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 8DBA9C28CBC for ; Wed, 6 May 2020 10:05:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 68A742073A for ; Wed, 6 May 2020 10:05:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YvZHQ2cJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728624AbgEFKFF (ORCPT ); Wed, 6 May 2020 06:05:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728614AbgEFKFE (ORCPT ); Wed, 6 May 2020 06:05:04 -0400 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 75A8DC061A0F for ; Wed, 6 May 2020 03:05:04 -0700 (PDT) Received: by mail-wr1-x443.google.com with SMTP id h9so1491215wrt.0 for ; Wed, 06 May 2020 03:05:04 -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=NxZqzWyEj0NmstSGm40xlfZ/BVYKGfWkncwyeDK+Wnc=; b=YvZHQ2cJwfn9kiQ40TOGasnK5VDEtv6DIUkzD+dGvO00Xb/tZgL46RZwgQQhXg208U WjPFQjC43OTwbWlf3EVe0vmPFWHClz9QXjDy1kEfAUnWip5DVpZrHnE/eZFFzpGY+T/o CiZko+LxoIyGmaPkdQdGDjFkWgCLVKHsdvjlRIQYomNi0jf2XfKXTkH2/H+uvqj1zvoe /sZXMvuWnVehc43zaO4CQOPcXmYMycE5mGiIE3nULFEtGA3BHNqi2XK5+wnankebtJvA Dqo2BAxYdyRKKZnAFjgpWL6hmfOiGYKrS/4AXV8sWIlxB2+KAGVafjnKp/f+io+2zgul gRvA== 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=NxZqzWyEj0NmstSGm40xlfZ/BVYKGfWkncwyeDK+Wnc=; b=A5SkxsD52UBIztNG09FoHEsNaPK5rKQ6yefKRggo1wIm84BAHJ3waRZR0dJPqWXYvP JNR5nMOXKG8am6eWKEoTcwtT50NWt91iK29yO9bdtZI0jmx1BdursC0S3XyTcfXV+EeL fMH0I0h+JJV14Q0lAEgeufEjTkqXfbVfYAq/XmP3IztwpObsVQkvEANYGj3rLGbY9dsc YlCxcPMCw1z4Z3JCHMvFdSp+7vtKKrNarZBhxTTfM6DSYay81VVccCa2R24nU2amTebV dI8AyUxLQDm7x0M4xaxHARthbOnERkfQNu3OctmXvm7Wp533ZCX3QR5KVYU0ld2u7b5B nLKA== X-Gm-Message-State: AGi0Pub2QLGLedqyRCO84abEyjgZ8/p0paeb65Fgy2Wmxq0Qki0g37o2 iUN4B4jzyOk1aT4shDE6FgM= X-Google-Smtp-Source: APiQypJFVKH6FR4lDoS4yRXAF+COQ6L3cC0ZlAl0JudzrcF7KI7gSy9tcwkBp/Ze5II+f50b4ED9gA== X-Received: by 2002:a5d:4005:: with SMTP id n5mr8537915wrp.242.1588759503213; Wed, 06 May 2020 03:05:03 -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 c25sm2195384wmb.44.2020.05.06.03.05.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 May 2020 03:05:02 -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 1/2] syscall.2: arm: Use real register names for arm/OABI To: Dave Martin References: <1588692280-15878-1-git-send-email-Dave.Martin@arm.com> <1588692280-15878-2-git-send-email-Dave.Martin@arm.com> From: "Michael Kerrisk (man-pages)" Message-ID: <9c75b89f-be1e-52a7-e98c-46b7dfe89d1d@gmail.com> Date: Wed, 6 May 2020 12:05:00 +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: <1588692280-15878-2-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: > The arm OABI syscall interface is currently documented in terms of > register name aliases defined by the ARM Procedure Call Standard > (APCS). However, these don't make sense in the context of a binary > interface that doesn't comply (or need to comply) with APCS. > > Use the real architectural register names instead. > > The names a1-a4, v1... are just aliases for r0-r3, r4... anyway, so > the interface is just the same regardless of which set of names is > used. > > Signed-off-by: Dave Martin Thanks, Dave. Patch applied, with Russell's Acked-by added. Cheers, Michael > --- > man2/syscall.2 | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/man2/syscall.2 b/man2/syscall.2 > index f2b277b..53ab40e 100644 > --- a/man2/syscall.2 > +++ b/man2/syscall.2 > @@ -201,7 +201,7 @@ Arch/ABI Instruction System Ret Ret Error Notes > _ > alpha callsys v0 v0 a4 a3 1, 6 > arc trap0 r8 r0 - - > -arm/OABI swi NR - a1 - - 2 > +arm/OABI swi NR - r0 - - 2 > arm/EABI swi 0x0 r7 r0 r1 - > arm64 svc #0 x8 x0 x1 - > blackfin excpt 0x0 P0 R0 - - > @@ -332,7 +332,7 @@ Arch/ABI arg1 arg2 arg3 arg4 arg5 arg6 arg7 Notes > _ > alpha a0 a1 a2 a3 a4 a5 - > arc r0 r1 r2 r3 r4 r5 - > -arm/OABI a1 a2 a3 a4 v1 v2 v3 > +arm/OABI r0 r1 r2 r3 r4 r5 r6 > arm/EABI r0 r1 r2 r3 r4 r5 r6 > arm64 x0 x1 x2 x3 x4 x5 - > blackfin R0 R1 R2 R3 R4 R5 - > -- 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 CC398C38A24 for ; 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([2001:a61:2482:101:a081:4793:30bf:f3d5]) by smtp.gmail.com with ESMTPSA id c25sm2195384wmb.44.2020.05.06.03.05.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 May 2020 03:05:02 -0700 (PDT) Subject: Re: [PATCH 1/2] syscall.2: arm: Use real register names for arm/OABI To: Dave Martin References: <1588692280-15878-1-git-send-email-Dave.Martin@arm.com> <1588692280-15878-2-git-send-email-Dave.Martin@arm.com> From: "Michael Kerrisk (man-pages)" Message-ID: <9c75b89f-be1e-52a7-e98c-46b7dfe89d1d@gmail.com> Date: Wed, 6 May 2020 12:05:00 +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: <1588692280-15878-2-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_030505_521551_1F96417F X-CRM114-Status: GOOD ( 18.02 ) 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: > The arm OABI syscall interface is currently documented in terms of > register name aliases defined by the ARM Procedure Call Standard > (APCS). However, these don't make sense in the context of a binary > interface that doesn't comply (or need to comply) with APCS. > > Use the real architectural register names instead. > > The names a1-a4, v1... are just aliases for r0-r3, r4... anyway, so > the interface is just the same regardless of which set of names is > used. > > Signed-off-by: Dave Martin Thanks, Dave. Patch applied, with Russell's Acked-by added. Cheers, Michael > --- > man2/syscall.2 | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/man2/syscall.2 b/man2/syscall.2 > index f2b277b..53ab40e 100644 > --- a/man2/syscall.2 > +++ b/man2/syscall.2 > @@ -201,7 +201,7 @@ Arch/ABI Instruction System Ret Ret Error Notes > _ > alpha callsys v0 v0 a4 a3 1, 6 > arc trap0 r8 r0 - - > -arm/OABI swi NR - a1 - - 2 > +arm/OABI swi NR - r0 - - 2 > arm/EABI swi 0x0 r7 r0 r1 - > arm64 svc #0 x8 x0 x1 - > blackfin excpt 0x0 P0 R0 - - > @@ -332,7 +332,7 @@ Arch/ABI arg1 arg2 arg3 arg4 arg5 arg6 arg7 Notes > _ > alpha a0 a1 a2 a3 a4 a5 - > arc r0 r1 r2 r3 r4 r5 - > -arm/OABI a1 a2 a3 a4 v1 v2 v3 > +arm/OABI r0 r1 r2 r3 r4 r5 r6 > arm/EABI r0 r1 r2 r3 r4 r5 r6 > arm64 x0 x1 x2 x3 x4 x5 - > blackfin R0 R1 R2 R3 R4 R5 - > -- 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