id=state.getArrayNumber(td);
877 fillinRow(objectcd, virtualtable, id+state.numClasses());
880 outvirtual.print("void * virtualtable[]={");
881 boolean needcomma=false;
882 for(int i=0; i<state.numClasses()+state.numArrays(); i++) {
883 for(int j=0; j<maxcount; j++) {
885 outvirtual.print(", ");
886 if (virtualtable[i][j]!=null) {
887 MethodDescriptor md=virtualtable[i][j];
888 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
890 outvirtual.print("0");
894 outvirtual.println("");
896 outvirtual.println("};");
900 protected void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
901 /* Get inherited methods */
902 Iterator it_sifs = cd.getSuperInterfaces();
903 while(it_sifs.hasNext()) {
904 ClassDescriptor superif = (ClassDescriptor)it_sifs.next();
905 fillinRow(superif, virtualtable, rownum);
907 if (cd.getSuperDesc()!=null)
908 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
909 /* Override them with our methods */
910 for(Iterator it=cd.getMethods(); it.hasNext(); ) {
911 MethodDescriptor md=(MethodDescriptor)it.next();
912 if (md.isStatic()||md.getReturnType()==null)
915 if (!callgraph.isCallable(md)) {
919 int methodnum = virtualcalls.getMethodNumber(md);
920 virtualtable[rownum][methodnum]=md;
924 /** Generate array that contains the sizes of class objects. The
925 * object allocation functions in the runtime use this
928 protected void generateSizeArray(PrintWriter outclassdefs) {
929 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
930 generateSizeArrayExtensions(outclassdefs);
932 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
933 cdarray=new ClassDescriptor[state.numClasses()];
934 ifarray = new ClassDescriptor[state.numInterfaces()];
937 while(it.hasNext()) {
938 ClassDescriptor cd=(ClassDescriptor)it.next();
939 if(cd.isInterface()) {
940 ifarray[cd.getId()] = cd;
942 cdarray[cd.getId()] = cd;
946 arraytable=new TypeDescriptor[state.numArrays()];
948 Iterator arrayit=state.getArrayIterator();
949 while(arrayit.hasNext()) {
950 TypeDescriptor td=(TypeDescriptor)arrayit.next();
951 int id=state.getArrayNumber(td);
955 /* Print out types */
956 outclassdefs.println("/* ");
957 for(int i=0; i<state.numClasses(); i++) {
958 ClassDescriptor cd=cdarray[i];
960 outclassdefs.println("NULL " + i);
962 outclassdefs.println(cd +" "+i);
966 for(int i=0; i<state.numArrays(); i++) {
967 TypeDescriptor arraytd=arraytable[i];
968 outclassdefs.println(arraytd.toPrettyString() +" "+(i+state.numClasses()));
971 for(int i=0; i<state.numInterfaces(); i++) {
972 ClassDescriptor ifcd = ifarray[i];
973 outclassdefs.println(ifcd +" "+(i+state.numClasses()+state.numArrays()));
976 outclassdefs.println("*/");
979 outclassdefs.print("int classsize[]={");
981 boolean needcomma=false;
982 for(int i=0; i<state.numClasses(); i++) {
984 outclassdefs.print(", ");
986 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
988 outclassdefs.print("0");
994 for(int i=0; i<state.numArrays(); i++) {
996 outclassdefs.print(", ");
997 TypeDescriptor tdelement=arraytable[i].dereference();
998 if (tdelement.isArray()||tdelement.isClass()||tdelement.isNull())
999 outclassdefs.print("sizeof(void *)");
1001 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
1005 for(int i=0; i<state.numInterfaces(); i++) {
1007 outclassdefs.print(", ");
1008 outclassdefs.print("sizeof(struct "+ifarray[i].getSafeSymbol()+")");
1012 outclassdefs.println("};");
1014 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
1016 outclassdefs.print("int typearray[]={");
1017 for(int i=0; i<state.numClasses(); i++) {
1018 ClassDescriptor cd=cdarray[i];
1019 ClassDescriptor supercd=i>0?cd.getSuperDesc():null;
1020 if(supercd != null && supercd.isInterface()) {
1021 throw new Error("Super class can not be interfaces");
1024 outclassdefs.print(", ");
1026 outclassdefs.print("-1");
1028 outclassdefs.print(supercd.getId());
1032 for(int i=0; i<state.numArrays(); i++) {
1033 TypeDescriptor arraytd=arraytable[i];
1034 ClassDescriptor arraycd=arraytd.getClassDesc();
1035 if (arraycd==null) {
1037 outclassdefs.print(", ");
1038 outclassdefs.print(objectclass.getId());
1042 ClassDescriptor cd=arraycd.getSuperDesc();
1045 TypeDescriptor supertd=new TypeDescriptor(cd);
1046 supertd.setArrayCount(arraytd.getArrayCount());
1047 type=state.getArrayNumber(supertd);
1049 type+=state.numClasses();
1052 cd=cd.getSuperDesc();
1055 outclassdefs.print(", ");
1056 outclassdefs.print(type);
1060 for(int i=0; i<state.numInterfaces(); i++) {
1061 ClassDescriptor cd=ifarray[i];
1062 ClassDescriptor supercd=cd.getSuperDesc();
1063 if(supercd != null && supercd.isInterface()) {
1064 throw new Error("Super class can not be interfaces");
1067 outclassdefs.print(", ");
1069 outclassdefs.print("-1");
1071 outclassdefs.print(supercd.getId());
1075 outclassdefs.println("};");
1080 outclassdefs.print("int typearray2[]={");
1081 for(int i=0; i<state.numArrays(); i++) {
1082 TypeDescriptor arraytd=arraytable[i];
1083 ClassDescriptor arraycd=arraytd.getClassDesc();
1084 if (arraycd==null) {
1086 outclassdefs.print(", ");
1087 outclassdefs.print("-1");
1091 ClassDescriptor cd=arraycd.getSuperDesc();
1092 int level=arraytd.getArrayCount()-1;
1094 for(; level>0; level--) {
1095 TypeDescriptor supertd=new TypeDescriptor(objectclass);
1096 supertd.setArrayCount(level);
1097 type=state.getArrayNumber(supertd);
1099 type+=state.numClasses();
1104 outclassdefs.print(", ");
1105 outclassdefs.print(type);
1109 outclassdefs.println("};");
1112 /** Constructs params and temp objects for each method or task.
1113 * These objects tell the compiler which temps need to be
1116 protected void generateTempStructs(FlatMethod fm) {
1117 MethodDescriptor md=fm.getMethod();
1118 TaskDescriptor task=fm.getTask();
1119 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
1121 paramstable.put(md, objectparams);
1123 paramstable.put(task, objectparams);
1125 for(int i=0; i<fm.numParameters(); i++) {
1126 TempDescriptor temp=fm.getParameter(i);
1127 TypeDescriptor type=temp.getType();
1128 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1129 objectparams.addPtr(temp);
1131 objectparams.addPrim(temp);
1134 for(int i=0; i<fm.numTags(); i++) {
1135 TempDescriptor temp=fm.getTag(i);
1136 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
1137 objectparams.addPtr(temp);
1139 objectparams.addPrim(temp);
1142 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
1144 tempstable.put(md, objecttemps);
1146 tempstable.put(task, objecttemps);
1148 for(Iterator nodeit=fm.getNodeSet().iterator(); nodeit.hasNext(); ) {
1149 FlatNode fn=(FlatNode)nodeit.next();
1150 TempDescriptor[] writes=fn.writesTemps();
1151 for(int i=0; i<writes.length; i++) {
1152 TempDescriptor temp=writes[i];
1153 TypeDescriptor type=temp.getType();
1154 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1155 objecttemps.addPtr(temp);
1157 objecttemps.addPrim(temp);
1162 /** This method outputs the following information about classes
1164 * (1) For classes, what are the locations of pointers.
1165 * (2) For arrays, does the array contain pointers or primitives.
1166 * (3) For classes, does the class contain flags.
1169 protected void generateLayoutStructs(PrintWriter output) {
1170 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
1171 while(it.hasNext()) {
1172 ClassDescriptor cn=(ClassDescriptor)it.next();
1173 output.print("unsigned INTPTR "+cn.getSafeSymbol()+"_pointers[]={");
1174 if (javabuilder!=null&&!javabuilder.hasLayout(cn)) {
1175 output.println("0};");
1180 for(Iterator allit=cn.getFieldTable().getAllDescriptorsIterator(); allit.hasNext(); ) {
1181 FieldDescriptor fd=(FieldDescriptor)allit.next();
1185 TypeDescriptor type=fd.getType();
1190 // the lock field is also a pointer
1193 output.print(count);
1194 for(Iterator allit=cn.getFieldTable().getAllDescriptorsIterator(); allit.hasNext(); ) {
1195 FieldDescriptor fd=(FieldDescriptor)allit.next();
1199 TypeDescriptor type=fd.getType();
1202 output.print("((unsigned INTPTR)&(((struct "+cn.getSafeSymbol() +" *)0)->"+
1203 fd.getSafeSymbol()+"))");
1207 // output the lock field
1209 output.print("((unsigned INTPTR)&(((struct "+cn.getSafeSymbol() +" *)0)->lock))");
1211 output.println("};");
1214 output.println("unsigned INTPTR * pointerarray[]={");
1215 boolean needcomma=false;
1216 for(int i=0; i<state.numClasses(); i++) {
1217 ClassDescriptor cn=cdarray[i];
1219 output.println(",");
1222 output.print(cn.getSafeSymbol()+"_pointers");
1224 output.print("NULL");
1228 for(int i=0; i<state.numArrays(); i++) {
1230 output.println(", ");
1231 TypeDescriptor tdelement=arraytable[i].dereference();
1232 if (tdelement.isArray()||tdelement.isClass())
1233 output.print("((unsigned INTPTR *)1)");
1239 output.println("};");
1241 output.println("int hasflags[]={");
1242 for(int i=0; i<state.numClasses(); i++) {
1243 ClassDescriptor cn=cdarray[i];
1245 output.println(", ");
1247 if ((cn != null) && (cn.hasFlags()))
1252 output.println("};");
1255 private int checkarraysupertype(ClassDescriptor arraycd, TypeDescriptor arraytd) {
1258 TypeDescriptor supertd=new TypeDescriptor(arraycd);
1259 supertd.setArrayCount(arraytd.getArrayCount());
1260 type=state.getArrayNumber(supertd);
1265 ClassDescriptor cd = arraycd.getSuperDesc();
1267 type = checkarraysupertype(cd, arraytd);
1273 Iterator it_sifs = arraycd.getSuperInterfaces();
1274 while(it_sifs.hasNext()) {
1275 ClassDescriptor ifcd = (ClassDescriptor)it_sifs.next();
1276 type = checkarraysupertype(ifcd, arraytd);
1286 /** Print out table to give us supertypes */
1287 protected void generateSuperTypeTable(PrintWriter output) {
1288 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
1289 for(int i=0; i<state.numClasses(); i++) {
1290 ClassDescriptor cn=cdarray[i];
1294 output.print("int supertypes" + cn.getSafeSymbol() + "[] = {");
1295 boolean ncomma = false;
1297 if((cn != null) && (cn.getSuperDesc() != null)) {
1300 Iterator it_sifs = cn != null?cn.getSuperInterfaces():null;
1301 while(it_sifs != null && it_sifs.hasNext()) {
1307 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1311 ClassDescriptor cdsuper=cn.getSuperDesc();
1312 output.print(cdsuper.getId());
1314 it_sifs = cn != null?cn.getSuperInterfaces():null;
1315 while(it_sifs != null && it_sifs.hasNext()) {
1319 output.print(((ClassDescriptor)it_sifs.next()).getId()+state.numClasses()+state.numArrays());
1322 output.println("};");
1325 for(int i=0; i<state.numArrays(); i++) {
1326 TypeDescriptor arraytd=arraytable[i];
1327 ClassDescriptor arraycd=arraytd.getClassDesc();
1328 output.print("int supertypes___arraytype___" + (i+state.numClasses()) + "[] = {");
1329 boolean ncomma = false;
1331 if (arraycd==null) {
1335 output.print(objectclass.getId());
1336 output.println("};");
1339 if((arraycd != null) && (arraycd.getSuperDesc() != null)) {
1342 Iterator it_sifs = arraycd != null?arraycd.getSuperInterfaces():null;
1343 while(it_sifs != null && it_sifs.hasNext()) {
1349 if ((arraycd != null) && (arraycd.getSuperDesc()!=null)) {
1350 ClassDescriptor cd=arraycd.getSuperDesc();
1353 type = checkarraysupertype(cd, arraytd);
1355 type += state.numClasses();
1362 it_sifs = arraycd != null?arraycd.getSuperInterfaces():null;
1363 while(it_sifs != null && it_sifs.hasNext()) {
1364 ClassDescriptor ifcd = (ClassDescriptor)it_sifs.next();
1365 int type = checkarraysupertype(ifcd, arraytd);
1367 type += state.numClasses();
1373 output.println("};");
1376 for(int i=0; i<state.numInterfaces(); i++) {
1377 ClassDescriptor cn=ifarray[i];
1381 output.print("int supertypes" + cn.getSafeSymbol() + "[] = {");
1382 boolean ncomma = false;
1384 if((cn != null) && (cn.getSuperDesc() != null)) {
1387 Iterator it_sifs = cn != null?cn.getSuperInterfaces():null;
1388 while(it_sifs != null && it_sifs.hasNext()) {
1394 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1398 ClassDescriptor cdsuper=cn.getSuperDesc();
1399 output.print(cdsuper.getId());
1401 it_sifs = cn != null?cn.getSuperInterfaces():null;
1402 while(it_sifs != null && it_sifs.hasNext()) {
1406 output.print(((ClassDescriptor)it_sifs.next()).getId()+state.numClasses()+state.numArrays());
1409 output.println("};");
1412 output.println("int* supertypes[]={");
1413 boolean needcomma=false;
1414 for(int i=0; i<state.numClasses(); i++) {
1415 ClassDescriptor cn=cdarray[i];
1417 output.println(",");
1420 output.print("supertypes" + cn.getSafeSymbol());
1426 for(int i=0; i<state.numArrays(); i++) {
1428 output.println(",");
1430 output.print("supertypes___arraytype___" + (i+state.numClasses()));
1433 for(int i=0; i<state.numInterfaces(); i++) {
1434 ClassDescriptor cn=ifarray[i];
1436 output.println(",");
1438 output.print("supertypes" + cn.getSafeSymbol());
1440 output.println("};");
1443 /** Force consistent field ordering between inherited classes. */
1445 protected void printClassStruct(ClassDescriptor cn, PrintWriter classdefout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1447 ClassDescriptor sp=cn.getSuperDesc();
1449 printClassStruct(sp, classdefout, /*globaldefout*/ null, null);
1451 SymbolTable sitbl = cn.getSuperInterfaceTable();
1452 Iterator it_sifs = sitbl.getDescriptorsIterator();
1453 while(it_sifs.hasNext()) {
1454 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1455 printClassStruct(si, classdefout, /*globaldefout*/ null, null);
1458 if (!fieldorder.containsKey(cn)) {
1459 Vector fields=new Vector();
1460 fieldorder.put(cn,fields);
1462 Vector fieldvec=cn.getFieldVec();
1464 for(int i=0; i<fieldvec.size(); i++) {
1465 FieldDescriptor fd=(FieldDescriptor)fieldvec.get(i);
1466 if((sp != null) && sp.getFieldTable().contains(fd.getSymbol())) {
1469 it_sifs = sitbl.getDescriptorsIterator();
1470 while(it_sifs.hasNext()) {
1471 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1472 if(si.getFieldTable().contains(fd.getSymbol())) {
1480 //Vector fields=(Vector)fieldorder.get(cn);
1482 Vector fields = cn.getFieldVec();
1484 for(int i=0; i<fields.size(); i++) {
1485 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
1486 String fstring = fd.getSafeSymbol();
1487 if(printedfieldstbl.containsKey(fstring)) {
1488 printedfieldstbl.put(fstring, cn);
1491 printedfieldstbl.put(fstring, cn);
1493 if (fd.getType().isClass()
1494 && fd.getType().getClassDesc().isEnum()) {
1495 classdefout.println(" int " + fd.getSafeSymbol() + ";");
1496 } else if (fd.getType().isClass()||fd.getType().isArray()) {
1497 if (fd.isStatic()) {
1498 // TODO add version for normal Java later
1500 if(globaldefout != null) {
1501 if(fd.isVolatile()) {
1502 globaldefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1504 globaldefout.println(" struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1508 } else if (fd.isVolatile()) {
1510 classdefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1512 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1514 } else if (fd.isStatic()) {
1515 // TODO add version for normal Java later
1517 if(globaldefout != null) {
1518 if(fd.isVolatile()) {
1519 globaldefprimout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1521 globaldefprimout.println(" "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1524 } else if (fd.isVolatile()) {
1526 classdefout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1528 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
1533 /* Map flags to integers consistently between inherited
1536 protected void mapFlags(ClassDescriptor cn) {
1537 ClassDescriptor sp=cn.getSuperDesc();
1541 if (!flagorder.containsKey(cn)) {
1542 Hashtable flags=new Hashtable();
1543 flagorder.put(cn,flags);
1545 Hashtable superflags=(Hashtable)flagorder.get(sp);
1546 Iterator superflagit=superflags.keySet().iterator();
1547 while(superflagit.hasNext()) {
1548 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1549 Integer number=(Integer)superflags.get(fd);
1550 flags.put(fd, number);
1551 if ((number.intValue()+1)>max)
1552 max=number.intValue()+1;
1556 Iterator flagit=cn.getFlags();
1557 while(flagit.hasNext()) {
1558 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1559 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1560 flags.put(fd, new Integer(max++));
1566 /** This function outputs (1) structures that parameters are
1567 * passed in (when PRECISE GC is enabled) and (2) function
1568 * prototypes for the methods */
1570 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1571 /* Output class structure */
1572 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1573 classdefout.println(" int type;");
1574 classdefout.println(" int hashcode;");
1576 additionalClassObjectFields(classdefout);
1579 if (state.EVENTMONITOR) {
1580 classdefout.println(" int objuid;");
1583 classdefout.println(" volatile int tid;");
1584 classdefout.println(" volatile int notifycount;");
1587 classdefout.println(" int mutex;");
1588 classdefout.println(" volatile int notifycount;");
1589 classdefout.println(" volatile int objlock;");
1590 if(state.MULTICOREGC) {
1591 classdefout.println(" int marked;");
1595 classdefout.println(" int flag;");
1596 classdefout.println(" int ___cachedCode___;");
1597 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1598 classdefout.println(" void * flagptr;");
1600 if (state.MULTICORE) {
1601 classdefout.println(" int version;");
1602 classdefout.println(" int * lock;"); // lock entry for this obj
1603 classdefout.println(" int mutex;");
1604 classdefout.println(" volatile int lockcount;");
1605 if(state.MULTICOREGC) {
1606 classdefout.println(" int marked;");
1609 if (state.OPTIONAL) {
1610 classdefout.println(" int numfses;");
1611 classdefout.println(" int * fses;");
1614 if (javabuilder==null||javabuilder.hasLayout(cn))
1615 printClassStruct(cn, classdefout, globaldefout, globaldefprimout);
1617 printedfieldstbl.clear(); // = new Hashtable<String, ClassDescriptor>();
1618 classdefout.println("};\n");
1619 generateCallStructsMethods(cn, output, headersout);
1623 protected void generateCallStructsMethods(ClassDescriptor cn, PrintWriter output, PrintWriter headersout) {
1624 for(Iterator methodit=cn.getMethods(); methodit.hasNext(); ) {
1625 MethodDescriptor md=(MethodDescriptor)methodit.next();
1627 FlatMethod fm=state.getMethodFlat(md);
1629 if (!callgraph.isCallable(md)&&(!md.isStaticBlock()||!callgraph.isInit(cn))) {
1630 if (callgraph.isCalled(md)) {
1631 generateTempStructs(fm);
1632 generateMethodParam(cn, md, output);
1637 generateTempStructs(fm);
1638 generateMethodParam(cn, md, output);
1640 generateMethod(cn, md, headersout, output);
1644 protected void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, PrintWriter output) {
1645 /* Output parameter structure */
1646 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1647 if(md.isInvokedByStatic() && !md.isStaticBlock() && !md.getModifiers().isNative()) {
1648 // generate the staticinit version
1649 String mdstring = md.getSafeMethodDescriptor() + "staticinit";
1651 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1652 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params {");
1653 output.println(" int size;");
1654 output.println(" void * next;");
1655 for(int i=0; i<objectparams.numPointers(); i++) {
1656 TempDescriptor temp=objectparams.getPointer(i);
1657 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1658 output.println(" int " + temp.getSafeSymbol() + ";");
1660 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1663 output.println("};\n");
1666 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1667 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1668 output.println(" int size;");
1669 output.println(" void * next;");
1670 for(int i=0; i<objectparams.numPointers(); i++) {
1671 TempDescriptor temp=objectparams.getPointer(i);
1672 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1673 output.println(" int " + temp.getSafeSymbol() + ";");
1675 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1678 output.println("};\n");
1682 protected void generateMethod(ClassDescriptor cn, MethodDescriptor md, PrintWriter headersout, PrintWriter output) {
1683 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1684 TempObject objecttemps=(TempObject) tempstable.get(md);
1686 boolean printcomma = false;
1689 if(md.isInvokedByStatic() && !md.isStaticBlock() && !md.getModifiers().isNative()) {
1690 // generate the staticinit version
1691 String mdstring = md.getSafeMethodDescriptor() + "staticinit";
1693 /* Output temp structure */
1694 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1695 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_locals {");
1696 output.println(" int size;");
1697 output.println(" void * next;");
1698 for(int i=0; i<objecttemps.numPointers(); i++) {
1699 TempDescriptor temp=objecttemps.getPointer(i);
1700 if (!temp.getType().isArray() && temp.getType().isNull())
1701 output.println(" void * "+temp.getSafeSymbol()+";");
1703 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1705 output.println("};\n");
1708 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+" 1");
1709 /* First the return type */
1710 if (md.getReturnType()!=null) {
1711 if(md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1712 headersout.println(" int ");
1713 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1714 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1716 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1718 //catch the constructor case
1719 headersout.print("void ");
1721 /* Next the method name */
1722 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"(");
1724 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1725 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params * "+paramsprefix);
1729 /* Output parameter list*/
1730 for(int i=0; i<objectparams.numPrimitives(); i++) {
1731 TempDescriptor temp=objectparams.getPrimitive(i);
1733 headersout.print(", ");
1735 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1736 headersout.print("int " + temp.getSafeSymbol());
1737 } else if (temp.getType().isClass()||temp.getType().isArray())
1738 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1740 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1742 if(md.getSymbol().equals("MonitorEnter") && state.OBJECTLOCKDEBUG) {
1743 headersout.print(", int linenum");
1745 headersout.println(");\n");
1748 /* Output temp structure */
1749 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1750 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1751 output.println(" int size;");
1752 output.println(" void * next;");
1753 for(int i=0; i<objecttemps.numPointers(); i++) {
1754 TempDescriptor temp=objecttemps.getPointer(i);
1755 if (!temp.getType().isArray() && temp.getType().isNull())
1756 output.println(" void * "+temp.getSafeSymbol()+";");
1758 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1760 output.println("};\n");
1763 /********* Output method declaration ***********/
1764 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+" 1");
1765 /* First the return type */
1766 if (md.getReturnType()!=null) {
1767 if(md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1768 headersout.println(" int ");
1769 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1770 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1772 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1774 //catch the constructor case
1775 headersout.print("void ");
1777 /* Next the method name */
1778 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1780 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1781 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1785 /* Output parameter list*/
1786 for(int i=0; i<objectparams.numPrimitives(); i++) {
1787 TempDescriptor temp=objectparams.getPrimitive(i);
1789 headersout.print(", ");
1791 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1792 headersout.print("int " + temp.getSafeSymbol());
1793 } else if (temp.getType().isClass()||temp.getType().isArray())
1794 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1796 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1798 if(md.getSymbol().equals("MonitorEnter") && state.OBJECTLOCKDEBUG) {
1799 headersout.print(", int linenum");
1801 headersout.println(");\n");
1805 /** This function outputs (1) structures that parameters are
1806 * passed in (when PRECISE GC is enabled) and (2) function
1807 * prototypes for the tasks */
1809 protected void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1810 /* Cycle through tasks */
1811 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1813 while(taskit.hasNext()) {
1814 /* Classify parameters */
1815 TaskDescriptor task=(TaskDescriptor)taskit.next();
1816 FlatMethod fm=state.getMethodFlat(task);
1817 generateTempStructs(fm);
1819 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1820 TempObject objecttemps=(TempObject) tempstable.get(task);
1822 /* Output parameter structure */
1823 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1824 output.println("struct "+task.getSafeSymbol()+"_params {");
1825 output.println(" int size;");
1826 output.println(" void * next;");
1827 for(int i=0; i<objectparams.numPointers(); i++) {
1828 TempDescriptor temp=objectparams.getPointer(i);
1829 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1832 output.println("};\n");
1833 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1834 maxtaskparams=objectparams.numPointers()+fm.numTags();
1838 /* Output temp structure */
1839 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1840 output.println("struct "+task.getSafeSymbol()+"_locals {");
1841 output.println(" int size;");
1842 output.println(" void * next;");
1843 for(int i=0; i<objecttemps.numPointers(); i++) {
1844 TempDescriptor temp=objecttemps.getPointer(i);
1845 if (!temp.getType().isArray() && temp.getType().isNull())
1846 output.println(" void * "+temp.getSafeSymbol()+";");
1847 else if(temp.getType().isTag())
1848 output.println(" struct "+
1849 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1851 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1853 output.println("};\n");
1856 /* Output task declaration */
1857 headersout.print("void " + task.getSafeSymbol()+"(");
1859 boolean printcomma=false;
1860 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1861 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1863 headersout.print("void * parameterarray[]");
1864 headersout.println(");\n");
1868 protected void generateNativeFlatMethod(FlatMethod fm, PrintWriter outmethod) {
1869 MethodDescriptor md=fm.getMethod();
1870 ClassDescriptor cd=md.getClassDesc();
1871 generateHeader(fm, md, outmethod);
1873 outmethod.println("JNIPUSHFRAME();");
1874 if (md.getModifiers().isStatic()) {
1875 outmethod.println("jobject rec=JNIWRAP(((void **)(((char *) &(global_defs_p->classobjs->___length___))+sizeof(int)))[" + cd.getId() + "]);");
1877 outmethod.println("jobject rec=JNIWRAP("+generateTemp(fm, fm.getParameter(0))+");");
1880 for(int i=startindex; i<fm.numParameters(); i++) {
1881 TempDescriptor tmp=fm.getParameter(i);
1882 if (tmp.getType().isPtr()) {
1883 outmethod.println("jobject param"+i+"=JNIWRAP("+generateTemp(fm, fm.getParameter(i))+");");
1886 if (GENERATEPRECISEGC) {
1887 outmethod.println("stopforgc((struct garbagelist *)___params___);");
1889 if (!md.getReturnType().isVoid()) {
1890 if (md.getReturnType().isPtr())
1891 outmethod.print("jobject retval=");
1893 outmethod.print(md.getReturnType().getSafeSymbol()+" retval=");
1895 outmethod.print("Java_");
1896 outmethod.print(cd.getPackage().replace('.','_'));
1897 outmethod.print("_"+md.getSymbol()+"(");
1898 outmethod.print("JNI_vtable, rec");
1900 for(int i=startindex; i<fm.numParameters(); i++) {
1901 outmethod.print(", ");
1902 TempDescriptor tmp=fm.getParameter(i);
1903 if (tmp.getType().isPtr()) {
1904 outmethod.print("param"+i);
1906 outmethod.print(generateTemp(fm, tmp));
1909 outmethod.println(");");
1910 if (GENERATEPRECISEGC) {
1911 outmethod.println("restartaftergc();");
1913 if (!md.getReturnType().isVoid()) {
1914 if (md.getReturnType().isPtr()) {
1915 outmethod.println("struct ___Object___ * retobj=JNIUNWRAP(retval);");
1916 outmethod.println("JNIPOPFRAME();");
1917 outmethod.println("return retobj;");
1919 outmethod.println("JNIPOPFRAME();");
1920 outmethod.println("return retval;");
1923 outmethod.println("JNIPOPFRAME();");
1925 outmethod.println("}");
1926 outmethod.println("");
1929 protected void generateFlatMethod(FlatMethod fm, PrintWriter output) {
1930 if (State.PRINTFLAT)
1931 System.out.println(fm.printMethod());
1932 MethodDescriptor md=fm.getMethod();
1933 TaskDescriptor task=fm.getTask();
1934 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1935 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null?md:task);
1937 if((md != null) && md.isInvokedByStatic() && !md.isStaticBlock() && !md.getModifiers().isNative()) {
1938 // generate a special static init version
1939 mgcstaticinit = true;
1940 String mdstring = md.getSafeMethodDescriptor() + "staticinit";
1942 generateHeader(fm, md!=null?md:task,output);
1943 TempObject objecttemp=(TempObject) tempstable.get(md!=null?md:task);
1945 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1946 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_locals "+localsprefix+"={");
1947 output.print(objecttemp.numPointers()+",");
1948 output.print(paramsprefix);
1949 for(int j=0; j<objecttemp.numPointers(); j++)
1950 output.print(", NULL");
1951 output.println("};");
1954 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1955 TempDescriptor td=objecttemp.getPrimitive(i);
1956 TypeDescriptor type=td.getType();
1957 if (type.isNull() && !type.isArray())
1958 output.println(" void * "+td.getSafeSymbol()+";");
1959 else if (type.isClass() && type.getClassDesc().isEnum()) {
1960 output.println(" int " + td.getSafeSymbol() + ";");
1961 } else if (type.isClass()||type.isArray())
1962 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1964 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1967 additionalCodeAtTopFlatMethodBody(output, fm);
1969 /* Check to see if we need to do a GC if this is a
1970 * multi-threaded program...*/
1972 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC) || state.MULTICOREGC) {
1973 //Don't bother if we aren't in recursive methods...The loops case will catch it
1974 if (callgraph.getAllMethods(md).contains(md)) {
1975 if (this.state.MULTICOREGC) {
1976 output.println("if(gcflag) gc("+localsprefixaddr+");");
1978 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1983 generateCode(fm.getNext(0), fm, null, output);
1985 output.println("}\n\n");
1987 mgcstaticinit = false;
1990 generateHeader(fm, md!=null?md:task,output);
1991 TempObject objecttemp=(TempObject) tempstable.get(md!=null?md:task);
1993 if((md != null) && (md.isStaticBlock())) {
1994 mgcstaticinit = true;
1997 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1999 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
2001 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
2002 output.print(objecttemp.numPointers()+",");
2003 output.print(paramsprefix);
2004 for(int j=0; j<objecttemp.numPointers(); j++)
2005 output.print(", NULL");
2006 output.println("};");
2009 for(int i=0; i<objecttemp.numPrimitives(); i++) {
2010 TempDescriptor td=objecttemp.getPrimitive(i);
2011 TypeDescriptor type=td.getType();
2012 if (type.isNull() && !type.isArray())
2013 output.println(" void * "+td.getSafeSymbol()+";");
2014 else if (type.isClass() && type.getClassDesc().isEnum()) {
2015 output.println(" int " + td.getSafeSymbol() + ";");
2016 } else if (type.isClass()||type.isArray())
2017 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
2019 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
2022 additionalCodeAtTopFlatMethodBody(output, fm);
2024 /* Check to see if we need to do a GC if this is a
2025 * multi-threaded program...*/
2027 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
2028 || this.state.MULTICOREGC) {
2029 //Don't bother if we aren't in recursive methods...The loops case will catch it
2030 if (callgraph.getAllMethods(md).contains(md)) {
2031 if (this.state.MULTICOREGC) {
2032 output.println("if(gcflag) gc("+localsprefixaddr+");");
2034 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
2039 if(fm.getMethod()!=null&&fm.getMethod().isStaticBlock()) {
2040 // a static block, check if it has been executed
2041 output.println(" if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag != 0) {");
2042 output.println(" return;");
2043 output.println(" }");
2047 generateCode(fm.getNext(0), fm, null, output);
2049 output.println("}\n\n");
2051 mgcstaticinit = false;
2054 protected void generateCode(FlatNode first,
2056 Set<FlatNode> stopset,
2057 PrintWriter output) {
2059 /* Assign labels to FlatNode's if necessary.*/
2061 Hashtable<FlatNode, Integer> nodetolabel;
2063 nodetolabel=assignLabels(first, stopset);
2065 Set<FlatNode> storeset=null;
2066 HashSet<FlatNode> genset=null;
2067 HashSet<FlatNode> refset=null;
2068 Set<FlatNode> unionset=null;
2070 /* Do the actual code generation */
2071 FlatNode current_node=null;
2072 HashSet tovisit=new HashSet();
2073 HashSet visited=new HashSet();
2075 while(current_node!=null||!tovisit.isEmpty()) {
2076 if (current_node==null) {
2077 current_node=(FlatNode)tovisit.iterator().next();
2078 tovisit.remove(current_node);
2079 } else if (tovisit.contains(current_node)) {
2080 tovisit.remove(current_node);
2082 visited.add(current_node);
2083 if (nodetolabel.containsKey(current_node)) {
2084 output.println("L"+nodetolabel.get(current_node)+":");
2086 if (state.INSTRUCTIONFAILURE) {
2088 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
2090 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
2092 if (current_node.numNext()==0||stopset!=null&&stopset.contains(current_node)) {
2094 generateFlatNode(fm, current_node, output);
2096 if (state.OOOJAVA && stopset!=null) {
2097 assert first.getPrev(0) instanceof FlatSESEEnterNode;
2098 assert current_node instanceof FlatSESEExitNode;
2099 FlatSESEEnterNode fsen = (FlatSESEEnterNode) first.getPrev(0);
2100 FlatSESEExitNode fsxn = (FlatSESEExitNode) current_node;
2101 assert fsen.getFlatExit().equals(fsxn);
2102 assert fsxn.getFlatEnter().equals(fsen);
2104 if (current_node.kind()!=FKind.FlatReturnNode) {
2105 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2106 // a static block, check if it has been executed
2107 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2110 output.println(" return;");
2113 } else if(current_node.numNext()==1) {
2115 if (state.OOOJAVA &&
2116 current_node.kind()==FKind.FlatSESEEnterNode) {
2117 FlatSESEEnterNode fsen = (FlatSESEEnterNode)current_node;
2118 generateFlatNode(fm, current_node, output);
2119 nextnode=fsen.getFlatExit().getNext(0);
2122 generateFlatNode(fm, current_node, output);
2123 nextnode=current_node.getNext(0);
2125 if (visited.contains(nextnode)) {
2126 output.println("goto L"+nodetolabel.get(nextnode)+";");
2129 current_node=nextnode;
2130 } else if (current_node.numNext()==2) {
2133 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
2134 if (!visited.contains(current_node.getNext(1)))
2135 tovisit.add(current_node.getNext(1));
2136 if (visited.contains(current_node.getNext(0))) {
2137 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
2140 current_node=current_node.getNext(0);
2141 } else throw new Error();
2145 protected Hashtable<FlatNode, Integer> assignLabels(FlatNode first, Set<FlatNode> lastset) {
2146 HashSet tovisit=new HashSet();
2147 HashSet visited=new HashSet();
2149 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
2152 /*Assign labels first. A node needs a label if the previous
2153 * node has two exits or this node is a join point. */
2155 while(!tovisit.isEmpty()) {
2156 FlatNode fn=(FlatNode)tovisit.iterator().next();
2161 if(lastset!=null&&lastset.contains(fn)) {
2162 // if last is not null and matches, don't go
2163 // any further for assigning labels
2167 for(int i=0; i<fn.numNext(); i++) {
2168 FlatNode nn=fn.getNext(i);
2171 //1) Edge >1 of node
2172 nodetolabel.put(nn,new Integer(labelindex++));
2174 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
2178 nodetolabel.put(nn,new Integer(labelindex++));
2185 /** Generate text string that corresponds to the TempDescriptor td. */
2186 protected String generateTemp(FlatMethod fm, TempDescriptor td) {
2187 MethodDescriptor md=fm.getMethod();
2188 TaskDescriptor task=fm.getTask();
2189 TempObject objecttemps=(TempObject) tempstable.get(md!=null?md:task);
2191 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
2192 return td.getSafeSymbol();
2195 if (objecttemps.isLocalPtr(td)) {
2196 return localsprefixderef+td.getSafeSymbol();
2199 if (objecttemps.isParamPtr(td)) {
2200 return paramsprefix+"->"+td.getSafeSymbol();
2208 protected void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
2209 if(state.LINENUM) printSourceLineNumber(fm,fn,output);
2210 additionalCodePreNode(fm, fn, output);
2213 case FKind.FlatAtomicEnterNode:
2214 generateFlatAtomicEnterNode(fm, (FlatAtomicEnterNode) fn, output);
2217 case FKind.FlatAtomicExitNode:
2218 generateFlatAtomicExitNode(fm, (FlatAtomicExitNode) fn, output);
2221 case FKind.FlatInstanceOfNode:
2222 generateFlatInstanceOfNode(fm, (FlatInstanceOfNode)fn, output);
2225 case FKind.FlatSESEEnterNode:
2226 generateFlatSESEEnterNode(fm, (FlatSESEEnterNode)fn, output);
2229 case FKind.FlatSESEExitNode:
2230 generateFlatSESEExitNode(fm, (FlatSESEExitNode)fn, output);
2233 case FKind.FlatWriteDynamicVarNode:
2234 generateFlatWriteDynamicVarNode(fm, (FlatWriteDynamicVarNode)fn, output);
2237 case FKind.FlatGlobalConvNode:
2238 generateFlatGlobalConvNode(fm, (FlatGlobalConvNode) fn, output);
2241 case FKind.FlatTagDeclaration:
2242 generateFlatTagDeclaration(fm, (FlatTagDeclaration) fn,output);
2245 case FKind.FlatCall:
2246 generateFlatCall(fm, (FlatCall) fn,output);
2249 case FKind.FlatFieldNode:
2250 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
2253 case FKind.FlatElementNode:
2254 generateFlatElementNode(fm, (FlatElementNode) fn,output);
2257 case FKind.FlatSetElementNode:
2258 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
2261 case FKind.FlatSetFieldNode:
2262 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
2266 generateFlatNew(fm, (FlatNew) fn,output);
2269 case FKind.FlatOpNode:
2270 generateFlatOpNode(fm, (FlatOpNode) fn,output);
2273 case FKind.FlatCastNode:
2274 generateFlatCastNode(fm, (FlatCastNode) fn,output);
2277 case FKind.FlatLiteralNode:
2278 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
2281 case FKind.FlatReturnNode:
2282 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
2286 output.println("/* nop */");
2289 case FKind.FlatGenReachNode:
2290 // this node is just for generating a reach graph
2291 // in disjointness analysis at a particular program point
2294 case FKind.FlatExit:
2295 output.println("/* exit */");
2298 case FKind.FlatBackEdge:
2299 generateFlatBackEdge(fm, (FlatBackEdge)fn, output);
2302 case FKind.FlatCheckNode:
2303 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
2306 case FKind.FlatFlagActionNode:
2307 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
2310 case FKind.FlatPrefetchNode:
2311 generateFlatPrefetchNode(fm, (FlatPrefetchNode) fn, output);
2314 case FKind.FlatOffsetNode:
2315 generateFlatOffsetNode(fm, (FlatOffsetNode)fn, output);
2322 additionalCodePostNode(fm, fn, output);
2325 public void generateFlatBackEdge(FlatMethod fm, FlatBackEdge fn, PrintWriter output) {
2326 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
2327 || (this.state.MULTICOREGC)) {
2328 if(this.state.MULTICOREGC) {
2329 output.println("if (gcflag) gc("+localsprefixaddr+");");
2331 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
2334 output.println("/* nop */");
2337 public void generateFlatOffsetNode(FlatMethod fm, FlatOffsetNode fofn, PrintWriter output) {
2338 output.println("/* FlatOffsetNode */");
2339 FieldDescriptor fd=fofn.getField();
2340 if(!fd.isStatic()) {
2341 output.println(generateTemp(fm, fofn.getDst())+ " = (short)(int) (&((struct "+fofn.getClassType().getSafeSymbol() +" *)0)->"+
2342 fd.getSafeSymbol()+");");
2344 output.println("/* offset */");
2347 public void generateFlatPrefetchNode(FlatMethod fm, FlatPrefetchNode fpn, PrintWriter output) {
2350 public void generateFlatGlobalConvNode(FlatMethod fm, FlatGlobalConvNode fgcn, PrintWriter output) {
2353 public void generateFlatInstanceOfNode(FlatMethod fm, FlatInstanceOfNode fion, PrintWriter output) {
2356 if (fion.getType().isArray()) {
2357 type=state.getArrayNumber(fion.getType())+state.numClasses();
2358 } else if (fion.getType().getClassDesc().isInterface()) {
2359 type=fion.getType().getClassDesc().getId()+state.numClasses()+state.numArrays();
2361 type=fion.getType().getClassDesc().getId();
2363 if (fion.getSrc().getType().isArray()) {
2364 otype=state.getArrayNumber(fion.getSrc().getType())+state.numClasses();
2365 } else if (fion.getSrc().getType().getClassDesc().isInterface()) {
2366 otype=fion.getSrc().getType().getClassDesc().getId()+state.numClasses()+state.numArrays();
2368 otype=fion.getSrc().getType().getClassDesc().getId();
2371 if (fion.getType().getSymbol().equals(TypeUtil.ObjectClass))
2372 output.println(generateTemp(fm, fion.getDst())+"=(" + generateTemp(fm,fion.getSrc()) + "!= NULL);");
2374 output.println(generateTemp(fm, fion.getDst())+"=instanceof("+generateTemp(fm,fion.getSrc())+","+type+");");
2378 public void generateFlatAtomicEnterNode(FlatMethod fm, FlatAtomicEnterNode faen, PrintWriter output) {
2381 public void generateFlatAtomicExitNode(FlatMethod fm, FlatAtomicExitNode faen, PrintWriter output) {
2384 public void generateFlatSESEEnterNode(FlatMethod fm,
2385 FlatSESEEnterNode fsen,
2386 PrintWriter output) {
2387 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
2388 // just skip over them and code generates exactly the same
2391 public void generateFlatSESEExitNode(FlatMethod fm,
2392 FlatSESEExitNode fsexn,
2393 PrintWriter output) {
2394 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
2395 // just skip over them and code generates exactly the same
2398 public void generateFlatWriteDynamicVarNode(FlatMethod fm,
2399 FlatWriteDynamicVarNode fwdvn,
2400 PrintWriter output) {
2404 protected void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
2405 if (state.CONSCHECK) {
2406 String specname=fcn.getSpec();
2407 String varname="repairstate___";
2408 output.println("{");
2409 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
2411 TempDescriptor[] temps=fcn.getTemps();
2412 String[] vars=fcn.getVars();
2413 for(int i=0; i<temps.length; i++) {
2414 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i])+";");
2417 output.println("if (doanalysis"+specname+"("+varname+")) {");
2418 output.println("free"+specname+"_state("+varname+");");
2419 output.println("} else {");
2420 output.println("/* Bad invariant */");
2421 output.println("free"+specname+"_state("+varname+");");
2422 output.println("abort_task();");
2423 output.println("}");
2424 output.println("}");
2428 protected void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
2429 MethodDescriptor md=fc.getMethod();
2430 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
2432 ClassDescriptor cn=md.getClassDesc();
2433 String mdstring = md.getSafeMethodDescriptor();
2434 if(mgcstaticinit && !md.isStaticBlock() && !md.getModifiers().isNative()) {
2435 mdstring += "staticinit";
2438 // if the called method is a static block or a static method or a constructor
2439 // need to check if it can be invoked inside some static block
2440 if((md.isStatic() || md.isStaticBlock() || md.isConstructor()) &&
2441 ((fm.getMethod() != null) && ((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())))) {
2442 if(!md.isInvokedByStatic()) {
2443 System.err.println("Error: a method that is invoked inside a static block is not tagged!");
2445 // is a static block or is invoked in some static block
2446 ClassDescriptor cd = fm.getMethod().getClassDesc();
2447 if(cd != cn && mgcstaticinit && callgraph.isInit(cn)) {
2448 // generate static init check code if it has not done static init in main()
2449 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2450 // need to check if the class' static fields have been initialized and/or
2451 // its static blocks have been executed
2452 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2453 if(cn.getNumStaticBlocks() != 0) {
2454 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2455 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2456 output.print(" struct "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2457 output.println("0, NULL};");
2458 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"(& __parameterlist__);");
2460 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2463 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2465 output.println("}");
2469 if((md.getSymbol().equals("MonitorEnter") || md.getSymbol().equals("MonitorExit")) && fc.getThis().getSymbol().equals("classobj")) {
2470 output.println("{");
2471 if(md.getSymbol().equals("MonitorEnter") && state.OBJECTLOCKDEBUG) {
2472 output.println("int monitorenterline = __LINE__;");
2474 // call MonitorEnter/MonitorExit on a class obj
2475 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2476 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2477 output.println("1," + localsprefixaddr + ", ((void **)(((char *) &(global_defs_p->classobjs->___length___))+sizeof(int)))[" + fc.getThis().getType().getClassDesc().getId() + "]};");
2478 if(md.getSymbol().equals("MonitorEnter") && state.OBJECTLOCKDEBUG) {
2479 output.println(" "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__, monitorenterline);");
2481 output.println(" "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
2484 output.println(" " + cn.getSafeSymbol()+md.getSafeSymbol()+"_"
2485 + md.getSafeMethodDescriptor() + "((struct ___Object___*)(((void **)(((char *) &(global_defs_p->classobjs->___length___))+sizeof(int)))["
2486 + fc.getThis().getType().getClassDesc().getId() + "]));");
2488 output.println("}");
2492 output.println("{");
2493 if(md.getSymbol().equals("MonitorEnter")) {
2494 output.println("int monitorenterline = __LINE__;");
2496 if (GENERATEPRECISEGC || state.MULTICOREGC) {
2497 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params __parameterlist__={");
2498 output.print(objectparams.numPointers());
2499 output.print(", "+localsprefixaddr);
2500 if (md.getThis()!=null) {
2502 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
2504 if (fc.getThis()!=null&&md.getThis()==null) {
2505 System.out.println("WARNING!!!!!!!!!!!!");
2506 System.out.println("Source code calls static method "+md+" on an object in "+fm.getMethod()+"!");
2509 for(int i=0; i<fc.numArgs(); i++) {
2510 Descriptor var=md.getParameter(i);
2511 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2512 if (objectparams.isParamPtr(paramtemp)) {
2513 TempDescriptor targ=fc.getArg(i);
2515 TypeDescriptor td=md.getParamType(i);
2517 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2519 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2522 output.println("};");
2527 if (fc.getReturnTemp()!=null)
2528 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
2530 /* Do we need to do virtual dispatch? */
2532 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)||fc.getSuper()) {
2534 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring);
2538 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2539 output.print("int ");
2540 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2541 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2543 output.print(md.getReturnType().getSafeSymbol()+" ");
2544 output.print("(*)(");
2546 boolean printcomma=false;
2547 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2548 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params * ");
2552 for(int i=0; i<objectparams.numPrimitives(); i++) {
2553 TempDescriptor temp=objectparams.getPrimitive(i);
2557 if (temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2558 output.print("int ");
2559 } else if (temp.getType().isClass()||temp.getType().isArray())
2560 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
2562 output.print(temp.getType().getSafeSymbol());
2565 if(md.getSymbol().equals("MonitorEnter") && state.OBJECTLOCKDEBUG) {
2566 output.print(", int");
2568 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
2572 boolean needcomma=false;
2573 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2574 output.print("&__parameterlist__");
2578 if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2579 if (fc.getThis()!=null) {
2580 TypeDescriptor ptd=null;
2581 if(md.getThis() != null) {
2582 ptd = md.getThis().getType();
2584 ptd = fc.getThis().getType();
2588 if(ptd.isClass() && ptd.getClassDesc().isEnum()) {
2590 } else if (ptd.isClass()&&!ptd.isArray())
2591 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2592 output.print(generateTemp(fm,fc.getThis()));
2597 for(int i=0; i<fc.numArgs(); i++) {
2598 Descriptor var=md.getParameter(i);
2599 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2600 if (objectparams.isParamPrim(paramtemp)) {
2601 TempDescriptor targ=fc.getArg(i);
2605 TypeDescriptor ptd=md.getParamType(i);
2606 if (ptd.isClass() && ptd.getClassDesc().isEnum()) {
2608 } else if (ptd.isClass()&&!ptd.isArray())
2609 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2610 output.print(generateTemp(fm, targ));
2614 if(md.getSymbol().equals("MonitorEnter") && state.OBJECTLOCKDEBUG) {
2615 output.println(", monitorenterline);");
2617 output.println(");");
2619 output.println(" }");
2622 protected boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
2623 if(thiscd.isInterface()) {
2624 // for interfaces, always need virtual dispatch
2627 Set subclasses=typeutil.getSubClasses(thiscd);
2628 if (subclasses==null)
2630 for(Iterator classit=subclasses.iterator(); classit.hasNext(); ) {
2631 ClassDescriptor cd=(ClassDescriptor)classit.next();
2632 Set possiblematches=cd.getMethodTable().getSetFromSameScope(md.getSymbol());
2633 for(Iterator matchit=possiblematches.iterator(); matchit.hasNext(); ) {
2634 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
2635 if (md.matches(matchmd))
2643 protected void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
2645 if(ffn.getField().isStatic()) {
2647 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2648 // is a static block or is invoked in some static block
2649 ClassDescriptor cd = fm.getMethod().getClassDesc();
2650 ClassDescriptor cn = ffn.getSrc().getType().getClassDesc();
2651 if(cd != cn && mgcstaticinit && callgraph.isInit(cn)) {
2652 // generate the static init check code if has not done the static init in main()
2653 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2654 // need to check if the class' static fields have been initialized and/or
2655 // its static blocks have been executed
2656 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2657 if(cn.getNumStaticBlocks() != 0) {
2658 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2659 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2660 output.print(" struct "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2661 output.println("0, NULL};");
2662 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"(& __parameterlist__);");
2664 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2667 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2669 output.println("}");
2673 // redirect to the global_defs_p structure
2674 if (ffn.getField().getType().isPtr())
2675 output.println(generateTemp(fm, ffn.getDst())+"=global_defs_p->"+ffn.getField().getSafeSymbol()+";");
2677 output.println(generateTemp(fm, ffn.getDst())+"=global_defsprim_p->"+ffn.getField().getSafeSymbol()+";");
2678 } else if (ffn.getField().isEnum()) {
2679 // an Enum value, directly replace the field access as int
2680 output.println(generateTemp(fm, ffn.getDst()) + "=" + ffn.getField().enumValue() + ";");
2682 if( state.CAPTURE_NULL_DEREFERENCES ) {
2683 output.println("#ifdef CAPTURE_NULL_DEREFERENCES");
2684 output.println("if (" + generateTemp(fm,ffn.getSrc()) + " == NULL) {");
2685 output.println("printf(\" NULL ptr error: %s, %s, %d \\n\", __FILE__, __func__, __LINE__);");
2686 if(state.MULTICOREGC) {
2687 output.println("failednullptr(&___locals___);");
2689 output.println("failednullptr(NULL);");
2691 output.println("}");
2692 output.println("#endif //CAPTURE_NULL_DEREFERENCES");
2694 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2699 protected void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
2700 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2701 throw new Error("Can't set array length");
2702 if (state.FASTCHECK) {
2703 String dst=generateTemp(fm, fsfn.getDst());
2704 output.println("if(!"+dst+"->"+localcopystr+") {");
2705 /* Link object into list */
2706 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2707 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2709 output.println("COPY_OBJ("+dst+");");
2710 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2711 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2712 output.println("}");
2715 if(fsfn.getField().isStatic()) {
2717 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2718 // is a static block or is invoked in some static block
2719 ClassDescriptor cd = fm.getMethod().getClassDesc();
2720 ClassDescriptor cn = fsfn.getDst().getType().getClassDesc();
2721 if(cd != cn && mgcstaticinit && callgraph.isInit(cn)) {
2722 // generate static init check code if has not done the static init in main()
2723 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2724 // need to check if the class' static fields have been initialized and/or
2725 // its static blocks have been executed
2726 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2727 if(cn.getNumStaticBlocks() != 0) {
2728 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2729 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2730 output.print(" struct "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2731 output.println("0, NULL};");
2732 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"(& __parameterlist__);");
2734 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2737 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2739 output.println("}");
2743 // redirect to the global_defs_p structure
2744 if (fsfn.getField().getType().isPtr()) {
2745 if (fsfn.getField().getType()!=fsfn.getSrc().getType())
2746 output.println("global_defs_p->" +
2747 fsfn.getField().getSafeSymbol()+"=(struct "+ fsfn.getField().getType().getSafeSymbol()+" *)"+generateTemp(fm,fsfn.getSrc())+";");
2749 output.println("global_defs_p->" +
2750 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2752 output.println("global_defsprim_p->" +
2753 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2756 if( state.CAPTURE_NULL_DEREFERENCES ) {
2757 output.println("#ifdef CAPTURE_NULL_DEREFERENCES");
2758 output.println("if (" + generateTemp(fm,fsfn.getDst()) + " == NULL) {");
2759 output.println("printf(\" NULL ptr error: %s, %s, %d \\n\", __FILE__, __func__, __LINE__);");
2760 if(state.MULTICOREGC) {
2761 output.println("failednullptr(&___locals___);");
2763 output.println("failednullptr(NULL);");
2765 output.println("}");
2766 output.println("#endif //CAPTURE_NULL_DEREFERENCES");
2769 if (fsfn.getSrc().getType().isPtr()&&fsfn.getSrc().getType()!=fsfn.getField().getType())
2770 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2771 fsfn.getField().getSafeSymbol()+"=(struct "+ fsfn.getField().getType().getSafeSymbol()+"*)"+generateTemp(fm,fsfn.getSrc())+";");
2773 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2774 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2779 protected void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
2780 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2783 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2785 } else if (elementtype.isArray()||elementtype.isClass())
2788 type=elementtype.getSafeSymbol()+" ";
2790 if (this.state.ARRAYBOUNDARYCHECK && fen.needsBoundsCheck()) {
2791 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fen.getIndex())+") >= "+generateTemp(fm,fen.getSrc()) + "->___length___))");
2792 output.println("failedboundschk(" + (boundschknum++) + ");");
2794 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
2797 protected void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
2798 //TODO: need dynamic check to make sure this assignment is actually legal
2799 //Because Object[] could actually be something more specific...ie. Integer[]
2801 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2804 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2806 } else if (elementtype.isArray()||elementtype.isClass() || (elementtype.isNull()))
2809 type=elementtype.getSafeSymbol()+" ";
2811 if (this.state.ARRAYBOUNDARYCHECK && fsen.needsBoundsCheck()) {
2812 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fsen.getIndex())+") >= "+generateTemp(fm,fsen.getDst()) + "->___length___))");
2813 output.println("failedboundschk(" + (boundschknum++) + ");");
2815 if (state.FASTCHECK) {
2816 String dst=generateTemp(fm, fsen.getDst());
2817 output.println("if(!"+dst+"->"+localcopystr+") {");
2818 /* Link object into list */
2819 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2820 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2822 output.println("COPY_OBJ("+dst+");");
2823 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2824 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2825 output.println("}");
2827 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
2831 protected void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
2832 if (fn.getType().isArray()) {
2833 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2834 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2835 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+localsprefixaddr+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2837 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2840 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2841 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+localsprefixaddr+", "+fn.getType().getClassDesc().getId()+");");
2843 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2846 if (state.FASTCHECK) {
2847 String dst=generateTemp(fm,fn.getDst());
2848 output.println(dst+"->___localcopy___=(struct ___Object___*)1;");
2849 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2850 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2854 protected void generateFlatTagDeclaration(FlatMethod fm, FlatTagDeclaration fn, PrintWriter output) {
2855 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2856 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+localsprefixaddr+", "+state.getTagId(fn.getType())+");");
2858 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+state.getTagId(fn.getType())+");");
2862 protected void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
2863 if (fon.getRight()!=null) {
2864 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2865 if (fon.getLeft().getType().isLong())
2866 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2868 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned int)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2871 if (fon.getLeft().getType().isPtr()&&fon.getLeft().getType()!=fon.getRight().getType()&&!fon.getRight().getType().isNull())
2872 output.println(generateTemp(fm, fon.getDest())+" = (struct "+fon.getRight().getType().getSafeSymbol()+"*)"+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
2874 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
2876 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2877 if (fon.getDest().getType().isPtr()&&fon.getDest().getType()!=fon.getLeft().getType())
2878 output.println(generateTemp(fm, fon.getDest())+" = (struct "+fon.getDest().getType().getSafeSymbol()+"*)"+generateTemp(fm, fon.getLeft())+";");
2880 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2881 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2882 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2883 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2884 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
2885 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2886 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
2887 else if (fon.getOp().getOp()==Operation.COMP)
2888 output.println(generateTemp(fm, fon.getDest())+" = ~"+generateTemp(fm, fon.getLeft())+";");
2889 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2890 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"->fses==NULL;");
2892 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
2895 protected void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
2896 /* TODO: Do type check here */
2897 if (fcn.getType().isArray()) {
2898 output.println(generateTemp(fm,fcn.getDst())+"=(struct ArrayObject *)"+generateTemp(fm,fcn.getSrc())+";");
2899 } else if (fcn.getType().isClass() && fcn.getType().getClassDesc().isEnum()) {
2900 output.println(generateTemp(fm,fcn.getDst())+"=(int)"+generateTemp(fm,fcn.getSrc())+";");
2901 } else if (fcn.getType().isClass())
2902 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
2904 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
2909 protected void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
2910 if (fln.getValue()==null)
2911 output.println(generateTemp(fm, fln.getDst())+"=0;");
2912 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2913 String str=(String)fln.getValue();
2914 output.println("{");
2915 output.print("short str"+flncount+"[]={");
2916 for(int i=0; i<str.length(); i++) {
2919 output.print(((int)str.charAt(i)));
2921 output.println("};");
2922 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2923 output.println(generateTemp(fm, fln.getDst())+"=NewStringShort("+localsprefixaddr+", str"+flncount+", "+((String)fln.getValue()).length()+");");
2925 output.println(generateTemp(fm, fln.getDst())+"=NewStringShort(str"+flncount+" ,"+((String)fln.getValue()).length()+");");
2927 output.println("}");
2929 } else if (fln.getType().isBoolean()) {
2930 if (((Boolean)fln.getValue()).booleanValue())
2931 output.println(generateTemp(fm, fln.getDst())+"=1;");
2933 output.println(generateTemp(fm, fln.getDst())+"=0;");
2934 } else if (fln.getType().isChar()) {
2935 int val=(int)(((Character)fln.getValue()).charValue());
2936 output.println(generateTemp(fm, fln.getDst())+"="+val+";");
2937 } else if (fln.getType().isLong()) {
2938 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+"LL;");
2940 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
2943 protected void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
2944 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2945 // a static block, check if it has been executed
2946 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2950 if (frn.getReturnTemp()!=null) {
2951 if (frn.getReturnTemp().getType().isPtr())
2952 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp())+";");
2954 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
2956 output.println("return;");
2960 protected void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
2961 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
2964 /** This method generates header information for the method or
2965 * task referenced by the Descriptor des. */
2966 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output) {
2967 generateHeader(fm, des, output, false);
2970 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output, boolean addSESErecord) {
2972 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
2973 MethodDescriptor md=null;
2974 TaskDescriptor task=null;
2975 if (des instanceof MethodDescriptor)
2976 md=(MethodDescriptor) des;
2978 task=(TaskDescriptor) des;
2979 String mdstring = md != null?md.getSafeMethodDescriptor():null;
2981 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2983 if (md!=null&&md.getReturnType()!=null) {
2984 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2985 output.print("int ");
2986 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2987 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2989 output.print(md.getReturnType().getSafeSymbol()+" ");
2991 //catch the constructor case
2992 output.print("void ");
2994 if(mgcstaticinit && !md.isStaticBlock() && !md.getModifiers().isNative()) {
2995 mdstring += "staticinit";
2997 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"(");
2999 output.print(task.getSafeSymbol()+"(");
3001 boolean printcomma=false;
3002 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
3004 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params * "+paramsprefix);
3006 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
3012 for(int i=0; i<objectparams.numPrimitives(); i++) {
3013 TempDescriptor temp=objectparams.getPrimitive(i);
3017 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
3018 output.print("int " + temp.getSafeSymbol());
3019 } else if (temp.getType().isClass()||temp.getType().isArray())
3020 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
3022 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
3024 output.println(") {");
3025 } else if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
3026 /* Imprecise Task */
3027 output.println("void * parameterarray[]) {");
3028 /* Unpack variables */
3029 for(int i=0; i<objectparams.numPrimitives(); i++) {
3030 TempDescriptor temp=objectparams.getPrimitive(i);
3031 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
3032 output.print("int " + temp.getSafeSymbol() + "=parameterarray["+i+"];");
3034 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
3037 for(int i=0; i<fm.numTags(); i++) {
3038 TempDescriptor temp=fm.getTag(i);
3039 int offset=i+objectparams.numPrimitives();
3040 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
3043 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
3044 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
3045 } else output.println(") {");
3048 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
3049 output.println("/* FlatFlagActionNode */");
3052 /* Process tag changes */
3053 Relation tagsettable=new Relation();
3054 Relation tagcleartable=new Relation();
3056 Iterator tagsit=ffan.getTempTagPairs();
3057 while (tagsit.hasNext()) {
3058 TempTagPair ttp=(TempTagPair) tagsit.next();
3059 TempDescriptor objtmp=ttp.getTemp();
3060 TagDescriptor tag=ttp.getTag();
3061 TempDescriptor tagtmp=ttp.getTagTemp();
3062 boolean tagstatus=ffan.getTagChange(ttp);
3064 tagsettable.put(objtmp, tagtmp);
3066 tagcleartable.put(objtmp, tagtmp);
3071 Hashtable flagandtable=new Hashtable();
3072 Hashtable flagortable=new Hashtable();
3074 /* Process flag changes */
3075 Iterator flagsit=ffan.getTempFlagPairs();
3076 while(flagsit.hasNext()) {
3077 TempFlagPair tfp=(TempFlagPair)flagsit.next();
3078 TempDescriptor temp=tfp.getTemp();
3079 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
3080 FlagDescriptor flag=tfp.getFlag();
3082 //Newly allocate objects that don't set any flags case
3083 if (flagortable.containsKey(temp)) {
3087 flagortable.put(temp,new Integer(mask));
3089 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
3090 boolean flagstatus=ffan.getFlagChange(tfp);
3093 if (flagortable.containsKey(temp)) {
3094 mask=((Integer)flagortable.get(temp)).intValue();
3097 flagortable.put(temp,new Integer(mask));
3099 int mask=0xFFFFFFFF;
3100 if (flagandtable.containsKey(temp)) {
3101 mask=((Integer)flagandtable.get(temp)).intValue();
3103 mask&=(0xFFFFFFFF^flagid);
3104 flagandtable.put(temp,new Integer(mask));
3110 HashSet flagtagset=new HashSet();
3111 flagtagset.addAll(flagortable.keySet());
3112 flagtagset.addAll(flagandtable.keySet());
3113 flagtagset.addAll(tagsettable.keySet());
3114 flagtagset.addAll(tagcleartable.keySet());
3116 Iterator ftit=flagtagset.iterator();
3117 while(ftit.hasNext()) {
3118 TempDescriptor temp=(TempDescriptor)ftit.next();
3121 Set tagtmps=tagcleartable.get(temp);
3122 if (tagtmps!=null) {
3123 Iterator tagit=tagtmps.iterator();
3124 while(tagit.hasNext()) {
3125 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
3126 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
3127 output.println("tagclear("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3129 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3133 tagtmps=tagsettable.get(temp);
3134 if (tagtmps!=null) {
3135 Iterator tagit=tagtmps.iterator();
3136 while(tagit.hasNext()) {
3137 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
3138 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
3139 output.println("tagset("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3141 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3146 int andmask=0xFFFFFFF;
3148 if (flagortable.containsKey(temp))
3149 ormask=((Integer)flagortable.get(temp)).intValue();
3150 if (flagandtable.containsKey(temp))
3151 andmask=((Integer)flagandtable.get(temp)).intValue();
3152 generateFlagOrAnd(ffan, fm, temp, output, ormask, andmask);
3153 generateObjectDistribute(ffan, fm, temp, output);
3157 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp,
3158 PrintWriter output, int ormask, int andmask) {
3159 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
3160 output.println("flagorandinit("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
3162 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
3166 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp, PrintWriter output) {
3167 output.println("enqueueObject("+generateTemp(fm, temp)+");");
3170 void generateOptionalHeader(PrintWriter headers) {
3173 headers.println("#include \"task.h\"\n\n");
3174 headers.println("#ifndef _OPTIONAL_STRUCT_");
3175 headers.println("#define _OPTIONAL_STRUCT_");
3177 //STRUCT PREDICATEMEMBER
3178 headers.println("struct predicatemember{");
3179 headers.println("int type;");
3180 headers.println("int numdnfterms;");
3181 headers.println("int * flags;");
3182 headers.println("int numtags;");
3183 headers.println("int * tags;\n};\n\n");
3185 //STRUCT OPTIONALTASKDESCRIPTOR
3186 headers.println("struct optionaltaskdescriptor{");
3187 headers.println("struct taskdescriptor * task;");
3188 headers.println("int index;");
3189 headers.println("int numenterflags;");
3190 headers.println("int * enterflags;");
3191 headers.println("int numpredicatemembers;");
3192 headers.println("struct predicatemember ** predicatememberarray;");
3193 headers.println("};\n\n");
3195 //STRUCT TASKFAILURE
3196 headers.println("struct taskfailure {");
3197 headers.println("struct taskdescriptor * task;");
3198 headers.println("int index;");
3199 headers.println("int numoptionaltaskdescriptors;");
3200 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
3202 //STRUCT FSANALYSISWRAPPER
3203 headers.println("struct fsanalysiswrapper{");
3204 headers.println("int flags;");
3205 headers.println("int numtags;");
3206 headers.println("int * tags;");
3207 headers.println("int numtaskfailures;");
3208 headers.println("struct taskfailure ** taskfailurearray;");
3209 headers.println("int numoptionaltaskdescriptors;");
3210 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
3212 //STRUCT CLASSANALYSISWRAPPER
3213 headers.println("struct classanalysiswrapper{");
3214 headers.println("int type;");
3215 headers.println("int numotd;");
3216 headers.println("struct optionaltaskdescriptor ** otdarray;");
3217 headers.println("int numfsanalysiswrappers;");
3218 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
3220 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
3222 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
3223 while(taskit.hasNext()) {
3224 TaskDescriptor td=(TaskDescriptor)taskit.next();
3225 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
3230 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
3231 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
3232 int predicateindex = 0;
3233 //iterate through the classes concerned by the predicate
3234 Set c_vard = predicate.vardescriptors;
3235 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
3238 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext(); ) {
3239 VarDescriptor vard = (VarDescriptor)vard_it.next();
3240 TypeDescriptor typed = vard.getType();
3242 //generate for flags
3243 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
3244 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3246 if (fen_hashset!=null) {
3247 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext(); ) {
3248 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
3250 DNFFlag dflag=fen.getDNF();
3251 numberterms+=dflag.size();
3253 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
3255 for(int j=0; j<dflag.size(); j++) {
3257 output.println(",");
3258 Vector term=dflag.get(j);
3261 for(int k=0; k<term.size(); k++) {
3262 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
3263 FlagDescriptor fd=dfa.getFlag();
3264 boolean negated=dfa.getNegated();
3265 int flagid=1<<((Integer)flags.get(fd)).intValue();
3270 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
3275 output.println("};\n");
3278 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
3279 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3282 for(int j=0; j<tagel.numTags(); j++) {
3284 output.println(",");
3285 TempDescriptor tmp=tagel.getTemp(j);
3286 if (!slotnumber.containsKey(tmp)) {
3287 Integer slotint=new Integer(current_slot++);
3288 slotnumber.put(tmp,slotint);
3290 int slot=slotnumber.get(tmp).intValue();
3291 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
3293 numtags = tagel.numTags();
3295 output.println("};");
3297 //store the result into a predicatemember struct
3298 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
3299 output.println("/*type*/"+typed.getClassDesc().getId()+",");
3300 output.println("/* number of dnf terms */"+numberterms+",");
3301 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3302 output.println("/* number of tag */"+numtags+",");
3303 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3304 output.println("};\n");
3309 //generate an array that stores the entire predicate
3310 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3311 for( int j = 0; j<predicateindex; j++) {
3312 if( j != predicateindex-1) output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3313 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
3315 output.println("};\n");
3316 return predicateindex;
3320 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
3321 generateOptionalHeader(headers);
3323 output.println("#include \"optionalstruct.h\"\n\n");
3324 output.println("#include \"stdlib.h\"\n");
3326 HashSet processedcd = new HashSet();
3328 Enumeration e = safeexecution.keys();
3329 while (e.hasMoreElements()) {
3332 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
3333 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp); //will be used several times
3335 //Generate the struct of optionals
3336 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
3337 numotd = c_otd.size();
3338 if(maxotd<numotd) maxotd = numotd;
3339 if( !c_otd.isEmpty() ) {
3340 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
3341 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
3343 //generate the int arrays for the predicate
3344 Predicate predicate = otd.predicate;
3345 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
3346 TreeSet<Integer> fsset=new TreeSet<Integer>();
3347 //iterate through possible FSes corresponding to
3348 //the state when entering
3350 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext(); ) {
3351 FlagState fs = (FlagState)fses.next();
3353 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
3354 FlagDescriptor flagd = (FlagDescriptor)flags.next();
3355 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
3358 fsset.add(new Integer(flagid));
3359 //tag information not needed because tag
3360 //changes are not tolerated.
3363 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3364 boolean needcomma=false;
3365 for(Iterator<Integer> it=fsset.iterator(); it.hasNext(); ) {
3368 output.println(it.next());
3371 output.println("};\n");
3374 //generate optionaltaskdescriptor that actually
3375 //includes exit fses, predicate and the task
3377 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
3378 output.println("&task_"+otd.td.getSafeSymbol()+",");
3379 output.println("/*index*/"+otd.getIndex()+",");
3380 output.println("/*number of enter flags*/"+fsset.size()+",");
3381 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3382 output.println("/*number of members */"+predicateindex+",");
3383 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3384 output.println("};\n");
3388 // if there are no optionals, there is no need to build the rest of the struct
3390 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
3391 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
3392 if( !c_otd.isEmpty() ) {
3393 boolean needcomma=false;
3394 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
3395 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
3397 output.println(",");
3399 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
3402 output.println("};\n");
3404 //get all the possible flagstates reachable by an object
3405 Hashtable hashtbtemp = safeexecution.get(cdtemp);
3407 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
3408 fsts.addAll(hashtbtemp.keySet());
3409 for(Iterator fsit=fsts.iterator(); fsit.hasNext(); ) {
3410 FlagState fs = (FlagState)fsit.next();
3413 //get the set of OptionalTaskDescriptors corresponding
3414 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
3415 //iterate through the OptionalTaskDescriptors and
3416 //store the pointers to the optionals struct (see on
3417 //top) into an array
3419 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
3420 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext(); ) {
3421 OptionalTaskDescriptor mm = mos.next();
3423 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
3425 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3428 output.println("};\n");
3430 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
3433 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
3434 FlagDescriptor flagd = (FlagDescriptor)flags.next();
3435 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
3439 //process tag information
3442 boolean first = true;
3443 Enumeration tag_enum = fs.getTags();
3444 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
3445 while(tag_enum.hasMoreElements()) {
3447 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
3451 output.println(", ");
3452 output.println("/*tagid*/"+state.getTagId(tagd));
3454 output.println("};");
3456 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
3457 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
3458 TaskIndex ti=itti.next();
3462 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
3464 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
3465 boolean needcomma=false;
3466 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator(); otdit.hasNext(); ) {
3467 OptionalTaskDescriptor otd=otdit.next();
3471 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
3473 output.println("};");
3475 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
3476 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
3477 output.print(ti.getIndex()+", ");
3478 output.print(otdset.size()+", ");
3479 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
3480 output.println("};");
3483 tiset=sa.getTaskIndex(fs);
3484 boolean needcomma=false;
3486 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
3487 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
3488 TaskIndex ti=itti.next();
3489 if (ti.isRuntime()) {
3496 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
3498 output.println("};\n");
3500 //Store the result in fsanalysiswrapper
3502 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
3503 output.println("/*flag*/"+flagid+",");
3504 output.println("/* number of tags*/"+tagcounter+",");
3505 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
3506 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
3507 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
3508 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
3509 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
3510 output.println("};\n");
3514 //Build the array of fsanalysiswrappers
3515 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
3516 boolean needcomma=false;
3517 for(int i = 0; i<fscounter; i++) {
3518 if (needcomma) output.print(",");
3519 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
3522 output.println("};");
3524 //Build the classanalysiswrapper referring to the previous array
3525 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
3526 output.println("/*type*/"+cdtemp.getId()+",");
3527 output.println("/*numotd*/"+numotd+",");
3528 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
3529 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
3530 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
3531 processedcd.add(cdtemp);
3534 //build an array containing every classes for which code has been build
3535 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
3536 for(int i=0; i<state.numClasses(); i++) {
3537 ClassDescriptor cn=cdarray[i];
3540 if ((cn != null) && (processedcd.contains(cn)))
3541 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
3543 output.print("NULL");
3545 output.println("};");
3547 output.println("#define MAXOTD "+maxotd);
3548 headers.println("#endif");
3551 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
3552 Relation r=new Relation();
3553 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator(); otdit.hasNext(); ) {
3554 OptionalTaskDescriptor otd=otdit.next();
3555 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
3559 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
3560 for(Iterator it=r.keySet().iterator(); it.hasNext(); ) {
3561 Set s=r.get(it.next());
3562 for(Iterator it2=s.iterator(); it2.hasNext(); ) {
3563 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
3571 // override these methods in a subclass of BuildCode
3572 // to generate code for additional systems
3573 protected void printExtraArrayFields(PrintWriter outclassdefs) {
3575 protected void outputTransCode(PrintWriter output) {
3577 protected void buildCodeSetup() {
3579 protected void generateSizeArrayExtensions(PrintWriter outclassdefs) {
3581 protected void additionalIncludesMethodsHeader(PrintWriter outmethodheader) {
3583 protected void preCodeGenInitialization() {
3585 protected void postCodeGenCleanUp() {
3587 protected void additionalCodeGen(PrintWriter outmethodheader,
3588 PrintWriter outstructs,
3589 PrintWriter outmethod) {
3591 protected void additionalCodeAtTopOfMain(PrintWriter outmethod) {
3593 protected void additionalCodeAtBottomOfMain(PrintWriter outmethod) {
3595 protected void additionalIncludesMethodsImplementation(PrintWriter outmethod) {
3597 protected void additionalIncludesStructsHeader(PrintWriter outstructs) {
3599 protected void additionalClassObjectFields(PrintWriter outclassdefs) {
3601 protected void additionalCodeAtTopMethodsImplementation(PrintWriter outmethod) {
3603 protected void additionalCodeAtTopFlatMethodBody(PrintWriter output, FlatMethod fm) {
3605 protected void additionalCodePreNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
3607 protected void additionalCodePostNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
3610 private void printSourceLineNumber(FlatMethod fm, FlatNode fn, PrintWriter output) {
3611 // we do not print out line number if no one explicitly set the number
3612 if(fn.getNumLine()!=-1) {
3614 int lineNum=fn.getNumLine();
3616 // do not generate the line number if it is same as the previous one
3617 boolean needtoprint;
3618 if(fn.prev.size()==0) {
3624 for(int i=0; i<fn.prev.size(); i++) {
3625 int prevLineNum=((FlatNode)fn.prev.get(i)).getNumLine();
3626 if(prevLineNum!=lineNum) {
3632 output.println("// "+fm.getMethod().getClassDesc().getSourceFileName()+":"+fn.getNumLine());