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Differential D20363

DTrace: fix reading a 64-bits register on amd64
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Authored by oshogbo on May 22 2019, 7:48 PM.
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emaste
markj
gnn
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rS348705: dtrace: 64-bits registers support
Summary

The registers in ilumos and FreeBSD have a different number.
In the illumos, last 32-bits register defined is SS an in FreeBSD is GS.
This off-by-one caused the uregs array to returns the wrong 64-bits register
on amd64.

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rS FreeBSD src repository - subversion
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Event Timeline

oshogbo created this revision.May 22 2019, 7:48 PM
Harbormaster completed remote builds in B24407: Diff 57718.May 22 2019, 7:48 PM
oshogbo added reviewers: emaste, markj, gnn.May 22 2019, 7:48 PM
markj accepted this revision.May 22 2019, 9:10 PM
markj added inline comments.
sys/cddl/dev/dtrace/amd64/dtrace_isa.c
519 ↗(On Diff #57718)

I wouldn't bother with the comment in such a small block.

This revision is now accepted and ready to land.May 22 2019, 9:10 PM
Closed by commit rS348705: dtrace: 64-bits registers support (authored by oshogbo). · Explain WhyJun 5 2019, 10:29 PM
This revision was automatically updated to reflect the committed changes.
Herald added 1 blocking reviewer(s): gnn. · View Herald TranscriptJun 5 2019, 10:29 PM
Herald added a subscriber: imp. · View Herald Transcript

Revision Contents
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PathSize
head/
sys/
cddl/
dev/
dtrace/
amd64/
4 lines

Diff 58283

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head/sys/cddl/dev/dtrace/amd64/dtrace_isa.c

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