From nobody Sun Nov 24 08:07:45 2024 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 94DD9186E58; Thu, 7 Nov 2024 01:44:00 +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=1730943840; cv=none; b=Xhxvf7DUntVufpPjIqalG4sxwf6rhSzuG0UEJ/ReX3Kf+YCPQSCySZBcF1+i+OXL1dDPUh9oyqD51pkXvipc6jjnHxQYHZAHu9kJ3KpHr2X6X05NSPzbBwoAfVBpN1qCpQlAqR9DW/sH7+iMk7r90PxIa2NlVRQMO0cqFS3MUSQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730943840; c=relaxed/simple; bh=leVU7E1xUyU67WCn5RdQJAXMEOCia4xbUFczyjMgbo0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=uIhwES1hF6+lfNftwaE7Ds5GMwgtCeu1jt7C4xxeT39VuzZ0CVhoAa1m7Oc6ekbzzho2Xa0nukGrKj/JriEIoCwUh8MwNe1ywPHBn0hHCFbkTZElYLCXQj7EGYpC4JVTaSpFDI8dHppmZLz3ochD5jYAI3wKSsPH1kesx9fYkMU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jD80AIlz; 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="jD80AIlz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2BB7C4CECC; Thu, 7 Nov 2024 01:43:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730943840; bh=leVU7E1xUyU67WCn5RdQJAXMEOCia4xbUFczyjMgbo0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jD80AIlzSqU2r/cv9e/ie7Owo+WfjDElCsL6B8UgadlAaRiP+5loHocFvNnVoXa3b oG8RmynJUtK37v71OIhLcZ69krDJBhOFA0AeuVVW27cAGQZionXdR24/7k0cRDqCk7 iUgTosPk1f5VAvyd9OHB6ztAXzsPufCXXbu9EQKqM8rMrotlyka3xcBKE/zQe7Dm+9 Am0HwME3N8tHhzwS2JxuGME7wRWy4Bdv4SY/M689QhbIdy/rP0KVDWZHhYAwaUSc+O qGu4/mSb5RC+oydJLjZTYmjZ4HhgbkKe72gq7teGXdHUNvHWNniMIDf6rr69kggRVh nNhCsTdzDcVqg== From: Mark Brown Date: Thu, 07 Nov 2024 01:39:24 +0000 Subject: [PATCH v2 5/6] kselftest/arm64: Provide a SIGUSR1 handler in the kernel mode FP stress test 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: quoted-printable Message-Id: <20241107-arm64-fp-stress-irritator-v2-5-c4b9622e36ee@kernel.org> References: <20241107-arm64-fp-stress-irritator-v2-0-c4b9622e36ee@kernel.org> In-Reply-To: <20241107-arm64-fp-stress-irritator-v2-0-c4b9622e36ee@kernel.org> To: Catalin Marinas , Will Deacon , Shuah Khan Cc: Mark Rutland , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Brown X-Mailer: b4 0.15-dev-9b746 X-Developer-Signature: v=1; a=openpgp-sha256; l=1313; i=broonie@kernel.org; h=from:subject:message-id; bh=leVU7E1xUyU67WCn5RdQJAXMEOCia4xbUFczyjMgbo0=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBnLBtS2FRnGevJn8KdIwsF19SK/BkdiQ/yz1S77N3e u1IvERGJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZywbUgAKCRAk1otyXVSH0DadB/ 41K/s/wFQumB72ze1INxlRbvEQrpNju8Mfu7P81epd5uw2x02Ey2Bg9GCyHSCnA6T+2mHk4N5NK+FS vPG6XeN9PkdLjANLz/0gx91TrUw/Sf4Cbun9GSYKk7tmLBqHMJrEEAWoeJtfWXVi0aj/UZ78bTikSw nA90uLjIeY8Gnr9Sdo0xss5XTV1RjfGNScF7EPgMreb6nGCHmhfq9i1rqauJwqT2oCTJUsGYMxcLi9 XDVrtAY14aXzBud0yt2s442KvlKVj/EcHfZdnM5cR8ZtRmPbYH3Aj3qb6JQOiIrczBxYLAGuT2TRs/ EPkj0uwDq0d7TChyA7GwaXUmott0Rf X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB The other stress test programs provide a SIGUSR1 handler which modifies the live register state in order to validate that signal context is being restored during signal return. While we can't usefully do this when testing kernel mode FP usage provide a handler for SIGUSR1 which just counts the number of signals like we do for SIGUSR2, allowing fp-stress to treat all the test programs uniformly. Acked-by: Mark Rutland Signed-off-by: Mark Brown --- tools/testing/selftests/arm64/fp/kernel-test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/arm64/fp/kernel-test.c b/tools/testing= /selftests/arm64/fp/kernel-test.c index e8da3b4cbd23202c6504ffd8043f8ef351d739f6..859345379044fc287458644309d= 66cf5f3d8bdf5 100644 --- a/tools/testing/selftests/arm64/fp/kernel-test.c +++ b/tools/testing/selftests/arm64/fp/kernel-test.c @@ -267,6 +267,10 @@ int main(void) strerror(errno), errno); =20 sa.sa_sigaction =3D handle_kick_signal; + ret =3D sigaction(SIGUSR1, &sa, NULL); + if (ret < 0) + printf("Failed to install SIGUSR1 handler: %s (%d)\n", + strerror(errno), errno); ret =3D sigaction(SIGUSR2, &sa, NULL); if (ret < 0) printf("Failed to install SIGUSR2 handler: %s (%d)\n", --=20 2.39.2