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SubjectRe: [PATCH 00/27] kbuild: yet another series of cleanups (modpost and LTO)
On Wed, Apr 27, 2022 at 5:11 AM Nicolas Schier <nicolas@fjasle.eu> 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
> >
> > .gitignore | 1 +
> > Makefile | 1 +
> > scripts/Kbuild.include | 4 +
> > scripts/Makefile.build | 107 ++------
> > scripts/Makefile.lib | 7 -
> > scripts/Makefile.modfinal | 6 +-
> > scripts/Makefile.modpost | 9 +-
> > scripts/link-vmlinux.sh | 38 ++-
> > scripts/mod/file2alias.c | 2 -
> > scripts/mod/list.h | 336 ++++++++++++++++++++++++
> > scripts/mod/modpost.c | 529 +++++++++++++++++++++++---------------
> > scripts/mod/modpost.h | 27 +-
> > 12 files changed, 731 insertions(+), 336 deletions(-)
> > create mode 100644 scripts/mod/list.h
> >
> > --
> > 2.32.0
>
> --
> epost|xmpp: nicolas@fjasle.eu irc://oftc.net/nsc
> ↳ gpg: 18ed 52db e34f 860e e9fb c82b 7d97 0932 55a0 ce7f
> -- frykten for herren er opphav til kunnskap --



--
Best Regards
Masahiro Yamada

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