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-rw-r--r--src/java/com/sun/gluegen/GlueGen.java591
1 files changed, 301 insertions, 290 deletions
diff --git a/src/java/com/sun/gluegen/GlueGen.java b/src/java/com/sun/gluegen/GlueGen.java
index 6a05d13..8d2144a 100644
--- a/src/java/com/sun/gluegen/GlueGen.java
+++ b/src/java/com/sun/gluegen/GlueGen.java
@@ -36,7 +36,6 @@
* 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.*;
@@ -47,311 +46,323 @@ 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. */
+import static java.lang.System.*;
+/** Glue code generator for C functions and data structures. */
public class GlueGen implements GlueEmitterControls {
+
+ private List<String> forcedStructNames = new ArrayList<String>();
+ private PCPP preprocessor;
- private List<String> forcedStructNames = new ArrayList<String>();
- private PCPP preprocessor;
-
- // State for SymbolFilters
- private List<ConstantDefinition> constants;
- private List<FunctionSymbol> functions;
-
- public void forceStructEmission(String typedefName) {
- forcedStructNames.add(typedefName);
- }
-
- public String findHeaderFile(String headerFileName) {
- return preprocessor.findFile(headerFileName);
- }
-
- public void runSymbolFilter(SymbolFilter filter) {
- filter.filterSymbols(constants, functions);
- List<ConstantDefinition> newConstants = filter.getConstants();
- List<FunctionSymbol> newFunctions = filter.getFunctions();
- if (newConstants != null) {
- constants = newConstants;
+ // State for SymbolFilters
+ private List<ConstantDefinition> constants;
+ private List<FunctionSymbol> functions;
+
+ public void forceStructEmission(String typedefName) {
+ forcedStructNames.add(typedefName);
}
- if (newFunctions != null) {
- functions = newFunctions;
+
+ public String findHeaderFile(String headerFileName) {
+ return preprocessor.findFile(headerFileName);
}
- }
-
- @SuppressWarnings("unchecked")
- public void run(String[] args) {
- try {
- Reader reader = null;
- String filename = null;
- String emitterClass = null;
- String outputRootDir = null;
- List<String> cfgFiles = new ArrayList<String>();
-
- if (args.length == 0) {
- usage();
- }
-
- List<String> includePaths = new ArrayList<String>();
- 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("-O")) {
- outputRootDir = arg.substring(2);
- } 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));
- }
+
+ public void runSymbolFilter(SymbolFilter filter) {
+ filter.filterSymbols(constants, functions);
+ List<ConstantDefinition> newConstants = filter.getConstants();
+ List<FunctionSymbol> newFunctions = filter.getFunctions();
+ if (newConstants != null) {
+ constants = newConstants;
+ }
+ if (newFunctions != null) {
+ functions = newFunctions;
}
- }
-
- 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() {
+ }
+
+
+ @SuppressWarnings("unchecked")
+ public void run(final Reader reader, final String filename, Class<?> emitterClass, List<String> includePaths, List<String> cfgFiles, String outputRootDir) {
+
+ try {
+ final PipedInputStream ppIn = new PipedInputStream();
+ final PipedOutputStream ppOut = new PipedOutputStream(ppIn);
+
+ preprocessor = new PCPP(includePaths);
+ preprocessor.setOut(ppOut);
+
+ new Thread("PCPP") {
+
+ @Override
+ public void run() {
+ try {
+ preprocessor.run(reader, filename);
+ ppOut.close();
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ }
+ }
+ }.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.setASTNodeClass(TNode.class.getName());
+ TNode.setTokenVocabulary(GNUCTokenTypes.class.getName());
+
+ // invoke parser
try {
- preprocessor.run(rdr, fn);
- ppOut.close();
- } catch (IOException e) {
- e.printStackTrace();
+ parser.translationUnit();
+ } catch (RecognitionException e) {
+ throw new RuntimeException("Fatal IO error", e);
+ } catch (TokenStreamException e) {
+ throw new RuntimeException("Fatal IO error", e);
}
- }
- }).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.setASTNodeClass(TNode.class.getName());
- TNode.setTokenVocabulary(GNUCTokenTypes.class.getName());
-
- // invoke parser
- try {
- parser.translationUnit();
- } catch (RecognitionException e) {
- throw new RuntimeException("Fatal IO error", e);
- } catch (TokenStreamException e) {
- throw new RuntimeException("Fatal IO error", e);
- }
-
- 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.setASTNodeClass(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();
+
+ 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.setASTNodeClass(TNode.class.getName());
+ // walk that tree
+ headerParser.translationUnit(parser.getAST());
+
+ // For debugging: Dump type dictionary and struct dictionary to System.err
+ //td.dumpDictionary(err, "All Types");
+ //sd.dumpDictionary(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) emitterClass.newInstance();
+ } catch (Exception e) {
+ throw new RuntimeException("Exception occurred while instantiating emitter class.", e);
+ }
+ }
+
+ for (String config : cfgFiles) {
+ emit.readConfigurationFile(config);
+ }
+
+ if (null != outputRootDir && outputRootDir.trim().length() > 0) {
+ if (emit instanceof JavaEmitter) {
+ // FIXME: hack to interfere with the *Configuration setting via commandlines
+ JavaEmitter jemit = (JavaEmitter) emit;
+ if (null != jemit.getConfig()) {
+ jemit.getConfig().setOutputRootDir(outputRootDir);
+ }
+ }
+ }
+
+ // Provide MachineDescriptions to emitter
+ MachineDescription md32 = new MachineDescription32Bit();
+ MachineDescription md64 = new MachineDescription64Bit();
+ emit.setMachineDescription(md32, md64);
+
+ // Repackage the enum and #define statements from the parser into a common format
+ // so that SymbolFilters can operate upon both identically
+ constants = new ArrayList<ConstantDefinition>();
+ for (Object elem : headerParser.getEnums()) {
+ EnumType enumeration = (EnumType) elem;
+ String enumName = enumeration.getName();
+ if (enumName.equals("<anonymous>")) {
+ enumName = null;
+ }
+ // iterate over all values in the enumeration
+ for (int i = 0; i < enumeration.getNumEnumerates(); ++i) {
+ String enumElementName = enumeration.getEnumName(i);
+ String value = String.valueOf(enumeration.getEnumValue(i));
+ constants.add(new ConstantDefinition(enumElementName, value, true, enumName));
+ }
+ }
+ for (Object elem : lexer.getDefines()) {
+ Define def = (Define) elem;
+ constants.add(new ConstantDefinition(def.getName(), def.getValue(), false, null));
+ }
+
+ functions = headerParser.getParsedFunctions();
+
+ // begin emission of glue code
+ emit.beginEmission(this);
+
+ emit.beginDefines();
+ Set<String> emittedDefines = new HashSet<String>(100);
+ // emit java equivalent of enum { ... } statements
+ for (ConstantDefinition def : constants) {
+ if (!emittedDefines.contains(def.getName())) {
+ emittedDefines.add(def.getName());
+ String comment = null;
+ Set<String> aliases = def.getAliases();
+ if (aliases != null) {
+ comment = "Alias for: <code>";
+ for (String alias : aliases) {
+ comment += " " + alias;
+ }
+ comment += "</code>";
+ }
+ if (def.getEnumName() != null) {
+ String enumName = "Defined as part of enum type \"" + def.getEnumName() + "\"";
+ if (comment == null) {
+ comment = enumName;
+ } else {
+ comment += "<br>\n" + enumName;
+ }
+ }
+ emit.emitDefine(def, comment);
+ }
+ }
+ emit.endDefines();
+
+ // 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 (FunctionSymbol sym : functions) {
+ // 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 (String name : forcedStructNames) {
+ Type type = td.get(name);
+ if (type == null) {
+ err.println("WARNING: during forced struct emission: struct \"" + name + "\" not found");
+ } else if (!type.isCompound()) {
+ err.println("WARNING: during forced struct emission: type \"" + name + "\" was not a struct");
+ } else {
+ type.visit(referencedStructs);
+ }
+ }
+
+ // Lay out structs
+ emit.beginStructLayout();
+ for (Iterator<Type> iter = referencedStructs.results(); iter.hasNext();) {
+ Type t = 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<Type> iter = referencedStructs.results(); iter.hasNext();) {
+ Type t = 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) {
- throw new RuntimeException("Exception occurred while instantiating emitter class.", e);
- }
- }
-
- for (String cfgFile: cfgFiles) {
- emit.readConfigurationFile(cfgFile);
- }
-
- if(null!=outputRootDir && outputRootDir.trim().length()>0) {
- if(emit instanceof JavaEmitter) {
- // FIXME: hack to interfere with the *Configuration setting via commandlines
- JavaEmitter jemit = (JavaEmitter)emit;
- if(null!=jemit.getConfig()) {
- jemit.getConfig().setOutputRootDir(outputRootDir);
- }
+ throw new RuntimeException("Exception occurred while generating glue code.", e);
}
- }
-
- // Provide MachineDescriptions to emitter
- MachineDescription md32 = new MachineDescription32Bit();
- MachineDescription md64 = new MachineDescription64Bit();
- emit.setMachineDescription(md32, md64);
-
- // Repackage the enum and #define statements from the parser into a common format
- // so that SymbolFilters can operate upon both identically
- constants = new ArrayList<ConstantDefinition>();
- for (Object elem: headerParser.getEnums()) {
- EnumType enumeration = (EnumType)elem;
- String enumName = enumeration.getName();
- if (enumName.equals("<anonymous>")) {
- enumName = null;
- }
- // iterate over all values in the enumeration
- for (int i = 0; i < enumeration.getNumEnumerates(); ++i) {
- String enumElementName = enumeration.getEnumName(i);
- String value = String.valueOf(enumeration.getEnumValue(i));
- constants.add(new ConstantDefinition(enumElementName, value, true, enumName));
+ }
+
+ public static void main(String... args) {
+
+ if (args.length == 0) {
+ usage();
}
- }
- for (Object elem : lexer.getDefines()) {
- Define def = (Define)elem;
- constants.add(new ConstantDefinition(def.getName(), def.getValue(), false, null));
- }
-
- functions = headerParser.getParsedFunctions();
-
- // begin emission of glue code
- emit.beginEmission(this);
-
- emit.beginDefines();
- Set<String> emittedDefines = new HashSet<String>(100);
- // emit java equivalent of enum { ... } statements
- for (ConstantDefinition def : constants) {
- if (!emittedDefines.contains(def.getName())) {
- emittedDefines.add(def.getName());
- String comment = null;
- Set<String> aliases = def.getAliases();
- if (aliases != null) {
- comment = "Alias for: <code>";
- for (String alias : aliases) {
- comment += " " + alias;
- }
- comment += "</code>";
- }
- if (def.getEnumName() != null) {
- String enumName = "Defined as part of enum type \"" +
- def.getEnumName() + "\"";
- if (comment == null) {
- comment = enumName;
+
+ Reader reader = null;
+ String filename = null;
+ String emitterFQN = null;
+ String outputRootDir = null;
+ List<String> cfgFiles = new ArrayList<String>();
+
+ List<String> includePaths = new ArrayList<String>();
+ 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(getProperty("path.separator"));
+ includePaths.addAll(Arrays.asList(paths));
+ } else if (arg.startsWith("-O")) {
+ outputRootDir = arg.substring(2);
+ } else if (arg.startsWith("-E")) {
+ emitterFQN = arg.substring(2);
+ } else if (arg.startsWith("-C")) {
+ cfgFiles.add(arg.substring(2));
+ } else {
+ usage();
+ }
} else {
- comment += "<br>\n" + enumName;
+ String arg = args[i];
+ if (arg.equals("-")) {
+ reader = new InputStreamReader(in);
+ filename = "standard input";
+ } else {
+ if (arg.startsWith("-")) {
+ usage();
+ }
+ filename = arg;
+ try {
+ reader = new BufferedReader(new FileReader(filename));
+ } catch (FileNotFoundException ex) {
+ throw new RuntimeException("input file not found", ex);
+ }
+ }
}
- }
- emit.emitDefine(def, comment);
- }
- }
- emit.endDefines();
-
- // 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 (FunctionSymbol sym : functions) {
- // 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 (String name: forcedStructNames) {
- 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<Type> iter = referencedStructs.results(); iter.hasNext(); ) {
- Type t = 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<Type> iter = referencedStructs.results(); iter.hasNext(); ) {
- Type t = 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();
+ try {
+ Class<?> emitterClass = emitterFQN == null ? null : Class.forName(emitterFQN);
+ new GlueGen().run(reader, filename, emitterClass, includePaths, cfgFiles, outputRootDir);
+ } catch (ClassNotFoundException ex) {
+ throw new RuntimeException("specified emitter class was not in the classpath", ex);
+ }
- // end emission of glue code
- emit.endEmission();
+ }
- } catch ( Exception e ) {
- throw new RuntimeException("Exception occurred while generating glue code.", e);
+ //----------------------------------------------------------------------
+ // Internals only below this point
+ //
+ private static void usage() {
+ out.println("Usage: java GlueGen [-I...] [-Eemitter_class_name] [-Ccfg_file_name...] <filename | ->");
+ out.println();
+ out.println("Runs C header parser on input file or standard input, first");
+ out.println("passing input through minimal pseudo-C-preprocessor. Use -I");
+ out.println("command-line arguments to specify the search path for #includes.");
+ out.println("Emitter class name can be specified with -E option: i.e.,");
+ out.println("-Ecom.sun.gluegen.JavaEmitter (the default). Use");
+ out.println("-Ecom.sun.gluegen.DebugEmitter to print recognized entities");
+ out.println("(#define directives to constant numbers, typedefs, and function");
+ out.println("declarations) to standard output. Emitter-specific configuration");
+ out.println("file or files can be specified with -C option; e.g,");
+ out.println("-Cjava-emitter.cfg.");
+ 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);
- }
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 16:22:31 +0000