1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/foreign/foreign-fn-linkname.rs b/src/test/ui/foreign/foreign-fn-linkname.rs
new file mode 100644
index 000000000..f6d820594
--- /dev/null
+++ b/src/test/ui/foreign/foreign-fn-linkname.rs
@@ -0,0 +1,28 @@
+// run-pass
+// ignore-wasm32-bare no libc to test ffi with
+// ignore-sgx no libc
+
+#![feature(rustc_private)]
+
+extern crate libc;
+use std::ffi::CString;
+
+mod mlibc {
+    use libc::{c_char, size_t};
+
+    extern "C" {
+        #[link_name = "strlen"]
+        pub fn my_strlen(str: *const c_char) -> size_t;
+    }
+}
+
+fn strlen(str: String) -> usize {
+    // C string is terminated with a zero
+    let s = CString::new(str).unwrap();
+    unsafe { mlibc::my_strlen(s.as_ptr()) as usize }
+}
+
+pub fn main() {
+    let len = strlen("Rust".to_string());
+    assert_eq!(len, 4);
+}