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diff --git a/third_party/java/proguard/proguard5.3.3/docs/manual/retrace/examples.html b/third_party/java/proguard/proguard5.3.3/docs/manual/retrace/examples.html new file mode 100644 index 0000000000..ec2a99bbc3 --- /dev/null +++ b/third_party/java/proguard/proguard5.3.3/docs/manual/retrace/examples.html @@ -0,0 +1,182 @@ +<!doctype html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> +<meta http-equiv="content-style-type" content="text/css"> +<link rel="stylesheet" type="text/css" href="../style.css"> +<title>ReTrace Examples</title> +</head> +<body> + +<script type="text/javascript" language="JavaScript"> +<!-- +if (window.self==window.top) + document.write('<a class="largebutton" target="_top" href="../../index.html#manual/retrace/examples.html">ProGuard index</a> <a class="largebutton" target="_top" href="http://www.guardsquare.com/dexguard">DexGuard</a> <a class="largebutton" target="_top" href="http://www.guardsquare.com/">GuardSquare</a> <a class="largebutton" target="other" href="http://sourceforge.net/projects/proguard/">Sourceforge</a>') +//--> +</script> +<noscript> +<a class="largebutton" target="_top" href="../../index.html#manual/retrace/examples.html">ProGuard index</a> +<a class="largebutton" target="_top" href="http://www.guardsquare.com/dexguard">DexGuard</a> +<a class="largebutton" target="_top" href="http://www.guardsquare.com/">GuardSquare</a> +<a class="largebutton" target="other" href="http://sourceforge.net/projects/proguard/">Sourceforge</a> +</noscript> + +<h2>Examples</h2> + +Some typical example uses: +<ol> +<li><a href="#with">Restoring a stack trace with line numbers</a></li> +<li><a href="#withverbose">Restoring a stack trace with line numbers + (verbose)</a></li> +<li><a href="#without">Restoring a stack trace without line numbers</a></li> +</ol> + +<h3><a name="with">Restoring a stack trace with line numbers</a></h3> + +Assume for instance ProGuard itself has been obfuscated using the following +extra options: +<pre> +-printmapping mapping.txt + +-renamesourcefileattribute MyApplication +-keepattributes SourceFile,LineNumberTable +</pre> +<p> + +Now assume the processed application throws an exception: +<pre> +java.io.IOException: Can't read [dummy.jar] (No such file or directory) + at proguard.y.a(MyApplication:188) + at proguard.y.a(MyApplication:158) + at proguard.y.a(MyApplication:136) + at proguard.y.a(MyApplication:66) + at proguard.ProGuard.c(MyApplication:218) + at proguard.ProGuard.a(MyApplication:82) + at proguard.ProGuard.main(MyApplication:538) +Caused by: java.io.IOException: No such file or directory + at proguard.d.q.a(MyApplication:50) + at proguard.y.a(MyApplication:184) + ... 6 more +</pre> +<p> + +If we have saved the stack trace in a file <code>stacktrace.txt</code>, we can +use the following command to recover the stack trace: +<pre> +<b>java -jar retrace.jar mapping.txt stacktrace.txt</b> +</pre> +<p> + +The output will correspond to the original stack trace: +<pre> +java.io.IOException: Can't read [dummy.jar] (No such file or directory) + at proguard.InputReader.readInput(InputReader.java:188) + at proguard.InputReader.readInput(InputReader.java:158) + at proguard.InputReader.readInput(InputReader.java:136) + at proguard.InputReader.execute(InputReader.java:66) + at proguard.ProGuard.readInput(ProGuard.java:218) + at proguard.ProGuard.execute(ProGuard.java:82) + at proguard.ProGuard.main(ProGuard.java:538) +Caused by: java.io.IOException: No such file or directory + at proguard.io.DirectoryPump.pumpDataEntries(DirectoryPump.java:50) + at proguard.InputReader.readInput(InputReader.java:184) + ... 6 more +</pre> + +<h3><a name="withverbose">Restoring a stack trace with line numbers (verbose)</a></h3> + +In the previous example, we could also use the verbose flag: +<pre> +<b>java -jar retrace.jar -verbose mapping.txt stacktrace.txt</b> +</pre> +<p> + +The output will then look as follows: +<pre> +java.io.IOException: Can't read [dummy.jar] (No such file or directory) + at proguard.InputReader.void readInput(java.lang.String,proguard.ClassPathEntry,proguard.io.DataEntryReader)(InputReader.java:188) + at proguard.InputReader.void readInput(java.lang.String,proguard.ClassPath,int,int,proguard.io.DataEntryReader)(InputReader.java:158) + at proguard.InputReader.void readInput(java.lang.String,proguard.ClassPath,proguard.io.DataEntryReader)(InputReader.java:136) + at proguard.InputReader.void execute(proguard.classfile.ClassPool,proguard.classfile.ClassPool)(InputReader.java:66) + at proguard.ProGuard.void readInput()(ProGuard.java:218) + at proguard.ProGuard.void execute()(ProGuard.java:82) + at proguard.ProGuard.void main(java.lang.String[])(ProGuard.java:538) +Caused by: java.io.IOException: No such file or directory + at proguard.io.DirectoryPump.void pumpDataEntries(proguard.io.DataEntryReader)(DirectoryPump.java:50) + at proguard.InputReader.void readInput(java.lang.String,proguard.ClassPathEntry,proguard.io.DataEntryReader)(InputReader.java:184) + ... 6 more +</pre> + + +<h3><a name="without">Restoring a stack trace without line numbers</a></h3> + +Assume for instance ProGuard itself has been obfuscated using the following +extra options, this time without preserving the line number tables: +<pre> +-printmapping mapping.txt +</pre> +<p> + +A stack trace <code>stacktrace.txt</code> will then lack line number +information, showing "Unknown source" instead: +<pre> +java.io.IOException: Can't read [dummy.jar] (No such file or directory) + at proguard.y.a(Unknown Source) + at proguard.y.a(Unknown Source) + at proguard.y.a(Unknown Source) + at proguard.y.a(Unknown Source) + at proguard.ProGuard.c(Unknown Source) + at proguard.ProGuard.a(Unknown Source) + at proguard.ProGuard.main(Unknown Source) +Caused by: java.io.IOException: No such file or directory + at proguard.d.q.a(Unknown Source) + ... 7 more +</pre> +<p> + +We can still use the same command to recover the stack trace: +<pre> +<b>java -jar retrace.jar mapping.txt stacktrace.txt</b> +</pre> +<p> + +The output will now list all alternative original method names for each +ambiguous obfuscated method name: +<pre> +java.io.IOException: Can't read [dummy.jar] (No such file or directory) + at proguard.InputReader.execute(InputReader.java) + readInput(InputReader.java) + at proguard.InputReader.execute(InputReader.java) + readInput(InputReader.java) + at proguard.InputReader.execute(InputReader.java) + readInput(InputReader.java) + at proguard.InputReader.execute(InputReader.java) + readInput(InputReader.java) + at proguard.ProGuard.readInput(ProGuard.java) + at proguard.ProGuard.execute(ProGuard.java) + optimize(ProGuard.java) + createPrintStream(ProGuard.java) + closePrintStream(ProGuard.java) + fileName(ProGuard.java) + at proguard.ProGuard.main(ProGuard.java) +Caused by: java.io.IOException: No such file or directory + at proguard.io.DirectoryPump.pumpDataEntries(DirectoryPump.java) + readFiles(DirectoryPump.java) +</pre> +<p> + +For instance, ReTrace can't tell if the method <code>a</code> corresponds +to <code>execute</code> or to <code>readInput</code>, so it lists both. You +need to figure it out based on your knowledge of the application. Having line +numbers and unambiguous names clearly is a lot easier, so you should consider +<a href="../examples.html#stacktrace">preserving the line numbers</a> when you +obfuscate your application. + +<hr /> +<address> +Copyright © 2002-2017 +<a target="other" href="http://www.lafortune.eu/">Eric Lafortune</a> @ <a target="top" href="http://www.guardsquare.com/">GuardSquare</a>. +</address> +</body> +</html> + |