From nobody Wed Dec 08 21:07:16 2021 X-Original-To: toolchain@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 9DB1218E157F for ; Wed, 8 Dec 2021 21:07:16 +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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4J8V9J27q5z3p2j for ; Wed, 8 Dec 2021 21:07:16 +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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 29C721A264 for ; Wed, 8 Dec 2021 21:07:16 +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 1B8L7G75054316 for ; Wed, 8 Dec 2021 21:07:16 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 1B8L7G0h054315 for toolchain@FreeBSD.org; Wed, 8 Dec 2021 21:07:16 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: toolchain@FreeBSD.org Subject: [Bug 215193] libc++ and libcxxrt: convert to a private library Date: Wed, 08 Dec 2021 21:07:16 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: feature 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: toolchain@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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 List-Id: Maintenance of FreeBSD s integrated toolchain List-Archive: https://lists.freebsd.org/archives/freebsd-toolchain List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-toolchain@freebsd.org X-BeenThere: freebsd-toolchain@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1638997636; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HEvvzDkOga3sOGwcKr3l+TnXeijrQCPBJUuruGAVudU=; b=k9HigZHkD3hOQWcvf4pSxb8vcdZl3tEcEn5foKURLmqgCDCY/kz9jJ7Awzzms0Mf57tCUX LQ0A8ekqIN8Rzt1Ewp5B097bR6OsVEy2HDfShV1z6vY88Xs8TJPXWC17bg09Ekgu2exvE4 b0sBPXKGhvHC+7WgN4rNJa0AcDoSN4g0ZB2d+OBWToBCGFAfrqKCp2RdTX1n1boZMkJpPi Z/hZJ2zMCBttTsmNbJelfBACNtpFYlCHJbLTZt0P65Yq7bW27AUXxee9qHSX2aOusBwnq3 3Ys6JvpwuFxo8N0bZIlpxNmrJv5wyrteWrpgV5IE44DYZgAmfwziM2TH7D+cNw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1638997636; a=rsa-sha256; cv=none; b=D3nQesGxQX1QUc6NPFnWOkB+Zrt29Z3sfQ3C+kXqpCG0PaJYdilBNjocvTp9/C8yioGOyl fZUeZiKqEwzVGAdT5KnqtVkeLFvD88/16RZ8bUEBi6w4f3+NQrbUlzKiTXRHod1rImKpIR BUt1Q2YoAsNonovXh+EdqVOPZy2+E4IKgdZaBal5TCe8pN66n+kC03KKmAj8IkmLyM6R3p gZrUDYu4jKo0fgZN8mHdfPmItY7KTkZRNp5XNZRef/rx3KspaXYEriCgafxWDk16OWhKaX aHQ2BUhnmWsBA9o69e3L7ViwCTUnJ91/pVb/08vUpDvgEoe+Y1v9RG48o8kyzg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215193 Mark Millard changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |marklmi26-fbsd@yahoo.com --- Comment #5 from Mark Millard --- (In reply to David Chisnall from comment #2) For reference: https://releases.llvm.org/13.0.0/projects/libcxx/docs/DesignDocs/ABIVersion= ing.html reports . . . QUOTE Libc++ aims to preserve a stable ABI to avoid subtle bugs when code built u= nder the old ABI is linked with code built under the new ABI. At the same time, libc++ wants to make ABI-breaking improvements and bugfixes in scenarios wh= ere the user doesn=E2=80=99t mind ABI breaks. To support both cases, libc++ allows specifying an ABI version at build tim= e. The version is defined with CMake option LIBCXX_ABI_VERSION. Currently supported values are 1 (the stable default) and 2 (the unstable =E2=80=9Cne= xt=E2=80=9D version). At some point =E2=80=9CABI version 2=E2=80=9D will be frozen and = new ABI-breaking changes will start being applied to version 3; but this has not happened ye= t. To always use the most cutting-edge, most unstable ABI (which is currently 2 but at some point will become 3), set the CMake option LIBCXX_ABI_UNSTABLE. Internally, each ABI-changing feature is placed under its own C++ macro, _LIBCPP_ABI_XXX. These macros=E2=80=99 definitions are controlled by the C+= + macro _LIBCPP_ABI_VERSION, which is controlled by the LIBCXX_ABI_VERSION set at b= uild time. Libc++ does not intend users to interact with these C++ macros direct= ly. END QUOTE --=20 You are receiving this mail because: You are the assignee for the bug.=