From patchwork Tue Mar 16 06:52:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chang S. Bae" X-Patchwork-Id: 42571 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 9AAA83854817; Tue, 16 Mar 2021 06:57:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9AAA83854817 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1615877845; bh=y7vBL3q2IaYMLfPMwWpZkbW8/7hWjWQa9p30aOFK+sY=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=ih46FqjFDxBFdJ3xXY0PB7oQNGr8AavlkikYaI581qeQi3IWN31MHeo6DCdH3PQBo HfQmjWb7Qcv2TF/+zPqFL1surcMvu0Xr0uN+eprCf6dhjNHuDAuPzeAbEGqld0wtmB ANmsxMOueKW9afh7F6bvdbhoe5WgLq4MgspYD/B8= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by sourceware.org (Postfix) with ESMTPS id 685163858D29 for ; Tue, 16 Mar 2021 06:57:15 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 685163858D29 IronPort-SDR: 2bDUJMW7jefVXeVHafUyuCYnW/05nd++KmjQfJItI+ajmu2OInM8AbuKAmed3gePYzByKhYsR1 KS+rUlXtp20g== X-IronPort-AV: E=McAfee;i="6000,8403,9924"; a="169126405" X-IronPort-AV: E=Sophos;i="5.81,251,1610438400"; d="scan'208";a="169126405" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Mar 2021 23:57:12 -0700 IronPort-SDR: rOPDJOAsOFDbRcEfR+EqNuSZh1wdhYTg+KOn6YNhaZXTxqe24dCh82+XZ59vNByO6rEyvF+VN5 K60J2nycGLRQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,251,1610438400"; d="scan'208";a="511296073" Received: from chang-linux-3.sc.intel.com ([172.25.66.175]) by fmsmga001.fm.intel.com with ESMTP; 15 Mar 2021 23:57:11 -0700 To: bp@suse.de, tglx@linutronix.de, mingo@kernel.org, luto@kernel.org, x86@kernel.org Subject: [PATCH v7 1/6] uapi: Define the aux vector AT_MINSIGSTKSZ Date: Mon, 15 Mar 2021 23:52:10 -0700 Message-Id: <20210316065215.23768-2-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210316065215.23768-1-chang.seok.bae@intel.com> References: <20210316065215.23768-1-chang.seok.bae@intel.com> X-Spam-Status: No, score=-11.1 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: "Chang S. Bae via Libc-alpha" From: "Chang S. Bae" Reply-To: "Chang S. Bae" Cc: linux-arch@vger.kernel.org, len.brown@intel.com, tony.luck@intel.com, libc-alpha@sourceware.org, ravi.v.shankar@intel.com, chang.seok.bae@intel.com, jannh@google.com, linux-kernel@vger.kernel.org, dave.hansen@intel.com, linux-api@vger.kernel.org, Dave.Martin@arm.com, linux-arm-kernel@lists.infradead.org Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Define the AT_MINSIGSTKSZ in generic Linux. It is already used as generic ABI in glibc's generic elf.h, and this define will prevent future namespace conflicts. In particular, x86 is also using this generic definition. Signed-off-by: Chang S. Bae Reviewed-by: Len Brown Cc: Carlos O'Donell Cc: Dave Martin Cc: libc-alpha@sourceware.org Cc: linux-arch@vger.kernel.org Cc: linux-api@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- Change from v6: * Revised the comment. (Borislav Petkov) Change from v5: * Reverted the arm64 change. (Dave Martin and Will Deacon) * Massaged the changelog. Change from v4: * Added as a new patch (Carlos O'Donell) --- include/uapi/linux/auxvec.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/uapi/linux/auxvec.h b/include/uapi/linux/auxvec.h index abe5f2b6581b..c7e502bf5a6f 100644 --- a/include/uapi/linux/auxvec.h +++ b/include/uapi/linux/auxvec.h @@ -33,5 +33,8 @@ #define AT_EXECFN 31 /* filename of program */ +#ifndef AT_MINSIGSTKSZ +#define AT_MINSIGSTKSZ 51 /* minimal stack size for signal delivery */ +#endif #endif /* _UAPI_LINUX_AUXVEC_H */