// This test exercises the `bundle` link argument, which can be turned on or off. // When building a rlib or staticlib, +bundle means that all object files from the native static // library will be added to the rlib or staticlib archive, and then used from it during linking of // the final binary. // When building a rlib -bundle means that the native static library is registered as a dependency // of that rlib "by name", and object files from it are included only during linking of the final // binary, the file search by that name is also performed during final linking. // When building a staticlib -bundle means that the native static library is simply not included // into the archive and some higher level build system will need to add it later during linking of // the final binary. // This modifier has no effect when building other targets like executables or dynamic libraries. // The default for this modifier is +bundle. // See https://github.com/rust-lang/rust/pull/95818 //@ ignore-cross-compile // Reason: cross-compilation fails to export native symbols use run_make_support::{ build_native_static_lib, dynamic_lib_name, is_msvc, llvm_nm, rust_lib_name, rustc, static_lib_name, }; fn main() { build_native_static_lib("native-staticlib"); // Build a staticlib and a rlib, the `native_func` symbol will be bundled into them rustc().input("bundled.rs").crate_type("staticlib").crate_type("rlib").run(); llvm_nm() .input(static_lib_name("bundled")) .run() .assert_stdout_contains_regex("T _*native_func"); llvm_nm() .input(static_lib_name("bundled")) .run() .assert_stdout_contains_regex("U _*native_func"); llvm_nm().input(rust_lib_name("bundled")).run().assert_stdout_contains_regex("T _*native_func"); llvm_nm().input(rust_lib_name("bundled")).run().assert_stdout_contains_regex("U _*native_func"); // Build a staticlib and a rlib, the `native_func` symbol will not be bundled into it build_native_static_lib("native-staticlib"); rustc().input("non-bundled.rs").crate_type("staticlib").crate_type("rlib").run(); llvm_nm() .input(static_lib_name("non_bundled")) .run() .assert_stdout_not_contains_regex("T _*native_func"); llvm_nm() .input(static_lib_name("non_bundled")) .run() .assert_stdout_contains_regex("U _*native_func"); llvm_nm() .input(rust_lib_name("non_bundled")) .run() .assert_stdout_not_contains_regex("T _*native_func"); llvm_nm() .input(rust_lib_name("non_bundled")) .run() .assert_stdout_contains_regex("U _*native_func"); // This part of the test does not function on Windows MSVC - no symbols are printed. if !is_msvc() { // Build a cdylib, `native-staticlib` will not appear on the linker line because it was // bundled previously. The cdylib will contain the `native_func` symbol in the end. rustc() .input("cdylib-bundled.rs") .crate_type("cdylib") .print("link-args") .run() .assert_stdout_not_contains(r#"-l[" ]*native-staticlib"#); llvm_nm() .input(dynamic_lib_name("cdylib_bundled")) .run() .assert_stdout_contains_regex("[Tt] _*native_func"); // Build a cdylib, `native-staticlib` will appear on the linker line because it was not // bundled previously. The cdylib will contain the `native_func` symbol in the end rustc() .input("cdylib-non-bundled.rs") .crate_type("cdylib") .print("link-args") .run() .assert_stdout_contains_regex(r#"-l[" ]*native-staticlib"#); llvm_nm() .input(dynamic_lib_name("cdylib_non_bundled")) .run() .assert_stdout_contains_regex("[Tt] _*native_func"); } }