From patchwork Wed Aug 14 16:06:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 11094193 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2F4376C5 for ; Wed, 14 Aug 2019 16:07:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 17CC8288B8 for ; Wed, 14 Aug 2019 16:07:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0244288BC; Wed, 14 Aug 2019 16:07:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6B995288B8 for ; Wed, 14 Aug 2019 16:07:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=YPQJq4miGsOGvYcyaRx3zixUxToWo/drVgDqO99+fA0=; b=Tsc6m7dE3bVvijDAZB46w/YjaR ABNskZmDF2dMwoFIieVX7pK4cZmtXfY/hpulkYjm4INfYCXRowF/gP7LFZB0ScnC2Hwg6ERjw9pP+ Egtv6fbGnrxOswAOAMXQIrNj4+NPkSGr5XzF2GbieaIN5OS2wAE3VVWRtp2UUQlrOvPL/jGWikxko fsE5nD/6fte4ezsWlXCzt07umWxOAomHwqbx22xSDswrt8+AnkgMJS1tiRTMUwZl/qwwwotp0vr8m JXj336XjzhQYDnj3q4eEINcOrhyzB1mU7tQOxZU9KfMRUtF1zGGN64alfnJAs5TLs8aoP7r3BR0k3 7/YdmhOg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hxvoG-000266-Vo; Wed, 14 Aug 2019 16:07:37 +0000 Received: from conuserg-12.nifty.com ([210.131.2.79]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hxvoC-00025X-Ue; Wed, 14 Aug 2019 16:07:34 +0000 Received: from grover.flets-west.jp (softbank126125143222.bbtec.net [126.125.143.222]) (authenticated) by conuserg-12.nifty.com with ESMTP id x7EG6O96024737; Thu, 15 Aug 2019 01:06:25 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-12.nifty.com x7EG6O96024737 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1565798787; bh=yk1HWpNfTmkZbWBqsqVdh6AULBtm9wKk1Bz6SrKDiZw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u9634RMJrxKOcAOzQILC4PnPqiwSFwuSmwZLaERdwD0CHqgtGiMzuAPYLbhWTT8T+ deh/fa9P9Exx+QEmRivbZdh8ux3rpxGT/oE1CxRLq+jFcHnqyCrPz3Tuoi90rN3xNb GKUuZ+TBGLuKwqsBKdai55hSNdci+rvsMloApwCGxZFj3D60RAlUFDCAU9k17gJl7D 0E93hb+vURy1pJmAtKOfpaFWZsLqbaq5xRwo1ANP/JcuPmhZJqWyrVSZmUeKKCHUme vpdaYtWYgHtittcwf+V0Bqb5Q5Ipr1dbaGJke0lmWgj3XJEaj4g10lXhRKBlcXvTGl AZJzZX2MrQXwg== X-Nifty-SrcIP: [126.125.143.222] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Subject: [PATCH 2/3] kbuild: rebuild modules when module linker scripts are updated Date: Thu, 15 Aug 2019 01:06:22 +0900 Message-Id: <20190814160623.24802-2-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190814160623.24802-1-yamada.masahiro@socionext.com> References: <20190814160623.24802-1-yamada.masahiro@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190814_090733_209194_EA5D18F4 X-CRM114-Status: UNSURE ( 8.22 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, Catalin Marinas , Palmer Dabbelt , "James E.J. Bottomley" , Masahiro Yamada , Paul Mackerras , linux-riscv@lists.infradead.org, Will Deacon , Jonathan Corbet , Michael Ellerman , Helge Deller , Russell King , Geert Uytterhoeven , Benjamin Herrenschmidt , Fenghua Yu , Albert Ou , linux-m68k@lists.linux-m68k.org, Michal Marek , Paul Walmsley , linux-arm-kernel@lists.infradead.org, Tony Luck , linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Currently, the timestamp of module linker scripts are not checked. Add them to the dependency of modules so they are correctly rebuilt. Signed-off-by: Masahiro Yamada --- Documentation/kbuild/makefiles.rst | 5 +++++ Makefile | 3 ++- arch/arm/Makefile | 2 +- arch/arm64/Makefile | 2 +- arch/ia64/Makefile | 2 +- arch/m68k/Makefile | 2 +- arch/parisc/Makefile | 2 +- arch/powerpc/Makefile | 2 +- arch/riscv/Makefile | 2 +- scripts/Makefile.modpost | 5 +++-- 10 files changed, 17 insertions(+), 10 deletions(-) diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst index d3448d2c8017..36ba92e199d2 100644 --- a/Documentation/kbuild/makefiles.rst +++ b/Documentation/kbuild/makefiles.rst @@ -999,6 +999,11 @@ When kbuild executes, the following steps are followed (roughly): The linker script with full path. Assigned by the top-level Makefile. + KBUILD_LDS_MODULE + + The module linker script with full path. Assigned by the top-level + Makefile and additionally by the arch Makefile. + KBUILD_VMLINUX_OBJS All object files for vmlinux. They are linked to vmlinux in the same diff --git a/Makefile b/Makefile index 164ca615e2f6..af808837a1f2 100644 --- a/Makefile +++ b/Makefile @@ -485,7 +485,8 @@ KBUILD_AFLAGS_KERNEL := KBUILD_CFLAGS_KERNEL := KBUILD_AFLAGS_MODULE := -DMODULE KBUILD_CFLAGS_MODULE := -DMODULE -KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds +KBUILD_LDFLAGS_MODULE := +export KBUILD_LDS_MODULE := $(srctree)/scripts/module-common.lds KBUILD_LDFLAGS := GCC_PLUGINS_CFLAGS := CLANG_FLAGS := diff --git a/arch/arm/Makefile b/arch/arm/Makefile index c3624ca6c0bc..fbe50eec8f34 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -17,7 +17,7 @@ KBUILD_LDFLAGS_MODULE += --be8 endif ifeq ($(CONFIG_ARM_MODULE_PLTS),y) -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm/kernel/module.lds +KBUILD_LDS_MODULE += $(srctree)/arch/arm/kernel/module.lds endif GZFLAGS :=-9 diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 61de992bbea3..d4ed1869e536 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -101,7 +101,7 @@ endif CHECKFLAGS += -D__aarch64__ ifeq ($(CONFIG_ARM64_MODULE_PLTS),y) -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm64/kernel/module.lds +KBUILD_LDS_MODULE += $(srctree)/arch/arm64/kernel/module.lds endif # Default value diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 171290f9f1de..5c3bcaee5980 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -20,7 +20,7 @@ CHECKFLAGS += -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__ OBJCOPYFLAGS := --strip-all LDFLAGS_vmlinux := -static -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/ia64/module.lds +KBUILD_LDS_MODULE += $(srctree)/arch/ia64/module.lds KBUILD_AFLAGS_KERNEL := -mconstant-gp EXTRA := diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index 482513b9af2c..5d9288384096 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -73,7 +73,7 @@ KBUILD_AFLAGS += -D__uClinux__ endif KBUILD_LDFLAGS := -m m68kelf -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds +KBUILD_LDS_MODULE += $(srctree)/arch/m68k/kernel/module.lds ifdef CONFIG_SUN3 LDFLAGS_vmlinux = -N diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 3b77d729057f..36b834f1c933 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -60,7 +60,7 @@ KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \ -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT) CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1))) -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/parisc/kernel/module.lds +KBUILD_LDS_MODULE += $(srctree)/arch/parisc/kernel/module.lds endif OBJCOPY_FLAGS =-O binary -R .note -R .comment -S diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index c345b79414a9..b2227855de20 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -67,7 +67,7 @@ UTS_MACHINE := $(subst $(space),,$(machine-y)) ifdef CONFIG_PPC32 KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o else -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/powerpc/kernel/module.lds +KBUILD_LDS_MODULE += $(srctree)/arch/powerpc/kernel/module.lds ifeq ($(call ld-ifversion, -ge, 225000000, y),y) # Have the linker provide sfpr if possible. # There is a corresponding test in arch/powerpc/lib/Makefile diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 7a117be8297c..426d989125a8 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -52,7 +52,7 @@ ifeq ($(CONFIG_CMODEL_MEDANY),y) KBUILD_CFLAGS += -mcmodel=medany endif ifeq ($(CONFIG_MODULE_SECTIONS),y) - KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/riscv/kernel/module.lds + KBUILD_LDS_MODULE += $(srctree)/arch/riscv/kernel/module.lds endif KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index bf15818f6947..905db30d6622 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -126,10 +126,11 @@ quiet_cmd_ld_ko_o = LD [M] $@ cmd_ld_ko_o = \ $(LD) -r $(KBUILD_LDFLAGS) \ $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ - -o $@ $(real-prereqs) ; \ + $(addprefix -T , $(KBUILD_LDS_MODULE)) \ + -o $@ $(filter %.o, $^); \ $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) -$(modules): %.ko :%.o %.mod.o FORCE +$(modules): %.ko :%.o %.mod.o $(KBUILD_LDS_MODULE) FORCE +$(call if_changed,ld_ko_o) targets += $(modules)