1 /*
2 * Copyright (c) 1996, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package org.openjdk.asmtools.jdis;
24
25 import org.openjdk.asmtools.common.Tool;
26 import org.openjdk.asmtools.util.I18NResourceBundle;
27 import org.openjdk.asmtools.util.ProductInfo;
28
29 import java.io.DataInputStream;
30 import java.io.PrintStream;
31 import java.io.PrintWriter;
32 import java.util.ArrayList;
33
34 /**
35 * Main program of the Java Disassembler :: class to jasm
36 */
37 public class Main extends Tool {
38
39 private Options options;
40
41 public static final I18NResourceBundle i18n
42 = I18NResourceBundle.getBundleForClass(Main.class);
43
44 public Main(PrintWriter out, PrintWriter err, String programName) {
45 super(out, err, programName);
46 // tool specific initialization
47 options = Options.OptionObject();
48 DebugFlag = () -> options.contains(Options.PR.DEBUG);
49 printCannotReadMsg = (fname) -> error( i18n.getString("jdis.error.cannot_read", fname));
50 }
51
52 public Main(PrintStream out, String program) {
53 this(new PrintWriter(out), new PrintWriter(System.err), program);
54 }
55
56 @Override
57 public void usage() {
58 println(i18n.getString("jdis.usage"));
59 println(i18n.getString("jdis.opt.g"));
60 println(i18n.getString("jdis.opt.sl"));
61 println(i18n.getString("jdis.opt.hx"));
62 println(i18n.getString("jdis.opt.v"));
63 println(i18n.getString("jdis.opt.version"));
64 }
65
66 /**
67 * Run the disassembler
68 */
69 public synchronized boolean disasm(String argv[]) {
70 ArrayList<String> files = new ArrayList<>();
71
72 // Parse arguments
73 for (int i = 0; i < argv.length; i++) {
74 String arg = argv[i];
75 switch (arg) {
76 case "-g":
77 options.setCodeOptions();
78 break;
79 case "-v":
80 options.set(Options.PR.DEBUG);
81 break;
82 case "-sl":
83 options.set(Options.PR.SRC);
84 break;
85 case "-hx":
86 options.set(Options.PR.HEX);
87 break;
88 case "-version":
89 out.println(ProductInfo.FULL_VERSION);
90 break;
91 default:
92 if (arg.startsWith("-")) {
93 error(i18n.getString("jdis.error.invalid_option", arg));
94 usage();
95 return false;
96 } else {
97 files.add(arg);
98 }
99 break;
100 }
101 }
102
103 if (files.isEmpty()) {
104 usage();
105 return false;
106 }
107
108 for (String fname : files) {
109 if (fname == null) {
110 continue;
111 } // cross out by CompilerChoice.compile
112 try {
113 ClassData cc = new ClassData(out, this);
114 cc.read(fname);
115 cc.print();
116 out.flush();
117 continue;
118 } catch (Error ee) {
119 if (DebugFlag.getAsBoolean())
120 ee.printStackTrace();
121 error(i18n.getString("jdis.error.fatal_error", fname));
122 } catch (Exception ee) {
123 if (DebugFlag.getAsBoolean())
124 ee.printStackTrace();
125 error(i18n.getString("jdis.error.fatal_exception", fname));
126 }
127 return false;
128 }
129 return true;
130 }
131
132 /**
133 * Main program
134 */
135 public static void main(String argv[]) {
136 Main disassembler = new Main(new PrintWriter(new uEscWriter(System.out)), new PrintWriter(System.err), "jdis");
137 boolean result = disassembler.disasm(argv);
138 System.exit(result ? 0 : 1);
139 }
140 }