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 6667119DF4A; Thu, 3 Jul 2025 16:06:06 +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=1751558766; cv=none; b=qXURDVvbogwuG+PUCb9ek0q3QmETvkl8lYlV/bczd9G36WzBXgD29/+KUhFi6UUGnUvg/CvYwKkHRGahAl6tpnyYm/VpgUOYCKCwnWQRTte8y4vWgLiKdAPostNshNkGI2ILfWfohNK1KJsvlFtjB5XWXv54BVDJl1K2Xbtk6IM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751558766; c=relaxed/simple; bh=jscWpusFJ8+GtruSvYfX4sZd6NM08wNAfoGwbX7hARg=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=mVS0Z5/qm3Sn3pJKC4itiDegRGAwlERnV/WkGkFEihSJ0c/AjG5Y4U03MhvAU8whxbcNicKYd8p6uBb58LBE2xBIRVJ5MB1OMSQtLuzjK7yooYY/xA5y7MEf7XD11JPk1T6u/W4NCLkcIoA1haU7waeQLNH1pDtf6YZz0LiWD+Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=A/Af3uuJ; 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="A/Af3uuJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C7C7EC4CEE3; Thu, 3 Jul 2025 16:06:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751558766; bh=jscWpusFJ8+GtruSvYfX4sZd6NM08wNAfoGwbX7hARg=; h=From:Subject:Date:To:Cc:From; b=A/Af3uuJ9Rb75VKRKFSZpo60tgELsxvze3GiO+tvgALR45Oc5FnwaW/s3gWVHnHno wtAnMK7Pkra9/9GYykEEyE8V+UhVKgcP7+V4M2CWr1dFcEB5CVRThgoG2K1lZKOGIP JuHT2Sgx4tuhuRZ4rp9yGtzYDfd0NprhQJE3DZBz0Hma+AkkBMWtdAcMlWybx1EXwf i1rB2XIUb8705skRmHvXftKvYcB8wmtO2LUGtO0FtWBCvRdHV8VsYVSZJmz1D/j6gG 5CjIkOlGam5P3PrDGrs5MlMX2pPniYTBI8x7oiJFTUZ3GAYPUNqWKyozoY6wp8tjLU KWxeyDdIUnV2g== From: Mark Brown Subject: [PATCH v3 0/4] kselftest/arm64: Add coverage for the interaction of vfork() and GCS Date: Thu, 03 Jul 2025 17:00:14 +0100 Message-Id: <20250703-arm64-gcs-vfork-exit-v3-0-1e9a9d2ddbbe@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@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=H4sIAA+pZmgC/3XNTQ6CMBCG4auYrq0pQ8uPK+9hXFQ6hQalZkoaD OHuFtxoosv3S+aZmQUkh4EddzMjjC44P6TI9zvWdHpokTuTmoEAJRRUXNO9kLxtAo/WU89xciO XujTaloUCRJZOH4TWTRt7vqTuXBg9PbcvMVvXN1iI+jcYMy74VWsjrKhUKctTjzTg7eCpZasY4 UPJxB8FklJDLWVubGMr+FKWZXkB/NBjL/8AAAA= 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-cff91 X-Developer-Signature: v=1; a=openpgp-sha256; l=1520; i=broonie@kernel.org; h=from:subject:message-id; bh=jscWpusFJ8+GtruSvYfX4sZd6NM08wNAfoGwbX7hARg=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBoZqpmO/tREkuh6QDv6tS66hUZmiy2srI0RMbDv H6NfA3zhpuJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaGaqZgAKCRAk1otyXVSH 0M82B/9IWr8jKeogcUOCsJ29Xy4yksQCrWaixdsv+ivWdPhePEkOF9in+1wur5EfZ+l2qgCdWnn 8lactjzxDDZuFpkZe0h1SMXCtoObhDKFuM31t8VM6KNYLWabWIlXEMPU5htK8AbqSvo1d++HisJ 7kLjvw+KTyve9tcNgFDQfngnC1Alzo+W09LmmJgwB7ec08acaKrt4OXMAjVuuhLOxtlsgyMp+7M W+u2R9eWldITBx70d4VkUHHNhhItxoeLqKCEowCoV9KBQyaFArUms2R3RkrOzKuN9T/8sGPWKUV sjwz9ZOtVwG0eB+L21KEsnsEhxjdV8s50e0yNhmiuEyGEDfM 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 v3: - Stylistic nits in the GCS vfork() test. - SPARC has a non-standard vfork() ABI which needs handling. - Link to v2: https://lore.kernel.org/r/20250610-arm64-gcs-vfork-exit-v2-0-929443dfcf82@kernel.org 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/arch-sparc.h | 16 +++++++ tools/include/nolibc/sys.h | 59 ++++++++++++++++++------- tools/testing/selftests/arm64/gcs/basic-gcs.c | 63 +++++++++++++++++++++++++++ tools/testing/selftests/nolibc/nolibc-test.c | 23 ++++++++-- 4 files changed, 142 insertions(+), 19 deletions(-) --- base-commit: 86731a2a651e58953fc949573895f2fa6d456841 change-id: 20250528-arm64-gcs-vfork-exit-4a7daf7652ee Best regards, -- Mark Brown