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-rw-r--r--src/classes/com/sun/gluegen/GlueGen.java319
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diff --git a/src/classes/com/sun/gluegen/GlueGen.java b/src/classes/com/sun/gluegen/GlueGen.java
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--- a/src/classes/com/sun/gluegen/GlueGen.java
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-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package com.sun.gluegen;
-
-import java.io.*;
-import java.util.*;
-
-import antlr.*;
-import antlr.collections.*;
-import com.sun.gluegen.cgram.*;
-import com.sun.gluegen.cgram.types.*;
-import com.sun.gluegen.pcpp.*;
-
-/** Glue code generator for C functions and data structures. */
-
-public class GlueGen implements GlueEmitterControls {
- private java.util.List forcedStructNames = new ArrayList();
- private PCPP preprocessor;
-
- public void forceStructEmission(String typedefName) {
- forcedStructNames.add(typedefName);
- }
-
- public String findHeaderFile(String headerFileName) {
- return preprocessor.findFile(headerFileName);
- }
-
- public void run(String[] args) {
- try {
- Reader reader = null;
- String filename = null;
- String emitterClass = null;
- java.util.List cfgFiles = new ArrayList();
-
- if (args.length == 0) {
- usage();
- }
-
- java.util.List includePaths = new ArrayList();
- for (int i = 0; i < args.length; i++) {
- if (i < args.length - 1) {
- String arg = args[i];
- if (arg.startsWith("-I")) {
- String[] paths = arg.substring(2).split(System.getProperty("path.separator"));
- for (int j = 0; j < paths.length; j++) {
- includePaths.add(paths[j]);
- }
- } else if (arg.startsWith("-E")) {
- emitterClass = arg.substring(2);
- } else if (arg.startsWith("-C")) {
- cfgFiles.add(arg.substring(2));
- } else {
- usage();
- }
- } else {
- String arg = args[i];
- if (arg.equals("-")) {
- reader = new InputStreamReader(System.in);
- filename = "standard input";
- } else {
- if (arg.startsWith("-")) {
- usage();
- }
- filename = arg;
- reader = new BufferedReader(new FileReader(filename));
- }
- }
- }
-
- preprocessor = new PCPP(includePaths);
- PipedInputStream ppIn = new PipedInputStream();
- final PipedOutputStream ppOut = new PipedOutputStream(ppIn);
- preprocessor.setOut(ppOut);
- final Reader rdr = reader;
- final String fn = filename;
- new Thread(new Runnable() {
- public void run() {
- try {
- preprocessor.run(rdr, fn);
- ppOut.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }).start();
-
- DataInputStream dis = new DataInputStream(ppIn);
- GnuCLexer lexer = new GnuCLexer(dis);
- lexer.setTokenObjectClass(CToken.class.getName());
- lexer.initialize();
- // Parse the input expression.
- GnuCParser parser = new GnuCParser(lexer);
-
- // set AST node type to TNode or get nasty cast class errors
- parser.setASTNodeType(TNode.class.getName());
- TNode.setTokenVocabulary(GNUCTokenTypes.class.getName());
-
- // invoke parser
- try {
- parser.translationUnit();
- }
- catch (RecognitionException e) {
- System.err.println("Fatal IO error:\n"+e);
- System.exit(1);
- }
- catch (TokenStreamException e) {
- System.err.println("Fatal IO error:\n"+e);
- System.exit(1);
- }
-
- HeaderParser headerParser = new HeaderParser();
- TypeDictionary td = new TypeDictionary();
- headerParser.setTypedefDictionary(td);
- TypeDictionary sd = new TypeDictionary();
- headerParser.setStructDictionary(sd);
- // set AST node type to TNode or get nasty cast class errors
- headerParser.setASTNodeType(TNode.class.getName());
- // walk that tree
- headerParser.translationUnit( parser.getAST() );
-
- // For debugging: Dump type dictionary and struct dictionary to System.err
- //td.dumpDictionary(System.err, "All Types");
- //sd.dumpDictionary(System.err, "All Structs");
-
- // At this point we have all of the pieces we need in order to
- // generate glue code: the #defines to constants, the set of
- // typedefs, and the set of functions.
-
- GlueEmitter emit = null;
- if (emitterClass == null) {
- emit = new JavaEmitter();
- } else {
- try {
- emit = (GlueEmitter) Class.forName(emitterClass).newInstance();
- } catch (Exception e) {
- System.err.println("Exception occurred while instantiating emitter class. Exiting.");
- e.printStackTrace();
- System.exit(1);
- }
- }
-
- for (Iterator iter = cfgFiles.iterator(); iter.hasNext(); ) {
- emit.readConfigurationFile((String) iter.next());
- }
-
- // Provide MachineDescriptions to emitter
- MachineDescription md32 = new MachineDescription32Bit();
- MachineDescription md64 = new MachineDescription64Bit();
- emit.setMachineDescription(md32, md64);
-
- // begin emission of glue code
- emit.beginEmission(this);
-
- emit.beginDefines();
- Set emittedDefines = new HashSet(100);
- // emit java equivalent of enum { ... } statements
- for (Iterator iter = headerParser.getEnums().iterator(); iter.hasNext(); ) {
- EnumType enumeration = (EnumType)iter.next();
- // iterate over all values in the enumeration
- for (int i = 0; i < enumeration.getNumEnumerates(); ++i) {
- String enumElementName = enumeration.getEnumName(i);
- if (emittedDefines.contains(enumElementName) == false) {
- emittedDefines.add(enumElementName);
- String comment = null;
- if (! enumeration.getName().equals("<anonymous>")) {
- comment = "Defined as part of enum type \"" +
- enumeration.getName() + "\"";
- }
- emit.emitDefine(
- enumElementName,
- String.valueOf(enumeration.getEnumValue(i)),
- comment);
- }
- }
- }
- // emit java equivalent of #define statements
- for (Iterator iter = lexer.getDefines().iterator(); iter.hasNext(); ) {
- Define def = (Define) iter.next();
- if (emittedDefines.contains(def.getName()) == false) {
- emittedDefines.add(def.getName());
- emit.emitDefine(def.getName(), def.getValue(), null);
- }
- }
- emit.endDefines();
-
- java.util.List functions = headerParser.getParsedFunctions();
-
- // Iterate through the functions finding structs that are referenced in
- // the function signatures; these will be remembered for later emission
- ReferencedStructs referencedStructs = new ReferencedStructs();
- for (Iterator iter = functions.iterator(); iter.hasNext(); ) {
- FunctionSymbol sym = (FunctionSymbol) iter.next();
- // FIXME: this doesn't take into account the possibility that some of
- // the functions we send to emitMethodBindings() might not actually be
- // emitted (e.g., if an Ignore directive in the JavaEmitter causes it
- // to be skipped).
- sym.getType().visit(referencedStructs);
- }
-
- // Normally only referenced types will be emitted. The user can force a
- // type to be emitted via a .cfg file directive. Those directives are
- // processed here.
- for (Iterator iter = forcedStructNames.iterator(); iter.hasNext(); ) {
- String name = (String) iter.next();
- Type type = td.get(name);
- if (type == null) {
- System.err.println("WARNING: during forced struct emission: struct \"" + name + "\" not found");
- } else if (!type.isCompound()) {
- System.err.println("WARNING: during forced struct emission: type \"" + name + "\" was not a struct");
- } else {
- type.visit(referencedStructs);
- }
- }
-
- // Lay out structs
- emit.beginStructLayout();
- for (Iterator iter = referencedStructs.results(); iter.hasNext(); ) {
- Type t = (Type) iter.next();
- if (t.isCompound()) {
- emit.layoutStruct(t.asCompound());
- } else if (t.isPointer()) {
- PointerType p = t.asPointer();
- CompoundType c = p.getTargetType().asCompound();
- emit.layoutStruct(c);
- }
- }
- emit.endStructLayout();
-
- // Emit structs
- emit.beginStructs(td, sd, headerParser.getCanonMap());
- for (Iterator iter = referencedStructs.results(); iter.hasNext(); ) {
- Type t = (Type) iter.next();
- if (t.isCompound()) {
- emit.emitStruct(t.asCompound(), null);
- } else if (t.isPointer()) {
- PointerType p = t.asPointer();
- CompoundType c = p.getTargetType().asCompound();
- assert p.hasTypedefedName() && c.getName() == null : "ReferencedStructs incorrectly recorded pointer type " + p;
- emit.emitStruct(c, p.getName());
- }
- }
- emit.endStructs();
-
- // emit java and C code to interface with the native functions
- emit.beginFunctions(td, sd, headerParser.getCanonMap());
- emit.emitFunctions(functions);
- emit.endFunctions();
-
- // end emission of glue code
- emit.endEmission();
-
- } catch ( Exception e ) {
- e.printStackTrace();
- System.err.println("Exception occurred while generating glue code. Exiting.");
- System.exit(1);
- }
- }
-
- public static void main(String[] args) {
- new GlueGen().run(args);
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private static void usage() {
- System.out.println("Usage: java GlueGen [-I...] [-Eemitter_class_name] [-Ccfg_file_name...] <filename | ->");
- System.out.println();
- System.out.println("Runs C header parser on input file or standard input, first");
- System.out.println("passing input through minimal pseudo-C-preprocessor. Use -I");
- System.out.println("command-line arguments to specify the search path for #includes.");
- System.out.println("Emitter class name can be specified with -E option: i.e.,");
- System.out.println("-Ecom.sun.gluegen.JavaEmitter (the default). Use");
- System.out.println("-Ecom.sun.gluegen.DebugEmitter to print recognized entities");
- System.out.println("(#define directives to constant numbers, typedefs, and function");
- System.out.println("declarations) to standard output. Emitter-specific configuration");
- System.out.println("file or files can be specified with -C option; e.g,");
- System.out.println("-Cjava-emitter.cfg.");
- System.exit(1);
- }
-}
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