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(parent: 208b9ea) | patch
Simplify non-pti syscall entry on amd64.
authorKonstantin Belousov <kib@FreeBSD.org>
Sun, 19 Jul 2020 17:47:55 +0000 (17:47 +0000)
committerKonstantin Belousov <kib@FreeBSD.org>
Sun, 19 Jul 2020 17:47:55 +0000 (17:47 +0000)
commit0675f4e1ca75adb8c00df6bb961d4b3a950c1531
tree5f2107a7cfc354635c3d507978783867f6262fc4tree | snapshot
parent208b9eabb40e717d76852c2d4a6d51023a2b7630commit | 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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