Xia_Lazy-优快云博客

原创 gdb

gdbinfo line *0x````` : show the line of addressp : print the value of expression , e.g, p &(((strcut struct_name*)0)->m_a), p &(((struct wpa_supplicant )&(((struct wpa_radio_work)0...

2018-11-15 16:16:00 157

原创 linux static and dynamic library

转自:static libraryhttps://www.geeksforgeeks.org/static-vs-dynamic-libraries/dynamic libraryhttps://www.geeksforgeeks.org/static-vs-dynamic-libraries/https://www.geeksforgeeks.org/working-with-shar...

2018-11-15 15:58:54 551

-Wildcard expansion happens automatically in rules. But wildcard expansion does not normallytake place when a variable is set, or inside the arguments of a function. If you wantto do wildcard expans...

2018-11-12 10:16:47 227

原创 pkms-start-scan and install

start-scan:@startumlparticipant SystemServer as SSparticipant PackageManagerService as PKMSparticipant ParallelPackageParser as P_PPparticipant PackageParser as PP==PKMS START and scan apk==SS...

2018-11-08 16:42:11 464

原创 pms-permission

wifi_enable_permisson_sequence@startumlparticipant WifiManager as wmparticipant WifiServiceImpl as wmsparticipant ContextImpl as contextparticipant ActivityManagerService as amsparticipant Activ...

2018-11-08 16:36:52 399

原创 chat-server-client(pc app in java)

server can also play with the android client apkserver: ChatServer.javaimport java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStream;import ja...

2018-11-08 16:28:14 415

原创 chat-client(android apk)

Mainactivity.javapackage com.example.mtk28093.chatclient;import android.os.Handler;import android.os.Looper;import android.os.Message;import android.support.v7.app.AppCompatActivity;import andr...

2018-11-08 16:24:32 466

原创 device tree

文章目录introductionbasic architecturehow to usecoderefintroduction将设备信息统一填在dts文件里，既方便管理，同时如果device有变，只要修改dts文件即可，kernel 不见得需要修改DTB Devicetree blob. Compact binary representation of the devicetreeDTC ...

2018-10-30 17:00:39 245

原创 GIC

Interrupt typesA device that implements this GIC architecture can manage the following types of interrupt:Peripheral interruptThis is an interrupt asserted by a signal to the GIC. The GIC archite...

2018-09-29 16:37:12 332

原创 ftrace中tracepoint和event trace的使用

文章目录例子参考文章例子这篇文章https://www.ibm.com/developerworks/cn/linux/1609_houp_ftrace/index.html 对tracepoint和event trace都说的很清晰了，这里就不做赘述了，主要来看一下kernel里的一个例子。先看一下抓的log和命令命令：分别用3个bat完成enable traceset trac...

2018-09-28 15:52:39 2662

转载使用优快云-markdown编辑器

欢迎使用Markdown编辑器写博客本Markdown编辑器使用StackEdit修改而来，用它写博客，将会带来全新的体验哦：Markdown和扩展Markdown简洁的语法代码块高亮图片链接和图片上传LaTex数学公式UML序列图和流程图离线写博客导入导出Markdown文件丰富的快捷键快捷键加粗 Ctrl + B 斜体 Ctrl + I...

2018-08-12 16:46:21 127

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