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(parent: 81a3f4a) | patch
Simplify non-pti syscall entry on amd64.
authorkib <kib@FreeBSD.org>
Sun, 19 Jul 2020 17:47:55 +0000 (17:47 +0000)
committerkib <kib@FreeBSD.org>
Sun, 19 Jul 2020 17:47:55 +0000 (17:47 +0000)
commit79684cc1618dd3dd0e0c29c264e5f99e0252c907
tree5f2107a7cfc354635c3d507978783867f6262fc4tree | snapshot
parent81a3f4a9349c5552638bc1fd62c974a9d56ab516commit | diff
Simplify non-pti syscall entry on amd64.

Limit manipulations to use %rax as scratch to the pti portion of the
syscall entry code.

Submitted by: alc
Reviewed by: markj
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D25722
sys/amd64/amd64/exception.S diff | blob | history
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