Download a more recent LLVM version if src/version is modified
#83350
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When bumping the bootstrap version, the name of the generated LLVM
shared object file is changed, even though it's the same contents as
before. If bootstrap tries to use an older version, it will get linking
errors:
```
Building rustdoc for stage1 (x86_64-unknown-linux-gnu)
Compiling rustdoc-tool v0.0.0 (/home/joshua/rustc/src/tools/rustdoc)
error: linking with `cc` failed: exit code: 1
|
= note: "cc" "-Wl,--as-needed" ... lots of args ...
= note: /usr/bin/ld: cannot find -lLLVM-12-rust-1.53.0-nightly
clang: error: linker command failed with exit code 1 (use -v to see invocation)
error: could not compile `rustdoc-tool`
```
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(rust-highfive has picked a reviewer for you, use r? to override) |
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Another alternative is to remove the version name from the .so file, which means the file can be cached longer, but that seems riskier for not much benefit. |
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@bors r+ |
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📌 Commit 4002171 has been approved by |
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Download a more recent LLVM version if `src/version` is modified
When bumping the bootstrap version, the name of the generated LLVM
shared object file is changed, even though it's the same contents as
before. If bootstrap tries to use an older version, it will get linking
errors:
```
Building rustdoc for stage1 (x86_64-unknown-linux-gnu)
Compiling rustdoc-tool v0.0.0 (/home/joshua/rustc/src/tools/rustdoc)
error: linking with `cc` failed: exit code: 1
|
= note: "cc" "-Wl,--as-needed" ... lots of args ...
= note: /usr/bin/ld: cannot find -lLLVM-12-rust-1.53.0-nightly
clang: error: linker command failed with exit code 1 (use -v to see invocation)
error: could not compile `rustdoc-tool`
```
Helps with rust-lang#81930.
bors
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that referenced
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Mar 22, 2021
Rollup of 9 pull requests Successful merges: - rust-lang#80193 (stabilize `feature(osstring_ascii)`) - rust-lang#80771 (Make NonNull::as_ref (and friends) return refs with unbound lifetimes) - rust-lang#81607 (Implement TrustedLen and TrustedRandomAccess for Range<integer>, array::IntoIter, VecDequeue's iterators) - rust-lang#82554 (Fix invalid slice access in String::retain) - rust-lang#82686 (Move `std::sys::unix::platform` to `std::sys::unix::ext`) - rust-lang#82771 (slice: Stabilize IterMut::as_slice.) - rust-lang#83329 (Cleanup LLVM debuginfo module docs) - rust-lang#83336 (Fix ICE with `use clippy::a::b;`) - rust-lang#83350 (Download a more recent LLVM version if `src/version` is modified) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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When bumping the bootstrap version, the name of the generated LLVM
shared object file is changed, even though it's the same contents as
before. If bootstrap tries to use an older version, it will get linking
errors:
Helps with #81930.