[NFC][Clang][Docs] Update Pointer Authentication documentation (#152596)

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This updates the pointer authentication documentation to include a
complete description of the existing functionaliy and behaviour, details
of the more complex aspects of the semantics and security properties,
and the Apple arm64e ABI design.

Co-authored-by: Ahmed Bougacha
Co-authored-by: Akira Hatanaka
Co-authored-by: John Mccall

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Co-authored-by: Ahmed Bougacha <ahmed@bougacha.org>
Co-authored-by: Akira Hatanaka <ahatanak@gmail.com>
Co-authored-by: John Mccall <rjmccall@apple.com>
(cherry picked from commit 62d2a8e6823de0310ba3a8b014ddcb2db356a1bb)

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Oliver Hunt 2025-08-18 17:27:36 -07:00 committed by Tobias Hieta

parent 7d6969bc6f

commit 27fc211bf0

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1 changed files with 1162 additions and 31 deletions

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clang/docs/PointerAuthentication.rst

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