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| author | bors <bors@rust-lang.org> | 2022-08-29 07:54:06 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2022-08-29 07:54:06 +0000 |
| commit | 7a42ca942cda0d197a63373127e7e373305957a0 (patch) | |
| tree | d3ff0487c13616d512fae7745f3aefdbdc53ccd5 /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp | |
| parent | 94b2b15e63c5d2b2a6a0910e3dae554ce9415bf9 (diff) | |
| parent | bd8b4b9c1588f0c681162ead34cc91b3f9a52bfc (diff) | |
| download | rust-7a42ca942cda0d197a63373127e7e373305957a0.tar.gz rust-7a42ca942cda0d197a63373127e7e373305957a0.zip | |
Auto merge of #100786 - sunshowers:macos-posix-chdir, r=sunshowers
Use posix_spawn for absolute paths on macOS Currently, on macOS, Rust never uses the fast posix_spawn path if a directory change is requested, due to a bug in Apple's libc. However, the bug is only triggered if the program is a relative path. This PR makes it so that the fast path continues to work if the program is an absolute path or a lone filename. This was an alternative proposed in https://github.com/rust-lang/rust/pull/80537#issue-776674009, and it makes a measurable performance difference in some of my code that spawns thousands of processes.
Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp')
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