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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id C3BB8CA0EEB for ; Thu, 21 Aug 2025 14:31:12 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1up6JK-0008PM-EZ; Thu, 21 Aug 2025 10:30:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1up6JJ-0008Ox-Dx for qemu-devel@nongnu.org; Thu, 21 Aug 2025 10:30:37 -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 1up6JH-00072l-37 for qemu-devel@nongnu.org; Thu, 21 Aug 2025 10:30:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1755786633; 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: in-reply-to:in-reply-to:references:references; bh=86xfhadHv62EUAgE1Gfl6cKTiNoha5CSmGLqrUfwdLw=; b=K1b9b8NPAaSvWy5fVs86sfpSzpnom64zwACed0abxhU8a3UxbwNOIEIwla0Sq9KYaNRcfW RFVZrBt0uCaK7q+N2vJIV967jNmkSuO9b+w7jN4UiTX6Q7JZBaJGiS/AvltvRY5W92hM+W cIu4f5B7E1UNzlgMkoq3vc93RTbIRlg= Received: from mx-prod-mc-08.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-487-QygswYtoPsa4yCI2o5TrZQ-1; Thu, 21 Aug 2025 10:30:31 -0400 X-MC-Unique: QygswYtoPsa4yCI2o5TrZQ-1 X-Mimecast-MFC-AGG-ID: QygswYtoPsa4yCI2o5TrZQ_1755786630 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-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 09077195C15A; Thu, 21 Aug 2025 14:29:12 +0000 (UTC) Received: from localhost (unknown [10.2.16.124]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 763C81955F24; Thu, 21 Aug 2025 14:29:11 +0000 (UTC) Date: Thu, 21 Aug 2025 10:29:10 -0400 From: Stefan Hajnoczi To: Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= Cc: qemu-devel@nongnu.org, Michael Roth , Paolo Bonzini , Thomas Huth , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Markus Armbruster , Mads Ynddal , Alex =?iso-8859-1?Q?Benn=E9e?= Subject: Re: [PATCH v4 0/7] tracetool: add test suite to improve reviewability Message-ID: <20250821142910.GD7010@fedora> References: <20250819161053.464641-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="YACCkNcH7AcOjKIe" Content-Disposition: inline In-Reply-To: <20250819161053.464641-1-berrange@redhat.com> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.129.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: 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 --YACCkNcH7AcOjKIe Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 19, 2025 at 05:10:46PM +0100, Daniel P. Berrang=E9 wrote: > To repeat the start of the commit message in patch 5.... >=20 > When reviewing tracetool patches it is often very unclear what the > expected output will be for the generated backends. Compounding > this is that a default build will only enable the 'log' trace > backend, so developers won't see generated code for other backends > without making a special effort. Some backends are also platform > specific, so can't be enabled in QEMU builds, even though tracetool > could generate the code. >=20 > To address this, introduce a test suite for tracetool which is > conceptually similar to the qapi-schema test. It is a simple > python program that runs tracetool and compares the actual output > to historical reference output kept in git. >=20 > This was inspired by noticing the now pointless "__nocheck__" > method wrapping in the inline probe functions. >=20 > Changed in v4: >=20 > - Drop patch adding '-' as an output filename for tracetool > - Rewrite test to always use relative filenames for both > inputs and outputs > - Pass python code through 'black' > - Minor docs punctuation tweak > - Drop unused python method >=20 > Changed in v3: >=20 > - Also modify the QAPI schema test to use QEMU_TEST_REGENERATE=3D1 > env & document / hint this > - Make tracetool accept '-' as shorthand for stdout to > avoid relative paths in the reference output >=20 > Changed in v2: >=20 > - Add tracetool info to docs/devel/testing.rst >=20 > Daniel P. Berrang=E9 (7): > checkpatch: cull trailing '*/' in SPDX check > tracetool: eliminate trailing whitespace in C format > tracetool: avoid space after "*" in arg types > tracetool: include SPDX-License-Identifier in generated files > tracetool: add test suite for tracetool with reference output > tracetool: drop the probe "__nocheck__" wrapping > qapi: switch to use QEMU_TEST_REGENERATE env var >=20 > MAINTAINERS | 1 + > docs/devel/testing/main.rst | 40 +++++++ > scripts/checkpatch.pl | 3 + > scripts/tracetool/__init__.py | 9 +- > scripts/tracetool/format/c.py | 3 +- > scripts/tracetool/format/d.py | 3 +- > scripts/tracetool/format/h.py | 17 +-- > scripts/tracetool/format/log_stap.py | 1 + > scripts/tracetool/format/simpletrace_stap.py | 1 + > scripts/tracetool/format/stap.py | 1 + > scripts/tracetool/format/ust_events_c.py | 1 + > scripts/tracetool/format/ust_events_h.py | 1 + > tests/Makefile.include | 1 + > tests/meson.build | 1 + > tests/qapi-schema/test-qapi.py | 7 +- > tests/tracetool/dtrace.c | 32 ++++++ > tests/tracetool/dtrace.d | 10 ++ > tests/tracetool/dtrace.h | 45 ++++++++ > tests/tracetool/dtrace.log-stap | 15 +++ > tests/tracetool/dtrace.simpletrace-stap | 16 +++ > tests/tracetool/dtrace.stap | 14 +++ > tests/tracetool/ftrace.c | 32 ++++++ > tests/tracetool/ftrace.h | 59 +++++++++++ > tests/tracetool/log.c | 32 ++++++ > tests/tracetool/log.h | 43 ++++++++ > tests/tracetool/meson.build | 25 +++++ > tests/tracetool/simple.c | 61 +++++++++++ > tests/tracetool/simple.h | 40 +++++++ > tests/tracetool/syslog.c | 32 ++++++ > tests/tracetool/syslog.h | 43 ++++++++ > tests/tracetool/trace-events | 5 + > tests/tracetool/tracetool-test.py | 105 +++++++++++++++++++ > tests/tracetool/ust.c | 32 ++++++ > tests/tracetool/ust.h | 41 ++++++++ > tests/tracetool/ust.ust-events-c | 14 +++ > tests/tracetool/ust.ust-events-h | 56 ++++++++++ > 36 files changed, 821 insertions(+), 21 deletions(-) > create mode 100644 tests/tracetool/dtrace.c > create mode 100644 tests/tracetool/dtrace.d > create mode 100644 tests/tracetool/dtrace.h > create mode 100644 tests/tracetool/dtrace.log-stap > create mode 100644 tests/tracetool/dtrace.simpletrace-stap > create mode 100644 tests/tracetool/dtrace.stap > create mode 100644 tests/tracetool/ftrace.c > create mode 100644 tests/tracetool/ftrace.h > create mode 100644 tests/tracetool/log.c > create mode 100644 tests/tracetool/log.h > create mode 100644 tests/tracetool/meson.build > create mode 100644 tests/tracetool/simple.c > create mode 100644 tests/tracetool/simple.h > create mode 100644 tests/tracetool/syslog.c > create mode 100644 tests/tracetool/syslog.h > create mode 100644 tests/tracetool/trace-events > create mode 100755 tests/tracetool/tracetool-test.py > create mode 100644 tests/tracetool/ust.c > create mode 100644 tests/tracetool/ust.h > create mode 100644 tests/tracetool/ust.ust-events-c > create mode 100644 tests/tracetool/ust.ust-events-h >=20 > --=20 > 2.50.1 >=20 Thanks, applied to my tracing-next tree: https://gitlab.com/stefanha/qemu/commits/tracing-next Stefan --YACCkNcH7AcOjKIe Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAminLTYACgkQnKSrs4Gr c8jAywf/V06t1I4DJPQauTVNa/f2GmZEKY0cDxSfeKzbYHHj8PJUYXR+c5a4qcuD QtwOhxgr84HOyuVssHMeKpx7eMLAF46RFSlG5Qwr5VQeee2Rlz7TG8tg8oIHXllM eO10yFYMhHn7r2w+ti4NBmGtQ0umAUDuU0NWwjY01vtZ7puVQGPqJjFAACzWhrDM Cf69LPITgVibEger2JvY7kxu4imJTg2lTUHlp71YOAdafU9cYQE3NDRdc1KnEyId 7tswj5hCjpbZXR186e/h7WhvBCaKggl/N16SFhHQU7947yuKlKIZ2vYZeQxjCSQt IiIfPD61lDtnyKDn2nv3aODLStzmeg== =pt8i -----END PGP SIGNATURE----- --YACCkNcH7AcOjKIe--