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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Peter,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>that might have to do with an optimization I added recently. In short, FlowDroid removes these callgraph edges for which it can easily decide that having them does not influence the outcome of the taint analysis. I can however fully understand that this might lead to surprising results if you are using the FlowDroid components for other analyses, so I decided to make this optimization optional and turn it off by default.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The new code is on Github and a new nightly build will be available tomorrow.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Steven<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:13.5pt;font-family:"Courier New";color:black'>M.Sc. M.Sc. Steven Arzt</span><span lang=EN-US style='font-size:11.0pt;font-family:"Helvetica","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>Secure Software Engineering Group (SSE)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>European Center for Security and Privacy by Design (EC SPRIDE) <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Rheinstraße 75<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:black'>D-64293 Darmstadt<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Phone: +49 61 51 869-336<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Fax: +49 61 51 16-72118<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>eMail: </span><span style='font-size:10.0pt;font-family:"Courier New";color:black'><a href="mailto:steven.arzt@ec-spride.de"><span lang=EN-US style='color:blue'>steven.arzt@ec-spride.de</span></a></span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Web: <a href="http://sse.ec-spride.de/"><span style='color:blue'>http://sse.ec-spride.de</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> soot-list-bounces@CS.McGill.CA [mailto:soot-list-bounces@CS.McGill.CA] <b>Im Auftrag von </b>Peter Kim<br><b>Gesendet:</b> Freitag, 6. Februar 2015 00:05<br><b>An:</b> soot-list@cs.mcgill.ca<br><b>Betreff:</b> [Soot-list] Missing call graph edges<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I'm extending FlowDroid to construct an Android app's call graph. More specifically, I get the call graph by modifying Infoflow.runAnalysis(final ISourceSinkManager sourcesSinks, final Set<String> additionalSeeds) to call Scene.v().getCallGraph(). The call graph is missing edges in an odd way - for a function, the graph has some outgoing edges but is missing ones that should be there. Namely, given the following function (shown in Java rather than jimple for readability), the called methods should be "get()", "isFinished()", "remove()", "free()", "size()", "update()", but I'm only getting "get()", "size()", and "remove()". I don't understand why "remove()" is included but "free()" is not since they are in the same basic block. I'm using soot.jimple.toolkits.callgraph.TransitiveTargets to analyze the call graph.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>public void update(float x) {<o:p></o:p></p></div><div><p class=MsoNormal> for (...size()..) {<o:p></o:p></p></div><div><p class=MsoNormal> get();<o:p></o:p></p></div><div><p class=MsoNormal> if (isFinished()) {<o:p></o:p></p></div><div><p class=MsoNormal> remove();<o:p></o:p></p></div><div><p class=MsoNormal> free();<o:p></o:p></p></div><div><p class=MsoNormal> }<o:p></o:p></p></div><div><p class=MsoNormal> }<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> if (y) {<o:p></o:p></p></div><div><p class=MsoNormal> if (x) {<o:p></o:p></p></div><div><p class=MsoNormal> for (... size()...) get().update(x);<o:p></o:p></p></div><div><p class=MsoNormal> } else {<o:p></o:p></p></div><div><p class=MsoNormal> for (...size()...) get().update(x);<o:p></o:p></p></div><div><p class=MsoNormal> }<o:p></o:p></p></div><div><p class=MsoNormal> }<o:p></o:p></p></div><div><p class=MsoNormal>}<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thank you for your help.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>