[core] arsc decode error

[Ylarod]

INFO  - output directory: framework-res-14
INFO  - loading ...
INFO  - Loaded classes: 0, methods: 0, instructions: 0
ERROR - Failed to parse '.arsc' file
jadx.core.utils.exceptions.JadxException: Error decode: resources.arsc
	at jadx.api.ResourcesLoader.decodeStream(ResourcesLoader.java:78)
	at jadx.core.dex.nodes.RootNode.loadResources(RootNode.java:173)
	at jadx.api.JadxDecompiler.load(JadxDecompiler.java:117)
	at jadx.gui.JadxWrapper.open(JadxWrapper.java:65)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.io.IOException: type chunk, res0, expected: 0x0, actual: 0x1, offset: 0xb0b196
	at jadx.core.xmlgen.ParserStream.throwException(ParserStream.java:118)
	at jadx.core.xmlgen.ParserStream.checkInt8(ParserStream.java:103)
	at jadx.core.xmlgen.ResTableParser.parseTypeChunk(ResTableParser.java:253)
	at jadx.core.xmlgen.ResTableParser.parsePackage(ResTableParser.java:162)
	at jadx.core.xmlgen.ResTableParser.decodeTableChunk(ResTableParser.java:110)
	at jadx.core.xmlgen.ResTableParser.decode(ResTableParser.java:86)
	at jadx.core.xmlgen.ResDecoder.decode(ResDecoder.java:28)
	at jadx.core.dex.nodes.RootNode.lambda$loadResources$7(RootNode.java:173)
	at jadx.api.ResourcesLoader.decodeStream(ResourcesLoader.java:73)
	... 6 common frames omitted

According to aosp13 ResourceTypes.h, these two fields should be flags and reserved instead of res0 and res1

Apk can be found -> framework-res-14.apk

[jpstotz]

@Ylarod Thank you very much for this sample. It contains multiple structures we not yet support in Jadx. I will update our resource parsing code to support it.

[jpstotz]

That sample is indeed interesting. It has the flag set to 1 which means it uses sparse entries which needs a little bit different way of reading.

And afterwards I discovered that it contains a TYPE_STAGED_ALIAS chunk, so the search for a sample file of #1803 is finally over.