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| author | 2018-07-17 19:14:08 +0200 | |
|---|---|---|
| committer | 2018-07-17 19:14:08 +0200 | |
| commit | a88175ffc95792b88a8724f66db6dda2b8cc32ee (patch) | |
| tree | 65895bbc6cf1766f4ca01e1257619ab1993e71dc /src/main/java/cuchaz/enigma/bytecode/MethodParametersAttribute.java | |
| parent | Merge pull request #3 from thiakil/src-jar (diff) | |
| download | enigma-fork-a88175ffc95792b88a8724f66db6dda2b8cc32ee.tar.gz enigma-fork-a88175ffc95792b88a8724f66db6dda2b8cc32ee.tar.xz enigma-fork-a88175ffc95792b88a8724f66db6dda2b8cc32ee.zip | |
ASM Based Class Translator (#1)
* Initial port to ASM
* Package updates
* Annotation + inner class translation
* Fix inner class mapping
* More bytecode translation
* Signature refactoring
* Fix highlighting of mapped names
* Fix parameter name offset
* Fix anonymous class generation
* Fix issues with inner class signature transformation
* Fix bridged method detection
* Fix compile issues
* Resolve all failed tests
* Apply deobfuscated name to transformed classes
* Fix class signatures not being translated
* Fix frame array type translation
* Fix frame array type translation
* Fix array translation in method calls
* Fix method reference and bridge detection
* Fix handling of null deobf mappings
* Parameter translation in interfaces
* Fix enum parameter index offset
* Fix parsed local variable indexing
* Fix stackoverflow on rebuilding method names
* Ignore invalid decompiled variable indices
* basic source jar
* Output directly to file on source export
* Make decompile parallel
* fix incorrect super calls
* Use previous save state to delete old mapping files
* Fix old mappings not properly being removed
* Fix old mappings not properly being removed
* make isMethodProvider public
(cherry picked from commit ebad6a9)
* speed up Deobfuscator's getSources by using a single TranslatingTypeloader and caching the ClassLoaderTypeloader
* ignore .idea project folders
* move SynchronizedTypeLoader to a non-inner
* fix signature remap of inners for now
* index & resolve method/field references for usages view
* Allow reader/writer subclasses to provide the underlying file operations
* fix giving obf classes a name not removing them from the panel
* buffer the ParsedJar class entry inputstream, allow use with a jarinputstream
* make CachingClasspathTypeLoader public
* make CachingClasspathTypeLoader public
* support enum switches with obfuscated SwitchMaps
Diffstat (limited to 'src/main/java/cuchaz/enigma/bytecode/MethodParametersAttribute.java')
| -rw-r--r-- | src/main/java/cuchaz/enigma/bytecode/MethodParametersAttribute.java | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/src/main/java/cuchaz/enigma/bytecode/MethodParametersAttribute.java b/src/main/java/cuchaz/enigma/bytecode/MethodParametersAttribute.java deleted file mode 100644 index 57d60fd..0000000 --- a/src/main/java/cuchaz/enigma/bytecode/MethodParametersAttribute.java +++ /dev/null | |||
| @@ -1,85 +0,0 @@ | |||
| 1 | /******************************************************************************* | ||
| 2 | * Copyright (c) 2015 Jeff Martin. | ||
| 3 | * All rights reserved. This program and the accompanying materials | ||
| 4 | * are made available under the terms of the GNU Lesser General Public | ||
| 5 | * License v3.0 which accompanies this distribution, and is available at | ||
| 6 | * http://www.gnu.org/licenses/lgpl.html | ||
| 7 | * <p> | ||
| 8 | * Contributors: | ||
| 9 | * Jeff Martin - initial API and implementation | ||
| 10 | ******************************************************************************/ | ||
| 11 | |||
| 12 | package cuchaz.enigma.bytecode; | ||
| 13 | |||
| 14 | import javassist.bytecode.AttributeInfo; | ||
| 15 | import javassist.bytecode.ConstPool; | ||
| 16 | import javassist.bytecode.MethodInfo; | ||
| 17 | |||
| 18 | import java.io.ByteArrayOutputStream; | ||
| 19 | import java.io.DataOutputStream; | ||
| 20 | import java.io.IOException; | ||
| 21 | import java.util.ArrayList; | ||
| 22 | import java.util.List; | ||
| 23 | |||
| 24 | public class MethodParametersAttribute extends AttributeInfo { | ||
| 25 | |||
| 26 | private MethodParametersAttribute(ConstPool pool, List<Integer> parameterNameIndices) { | ||
| 27 | super(pool, "MethodParameters", writeStruct(parameterNameIndices)); | ||
| 28 | } | ||
| 29 | |||
| 30 | public static void updateClass(MethodInfo info, List<String> names) { | ||
| 31 | |||
| 32 | // add the names to the class const pool | ||
| 33 | ConstPool constPool = info.getConstPool(); | ||
| 34 | List<Integer> parameterNameIndices = new ArrayList<>(); | ||
| 35 | for (String name : names) { | ||
| 36 | if (name != null) { | ||
| 37 | parameterNameIndices.add(constPool.addUtf8Info(name)); | ||
| 38 | } | ||
| 39 | } | ||
| 40 | |||
| 41 | // add the attribute to the method | ||
| 42 | info.addAttribute(new MethodParametersAttribute(constPool, parameterNameIndices)); | ||
| 43 | } | ||
| 44 | |||
| 45 | private static byte[] writeStruct(List<Integer> parameterNameIndices) { | ||
| 46 | // JVM 8 Spec says the struct looks like this: | ||
| 47 | // http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.24 | ||
| 48 | // uint8 num_params | ||
| 49 | // for each param: | ||
| 50 | // uint16 name_index -> points to UTF8 entry in constant pool, or 0 for no entry | ||
| 51 | // uint16 access_flags -> don't care, just set to 0 | ||
| 52 | |||
| 53 | ByteArrayOutputStream buf = new ByteArrayOutputStream(); | ||
| 54 | DataOutputStream out = new DataOutputStream(buf); | ||
| 55 | |||
| 56 | // NOTE: java hates unsigned integers, so we have to be careful here | ||
| 57 | // the writeShort(), writeByte() methods will read 16,8 low-order bits from the int argument | ||
| 58 | // as long as the int argument is in range of the unsigned short/byte type, it will be written as an unsigned short/byte | ||
| 59 | // if the int is out of range, the byte stream won't look the way we want and weird things will happen | ||
| 60 | final int SIZEOF_UINT8 = 1; | ||
| 61 | final int SIZEOF_UINT16 = 2; | ||
| 62 | final int MAX_UINT8 = (1 << 8) - 1; | ||
| 63 | final int MAX_UINT16 = (1 << 16) - 1; | ||
| 64 | |||
| 65 | try { | ||
| 66 | assert (parameterNameIndices.size() >= 0 && parameterNameIndices.size() <= MAX_UINT8); | ||
| 67 | out.writeByte(parameterNameIndices.size()); | ||
| 68 | |||
| 69 | for (Integer index : parameterNameIndices) { | ||
| 70 | assert (index >= 0 && index <= MAX_UINT16); | ||
| 71 | out.writeShort(index); | ||
| 72 | |||
| 73 | // just write 0 for the access flags | ||
| 74 | out.writeShort(0); | ||
| 75 | } | ||
| 76 | |||
| 77 | out.close(); | ||
| 78 | byte[] data = buf.toByteArray(); | ||
| 79 | assert (data.length == SIZEOF_UINT8 + parameterNameIndices.size() * (SIZEOF_UINT16 + SIZEOF_UINT16)); | ||
| 80 | return data; | ||
| 81 | } catch (IOException ex) { | ||
| 82 | throw new Error(ex); | ||
| 83 | } | ||
| 84 | } | ||
| 85 | } | ||