btf2wit

Conversion from BTF to WIT.

Usage: btf2wit [OPTIONS] <INPUT_FILE>

Arguments:
  <INPUT_FILE>  

Options:
  -o, --output-file <OUT_FILE>  
  -h, --help                    Print help
  -V, --version                 Print version

Extract BTF info from DWARF

• Install pahole

sudo apt install pahole

• Use clang or gcc to compile program with -g argument

clang simple.c -c -o simple.bpf.o -g

• Use pahole to emit BTF info from DWARF and store it in the origin ELF file

pahole -J simple.bpf.o

Use btf2wit to emit WIT info from BTF

btf2wit simple.bpf.o -o simple.wit

Use wit-bindgen to emit bindings for C and Rust

wit-bindgen c simple.wit
wit-bindgen rust simple.wit

For examples, please refer to examples/simple.

License

MIT