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Biederman" , David Howells , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com Subject: [PATCH] ARM: do not assemble iwmmxt.S with LLVM toolchain Date: Thu, 9 Apr 2020 16:27:26 -0700 Message-Id: <20200409232728.231527-1-caij2003@gmail.com> X-Mailer: git-send-email 2.26.0.110.g2183baf09c-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org iwmmxt.S contains XScale instructions LLVM ARM backend does not support. Skip this file if LLVM integrated assemmbler or LLD is used to build ARM kernel. Signed-off-by: Jian Cai --- arch/arm/Kconfig | 2 +- init/Kconfig | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 66a04f6f4775..39de8fc64a73 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -804,7 +804,7 @@ source "arch/arm/mm/Kconfig" config IWMMXT bool "Enable iWMMXt support" - depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B + depends on !AS_IS_CLANG && !LD_IS_LLD && (CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B) default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B help Enable support for iWMMXt context switching at run time if diff --git a/init/Kconfig b/init/Kconfig index 1c12059e0f7e..b0ab3271e900 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -19,6 +19,12 @@ config GCC_VERSION config CC_IS_CLANG def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) +config AS_IS_CLANG + def_bool $(success,$(AS) --version | head -n 1 | grep -q clang) + +config LD_IS_LLD + def_bool $(success,$(LD) --version | head -n 1 | grep -q LLD) + config CLANG_VERSION int default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) -- 2.26.0.110.g2183baf09c-goog 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=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 5E57BC2BA19 for ; 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Thu, 09 Apr 2020 16:28:56 -0700 (PDT) Received: from jiancai.svl.corp.google.com ([2620:15c:2ce:0:b7ed:16a3:9dc0:21bb]) by smtp.googlemail.com with ESMTPSA id e14sm238783pjg.0.2020.04.09.16.28.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Apr 2020 16:28:56 -0700 (PDT) From: Jian Cai To: Subject: [PATCH] ARM: do not assemble iwmmxt.S with LLVM toolchain Date: Thu, 9 Apr 2020 16:27:26 -0700 Message-Id: <20200409232728.231527-1-caij2003@gmail.com> X-Mailer: git-send-email 2.26.0.110.g2183baf09c-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200409_162858_841231_B397E1D9 X-CRM114-Status: GOOD ( 13.60 ) 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: Linus Walleij , Peter.Smith@arm.com, stefan@agner.ch, David Howells , Mauro Carvalho Chehab , manojgupta@google.com, Benjamin Gaignard , "Joel Fernandes \(Google\)" , caij2003@gmail.com, clang-built-linux@googlegroups.com, ilie.halip@gmail.com, Masahiro Yamada , Russell King , Krzysztof Kozlowski , Bartosz Golaszewski , samitolvanen@google.com, "Eric W. Biederman" , Arnd Bergmann , "Steven Rostedt \(VMware\)" , jiancai@google.com, Doug Anderson , Dan Williams , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , ndesaulniers@google.com, linux-kernel@vger.kernel.org, Patrick Bellasi , Masami Hiramatsu , Tejun Heo , Andrew Morton Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org iwmmxt.S contains XScale instructions LLVM ARM backend does not support. Skip this file if LLVM integrated assemmbler or LLD is used to build ARM kernel. Signed-off-by: Jian Cai --- arch/arm/Kconfig | 2 +- init/Kconfig | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 66a04f6f4775..39de8fc64a73 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -804,7 +804,7 @@ source "arch/arm/mm/Kconfig" config IWMMXT bool "Enable iWMMXt support" - depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B + depends on !AS_IS_CLANG && !LD_IS_LLD && (CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B) default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B help Enable support for iWMMXt context switching at run time if diff --git a/init/Kconfig b/init/Kconfig index 1c12059e0f7e..b0ab3271e900 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -19,6 +19,12 @@ config GCC_VERSION config CC_IS_CLANG def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) +config AS_IS_CLANG + def_bool $(success,$(AS) --version | head -n 1 | grep -q clang) + +config LD_IS_LLD + def_bool $(success,$(LD) --version | head -n 1 | grep -q LLD) + config CLANG_VERSION int default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) -- 2.26.0.110.g2183baf09c-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel