java调用栈中行号

Posted 2022-01-24 lin-0410

java stacktrace line numer
java调用栈中行号：
行号表：https://book.51cto.com/art/201701/528010.htm

行号获取：https://docs.oracle.com/javase/10/docs/api/java/lang/StackTraceElement.html#getLineNumber()

行号是负数的情况：
https://stackoverflow.com/questions/49070987/why-some-stack-trace-have-negative-line-number

A value of -2 indicates that the method containing the execution point is a native method

-1 means that the line number information is not available, for some reason. As you already noticed this is usually a case for classes from libs.

附录：
Adb root ;adb remount; adb shell debuggerd64/32 -b pid //保存所有线程（包括native线程）堆栈
Adb shell kill -3 pid // 保存java线程堆栈，就是执行了ANR

Thread.getAllStackTraces();