From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A62E28C5A6; Tue, 10 Jun 2025 12:42:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749559349; cv=none; b=qFCmVERmvIG/ht3dyypWZ6Pjwn+xtkc2tQSKN4l0WEcsgDfBWZ7IkWtVDNIgJjejgUfYJtCaZwU8jJvOpoGWHj7kaw4d1q4usr7bjMkuXEYMCxpRQTxWzxQfj1Dmdl0fKUe9QANKUv5r8wl+eEgQD29PeFTcprrfP41m48QFPAA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749559349; c=relaxed/simple; bh=/1iUBspDEJPAm1syGxDL8nO0vqi84Psh/DKw5YFPtZY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=CvPLHi+TGSDMVcYqztj0+4yrv31JusalcJq3Q5853mTJd65vFZcwGqBO71BoX3d3AKSgj6BgvIN/fn2ep7CUgOIfxUb3z4I3yTOyxxOjcBdbEReMyzRp1AGYhtS6TTT5sn5AsN23+V79d9bt+e0k7LybCYt/lquVR9/4pYaB8Yo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=S6W8ANdd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="S6W8ANdd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4DF41C4CEED; Tue, 10 Jun 2025 12:42:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749559349; bh=/1iUBspDEJPAm1syGxDL8nO0vqi84Psh/DKw5YFPtZY=; h=From:Subject:Date:To:Cc:From; b=S6W8ANddI6Mxzhu+bXnGcpy8S6b5KZK+nZEs+R3mO2Auw38nnZC1tRvDbYZdoa1+0 Hpw84ytsKQ6UMY3RRV/KpuP9rMKbz5z/VDVqfpA/FGAgQKBEjEt8xVp4m0HPidvSGV rlWFHjMs6YaD7pNrWyWC+0HX4Q5gFH7lzSCIOtHu8Dwg2EMFR8sWn72aaDRdAikOJw EI6QgZONtHdHf1uf+Vq4aah3loDxstGSWePBaHay6Kj9nIO9hBjGyL84cFpp9ODwu3 WK47sJd+a+goDLNyagg+vBxTgzplTDmDiXhFFQJxdXvwVJj2kJGEArcbvXvm3SmqnK WXav1c4Uxba4Q== From: Mark Brown Subject: [PATCH v2 0/4] kselftest/arm64: Add coverage for the interaction of vfork() and GCS Date: Tue, 10 Jun 2025 13:29:43 +0100 Message-Id: <20250610-arm64-gcs-vfork-exit-v2-0-929443dfcf82@kernel.org> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIADglSGgC/22NQQ6CMBBFr2Jm7ZjSUIquvIdhUWEKE5SaKWkwh LtbcevyveS/v0IkYYpwOawglDhymDLo4wHawU09IXeZQSttlNE1OnlWJfZtxOSDjEgLz1g62zl vK6OJIE9fQp6XPXtrMg8c5yDv/SUVX/sLVur8P5gKVHh3rlNe1caW9jqSTPQ4Bemh2bbtA6YdR OS5AAAA X-Change-ID: 20250528-arm64-gcs-vfork-exit-4a7daf7652ee To: Willy Tarreau , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , Christian Brauner , Catalin Marinas , Will Deacon , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Mark Brown X-Mailer: b4 0.15-dev-c25d1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1234; i=broonie@kernel.org; h=from:subject:message-id; bh=/1iUBspDEJPAm1syGxDL8nO0vqi84Psh/DKw5YFPtZY=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBoSCgu82PSVmQPG9g1oJQrsyvsTSf2h9mS1ONCsW21 mqjhbFOJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaEgoLgAKCRAk1otyXVSH0BMCB/ 98zbKt51BDbhAYnQSZMke8OJDPGCHrlTF1lGFJxPCARcuIDzBp0prKAYytmm00o9LOAKqSVTyCpegx 36l/v8Ig3awVYYtpl5D3hnvGppd5weMjb59iEegi0cJaNRIHjnSYKjI8XjnlrRrRV+hkr1QsjDOdYE OF4si6AwG9Nskqf/O295slJO/OyJZiy/Jn7aKHbpXQE8Ldw9KckocVneCaqLoBhxDs0MeigiSicVpN 97h4+IpmCEA45bBJhCoZNTGDP000E5Fq3/bOuLfWZLbY8fbCEaHD7MeDP+QqAHAzowbXjJcirYclA1 FJ9v/u3BYt8jGyR6+o/ue1MRNC4WRw X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB I had cause to look at the vfork() support for GCS and realised that we don't have any direct test coverage, this series does so by adding vfork() to nolibc and then using that in basic-gcs to provide some simple vfork() coverage. Signed-off-by: Mark Brown --- Changes in v2: - Add replacement of ifdef with if defined() in nolibc since the code doesn't reflect the coding style. - Remove check for arch specific vfork(). - Link to v1: https://lore.kernel.org/r/20250609-arm64-gcs-vfork-exit-v1-0-baad0f085747@kernel.org --- Mark Brown (4): tools/nolibc: Replace ifdef with if defined() in sys.h tools/nolibc: Provide vfork() kselftest/arm64: Add a test for vfork() with GCS selftests/nolibc: Add coverage of vfork() tools/include/nolibc/sys.h | 57 +++++++++++++++++------- tools/testing/selftests/arm64/gcs/basic-gcs.c | 63 +++++++++++++++++++++++++++ tools/testing/selftests/nolibc/nolibc-test.c | 23 ++++++++-- 3 files changed, 124 insertions(+), 19 deletions(-) --- base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 change-id: 20250528-arm64-gcs-vfork-exit-4a7daf7652ee Best regards, -- Mark Brown