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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.dx.command.dump;
     18 
     19 import com.android.dx.cf.iface.ParseException;
     20 import com.android.dx.util.FileUtils;
     21 import com.android.dx.util.HexParser;
     22 
     23 import java.io.UnsupportedEncodingException;
     24 
     25 /**
     26  * Main class for the class file dumper.
     27  */
     28 public class Main {
     29 
     30     static Args parsedArgs = new Args();
     31 
     32     /**
     33      * This class is uninstantiable.
     34      */
     35     private Main() {
     36         // This space intentionally left blank.
     37     }
     38 
     39     /**
     40      * Run!
     41      */
     42     public static void main(String[] args) {
     43         int at = 0;
     44 
     45         for (/*at*/; at < args.length; at++) {
     46             String arg = args[at];
     47             if (arg.equals("--") || !arg.startsWith("--")) {
     48                 break;
     49             } else if (arg.equals("--bytes")) {
     50                 parsedArgs.rawBytes = true;
     51             } else if (arg.equals("--basic-blocks")) {
     52                 parsedArgs.basicBlocks = true;
     53             } else if (arg.equals("--rop-blocks")) {
     54                 parsedArgs.ropBlocks = true;
     55             } else if (arg.equals("--optimize")) {
     56                 parsedArgs.optimize = true;
     57             } else if (arg.equals("--ssa-blocks")) {
     58                 parsedArgs.ssaBlocks = true;
     59             } else if (arg.startsWith("--ssa-step=")) {
     60                 parsedArgs.ssaStep = arg.substring(arg.indexOf('=') + 1);
     61             } else if (arg.equals("--debug")) {
     62                 parsedArgs.debug = true;
     63             } else if (arg.equals("--dot")) {
     64                 parsedArgs.dotDump = true;
     65             } else if (arg.equals("--strict")) {
     66                 parsedArgs.strictParse = true;
     67             } else if (arg.startsWith("--width=")) {
     68                 arg = arg.substring(arg.indexOf('=') + 1);
     69                 parsedArgs.width = Integer.parseInt(arg);
     70             } else if (arg.startsWith("--method=")) {
     71                 arg = arg.substring(arg.indexOf('=') + 1);
     72                 parsedArgs.method = arg;
     73             } else {
     74                 System.err.println("unknown option: " + arg);
     75                 throw new RuntimeException("usage");
     76             }
     77         }
     78 
     79         if (at == args.length) {
     80             System.err.println("no input files specified");
     81             throw new RuntimeException("usage");
     82         }
     83 
     84         for (/*at*/; at < args.length; at++) {
     85             try {
     86                 String name = args[at];
     87                 System.out.println("reading " + name + "...");
     88                 byte[] bytes = FileUtils.readFile(name);
     89                 if (!name.endsWith(".class")) {
     90                     String src;
     91                     try {
     92                         src = new String(bytes, "utf-8");
     93                     } catch (UnsupportedEncodingException ex) {
     94                         throw new RuntimeException("shouldn't happen", ex);
     95                     }
     96                     bytes = HexParser.parse(src);
     97                 }
     98                 processOne(name, bytes);
     99             } catch (ParseException ex) {
    100                 System.err.println("\ntrouble parsing:");
    101                 if (parsedArgs.debug) {
    102                     ex.printStackTrace();
    103                 } else {
    104                     ex.printContext(System.err);
    105                 }
    106             }
    107         }
    108     }
    109 
    110     /**
    111      * Processes one file.
    112      *
    113      * @param name {@code non-null;} name of the file
    114      * @param bytes {@code non-null;} contents of the file
    115      */
    116     private static void processOne(String name, byte[] bytes) {
    117         if (parsedArgs.dotDump) {
    118             DotDumper.dump(bytes, name, parsedArgs);
    119         } else if (parsedArgs.basicBlocks) {
    120             BlockDumper.dump(bytes, System.out, name, false, parsedArgs);
    121         } else if (parsedArgs.ropBlocks) {
    122             BlockDumper.dump(bytes, System.out, name, true, parsedArgs);
    123         } else if (parsedArgs.ssaBlocks) {
    124             // --optimize ignored with --ssa-blocks
    125             parsedArgs.optimize = false;
    126             SsaDumper.dump(bytes, System.out, name, parsedArgs);
    127         } else {
    128             ClassDumper.dump(bytes, System.out, name, parsedArgs);
    129         }
    130     }
    131 }
    132