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[209.132.180.67]) by mx.google.com with ESMTP id gg2si40536075pbc.80.2015.09.29.15.16.22; Tue, 29 Sep 2015 15:16:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756530AbbI2WQP (ORCPT + 30 others); Tue, 29 Sep 2015 18:16:15 -0400 Received: from mail-bl2on0089.outbound.protection.outlook.com ([65.55.169.89]:36479 "EHLO na01-bl2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755589AbbI2WP4 (ORCPT ); Tue, 29 Sep 2015 18:15:56 -0400 Received: from localhost (91.78.158.8) by DM2PR07MB622.namprd07.prod.outlook.com (10.141.177.146) with Microsoft SMTP Server (TLS) id 15.1.280.20; Tue, 29 Sep 2015 22:15:53 +0000 From: Yury Norov To: , , , , , CC: , , , , , Yury Norov Subject: [PATCH v5 05/23] arm64:ilp32: expose 'kernel_long' as 'long long' for ILP32 Date: Wed, 30 Sep 2015 01:14:02 +0300 Message-ID: <1443564860-31208-6-git-send-email-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1443564860-31208-1-git-send-email-ynorov@caviumnetworks.com> References: <1443564860-31208-1-git-send-email-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [91.78.158.8] X-ClientProxiedBy: HE1PR03CA0005.eurprd03.prod.outlook.com (25.163.170.143) To DM2PR07MB622.namprd07.prod.outlook.com (10.141.177.146) X-Microsoft-Exchange-Diagnostics: 1; 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X-Original-Sender: linux-kernel-owner@vger.kernel.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.215.51 as permitted sender) smtp.mailfrom=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , From: Andrew Pinski Since we want time_t and some other userland types to be the same between ILP32 and LP64, we define __kernel_long_t to be long long. To reuse the bulk of LP64 system calls (and data structures), the LP64 kernel data types ('kernel_long', 'kernel_ulong') are exposed as their ILP32 'long long' and 'unsigned long long' equivalents to allow glibc to correctly interpret most data-structures used in the kernel ABI (i.el with the exception of those, that include pointers). Signed-off-by: Philipp Tomsich Signed-off-by: Christoph Muellner Signed-off-by: Yury Norov diff --git a/arch/arm64/include/uapi/asm/posix_types.h b/arch/arm64/include/uapi/asm/posix_types.h index 7985ff6..d6a7cb5 100644 --- a/arch/arm64/include/uapi/asm/posix_types.h +++ b/arch/arm64/include/uapi/asm/posix_types.h @@ -5,6 +5,16 @@ typedef unsigned short __kernel_old_uid_t; typedef unsigned short __kernel_old_gid_t; #define __kernel_old_uid_t __kernel_old_uid_t +#if defined(__ILP32__) +/* The ILP32 kernel ABI reuses LP64 system calls where possible; to + this end, the equivalent ILP32 type definitions are used (a 64bit + 'long'-type in LP64 corresponds to a 'long long' in LP64). */ + +typedef long long __kernel_long_t; +typedef unsigned long long __kernel_ulong_t; +#define __kernel_long_t __kernel_long_t +#endif /* defined(__ILP32__) */ + #include -#endif /* __ASM_POSIX_TYPES_H */ +#endif /* __ASM_POSIX_TYPES_H */