From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752986AbeDDFad (ORCPT ); Wed, 4 Apr 2018 01:30:33 -0400 Received: from terminus.zytor.com ([198.137.202.136]:56561 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751367AbeDDFab (ORCPT ); Wed, 4 Apr 2018 01:30:31 -0400 Date: Tue, 3 Apr 2018 22:30:10 -0700 From: tip-bot for Jiri Olsa Message-ID: Cc: linux-kernel@vger.kernel.org, alexander.shishkin@linux.intel.com, jolsa@kernel.org, kan.liang@intel.com, ak@linux.intel.com, mingo@kernel.org, tglx@linutronix.de, acme@redhat.com, yao.jin@intel.com, peterz@infradead.org, hpa@zytor.com Reply-To: tglx@linutronix.de, acme@redhat.com, linux-kernel@vger.kernel.org, alexander.shishkin@linux.intel.com, jolsa@kernel.org, kan.liang@intel.com, mingo@kernel.org, ak@linux.intel.com, peterz@infradead.org, hpa@zytor.com, yao.jin@intel.com In-Reply-To: <1522402036-22915-2-git-send-email-yao.jin@linux.intel.com> References: <1522402036-22915-2-git-send-email-yao.jin@linux.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/urgent] tools include: Add config.h header file Git-Commit-ID: 6b416ebcc32c5753214d53c18ac5719c93bc340e X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 6b416ebcc32c5753214d53c18ac5719c93bc340e Gitweb: https://git.kernel.org/tip/6b416ebcc32c5753214d53c18ac5719c93bc340e Author: Jiri Olsa AuthorDate: Fri, 30 Mar 2018 17:27:11 +0800 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 2 Apr 2018 13:31:38 -0300 tools include: Add config.h header file Adding IS_BUILTIN macro and its dependencies into tools world. It's taken from kernel's include/linux/kconfig.h, which can't be taken completely due to its kconfig dependencies. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jin Yao Cc: Kan Liang Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1522402036-22915-2-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/tools/config.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tools/include/tools/config.h b/tools/include/tools/config.h new file mode 100644 index 000000000000..08ade7df8132 --- /dev/null +++ b/tools/include/tools/config.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _TOOLS_CONFIG_H +#define _TOOLS_CONFIG_H + +/* Subset of include/linux/kconfig.h */ + +#define __ARG_PLACEHOLDER_1 0, +#define __take_second_arg(__ignored, val, ...) val + +/* + * Helper macros to use CONFIG_ options in C/CPP expressions. Note that + * these only work with boolean and tristate options. + */ + +/* + * Getting something that works in C and CPP for an arg that may or may + * not be defined is tricky. Here, if we have "#define CONFIG_BOOGER 1" + * we match on the placeholder define, insert the "0," for arg1 and generate + * the triplet (0, 1, 0). Then the last step cherry picks the 2nd arg (a one). + * When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when + * the last step cherry picks the 2nd arg, we get a zero. + */ +#define __is_defined(x) ___is_defined(x) +#define ___is_defined(val) ____is_defined(__ARG_PLACEHOLDER_##val) +#define ____is_defined(arg1_or_junk) __take_second_arg(arg1_or_junk 1, 0) + +/* + * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0 + * otherwise. For boolean options, this is equivalent to + * IS_ENABLED(CONFIG_FOO). + */ +#define IS_BUILTIN(option) __is_defined(option) + +#endif /* _TOOLS_CONFIG_H */