Create unique timestamps for darwin target in deterministic mode #38

moosichu commented 2021年11月19日 08:30:05 +01:00 (Migrated from github.com)

github.com/llvm-mirror/llvm@2c4ca6832f/lib/Object/ArchiveWriter.cpp (L389)

I came across this when researching how llvm ar did something else.

Specifically:

in deterministic archive mode (which
is the default), on Darwin we will emit a unique non-zero
timestamp for each entry with a duplicated name. This is still
deterministic: the only thing affecting that timestamp is the
order of the files in the resultant archive.

See implementation for details.

https://github.com/llvm-mirror/llvm/blob/2c4ca6832fa6b306ee6a7010bfb80a3f2596f824/lib/Object/ArchiveWriter.cpp#L389 I came across this when researching how llvm ar did something else. Specifically: > in deterministic archive mode (which > is the default), on Darwin we will emit a unique non-zero > timestamp for each entry with a duplicated name. This is still > deterministic: the only thing affecting that timestamp is the > order of the files in the resultant archive. See implementation for details.