From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by sourceware.org (Postfix) with ESMTPS id 7D75D38F8600 for ; Mon, 23 May 2022 12:59:10 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 7D75D38F8600 Received: by mail-pf1-x42e.google.com with SMTP id h13so7346612pfq.5 for ; Mon, 23 May 2022 05:59:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=lXISUmq8+WjGrJrDlisD+nD2thD0CLrUBitpy/Bdn8o=; b=aEEhRJJbfvqeiukNwiUC7qU7eVC1IN+D0zIkxNZ+lk91mYH9wLWGQPa8/9zfE0Atw7 O7R/u0ky7gGn5v05XX+ICWM/RWNNQhI7o6VTeb7QEuP/pB1sucqziYXj1WRSnguGMJFk 69aNYdn0I9MFY/BO1pES5HblT1dRt4vJ+QWuqj+n5wjfm2ORmGSlD79bsV3Pps2pobDv kUHxYkLnKXNJiogjMPGBTwJyce+1gJb38lNmMFar5FOfh8PqcpRtPYqICQ285BkMpzu2 tu0z6TyYpybLw2APqk654KbTD/PQBEx3/cb21XcyKAiOlurv1bL0BCKqjQBHg35sAPLv DFLw== X-Gm-Message-State: AOAM530BDgPZYEj051AxATjmnlEPlzsGZTU+NZe1VqsEfhkqWmbntLun Cv92qjmfujciBmCjyQZOZos= X-Google-Smtp-Source: ABdhPJwA9gIQ4yuS993T37m145vu2LyBVv8aWSbiODjoDksB2TX2Zz54hHDhOr1kZT7XaRvfi2UOJw== X-Received: by 2002:aa7:888c:0:b0:505:7832:98fc with SMTP id z12-20020aa7888c000000b00505783298fcmr23465698pfe.0.1653310749438; Mon, 23 May 2022 05:59:09 -0700 (PDT) Received: from squeak.grove.modra.org (158.106.96.58.static.exetel.com.au. [58.96.106.158]) by smtp.gmail.com with ESMTPSA id n10-20020a170903404a00b00161435e7475sm5001146pla.157.2022.05.23.05.59.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 May 2022 05:59:08 -0700 (PDT) Received: by squeak.grove.modra.org (Postfix, from userid 1000) id 41CA611401DF; Mon, 23 May 2022 22:29:05 +0930 (ACST) Date: Mon, 23 May 2022 22:29:05 +0930 From: Alan Modra To: lkcl Cc: Dmitry Selyutin , binutils@sourceware.org, Luke Kenneth Casson Leighton Subject: Re: Plugin-based opcode table Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-3031.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 May 2022 12:59:12 -0000 On Tue, May 17, 2022 at 03:01:48PM +0100, lkcl wrote: > On May 17, 2022 1:37:36 PM GMT+01:00, Dmitry Selyutin > wrote: > > > We've been thinking of some plugin, with obvious candidates being > >dlopen/dlsym combo. Sure the code will be public, as well as the whole > >work around libresoc and SVP64. > > ... but it would not be "endorsed" - implicitly and accidentally - by > the binutils team making decisions that are at odds with the direction > set by the OpenPOWER Foundation. > > prior to approval yes-or-no by OPF, a plugin system would not, i feel, > actually need endorsement *by* the OpenPOWER Foundation to go ahead: > that's more down to you, Alan. I don't see any need for the artificial boundaries you might get with a plugin, whatever that might look like. ppc-opc.c already supports multiple incompatible powerpc cpu implementations, including ones that depart significantly from current powerpc ISA documentation. Your new SVP64 design is not an orphan in that respect. I do not want to see "plugin" silliness out of fear of stepping on OPF's toes. The fact that some cpu is supported in ppc-opc.c has no bearing on ISA direction. The binutils project doesn't have that power, nor should it. -- Alan Modra Australia Development Lab, IBM