163 lines
6.0 KiB
Java
163 lines
6.0 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.examples.drivers;
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import java.io.File;
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import java.io.IOException;
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import java.util.Properties;
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import com.ibm.wala.cfg.cdg.ControlDependenceGraph;
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import com.ibm.wala.classLoader.IMethod;
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import com.ibm.wala.core.tests.callGraph.CallGraphTestUtil;
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import com.ibm.wala.examples.properties.WalaExamplesProperties;
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import com.ibm.wala.ipa.callgraph.AnalysisCache;
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import com.ibm.wala.ipa.callgraph.AnalysisOptions;
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import com.ibm.wala.ipa.callgraph.AnalysisScope;
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import com.ibm.wala.ipa.callgraph.impl.Everywhere;
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import com.ibm.wala.ipa.cha.ClassHierarchy;
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import com.ibm.wala.properties.WalaProperties;
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import com.ibm.wala.ssa.IR;
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import com.ibm.wala.ssa.ISSABasicBlock;
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import com.ibm.wala.ssa.SSAInstruction;
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import com.ibm.wala.ssa.SSAOptions;
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import com.ibm.wala.types.MethodReference;
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import com.ibm.wala.util.WalaException;
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import com.ibm.wala.util.config.AnalysisScopeReader;
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import com.ibm.wala.util.debug.Assertions;
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import com.ibm.wala.util.io.FileProvider;
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import com.ibm.wala.util.strings.StringStuff;
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import com.ibm.wala.viz.DotUtil;
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import com.ibm.wala.viz.PDFViewUtil;
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/**
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*
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* This simple example application builds a WALA CDG and fires off ghostview
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* to viz a DOT representation.
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*
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* @author sfink
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*/
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public class PDFControlDependenceGraph {
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final public static boolean SANITIZE_CFG = false;
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final public static String PDF_FILE = "cdg.pdf";
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/**
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* Usage: GVControlDependenceGraph -appJar [jar file name] -sig [method signature] The "jar
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* file name" should be something like "c:/temp/testdata/java_cup.jar" The
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* signature should be something like "java_cup.lexer.advance()V"
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*
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* @param args
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* @throws IOException
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*/
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public static void main(String[] args) throws IOException {
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run(args);
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}
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/**
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* @param args
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* -appJar [jar file name] -sig [method signature] The "jar file
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* name" should be something like "c:/temp/testdata/java_cup.jar" The
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* signature should be something like "java_cup.lexer.advance()V"
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* @throws IOException
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*/
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public static Process run(String[] args) throws IOException {
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validateCommandLine(args);
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return run(args[1], args[3]);
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}
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/**
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* @param appJar
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* should be something like "c:/temp/testdata/java_cup.jar"
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* @param methodSig
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* should be something like "java_cup.lexer.advance()V"
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* @throws IOException
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*/
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public static Process run(String appJar, String methodSig) throws IOException {
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try {
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if (PDFCallGraph.isDirectory(appJar)) {
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appJar = PDFCallGraph.findJarFiles(new String[] { appJar });
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}
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AnalysisScope scope = AnalysisScopeReader.makeJavaBinaryAnalysisScope(appJar, (new FileProvider()).getFile(CallGraphTestUtil.REGRESSION_EXCLUSIONS));
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ClassHierarchy cha = ClassHierarchy.make(scope);
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MethodReference mr = StringStuff.makeMethodReference(methodSig);
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IMethod m = cha.resolveMethod(mr);
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if (m == null) {
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System.err.println("could not resolve " + mr);
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throw new RuntimeException();
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}
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AnalysisOptions options = new AnalysisOptions();
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options.getSSAOptions().setPiNodePolicy(SSAOptions.getAllBuiltInPiNodes());
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AnalysisCache cache = new AnalysisCache();
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IR ir = cache.getSSACache().findOrCreateIR(m, Everywhere.EVERYWHERE, options.getSSAOptions() );
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if (ir == null) {
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Assertions.UNREACHABLE("Null IR for " + m);
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}
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System.err.println(ir.toString());
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ControlDependenceGraph<SSAInstruction, ISSABasicBlock> cdg = new ControlDependenceGraph<SSAInstruction, ISSABasicBlock>(ir.getControlFlowGraph());
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Properties wp = null;
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try {
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wp = WalaProperties.loadProperties();
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wp.putAll(WalaExamplesProperties.loadProperties());
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} catch (WalaException e) {
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e.printStackTrace();
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Assertions.UNREACHABLE();
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}
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String psFile = wp.getProperty(WalaProperties.OUTPUT_DIR) + File.separatorChar + PDFControlDependenceGraph.PDF_FILE;
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String dotFile = wp.getProperty(WalaProperties.OUTPUT_DIR) + File.separatorChar
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+ PDFTypeHierarchy.DOT_FILE;
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String dotExe = wp.getProperty(WalaExamplesProperties.DOT_EXE);
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String gvExe = wp.getProperty(WalaExamplesProperties.PDFVIEW_EXE);
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DotUtil.dotify(cdg, PDFViewUtil.makeIRDecorator(ir), dotFile, psFile, dotExe);
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return PDFViewUtil.launchPDFView(psFile, gvExe);
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} catch (WalaException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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return null;
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}
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}
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/**
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* Validate that the command-line arguments obey the expected usage.
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*
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* Usage:
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* <ul>
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* <li> args[0] : "-appJar"
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* <li> args[1] : something like "c:/temp/testdata/java_cup.jar"
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* <li> args[2] : "-sig"
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* <li> args[3] : a method signature like "java_cup.lexer.advance()V" </ul?
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*
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* @param args
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* @throws UnsupportedOperationException
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* if command-line is malformed.
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*/
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static void validateCommandLine(String[] args) {
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if (args.length != 4) {
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throw new UnsupportedOperationException("must have at exactly 4 command-line arguments");
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}
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if (!args[0].equals("-appJar")) {
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throw new UnsupportedOperationException("invalid command-line, args[0] should be -appJar, but is " + args[0]);
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}
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if (!args[2].equals("-sig")) {
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throw new UnsupportedOperationException("invalid command-line, args[2] should be -sig, but is " + args[0]);
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}
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}
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} |