Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755259AbbBOIgW (ORCPT ); Sun, 15 Feb 2015 03:36:22 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:26600 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752321AbbBOIgU (ORCPT ); Sun, 15 Feb 2015 03:36:20 -0500 From: Wang Nan To: CC: , , , , Subject: [RFC PATCH 2/3] early kprobes: x86: add definition for vmlinux.lds use. Date: Sun, 15 Feb 2015 16:27:09 +0800 Message-ID: <1423988829-7258-1-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1423988798-7104-1-git-send-email-wangnan0@huawei.com> References: <1423988798-7104-1-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 X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020202.54E059FE.00F8,ss=1,re=0.001,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 1f2fc7e81e436392fa82ae2970d10321 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1214 Lines: 37 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/