From patchwork Tue Jul 12 02:15:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Huafei X-Patchwork-Id: 12914459 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 007FDC433EF for ; Tue, 12 Jul 2022 02:19:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=ecqVzBgyeVaoxGVdPhCHxNCYudOFEeVVqsTT3cE/5ek=; b=vT1oseLQT2XJue sz3PcKSbnKyIJOFuMtuNmY8ax6N3meZk/jHi4DnNEo3PnNUVXgeI9LSDpF2gLX76fN4MrWRLcZwbg HNqw5v+AU2Im/ar+fzjK41BQ+uJM605mghCeMEdj+k90UXoqe3/FvpDvB3fBTdBnycFb+nJgrcSH9 XE29QGWO0+gC6PkLPeSKWkPk6LBCRhdh/+wLvmmtK5bGZQicbIN1gXMTXFxpDGK32sS0btVddrD+7 X0sNhQcyuYTdFovbgzRefVXOmYOaYxxs5AOWjFnUtpe4dcb+8DW7EdE7ToRlRYaJUEawZZhvbuX+3 d2tTCup/c00Pjl8wNxvQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oB5TP-006gZT-Nm; Tue, 12 Jul 2022 02:18:03 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oB5TL-006gTq-Pq for linux-arm-kernel@lists.infradead.org; Tue, 12 Jul 2022 02:18:01 +0000 Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4LhkpF2lZnzVff6; Tue, 12 Jul 2022 10:14:13 +0800 (CST) Received: from kwepemm600010.china.huawei.com (7.193.23.86) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 12 Jul 2022 10:17:54 +0800 Received: from ubuntu1804.huawei.com (10.67.174.174) by kwepemm600010.china.huawei.com (7.193.23.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 12 Jul 2022 10:17:53 +0800 From: Li Huafei To: , , , CC: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH 0/5] ARM: Convert to ARCH_STACKWALK Date: Tue, 12 Jul 2022 10:15:22 +0800 Message-ID: <20220712021527.109921-1-lihuafei1@huawei.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.67.174.174] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemm600010.china.huawei.com (7.193.23.86) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220711_191800_048454_4617559C X-CRM114-Status: UNSURE ( 6.62 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series mainly updates the ARM stack trace code to use the newer and simpler arch_stack_walk() interface. Two issues were fixed before that (see patch 1 and 2), as well as allowing stack_trace_save_tsk() to trace non-current tasks (see patch 3). Li Huafei (5): ARM: stacktrace: Skip frame pointer boundary check for call_with_stack() ARM: stacktrace: Avoid duplicate saving of exception PC value ARM: stacktrace: Allow stack trace saving for non-current tasks ARM: stacktrace: Make stack walk callback consistent with generic code ARM: stacktrace: Convert stacktrace to generic ARCH_STACKWALK arch/arm/Kconfig | 1 + arch/arm/include/asm/stacktrace.h | 8 +- arch/arm/kernel/perf_callchain.c | 9 +- arch/arm/kernel/return_address.c | 9 +- arch/arm/kernel/stacktrace.c | 195 +++++++++++++----------------- arch/arm/lib/call_with_stack.S | 2 + 6 files changed, 105 insertions(+), 119 deletions(-)