From patchwork Tue Jun 16 10:39:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Filip Bozuta X-Patchwork-Id: 1310231 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=syrmia.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=syrmia.com header.i=@syrmia.com header.a=rsa-sha256 header.s=selector1 header.b=Yz6XLp+8; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49mPs15Cvzz9sRh for ; Tue, 16 Jun 2020 20:41:57 +1000 (AEST) Received: from localhost ([::1]:55734 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jl92R-0001OV-DE for incoming@patchwork.ozlabs.org; Tue, 16 Jun 2020 06:41:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60158) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jl90T-0006wM-5G for qemu-devel@nongnu.org; Tue, 16 Jun 2020 06:39:53 -0400 Received: from mail-db8eur05on2134.outbound.protection.outlook.com ([40.107.20.134]:62689 helo=EUR05-DB8-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jl90R-0002xj-EQ for qemu-devel@nongnu.org; Tue, 16 Jun 2020 06:39:52 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=gwTasGX//spULDwOFfCOJWyI1iWBoobQAnqLtRWMGoBly/g4ru0IyMT94+xHPtHFpQVwwVqRguIrzh2IaZ21irIi7kWpvFZAx0UOApzNnp5ERS9W9TUZcsU/yvgYa5yS3/00Pg7IDrRP23MSeTjZTcgVdU/xVlx9i/IunI076Kx3sXsVz0xy/0yD6qweA3wQm5TT6U+jOP/2UFaN3Y+Aa4iDpmDjVJVXPs2YjJc4FGq82l0UNOAIqTOaAO7r+0DpSYpQsIBbEq4J7JCNqq/ughx5Nh+h6gDjX2Xf/h3EiBADPnwU2gxupcQ/WOSmDf6rz8JUYbVAdO0o8y8OxnRYjQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4wAkJOpp4vVJfx2IroOpDJITNyxXboEoL4zNW1eRyqo=; b=Ve9iY54t3G4YajDCN/eTpULwtnGBgXst9d/LPrTi9wclquKShKHu0b+QYcqEJ4l20hyWsGM9hYa79tuhG9vdIjM5s7fJ3oym3pGOZpWWVmudp+WhWn3MvWllkhrwl/BjrH6U6YnBdrScaap9kSwTlYTSYxeaa7VEOhgv/nReYYKlMix2E8ZeSHwQnjhKjzYHYl/UMkPfhB9p4/7CIM31zeLxi4MTI/4UEMFukTGWA2x/ogbJPTuhWNNh6g6hRsjMjUaaL8qW9kTcvMnCdHgfnZJJ9CVh3ubTvUhTtHlc9JmKoi4rdV2P2KM9i8K6iiF2OxFA8qoZmY1kOfEsLc0ruQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=syrmia.com; dmarc=pass action=none header.from=syrmia.com; dkim=pass header.d=syrmia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=syrmia.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4wAkJOpp4vVJfx2IroOpDJITNyxXboEoL4zNW1eRyqo=; b=Yz6XLp+8X0Bi3Y0qmdvfN397giN+waxpit0q85/jwArzd2Yj0xkpsIlOyrTR5U8SctY3DwRB7h62h7rqdojts9D2eUOoHYIjtlRYE9dS+olQb4+/tlhC+vbOJzy6rhcwL8EQRAEz9b3MTWTtr9z6xiMoXZxn34igqbpyejk/sEI= Authentication-Results: nongnu.org; dkim=none (message not signed) header.d=none;nongnu.org; dmarc=none action=none header.from=syrmia.com; Received: from AM6PR03MB5233.eurprd03.prod.outlook.com (2603:10a6:20b:d1::19) by AM6PR03MB3960.eurprd03.prod.outlook.com (2603:10a6:20b:25::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3088.21; Tue, 16 Jun 2020 10:39:42 +0000 Received: from AM6PR03MB5233.eurprd03.prod.outlook.com ([fe80::98f0:b948:78a8:f618]) by AM6PR03MB5233.eurprd03.prod.outlook.com ([fe80::98f0:b948:78a8:f618%7]) with mapi id 15.20.3088.029; Tue, 16 Jun 2020 10:39:43 +0000 From: Filip Bozuta To: qemu-devel@nongnu.org Subject: [PATCH v4 4/6] linux-user: Add strace support for printing arguments of lseek() Date: Tue, 16 Jun 2020 12:39:25 +0200 Message-Id: <20200616103927.20222-5-filip.bozuta@syrmia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200616103927.20222-1-filip.bozuta@syrmia.com> References: <20200616103927.20222-1-filip.bozuta@syrmia.com> X-ClientProxiedBy: ZR0P278CA0046.CHEP278.PROD.OUTLOOK.COM (2603:10a6:910:1d::15) To AM6PR03MB5233.eurprd03.prod.outlook.com (2603:10a6:20b:d1::19) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from bozuta-ubuntu-18.syrmia.com (46.240.135.226) by ZR0P278CA0046.CHEP278.PROD.OUTLOOK.COM (2603:10a6:910:1d::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3088.19 via Frontend Transport; Tue, 16 Jun 2020 10:39:42 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [46.240.135.226] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 029fc219-4f4c-4324-bc0f-08d811e19462 X-MS-TrafficTypeDiagnostic: AM6PR03MB3960: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6430; X-Forefront-PRVS: 04362AC73B X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: QL/OCHYyJokb+4EdOCxS/hy6qHgCBnVgWuGzEq71C/Tw+GvPh4n6UuSI/YBGSf5Vkz7w6+Yad82Tg1nsbU3W8yxZ7zGxtBsYyjaxtqLyKMgKrASYyh5Z9j7ns7nN+BgEqLh8sskPQvCYDd4jI5TJWCn7LUcWXfWsk0ylQZzIgo4ppuhyvE3Lk0d9JryxVEQMmp/AZLyGLdqqEE1USwyKXa98T6JMAs1k3yyfnVbS/q+78LZltcmDLazyShwkgnef5ENVxEW1K27mM9kJNvn19S9nbyJ2WcagcEXf3JWiXIjhmMVP4XaJmlVfQ26KYoSzxoCUJmgyelIZQ7+NDuT8ZWUkHUTyHZDbxSWNimiFaJyDyT0QHYTGzYyfYCyI7fkbb0xxtSGgbqHg0i8aQFtJ3g== X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM6PR03MB5233.eurprd03.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(396003)(346002)(366004)(39840400004)(376002)(136003)(966005)(5660300002)(83380400001)(86362001)(508600001)(8936002)(316002)(6666004)(66476007)(6916009)(7696005)(36756003)(2616005)(52116002)(66946007)(66556008)(956004)(44832011)(26005)(1076003)(2906002)(4326008)(16526019)(6486002)(186003)(8676002); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: UpRdYPBq62NhlC5rZrX+km5WixIq84APBt+w8mkZ5nKD9ybp6IKjUhdqjAC9fHjjXdCokEbSl6UqJI6KKjaOMrhFKsCuKSFAyDg5izL9oenokx75pcxvGJ51Ue5j2J9zHoY8UgIXzeZ2ZvgoF5soI35cWGmG7gpNiA6aHhr9blmDrhZ4EQz1Xf8ztQRBjX8go66A6Irtpm4n57lG+vseIox8X2phb8KbnMwq+tONHu11KI1ma8ALcSHhOZD0Wraf3P/dyx3J5uaNr6MnGd2pc6vg5rUCpVd0raZBETA3pW1I5juKxriCpoPZvwOY7LgyolYHZ/kray1RRVinf0RhZu1eVT/tcJ3wWPrqoPJjcOd4zpAf8ASBuieUd4os6ByrO9vosgevqj8Wi/+dNszHmW9n6rgmGggGCvCNx0PploTc6sBooJJssjKvLCZ7E/u52CEqt5QXx4oIQDrQpQnVQXSSnJgXk5msvqVpZaOeB88= X-OriginatorOrg: syrmia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 029fc219-4f4c-4324-bc0f-08d811e19462 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Jun 2020 10:39:42.8876 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 19214a73-c1ab-4e19-8f59-14bdcb09a66e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: byQe/7mgCKY6ta6OwwrxD6uqc6zwnSYVkx56RscCU+jMAvUKy5Lst71WkL5zuuRcLI3n7k/u0/TIC5fdt165ZA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR03MB3960 Received-SPF: pass client-ip=40.107.20.134; envelope-from=Filip.Bozuta@syrmia.com; helo=EUR05-DB8-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/16 06:39:47 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -37 X-Spam_score: -3.8 X-Spam_bar: --- X-Spam_report: (-3.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent@vivier.eu Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Filip Bozuta This patch implements strace argument printing functionality for syscall: *lseek - reposition read/write file offset off_t lseek(int fd, off_t offset, int whence) man page: https://www.man7.org/linux/man-pages/man2/lseek.2.html Implementation notes: The syscall's third argument "whence" has predefined values: "SEEK_SET","SEEK_CUR","SEEK_END","SEEK_DATA","SEEK_HOLE" and thus a separate printing function "print_lseek" was stated in file "strace.list". This function is defined in "strace.c" by using an existing function "print_raw_param()" to print the first and second argument and a switch(case) statement for the predefined values of the third argument. Values "SEEK_DATA" and "SEEK_HOLE" are defined in kernel version 3.1. That is the reason why case statements for these values are enwrapped in #ifdef directive. Signed-off-by: Filip Bozuta Reviewed-by: Laurent Vivier --- linux-user/strace.c | 31 +++++++++++++++++++++++++++++++ linux-user/strace.list | 2 +- 2 files changed, 32 insertions(+), 1 deletion(-) diff --git a/linux-user/strace.c b/linux-user/strace.c index f76bbbc1ff..db561dc4c9 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -1841,6 +1841,37 @@ print__llseek(const struct syscallname *name, } #endif +#ifdef TARGET_NR_lseek +static void +print_lseek(const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + print_raw_param("%d", arg0, 0); + print_raw_param(TARGET_ABI_FMT_ld, arg1, 0); + switch (arg2) { + case SEEK_SET: + qemu_log("SEEK_SET"); break; + case SEEK_CUR: + qemu_log("SEEK_CUR"); break; + case SEEK_END: + qemu_log("SEEK_END"); break; +#ifdef SEEK_DATA + case SEEK_DATA: + qemu_log("SEEK_DATA"); break; +#endif +#ifdef SEEK_HOLE + case SEEK_HOLE: + qemu_log("SEEK_HOLE"); break; +#endif + default: + print_raw_param("%#x", arg2, 1); + } + print_syscall_epilogue(name); +} +#endif + #if defined(TARGET_NR_socket) static void print_socket(const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index af12b23276..905a9c395c 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -516,7 +516,7 @@ { TARGET_NR_lremovexattr, "lremovexattr" , NULL, print_lremovexattr, NULL }, #endif #ifdef TARGET_NR_lseek -{ TARGET_NR_lseek, "lseek" , NULL, NULL, NULL }, +{ TARGET_NR_lseek, "lseek" , NULL, print_lseek, NULL }, #endif #ifdef TARGET_NR_lsetxattr { TARGET_NR_lsetxattr, "lsetxattr" , NULL, NULL, NULL },