From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDADFC2BA83 for ; Fri, 14 Feb 2020 19:12:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B57D82465D for ; Fri, 14 Feb 2020 19:12:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581707536; bh=iLQ0bzrCA+KrnRzHd/NmxLab/YgDOlr4I+oInNcSueg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=1R3AR2ieg3zlXJspRd1lAXq9t4nW2wXtrSA2GyE8G4cGEYIUnNrgTpeBXvk/blauA OZyfbFKjTC6w3bTFo9FrgwLgnGIBwrbOfDzlBSg+W21+8A+RdydThHA/pXq89ZDDhQ Xfo9XKdPmMsUuVohRlDJqk1TYwB1I9Hx9s7KlABA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388973AbgBNTMP (ORCPT ); Fri, 14 Feb 2020 14:12:15 -0500 Received: from mail.kernel.org ([198.145.29.99]:49876 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388832AbgBNTMM (ORCPT ); Fri, 14 Feb 2020 14:12:12 -0500 Received: from quaco.ghostprotocols.net (187-26-102-114.3g.claro.net.br [187.26.102.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9A29122314; Fri, 14 Feb 2020 19:12:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581707531; bh=iLQ0bzrCA+KrnRzHd/NmxLab/YgDOlr4I+oInNcSueg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j84iSsoYiZe5rcE6u18tP1c789WychuR1wXLwcOJCWD9wpZeQgER6cJDXCZVskTMe qyMw35BTcfePtgWNO1wxRe2zV98ubfvN1uYytw1GUFQcT4mx699jOVH5CkkT2fsNRe wM4ESmvPH3CE84TWyGSa5waqcIovl18vcP6VztAQ= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , Andrei Vagin Subject: [PATCH 13/23] tools headers UAPI: Sync sched.h with the kernel Date: Fri, 14 Feb 2020 16:10:47 -0300 Message-Id: <20200214191057.26266-14-acme@kernel.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200214191057.26266-1-acme@kernel.org> References: <20200214191057.26266-1-acme@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo To get the changes in: 769071ac9f20 ("ns: Introduce Time Namespace") Silencing this tools/perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h' diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h Which enables 'perf trace' to decode the CLONE_NEWTIME bit in the 'flags' argument to the clone syscalls. Example of clone flags being decoded: [root@quaco ~]# perf trace -e clone* 0.000 qemu-system-x8/23923 clone(clone_flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, newsp: 0x7f0dad7f9870, parent_tidptr: 0x7f0dad7fa9d0, child_tidptr: 0x7f0dad7fa9d0, tls: 0x7f0dad7fa700) = 6806 (qemu-system-x86) ? qemu-system-x8/6806 ... [continued]: clone()) = 0 ^C[root@quaco ~]# At some point this should enable things like: # perf trace -e 'clone*/clone_flags&NEWTIME/' Cc: Adrian Hunter Cc: Andrei Vagin Cc: Jiri Olsa Cc: Namhyung Kim Cc: Thomas Gleixner Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/linux/sched.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/include/uapi/linux/sched.h b/tools/include/uapi/linux/sched.h index 4a0217832464..2e3bc22c6f20 100644 --- a/tools/include/uapi/linux/sched.h +++ b/tools/include/uapi/linux/sched.h @@ -36,6 +36,12 @@ /* Flags for the clone3() syscall. */ #define CLONE_CLEAR_SIGHAND 0x100000000ULL /* Clear any signal handler and reset to SIG_DFL. */ +/* + * cloning flags intersect with CSIGNAL so can be used with unshare and clone3 + * syscalls only: + */ +#define CLONE_NEWTIME 0x00000080 /* New time namespace */ + #ifndef __ASSEMBLY__ /** * struct clone_args - arguments for the clone3 syscall -- 2.21.1