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Differential D30911

Modify sv_onexec hook to return error.
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Authored by dchagin on Jun 26 2021, 10:19 AM.
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andrew
emaste
imp

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manu
kib
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rG54689a282aee: linux(4): Modify sv_onexec hook to return an error.
rG5fd9cd53d256: linux(4): Modify sv_onexec hook to return an error.
Summary

Temporary add stubs to the Linux emulation layer which calls the existing hook.

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rS FreeBSD src repository - subversion
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No Test Coverage
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Buildable 40118
Build 37007: arc lint + arc unit

Event Timeline

dchagin created this revision.Jun 26 2021, 10:19 AM
Herald added a reviewer: manu. · View Herald TranscriptJun 26 2021, 10:19 AM
Herald added subscribers: emaste, andrew, imp. · View Herald Transcript
dchagin requested review of this revision.Jun 26 2021, 10:19 AM
Harbormaster completed remote builds in B40115: Diff 91388.Jun 26 2021, 10:20 AM
dchagin added a reviewer: kib.Jun 26 2021, 10:20 AM
dchagin changed the repository for this revision from rS FreeBSD src repository - subversion to rG FreeBSD src repository.
dchagin added a parent revision: D30899: Call sv_onexec handler after the process VA is created..
dchagin added a child revision: D30900: linux(4); Almost complete the vDSO..
kib added inline comments.Jun 26 2021, 11:09 AM
sys/kern/kern_exec.c
1155

At this point, error is KERN_SUCCESS, which is some Mach error code. We never assume that it has zero value. Please replace this fragment by e.g. the following

return (sv->sv_onexec != NULL ? sv->sv_onexec(p, imgp) : 0);
dchagin updated this revision to Diff 91391.Jun 26 2021, 12:26 PM

fixed, i missied that KERN_SUCCESS != 0

Harbormaster completed remote builds in B40118: Diff 91391.Jun 26 2021, 12:26 PM
kib accepted this revision.Jun 26 2021, 1:57 PM

KERN_SUCCESS is 0, but it is undesirable to depend on that.

This revision is now accepted and ready to land.Jun 26 2021, 1:57 PM
Closed by commit rG5fd9cd53d256: linux(4): Modify sv_onexec hook to return an error. (authored by dchagin). · Explain WhyJul 20 2021, 7:10 AM
This revision was automatically updated to reflect the committed changes.
dchagin added a commit: rG5fd9cd53d256: linux(4): Modify sv_onexec hook to return an error..
dchagin added a commit: rG54689a282aee: linux(4): Modify sv_onexec hook to return an error..Jun 17 2022, 7:37 PM

Revision Contents
Changeset List

PathSize
sys/
amd64/
linux/
12 lines
linux32/
12 lines
arm64/
linux/
12 lines
i386/
linux/
14 lines
kern/
4 lines
sys/
2 lines

Diff 91391

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sys/amd64/linux/linux_sysvec.c

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sys/amd64/linux32/linux32_sysvec.c

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sys/arm64/linux/linux_sysvec.c

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sys/i386/linux/linux_sysvec.c

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sys/kern/kern_exec.c

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sys/sys/sysent.h

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