From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gproxy4-pub.mail.unifiedlayer.com (gproxy4-pub.mail.unifiedlayer.com [69.89.23.142]) by sourceware.org (Postfix) with ESMTPS id 5105C3858D1E for ; Tue, 3 Jan 2023 17:04:42 +0000 (GMT) Received: from cmgw10.mail.unifiedlayer.com (unknown [10.0.90.125]) by progateway6.mail.pro1.eigbox.com (Postfix) with ESMTP id 3CB95100414F3 for ; Tue, 3 Jan 2023 17:04:27 +0000 (UTC) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with ESMTP id CkiBpJQudWC90CkiBp9aP8; Tue, 03 Jan 2023 17:04:27 +0000 X-Authority-Reason: nr=8 X-Authority-Analysis: v=2.4 cv=Huizp2fS c=1 sm=1 tr=0 ts=63b4601b a=ApxJNpeYhEAb1aAlGBBbmA==:117 a=ApxJNpeYhEAb1aAlGBBbmA==:17 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=RvmDmJFTN0MA:10:nop_rcvd_month_year a=Qbun_eYptAEA:10:endurance_base64_authed_username_1 a=CCpqsmhAAAAA:8 a=fW3ccElDANZO147fqI4A:9 a=ul9cdbp4aOFLsgKbc677:22 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References :Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=/n6VnRiUnmlJWXdzwDzVjiVA4pob2djX+Cp2Sqj9ZOw=; b=LD67oJJDxQQdT84aOuavGW6z4s wrYDi6VogctV2AAvkUFTBkpIknH3OL1rUgHeIUoUnwxNXIMwYukaV93Z1sWqU9hl+M/Rv7Xzf7Mrd pJH4uUJpG0PDnbItVIyYOoXk0; Received: from 97-122-76-186.hlrn.qwest.net ([97.122.76.186]:39282 helo=murgatroyd) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pCkiA-000L5p-Ln; Tue, 03 Jan 2023 10:04:26 -0700 From: Tom Tromey To: Bruno Larsen via Gdb-patches Cc: Bruno Larsen , Eli Zaretskii Subject: Re: [PATCH v3] gdb: add 'maintenance print record-instruction' command References: <20221222154338.2223678-1-blarsen@redhat.com> X-Attribution: Tom Date: Tue, 03 Jan 2023 10:04:23 -0700 In-Reply-To: <20221222154338.2223678-1-blarsen@redhat.com> (Bruno Larsen via Gdb-patches's message of "Thu, 22 Dec 2022 16:43:39 +0100") Message-ID: <87lemjim7c.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.76.186 X-Source-L: No X-Exim-ID: 1pCkiA-000L5p-Ln X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-76-186.hlrn.qwest.net (murgatroyd) [97.122.76.186]:39282 X-Source-Auth: tom+tromey.com X-Email-Count: 1 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3022.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,JMQ_SPF_NEUTRAL,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: >>>>> "Bruno" == Bruno Larsen via Gdb-patches writes: Bruno> While chasing some reverse debugging bugs, I found myself wondering what Bruno> was recorded by GDB to undo and redo a certain instruction. This commit Bruno> implements a simple way of printing that information. Thanks for doing this. Bruno> --- a/gdb/NEWS Bruno> +++ b/gdb/NEWS Bruno> @@ -107,6 +107,12 @@ Bruno> * New commands Bruno> +maintenance print record-instruction [ N ] Bruno> + Print the recorded information for a given instruction. If N is not given Bruno> + prints how GDB would undo the last instruction executed. If N is negative, Bruno> + prints how GDB would undo the N-th previous instruction, and if N is Bruno> + positive, it prints how GDB will redo the N-th following instruction. You'll probably have to update this a bit to apply it to trunk, so that it doesn't end up in the gdb 13 section. I looked through the thread, the updated patch is ok with the NEWS change. Tom