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Define 'lr' as x30 on aarch64
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Authored by kan on Apr 7 2017, 3:36 PM.

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Reviewers

andrew
emaste
imp

Group Reviewers

arm64

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rS316626: Define 'lr' as x30 on aarch64

Summary

GNU toolchain does not recognize LR as standard register alias,
but clang does. Use of #define will work on both. Place the
definition into central machine/asm.h instead of patching every
affected file, as requested by plaftorm maintainers.

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rS FreeBSD src repository - subversion

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Event Timeline

kan created this revision.Apr 7 2017, 3:36 PM

Herald added subscribers: emaste, andrew, imp. · View Herald TranscriptApr 7 2017, 3:36 PM

kan added reviewers: andrew, emaste, arm64.Apr 7 2017, 3:36 PM

lgtm

This revision is now accepted and ready to land.Apr 7 2017, 3:38 PM

Harbormaster failed remote builds in B8584: Diff 27182!Apr 7 2017, 3:40 PM

andrew accepted this revision.Apr 7 2017, 3:45 PM

No objection from me. I am a bit puzzled by us having a mix of lr and x30 in our .S sources though.

Closed by commit rS316626: Define 'lr' as x30 on aarch64 (authored by kan). · Explain WhyApr 7 2017, 10:58 PM

This revision was automatically updated to reflect the committed changes.

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head/

sys/

arm64/

include/

asm.h

3 lines

Diff 27207

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head/sys/arm64/include/asm.h

Define 'lr' as x30 on aarch64ClosedPublicActions