Mon, 17 Apr 2017 11:46:11 -0700
Added tag jdk8u141-b05 for changeset f7fc5fc0e2cb
sundar@1213 | 1 | #// Usage: jjs -cp <asmtools.jar> jd.js -- <classname> [jdis|jdec] |
sundar@1213 | 2 | |
sundar@1213 | 3 | /* |
sundar@1213 | 4 | * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
sundar@1213 | 5 | * |
sundar@1213 | 6 | * Redistribution and use in source and binary forms, with or without |
sundar@1213 | 7 | * modification, are permitted provided that the following conditions |
sundar@1213 | 8 | * are met: |
sundar@1213 | 9 | * |
sundar@1213 | 10 | * - Redistributions of source code must retain the above copyright |
sundar@1213 | 11 | * notice, this list of conditions and the following disclaimer. |
sundar@1213 | 12 | * |
sundar@1213 | 13 | * - Redistributions in binary form must reproduce the above copyright |
sundar@1213 | 14 | * notice, this list of conditions and the following disclaimer in the |
sundar@1213 | 15 | * documentation and/or other materials provided with the distribution. |
sundar@1213 | 16 | * |
sundar@1213 | 17 | * - Neither the name of Oracle nor the names of its |
sundar@1213 | 18 | * contributors may be used to endorse or promote products derived |
sundar@1213 | 19 | * from this software without specific prior written permission. |
sundar@1213 | 20 | * |
sundar@1213 | 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
sundar@1213 | 22 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
sundar@1213 | 23 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
sundar@1213 | 24 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
sundar@1213 | 25 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
sundar@1213 | 26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
sundar@1213 | 27 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
sundar@1213 | 28 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
sundar@1213 | 29 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
sundar@1213 | 30 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
sundar@1213 | 31 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
sundar@1213 | 32 | */ |
sundar@1213 | 33 | |
sundar@1213 | 34 | // javap-like disassembler/decoder tool that disassembles/decodes |
sundar@1213 | 35 | // java classes but with OpenJDK AsmTools disassembler/decoder syntax. |
sundar@1213 | 36 | // You need to build asmtool.jar from OpenJDK codetools project |
sundar@1213 | 37 | // specify it with -cp option. |
sundar@1213 | 38 | |
sundar@1213 | 39 | // See also https://wiki.openjdk.java.net/display/CodeTools/AsmTools |
sundar@1213 | 40 | |
sundar@1213 | 41 | function usage() { |
sundar@1213 | 42 | print("Usage: jjs -cp <asmtools.jar> jd.js -- <classname> [jdis|jdec]"); |
sundar@1213 | 43 | exit(1); |
sundar@1213 | 44 | } |
sundar@1213 | 45 | |
sundar@1213 | 46 | if (arguments.length == 0) { |
sundar@1213 | 47 | usage(); |
sundar@1213 | 48 | } |
sundar@1213 | 49 | |
sundar@1213 | 50 | // argument handling |
sundar@1213 | 51 | // convert to internal class name |
sundar@1213 | 52 | var className = arguments[0].replaceAll('\\.', '/'); |
sundar@1213 | 53 | var tool; |
sundar@1213 | 54 | if (arguments.length > 1) { |
sundar@1213 | 55 | tool = arguments[1]; |
sundar@1213 | 56 | switch (tool) { |
sundar@1213 | 57 | case 'jdis': |
sundar@1213 | 58 | case 'jdec': |
sundar@1213 | 59 | break; |
sundar@1213 | 60 | default: |
sundar@1213 | 61 | usage(); |
sundar@1213 | 62 | } |
sundar@1213 | 63 | } else { |
sundar@1213 | 64 | tool = "jdis"; // default tool |
sundar@1213 | 65 | } |
sundar@1213 | 66 | |
sundar@1213 | 67 | // Java classes used |
sundar@1213 | 68 | var AsmTools = Java.type("org.openjdk.asmtools.Main"); |
sundar@1213 | 69 | var Files = Java.type("java.nio.file.Files"); |
sundar@1213 | 70 | var StandardCopyOption = Java.type("java.nio.file.StandardCopyOption"); |
sundar@1213 | 71 | |
sundar@1213 | 72 | // retrive input stream for .class bytes |
sundar@1213 | 73 | var cl = AsmTools.class.classLoader; |
sundar@1213 | 74 | var res = cl.getResource(className + ".class"); |
sundar@1213 | 75 | |
sundar@1213 | 76 | if (res) { |
sundar@1213 | 77 | var is = res.openStream(); |
sundar@1213 | 78 | var tmpPath; |
sundar@1213 | 79 | try { |
sundar@1213 | 80 | // copy the content of the .class to a temp file |
sundar@1213 | 81 | tmpPath = Files.createTempFile("asmtools-", ".class"); |
sundar@1213 | 82 | // mark as delete-on-exit |
sundar@1213 | 83 | tmpPath.toFile().deleteOnExit(); |
sundar@1213 | 84 | Files.copy(is, tmpPath, [ StandardCopyOption.REPLACE_EXISTING ]); |
sundar@1213 | 85 | } finally { |
sundar@1213 | 86 | is.close(); |
sundar@1213 | 87 | } |
sundar@1213 | 88 | |
sundar@1213 | 89 | // invoke asmtools Main |
sundar@1213 | 90 | AsmTools.main([ tool, tmpPath.toString() ]); |
sundar@1213 | 91 | } else { |
sundar@1213 | 92 | print("no such class: " + arguments[0]); |
sundar@1213 | 93 | exit(1); |
sundar@1213 | 94 | } |