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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'>Hi, all<o:p></o:p></span></i></p><pre><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'>I'm considering Soot to develop some dataflow analysis in java class files.</span></i><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#222222;background:white'> I have a parent class<span class=apple-converted-space> </span></span></i><code><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'>class A</span></i></code><span class=apple-converted-space><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#222222;background:white'> </span></i></span><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#222222;background:white'>and a child class<span class=apple-converted-space> </span></span></i><code><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'>class B extends A</span></i></code><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> ,<o:p></o:p></span></i></pre><p class=MsoNormal align=left style='text-align:left'><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'>My question is that I cannot find type cast in jimple body. The upcasting stmt a=b ,become r5=r3 (r5,r3 are the same type) , just a AssignStmt.<o:p></o:p></span></i></p><p class=MsoNormal align=left style='text-align:left'><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'>Ihe relationship between r2 and r5 is missing in the jimple file. How can I get the relationship between r2 and r5 ( such as castexptr).<o:p></o:p></span></i></p><pre><i><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'>My example :<o:p></o:p></span></i></pre><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>public</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> </span><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>class</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> Ctest{</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> </span><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>public</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> </span><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>static</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> </span><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>void</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> main(String [] </span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#6A3E3E'>args</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'>){</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> A </span><u><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#6A3E3E'>a</span></u><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> = </span><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>new</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> A();</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> B </span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#6A3E3E'>b</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> = </span><b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#7F0055'>new</span></b><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> B();</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> </span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#6A3E3E;background:yellow;mso-highlight:yellow'>a</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black;background:yellow;mso-highlight:yellow'>=</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:#6A3E3E;background:yellow;mso-highlight:yellow'>b</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black;background:yellow;mso-highlight:yellow'>;</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'> }</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:21.0pt;mso-para-margin-left:2.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'>}</span><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p></o:p></span></p><pre><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif;color:black'>The Jimple body :<o:p></o:p></span></pre><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> public static void main(java.lang.String[])<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> {<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> java.lang.String[] r0;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> A $r1, r2;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> B r3, $r4, r5;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> r0 := @parameter0: java.lang.String[];<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> $r1 = new A;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> <u><span style='color:black'>specialinvoke</span></u> $r1.< A: void <u><span style='color:black'><init></span></u>()>();<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> r2 = $r1;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> $r4 = new B;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> <u><span style='color:black'>specialinvoke</span></u> $r4.< B: void <u><span style='color:black'><init></span></u>()>();<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> r3 = $r4;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> <span style='background:yellow;mso-highlight:yellow'>r5 = r3;</span><o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-autospace:none'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> return;<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-left:10.5pt;mso-para-margin-left:1.0gd;text-align:left;text-indent:14.0pt'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'> }<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri Light",sans-serif'>~Lulu<i><span style='color:black'><o:p></o:p></span></i></span></p></div></body></html>