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 X-Spam-Level: X-Spam-Status: No, score=-8.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B3D9C28CBC for ; Wed, 6 May 2020 10:16:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3423C20575 for ; Wed, 6 May 2020 10:16:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Lx3XkbsG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728557AbgEFKQN (ORCPT ); Wed, 6 May 2020 06:16:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726354AbgEFKQM (ORCPT ); Wed, 6 May 2020 06:16:12 -0400 Received: from mail-wm1-x341.google.com (mail-wm1-x341.google.com [IPv6:2a00:1450:4864:20::341]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69BF1C061A0F for ; Wed, 6 May 2020 03:16:12 -0700 (PDT) Received: by mail-wm1-x341.google.com with SMTP id r26so1981629wmh.0 for ; Wed, 06 May 2020 03:16:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=cc:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=PS0DJJtvWuHHfB/gb5wiK+AKxn9b2auIGP2Tdd+Xc6I=; b=Lx3XkbsGNc4VdjoTSabW2bJRhuXrArh9dewfOZ8xKEoKDoDNvRPFCNJtrcXLBeLFhq /jcZdrPUfau34vhVt+k6oSo25kYeJx9gAVlyUrT79zxcF9s2lVcrUiArEf3rTsZ+4XAF vlR+1v3iusahOj24FvnNdDFe6mGxIbSQISH+RWlE+uDAr5MvYBlUAsIjHjpGcjJ3Sc5Y 6D9pChrhkFsVV6M05nydrHUfqlY3WYqjWjEE6WwXSaNRYr9qMqODePFJA2CfCghqnWYL k8yqjrUNEYU8qkHQhCeu4amkRWAYT1SmuoN8uvIa81o1gLMa91yB6W9WkDq3T25e5swK TKlg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:cc:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=PS0DJJtvWuHHfB/gb5wiK+AKxn9b2auIGP2Tdd+Xc6I=; b=fTLEjhIPcz5pqx+rHMClvEbJGJpPixCk9jdT8RQr3/N3xaKBpRDgpU/Eyg/+HP/7Xg dTOeqH2jL8e+oAOiVHne6v3mcLDzRXHUOqic5Z3Od108fZAiyosazxHZBIctX6ST7oLg f0N5Nah9IKr+jQZ7tF9q4biCKlnN32paZJj9cFckhabr5kQj/r7ODG1vT3AJlo6+LwXi FPRHmCdpEcvaKEn6whZV8W3tT+pe79wz2gjRoI8prIfs0fexffwKH6KcYM3nEVpp20Uy zmtwLYjpUNgqLQPEbgahvBL5pdjHiKaCSXj4HIw2yDGTH24mQ6eRe5l4atRyfN/McPJm nsdQ== X-Gm-Message-State: AGi0Pua93kUXyNYR0iGdOZYta3htx+HTNWfnYgDapbo7QdoEf7aoG+DY zDo1seKoFmKr1rl9jJmE2J0aRnX3 X-Google-Smtp-Source: APiQypKK3r/55oUPK8TAeaGZHWQcJDF2vIIMv4dWsYnR7vLm4xlfPl7oghC+AZpwZtof+2deycWcow== X-Received: by 2002:a1c:5403:: with SMTP id i3mr3969583wmb.10.1588760170997; Wed, 06 May 2020 03:16:10 -0700 (PDT) Received: from ?IPv6:2001:a61:2482:101:a081:4793:30bf:f3d5? ([2001:a61:2482:101:a081:4793:30bf:f3d5]) by smtp.gmail.com with ESMTPSA id g24sm2057722wrb.35.2020.05.06.03.16.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 May 2020 03:16:10 -0700 (PDT) Cc: mtk.manpages@gmail.com, Russell King , Catalin Marinas , Will Deacon , linux-man@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 2/2] syscall.2: arm64: Fix syscall number register size To: Dave Martin References: <1588692280-15878-1-git-send-email-Dave.Martin@arm.com> <1588692280-15878-3-git-send-email-Dave.Martin@arm.com> From: "Michael Kerrisk (man-pages)" Message-ID: <82affb91-8aa9-0316-421a-3ce503e396e0@gmail.com> Date: Wed, 6 May 2020 12:16:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <1588692280-15878-3-git-send-email-Dave.Martin@arm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org On 5/5/20 5:24 PM, Dave Martin wrote: > arm64 is currently documented as receiving the syscall number in > x8. > > While this is the correct register, the syscall number is a 32-bit > integer. Bits [63:32] are ignored by the kernel. > > So it is more correct to say "w8". Thanks, Dave. Patch applied, with Will's Acked-by. Cheers, Michael > Signed-off-by: Dave Martin > --- > man2/syscall.2 | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/man2/syscall.2 b/man2/syscall.2 > index 53ab40e..d724651 100644 > --- a/man2/syscall.2 > +++ b/man2/syscall.2 > @@ -203,7 +203,7 @@ alpha callsys v0 v0 a4 a3 1, 6 > arc trap0 r8 r0 - - > arm/OABI swi NR - r0 - - 2 > arm/EABI swi 0x0 r7 r0 r1 - > -arm64 svc #0 x8 x0 x1 - > +arm64 svc #0 w8 x0 x1 - > blackfin excpt 0x0 P0 R0 - - > i386 int $0x80 eax eax edx - > ia64 break 0x100000 r15 r8 r9 r10 1, 6 > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ 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 X-Spam-Level: X-Spam-Status: No, score=-8.0 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E32B5C28CBC for ; Wed, 6 May 2020 10:16:18 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B144620575 for ; Wed, 6 May 2020 10:16:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="cl0c4APo"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Lx3XkbsG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B144620575 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7VT1Zkdw3pjCnrRXWPGzWV1YKmYZnAZWSOCRJuXNQ34=; b=cl0c4APowhJnLb NLrvLCaaX5UwZQAizkGZ3/Q0tF/NuYrdLmRgrmYlXLjsUACwYznWZUrowJXd+24FOXNJJ1odr0mc+ yIJmiZzgasE4HEac/H5BklJxaqQi55m3EmIpTkM54sxDpc9yyKylOmpOFfA7YG6O4m3cZZ2Gp1lyc FrcQ02mDjaeBCMYr/KX1Go+mfn9G0QekUH24jiVBgV+W31+M9TRm980It3L4vXDzLvG8kkWBXI5Xa TT+Nk6BmoX1/+owOkAZ5ELk7GND5ozBHRI46u9FLFII/3Rokfn9eMKEfl7mjbFGCdVTNrhB8wXkVx FZ5lxAKc9VmUNv+q4cwg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWH6A-0007T2-17; Wed, 06 May 2020 10:16:18 +0000 Received: from mail-wm1-x344.google.com ([2a00:1450:4864:20::344]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWH66-0007Re-JU for linux-arm-kernel@lists.infradead.org; Wed, 06 May 2020 10:16:16 +0000 Received: by mail-wm1-x344.google.com with SMTP id u127so1977807wmg.1 for ; Wed, 06 May 2020 03:16:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=cc:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=PS0DJJtvWuHHfB/gb5wiK+AKxn9b2auIGP2Tdd+Xc6I=; b=Lx3XkbsGNc4VdjoTSabW2bJRhuXrArh9dewfOZ8xKEoKDoDNvRPFCNJtrcXLBeLFhq /jcZdrPUfau34vhVt+k6oSo25kYeJx9gAVlyUrT79zxcF9s2lVcrUiArEf3rTsZ+4XAF vlR+1v3iusahOj24FvnNdDFe6mGxIbSQISH+RWlE+uDAr5MvYBlUAsIjHjpGcjJ3Sc5Y 6D9pChrhkFsVV6M05nydrHUfqlY3WYqjWjEE6WwXSaNRYr9qMqODePFJA2CfCghqnWYL k8yqjrUNEYU8qkHQhCeu4amkRWAYT1SmuoN8uvIa81o1gLMa91yB6W9WkDq3T25e5swK TKlg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:cc:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=PS0DJJtvWuHHfB/gb5wiK+AKxn9b2auIGP2Tdd+Xc6I=; b=ILJttsmZRWspWzLP/lsTN4RIpy0cjOhAoP+gtZjObWl5GYoa5Pm8xGtlPOah89FQaJ edwwqurSPZ594TAspR0f+St5UhRJ18n41rUbV6seMJg6+ruwdXfO5B32zSCsd1E0z4yg djOXI/vNXN+iS7MIxqxl0AAVkLUn+0cib3p8mQA2BFztTrkSTJsK+13OT9/qAmirKHdh d5dU43T1JgSieAdHfdTkmsaL5fHmxIMUaIflZ86iqKZrGknqEEvcsNKvuMinzjqNAaVF RiuoZmn47cn1fGewE7QANLuYdC+TQLci48aVwNDh6nNEzVC9/w/dTDaZDvqsodXDNGew SVgg== X-Gm-Message-State: AGi0Pubwx1vrXO1jgLDQ6IJUfERzfp+5P3TNMVlLSNSqtWI/3Ptn3fGP wV67Y9Fn2yu5z5JUqyCplJ7mS+kF X-Google-Smtp-Source: APiQypKK3r/55oUPK8TAeaGZHWQcJDF2vIIMv4dWsYnR7vLm4xlfPl7oghC+AZpwZtof+2deycWcow== X-Received: by 2002:a1c:5403:: with SMTP id i3mr3969583wmb.10.1588760170997; Wed, 06 May 2020 03:16:10 -0700 (PDT) Received: from ?IPv6:2001:a61:2482:101:a081:4793:30bf:f3d5? ([2001:a61:2482:101:a081:4793:30bf:f3d5]) by smtp.gmail.com with ESMTPSA id g24sm2057722wrb.35.2020.05.06.03.16.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 May 2020 03:16:10 -0700 (PDT) Subject: Re: [PATCH 2/2] syscall.2: arm64: Fix syscall number register size To: Dave Martin References: <1588692280-15878-1-git-send-email-Dave.Martin@arm.com> <1588692280-15878-3-git-send-email-Dave.Martin@arm.com> From: "Michael Kerrisk (man-pages)" Message-ID: <82affb91-8aa9-0316-421a-3ce503e396e0@gmail.com> Date: Wed, 6 May 2020 12:16:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <1588692280-15878-3-git-send-email-Dave.Martin@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200506_031614_643445_68058018 X-CRM114-Status: GOOD ( 17.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-man@vger.kernel.org, Catalin Marinas , Russell King , mtk.manpages@gmail.com, Will Deacon , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 5/5/20 5:24 PM, Dave Martin wrote: > arm64 is currently documented as receiving the syscall number in > x8. > > While this is the correct register, the syscall number is a 32-bit > integer. Bits [63:32] are ignored by the kernel. > > So it is more correct to say "w8". Thanks, Dave. Patch applied, with Will's Acked-by. Cheers, Michael > Signed-off-by: Dave Martin > --- > man2/syscall.2 | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/man2/syscall.2 b/man2/syscall.2 > index 53ab40e..d724651 100644 > --- a/man2/syscall.2 > +++ b/man2/syscall.2 > @@ -203,7 +203,7 @@ alpha callsys v0 v0 a4 a3 1, 6 > arc trap0 r8 r0 - - > arm/OABI swi NR - r0 - - 2 > arm/EABI swi 0x0 r7 r0 r1 - > -arm64 svc #0 x8 x0 x1 - > +arm64 svc #0 w8 x0 x1 - > blackfin excpt 0x0 P0 R0 - - > i386 int $0x80 eax eax edx - > ia64 break 0x100000 r15 r8 r9 r10 1, 6 > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel