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 E916EFD0048 for ; Sun, 1 Mar 2026 01:28:48 +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=1772328527; 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=yitNMRsuoYw/EjKyl+7hkWlc/SBgLITH6pgpO0rFkrw=; b=hoeJMvnfX2kZQ6d64+6M00ivoKKHtDrdhPnnmNOI8vULs626G824DfWTexdxI7An06j6Q F9RwLC8JQKB8/ltk+rfl3FtbvsxwqMn3GsfC6VscL5Mb9Qkz+FQcnasMnHWvxdIX0qJCTe7 COQgJBuYe0YCNiDe4woC8b+JYjxFyHc= Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 374AB3CE9E8 for ; Sun, 1 Mar 2026 02:28:47 +0100 (CET) Received: from in-5.smtp.seeweb.it (in-5.smtp.seeweb.it [IPv6:2001:4b78:1:20::5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id 72DE43C3212 for ; Sun, 1 Mar 2026 02:28:22 +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-5.smtp.seeweb.it (Postfix) with ESMTPS id EE4E9600790 for ; Sun, 1 Mar 2026 02:28:21 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772328499; 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=Zjm6i0mvvYq2UHjen/M66G4st8zfpEU0Mk5X4UkhY9w=; b=TRa7+imoEdvb0/2o7HnAhqcRqeqZLpIdYnzc1yiTgU+lkNxd/CWmZcUvcMUpmxWfy8yrd7 eF/pd7vdD/rrJ80LqHvEBHPq7FqdYRiT94sTzG/hNCyGZ/m95SEHinbIx69VoVj8fhI9em wn/A1DLI1S6aQ038q1DbSYS5hl2KVsg= 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-122-SNp-Z3ZOPbeIYx2YtDZsPg-1; Sat, 28 Feb 2026 20:28:16 -0500 X-MC-Unique: SNp-Z3ZOPbeIYx2YtDZsPg-1 X-Mimecast-MFC-AGG-ID: SNp-Z3ZOPbeIYx2YtDZsPg_1772328495 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (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 D24761800464; Sun, 1 Mar 2026 01:28:14 +0000 (UTC) Received: from fedora-laptop-x1.redhat.com (unknown [10.72.116.11]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 290E730001B9; Sun, 1 Mar 2026 01:28:12 +0000 (UTC) To: ltp@lists.linux.it Date: Sun, 1 Mar 2026 09:28:08 +0800 Message-ID: <20260301012808.15588-1-liwang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: GbzJOr-eU5CAKRp5ztk4i7MnXG3lAq7kV54zSv-TxSo_1772328495 X-Mimecast-Originator: redhat.com X-Virus-Scanned: clamav-milter 1.0.9 at in-5.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH] 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 --- doc/developers/debugging.rst | 6 ++++++ lib/tst_test.c | 25 +++++++++++++++---------- 2 files changed, 21 insertions(+), 10 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..f7907223e 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 { @@ -217,7 +217,7 @@ void tst_reinit(void) 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 +490,20 @@ 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 +658,7 @@ 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 +826,12 @@ 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