On Fri, Oct 14, 2022 at 04:17:18PM +0530, Viresh Kumar wrote:
This adds libgpiod-sys rust crate, which provides FFI (foreign function interface) bindings for libgpiod APIs.
For the whole series:
Mail subject should start with [libgpiod v2]
Commits should begin with "bindings: rust: ", rather than "libgpiod:" as the latter is self-evident.
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org
.gitignore | 5 ++++ bindings/rust/Cargo.toml | 5 ++++ bindings/rust/libgpiod-sys/Cargo.toml | 15 ++++++++++ bindings/rust/libgpiod-sys/build.rs | 41 +++++++++++++++++++++++++++ bindings/rust/libgpiod-sys/src/lib.rs | 13 +++++++++ 5 files changed, 79 insertions(+) create mode 100644 bindings/rust/Cargo.toml create mode 100644 bindings/rust/libgpiod-sys/Cargo.toml create mode 100644 bindings/rust/libgpiod-sys/build.rs create mode 100644 bindings/rust/libgpiod-sys/src/lib.rs
diff --git a/.gitignore b/.gitignore index 6c08415b390d..9f2fcf440c5d 100644 --- a/.gitignore +++ b/.gitignore @@ -35,3 +35,8 @@ stamp-h1 # profiling *.gcda *.gcno
+# Added by cargo
+target +Cargo.lock diff --git a/bindings/rust/Cargo.toml b/bindings/rust/Cargo.toml new file mode 100644 index 000000000000..d0b3a3c88ff1 --- /dev/null +++ b/bindings/rust/Cargo.toml @@ -0,0 +1,5 @@ +[workspace]
+members = [
- "libgpiod-sys",
+] diff --git a/bindings/rust/libgpiod-sys/Cargo.toml b/bindings/rust/libgpiod-sys/Cargo.toml new file mode 100644 index 000000000000..77f82719d269 --- /dev/null +++ b/bindings/rust/libgpiod-sys/Cargo.toml @@ -0,0 +1,15 @@ +[package] +name = "libgpiod-sys" +version = "0.1.0" +edition = "2018"
Add license and other relevant keys as per the link you helpfully include...
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[dependencies]
+[features] +generate = [ "bindgen" ]
+[build-dependencies] +bindgen = { version = "0.59.1", optional = true } +cc = "1.0.46" diff --git a/bindings/rust/libgpiod-sys/build.rs b/bindings/rust/libgpiod-sys/build.rs new file mode 100644 index 000000000000..98863686c7af --- /dev/null +++ b/bindings/rust/libgpiod-sys/build.rs @@ -0,0 +1,41 @@ +#[cfg(feature = "generate")] +extern crate bindgen; +#[cfg(feature = "generate")] +use std::env; +#[cfg(feature = "generate")] +use std::path::PathBuf;
+#[cfg(feature = "generate")] +fn generate_bindings() {
- // Tell cargo to invalidate the built crate whenever following files change
- println!("cargo:rerun-if-changed=../../../include/gpiod.h");
- // The bindgen::Builder is the main entry point
- // to bindgen, and lets you build up options for
- // the resulting bindings.
- let bindings = bindgen::Builder::default()
// The input header we would like to generate// bindings for..header("../../../include/gpiod.h")// Tell cargo to invalidate the built crate whenever any of the// included header files changed..parse_callbacks(Box::new(bindgen::CargoCallbacks))// Finish the builder and generate the bindings..generate()// Unwrap the Result and panic on failure..expect("Unable to generate bindings");- // Write the bindings to the $OUT_DIR/bindings.rs file.
- let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
- bindings
.write_to_file(out_path.join("bindings.rs")).expect("Couldn't write bindings!");+}
+fn main() {
- #[cfg(feature = "generate")]
- generate_bindings();
- println!("cargo:rustc-link-search=./../../lib/.libs/");
- println!("cargo:rustc-link-lib=static=gpiod");
+} diff --git a/bindings/rust/libgpiod-sys/src/lib.rs b/bindings/rust/libgpiod-sys/src/lib.rs new file mode 100644 index 000000000000..1ca355b5f5ac --- /dev/null +++ b/bindings/rust/libgpiod-sys/src/lib.rs @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0
GPL-2.0?
Elsewhere you use Apache 2.0 AND BSD-3-Clause for rust code.
Cheers, Kent.
+#[allow(non_camel_case_types, non_upper_case_globals)] +#[cfg_attr(test, allow(deref_nullptr, non_snake_case))]
+mod bindings_raw {
- #[cfg(feature = "generate")]
- include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
- #[cfg(not(feature = "generate"))]
- include!("bindings.rs");
+}
+pub use bindings_raw::*;
2.31.1.272.g89b43f80a514