Files
TripleCross/external/libbpf-bootstrap/examples/rust/tracecon/build.rs
2021-11-20 21:07:23 -05:00

24 lines
935 B
Rust

use std::fs::create_dir_all;
use std::path::Path;
use libbpf_cargo::SkeletonBuilder;
const SRC: &str = "./src/bpf/tracecon.bpf.c";
fn main() {
// It's unfortunate we cannot use `OUT_DIR` to store the generated skeleton.
// Reasons are because the generated skeleton contains compiler attributes
// that cannot be `include!()`ed via macro. And we cannot use the `#[path = "..."]`
// trick either because you cannot yet `concat!(env!("OUT_DIR"), "/skel.rs")` inside
// the path attribute either (see https://github.com/rust-lang/rust/pull/83366).
//
// However, there is hope! When the above feature stabilizes we can clean this
// all up.
create_dir_all("./src/bpf/.output").unwrap();
let skel = Path::new("./src/bpf/.output/tracecon.skel.rs");
SkeletonBuilder::new(SRC)
.generate(&skel)
.expect("bpf compilation failed");
println!("cargo:rerun-if-changed={}", SRC);
}