for Linux Kernel Debugging Feng Li (李枫) hkli2013@126.com Oct 19，2019 PyCon China Hangzhou 2019 Agenda I. Linux Kernel Overview V. Practice on ARM  Development Environment  My Practice VI. Wrap-up I. Linux Kernel Debugging 1) Overview DTrace  https://en.wikipedia.org/wiki/DTrace a comprehensive oracle.com/en/operating-systems/oracle-linux/ dtrace-guide/ …  http://www.brendangregg.com/dtrace.html Linux Tracing Landscape  a

Installer files . . . . . . . . . . . . . . . . . . . . . . . . . . . 1335 35.2 msvcrt —Useful routines from the MS VC++ runtime . . . . . . . . . . . . . . . . . . . . . . . . . 1341 35.3 _winreg —Windows 的 Python 中可用；另一些模块仅在 底层系统支持或要求时可用；还有些模块则仅当编译和安装 Python 时选择了特定配置选项时才可用。 This manual is organized “from the inside out:”it first describes the built-in data types, then the built-in functions and exceptions The ordering of the chapters as well as the ordering of the modules within each chapter is roughly from most relevant to least important. 这意味着如果你从头开始阅读本手册，并在感到厌烦时跳到下一章，你仍能对 Python 库的可用模块和所支 持的应用领域有个大致了解。当然，你并非

Installer files . . . . . . . . . . . . . . . . . . . . . . . . . . . 1335 35.2 msvcrt —Useful routines from the MS VC++ runtime . . . . . . . . . . . . . . . . . . . . . . . . . 1341 35.3 _winreg —Windows 的 Python 中可用；另一些模块仅在 底层系统支持或要求时可用；还有些模块则仅当编译和安装 Python 时选择了特定配置选项时才可用。 This manual is organized “from the inside out:”it first describes the built-in data types, then the built-in functions and exceptions The ordering of the chapters as well as the ordering of the modules within each chapter is roughly from most relevant to least important. 这意味着如果你从头开始阅读本手册，并在感到厌烦时跳到下一章，你仍能对 Python 库的可用模块和所支 持的应用领域有个大致了解。当然，你并非

Installer files . . . . . . . . . . . . . . . . . . . . . . . . . . . 1335 35.2 msvcrt —Useful routines from the MS VC++ runtime . . . . . . . . . . . . . . . . . . . . . . . . . 1341 35.3 _winreg —Windows 的 Python 中可用；另一些模块仅在 底层系统支持或要求时可用；还有些模块则仅当编译和安装 Python 时选择了特定配置选项时才可用。 This manual is organized “from the inside out:”it first describes the built-in data types, then the built-in functions and exceptions The ordering of the chapters as well as the ordering of the modules within each chapter is roughly from most relevant to least important. 这意味着如果你从头开始阅读本手册，并在感到厌烦时跳到下一章，你仍能对 Python 库的可用模块和所支 持的应用领域有个大致了解。当然，你并非

. . . . . . . . . . . . . . . . . . . . . . . 147 5.7 Building the C++, Python and C# MuPDF APIs from source . . . . . . . . . . . . . . . . . . . . . . 151 5.8 Windows-specifics . . . . . . . . . . the Github repository here: MuPDF on Github. • Or check out the latest development source directly from our canonical git repository: git clone --recursive git://git.ghostscript.com/mupdf.git. Note: If required DLLs, load platform/win32/mupdf.sln into Visual Studio, and select the required architecture from the drop down - then right click on libmupdf in the solution explorer and choose “Build”. 1.2.2 macOS

. . . . . . . . . . . . . . . . . . . . . . . 207 7.7 Building the C++, Python and C# MuPDF APIs from source . . . . . . . . . . . . . . . . . . . . . . 213 7.8 Windows-specifics . . . . . . . . . . E-book viewer. It is available under either the GNU GPL Affero license or licensed for commercial use from Artifex Software, Inc. MuPDF consists of a software library, command line tools, and viewers for the Github repository here: MuPDF on Github. • Or check out the latest development source directly from our canonical git repository: git clone --recursive git://git.ghostscript.com/mupdf.git. Note: If

. . . . . . . . . . . . . . . . . . . . . . . 208 7.7 Building the C++, Python and C# MuPDF APIs from source . . . . . . . . . . . . . . . . . . . . . . 213 7.8 Windows-specifics . . . . . . . . . . E-book viewer. It is available under either the GNU GPL Affero license or licensed for commercial use from Artifex Software, Inc. MuPDF consists of a software library, command line tools, and viewers for the Github repository here: MuPDF on Github. • Or check out the latest development source directly from our canonical git repository: git clone --recursive git://git.ghostscript.com/mupdf.git. Note: If

. . . . . . . . . . . . . . . . . . . . . . . 221 8.7 Building the C++, Python and C# MuPDF APIs from source . . . . . . . . . . . . . . . . . . . . . . 223 8.8 Windows-specifics . . . . . . . . . . E-book viewer. It is available under either the GNU GPL Affero license or licensed for commercial use from Artifex Software, Inc. MuPDF consists of a software library, command line tools, and viewers for the Github repository here: MuPDF on Github. • Or check out the latest development source directly from our canonical git repository: git clone --recursive git://git.ghostscript.com/mupdf.git. Note: If

................................................................................. 60 Inheriting From built-in types .................................................................................. reusability Procedural vs. Object Oriented Programming Procedural based programming is derived from structural programming based on the concepts of functions/procedure/routines. It is easy to access and objects. For instance, a ‘fruit’ is a generalization of ‘orange’. Inheritance is very useful from a code reuse perspective. Abstraction This property allows us to hide the details and expose only

Write your view Complex PDFs Other formats Overriding templates Overriding from the project’s templates directory Overriding from an app’s template directory Managing static files (e.g. images, JavaScript standard names? does – why doesn’t Django? Why did you write all of Django from scratch, instead of using other Python libraries? Is Django a content-management-system (CMS)? How can commands Commands provided by applications Default options Extra niceties Running management commands from your code Output redirection Django Exceptions Django Core Exceptions URL Resolver exceptions Database