Skip assembly implementations on the UEFI targets #504
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The UEFI targets link with `/SAFESEH`. That requires that objects have a symbol called [`@feat.00`]. Clang adds that symbol for COFF targets if the input is a C file, but not if the input is an ASM file. That doesn't prevent compiler_builtins or rustc from building, but using the resulting rustc to compile something that references one of the objects lacking `@feat.00` will result in a linker error. Fix by removing all the `.S` implementations when `target_os == uefi`. [`@feat.00`]: https://learn.microsoft.com/en-us/windows/win32/debug/pe-format#the-sxdata-section
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Sounds good! I hope this can be reverted once rust-lang/cc-rs#751 is resolved. |
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The UEFI targets link with
/SAFESEH. That requires that objects have a symbol called@feat.00. Clang adds that symbol for COFF targets if the input is a C file, but not if the input is an ASM file. That doesn't prevent compiler_builtins or rustc from building, but using the resulting rustc to compile something that references one of the objects lacking@feat.00will result in a linker error.Fix by removing all the
.Simplementations whentarget_os == uefi.This is a partial fix for rust-lang/rust#104326