[libc-commits] [libc] [libc][cmake] pass -mthumb for thumb triples (PR #96550)

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enh-google wrote:

> Android only cares about building llvm-libc for 32b ARM in thumb
mode

citation needed? i really don't think we do... thumb might well be Android's _global default_ for arm32, but that's (a) not required and (b) not what we actually use for any of the syscall stuff in bionic...

https://github.com/llvm/llvm-project/pull/96550