From nobody Mon Oct 5 15:44:29 2026 X-Original-To: hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hz3bw0w2Wz6k49R for ; Mon, 05 Oct 2026 15:44:44 +0000 (UTC) (envelope-from mpp302@gmail.com) Received: from mail-ed1-f54.google.com (mail-ed1-f54.google.com [209.85.208.54]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hz3bv2Lysz4GZD for ; Mon, 05 Oct 2026 15:44:43 +0000 (UTC) (envelope-from mpp302@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of mpp302@gmail.com designates 209.85.208.54 as permitted sender) smtp.mailfrom=mpp302@gmail.com; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=freebsd.org (policy=none) Received: by mail-ed1-f54.google.com with SMTP id 4fb4d7f45d1cf-6aa850436d3so2243483a12.2 for ; Mon, 05 Oct 2026 08:44:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791215082; x=1791819882; h=to:date:message-id:subject:mime-version:content-transfer-encoding :content-type:from:x-gm-gg:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to:content-type; bh=h32FiOyh84JnUveltj2HL0bOXE+BGY4MM5dQoCn+MNk=; b=KvTQUC/xWFCyTN0eY+FE4gtUP1EBPrAiQZdq3Nc0fUK/iSa/+fsnLeIm0a5N48LMAS tARV50iXuZyr23EUcDIinxVFXETRFeLn1Z5WPibjkZKJEiIPidvjhngKIdWK71bitciV 9i+scbAk3CbBPkTstGYqmBXMV+1Y0DFBhXleGYXxYWlw6/bjDrxBTedJUJ5KlVyRtvUZ QKrPppjO2HYaL5hZpols2PnGhmE+wltHMIyry1sEfBVCSGUzgP/4iktvBQXzT6qKhpWR AsbqOozMCYb6jXfvNI22YNr4WivXPfFiQN1e/JtP9l/Q9uGfxOVyhBphBJ/41f6vVLxt 9hQw== X-Gm-Message-State: AFq9FYK9docdZKY3n3TzK3QePisJR9nDsGaz2uvJatBmA1YV4d/zvuAZ Zqww8YuYSk+NBiDB13YXoQ3O4CwGpabCaAG9k1i/h5kveJNHyxzwjTC44YwUZQ== X-Gm-Gg: AYBFou3ScQ9w3TfrHoeY0cpLpmGzQJ36lzeZMHOwE1iZOpkGGeihwY3iIDWATPgeXQc eCVynkPOoLIWh8/Vj84PiDGMBMlQ3uQtgUwZqGiVqFnAVVxDnapzjUiqNcLQn6vPLpOW8cwE8F+ Qm0hQ1PMzu7at0rI23i0L8LDc/bSmmynZ+zl7whA26YLOUth1SAJ1G/KiYjWtGR06pO/0i0ZxoH bkwGbZ/9UooPf0v86VMa1AvfdAgDYBiTyocSM+S67UttuL6gNxNpp17t1c8bBKqaw1vwpAtqFtq mFj764itGe6+28ivqZ+sVkUG2FPBLfbR5KYdKmDuk5dhLpLKh5MmytdnHGLwgPc34Sp6droW+t8 n0sG3K1jlmsyjjuXER+x3arFEKohod6GgCTNNiO1akGCdzeSIUrUAUFJhU/Ws8Fp043M8+F3cO5 +rgxSBuW9+XI1KGLxU/QRofIB8LM7t7pORGMrHkTXA+wbmg87RRh5UaJFWLwB0QBqcWwhS1PHDY bTvOQpyppo0asJdkNNkOySKnHa/u5AVmUY2pHErdM4AlwAZgNbEHBDk X-Received: by 2002:a05:6402:42c6:b0:6ac:77c2:c418 with SMTP id 4fb4d7f45d1cf-6afad740208mr7264446a12.1.1791215081874; Mon, 05 Oct 2026 08:44:41 -0700 (PDT) Received: from smtpclient.apple ([2a02:8109:8698:ce00:44d1:5931:a10a:1cad]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6afb021fc44sm3427437a12.32.2026.10.05.08.44.40 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 05 Oct 2026 08:44:41 -0700 (PDT) From: Mateusz Piotrowski <0mp@FreeBSD.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3901.100.1.1.12\)) Subject: DTRACE option for Python ports Message-Id: <38E356D8-6D22-47E4-8587-92443AD403FA@FreeBSD.org> Date: Mon, 5 Oct 2026 17:44:29 +0200 To: hackers@freebsd.org X-Mailer: Apple Mail (2.3901.100.1.1.12) X-Spamd-Bar: / X-Spamd-Result: default: False [0.60 / 15.00]; MV_CASE(0.50)[]; FORGED_SENDER(0.30)[0mp@FreeBSD.org,mpp302@gmail.com]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17:c]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : SPF not aligned (relaxed), No valid DKIM,none]; MIME_GOOD(-0.10)[text/plain]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.85.208.54:from]; TO_DOM_EQ_FROM_DOM(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[hackers@freebsd.org]; FREEMAIL_ENVFROM(0.00)[gmail.com]; RCVD_COUNT_TWO(0.00)[2]; FROM_NEQ_ENVFROM(0.00)[0mp@FreeBSD.org,mpp302@gmail.com]; FROM_HAS_DN(0.00)[]; R_DKIM_NA(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[hackers@freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[209.85.208.54:from] X-Rspamd-Queue-Id: 4hz3bv2Lysz4GZD Hello Hackers, I've posted a patch on Phab that adds a long-awaited DTRACE option to = our Python ports. For now, it's Python 3.14 only. I'll update other versions once I get = feedback on a single version. https://reviews.freebsd.org/D60369 The patch itself is not big but I'd welcome reports whether it works on = architectures other than amd64. Based on my testing Python with DTRACE = builds on aarch64 but no probes show up. A more interesting issue perhaps is that we currently cannot enable the = DTRACE option by default, because it conflicts with LTO, at least during = building. =46rom what I understand, the issue might be that LTO makes = object files contain LLVM bitcode instead of ELF objects, which breaks = the DTrace-enabled Python build. If you have ideas how this could be = addressed, so that we have Python with DTrace widely available, let me = know. That's all. Enjoy your week! Mateusz Piotrowski=