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 Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B40CFEB365B for ; Tue, 3 Mar 2026 03:23:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.linux.it; i=@lists.linux.it; q=dns/txt; s=picard; t=1772508228; h=to : date : message-id : mime-version : subject : list-id : list-unsubscribe : list-archive : list-post : list-help : list-subscribe : from : reply-to : content-type : content-transfer-encoding : sender : from; bh=Acxr6AjKdpCHiSUIiVpFKrJvB6vWFOfJ8r32BJYL7uU=; b=gfQNxQ0WY8g35Xt8g3rPucdxEsZYSPsLyn9wcNVLur8bD5DyjZWXDFQ5QXnrF9K3I5t4H lhS0yyE3rhPzCtrSa9KtSZvtLHRVaSLRG0ArK2cPmBZqIdP4BeB0F1Gb8B5UCJhwIeAhfmx DGfWmm0XqUCAfzvd8vyS/nfXTK2cWmE= Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 45EE13D85B9 for ; Tue, 3 Mar 2026 04:23:48 +0100 (CET) Received: from in-7.smtp.seeweb.it (in-7.smtp.seeweb.it [IPv6:2001:4b78:1:20::7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id D0F263CF08F for ; Tue, 3 Mar 2026 04:23:23 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-7.smtp.seeweb.it (Postfix) with ESMTPS id EBD3B2005C1 for ; Tue, 3 Mar 2026 04:23:22 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772508201; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=mjR0AZA+P68XocE/V97F0kVyE3zHj17QsAkp2cuCit4=; b=GW6yb3a61ychet9CwwGSsQxgCszvTIyyxO2/rEsEKNUWM0V2A2TS2RkCowSZ8jebEqjJ98 X9Fg/NnW9DD6y1MFYO6JGkYlO4EwhxiT0wvHfwRIrYhzRxWJyJvPv4Ao0M06lPBG6hSAJF 7iLQ07pgMNsntb9QbyPlvw4xgoU1jBg= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-616-eCE-BJCJMEexgurZWbDS-Q-1; Mon, 02 Mar 2026 22:23:19 -0500 X-MC-Unique: eCE-BJCJMEexgurZWbDS-Q-1 X-Mimecast-MFC-AGG-ID: eCE-BJCJMEexgurZWbDS-Q_1772508199 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 813D218003F5; Tue, 3 Mar 2026 03:23:18 +0000 (UTC) Received: from fedora-laptop-x1.redhat.com (unknown [10.72.116.25]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1F0A21800352; Tue, 3 Mar 2026 03:23:15 +0000 (UTC) To: ltp@lists.linux.it Date: Tue, 3 Mar 2026 11:23:10 +0800 Message-ID: <20260303032311.38988-1-liwang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: Id2Jhfd9aOZqGPUTfKZ3-TPLCj38d8swRuRWyC6mX90_1772508199 X-Mimecast-Originator: redhat.com X-Virus-Scanned: clamav-milter 1.0.9 at in-7.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH v2 1/2] lib: Extend -D flag to support multiple debug levels X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Li Wang via ltp Reply-To: Li Wang Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" This patch extends the LTP debugging framework by introducing multiple levels of verbosity for the '-D' command line option. Instead of a simple on/off toggle, it now allows developers to specify whether they want debug output exclusively from the test process, or from both the test and library processes. The supported debug levels are: -D0 : Disable all debug logs (default behavior) -D1 (-D): Enable debug logs for the test process only -D2 : Enable verbose debug logs for both the test and library processes Signed-off-by: Li Wang Acked-by: Cyril Hrubis --- Notes: v1 --> v2: * drop the if (context->tdebug) condition in tst_reinit(). doc/developers/debugging.rst | 6 ++++++ lib/tst_test.c | 26 +++++++++++++++----------- 2 files changed, 21 insertions(+), 11 deletions(-) diff --git a/doc/developers/debugging.rst b/doc/developers/debugging.rst index 181e5b096..8b5550b73 100644 --- a/doc/developers/debugging.rst +++ b/doc/developers/debugging.rst @@ -12,6 +12,12 @@ The LTP framework supports ``TDEBUG`` flag test debug messages. These messages can be enabled using the ``-D`` parameter or setting ``LTP_ENABLE_DEBUG=1`` environment variable (see :doc:`../users/setup_tests`). +The ``-D`` parameter also supports the following verbosity levels: + + ``-D0``: Disable all debug logs (default behavior). + ``-D1`` (or ``-D``): Enable debug logs for the test process only. + ``-D2``: Enable verbose debug logs for both the test and library processes. + Tracing and debugging syscalls ------------------------------ diff --git a/lib/tst_test.c b/lib/tst_test.c index 239494b6f..3b21a8639 100644 --- a/lib/tst_test.c +++ b/lib/tst_test.c @@ -83,7 +83,7 @@ struct context { tst_atomic_t abort_flag; uint32_t mntpoint_mounted:1; uint32_t ovl_mounted:1; - uint32_t tdebug:1; + uint32_t tdebug; }; struct results { @@ -216,8 +216,7 @@ void tst_reinit(void) tst_futexes = ipc->futexes; tst_max_futexes = (size - offsetof(struct ipc_region, futexes)) / sizeof(futex_t); - if (context->tdebug) - tst_res(TINFO, "Restored metadata for PID %d", getpid()); + tst_res(TDEBUG, "Restored metadata for PID %d", getpid()); } extern char **environ; @@ -490,19 +489,20 @@ void tst_res_(const char *file, const int lineno, int ttype, va_list va; /* - * Suppress TDEBUG output in these cases: + * Control TDEBUG output in these cases: * 1. No context available (e.g., called before IPC initialization) - * 2. Called from the library process, unless explicitly enabled - * 3. Debug output is not enabled (context->tdebug == 0) + * 2. Debug output is completely disabled (context->tdebug == 0). + * 3. Debug output is only for test process (context->tdebug == 1). + * 4. Debug output is enabled for both test and lib processes (context->tdebug == 2). */ if (ttype == TDEBUG) { if (!context) return; - if (context->lib_pid == getpid()) + if (context->tdebug == 0) return; - if (!context->tdebug) + if (context->tdebug == 1 && context->lib_pid == getpid()) return; } @@ -657,7 +657,7 @@ static struct option { {"h", "-h Prints this help"}, {"i:", "-i n Execute test n times"}, {"I:", "-I x Execute test for n seconds"}, - {"D", "-D Prints debug information"}, + {"D::", "-D[0-2] Prints debug information"}, {"V", "-V Prints LTP version"}, }; @@ -825,8 +825,12 @@ static void parse_opts(int argc, char *argv[]) tst_brk(TBROK, "Invalid option"); break; case 'D': - tst_res(TINFO, "Enabling debug info"); - context->tdebug = 1; + if (optarg) + context->tdebug = SAFE_STRTOL(optarg, 0, 2); + else + context->tdebug = 1; + + tst_res(TINFO, "Enabling debug info (level %d)", context->tdebug); break; case 'h': print_help(); -- 2.53.0 -- Mailing list info: https://lists.linux.it/listinfo/ltp