rust/tests/run-make/no-alloc-shim/rmake.rs
2024-08-14 10:33:56 -04:00

56 lines
1.9 KiB
Rust

// This test checks the compatibility of the interaction between `--emit obj` and
// `#[global_allocator]`, as it is now possible to invoke the latter without the
// allocator shim since #86844. As this feature is unstable, it should fail if
// --cfg check_feature_gate is passed.
// See https://github.com/rust-lang/rust/pull/86844
//@ ignore-cross-compile
// Reason: the compiled binary is executed
//@ ignore-msvc
//FIXME(Oneirical): Getting this to work on MSVC requires passing libcmt.lib to CC,
// which is not trivial to do.
// Tracking issue: https://github.com/rust-lang/rust/issues/128602
// Discussion: https://github.com/rust-lang/rust/pull/128407#discussion_r1702439172
use run_make_support::{cc, cwd, has_extension, has_prefix, run, rustc, shallow_find_files};
fn main() {
rustc().input("foo.rs").crate_type("bin").emit("obj").panic("abort").run();
let libdir = rustc().print("target-libdir").run().stdout_utf8();
let libdir = libdir.trim();
let alloc_libs = shallow_find_files(&libdir, |path| {
has_prefix(path, "liballoc-") && has_extension(path, "rlib")
});
let core_libs = shallow_find_files(&libdir, |path| {
has_prefix(path, "libcore-") && has_extension(path, "rlib")
});
let compiler_builtins_libs = shallow_find_files(libdir, |path| {
has_prefix(path, "libcompiler_builtins") && has_extension(path, "rlib")
});
cc().input("foo.o")
.out_exe("foo")
.args(&alloc_libs)
.args(&core_libs)
.args(&compiler_builtins_libs)
.run();
run("foo");
// Check that linking without __rust_no_alloc_shim_is_unstable defined fails
rustc()
.input("foo.rs")
.crate_type("bin")
.emit("obj")
.panic("abort")
.cfg("check_feature_gate")
.run();
cc().input("foo.o")
.out_exe("foo")
.args(&alloc_libs)
.args(&core_libs)
.args(&compiler_builtins_libs)
.run_fail();
}