Generate Hypervisor framework bindings

Signed-off-by: Maksym Pavlenko <pavlenko.maksym@gmail.com>

Author: mxpv

Cargo.toml

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+[workspace]
+members = [
+    "hv-sys"
+]

hv-sys/Cargo.toml

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+[package]
+name = "hv-sys"
+version = "0.1.0"
+edition = "2018"
+description = "Low level Rust binding for Hypervisor Framework generated with bindgen"
+
+[dependencies]
+
+[build-dependencies]
+bindgen = "0.58"

hv-sys/build.rs

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+use std::env;
+use std::path::PathBuf;
+use std::process::Command;
+
+fn main() {
+    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
+
+    bindgen::builder()
+        .header("wrapper.h")
+        .clang_arg(format!("-F{}/System/Library/Frameworks", show_sdk_path())) // -F<directory> Add framework to the search path
+        .allowlist_function("hv_.*")
+        .generate()
+        .expect("Failed to generate bindings")
+        .write_to_file(out_path.join("bindings.rs"))
+        .expect("Failed to write bindings file");
+}
+
+/// Execute `xcrun --sdk macosx --show-sdk-path` to locate MacOS SDK
+fn show_sdk_path() -> String {
+    let output = Command::new("xcrun")
+        .arg("--sdk")
+        .arg("macosx")
+        .arg("--show-sdk-path")
+        .output()
+        .expect("Failed to execute xcrun");
+
+    if !output.stderr.is_empty() {
+        panic!("ERROR: {}", String::from_utf8(output.stderr).unwrap());
+    }
+
+    let mut path = output.stdout;
+
+    // Remove new line character ('\n' == 0x0A == 10)
+    if path.ends_with(&[10]) {
+        path.swap_remove(path.len() - 1);
+    }
+
+    String::from_utf8(path).unwrap()
+}

hv-sys/src/lib.rs

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+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+
+include!(concat!(env!("OUT_DIR"), "/bindings.rs"));

hv-sys/wrapper.h

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+#include "Hypervisor/hv.h"
+#include "Hypervisor/hv_vmx.h"