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LLVM 8.0 #56831

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baerbock opened this issue Dec 14, 2018 · 6 comments
Closed

LLVM 8.0 #56831

baerbock opened this issue Dec 14, 2018 · 6 comments
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A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

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@baerbock
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Is there already a LLVM 8 tracking issue? Like #50543

Currently Rust doesn't like that
error: couldn't load codegen backend "/usr/lib64/rustlib/x86_64-unknown-linux-gnu/codegen-backends/librustc_codegen_llvm-llvm.so": "libLLVM-7.so: cannot open shared object file: No such file or directory"
@mqudsi
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mqudsi commented Dec 15, 2018

You're misunderstanding the error. #50543 was about upgrading rust internally to use llvm 8, for various reasons. The rust you're using was built against llvm7, and you don't have it installed.

@baerbock
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@mqudsi Do I need Rust to compile Rust?

@mqudsi
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mqudsi commented Dec 15, 2018

Yes. Another option: https://www.gnu.org/software/guix/blog/2018/bootstrapping-rust/

@Centril Centril added A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) labels Dec 15, 2018
@memoryruins
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memoryruins commented Dec 15, 2018 •
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Which OS and rustc version?

cc #56849 another issue in the last 24 hours with loading codegen backend, except that fails while looking for /lib64/libgcc_s.so.1. Does it error when running rustc -vV as well?

@nikic
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nikic commented Jan 30, 2019

Can this issue be closed? It's not really clear to me what this is about at this point.

@memoryruins
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Currently there is not much information to go on, so it deems safe to close. If you continue to run into any issues, baerbock, feel free to let us know!

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A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
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