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 lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (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 CF83DCA5FD9 for ; Thu, 1 Oct 2026 15:14:18 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1xCIT0-0000z1-D8; Thu, 01 Oct 2026 11:13:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xCISu-0000x8-SP for qemu-devel@nongnu.org; Thu, 01 Oct 2026 11:12:57 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xCISs-0000wo-Au for qemu-devel@nongnu.org; Thu, 01 Oct 2026 11:12:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1790867573; 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: in-reply-to:in-reply-to:references:references; bh=JUzHE7QdyiOQS5vqzhgnKaHT8pU2BBeH6IsrzWgV98o=; b=QMU2JCiupt/GaW8HEt2bAwuuvQDRGGFeshbIYOAxrPPmEb9vKOtoQip14SP42CJIC89Nhx Wy5CcCz0RVzfA4AxX5pdSB9Uy44nVdOpEboNCA845jEHsNOWAzNgUd0TlTmF/t8+GKF7ec ssZToUlUJHDCUATBD18l8iIgGjqxqvc= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-489-GeUPiaPpOYu6ZKY4kPK2WA-1; Thu, 01 Oct 2026 11:12:52 -0400 X-MC-Unique: GeUPiaPpOYu6ZKY4kPK2WA-1 X-Mimecast-MFC-AGG-ID: GeUPiaPpOYu6ZKY4kPK2WA_1790867571 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 376D41954B34 for ; Thu, 1 Oct 2026 15:12:51 +0000 (UTC) Received: from berrange.csb (headnet05.pony-001.prod.iad2.dc.redhat.com [10.2.32.117]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 4EA721956042; Thu, 1 Oct 2026 15:12:50 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH 16/20] trace: include qemu_loglevel_mask(LOG_TRACE) in guard Date: Thu, 1 Oct 2026 16:12:24 +0100 Message-ID: <20261001151228.3373747-17-berrange@redhat.com> In-Reply-To: <20261001151228.3373747-1-berrange@redhat.com> References: <20261001151228.3373747-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 9 X-Spam_score: 0.9 X-Spam_bar: / X-Spam_report: (0.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.331, 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_H2=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org If emitting a trace event requires computation for the parameters passed to the probe, the callers should guard that computation with trace_event_by_state_backends(), which is a macro expanding to the a check of the "TRACE_...._DSTATE()" expression. For the log backend this should include a check for LOG_TRACE being present in the configured log level. Signed-off-by: Daniel P. Berrangé --- scripts/tracetool/backend/log.py | 3 ++- tests/tracetool/all.h | 6 ++++-- tests/tracetool/log.h | 6 ++++-- 3 files changed, 10 insertions(+), 5 deletions(-) diff --git a/scripts/tracetool/backend/log.py b/scripts/tracetool/backend/log.py index 9e3e5046f5f..7834e5b0d40 100644 --- a/scripts/tracetool/backend/log.py +++ b/scripts/tracetool/backend/log.py @@ -42,7 +42,8 @@ def generate_h(event, group): def generate_h_backend_dstate(event, group): - out(' trace_event_get_state_dynamic_by_id(%(event_id)s) || \\', + out(' (trace_event_get_state_dynamic_by_id(%(event_id)s) && \\\n' + ' qemu_loglevel_mask(LOG_TRACE)) || \\', event_id="TRACE_" + event.name.upper()) def generate_rs(event, group): diff --git a/tests/tracetool/all.h b/tests/tracetool/all.h index 41fa4d0e8a2..a2c2d40388e 100644 --- a/tests/tracetool/all.h +++ b/tests/tracetool/all.h @@ -45,7 +45,8 @@ void _simple_trace_test_wibble(void *context, int value); #define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \ QEMU_TEST_BLAH_ENABLED() || \ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \ - trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \ + (trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) && \ + qemu_loglevel_mask(LOG_TRACE)) || \ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \ tracepoint_enabled(qemu, test_blah) || \ @@ -74,7 +75,8 @@ static inline void trace_test_blah(void *context, const char *filename) #define TRACE_TEST_WIBBLE_BACKEND_DSTATE() ( \ QEMU_TEST_WIBBLE_ENABLED() || \ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \ - trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \ + (trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) && \ + qemu_loglevel_mask(LOG_TRACE)) || \ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \ tracepoint_enabled(qemu, test_wibble) || \ diff --git a/tests/tracetool/log.h b/tests/tracetool/log.h index ff510d54908..fe08277887f 100644 --- a/tests/tracetool/log.h +++ b/tests/tracetool/log.h @@ -16,7 +16,8 @@ extern uint8_t _TRACE_TEST_WIBBLE_DSTATE; #define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \ - trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \ + (trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) && \ + qemu_loglevel_mask(LOG_TRACE)) || \ false) static inline void trace_test_blah(void *context, const char *filename) @@ -31,7 +32,8 @@ static inline void trace_test_blah(void *context, const char *filename) } #define TRACE_TEST_WIBBLE_BACKEND_DSTATE() ( \ - trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \ + (trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) && \ + qemu_loglevel_mask(LOG_TRACE)) || \ false) static inline void trace_test_wibble(void *context, int value) -- 2.55.0