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 1AD1626B08D; Thu, 13 Feb 2025 14:52:52 +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=1739458372; cv=none; b=jT15ZY/zotznc5uQvh0bbokAQ1Co+EAJab3auWjnLTLc3qKPnPTkVlZnGE+OX0FuI3qlvBpWcZTY1DdUrOnYv7sDObmabt9muogiCWqMYYaHVfiIENbOzm9RARHzXjRkbMg5s13iOWREczSMHDcZ1xf16tGXv3JpXseMTkgC3L4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739458372; c=relaxed/simple; bh=RYKlpUzax2uDLhNruf0xJi+sgFWddeEI8moAnvBI3Bo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=T38wE2VDII/X2iromBzE9x66tA4OUVyonwakVKA2AZoCbII0LMtq8+lKLVXqMtRdrMQeWRJ0gl1UCfZOfWSJ/Ju9sl5u0jLqRne2Mn1Rossv7DCuwVrG9nAuL7JsRMrUk82G204X8RgSj0SVu1ZFnkXGvWtlh51ZcoInng2TN2o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bnxHrFVv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="bnxHrFVv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 80E66C4CED1; Thu, 13 Feb 2025 14:52:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1739458372; bh=RYKlpUzax2uDLhNruf0xJi+sgFWddeEI8moAnvBI3Bo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bnxHrFVv8mPEj9Q60VeXSk/p7+3ThMCn1ObyzeHdRhhwNXVB5E4F+wuXMKjU2qWNH ftXdIbDeu1UmZELZKlu593NHtC+Wlcsef0vGk8idLt+Bk9U5Um5m0yB6HOZoLS0bf3 mlonZeVpQQ0oEC68Xd0YU5rcX2iGFECAVMQdHvTc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jan Kiszka , Barry Song , Kieran Bingham , Andrew Morton Subject: [PATCH 6.12 381/422] scripts/gdb: fix aarch64 userspace detection in get_current_task Date: Thu, 13 Feb 2025 15:28:50 +0100 Message-ID: <20250213142451.249900514@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250213142436.408121546@linuxfoundation.org> References: <20250213142436.408121546@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jan Kiszka commit 4ebc417ef9cb34010a71270421fe320ec5d88aa2 upstream. At least recent gdb releases (seen with 14.2) return SP_EL0 as signed long which lets the right-shift always return 0. Link: https://lkml.kernel.org/r/dcd2fabc-9131-4b48-8419-6444e2d67454@siemens.com Signed-off-by: Jan Kiszka Cc: Barry Song Cc: Kieran Bingham Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- scripts/gdb/linux/cpus.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -167,7 +167,7 @@ def get_current_task(cpu): var_ptr = gdb.parse_and_eval("&pcpu_hot.current_task") return per_cpu(var_ptr, cpu).dereference() elif utils.is_target_arch("aarch64"): - current_task_addr = gdb.parse_and_eval("$SP_EL0") + current_task_addr = gdb.parse_and_eval("(unsigned long)$SP_EL0") if (current_task_addr >> 63) != 0: current_task = current_task_addr.cast(task_ptr_type) return current_task.dereference()