test: Enable extern-fn-reachable test #13741
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| #![crate_type = "dylib"] | |||
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I think this file will need a license header (due to tidy)
It didn't work because it tried to call itself but symbols are not exported as default in executables. Note that `fun5` is not internal anymore since it is in library.
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fixed! |
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Ugh. looks like mac32 also doesn't like |
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(also updated |
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It didn't work because it tried to call itself but symbols are not exported as default in executables. Note that `fun5` is not internal anymore since it is in library. Second commit removes/updates some old tests.
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…, r=<try> tests: Port `extern-fn-reachable` to rmake.rs Part of rust-lang#121876. ## Summary This PR ports `tests/run-make/extern-fn-reachable` to use `rmake.rs`. Notable changes: - We now use the `object` crate and look at the exported symbols specifically. - This test's coverage regressed against windows-msvc back in [replace dynamic library module with libloading rust-lang#90716](rust-lang#90716), but since we use `object` now, we're able to claw the test coverage back. - The checks are now stricter: 1. It no longer looks for substring symbol matches in `nm` textual outputs, it inspects the symbol names precisely. 2. We now also explicitly check for the presence of leading underscore in exported symbol names on apple vs non-apple targets. ## History - Test was initially introduced as a run-pass[^run-pass] test as part of [Don't mark reachable extern fns as internal rust-lang#10539](rust-lang#10539). - Test re-introduced as a run-make test in rust-lang#13741. - Later, the test coverage regressed in rust-lang#90716. [^run-pass]: no longer a thing nowadays Supersedes rust-lang#128314. Co-authored with `@lolbinarycat.` r? `@ghost` try-job: x86_64-msvc try-job: i686-msvc try-job: i686-mingw try-job: x86_64-mingw-1 try-job: x86_64-apple-1 try-job: aarch64-apple try-job: test-various
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…, r=<try> tests: Port `extern-fn-reachable` to rmake.rs Part of rust-lang#121876. ## Summary This PR ports `tests/run-make/extern-fn-reachable` to use `rmake.rs`. Notable changes: - We now use the `object` crate and look at the exported symbols specifically. - This test's coverage regressed against windows-msvc back in [replace dynamic library module with libloading rust-lang#90716](rust-lang#90716), but since we use `object` now, we're able to claw the test coverage back. - The checks are now stricter: 1. It no longer looks for substring symbol matches in `nm` textual outputs, it inspects the symbol names precisely. 2. We now also explicitly check for the presence of leading underscore in exported symbol names on apple vs non-apple targets. - Added another case of `#[no_mangle] fn fun6() {}` (note the lack of `pub`) to check that Rust nameres visibility is orthogonal to symbol visiblity in dylib. ## History - Test was initially introduced as a run-pass[^run-pass] test as part of [Don't mark reachable extern fns as internal rust-lang#10539](rust-lang#10539). - Test re-introduced as a run-make test in rust-lang#13741. - Later, the test coverage regressed in rust-lang#90716. [^run-pass]: no longer a thing nowadays Supersedes rust-lang#128314. Co-authored with `@lolbinarycat.` r? `@ghost` try-job: x86_64-msvc try-job: i686-msvc try-job: i686-mingw try-job: x86_64-mingw-1 try-job: x86_64-apple-1 try-job: aarch64-apple try-job: test-various
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It didn't work because it tried to call itself but symbols are not
exported as default in executables.
Note that
fun5is not internal anymore since it is in library.Second commit removes/updates some old tests.