From: Viresh Kumar <viresh.kumar@linaro.org>
To: Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@bgdev.pl>
Cc: "Viresh Kumar" <viresh.kumar@linaro.org>,
"Vincent Guittot" <vincent.guittot@linaro.org>,
linux-gpio@vger.kernel.org, "Kent Gibson" <warthog618@gmail.com>,
"Miguel Ojeda" <miguel.ojeda.sandonis@gmail.com>,
"Wedson Almeida Filho" <wedsonaf@google.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
stratos-dev@op-lists.linaro.org,
"Gerard Ryan" <g.m0n3y.2503@gmail.com>
Subject: [PATCH V7 1/8] libgpiod: Add libgpiod-sys rust crate
Date: Fri, 14 Oct 2022 16:17:18 +0530 [thread overview]
Message-ID: <c8ef89c343a0c31e4132cc6757fdff8dec0d1669.1665744170.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1665744170.git.viresh.kumar@linaro.org>
This adds libgpiod-sys rust crate, which provides FFI (foreign function
interface) bindings for libgpiod APIs.
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"
+
+# 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
+
+#[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
next prev parent reply other threads:[~2022-10-14 10:47 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-14 10:47 [PATCH V7 0/8] libgpiod: Add Rust bindings Viresh Kumar
2022-10-14 10:47 ` Viresh Kumar [this message]
2022-10-17 12:59 ` [PATCH V7 1/8] libgpiod: Add libgpiod-sys rust crate Kent Gibson
2022-10-18 11:22 ` Viresh Kumar
2022-10-18 11:42 ` Miguel Ojeda
2022-10-18 11:49 ` Kent Gibson
2022-10-19 6:46 ` Viresh Kumar
2022-10-19 7:21 ` Kent Gibson
2022-10-19 11:22 ` Viresh Kumar
2022-10-19 12:01 ` Kent Gibson
2022-10-20 5:34 ` Viresh Kumar
2022-10-27 12:18 ` Bartosz Golaszewski
2022-10-14 10:47 ` [PATCH V7 2/8] libgpiod-sys: Add pre generated rust bindings Viresh Kumar
2022-10-14 10:47 ` [PATCH V7 3/8] libgpiod: Add rust wrapper crate Viresh Kumar
2022-10-17 12:59 ` Kent Gibson
2022-10-21 11:22 ` Viresh Kumar
2022-10-21 12:39 ` Kent Gibson
2022-10-27 12:09 ` Bartosz Golaszewski
2022-10-31 12:33 ` Kent Gibson
2022-10-31 12:45 ` Bartosz Golaszewski
2022-11-02 4:00 ` Viresh Kumar
2022-11-02 12:47 ` Bartosz Golaszewski
2022-11-02 13:08 ` Kent Gibson
2022-11-02 16:34 ` Bartosz Golaszewski
2022-11-03 0:38 ` Kent Gibson
2022-11-03 8:35 ` Bartosz Golaszewski
2022-11-03 12:29 ` Kent Gibson
2022-11-04 15:51 ` Bartosz Golaszewski
2022-10-18 3:27 ` Kent Gibson
2022-10-21 11:25 ` Viresh Kumar
2022-10-14 10:47 ` [PATCH V7 4/8] libgpiod: Add rust examples Viresh Kumar
2022-10-17 13:00 ` Kent Gibson
2022-10-14 10:47 ` [PATCH V7 5/8] libgpiod: Add gpiosim rust crate Viresh Kumar
2022-10-17 13:00 ` Kent Gibson
2022-10-21 9:56 ` Viresh Kumar
2022-10-14 10:47 ` [PATCH V7 6/8] gpiosim: Add pre generated rust bindings Viresh Kumar
2022-10-14 10:47 ` [PATCH V7 7/8] libgpiod: Add rust tests Viresh Kumar
2022-10-17 13:00 ` Kent Gibson
2022-10-17 14:30 ` Kent Gibson
2022-10-20 10:37 ` Viresh Kumar
2022-10-20 11:02 ` Kent Gibson
2022-10-20 12:40 ` Bartosz Golaszewski
2022-10-20 15:16 ` Miguel Ojeda
2022-10-14 10:47 ` [PATCH V7 8/8] libgpiod: Integrate building of rust bindings with make Viresh Kumar
2022-10-14 17:03 ` [PATCH V7 0/8] libgpiod: Add Rust bindings Miguel Ojeda
2022-10-20 13:29 ` Björn Roy Baron
2022-10-21 9:39 ` Viresh Kumar
2022-10-21 14:34 ` Björn Roy Baron
2022-10-25 6:42 ` Viresh Kumar
2022-10-29 17:46 ` Björn Roy Baron
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