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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6FADC282C5 for ; Fri, 28 Feb 2025 12:23:26 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3C692280005; Fri, 28 Feb 2025 07:23:26 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 377D3280001; Fri, 28 Feb 2025 07:23:26 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 23D47280005; Fri, 28 Feb 2025 07:23:26 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 03FA7280001 for ; Fri, 28 Feb 2025 07:23:25 -0500 (EST) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id A2F771C83FC for ; Fri, 28 Feb 2025 12:23:24 +0000 (UTC) X-FDA: 83169268728.18.639085E Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf13.hostedemail.com (Postfix) with ESMTP id D21DB2000B for ; Fri, 28 Feb 2025 12:23:21 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf13.hostedemail.com: domain of vincenzo.frascino@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=vincenzo.frascino@arm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1740745401; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KM3ydVBVnafIsB/lHgtTKaVq/Bf8M2zxPG/lctS+Y2Y=; b=VJabVtbnwX5GxUY+NsPgAYmiylgXsmkd77xK+rdx9oSEziWS8GAIW9SGfZp7NLUa/W2J+u HstAlz53wF27sBLRK1LoyQsjwKTp2SGLZ00bUXDRbTXbRC4c8aCWUGLq6aTClVRY1J+G1x cJjmfXUVhqFDOHim3gS/v7n/dETfbPI= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1740745401; a=rsa-sha256; cv=none; b=da1xQFmLW4G7VsoDznjJ/izb5J2HIux0F8kVJQYi2+9GJlrkEdgXAcaDEp9WCY3vKpy8/A SB7P9yhkhJ0ifTzkxtsLqDmkhRlppPmjK1ccoJKj5lazOOArmqls//NdNACtwkbGV0Yo5B WlCgHENQOhny5irwcF5wpAkU82LFozw= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf13.hostedemail.com: domain of vincenzo.frascino@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=vincenzo.frascino@arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 494CA1688; Fri, 28 Feb 2025 04:23:36 -0800 (PST) Received: from [10.1.196.72] (e119884-lin.cambridge.arm.com [10.1.196.72]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A4CE13F6A8; Fri, 28 Feb 2025 04:23:18 -0800 (PST) Message-ID: <289933df-3ffb-4a40-9d71-7f4bb3d4020d@arm.com> Date: Fri, 28 Feb 2025 12:23:17 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 02/16] elf, uapi: Add definition for STN_UNDEF To: =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Kees Cook , Eric Biederman , Shuah Khan , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Andy Lutomirski , Thomas Gleixner , Willy Tarreau , =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= Cc: "Jason A. Donenfeld" , Christophe Leroy , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, llvm@lists.linux.dev References: <20250226-parse_vdso-nolibc-v2-0-28e14e031ed8@linutronix.de> <20250226-parse_vdso-nolibc-v2-2-28e14e031ed8@linutronix.de> Content-Language: en-US From: Vincenzo Frascino In-Reply-To: <20250226-parse_vdso-nolibc-v2-2-28e14e031ed8@linutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Stat-Signature: 8o8k8c1c3gbz4rb9bz5gmwthmaakaoue X-Rspamd-Queue-Id: D21DB2000B X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1740745401-308484 X-HE-Meta: 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 16EBwlNn OCap/ug7oN45v2af519qgX/cKHK1TWm8tz95ITs37usaHTw9PUJWpAQon4nhsHJBg9QshfyLpuHvy/LkJHxNd5XuhfOz5vjZ2YZiEkElh1qdUSbCU7d1kksuuUuSTON5bJau84RwxgYFyDUWS9peK+XtpRjF3tdmOJZPlkAI2BNWBv/eO9GJ/KxnDVZbydWNEIeL7XbCDJDyn0P8sb+p+6mvbBMda8yVBU+voT0dXiBufrH6VSvenCjj8160xXSvd1b2NfC9eG/0ExJrCRPIETip4HMVG3jPvrTASNerNUNACJza7Ht6IfikItMuI6vG0c1GkBD424KaK4l26wf2x5dgh9q9l0XLTCKCkRVO0wQKIIyY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 26/02/2025 11:44, Thomas Weißschuh wrote: > The definition is used by tools/testing/selftests/vDSO/parse_vdso.c. > To be able to build the vDSO selftests without a libc dependency, > add the definition to the kernels own UAPI headers. > > Link: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.symtab.html > Reviewed-by: Kees Cook > Signed-off-by: Thomas Weißschuh > --- > include/uapi/linux/elf.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h > index b44069d29cecc0f9de90ee66bfffd2137f4275a8..448695c7364042b10682acc8223eb6053ad039dd 100644 > --- a/include/uapi/linux/elf.h > +++ b/include/uapi/linux/elf.h > @@ -125,6 +125,8 @@ typedef __s64 Elf64_Sxword; > #define STB_GLOBAL 1 > #define STB_WEAK 2 > > +#define STN_UNDEF 0 > + > #define STT_NOTYPE 0 > #define STT_OBJECT 1 > #define STT_FUNC 2 > Reviewed-by: Vincenzo Frascino -- Regards, Vincenzo