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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1767891863; 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=o4SBR89h6eLwGZj35KLKhD3YguhrIDbrsbofZdkSSws=; b=JWWbSw5kwpGhlk5tb9oB0WB/LKYsBDsmtIHKlrGRSmrdssf5r2FRNBPbGasRaTI+GUAqVx JKacWlmrIasTCKEt1FWmjnZB6pmXTCuG0+G3UbNPcUsr7lYxymRZnIMqd2AX6sWiv7wiRk fgBtnnWOX+5uuatkZPQmutygF1TjagA= X-MC-Unique: Z6uoXxfuMeW7Wx2dfdB1EA-1 X-Mimecast-MFC-AGG-ID: Z6uoXxfuMeW7Wx2dfdB1EA_1767891856 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Manos Pitsidianakis , Hanna Reitz , Gerd Hoffmann , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Christian Schoenebeck , "Dr. David Alan Gilbert" , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , devel@lists.libvirt.org, qemu-block@nongnu.org, qemu-rust@nongnu.org, Markus Armbruster , Stefan Weil , Kevin Wolf , Richard Henderson Subject: [PATCH v5 07/24] util: set the name for the 'main' thread Date: Thu, 8 Jan 2026 17:03:21 +0000 Message-ID: <20260108170338.2693853-8-berrange@redhat.com> In-Reply-To: <20260108170338.2693853-1-berrange@redhat.com> References: <20260108170338.2693853-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1767891960485158500 The default main thread name is undefined, so use a constructor to explicitly set it to 'main'. This constructor is marked to run early as the thread name is intended to be used in error reporting / logs which may be triggered very early in QEMU execution. Reviewed-by: Richard Henderson Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Daniel P. Berrang=C3=A9 --- util/qemu-thread-posix.c | 6 ++++++ util/qemu-thread-win32.c | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/util/qemu-thread-posix.c b/util/qemu-thread-posix.c index b1c127dbe3..afeac9ecad 100644 --- a/util/qemu-thread-posix.c +++ b/util/qemu-thread-posix.c @@ -22,6 +22,12 @@ #include #endif =20 +static void __attribute__((__constructor__(QEMU_CONSTRUCTOR_EARLY))) +qemu_thread_init(void) +{ + qemu_thread_set_name("main"); +} + static void error_exit(int err, const char *msg) { fprintf(stderr, "qemu: %s: %s\n", msg, strerror(err)); diff --git a/util/qemu-thread-win32.c b/util/qemu-thread-win32.c index 4d2d663a9a..8ca6429ad3 100644 --- a/util/qemu-thread-win32.c +++ b/util/qemu-thread-win32.c @@ -22,6 +22,12 @@ typedef HRESULT (WINAPI *pSetThreadDescription) (HANDLE = hThread, static pSetThreadDescription SetThreadDescriptionFunc; static HMODULE kernel32_module; =20 +static void __attribute__((__constructor__(QEMU_CONSTRUCTOR_EARLY))) +qemu_thread_init(void) +{ + qemu_thread_set_name("main"); +} + static bool load_set_thread_description(void) { static gsize _init_once =3D 0; --=20 2.52.0