Received: by 10.192.165.148 with SMTP id m20csp1079137imm; Wed, 2 May 2018 13:46:28 -0700 (PDT) X-Google-Smtp-Source: AB8JxZqeMt40Qq3YV/IKk82mXdiaULNlM2WQoIBi+k1KnTPDj3BLsgMyuaeHr+7jEX8PhrDDYTZt X-Received: by 10.98.29.82 with SMTP id d79mr20697975pfd.230.1525293988237; Wed, 02 May 2018 13:46:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1525293988; cv=none; d=google.com; s=arc-20160816; b=uvV20DZ4UGkR3eygqAJhorVVQWNIhrrdeY4WZIsvcrujSEy/GmpT6qPGvyP6lcXBb7 uYf7WVSCfDhwX7w5GGYeuJcfjexfUWiXGcAL/gJEZFFFQx2dy8cw7mWOoh8qFUtVCQu9 xqoLlydccGIspIvW57YPu7DJkqUeUu7DYtbjHoV95/NWQm87wbG1bTRmHJRNUgW+Tmfp cAT7KI6KlnUtpXvB6kHxCmu/uOdJfCYIZMeiyWBRe3XvW07zp94wWsS9LBbGuDqh/TjL sTN9P864vUyGOCdTNspfL5Wvk4a7Tu+HsS6NaSvRJfxj0oXgQu+FNWjo1PwYtvHPTuo0 zq6w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date :arc-authentication-results; bh=6Y7A4rZtgINroGhIpKxxQ2Qf+q4RP25Xo2KEyf59z5w=; b=qnjF39eYLfzYEChxAsPNBiNkyWLBHdq2ICySxIfb/vu/05tue4A0DE/CGBU4XxLwK4 yqKm1kxR+M0OUEk3I4ifS2ePOvp8m4FA6WITrWSR4MIdNwQnWRGcBbfDOyJRvDLyncX7 /NbKF9Kr6Vosk9fHlQ76jIvNipAQ9K+FphK70GuIc+6S+PFQ5vPxv29cg/+7ZREv/HHX x8Y1TfYrR5xQTIM5xxKw4FKk3+gEVsJUy9Y7aMc4H9n1fqdwRogHuWj+ebOnFLRFHNVV hIpbT/cLMd2CdhYFF0etAxqqeZFyPCgkcWqSAoBDiC8Oypo5AlLSnEhKki9oTJDVxMpa 3pew== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y8-v6si12185050pli.242.2018.05.02.13.46.13; Wed, 02 May 2018 13:46:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751527AbeEBUqG (ORCPT + 99 others); Wed, 2 May 2018 16:46:06 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:43146 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751261AbeEBUqA (ORCPT ); Wed, 2 May 2018 16:46:00 -0400 Received: from akpm3.svl.corp.google.com (unknown [104.133.9.71]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 542493EE; Wed, 2 May 2018 20:45:59 +0000 (UTC) Date: Wed, 2 May 2018 13:45:58 -0700 From: Andrew Morton To: Steven Rostedt Cc: changbin.du@intel.com, yamada.masahiro@socionext.com, michal.lkml@markovi.net, tglx@linutronix.de, mingo@redhat.com, rdunlap@infradead.org, x86@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, arnd@arndb.de, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: Re: [PATCH v2 4/5] kernel hacking: new config DEBUG_EXPERIENCE to apply GCC -Og optimization Message-Id: <20180502134558.1f388e097dcde6f589635404@linux-foundation.org> In-Reply-To: <20180502101707.206984e9@gandalf.local.home> References: <1525268700-10631-1-git-send-email-changbin.du@intel.com> <1525268700-10631-5-git-send-email-changbin.du@intel.com> <20180502101707.206984e9@gandalf.local.home> X-Mailer: Sylpheed 3.6.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2 May 2018 10:17:07 -0400 Steven Rostedt wrote: > > Comparison of vmlinux size: a bit smaller. > > > > w/o CONFIG_DEBUG_EXPERIENCE > > I hate the config name. > > I probably can't come up with better ones but let's try: > > CONFIG_DEBUG_OPTIMIZE ? > CONFIG_OPTIMIZE_DEBUG ? > > But "EXPERIENCE" sounds like I'm on some DEBUG LSD. Metoo, but the gcc people decided on "-Og: Optimize debugging experience ..." and I think there are benefits if the kernel is to align the naming with that.