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arm64: add definition for IS_SSTEP_TRAP()
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Authored by mhorne on Feb 26 2021, 5:42 PM.

Details

Summary

arm64 has a distinct exception code for single-step, so we can use this
to detect when an unexpected SS trap is encountered, or when an expected
one is not.

Diff Detail

Repository
R10 FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.