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COMPILATION.md

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Compilation Steps

This document describes the local compilation method for kyanos. My environment is Ubuntu 22.04, and other environments may vary.

Tool Version Requirements

  • golang 1.23 or above
  • clang 10.0 or above
  • llvm 10.0 or above

Installation of Compilation Environment Dependencies

Ubuntu

If you are using Ubuntu 20.04 or later, you can initialize the compilation environment with a single command.

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/hengyoush/kyanos/refs/heads/main/init_env.sh)"

Other Linux Distributions

clone the project (don't forget to update submodle!):

git clone https://github.com/hengyoush/kyanos
cd kyanos
git submodule update --init --recursive

In addition to the toolchain versions listed above, the compilation environment also requires the following software. Please install them manually.

  • linux-tools-common
  • linux-tools-generic
  • pkgconf
  • libelf-dev

Compilation Commands

If you are just developing and testing locally, you can execute

make build-bpf && make

the kyanos executable file will be generated in the root directory of the project.

Important

Note that this binary file does not include the BTF files from btfhub-archive. If you run this kyanos on a lower version kernel without BTF support, it may fail to start. You can build a kyanos artifact with embedded BTF files using the following commands:
x86_64:

make build-bpf && make btfgen BUILD_ARCH=x86_64 ARCH_BPF_NAME=x86 && make

arm64:

make build-bpf && make btfgen BUILD_ARCH=arm64 ARCH_BPF_NAME=arm64 && make

Note that make btfgen may take more than 15 minutes.

Tip

If your kernel does not have BTF enabled, you may not be able to start kyanos successfully.

Check if BTF is enabled:

grep CONFIG_DEBUG_INFO_BTF "/boot/config-$(uname -r)"

If the result is CONFIG_DEBUG_INFO_BTF=y, it means BTF is enabled. If not, please download the BTF file corresponding to your kernel version from mirrors.openanolis.cn or btfhub-archive, and use the --btf option to specify the downloaded BTF file when starting kyanos.