From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gproxy3-pub.mail.unifiedlayer.com (gproxy3-pub.mail.unifiedlayer.com [69.89.30.42]) by sourceware.org (Postfix) with ESMTPS id 6C627385840F for ; Fri, 24 Feb 2023 20:22:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6C627385840F Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=tromey.com Received: from cmgw11.mail.unifiedlayer.com (unknown [10.0.90.126]) by progateway5.mail.pro1.eigbox.com (Postfix) with ESMTP id E320C1004A840 for ; Fri, 24 Feb 2023 20:22:28 +0000 (UTC) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with ESMTP id VeaKpht9f3nuFVeaKpHDRX; Fri, 24 Feb 2023 20:22:28 +0000 X-Authority-Reason: nr=8 X-Authority-Analysis: v=2.4 cv=LYn5VhTi c=1 sm=1 tr=0 ts=63f91c84 a=ApxJNpeYhEAb1aAlGBBbmA==:117 a=ApxJNpeYhEAb1aAlGBBbmA==:17 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=m04uMKEZRckA:10:nop_rcvd_month_year a=Qbun_eYptAEA:10:endurance_base64_authed_username_1 a=PqaKSTz1AAAA:8 a=eDPEVLwBGR4G5BKG7icA:9 a=DVSXDjGpHxk0zPZjvwYD: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=QS3BRISkXrI4abpACG4LIglyRHzzKcM2MuXEIUXb89E=; b=dJtT+fZSyx+FAE3qx27bXDe6gs 0Sbq1wCNTDtRE/b8tIrLNkrtmpr0V6OTs51yXzREgPgl1+IsNfkr8zb23R9279BdPwWVa8AB1bB30 R+cfKkcvxaSPCHa5gLmL96y/T; Received: from 75-166-130-93.hlrn.qwest.net ([75.166.130.93]:54886 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 1pVeaK-002qpQ-LY; Fri, 24 Feb 2023 13:22:28 -0700 From: Tom Tromey To: Levo D Cc: Subject: Re: Hide variables? References: <20230222050804.9B8FA17750B@bolin> X-Attribution: Tom Date: Fri, 24 Feb 2023 13:22:22 -0700 In-Reply-To: <20230222050804.9B8FA17750B@bolin> (Levo D.'s message of "Wed, 22 Feb 2023 05:08:04 +0000 (UTC)") Message-ID: <87pm9yg6f5.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (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: 75.166.130.93 X-Source-L: No X-Exim-ID: 1pVeaK-002qpQ-LY X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-130-93.hlrn.qwest.net (murgatroyd) [75.166.130.93]:54886 X-Source-Auth: tom+tromey.com X-Email-Count: 2 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3020.8 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: >>>>> "Levo" == Levo D writes: Levo> I'm generating c source. The code isn't sophisticated yet so there's a Levo> lot of unnamed temporary variables. Would it be possible to have gdb Levo> hide them? Is there a prefix I can use (like _hiddenMyVarName), or a Levo> way to use a pretty printer to hide them? Is there a standard tool to Levo> strip the variables from the binary? I use 3 compilers with gdb, Levo> clang, gcc and tcc (tiny c compiler). I found a solution for clang but Levo> it doesn't work with gcc or tcc I think the answer is pretty much "no" to all. If you can convince the compiler to mark them DW_AT_artificial then perhaps they'd be hidden. Even then I'm not 100% certain. You could maybe write a frame filter to do this for 'bt' but it won't be used in other situations. Tom