From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 95EC3CA600A for ; Thu, 8 Oct 2026 07:57:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:To:Subject :MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=C4HbqLovK92A6TAwb6P9llvvE6m7BStHvYxN8zYGpyw=; b=Je4rN5hSqRTE6X encLUMvYqKRqgQ0/tHzfDPR1gTGAMw65eWUdpkIuKUcmF23KQuRAxN5hrO+fEhIE2eNR3sUzdYWL4 QX8K+TAyx19h0WRBLERccSx4x/tshWQRVcQbBzMcEaohvR3CSWeUYrLy/OnG28eCXbZmNybmVwL0s +1a1hmGca5kAOHWOlf2EKyAnEM6mJfqPWeMt0a0krpvVShuSgfc9taUoBNygPx9FZOv32xtzlf6gE oZgDq/sYNcSFadSsdilLYhIGQoLUELf2Yg5NAfIozQd6XVlLtvgqUtG1r+sBosjXACj41U5x8O5kW dekwi9sCeQAnM9+GHC6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xEizq-00000003o9R-1bjI; Thu, 08 Oct 2026 07:56:58 +0000 Received: from canpmsgout10.his.huawei.com ([113.46.200.225]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xEizn-00000003o8r-2J38 for linux-arm-kernel@lists.infradead.org; Thu, 08 Oct 2026 07:56:57 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=C4HbqLovK92A6TAwb6P9llvvE6m7BStHvYxN8zYGpyw=; b=qv9HfR3QrszT10UTjPpYwRDXkRXy6+IUUZu1DdDU9d47C5a8siP68NwU2ZltaChZlMwVNvN4e KC3GtRwt4NOQRzhUPjsF06rPBjU36zSnCgsvQM7gHQgXCAixv6WM0DRyqxnUAU4u/0wXNhRv5Ae nY6lpLYIMKWJQM38y9fVd10= Received: from mail.maildlp.com (unknown [172.19.163.163]) by canpmsgout10.his.huawei.com (SkyGuard) with ESMTPS id 4j0hpS1F12z1K9D2; Thu, 8 Oct 2026 15:44:32 +0800 (CST) Received: from kwepemk200008.china.huawei.com (unknown [7.202.194.74]) by mail.maildlp.com (Postfix) with ESMTPS id E0B524048B; Thu, 8 Oct 2026 15:56:46 +0800 (CST) Received: from [10.67.110.68] (10.67.110.68) by kwepemk200008.china.huawei.com (7.202.194.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Thu, 8 Oct 2026 15:56:46 +0800 Message-ID: Date: Thu, 8 Oct 2026 15:56:44 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 08/21] scripts/gdb: arm64: Use TPIDRRO_EL0 instead of SP_EL0 for 'current' To: Will Deacon , References: <20260918161407.2300-1-will@kernel.org> <20260918161407.2300-9-will@kernel.org> From: Jinjie Ruan In-Reply-To: <20260918161407.2300-9-will@kernel.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.67.110.68] X-ClientProxiedBy: kwepems200001.china.huawei.com (7.221.188.67) To kwepemk200008.china.huawei.com (7.202.194.74) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261008_005655_737435_8966B47D X-CRM114-Status: GOOD ( 12.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Vladimir Murzin , Arnd Bergmann , Catalin Marinas , Linus Walleij , linux-kernel@vger.kernel.org, Mostafa Saleh , Marc Zyngier , David Hildenbrand , Lorenzo Stoakes , Oliver Upton , Ard Biesheuvel Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 在 2026/9/19 0:13, Will Deacon 写道: > The current task pointer now lives in TPIDRRO_EL0 instead of SP_EL0, so > update the gdb 'cpus.py' helper script with the new register allocation. > > Cc: Mark Rutland > Signed-off-by: Will Deacon > --- > scripts/gdb/linux/cpus.py | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py > index 6edf4ef61636..547a623280ae 100644 > --- a/scripts/gdb/linux/cpus.py > +++ b/scripts/gdb/linux/cpus.py > @@ -185,7 +185,7 @@ def get_current_task(cpu): > var_ptr = gdb.parse_and_eval("¤t_task") > return per_cpu(var_ptr, cpu).dereference() > elif utils.is_target_arch("aarch64"): > - current_task_addr = gdb.parse_and_eval("(unsigned long)$SP_EL0") > + current_task_addr = gdb.parse_and_eval("(unsigned long)$TPIDRRO_EL0") Reviewed-by: Jinjie Ruan > if (current_task_addr >> 63) != 0: > current_task = current_task_addr.cast(task_ptr_type) > return current_task.dereference() -- Best regards, Jinjie