Merge pull request #4 from AzureMarker/master

Add init method to force linking, and other changes

Cargo.toml

@@ -5,10 +5,5 @@ version = "0.1.0"
 license = "MIT/Apache 2.0"
 edition = "2018"
 
-[lib]
+[dependencies]
-name = "linker_fix_3ds"
+libc = { git = "https://github.com/Meziu/libc.git" }
-path = "src/lib.rs"
-crate-type = ["staticlib", "lib"]
-
-[dependencies.libc]
-git = "https://github.com/Meziu/libc.git"

src/lib.rs

@@ -1,19 +1,30 @@
+#![no_std]
+
 extern crate libc;
 
+/// Call this somewhere to force Rust to link this module.
+/// The call doesn't need to execute, just exist.
+///
+/// See https://github.com/rust-lang/rust/issues/47384
+pub fn init() {}
+
 #[no_mangle]
-extern "C" fn posix_memalign(memptr: *mut *mut libc::c_void, align: libc::size_t, size: libc::size_t) -> libc::c_int {
+extern "C" fn posix_memalign(
+    memptr: *mut *mut libc::c_void,
+    align: libc::size_t,
+    size: libc::size_t,
+) -> libc::c_int {
     unsafe {
         *memptr = libc::memalign(align, size);
     }
-    
+
     0
 }
 
-
 #[no_mangle]
 unsafe extern "C" fn realpath(
-    path: *const libc::c_char, 
+    path: *const libc::c_char,
-    resolved_path: *mut libc::c_char
+    resolved_path: *mut libc::c_char,
 ) -> *mut libc::c_char {
     libc::memcpy(resolved_path as _, path as _, libc::strlen(path));