Skip to content

devices: build init binary in Cargo OUT_DIR #586

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
d-e-s-o wants to merge 1 commit into
base: main
Choose a base branch
from
Open

devices: build init binary in Cargo OUT_DIR #586

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 0 additions & 1 deletion .gitignore
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ __pycache__
*.pyc
*~
/libkrun.pc
init/init
init/nitro/init
examples/chroot_vm
examples/launch-tee
Expand Down
11 changes: 9 additions & 2 deletions src/devices/build.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,9 @@ fn build_default_init() -> PathBuf {
let manifest_dir = PathBuf::from(std::env::var_os("CARGO_MANIFEST_DIR").unwrap());
let libkrun_root = manifest_dir.join("../..");
let init_src = libkrun_root.join("init/init.c");
let init_bin = libkrun_root.join("init/init");

let out_dir = PathBuf::from(std::env::var_os("OUT_DIR").unwrap());
let init_bin = out_dir.join("init");

println!("cargo:rerun-if-env-changed=CC_LINUX");
println!("cargo:rerun-if-env-changed=CC");
Expand Down Expand Up @@ -45,7 +47,12 @@ fn build_default_init() -> PathBuf {
fn main() {
let init_binary_path = std::env::var_os("KRUN_INIT_BINARY_PATH")
.map(PathBuf::from)
.unwrap_or_else(build_default_init);
.unwrap_or_else(|| {
let init_path = build_default_init();
// SAFETY: The build script is single threaded.
unsafe { std::env::set_var("KRUN_INIT_BINARY_PATH", &init_path) };
init_path
});
println!(
"cargo:rustc-env=KRUN_INIT_BINARY_PATH={}",
init_binary_path.display()
Expand Down
Loading