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c=relaxed/relaxed; d=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-caviumnetworks-com; h=From:To:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=dkWqiF5nUs/EU0RrxzDT3kyik4sTmGhZPlJd8mAxo20=; b=Qv+f2dTCRXiLO3t394+nUKIeFQK/FkTi8aGnL7pYPURXl7fZNYSWC1Yvvbq4mR0Pgs52GOuNNOLOlClh0njThnWRFypH6Uac7Z4LEeXi/6Rx9WFjhYNJjXJyKl+rfENzQgQ6ChVrPMSGu1PEyMV7M2HDw3au/jMfuIkuF2h1OwI= Authentication-Results: arndb.de; dkim=none (message not signed) header.d=none;arndb.de; dmarc=none action=none header.from=caviumnetworks.com; Received: from localhost (95.143.213.121) by BY2PR07MB614.namprd07.prod.outlook.com (10.141.222.146) with Microsoft SMTP Server (TLS) id 15.1.447.15; Tue, 5 Apr 2016 22:10:58 +0000 From: Yury Norov To: , , , CC: , , , , , , , , , , , , , , , , Andrew Pinski , Andrew Pinski , Philipp Tomsich Subject: [PATCH 09/25] arm64: ensure the kernel is compiled for LP64 Date: Wed, 6 Apr 2016 01:08:31 +0300 Message-ID: <1459894127-17698-10-git-send-email-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1459894127-17698-1-git-send-email-ynorov@caviumnetworks.com> References: <1459894127-17698-1-git-send-email-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [95.143.213.121] X-ClientProxiedBy: AM2PR03CA0037.eurprd03.prod.outlook.com (10.160.207.47) To BY2PR07MB614.namprd07.prod.outlook.com (10.141.222.146) X-MS-Office365-Filtering-Correlation-Id: ee83870e-d87e-41b8-72ab-08d35d9f2ade X-Microsoft-Exchange-Diagnostics: 1; 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BY2PR07MB614; 5:zEqjSTTLlKiH6pUUreRNdqFZ/IvTQEh4DOZ94BFsFP7K2/6wmDDdC/bkLNoP03sdKEWJWtP6EKWmTdPiXXxzYF3NZpcgBNlPHeciSpjjNRN0i1OIuNzjVTA9NxH/CbIAPOo58WMM9PxEQpFWdgtQdA==; 24:3+xskM+V4RsxU4mB7ixdHvWs8XAJ3ijcZv7232QRJVZ2xrW6M+bwWyMmZ+qBRaxh+EYfXfZk48W78VJ809Pc0S0LB+i/fHPORVZi8dhmvGQ= SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: caviumnetworks.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Apr 2016 22:10:58.5245 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR07MB614 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrew Pinski The kernel needs to be compiled as a LP64 binary for ARM64, even when using a compiler that defaults to code-generation for the ILP32 ABI. Consequently, we need to explicitly pass '-mabi=lp64' (supported on gcc-4.9 and newer). Signed-off-by: Andrew Pinski Signed-off-by: Philipp Tomsich Signed-off-by: Christoph Muellner Signed-off-by: Yury Norov Reviewed-by: David Daney --- arch/arm64/Makefile | 5 +++++ 1 file changed, 5 insertions(+) -- 2.5.0 diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 354d754..29ebf23 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -35,14 +35,19 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) KBUILD_AFLAGS += $(lseinstr) +KBUILD_CFLAGS += $(call cc-option,-mabi=lp64) +KBUILD_AFLAGS += $(call cc-option,-mabi=lp64) + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian AS += -EB LD += -EB +LDFLAGS += -maarch64linuxb else KBUILD_CPPFLAGS += -mlittle-endian AS += -EL LD += -EL +LDFLAGS += -maarch64linux endif CHECKFLAGS += -D__aarch64__