From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755425AbbCBOeL (ORCPT ); Mon, 2 Mar 2015 09:34:11 -0500 Received: from szxga01-in.huawei.com ([119.145.14.64]:42839 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754173AbbCBOZx (ORCPT ); Mon, 2 Mar 2015 09:25:53 -0500 From: Wang Nan To: , , , , CC: , , , Subject: [RFC PATCH v4 09/34] early kprobes: x86: add definition for vmlinux.lds use. Date: Mon, 2 Mar 2015 22:24:47 +0800 Message-ID: <1425306312-3437-10-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1425306312-3437-1-git-send-email-wangnan0@huawei.com> References: <1425306312-3437-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.197.247] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch defines MAX_OPTINSN_SIZE, MAX_INSN_SIZE and KPROBE_OPCODE_SIZE for x86 for vmlinux.lds.S use. Signed-off-by: Wang Nan --- arch/x86/kernel/vmlinux.lds.S | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 00bf300..e46d877 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -29,6 +29,16 @@ #undef i386 /* in case the preprocessor is a 32bit one */ +#ifdef CONFIG_EARLY_KPROBES +# define MAX_INSN_SIZE 16 +# define RELATIVE_ADDR_SIZE 4 +# define RELATIVEJUMP_SIZE 5 +# define KPROBE_OPCODE_SIZE 1 +# define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + RELATIVE_ADDR_SIZE) +# define MAX_OPTINSN_SIZE ((optprobe_template_end - optprobe_template_entry) + \ + MAX_OPTIMIZED_LENGTH + RELATIVEJUMP_SIZE) +#endif + OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT) #ifdef CONFIG_X86_32 -- 1.8.4