Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754313Ab3HESt6 (ORCPT ); Mon, 5 Aug 2013 14:49:58 -0400 Received: from mail-ve0-f176.google.com ([209.85.128.176]:63464 "EHLO mail-ve0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752753Ab3HESt5 (ORCPT ); Mon, 5 Aug 2013 14:49:57 -0400 MIME-Version: 1.0 In-Reply-To: <1375727977.22073.112.camel@gandalf.local.home> References: <1375721715.22073.80.camel@gandalf.local.home> <1375725328.22073.101.camel@gandalf.local.home> <1375727977.22073.112.camel@gandalf.local.home> Date: Mon, 5 Aug 2013 11:49:56 -0700 X-Google-Sender-Auth: HtCcPvgK2Ts2V9ztOFQG9Zy8Il0 Message-ID: Subject: Re: [RFC] gcc feature request: Moving blocks into sections From: Linus Torvalds To: Steven Rostedt Cc: LKML , gcc , Ingo Molnar , Mathieu Desnoyers , "H. Peter Anvin" , Thomas Gleixner , David Daney , Behan Webster , Peter Zijlstra , Herbert Xu Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 888 Lines: 23 On Mon, Aug 5, 2013 at 11:39 AM, Steven Rostedt wrote: > > I had patches that did exactly this: > > https://lkml.org/lkml/2012/3/8/461 > > But it got dropped for some reason. I don't remember why. Maybe because > of the complexity? Ugh. Why the crazy update_jump_label script stuff? I'd go "Eww" at that too, it looks crazy. The assembler already knows to make short 2-byte "jmp" instructions for near jumps, and you can just look at the opcode itself to determine size, why is all that other stuff required? IOW, 5/7 looks sane, but 4/7 makes me go "there's something wrong with that series". Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/