[RFC,V2 0/5] Add support for MTE stack tagging

[Richard Sandiford]

Jan Beulich <jbeulich@suse.com> writes:
> On 11.04.2025 06:16, Indu Bhagat wrote:
>> Hello,
>> 
>> Not much has moved from the version of the patches first posted earlier
>> in December 2024 (link
>> https://inbox.sourceware.org/binutils/20241205225837.2912674-1-indu.bhagat@oracle.com/).
>> So this is mostly a rebased version of V1 with some nits fixed.
>> 
>> The commit log of each commit has some of unresolved questions listed.
>> Most of the questions are around the implementation of the two dynamic
>> tags (related to MTE stack tagging).  The patchset addresses
>> three different aspects (i.e., .cfi_mte_tagged_frame CFI directive,
>> DT_AARCH64_MEMTAG_MODE and DT_AARCH64_MEMTAG_STACK) related to MTE stack
>> tagging.
>> 
>> Thanks,
>> 
>> Indu Bhagat (5):
>>   binutils: make read_cie aware of new augmentation char 'G'
>
> So where's this 'G' documented? Something must have been added somewhere,
> if so far the character wasn't recognized?

It's documented in:

  https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst

Thanks,
Richard