47 lines
1.5 KiB
Rust
47 lines
1.5 KiB
Rust
// Ensure that crates compiled with different rustc versions cannot
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// be dynamically linked.
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//@ ignore-cross-compile
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//@ only-unix
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use run_make_support::{cmd, diff, dynamic_lib_name, is_darwin, run, run_fail, rustc};
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fn main() {
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let flags = ["-Cprefer-dynamic", "-Csymbol-mangling-version=v0"];
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let nm_flag = if is_darwin() { [].as_slice() } else { ["-D"].as_slice() };
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// a.rs is compiled to a dylib
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rustc().input("a.rs").crate_type("dylib").args(&flags).run();
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// Store symbols
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let symbols_before = cmd("nm").args(nm_flag).arg(dynamic_lib_name("a")).run().stdout_utf8();
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// b.rs is compiled to a binary
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rustc()
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.input("b.rs")
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.extern_("a", dynamic_lib_name("a"))
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.crate_type("bin")
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.arg("-Crpath")
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.args(&flags)
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.run();
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run("b");
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// Now re-compile a.rs with another rustc version
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rustc()
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.env("RUSTC_FORCE_RUSTC_VERSION", "deadfeed")
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.input("a.rs")
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.crate_type("dylib")
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.args(&flags)
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.run();
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// After compiling with a different rustc version, store symbols again.
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let symbols_after = cmd("nm").args(nm_flag).arg(dynamic_lib_name("a")).run().stdout_utf8();
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// As a sanity check, test if the symbols changed:
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// If the symbols are identical, there's been an error.
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diff()
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.expected_text("symbols_before", symbols_before)
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.actual_text("symbols_after", symbols_after)
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.run_fail();
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run_fail("b");
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}
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