Android 活页夹跟踪 [英] Android Binder Tracing

问题描述

在Android OS源代码(路径:/drivers/staging/android/binder_trace.h )中，我们有一个名为 binder_trace.h 的文件，也包含在中>/drivers/staging/android/binder.c binder_trace 包括在内.正如我们在 binder_trace.h 文件中看到的那样，使用 TP_printk 指令跟踪了活页夹事务.

In Android OS source code (Path: /drivers/staging/android/binder_trace.h), we have a file named binder_trace.h and also in /drivers/staging/android/binder.c binder_trace is included. As we can see in binder_trace.h file, the binder transactions are traced with TP_printk instruction.

现在我的问题是，如何在带有adb shell的手机中看到这些内核日志?在/sys/kernel/debug/tracing 目录中也没有任何与活页夹跟踪相关的文件！

Now my question is that how I can see these kernel logs in my phone with adb shell? Also there isn't any file related to binder tracing in /sys/kernel/debug/tracing directory!

推荐答案

$ cd /sys/kernel/debug/tracing
$ echo > set_event  # clear all unrelated events
$ echo 1 > events/binder/enable
$ echo 1 > tracing_on

# .. do your test jobs ..

$ cat trace

请参阅 https://android.googlesource.com/kernel/common/+/android-3.10.y/Documentation/trace/ftrace.txt 了解更多详细信息.

refer to https://android.googlesource.com/kernel/common/+/android-3.10.y/Documentation/trace/ftrace.txt for more detail info.

这篇关于Android 活页夹跟踪的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！