panhongwei / tracereader Goto Github PK

android小工具，通过读取trace文件，回溯整个整个程序执行调用树。

Java 100.00%

tracereader's Introduction

TraceReader

1.简述

Android 调试工具ddms的devices栏目存在一个功能叫做start method profiling，此按钮顾名思义是启动method profiling的，而Android的Method Profiling功能，是可以在一段时间内记录所有运行过的函数，最后生成一个xxx.trace文件。xxx.trace文件比较有趣，如果分析andorid源码可以知道，xxx.trace文件按线程和时间记录了method的enter和exit事件。也就是说，如果我们能够读取xxx.trace文件，那么我们就能够获取到某段时间，某个app运行过的java函数。

2.功能

于是乎，便有个这个工具，目前更新到TraceReader v1.1，实现了如下功能：
1）支持拖拽解析xx.trace。

2）支持显示线程。

3）支持树形显示方法调用

4）支持按列显示运行方法

5）支持搜索

6）支持复制、重命名


7）支持显示调用时间

3.用法

解析trace文件，用法如下：

  byte[] bytes=BytesHelper.toByteArray(fl.getPath());
  Trace trace=new Trace(bytes);		 
  trace.getThreadList();

3.原理

TODO….

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tracereader's Issues

解析文件出错 java.lang.NumberFormatException: For input string: "882d5af0"

解析文件出错

java.lang.NumberFormatException: For input string: "882d5af0"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:583)
at com.panda.trace.Trace.readFileFormat(Trace.java:156)
at com.panda.trace.Trace.divideBytes(Trace.java:180)
at com.panda.trace.Trace.(Trace.java:49)
at com.panda.ui.TraceFrame$2.actionPerformed(TraceFrame.java:188)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)