tree ef80378c5ee0cf3d272517c904de27c1a32c3acf
parent 19718a977578170d360ec21ff42a29aff22e41e2
author Louis Dionne <ldionne.2@gmail.com> 1712145883 -0400
committer Copybara-Service <copybara-worker@google.com> 1712146262 -0700

[libc++] Upstream ptrauth support in libc++ and libc++abi (#84573)

This is an exact upstreaming of the downstream diff. Minor
simplifications can be made in the future but upstreaming as-is will
make it easier for us to deal with downstream merge conflicts.

Partially fixes #83805

GitOrigin-RevId: 98244c4e2acafb7568e8337088c6caaaffcb7831