tree 51d5d59c387834ccc49bcd631b07883aa2c89501
parent 6c6981e85c8b71353857cfc81c7c1443319b0dec
author David Spickett <david.spickett@linaro.org> 1657542396 +0100
committer Copybara-Service <copybara-worker@google.com> 1658760991 -0700

[lldb][AArch64] Add UnpackTagsFromCoreFileSegment to MemoryTagManager

This is the first part of support for reading MTE tags from Linux
core files. The format is documented here:
https://www.kernel.org/doc/html/latest/arm64/memory-tagging-extension.html#core-dump-support

This patch adds a method to unpack from the format the core
file uses, which is different to the one chosen for GDB packets.

MemoryTagManagerAArch64MTE is not tied one OS so another OS
might choose a different format in future. However, infrastructure
to handle that would go untested until then so I've chosen not to
attempt to handle that.

Reviewed By: omjavaid

Differential Revision: https://reviews.llvm.org/D129487

GitOrigin-RevId: 883b0d5b7f873a7d6f8c8ee13c7f6174a2a79a50