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add macosx libc as a cross compilation target #2875

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andrewrk opened this issue Jul 12, 2019 · 2 comments
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add macosx libc as a cross compilation target #2875

andrewrk opened this issue Jul 12, 2019 · 2 comments
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contributor friendly This issue is limited in scope and/or knowledge of Zig internals. enhancement Solving this issue will likely involve adding new logic or components to the codebase. os-macos
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0.7.0

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@andrewrk
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Extracted from #514.

We don't need any startup files for this one, but we do need headers.
@andrewrk andrewrk added enhancement Solving this issue will likely involve adding new logic or components to the codebase. contributor friendly This issue is limited in scope and/or knowledge of Zig internals. os-macos labels Jul 12, 2019
@andrewrk andrewrk added this to the 0.6.0 milestone Jul 12, 2019
@andrewrk andrewrk mentioned this issue Jul 12, 2019
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@andrewrk andrewrk modified the milestones: 0.6.0, 0.7.0 Feb 10, 2020
@andrewrk andrewrk modified the milestones: 0.7.0, 0.8.0 Oct 14, 2020
@andrewrk andrewrk modified the milestones: 0.8.0, 0.7.0 Nov 6, 2020
@andrewrk
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andrewrk commented Nov 6, 2020

Done by @kubkon in #6752

@andrewrk andrewrk closed this as completed Nov 6, 2020
@chadbrewbaker
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chadbrewbaker commented Dec 10, 2022 •
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It is still missing compile time specialization, PGO, and BOLT on libc code. Since MacOS can’t agree on a fixed interface, you have an optional check at startup to make sure Apple hasn’t broken the interface, if it did you change the function pointers to hit libsystem instead of compile time specialized code. https://github.com/apple-oss-distributions/Libc

Building libc is nontrivial because Apple doesn’t provide sane makefiles. Here is the PureDarwin makefile on an older version. https://github.com/PureDarwin/PureDarwin/blob/main/src/Libraries/libSystem/libc/CMakeLists.txt Could use some help building it.

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contributor friendly This issue is limited in scope and/or knowledge of Zig internals. enhancement Solving this issue will likely involve adding new logic or components to the codebase. os-macos
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