From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=148.163.156.1 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793900332; b=5OvSHQeyqKrd80bLd5bx3nlGM7CQPnCqlhauqXagVu1hCDm3JWlWcZMYid5sIHxCSLgN xPaygklZSw3CraAaHnYIggXr2T6eI4aOZmnTrpgD3BcZtActmU29E31PXao1QYUX9y0W6 bPpR1mvRpnS6cz7uYwjjiiSH2yKAxWE6PZEvUAFRIfiExYSDoTbj9qcYqFtKrws5ZOxW0 Gqn+IuGZVX1KAO3aAMhSlCLqS84TWs5gC96QhY10g0/D7/77fKNnV2ibB0PDWRT8Rd5R7 TMsy+/AWbqZYuG2MD60Fo8JQ6uwP8o+9LDPmDfsKTonSxgDyxQltgcAFWlC0d7QFZFw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793900332; h=DMARC-Filter:Received:DKIM-Signature:Received:Received:Received: Received:Received:Received:Received:Message-ID:Date:MIME-Version: User-Agent:Subject:To:Cc:References:From:Content-Language:In-Reply-To: Content-Type:Content-Transfer-Encoding:X-TM-AS-GCONF: X-Proofpoint-Reinject:X-Proofpoint-ORIG-GUID: X-Proofpoint-Spam-Details-Enc:X-Proofpoint-Spam-Info: X-Proofpoint-GUID:X-Authority-Analysis:X-Proofpoint-Virus-Version: X-Proofpoint-Spam-Details; bh=rdzlIaUH6Hn5s4YN1L9yR2AveCxOlTSI0/zi9qQe1hE=; b=zpLes47TzsOwZ7Jf3IP5oF4d/UvWAbckpkD1IgBYNRX5afwGTP4dnNfanLZvdv/Bgcxw t89WLg9cORk1d6uk89NFMVHsBVwX76W7RtDsK6mZgVSqaCFkZRU63S+xbnx4BJvF13Bs9 saaAPSoaJNQ8pCl9Z5tMaybaUccUcgLXPWBj+Cp4jD3gnqoXJY/at6m1qWhbqnMrNiU18 dRp/mPhK962dG7Igg+OAuYrMhBRTM8KFEjA3pSGAAnN6O1qRFvOgGapnRPfvuMAJIBvMJ yNgJuNATScGbVcLFFerUAhiogqsM1ti/nBxxjuakH0VpT6xpej/ENYpfO6u2gKbTpmw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=pgxDCjP0; arc=none smtp.remote-ip=148.163.156.1 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 82A29606A31B; Thu, 5 Nov 2026 17:38:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 82A29606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=pgxDCjP0 Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6A5EiEQ73787730; Thu, 5 Nov 2026 17:38:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=rdzlIa UH6Hn5s4YN1L9yR2AveCxOlTSI0/zi9qQe1hE=; b=pgxDCjP0xdaLvbvLVASo69 nSYnte/UzO55UeAI/scwutSPLHdIEWwwGo43/tz9MEpJ4Rh2m2d6OGdqP9d4Kovz RjBCPB3U/ehRY6z+OEJJHCnSRj62QsCFQ/6370u8Jp5lko+uRRGViRJVA4iZsgHv 3f27t9oXcDHDOS7QmF8/N13Fg2KUsCiemZQPrDv6jsiiqwbPs50W0QTiPD1Ho0Tc ahcB908WbiJ2Yy3ki3guxWFLs/IJWp+ia2Onwcm7X51Di7zfOE/nXKg6v7vlr2uI /c9w1GgbK7+ONoEHJ2BtqGBMT3Zrht+y7zgvjoW5cChakyydcTOMoTTR+3TitqtA == Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4hn82742pe-1 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Thu, 05 Nov 2026 17:38:28 +0000 (GMT) Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.18.1.11/8.18.1.11) with ESMTP id 6A5GuFld1746147; Thu, 5 Nov 2026 17:38:27 GMT Received: from smtprelay04.dal12v.mail.ibm.com ([172.16.1.6]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4hrk9mkgbr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 05 Nov 2026 17:38:27 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (smtpav04.dal12v.mail.ibm.com [10.241.53.103]) by smtprelay04.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6A5HcR4R31392354 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 5 Nov 2026 17:38:27 GMT Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5AD6C58056; Thu, 5 Nov 2026 17:38:27 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 67DA858052; Thu, 5 Nov 2026 17:38:23 +0000 (GMT) Received: from [9.68.10.150] (unknown [9.68.10.150]) by smtpav04.dal12v.mail.ibm.com (Postfix) with ESMTP; Thu, 5 Nov 2026 17:38:23 +0000 (GMT) Message-ID: <0bfde967-9b68-4edb-96d7-ee9580fa1358@linux.ibm.com> Date: Thu, 5 Nov 2026 18:38:10 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 01/20] coverage: move gcov and kcov under kernel/coverage/ To: Sasha Levin , linux-kernel@vger.kernel.org Cc: Alexander Potapenko , Andrew Morton , Andrey Konovalov , Ben Segall , Bill Wendling , Chuck Wolber , Dietmar Eggemann , Dmitry Vyukov , Ingo Molnar , Juri Lelli , Justin Stitt , kasan-dev@googlegroups.com, K Prateek Nayak , linux-doc@vger.kernel.org, llvm@lists.linux.dev, Marco Elver , Masami Hiramatsu , Mauro Carvalho Chehab , Mel Gorman , Nathan Chancellor , Nick Desaulniers , Peter Zijlstra , Steven Rostedt , Thomas Gleixner , Valentin Schneider , Vincent Guittot References: <20261103015238.3780910-1-sashal@kernel.org> <20261103015238.3780910-2-sashal@kernel.org> From: Peter Oberparleiter Content-Language: en-US In-Reply-To: <20261103015238.3780910-2-sashal@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: rkdU5601SIlyTEcZImOEhpH2nM8SvIsv X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA1MDA2OCBTYWx0ZWRfX6NJgN8/MJS35 pbK2PumL8jSiuQmWVCw5maGSbcS30Ek2XXkqSVWxt5CiIze/p2m8RSuSfrT1TocToRxb2dOkIWs CnlZzrH2Pzk62SVShoGHP7rYRw75T7L047aSenT+9ZCUBADK9xweoRN8gD5ligVMTacUUJykEor pEBu3irqghJrnWuCwO4aRVyVm7ufppv0WvZQ93q11ReemzEk4kVp2F7Ih54k6fv5uWU7UKMVq6t EIHEDBHyVEaQL3wQVbyF6J3tK7durH77k8zA8x3bq5OMK0CGPJ2LfjCvKtA4z7oeTF9vfLFTXCJ 95X3CcsvMvpMV6h/HZpUhqgCrISkahyAQkNXaEUV4vlOm0IF7CvPf9r3KRP4r8noW2GrN7un6eC gJVmiBHO3EmYhBYNhIHbqMWp1XoCGITD+pLuMa8m04DS9wzkwi8D9jat2fKMl5/g8OS2qi/7xwh nOE6C2meI2UzXHrJGRA== X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA1MDA2OCBTYWx0ZWRfX4pCvlQhJn+tP fedwpzoYFglsAh62fLOLIf8wKvMnTmjUJpkkGVc8oXHoANVNG/zcdndiG0cLEI66MaCxoxvbBU6 4BSo6rbWEWa0bgu/4qqs1prGmifX1LM= X-Proofpoint-GUID: V_V2ysk_22Dp2O_arpjz6QdKTGBpjRLM X-Authority-Analysis: v=2.4 cv=EsJHPicA c=1 sm=1 tr=0 ts=6aecbf15 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=uAUjUfugXiV6-CzwXu8A:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-05_04,2026-11-04_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1011 lowpriorityscore=0 malwarescore=0 priorityscore=1501 adultscore=0 impostorscore=0 phishscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611050068 On 03.11.2026 02:52, Sasha Levin wrote: > The kernel carries more than one code coverage implementation, each > with its own directory, Kconfig menu, build plumbing and debugfs > interface. Start consolidating them by moving the existing > implementations next to each other: > > kernel/gcov/ -> kernel/coverage/gcov/ > kernel/kcov.c -> kernel/coverage/kcov.c > > Both are configured from a new "Code coverage" menu in > kernel/coverage/Kconfig, which is sourced from "Kernel Testing and > Coverage" where the KCOV options used to live. The gcov options move > there from "General architecture-dependent options". > > No functional change: the Kconfig symbols and their dependencies are > unchanged, and so are the per-object compiler flags of kcov.o, which > move to kernel/coverage/Makefile. > > Signed-off-by: Sasha Levin For the gcov portion: Reviewed-by: Peter Oberparleiter -- Peter Oberparleiter Linux on IBM Z Development - IBM Germany R&D