From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753558AbaCMKMo (ORCPT ); Thu, 13 Mar 2014 06:12:44 -0400 Received: from mail-pb0-f48.google.com ([209.85.160.48]:34860 "EHLO mail-pb0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752829AbaCMKMm (ORCPT ); Thu, 13 Mar 2014 06:12:42 -0400 From: AKASHI Takahiro To: will.deacon@arm.com Cc: viro@zeniv.linux.org.uk, eparis@redhat.com, rgb@redhat.com, catalin.marinas@arm.com, dsaxena@linaro.org, arndb@arndb.de, linux-arm-kernel@lists.infradead.org, linaro-kernel@lists.linaro.org, linux-kernel@vger.kernel.org, linux-audit@redhat.com, AKASHI Takahiro Subject: [PATCH v4 0/3] arm64: prerequisites for audit and ftrace Date: Thu, 13 Mar 2014 19:11:28 +0900 Message-Id: <1394705491-12343-1-git-send-email-takahiro.akashi@linaro.org> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1393564465-3862-1-git-send-email-takahiro.akashi@linaro.org> References: <1393564465-3862-1-git-send-email-takahiro.akashi@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset contains some patches commonly applied for audit and ftrace. Patch [1/3] defines syscall trace related TIF_* flags in order to add hooks, including ftrace, audit and seccomp, later on. Those features will be implemented in separate patchsets, but it's safe to check for all TIF_* now because they can not be turned on anyway. Patch [2/3] doesn't change a behavior but make it easy and manageable to confirm we invoke those hooks in correct order by splitting syscall_trace(). Patch [3/3] adds a commonly used function, which returns a return value of system call. Changes v3 -> v4: * added "arm64: split syscall_trace() into separate functions for enter/ exit", which is just a preparation for adding syscall trace hooks later. Changes v2 -> v3: * reverted a change in syscall_trace() in v1 [1/2] * added "arm64: Add regs_return_value() in syscall.h" patch which was previously included in audit patch [2/2] Changes v1 -> v2: * added a guard against TIF_SYSCALL_TRACE at tracehook_report_syscall_*() * renamed _TIF_WORK_SYSCALL to _TIF_SYSCALL_WORK AKASHI Takahiro (3): arm64: make a single hook to syscall_trace() for all syscall features arm64: split syscall_trace() into separate functions for enter/exit arm64: Add regs_return_value() in syscall.h arch/arm64/include/asm/ptrace.h | 5 ++++ arch/arm64/include/asm/thread_info.h | 13 +++++++++ arch/arm64/kernel/entry.S | 15 +++++------ arch/arm64/kernel/ptrace.c | 48 ++++++++++++++++++++++++++-------- 4 files changed, 62 insertions(+), 19 deletions(-) -- 1.7.9.5