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Libbpf-bootstrap for android

Using libbpf-bootstrap to develop and cross-compile the ebpf kernel and user program of arm64 platform using wsl2 on x86_64 machine, libbpf-bootstrap can realize the CO-RE of eBPF.

usage

  • Prepare the environment
git clone --recursive https://github.com/revercc/libbpf-bootstrap-for-android.git
cd libbpf-bootstrap-for-android
sudo apt install gcc-aarch64-linux-gnu llvm clang 
wget https://dl.google.com/android/repository/android-ndk-r25c-linux.zip android-ndk-r25c-linux.zip
unzip android-ndk-r25c-linux
  • The ndk is added to the environment variable
vim ~/.bshrc
export PATH=xxxxx/android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/bin:$PATH
  • development

wsl + vscode + clangd

  • build
cd src && make

bcc turns to libbpf's tools

  • build Support for cross-compilation can run on the android platform libbpf-tools
cd libbpf-tools && make

questionable

The executable statically links to the libc.a carried by gcc-aarch64-linux-gnu, which causes some platform-dependent functions in libc.a to not work on android, such as the localtime function in libc