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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9B2CC433EF for ; Wed, 8 Dec 2021 20:08:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234093AbhLHUL4 (ORCPT ); Wed, 8 Dec 2021 15:11:56 -0500 Received: from mail.kdab.com ([176.9.126.58]:47922 "EHLO mail.kdab.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240011AbhLHULz (ORCPT ); Wed, 8 Dec 2021 15:11:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kdab.com; h= content-type:content-type:mime-version:organization:message-id :date:date:subject:subject:from:from; s=dkim; t=1638994100; x= 1639858101; bh=3XQWRQEiY+EJBR/o4/xdYoDxF9pfkwI9KexOIu1+wjI=; b=j Fhm4rv7lzHkvqJ5za/XOOJ5H9SE05RktNx1+tKvs/gdCM9HYMliFI0RelLwIW8HL 7pQ9c9+ExiR1jjXQKGstOWRn+kixQ+zV0XWtheDwysig3YcgBwHYxxM8kEarVIX0 dDAcz8V7bN8xZ6rZbjFz8kINHeUYUU2LALTsKiTYDc= X-Virus-Scanned: amavisd-new at kdab.com From: Milian Wolff To: linux-perf-users@vger.kernel.org Cc: Arnaldo Carvalho de Melo Subject: perf probe: adding probe on C++ member/namespace function or versioned symbols Date: Wed, 08 Dec 2021 21:08:13 +0100 Message-ID: <2119579.vFYbnVOWES@milian-workstation> Organization: KDAB MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4248114.VSFRxQCndH"; micalg="sha256"; protocol="application/pkcs7-signature" Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org --nextPart4248114.VSFRxQCndH Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Hey there, how can one escape function names for `perf probe`? It seems like the current parser is confused by the `:` which is common in C++ symbol names. ``` $ perf probe -F --exec /usr/lib/libQt5Widgets.so | grep syncBacking QWidgetPrivate::syncBackingStore QWidgetPrivate::syncBackingStore $ perf probe --exec /usr/lib/libQt5Widgets.so --add QWidgetPrivate::syncBackingStore Semantic error :There is non-digit char in line number. ... ``` Additionally, it is also not possible to pass a versioned symbol either: ``` $ nm -aD /usr/lib/libQt5Widgets.so | grep syncBacking 0000000000197480 T _ZN14QWidgetPrivate16syncBackingStoreERK7QRegion@@Qt_5_PRIVATE_API 00000000001973b0 T _ZN14QWidgetPrivate16syncBackingStoreEv@@Qt_5_PRIVATE_API Semantic error :SRC@SRC is not allowed. ... ``` Is there a workaround available for this? Thanks -- Milian Wolff | milian.wolff@kdab.com | Senior Software Engineer KDAB (Deutschland) GmbH, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt, C++ and OpenGL Experts --nextPart4248114.VSFRxQCndH Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCEekw ggWBMIIEaaADAgECAhA5ckQ6+SK3UdfTbBDdMTWVMA0GCSqGSIb3DQEBDAUAMHsxCzAJBgNVBAYT AkdCMRswGQYDVQQIDBJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAOBgNVBAcMB1NhbGZvcmQxGjAYBgNV BAoMEUNvbW9kbyBDQSBMaW1pdGVkMSEwHwYDVQQDDBhBQUEgQ2VydGlmaWNhdGUgU2VydmljZXMw HhcNMTkwMzEyMDAwMDAwWhcNMjgxMjMxMjM1OTU5WjCBiDELMAkGA1UEBhMCVVMxEzARBgNVBAgT Ck5ldyBKZXJzZXkxFDASBgNVBAcTC0plcnNleSBDaXR5MR4wHAYDVQQKExVUaGUgVVNFUlRSVVNU IE5ldHdvcmsxLjAsBgNVBAMTJVVTRVJUcnVzdCBSU0EgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkw ggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCAEmUXNg7D2wiz0KxXDXbtzSfTTK1Qg2Hi 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