From owner-freebsd-ppc@freebsd.org Mon Apr 20 01:49:56 2020 Return-Path: Delivered-To: freebsd-ppc@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 707072B27D4 for ; Mon, 20 Apr 2020 01:49:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4958lS2Ptgz4P2F for ; Mon, 20 Apr 2020 01:49:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by freefall.freebsd.org (Postfix) id 45C971928; Mon, 20 Apr 2020 01:49:56 +0000 (UTC) Delivered-To: powerpc@localmail.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits)) (Client CN "mx1.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by freefall.freebsd.org (Postfix) with ESMTPS id 427BB177D for ; Mon, 20 Apr 2020 01:49:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4958lS03d5z4P2D for ; Mon, 20 Apr 2020 01:49:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id F1A887A5D for ; Mon, 20 Apr 2020 01:49:55 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 03K1nthX098156 for ; Mon, 20 Apr 2020 01:49:55 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 03K1ntDv098155 for powerpc@FreeBSD.org; Mon, 20 Apr 2020 01:49:55 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: powerpc@FreeBSD.org Subject: [Bug 243958] net-p2p/libtorrent-rasterbar : Fails to build on FreeBSD 12.1-RELEASE-p1 powerpc 32 bit : libtorrent-rasterbar.so.1.2.3: undefined reference to `__atomic_compare_exchange_8' Date: Mon, 20 Apr 2020 01:49:55 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Ports & Packages X-Bugzilla-Component: Individual Port(s) X-Bugzilla-Version: Latest X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: marklmi26-fbsd@yahoo.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: pkubaj@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback+ X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Apr 2020 01:49:56 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D243958 --- Comment #11 from Mark Millard --- (In reply to Piotr Kubaj from comment #9) For head, if gcc* is to match the system clang code that is currently produced by default, gcc* needs to be told to use -maix-struct-return instead of its default -msvr4-struct-return . It will be this way until system-clang itself is updated to use the historical -msvr4-struct-return style that was in use prior to the conversion to using clang as the system compiler for 32-bit powerpc. This, unfortunately, is a mismatch with prior-to-head versions of 32-bit FreeBSD: for those -maix-struct-return in a gcc* would be wrong and would introduce an ABI difference. I'll note that, when code on head hits the ABI difference, it treats non-pointer-values as pointer values and tries to dereference or update memory through the garbage addresses. (FYI: I'm a tester of the llvm proposal, so my context is non-default for the system-clang behavior for targeting 32-bit powerpc.) --=20 You are receiving this mail because: You are on the CC list for the bug.=