From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2a07:de40:b251:101:10:150:64:1]) by sourceware.org (Postfix) with ESMTPS id 338043858D38 for ; Tue, 6 Feb 2024 15:04:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 338043858D38 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 338043858D38 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2a07:de40:b251:101:10:150:64:1 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1707231856; cv=none; b=aO3XdD22I8hXXhxu5klS0VM1KZs5FmBZpyTe3WlP8zuAee6SdCcImLGtU6G5vFbZaJiz554aTN6rWGTn641pAoYOWoXwwTjG+uyH4rx8gFxWKxMw4OcKWnij3Ans+YXFpnod4EFU8vnRqBbInM+mIum6lSOdTppqWeGv43Dy+zM= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1707231856; c=relaxed/simple; bh=+WwrIcwezhpLsrb6S0Aziu38Ck2ICzPAhFpuGS+RNL0=; h=DKIM-Signature:DKIM-Signature:DKIM-Signature:DKIM-Signature:Date: From:To:Subject:Message-ID:MIME-Version; b=Zuu+xZtoDEo0EmsUNc868win4uS3o/ALBYzQNaO31GiL3ta04jN9XsjdQf8gYPrDM6riVhRvFd85kQra4+6s0myw8i7J5nSCLYdMXs8CshZTW3Zg6E9ThLHm3jsqvqWJTU2iUg6JN/Z1Uiq2H9mhxjNccrWv+UXYjuhEKaTYXfA= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from knuth.suse.de (unknown [10.168.5.16]) by smtp-out1.suse.de (Postfix) with ESMTP id 24DEB21ED4; Tue, 6 Feb 2024 15:04:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1707231851; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JAGQlslbRue/zNa+XVx6RLUiDfeea5V16BkDQ76poso=; b=Ug7rSrYwMaa3JeCNuJTZDO6UE9lWGeEpmsAIPytBMpsL2Q9nbIFAdtnzaFcHkoAjP3qhno 0E1MsvJRwhTzwqm+07CMi4qIH0VxzY9ZMiomOhTDQYMRBy2Q3VgDo05rEnC03FGWs/otHz ssrN9gwWu9r3+0U3dxNTR2Go1SVqG2s= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1707231851; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JAGQlslbRue/zNa+XVx6RLUiDfeea5V16BkDQ76poso=; b=VLBg6UOyDwDZuD2fFJhy3kHDDsyThI4RDqAX1cQe2LNcO1+XSb+tFlTFOMVpt72HsuId3X Zw5WUjCP5BR4bDCQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1707231851; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JAGQlslbRue/zNa+XVx6RLUiDfeea5V16BkDQ76poso=; b=Ug7rSrYwMaa3JeCNuJTZDO6UE9lWGeEpmsAIPytBMpsL2Q9nbIFAdtnzaFcHkoAjP3qhno 0E1MsvJRwhTzwqm+07CMi4qIH0VxzY9ZMiomOhTDQYMRBy2Q3VgDo05rEnC03FGWs/otHz ssrN9gwWu9r3+0U3dxNTR2Go1SVqG2s= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1707231851; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JAGQlslbRue/zNa+XVx6RLUiDfeea5V16BkDQ76poso=; b=VLBg6UOyDwDZuD2fFJhy3kHDDsyThI4RDqAX1cQe2LNcO1+XSb+tFlTFOMVpt72HsuId3X Zw5WUjCP5BR4bDCQ== Received: by knuth.suse.de (Postfix, from userid 10510) id 1C6ED32A417; Tue, 6 Feb 2024 16:04:11 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by knuth.suse.de (Postfix) with ESMTP id 1B4FB32A416; Tue, 6 Feb 2024 16:04:11 +0100 (CET) Date: Tue, 6 Feb 2024 16:04:11 +0100 (CET) From: Michael Matz To: "H.J. Lu" cc: Jan Beulich , binutils@sourceware.org Subject: Re: [PATCH] x86: Warn .insn instruction with length > 15 bytes In-Reply-To: Message-ID: <8059bdee-392a-b9cd-41d5-8dea538c957c@suse.de> References: <20240205200028.219844-1-hjl.tools@gmail.com> <4b1c3da8-d218-460b-89e6-6844096ed393@suse.com> <533a896f-8eec-b73b-cb18-26240ad822fc@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Authentication-Results: smtp-out1.suse.de; none X-Spam-Level: X-Spam-Score: -1.20 X-Spamd-Result: default: False [-1.20 / 50.00]; TO_DN_SOME(0.00)[]; NEURAL_HAM_SHORT(-0.20)[-0.993]; FREEMAIL_TO(0.00)[gmail.com]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; BAYES_HAM(-0.00)[34.59%]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-1.00)[-1.000]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_TWO(0.00)[2] X-Spam-Status: No, score=-3.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: > > > > I disagree. It was a warning until you changed it (without me really > > > > agreeing), and some hypothetical vendor could come and lift the limit, > > > > on precisely the basis that there are legal encodings exceeding it. I'm > > > > okay if this can be forced to be an error, but I continue to think that > > > > it ought to be a warning only by default. > > > > > > > > > > It is an error on both Intel and AMD processors. There is no > > > valid reason not to be an error at the moment. > > > > Jan gave you one. I would prefer for the assembler to not be anally > > That is not a valid reason. Yes it is. > There is no such processor in the foreseeable future. Doesn't matter. Ciao, Michael.