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Differential D32315

Teach the readelf about arm64 gnu properties
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Authored by andrew on Oct 5 2021, 12:57 PM.
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emaste
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rG3a98aae1e5a6: Teach the readelf about arm64 gnu properties
rGaacbf3fb8482: Teach the readelf about arm64 gnu properties
Summary

On arm64 binaries can be tagged as using BTI or PAC. Add support to
decode these to the elftoolchain readelf.

To simplify the code use a table based method to find the flag
description table.

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rG FreeBSD src repository
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Event Timeline

andrew created this revision.Oct 5 2021, 12:57 PM
Herald added a subscriber: imp. · View Herald TranscriptOct 5 2021, 12:57 PM
andrew requested review of this revision.Oct 5 2021, 12:57 PM
Harbormaster completed remote builds in B41963: Diff 96266.Oct 5 2021, 12:57 PM
emaste added inline comments.Oct 5 2021, 1:04 PM
contrib/elftoolchain/readelf/readelf.c
3550

PAV?

3633

We probably need to handle the NULL case?

andrew updated this revision to Diff 96348.Oct 6 2021, 3:58 PM

Fix the spelling of PAC

Harbormaster completed remote builds in B41985: Diff 96348.Oct 6 2021, 3:58 PM
andrew added inline comments.Oct 6 2021, 4:34 PM
contrib/elftoolchain/readelf/readelf.c
3633

The NULL case here is the same as the missing default case in the old version.

emaste accepted this revision.Oct 6 2021, 4:50 PM
emaste added inline comments.
contrib/elftoolchain/readelf/readelf.c
3633

Ok, fair point. We ought to add it, I don't care if it's a later commit (or if I have to do it)

This revision is now accepted and ready to land.Oct 6 2021, 4:50 PM
Closed by commit rGaacbf3fb8482: Teach the readelf about arm64 gnu properties (authored by andrew). · Explain WhyOct 11 2021, 10:44 AM
This revision was automatically updated to reflect the committed changes.
andrew added a commit: rGaacbf3fb8482: Teach the readelf about arm64 gnu properties.
andrew added a commit: rG3a98aae1e5a6: Teach the readelf about arm64 gnu properties.Oct 25 2021, 1:55 PM

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contrib/
elftoolchain/
readelf/
69 lines

Diff 96661

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contrib/elftoolchain/readelf/readelf.c

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