Messages in this thread | | | Date | Wed, 5 Feb 2020 11:53:31 +0000 | From | Quentin Perret <> | Subject | Re: [PATCH v2] kbuild: allow symbol whitelisting with TRIM_UNUSED_KSYMS |
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On Tuesday 04 Feb 2020 at 14:44:15 (+0000), 'Matthias Maennich' via kernel-team wrote: > That definitely looks like I would expect that config option to work.
Good, thank you, I'll send an update.
And while at it, I realized we could actually pre-populate autoksyms.h very early on with the content of the whitelist instead of having it empty. That way, there's a whole lot of things that will be compiled 'correctly' from the start (that is, adjust_autoksyms.sh won't need to re-compile them later on). And in fact, if all symbols used by in-tree modules happen to already be on the whitelist, you'll build a trimmed kernel in a single pass, which should improve build time a bit I hope.
I'll add something to v3 in addition to your suggestion.
Thanks, Quentin
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