Questionable optimization for riscv cpu_fetch_syscall_args()
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Authored by trasz on Nov 7 2020, 6:16 PM.

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jhb

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riscv

Summary

XXX: stashed for later

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Repository

rS FreeBSD src repository - subversion

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Lint Passed

Unit

No Test Coverage

Build Status

Buildable 34686
Build 31753: arc lint + arc unit

Event Timeline

trasz created this revision.Nov 7 2020, 6:16 PM

Herald added a subscriber: imp. · View Herald TranscriptNov 7 2020, 6:16 PM

trasz requested review of this revision.Nov 7 2020, 6:16 PM

Harbormaster completed remote builds in B34685: Diff 79304.Nov 7 2020, 6:17 PM

trasz planned changes to this revision.Nov 7 2020, 6:17 PM

meh

Harbormaster completed remote builds in B34686: Diff 79305.Nov 7 2020, 6:17 PM

Rework.

Harbormaster completed remote builds in B34696: Diff 79329.Nov 8 2020, 6:29 PM

trasz planned changes to this revision.Nov 8 2020, 6:31 PM

linimon added a reviewer: riscv.Jun 11 2021, 1:50 PM

jhb added a subscriber: jhb.Jun 11 2021, 11:19 PM

jhb added inline comments.

sys/riscv/riscv/trap.c
118–124	Why add this check for nosys? Checking sa_code should be sufficient?
120	This is now missing validation of sa->code and also doesn't update callp. Presumably this has broken any uses of syscall(2)?

trasz abandoned this revision.Mar 22 2024, 9:31 AM

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sys/

riscv/

trap.c

15 lines

Diff 79305

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Questionable optimization for riscv cpu_fetch_syscall_args()AbandonedPublicActions