[5.5][clang][Driver] Make multiarch output file basenames reproducible#3483
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When building a multiarch MachO binary, previously the intermediate output file names would contain random characters. On macOS this filename, since it's used when linking, ended up being used as a stable-ish identifier for the adhoc codesignature of the binary, leading to non-reproducible binaries. This change uses the architecture, when available, to create a stable, but unique, basename for the file. Differential Revision: https://reviews.llvm.org/D111269 This fixes FB9727658 (although the linker should still probably be updated to fix other related use cases) (cherry picked from commit 17386cb)
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@fredriss since you're mentioned as the release manager |
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This definitely missed the train, this fix is included in 5.6 which shipped with Xcode 13.3 |
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When building a multiarch MachO binary, previously the intermediate
output file names would contain random characters. On macOS this
filename, since it's used when linking, ended up being used as a
stable-ish identifier for the adhoc codesignature of the binary, leading
to non-reproducible binaries. This change uses the architecture, when
available, to create a stable, but unique, basename for the file.
Differential Revision: https://reviews.llvm.org/D111269
This fixes FB9727658 (although the linker should still probably be
updated to fix other related use cases)
(cherry picked from commit 17386cb)