Differential D19574

powerpc64: Fix kernel ldscript to only emit one PT_LOAD segment
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Authored by jhibbits on Mar 13 2019, 8:31 PM.

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rS345678: powerpc64: Fix kernel ldscript to only emit one PT_LOAD segment

Summary

kexec-lite cannot currently handle multiple PT_LOAD segments. In some
cases the compiler generates multiple PT_LOAD segments for an unknown
reason, causing boot to fail from kexec-lite.

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rS FreeBSD src repository - subversion

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Event Timeline

jhibbits created this revision.Mar 13 2019, 8:31 PM

Harbormaster completed remote builds in B23068: Diff 55035.Mar 13 2019, 8:31 PM

Patch created by Brandon Bergren, who also pointed out the problem.

This is functionally identical to what I've been running locally since last October for my ELFv2 kernel builds.

I have also tested this (with an ELFv2 kernel) on my G5. Currently building an ELFv1 kernel on the G5, will test that as well tomorrow.

ELFv1 test went fine too on the G5.

bdragon mentioned this in D19352: Fix PPC64 kernel build with clang8 + lld8.Mar 17 2019, 5:42 PM

This revision was not accepted when it landed; it landed in state Needs Review.Mar 29 2019, 3:01 AM

Closed by commit rS345678: powerpc64: Fix kernel ldscript to only emit one PT_LOAD segment (authored by jhibbits). · Explain Why

This revision was automatically updated to reflect the committed changes.

Herald added a subscriber: imp. · View Herald TranscriptMar 29 2019, 3:01 AM

Revision Contents
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head/

sys/

conf/

ldscript.powerpc64

11 lines

Diff 55573

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head/sys/conf/ldscript.powerpc64

powerpc64: Fix kernel ldscript to only emit one PT_LOAD segmentClosedPublicActions