Support static inline functions in ctru-sys

ctru-sys/bindgen-ctru-sys/Cargo.toml

@@ -4,5 +4,5 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-bindgen = "0.65.1"
+bindgen = { version = "0.65.1", features = ["experimental"] }
 doxygen-rs = "0.4.2"

ctru-sys/bindgen-ctru-sys/src/main.rs

@@ -37,6 +37,7 @@ fn main() {
         .blocklist_type("__va_list")
         .opaque_type("MiiData")
         .derive_default(true)
+        .wrap_static_fns(true)
         .clang_args([
             "--target=arm-none-eabi",
             "--sysroot",

ctru-sys/bindgen.sh

@@ -26,4 +26,13 @@ cargo run --package bindgen-ctru-sys > src/bindings.rs
 echo "Formatting generated files..."
 cargo fmt --all
 
+echo "Compiling static inline wrappers..."
+arm-none-eabi-gcc -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft \
+    -I${DEVKITPRO}/libctru/include \
+    -I${DEVKITPRO}/libctru/include/3ds \
+    -O -c -o extern.o /tmp/bindgen/extern.c
+arm-none-eabi-ar -rcs libextern.a extern.o
+rm extern.o
+
+
 echo "Generated bindings for ctru-sys version \"${CTRU_SYS_VERSION}.x+${LIBCTRU_VERSION}\""

ctru-sys/build.rs

@@ -5,7 +5,9 @@ use std::process::{Command, Output, Stdio};
 fn main() {
     let dkp_path = env::var("DEVKITPRO").unwrap();
     let profile = env::var("PROFILE").unwrap();
+    let pwd = env::var("CARGO_MANIFEST_DIR").unwrap();
 
+    // Link to libctru
     println!("cargo:rerun-if-changed=build.rs");
     println!("cargo:rerun-if-env-changed=DEVKITPRO");
     println!("cargo:rustc-link-search=native={dkp_path}/libctru/lib");
@@ -17,6 +19,10 @@ fn main() {
         }
     );
 
+    // Link to static inline fns wrapper
+    println!("cargo:rustc-link-search=native={}", pwd);
+    println!("cargo:rustc-link-lib=static=extern");
+
     match check_libctru_version() {
         Ok((maj, min, patch)) => {
             eprintln!("using libctru version {maj}.{min}.{patch}");
@@ -77,8 +83,9 @@ fn check_libctru_version() -> Result<(String, String, String), Box<dyn Error>> {
         .output()?;
 
     for line in String::from_utf8_lossy(&stdout).split('\n') {
-        let Some((_pkg, file)) = line.split_once(char::is_whitespace)
-        else { continue };
+        let Some((_pkg, file)) = line.split_once(char::is_whitespace) else {
+            continue;
+        };
 
         println!("cargo:rerun-if-changed={file}");
     }