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From:   Masahiro Yamada <masahiroy@kernel.org>
To:     linux-kbuild@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Nicolas Schier <nicolas@fjasle.eu>,
        Peter Zijlstra <peterz@infradead.org>,
        linux-modules@vger.kernel.org, linux-s390@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, clang-built-linux@googlegroups.com,
        Ard Biesheuvel <ardb@kernel.org>,
        Sami Tolvanen <samitolvanen@google.com>,
        Masahiro Yamada <masahiroy@kernel.org>
Subject: [PATCH v4 00/14] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h)
Date:   Mon,  9 May 2022 04:06:17 +0900
Message-Id: <20220508190631.2386038-1-masahiroy@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

This is the third batch of cleanups in this development cycle.

Major changes in v4:
 - Move static EXPORT_SYMBOL check to a script
 - Some refactoring

Major changes in v3:

 - Generate symbol CRCs as C code, and remove CONFIG_MODULE_REL_CRCS.

Major changes in v2:

 - V1 did not work with CONFIG_MODULE_REL_CRCS.
   I fixed this for v2.

 - Reflect some review comments in v1

 - Refactor the code more

 - Avoid too long argument error


Masahiro Yamada (14):
  modpost: remove left-over cross_compile declaration
  modpost: change the license of EXPORT_SYMBOL to bool type
  modpost: split the section mismatch checks into section-check.c
  modpost: add sym_find_with_module() helper
  modpost: extract symbol versions from *.cmd files
  kbuild: link symbol CRCs at final link, removing
    CONFIG_MODULE_REL_CRCS
  kbuild: stop merging *.symversions
  genksyms: adjust the output format to modpost
  kbuild: do not create *.prelink.o for Clang LTO or IBT
  kbuild: check static EXPORT_SYMBOL* by script instead of modpost
  kbuild: make built-in.a rule robust against too long argument error
  kbuild: make *.mod rule robust against too long argument error
  kbuild: add cmd_and_savecmd macro
  kbuild: rebuild multi-object modules when objtool is updated

 arch/powerpc/Kconfig            |    1 -
 arch/s390/Kconfig               |    1 -
 arch/um/Kconfig                 |    1 -
 include/asm-generic/export.h    |   22 +-
 include/linux/export-internal.h |   16 +
 include/linux/export.h          |   30 +-
 init/Kconfig                    |    4 -
 kernel/module.c                 |   10 +-
 scripts/Kbuild.include          |   10 +-
 scripts/Makefile.build          |  134 +--
 scripts/Makefile.lib            |    7 -
 scripts/Makefile.modfinal       |    5 +-
 scripts/Makefile.modpost        |    9 +-
 scripts/check-local-export      |   48 +
 scripts/genksyms/genksyms.c     |   18 +-
 scripts/link-vmlinux.sh         |   33 +-
 scripts/mod/Makefile            |    2 +-
 scripts/mod/modpost.c           | 1499 ++++---------------------------
 scripts/mod/modpost.h           |   35 +-
 scripts/mod/section-check.c     | 1222 +++++++++++++++++++++++++
 20 files changed, 1551 insertions(+), 1556 deletions(-)
 create mode 100644 include/linux/export-internal.h
 create mode 100755 scripts/check-local-export
 create mode 100644 scripts/mod/section-check.c

-- 
2.32.0