Backport lldb AArch64 memory tagging commands changes to 13.x branch

[DavidSpickett]

Bugzilla Link	51280
Resolution	FIXED
Resolved on	Oct 11, 2021 20:29
Version	unspecified
OS	Linux
Blocks	#51489
CC	@JDevlieghere,@tstellar
Fixed by commit(s)	98b5659 555cd03 d510b5f 6eded00 6a7a2ee 0b8dc91 c47d79b bc0cc10 dc00e19 45d9885

Extended Description

Currently 13.x has a "memory tag read" command and half the supporting code for "memory tag write". Backporting the following patches would complete the tag write command, and the basic memory tagging feature set for lldb 13.

6a7a2ee https://reviews.llvm.org/D105182 - Memory tag write command
6eded00 https://reviews.llvm.org/D105183 - Memory tag write "--end-addr" option
d510b5f https://reviews.llvm.org/D105178 - Annotate synchronous tag faults
555cd03 https://reviews.llvm.org/D104914 - Correct memtags packets type field format
98b5659 https://reviews.llvm.org/D106880 - Mark mismatched tags in "memory tag read" output

Ok to cherry pick these to the branch?

Also I'd like to add these features to the lldb release notes. Can I do that directly or should I put up a phabricator review for it first?

[tstellar]

Go ahead and cherry-pick these and update the release notes too.

[DavidSpickett]

Cherry picks done and release notes updated, resolving.

[tstellar]

Merged: 45d9885

[tstellar]

mentioned in issue #51489