From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EF5DC11F6A for ; Fri, 2 Jul 2021 03:29:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 27C65613F1 for ; Fri, 2 Jul 2021 03:29:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234907AbhGBDcW (ORCPT ); Thu, 1 Jul 2021 23:32:22 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:54050 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S234791AbhGBDcV (ORCPT ); Thu, 1 Jul 2021 23:32:21 -0400 X-UUID: 444f03f430da48548f0351d4d845e019-20210702 X-UUID: 444f03f430da48548f0351d4d845e019-20210702 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1383365218; Fri, 02 Jul 2021 11:29:47 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 2 Jul 2021 11:29:45 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 2 Jul 2021 11:29:45 +0800 From: Lecopzer Chen To: , , , , CC: , , , , , Lecopzer Chen Subject: [PATCH v3 1/2] Kbuild: lto: add CONFIG_MAKE_VERSION Date: Fri, 2 Jul 2021 11:29:42 +0800 Message-ID: <20210702032943.7865-2-lecopzer.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210702032943.7865-1-lecopzer.chen@mediatek.com> References: <20210702032943.7865-1-lecopzer.chen@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To check the GNU make version. Used by the LTO Kconfig. LTO with MODVERSIONS will fail in generating correct CRC because the makefile rule doesn't work for make with version 3.8X.[1] Thus we need to check make version during selecting on LTO Kconfig. Add CONFIG_MAKE_VERSION which means MAKE_VERSION in canonical digits for arithmetic comparisons. [1] https://lore.kernel.org/lkml/20210616080252.32046-1-lecopzer.chen@mediatek.com/ Signed-off-by: Lecopzer Chen --- Makefile | 2 +- init/Kconfig | 4 ++++ scripts/make-version.sh | 13 +++++++++++++ 3 files changed, 18 insertions(+), 1 deletion(-) create mode 100755 scripts/make-version.sh diff --git a/Makefile b/Makefile index 88888fff4c62..2402745b2ba9 100644 --- a/Makefile +++ b/Makefile @@ -516,7 +516,7 @@ CLANG_FLAGS := export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC export CPP AR NM STRIP OBJCOPY OBJDUMP READELF PAHOLE RESOLVE_BTFIDS LEX YACC AWK INSTALLKERNEL -export PERL PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX +export PERL PYTHON3 CHECK CHECKFLAGS MAKE MAKE_VERSION UTS_MACHINE HOSTCXX export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE diff --git a/init/Kconfig b/init/Kconfig index 55f9f7738ebb..ecc110504f87 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -86,6 +86,10 @@ config CC_HAS_ASM_INLINE config CC_HAS_NO_PROFILE_FN_ATTR def_bool $(success,echo '__attribute__((no_profile_instrument_function)) int x();' | $(CC) -x c - -c -o /dev/null -Werror) +config MAKE_VERSION + int + default $(shell,$(srctree)/scripts/make-version.sh $(MAKE_VERSION)) + config CONSTRUCTORS bool diff --git a/scripts/make-version.sh b/scripts/make-version.sh new file mode 100755 index 000000000000..3a451db3c067 --- /dev/null +++ b/scripts/make-version.sh @@ -0,0 +1,13 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Print the GNU make version in a 5 or 6-digit form. + +set -e + +# Convert the version string x.y.z to a canonical 5 or 6-digit form. +IFS=. +set -- $1 + +# If the 2nd or 3rd field is missing, fill it with a zero. +echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0})) -- 2.18.0