Re: [PATCH 00/27] kbuild: yet another series of cleanups (modpost and LTO)

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On Wed, Apr 27, 2022 at 12:18 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:
>
> On Wed, Apr 27, 2022 at 5:11 AM Nicolas Schier <nicolas@xxxxxxxxx> wrote:
> >
> > On Mon, Apr 25, 2022 at 04:07:44AM +0900 Masahiro Yamada wrote:
> > > This is the third batch of cleanups in this development cycle.
> > >
> > > This weekend, I wrote up the code I have been planning.
> > >
> > > After a bunch of modpost refactoring, I got rid of the ugly code
> > > in Makefiles.
> > >
> > > With this, Kbuild will get back much simpler and cleaner.
> > >
> >
> > Hi Masahiro,
> >
> > I tried applying the patch set onto your kbuild and
> > kbuild-fixes-v5.18, but it didn't apply.  Can you give me
> > a hint on your commit base?
>
>
> This series is based on  linux-kbuild/kbuild branch
> 7c39c50dcb74 ("scripts: dummy-tools, add pahole")
>
>
> Anyway, this series is too big.
> For convenience, I pushed this to a topic branch.
>
> Please try:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git
>  lto-cleanup
>
>
>
>
>
> > Kind regards,
> > Nicolas
> >
> > >
> > > Masahiro Yamada (27):
> > >   modpost: use snprintf() instead of sprintf() for safety
> > >   modpost: do not write out any file when error occurred
> > >   modpost: remove stale comment about sym_add_exported()
> > >   modpost: add a separate error for exported symbols without definition
> > >   modpost: retrieve the module dependency and CRCs in check_exports()
> > >   modpost: use bool type where appropriate
> > >   modpost: import include/linux/list.h
> > >   modpost: traverse modules in order
> > >   modpost: add sym_add_unresolved() helper
> > >   modpost: traverse unresolved symbols in order
> > >   modpost: use doubly linked list for dump_lists
> > >   modpost: move struct namespace_list to modpost.c
> > >   modpost: traverse the namespace_list in order
> > >   modpost: dump Module.symvers in the same order of modules.order
> > >   modpost: move static EXPORT_SYMBOL check to check_exports()
> > >   modpost: make multiple export error
> > >   modpost: make sym_add_exported() always allocate a new symbol
> > >   modpost: make sym_add_exported() a void function
> > >   modpost: use hlist for hash table implementation
> > >   modpost: mitigate false-negatives for static EXPORT_SYMBOL checks
> > >   kbuild: record symbol versions in *.cmd files
> > >   kbuild: generate a list of objects in vmlinux
> > >   modpost: retrieve symbol versions by parsing *.cmd files
> > >   modpost: generate linker script to collect symbol versions
> > >   kbuild: embed symbol versions at final link of vmlinux or modules
> > >   kbuild: stop generating *.symversions
> > >   kbuild: do not create *.prelink.o for Clang LTO or IBT

01-05 and 12 applied.

I will send v2 for the rest.




-- 
Best Regards
Masahiro Yamada



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