From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 427A41F461 for ; Fri, 12 Jul 2019 02:06:04 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:cc:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=gvllMfEEjYnhI2WM 91xR4gQKNiQNJVZ757RUe7J15wDJSE5MpJIPuHhmbwEnoT16/qezj+wkigeMBz49 gNe8b93ZE0OKSjXZW3JhqLZs3wpTD0SAyua/XQkIs2gGw8t3Z75KEvNeAHxvWK2R zIIgLkDnt+3kkxcsGUv8/R1PaeU= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:cc:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; s=default; bh=B+pgtRD8mgxEz3LdJjGrWO uGBiY=; b=Fqp94zNZuO9AfnOu+pCYf9qfLDdhV/qshm3nZsBncnJAo9PAhxurcV r01vpFtKmuXLJHo+8SE01fLSZVBvN+RXECLyhIu0dmj4Ap8hxpnBphojxi1+4RRd britpNYPKl/sOzwhg78YTy4lxJeCxlL8EQOIJ4z7NtWrbE5+YzPXM= Received: (qmail 39403 invoked by alias); 12 Jul 2019 02:06:01 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 39389 invoked by uid 89); 12 Jul 2019 02:06:01 -0000 Authentication-Results: sourceware.org; auth=none X-HELO: mail-qt1-f171.google.com Subject: Re: CPython vs libstdc++ To: Zack Weinberg , GNU C Library , libstdc++@gcc.gnu.org Cc: Sumana Harihareswara References: From: Carlos O'Donell Message-ID: Date: Thu, 11 Jul 2019 22:05:56 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit On 7/11/19 12:13 PM, Zack Weinberg wrote: > I have been investigating a mysterious problem with Python extension > modules that use C++ internally. If I'm right about the cause, I > suspect that it can't be fixed without changes to the dynamic linker, > and I think we may need to have a dialogue between Python core > maintainers and GNU toolchain maintainers to figure out what Python > wants to be possible and how much of that is feasible for GCC and > glibc to support. I agree completely. I try to stay integrated into Python (manylinux issues), Ruby (malloc issues), llvm lld (CET markup), and other toolchain issues and language issues. Do you have a bug # or something where we can discuss the issue upstream with the Python developers in question? -- Cheers, Carlos. P.S. Makes me think of this: https://www.slideshare.net/StefanusDuToit/cpp-con-2014-hourglass-interfaces-for-c-apis