From patchwork Mon Nov 2 23:47:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Viktorin X-Patchwork-Id: 8559 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id B33FC91CF; Tue, 3 Nov 2015 00:50:32 +0100 (CET) Received: from wes1-so1.wedos.net (wes1-so1.wedos.net [46.28.106.15]) by dpdk.org (Postfix) with ESMTP id CB8728E81 for ; Tue, 3 Nov 2015 00:50:22 +0100 (CET) Received: from pcviktorin.fit.vutbr.cz (pcviktorin.fit.vutbr.cz [147.229.13.147]) by wes1-so1.wedos.net (Postfix) with ESMTPSA id 3nqWFp3J6zz37K; Tue, 3 Nov 2015 00:50:22 +0100 (CET) From: Jan Viktorin To: david.marchand@6wind.com, David Hunt , Thomas Monjalon , Jerin Jacob Date: Tue, 3 Nov 2015 00:47:26 +0100 Message-Id: <1446508048-16744-14-git-send-email-viktorin@rehivetech.com> X-Mailer: git-send-email 2.6.2 In-Reply-To: <1446508048-16744-1-git-send-email-viktorin@rehivetech.com> References: <1446508048-16744-1-git-send-email-viktorin@rehivetech.com> Cc: dev@dpdk.org, Vlastimil Kosar Subject: [dpdk-dev] [PATCH v6 13/15] gcc/arm: avoid alignment errors to break build X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" There several issues with alignment when compiling for ARMv7. They are not considered to be fatal (ARMv7 supports unaligned access of 32b words), so we just leave them as warnings. They should be solved later, however. Signed-off-by: Jan Viktorin Signed-off-by: Vlastimil Kosar --- v4: restrict -Wno-error to the cast-align only --- mk/toolchain/gcc/rte.vars.mk | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mk/toolchain/gcc/rte.vars.mk b/mk/toolchain/gcc/rte.vars.mk index 0f51c66..c2c5255 100644 --- a/mk/toolchain/gcc/rte.vars.mk +++ b/mk/toolchain/gcc/rte.vars.mk @@ -77,6 +77,12 @@ WERROR_FLAGS += -Wcast-align -Wnested-externs -Wcast-qual WERROR_FLAGS += -Wformat-nonliteral -Wformat-security WERROR_FLAGS += -Wundef -Wwrite-strings +# There are many issues reported for ARMv7 architecture +# which are not necessarily fatal. Report as warnings. +ifeq ($(CONFIG_RTE_ARCH_ARMv7),y) +WERROR_FLAGS += -Wno-error=cast-align +endif + # process cpu flags include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.toolchain-compat.mk