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ClaudiuGeorgiu / Obfuscapk

An automatic obfuscation tool for Android apps that works in a black-box fashion, supports advanced obfuscation features and has a modular architecture easily extensible with new techniques
MIT License
1.12k stars 288 forks source link

APK Tool OOM #165

Closed kmbisset89 closed 1 year ago

kmbisset89 commented 1 year ago

I have a rather large APK (450 MB), and I am getting an OOM Exception when using it in a docker container :

Docker Command

winpty docker run -m=20g --rm -it -v "C:\dev\obfuscation":"/workdir" obfuscapk -i -p -d /c/dev/obfuscation/0.8.3-o2.apk -w dir --use-aapt2 -o Rebuild -o NewAlignment -o NewSignature 0.8.3.apk

Error Log

[ERROR][obfuscapk.tool.Apktool][build()] Error during build command: I: Using Apktool 2.7.0 I: Smaling smali folder into classes.dex... Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at java.base/java.lang.StringUTF16.compress(StringUTF16.java:160) at java.base/java.lang.String.(String.java:3214) at java.base/java.lang.String.(String.java:276) at org.jf.smali.smaliFlexLexer.yytext(smaliFlexLexer.java:3528) at org.jf.smali.smaliFlexLexer.yylex(smaliFlexLexer.java:3896) at org.jf.smali.smaliFlexLexer.nextToken(smaliFlexLexer.java:3198) at org.antlr.runtime.BufferedTokenStream.fetch(BufferedTokenStream.java:143) at org.antlr.runtime.BufferedTokenStream.sync(BufferedTokenStream.java:137) at org.antlr.runtime.CommonTokenStream.consume(CommonTokenStream.java:68) at org.antlr.runtime.BaseRecognizer.match(BaseRecognizer.java:106) at org.jf.smali.smaliParser.method_prototype(smaliParser.java:4289) at org.jf.smali.smaliParser.method_reference(smaliParser.java:7922) at org.jf.smali.smaliParser.insn_format35c_method(smaliParser.java:14623) at org.jf.smali.smaliParser.instruction(smaliParser.java:11208) at org.jf.smali.smaliParser.ordered_method_item(smaliParser.java:2195) at org.jf.smali.smaliParser.statements_and_directives(smaliParser.java:1915) at org.jf.smali.smaliParser.method(smaliParser.java:1711) at org.jf.smali.smaliParser.smali_file(smaliParser.java:624) at brut.androlib.mod.SmaliMod.assembleSmaliFile(SmaliMod.java:63) at brut.androlib.src.SmaliBuilder.buildFile(SmaliBuilder.java:71) at brut.androlib.src.SmaliBuilder.build(SmaliBuilder.java:56) at brut.androlib.src.SmaliBuilder.build(SmaliBuilder.java:37) at brut.androlib.Androlib.buildSourcesSmali(Androlib.java:437) at brut.androlib.Androlib.buildSources(Androlib.java:368) at brut.androlib.Androlib.build(Androlib.java:320) at brut.androlib.Androlib.build(Androlib.java:287) at brut.apktool.Main.cmdBuild(Main.java:263) at brut.apktool.Main.main(Main.java:82)

ClaudiuGeorgiu commented 1 year ago

Hi, it looks like apktool doesn't "see" all the available memory. The first thing that comes to my mind is that one could edit the /usr/local/bin/apktool file inside the Docker image and change the line javaOpts="-Xmx512M ... to something like javaOpts="-Xmx4G ... (or more if needed).