tree b6066e57735231c516ead1dfd01a90a32eb3d3f4
parent 200eb00d06b51648cb5b13bd58665aa4f57ba231
author Jez Ng <jezng@fb.com> 1618606005 -0400
committer Copybara-Service <copybara-worker@google.com> 1618719900 -0700

[lld-macho] Initial groundwork for -bitcode_bundle

This diff creates an empty XAR file and copies it into
`__LLVM,__bundle`. Follow-up work will actually populate the contents of
that XAR.

Reviewed By: #lld-macho, gkm

Differential Revision: https://reviews.llvm.org/D100650

GitOrigin-RevId: ca6751043d8899b12baeb48621e61fb352cfee09