From patchwork Tue Jun 16 08:58:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 280403 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 C0138C433E0 for ; Tue, 16 Jun 2020 09:00:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 8DC3D20663 for ; Tue, 16 Jun 2020 09:00:38 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Tue, 16 Jun 2020 08:58:21 +0000 (UTC) Received: from thuth.com (ovpn-114-128.ams2.redhat.com [10.36.114.128]) by smtp.corp.redhat.com (Postfix) with ESMTP id 63A956ED96; Tue, 16 Jun 2020 08:58:20 +0000 (UTC) From: Thomas Huth To: peter.maydell@linaro.org, qemu-devel@nongnu.org Subject: [PULL 3/7] fuzz: Add support for logging QTest commands Date: Tue, 16 Jun 2020 10:58:09 +0200 Message-Id: <20200616085813.29296-4-thuth@redhat.com> In-Reply-To: <20200616085813.29296-1-thuth@redhat.com> References: <20200616085813.29296-1-thuth@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/16 02:01:17 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-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: Alexander Bulekov Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Alexander Bulekov Signed-off-by: Alexander Bulekov Message-Id: <20200529221450.26673-3-alxndr@bu.edu> Reviewed-by: Darren Kenny Signed-off-by: Thomas Huth --- tests/qtest/fuzz/fuzz.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/tests/qtest/fuzz/fuzz.c b/tests/qtest/fuzz/fuzz.c index ea630ddb9b..a44fe479db 100644 --- a/tests/qtest/fuzz/fuzz.c +++ b/tests/qtest/fuzz/fuzz.c @@ -94,7 +94,9 @@ static void usage(char *path) printf("Alternatively, add -target-FUZZ_TARGET to the executable name\n\n" "Set the environment variable FUZZ_SERIALIZE_QTEST=1 to serialize\n" "QTest commands into an ASCII protocol. Useful for building crash\n" - "reproducers, but slows down execution.\n"); + "reproducers, but slows down execution.\n\n" + "Set the environment variable QTEST_LOG=1 to log all qtest commands" + "\n"); exit(0); } @@ -197,6 +199,11 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp) /* Run QEMU's softmmu main with the fuzz-target dependent arguments */ const char *init_cmdline = fuzz_target->get_init_cmdline(fuzz_target); + init_cmdline = g_strdup_printf("%s -qtest /dev/null -qtest-log %s", + init_cmdline, + getenv("QTEST_LOG") ? "/dev/fd/2" + : "/dev/null"); + /* Split the runcmd into an argv and argc */ wordexp_t result;