From patchwork Tue Mar 28 23:52:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Beau Belgrave X-Patchwork-Id: 76318 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp55762vqo; Tue, 28 Mar 2023 17:11:25 -0700 (PDT) X-Google-Smtp-Source: AK7set8ahOCHpzi4YOGp2KMHjqrCJBlfS3CIPnE3mOKfB7f5jHFvDr52+yjoDjuMCXD54svYPM97 X-Received: by 2002:a62:1858:0:b0:628:1638:441f with SMTP id 85-20020a621858000000b006281638441fmr14147123pfy.26.1680048684798; Tue, 28 Mar 2023 17:11:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1680048684; cv=none; d=google.com; s=arc-20160816; b=vJtPdoiVe0d0tLYn1bL9+V7CpamHCrgRBcRcG/gJQP2i6m3aED1S1qmPldQRWFdRN5 XCUZPGcvmykF/2OnkX0DNdwKxTo9Ems+qt+KwwU6tSRh+D+S4Vhjuedm2pdI8X8eCJd2 e/uOC80c9Dtz5umRTFQqzWFqHHnS+x19fahQ0OJyyTNli0h0AQ5Rkmcdla8px8JG6IWo U6cWdy9lwgmST+OeyBCr4IczKGCaIp1LhEJhAMPwouuUxDGR2lt3BCH+ogjG0ZsnNj7Z zARN6lH7Fj5gb8fmCvtcPICvescolDoo92Mg7oMvMCUg2GTqTqXcxmJfhP0vVLZeoQpF IaHg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:dkim-filter; bh=OSmDP26J8YzoMhJc3UKK7slznwSGVE3KNwggNF1IdJc=; b=JfyuR+Fcl3ha8Hp68ocxvxM+Bp5VzHzrKsbahhbVPxb+04JcN6AypW0ODC0dPX9Gz4 ioCJmXiHhavZWFRWMacto6s7wPoT1MhxVsdkwXHzJMv9vGMutfu70vwQvpVSY3U1XYaH cgvNSvV4a24eBFYnBYXb28dFE6DoEVScXOgSSXJmlg1kic8UlopVms8Hk4is4NOrfxn1 LvsFZGbNowdKnNJpUpY63gQvEr59N37YGWaaaSQeotkjx41iN2Hbk94SdzSfZ3zM9rnv 8t/39an2+fxLW4cXI935lNbWHJQtkGhleMqRGAp1JCNKYwI7IPr7Ywt3XXhnlEUiNcyT vERQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linux.microsoft.com header.s=default header.b=G6twUb0k; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linux.microsoft.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id x6-20020aa78f06000000b0062d86a153e6si4699480pfr.151.2023.03.28.17.11.12; Tue, 28 Mar 2023 17:11:24 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linux.microsoft.com header.s=default header.b=G6twUb0k; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linux.microsoft.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229782AbjC1Xwb (ORCPT + 99 others); Tue, 28 Mar 2023 19:52:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229539AbjC1Xw1 (ORCPT ); Tue, 28 Mar 2023 19:52:27 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id CC1482D44; Tue, 28 Mar 2023 16:52:25 -0700 (PDT) Received: from W11-BEAU-MD.localdomain (unknown [76.135.27.212]) by linux.microsoft.com (Postfix) with ESMTPSA id BFB5920FDAA3; Tue, 28 Mar 2023 16:52:24 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com BFB5920FDAA3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1680047545; bh=OSmDP26J8YzoMhJc3UKK7slznwSGVE3KNwggNF1IdJc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G6twUb0ke7eK5ynz9/PeHHdyqh6KQ95zr0iOHhkyuxOiVKml3Xc5Fptvp8sR+DX9z HbY+oR9AqNC+ixwArDWbmpgy9CbMHTMw45k8BgakrhTAN7tbRtHxDCy1121cQ7VOB9 6piQBcmQptm2Bl1DBPVjQQwn+jIkf6LcGJAezy2M= From: Beau Belgrave To: rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, dcook@linux.microsoft.com, alanau@linux.microsoft.com, brauner@kernel.org, akpm@linux-foundation.org, ebiederm@xmission.com, keescook@chromium.org, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH v10 01/12] tracing/user_events: Split header into uapi and kernel Date: Tue, 28 Mar 2023 16:52:08 -0700 Message-Id: <20230328235219.203-2-beaub@linux.microsoft.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230328235219.203-1-beaub@linux.microsoft.com> References: <20230328235219.203-1-beaub@linux.microsoft.com> MIME-Version: 1.0 X-Spam-Status: No, score=-17.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_MED,SPF_HELO_PASS, SPF_PASS,USER_IN_DEF_DKIM_WL,USER_IN_DEF_SPF_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761658729623559534?= X-GMAIL-MSGID: =?utf-8?q?1761658729623559534?= The UAPI parts need to be split out from the kernel parts of user_events now that other parts of the kernel will reference it. Do so by moving the existing include/linux/user_events.h into include/uapi/linux/user_events.h. Signed-off-by: Beau Belgrave --- include/linux/user_events.h | 52 ++++---------------------------- include/uapi/linux/user_events.h | 48 +++++++++++++++++++++++++++++ kernel/trace/trace_events_user.c | 5 --- 3 files changed, 54 insertions(+), 51 deletions(-) create mode 100644 include/uapi/linux/user_events.h diff --git a/include/linux/user_events.h b/include/linux/user_events.h index 592a3fbed98e..13689589d36e 100644 --- a/include/linux/user_events.h +++ b/include/linux/user_events.h @@ -1,54 +1,14 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * Copyright (c) 2021, Microsoft Corporation. + * Copyright (c) 2022, Microsoft Corporation. * * Authors: * Beau Belgrave */ -#ifndef _UAPI_LINUX_USER_EVENTS_H -#define _UAPI_LINUX_USER_EVENTS_H -#include -#include +#ifndef _LINUX_USER_EVENTS_H +#define _LINUX_USER_EVENTS_H -#ifdef __KERNEL__ -#include -#else -#include -#endif +#include -#define USER_EVENTS_SYSTEM "user_events" -#define USER_EVENTS_PREFIX "u:" - -/* Create dynamic location entry within a 32-bit value */ -#define DYN_LOC(offset, size) ((size) << 16 | (offset)) - -/* - * Describes an event registration and stores the results of the registration. - * This structure is passed to the DIAG_IOCSREG ioctl, callers at a minimum - * must set the size and name_args before invocation. - */ -struct user_reg { - - /* Input: Size of the user_reg structure being used */ - __u32 size; - - /* Input: Pointer to string with event name, description and flags */ - __u64 name_args; - - /* Output: Bitwise index of the event within the status page */ - __u32 status_bit; - - /* Output: Index of the event to use when writing data */ - __u32 write_index; -} __attribute__((__packed__)); - -#define DIAG_IOC_MAGIC '*' - -/* Requests to register a user_event */ -#define DIAG_IOCSREG _IOWR(DIAG_IOC_MAGIC, 0, struct user_reg*) - -/* Requests to delete a user_event */ -#define DIAG_IOCSDEL _IOW(DIAG_IOC_MAGIC, 1, char*) - -#endif /* _UAPI_LINUX_USER_EVENTS_H */ +#endif /* _LINUX_USER_EVENTS_H */ diff --git a/include/uapi/linux/user_events.h b/include/uapi/linux/user_events.h new file mode 100644 index 000000000000..03f92366068d --- /dev/null +++ b/include/uapi/linux/user_events.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (c) 2021-2022, Microsoft Corporation. + * + * Authors: + * Beau Belgrave + */ +#ifndef _UAPI_LINUX_USER_EVENTS_H +#define _UAPI_LINUX_USER_EVENTS_H + +#include +#include + +#define USER_EVENTS_SYSTEM "user_events" +#define USER_EVENTS_PREFIX "u:" + +/* Create dynamic location entry within a 32-bit value */ +#define DYN_LOC(offset, size) ((size) << 16 | (offset)) + +/* + * Describes an event registration and stores the results of the registration. + * This structure is passed to the DIAG_IOCSREG ioctl, callers at a minimum + * must set the size and name_args before invocation. + */ +struct user_reg { + + /* Input: Size of the user_reg structure being used */ + __u32 size; + + /* Input: Pointer to string with event name, description and flags */ + __u64 name_args; + + /* Output: Bitwise index of the event within the status page */ + __u32 status_bit; + + /* Output: Index of the event to use when writing data */ + __u32 write_index; +} __attribute__((__packed__)); + +#define DIAG_IOC_MAGIC '*' + +/* Request to register a user_event */ +#define DIAG_IOCSREG _IOWR(DIAG_IOC_MAGIC, 0, struct user_reg *) + +/* Request to delete a user_event */ +#define DIAG_IOCSDEL _IOW(DIAG_IOC_MAGIC, 1, char *) + +#endif /* _UAPI_LINUX_USER_EVENTS_H */ diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c index 908e8a13c675..070551480747 100644 --- a/kernel/trace/trace_events_user.c +++ b/kernel/trace/trace_events_user.c @@ -19,12 +19,7 @@ #include #include #include -/* Reminder to move to uapi when everything works */ -#ifdef CONFIG_COMPILE_TEST #include -#else -#include -#endif #include "trace.h" #include "trace_dynevent.h"