From patchwork Thu Feb 28 18:32:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep Holla X-Patchwork-Id: 159423 Delivered-To: patch@linaro.org Received: by 2002:ac9:18c7:0:0:0:0:0 with SMTP id i7csp987596oce; Thu, 28 Feb 2019 10:32:31 -0800 (PST) X-Google-Smtp-Source: APXvYqxQl6Ji03Qu2YkI4KM2iqLTKa2Pa29MHHwszTR8iyytGCskCXJ/MjFUvuBuA44cqroMLOFw X-Received: by 2002:a63:fd03:: with SMTP id d3mr486237pgh.359.1551378751047; Thu, 28 Feb 2019 10:32:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1551378751; cv=none; d=google.com; s=arc-20160816; b=0PZ2lscrhk8HBWNN+Pj5/EhpNg4oZcnJYwe25AuSsJ6yZnyrJ9EK0uxCRgrTd5wFD4 HJYuza1NcHyvuSXOq6yMsWNsrHhuc+4A990HE/travjDTCbJGJzBdCbsh3EQznpdXaZ7 yPNSgRPVc/yb6jZxlK2PN1snOZD7basKqJotkkPwlIo/A6ib8azv9ZWy4zvY3fQsscGl WFTWkz2+2pkTpVZ6fV00JEaefJA9ngic/I5p8/v80cQIIf92pOoNDHO3XPc6CBc9M5qt iIWWvB8IFh0279T4g5wdOX+RhVSSRr+RNfEGP9m7geqzjz50q3bIz2hqc+6tQIgW9I30 b88A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from; bh=p+on6G32+0Lfg4add3noRroLNoFqA0OQfoMz0eVtl/k=; b=YNxzJIH1DKmwSGcKCe7mXVzCSNAyteMyxrY+vvNG/KKV64gQq07wouLRHpQIEk+e03 KHn9tkzq6csAwyRzJ78txKLPT0BtGysZkovJ5LNve4UjRNkdA0xZYpXLUJg6A6sDOgzg 5BE4heWyLezr3p1e0fkuymXVFyLcP0dVxRSSWrTOFyYIknd7W7UQrMyciqNb5+FvPIEu b5RU/NKx69+Fr50XbD8JBmniMsMosmSz8S8PtOOUKteAPAJ8vWVTrnqXNMlPVdM6nhXa 1a5T4DyQdgtqhAeYdfmvwnxCgOaqYJg/xDAKBV1Nvk24Sup4ScaAjs2IeE2cQs3jCAye m/9A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id gn23si18941011plb.19.2019.02.28.10.32.30; Thu, 28 Feb 2019 10:32:31 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387449AbfB1Sc3 (ORCPT + 31 others); Thu, 28 Feb 2019 13:32:29 -0500 Received: from foss.arm.com ([217.140.101.70]:52828 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732645AbfB1Sc3 (ORCPT ); Thu, 28 Feb 2019 13:32:29 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A6BBBEBD; Thu, 28 Feb 2019 10:32:28 -0800 (PST) Received: from usa.arm.com (e107155-lin.cambridge.arm.com [10.1.196.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D5A523F5C1; Thu, 28 Feb 2019 10:32:25 -0800 (PST) From: Sudeep Holla To: x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Sudeep Holla , Catalin Marinas , Will Deacon , Oleg Nesterov , Paul Mackerras , Michael Ellerman , Thomas Gleixner , Ingo Molnar , Richard Weinberger , jdike@addtoit.com, Steve Capper , Haibo Xu , Bin Lu Subject: [PATCH 0/6] ptrace: consolidate PTRACE_SYSEMU handling and add support for arm64 Date: Thu, 28 Feb 2019 18:32:14 +0000 Message-Id: <20190228183220.15626-1-sudeep.holla@arm.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This patchset evolved from the discussion in the thread[0][1]. When we wanted to add PTRACE_SYSEMU support to ARM64, we thought instead of duplicating what other architectures like x86 and powerpc have done, let consolidate the existing support and move it to the core as there's nothing arch specific in it. So this is the first attempt to the same. Regards, Sudeep [0] https://patchwork.kernel.org/patch/10585505/ [1] https://patchwork.kernel.org/patch/10675237/ Sudeep Holla (6): ptrace: move clearing of TIF_SYSCALL_EMU flag to core ptrace: introduce ptrace_syscall_enter to consolidate PTRACE_SYSEMU handling x86: clean up _TIF_SYSCALL_EMU handling using ptrace_syscall_enter hook powerpc: use common ptrace_syscall_enter hook to handle _TIF_SYSCALL_EMU arm64: add PTRACE_SYSEMU{,SINGLESTEP} definations to uapi headers arm64: ptrace: add support for syscall emulation arch/arm64/include/asm/thread_info.h | 5 ++- arch/arm64/include/uapi/asm/ptrace.h | 3 ++ arch/arm64/kernel/ptrace.c | 3 ++ arch/powerpc/kernel/ptrace.c | 51 ++++++++++++---------------- arch/x86/entry/common.c | 22 +++--------- arch/x86/kernel/ptrace.c | 3 -- include/linux/ptrace.h | 1 + kernel/ptrace.c | 20 +++++++++++ 8 files changed, 57 insertions(+), 51 deletions(-) -- 2.17.1