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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2D4EC43219 for ; Tue, 30 Apr 2019 17:05:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8EB6621670 for ; Tue, 30 Apr 2019 17:05:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726947AbfD3RFk (ORCPT ); Tue, 30 Apr 2019 13:05:40 -0400 Received: from foss.arm.com ([217.140.101.70]:50452 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726602AbfD3RFi (ORCPT ); Tue, 30 Apr 2019 13:05:38 -0400 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 B45BA15BF; Tue, 30 Apr 2019 10:05:37 -0700 (PDT) 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 5DA183F5C1; Tue, 30 Apr 2019 10:05:35 -0700 (PDT) From: Sudeep Holla To: x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sudeep Holla , Catalin Marinas , Will Deacon , Oleg Nesterov , Richard Weinberger , jdike@addtoit.com, Steve Capper , Haibo Xu , Bin Lu , Andy Lutomirski Subject: [PATCH v3 3/4] arm64: add PTRACE_SYSEMU{,SINGLESTEP} definations to uapi headers Date: Tue, 30 Apr 2019 18:05:19 +0100 Message-Id: <20190430170520.29470-4-sudeep.holla@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190430170520.29470-1-sudeep.holla@arm.com> References: <20190430170520.29470-1-sudeep.holla@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org x86 and um use 31 and 32 for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP while powerpc uses different value maybe for legacy reasons. Though handling of PTRACE_SYSEMU can be made architecture independent, it's hard to make these definations generic. To add to this existing mess few architectures like arm, c6x and sh use 31 for PTRACE_GETFDPIC (get the ELF fdpic loadmap address). It's not possible to move the definations to generic headers. So we unfortunately have to duplicate the same defination to ARM64 if we need to support PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP. Cc: Catalin Marinas Cc: Will Deacon Signed-off-by: Sudeep Holla --- arch/arm64/include/uapi/asm/ptrace.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h index d78623acb649..627ac57c1581 100644 --- a/arch/arm64/include/uapi/asm/ptrace.h +++ b/arch/arm64/include/uapi/asm/ptrace.h @@ -62,6 +62,9 @@ #define PSR_x 0x0000ff00 /* Extension */ #define PSR_c 0x000000ff /* Control */ +/* syscall emulation path in ptrace */ +#define PTRACE_SYSEMU 31 +#define PTRACE_SYSEMU_SINGLESTEP 32 #ifndef __ASSEMBLY__ -- 2.17.1