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20229200c8
Co-authored-by: Noa <coolreader18@gmail.com> Co-authored-by: Oneirical <manchot@videotron.ca>
48 lines
1.9 KiB
Rust
48 lines
1.9 KiB
Rust
// ignore-tidy-linelength
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//! If the environment variables contain an invalid `jobserver-auth`, this used to cause an ICE
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//! until this was fixed in [do not panic on failure to acquire jobserver token
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//! #109694](https://github.com/rust-lang/rust/pull/109694).
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//!
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//! Proper handling has been added, and this test checks that helpful warnings and errors are
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//! printed instead in case of a wrong jobserver. See
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//! <https://github.com/rust-lang/rust/issues/46981>.
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//@ only-linux
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//@ ignore-cross-compile
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#![deny(warnings)]
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use run_make_support::{diff, rustc};
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fn main() {
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let out = rustc()
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.stdin_buf(("fn main() {}").as_bytes())
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.env("MAKEFLAGS", "--jobserver-auth=1000,1000")
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.run_fail()
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.stderr_utf8();
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diff().expected_file("cannot_open_fd.stderr").actual_text("actual", out).run();
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let out = rustc()
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.stdin_buf(("fn main() {}").as_bytes())
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.input("-")
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.env("MAKEFLAGS", "--jobserver-auth=3,3")
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.set_aux_fd(3, std::fs::File::open("/dev/null").unwrap())
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.run()
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.stderr_utf8();
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diff().expected_file("not_a_pipe.stderr").actual_text("actual", out).run();
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// FIXME(#110321): the Makefile version had a disabled check:
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//
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// ```makefile
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// bash -c 'echo "fn main() {}" | MAKEFLAGS="--jobserver-auth=3,3" $(RUSTC) - 3< <(cat /dev/null)' 2>&1 | diff poisoned_pipe.stderr -
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// ```
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//
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// > the jobserver helper thread launched here gets starved out and doesn't run, while the
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// > coordinator thread continually processes work using the implicit jobserver token, never
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// > yielding long enough for the jobserver helper to do its work (and process the error).
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//
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// but is not necessarily worth fixing as it might require changing coordinator behavior that
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// might regress performance. See discussion at
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// <https://github.com/rust-lang/rust/issues/110321#issuecomment-1636914956>.
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}
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