Add test case for symbol visibility in dylibs.

src/test/run-make/symbol-visibility/Makefile

@@ -0,0 +1,26 @@
+include ../tools.mk
+
+all:
+	$(RUSTC) an_rlib.rs
+	$(RUSTC) a_cdylib.rs
+	$(RUSTC) a_rust_dylib.rs
+	$(RUSTC) an_executable.rs
+
+	# Check that a cdylib exports its public #[no_mangle] functions
+	[ "$$(nm -D $(TMPDIR)/liba_cdylib.so | grep -c public_c_function_from_cdylib)" -eq "1" ]
+	# Check that a cdylib exports the public #[no_mangle] functions of dependencies
+	[ "$$(nm -D $(TMPDIR)/liba_cdylib.so | grep -c public_c_function_from_rlib)" -eq "1" ]
+	# Check that a cdylib DOES NOT export any public Rust functions
+	[ "$$(nm -D $(TMPDIR)/liba_cdylib.so | grep -c _ZN.*h.*E)" -eq "0" ]
+
+	# Check that a Rust dylib exports its monomorphic functions
+	[ "$$(nm -D $(TMPDIR)/liba_rust_dylib.so | grep -c public_c_function_from_rust_dylib)" -eq "1" ]
+	[ "$$(nm -D $(TMPDIR)/liba_rust_dylib.so | grep -c _ZN.*public_rust_function_from_rust_dylib.*E)" -eq "1" ]
+
+	# Check that a Rust dylib exports the monomorphic functions from its dependencies
+	[ "$$(nm -D $(TMPDIR)/liba_rust_dylib.so | grep -c public_c_function_from_rlib)" -eq "1" ]
+	[ "$$(nm -D $(TMPDIR)/liba_rust_dylib.so | grep -c public_rust_function_from_rlib)" -eq "1" ]
+
+	# Check that an executable does not export any dynamic symbols
+	[ "$$(nm -D $(TMPDIR)/an_executable | grep -c public_c_function_from_rlib)" -eq "0" ]
+	[ "$$(nm -D $(TMPDIR)/an_executable | grep -c public_rust_function_from_exe)" -eq "0" ]

src/test/run-make/symbol-visibility/a_cdylib.rs

@@ -0,0 +1,22 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type="cdylib"]
+
+extern crate an_rlib;
+
+// This should not be exported
+pub fn public_rust_function_from_cdylib() {}
+
+// This should be exported
+#[no_mangle]
+pub extern "C" fn public_c_function_from_cdylib() {
+    an_rlib::public_c_function_from_rlib();
+}

src/test/run-make/symbol-visibility/a_rust_dylib.rs

@@ -0,0 +1,20 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type="dylib"]
+
+extern crate an_rlib;
+
+// This should be exported
+pub fn public_rust_function_from_rust_dylib() {}
+
+// This should be exported
+#[no_mangle]
+pub extern "C" fn public_c_function_from_rust_dylib() {}

src/test/run-make/symbol-visibility/an_executable.rs

@@ -0,0 +1,17 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type="bin"]
+
+extern crate an_rlib;
+
+pub fn public_rust_function_from_exe() {}
+
+fn main() {}

src/test/run-make/symbol-visibility/an_rlib.rs

@@ -0,0 +1,16 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type="rlib"]
+
+pub fn public_rust_function_from_rlib() {}
+
+#[no_mangle]
+pub extern "C" fn public_c_function_from_rlib() {}