libc: only append exterr herald and text if exterr was recorded
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Authored by kib on Jul 8 2025, 2:05 PM.

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markj
asomers
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rG72c848089f3b: libc: only append exterr herald and text if exterr was recorded

Summary

__uexterr_format: return empty string on no error, instead of "No error"
err(): check for the first symbol of the exterr to decide if there is
anything to print.

Requested by:   markj

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

kib created this revision.Jul 8 2025, 2:05 PM

Herald added a subscriber: imp. · View Herald TranscriptJul 8 2025, 2:05 PM

kib requested review of this revision.Jul 8 2025, 2:05 PM

markj accepted this revision.Jul 8 2025, 3:45 PM

This revision is now accepted and ready to land.Jul 8 2025, 3:45 PM

I verified that the test failures are gone now, thank you.

Closed by commit rG72c848089f3b: libc: only append exterr herald and text if exterr was recorded (authored by kib). · Explain WhyJul 8 2025, 3:56 PM

This revision was automatically updated to reflect the committed changes.

kib added a commit: rG72c848089f3b: libc: only append exterr herald and text if exterr was recorded.

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lib/

libc/

gen/

err.c

2 lines

uexterr_format.c

2 lines

Diff 158169

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lib/libc/gen/err.c