From patchwork Fri Aug 19 21:41:12 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Chamberlain X-Patchwork-Id: 9291121 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DBA0D607FF for ; Fri, 19 Aug 2016 21:41:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5060295A6 for ; Fri, 19 Aug 2016 21:41:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C7CED295AD; Fri, 19 Aug 2016 21:41:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72199295A6 for ; Fri, 19 Aug 2016 21:41:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755725AbcHSVli (ORCPT ); Fri, 19 Aug 2016 17:41:38 -0400 Received: from mail.kernel.org ([198.145.29.136]:43644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755721AbcHSVlg (ORCPT ); Fri, 19 Aug 2016 17:41:36 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 468FD2026D; Fri, 19 Aug 2016 21:41:34 +0000 (UTC) Received: from garbanzo.do-not-panic.com (c-73-15-241-2.hsd1.ca.comcast.net [73.15.241.2]) (using TLSv1.2 with cipher AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2D2AC20114; Fri, 19 Aug 2016 21:41:31 +0000 (UTC) From: mcgrof@kernel.org To: acme@redhat.com, hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com, jpoimboe@redhat.com, bp@alien8.de, linux@arm.linux.org.uk, mhiramat@kernel.org, masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com, heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com, anil.s.keshavamurthy@intel.com, davem@davemloft.net, realmz6@gmail.com Cc: x86@kernel.org, luto@amacapital.net, keescook@chromium.org, torvalds@linux-foundation.org, gregkh@linuxfoundation.org, rusty@rustcorp.com.au, gnomes@lxorguk.ukuu.org.uk, alan@linux.intel.com, dwmw2@infradead.org, arnd@arndb.de, ming.lei@canonical.com, linux-arch@vger.kernel.org, benh@kernel.crashing.org, ananth@in.ibm.com, pebolle@tiscali.nl, fontana@sharpeleven.org, david.vrabel@citrix.com, konrad.wilk@oracle.com, mcb30@ipxe.org, jgross@suse.com, andrew.cooper3@citrix.com, andriy.shevchenko@linux.intel.com, paul.gortmaker@windriver.com, xen-devel@lists.xensource.com, ak@linux.intel.com, pali.rohar@gmail.com, dvhart@infradead.org, platform-driver-x86@vger.kernel.org, mmarek@suse.com, linux@rasmusvillemoes.dk, jkosina@suse.cz, korea.drzix@gmail.com, linux-kbuild@vger.kernel.org, tony.luck@intel.com, akpm@linux-foundation.org, linux-ia64@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, rostedt@goodmis.org, jani.nikula@intel.com, mchehab@osg.samsung.com, markus.heiser@darmarit.de, jolsa@kernel.org, msalter@redhat.com, chris@zankel.net, jcmvbkbc@gmail.com, linux-xtensa@linux-xtensa.org, paulus@samba.org, mpe@ellerman.id.au, James.Bottomley@HansenPartnership.com, "Luis R. Rodriguez" Subject: [PATCH v1 4/7] tools: add __used and enable to override Date: Fri, 19 Aug 2016 14:41:12 -0700 Message-Id: <1471642875-5957-5-git-send-email-mcgrof@kernel.org> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1471642875-5957-1-git-send-email-mcgrof@kernel.org> References: <1471642454-5679-1-git-send-email-mcgrof@kernel.org> <1471642875-5957-1-git-send-email-mcgrof@kernel.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: "Luis R. Rodriguez" This adds __used, to be used later in the userspace linker-tables sandbox. If any userspace applicaiton wants to override they can add their own definition and then use include_next. This definition should probably suffice for most uses cases though. Signed-off-by: Luis R. Rodriguez --- tools/include/linux/compiler.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index e33fc1df3935..556c991de212 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -5,6 +5,12 @@ /* The "volatile" is due to gcc bugs */ #define barrier() __asm__ __volatile__("": : :"memory") + +/* You can override as you see fit on your userspace tool */ +#ifndef __used +#define __used __attribute__((__used__)) +#endif + #ifndef __always_inline # define __always_inline inline __attribute__((always_inline)) #endif