Android: show call stack

http://developer.android.com/intl/zh-TW/reference/java/lang/Thread.html
http://www.androidjavadoc.com/1.1_r1_src/java/lang/Thread.html


Just call Thread.dumpStack();

import java.lang.Thread if needed.

In C++ level,
frameworks/base/libs/utils/CallStack.cpp

CallStack stack;
stack.update(2);
stack.dump();

[Note] kill -3 pid, can dump stack too