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<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">I have implemented an instrumentation tool based on Soot for Android jar files (of dex format) and the tool works in general.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">However, when the tool processes a Android jar file containing two dex files (one is classes.dex, the other is classes<span style="color:red">2</span>.dex), it only load classes.dex by default.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">When letting Soot use the option “-process-multiple-dex”, the tool will load those two dex files and do instrumentation for all loaded classes, but throw an exception when executing “PackManager.v().writeOutput()”
as follows:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:14.0pt">
</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">Exception in thread "main" org.jf.util.ExceptionWithContext: Exception occurred while writing code_item for method Landroid/Manifest$permission;-><init>()V</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at org.jf.dexlib2.writer.DexWriter.writeDebugAndCodeItems(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">DexWriter.java:824</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at org.jf.dexlib2.writer.DexWriter.writeTo(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">DexWriter.java:267</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at org.jf.dexlib2.writer.DexWriter.writeTo(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">DexWriter.java:245</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at soot.toDex.DexPrinter.writeTo(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">DexPrinter.java:278</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)
------------- Soot throws an Exception.</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at soot.toDex.DexPrinter.printApk(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">DexPrinter.java:206</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at soot.toDex.DexPrinter.print(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">DexPrinter.java:1587</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left;text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at soot.PackManager.writeOutput(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">PackManager.java:549</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red"> at soot.Trace.main(</span><u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:#0066CC">Trace.java:1058</span></u><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">I checked the source code of
</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas;color:red">DexPrinter.writeTo(…)</span><span lang="EN-US" style="font-size:12.0pt;font-family:Consolas">,
</span><span lang="EN-US" style="font-size:14.0pt">and found it wrote all classes loaded from classes.dex and classes2.dex into one dex file, classes.dex.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">It seems that Soot does not support writing loaded classes into multiple dex files.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Can anyone give any help?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Thank you in advance.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">-Leo<o:p></o:p></span></p>
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