From patchwork Wed May 11 16:45:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 12846461 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 616ABC4167D for ; Wed, 11 May 2022 16:49:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345025AbiEKQtq (ORCPT ); Wed, 11 May 2022 12:49:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45222 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345023AbiEKQtp (ORCPT ); Wed, 11 May 2022 12:49:45 -0400 Received: from conuserg-08.nifty.com (conuserg-08.nifty.com [210.131.2.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3F6993982; Wed, 11 May 2022 09:49:41 -0700 (PDT) Received: from grover.jp (133-32-177-133.west.xps.vectant.ne.jp [133.32.177.133]) (authenticated) by conuserg-08.nifty.com with ESMTP id 24BGlWbt031975; Thu, 12 May 2022 01:47:33 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-08.nifty.com 24BGlWbt031975 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1652287653; bh=lrObdII52qYaJ8/FrDvrISgaVLdCtE8oZBm6XPqiaSk=; h=From:To:Cc:Subject:Date:From; b=HvtaKjwQOeSVYjh0ysolTKw0r7pYVYcERlcwdZpQLSOyb2htJarI4X6oEKYJW2JkY tUbRVR91L2AF0dD1Rm2Vk0RX7YF7XqkSYZ3t1F7qvDTKnUgrepZMO5x7s6v92Y8eZ8 mD9InCNq+6Jxrb8ndZ0bQw05WvtYTPDYOT1UkYxyjwSGbXXDAj5fTVBUD+Xqcx4S7y KKqMgXogOY3dTzJKqvR5i2XOEelm82Cnagl86UAClKILMUQ4PFtcdOa/yuLTeUv18Z MfUEG6YvFOLsG9Wq1OxvL3Wia1Nn2LvlUkFG2cpMeRwfzP8jd0LY0ZWJHKQO1RCJOd Bz2xXMR/ivgfw== X-Nifty-SrcIP: [133.32.177.133] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Nathan Chancellor , Nick Desaulniers , Nicolas Schier , Peter Zijlstra , linux-modules@vger.kernel.org, llvm@lists.linux.dev, Ard Biesheuvel , Sami Tolvanen , Masahiro Yamada Subject: [PATCH v5 00/12] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h) Date: Thu, 12 May 2022 01:45:02 +0900 Message-Id: <20220511164514.2741934-1-masahiroy@kernel.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org This is the third batch of cleanups in this development cycle. Major changes in v5: - Fix build errors - More cleanups 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 (12): 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/m68k/include/asm/Kbuild | 1 + arch/m68k/include/asm/export.h | 2 - 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 | 64 ++ scripts/genksyms/genksyms.c | 18 +- scripts/link-vmlinux.sh | 33 +- scripts/mod/Makefile | 4 +- scripts/mod/modpost.c | 1395 +++---------------------------- scripts/mod/modpost.h | 34 +- scripts/mod/section-check.c | 1222 +++++++++++++++++++++++++++ 22 files changed, 1541 insertions(+), 1482 deletions(-) delete mode 100644 arch/m68k/include/asm/export.h create mode 100644 include/linux/export-internal.h create mode 100755 scripts/check-local-export create mode 100644 scripts/mod/section-check.c Tested-by: Nathan Chancellor