From patchwork Tue Apr 30 17:05:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep Holla X-Patchwork-Id: 163140 Delivered-To: patch@linaro.org Received: by 2002:a92:7e86:0:0:0:0:0 with SMTP id q6csp3487295ill; Tue, 30 Apr 2019 10:05:42 -0700 (PDT) X-Google-Smtp-Source: APXvYqxvtWGsLzEcRDI0WgSt62/mTtTr0/aOR0AuJQ+RwrKi4TWYU1ACFcbZCSCLj5CAuvM6d02E X-Received: by 2002:a65:480c:: with SMTP id h12mr66654553pgs.266.1556643942822; Tue, 30 Apr 2019 10:05:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556643942; cv=none; d=google.com; s=arc-20160816; b=HjOFpEtKKfOutfoPbO1lTLe2pPf/ufvFZbFAeLIrq0+e15ol5WRPwQq6GgLkR8s4ny hQMAQPa6DCVeOcAAjk9E6K8tWzJ4ry69ufJ0kWAl0EBhszENQWPhdryIPnnUZww/zlSa v9DdmqSaNE1fRpHWNej40NCX/Z6PH6w8df3OC5p3XUivWIW7tLQKUuP1rXx6mM9jk4oI XHUfFhL/JisbUX0U7va++Wl9t+/sqXn2OWq15E+Szct45X/yr3V9U7mY4XSPSjL8AKa9 AfzH3KTqSyjCsbP4lik7fPVEZ25AF0XfY8Bq3+hAshZ+0VvGwE9E0oGx7FLnDoC3wPM9 yeng== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from; bh=g5QQEGQLW//t5dOUXT0AbO58BS980jp6eytiOL7yUPE=; b=DlbVueAwbyl8TZX75fgmpM75LyU7le7ROQMYkKnz4rytbKgWd8gT272DWWCTV1veZY PN60JYNLpAcuO+Cx3Qwyn7zCCIn4OLV4ozzoZSZUETDY+9tSC/BfStg+/ihbDA4q3yOy +AxDZWeC2IR42UuWuloXTz9KKuzMQb8zqdGNO6PkIeX9zm9Zox8zDGYDKPST1/exVe4X F7FQQeWslFeiZdDDceLDL0DGr5uNxq0VHGAs26CMp4VVRxI5z+rd5nFLmDI+V4H/7QMu yjlPcblLHZPu3DoHKm29t/s21CLftbkmmtc7BTsswgJqaYTv5xczdU0dvoIgQF6Lo0fh 7uRw== 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 t61si996955plb.93.2019.04.30.10.05.42; Tue, 30 Apr 2019 10:05:42 -0700 (PDT) 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 S1726947AbfD3RFk (ORCPT + 30 others); 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(+) -- 2.17.1 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__