![]() As long as you are not intimated by the kernel sources, rebuilding the tools is actually quite a straightforward process. Getting all the features requires some work. to your corresponding kernel tree folder and start to build the Linux kernel. Getting perf for your favorite distribution is easy. Unzip the Kernel source:: tar -zxvf LinuxBSPKernelSource0.03.tar.gz. Running make again should show you all the features enabled Summary Install everything in a single command sudo apt install libdwarf-dev libdw-dev binutils-dev libcap-dev libelf-dev libnuma-dev libperf-dev python2 python2-dev python-setuptools libssl-dev libunwind-dev libdwarf-dev libunwindw zlib1g-dev liblzma-dev libaio-dev Now uncompress and extract the sources using the command tar xzf linux-X.X.XX.tar.gz where X.X.XX is the version of the kernel you downloaded. I'll go through one-by-one the features and required library to enable the support Feature This is because our minimal environment does not provide most of the libraries required for these features. Notice how we are missing a lot of things. The build configuration will print out the supported features. Now, you can simply run make to build perf make If you have not yet installed basic tools for building C applications, then run the following minimal setup to get the tools to build perf sudo apt install make gcc flex bison Move to the perf tool base directory cd linux-6.0.9/tools/perf Compile perf The next task is to fetch and extract the sources.įetch the sources curl -o Įxtract the sources tar xvf I opted in using the latest kernel version 6.0.9. ![]() Extract the source package and see what is required If you are only after the latest features, then go with the latest version. The safest way is to match the version number to the kernel version of the system under test. Unsurprisingly, it is very well-maintained and does not require any fancy tools to build. of the split will produce two files, namely boot.img-kernel and boot.img-kernel kernel/zImage boot.img-ramdisk ramdisk 6. It is distributed with the kernel so you can get it from. The sourceįirst, we need to get the source code for perf. Luckily, compiling perf from the sources is fairly straightforward.Īll of the examples are run within Ubuntu 22.04 ( ubuntu:22.04) docker image. The only way was to recompile perf from the source. For instance, I needed to use a Python script to analyze the function execution times on a system that did not provide perf with Python support. We need to patch the kernel with the ARM kernel patch. gz file is gunzip This command is basically an alias to file with gzip -d. Another command that you can use to decompress a. Unpack the kernel source code in a temporary directory and change to the unpacked source directory. To keep the compressed file pass the -k option to the command: gzip -dk file.gz. Sometimes you need it with all the bells and whistles on. Linux Kernel header files: To compile gcc we need some header files from the linux kernel source. It comes with basic features enabled, which are perfectly suitable for most scenarios. linux-2.2.13.tar.gz) to your /usr/src directory.to remove the symbolic link named linux.(changing linux-2.2. You can find it easily in the repositories. The perf profile is included in most Linux distributions. 3 min read Photo by Todd Quackenbush / Unsplash.This information is often asked for when looking for support on the forums or IRC channels. Extracting tar.gz File Gzip algorithm is designed to compress only a single file. If the patches have the extentions gz, unpack them with gunzip like this. ![]() Windows users need to install additional software such as 7zip to open. In this chapter we will download the Linux kernel sources, add a few patches. In kernel config aids system administrators with debugging things like if a particular module was compiled when the kernel was built, whether a certain networking option was enabled, or any other configuration value that was set when the kernel was compiled. gz file, right-click on the file you want to decompress and select Extract. This allows inspecting the the configuration of the kernel while it is running, without having to worry whether they changed or cleaned the kernel source directory after it was compiled. Make sure you are in the directory to where you want to unpack the kernel sources, extract them using tar xf /usr/src/linux-source-3.16.tar.xz and change to. config support, also known as IKCONFIG, allows system administrators to build a copy of the configuration the kernel was built with into the kernel itself. 3.1.1 Reading with the kernels helper script.tar.gz/.tgz file try the tar command: tar -xvf. One can unzip and open gz file using: gunzip archive.gz. For remote systems use the ssh command for log in purposes. 2.2 Optional: Loading the module on boot The procedure is as follows for Linux, macOS and Unix users: Open the terminal application.
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