From nobody Fri Aug 7 10:35:05 2026 X-Original-To: dev-commits-src-branches@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 4hGgWs6282z6mpdN for ; Fri, 07 Aug 2026 10:35:05 +0000 (UTC) (envelope-from git@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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hGgWs2kLSz3rK1 for ; Fri, 07 Aug 2026 10:35:05 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1786098905; 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; bh=27ZT2aruAmIPWelwbBaEZKnpyo9vFiR9TmIQNuLQdWM=; b=IIqjik8D4XuJUCcraawhX0aA+kpsQYyH/Cj5CRxZERhc1K6uQ9RhXIOrPhnLHPmLRYKY5f HZUJFMqlB6TvxGKMQ/Snahgq/QkYXji3uSEocBRT7xIH28eNf5Xdey04TCPr9eftpaMvsO IO4Xi4AW8PiDjEu+RdCViBKIzrNJH2fDzE9ALYJQFruiisKQu8VsBgai+HP8DUra+Sa+z9 7iiwPI1I8p412WgFVmVAb9Bd4KBwhPLcsEkrM0hdAu8OJ/UOKW3OfcBdPosXfnw54RKcch 5MN7MA4VA0G6hcjs8fS2g9CISIu/O80335sfHDuycvhLAyq/8YiI/pe5TrjmDg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1786098905; a=rsa-sha256; cv=none; b=L7jCKhCUIFO2CkOtxd+PIpNjgprFcPPbO1RiinxioT8yJWad9K4JuQEnoZMu4F/0RbvRna tvLhXCHj6kmAoFc2QDfb0l6ICA7L3U6G+OvINZiHZ3tX9yQEBPljD7aIqo7VCBDPdRmZJM T+b8OjvaFoooqHDOA65LtHgp1MXZ7bzxyfaD/YQQTbyZ82xoMosU2UQe21F5Gm2AU+r5dF Q8JJjqKFD56yzpQ9V+9Msf5d0EY0FycAeNRBRaCf9H3hQQOVH4yynCZH8iydKz8gmcwwBg IoXYgFvUatJBvvXTF4znPTnUfFB+xuqNRN0Yti7mkvLt2TweOEUYZxeMmTTrDA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1786098905; 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; bh=27ZT2aruAmIPWelwbBaEZKnpyo9vFiR9TmIQNuLQdWM=; b=I3PHH0LHttkM9/QAgR5zALETzcrbwCUatgRHFYbLY5rlg18qSK1HN5/QsCshGe4q8Y+x3D rcatioC6z/pRgsCSS8uBqsLNwfpXwxmS+sNbe3poEuqDBG98F4pCnFM7bQqLKGdAeKxQ/5 6GHgyuv0rcUL3rW8yZaUnscSClgUbsu1iuQiXYI26eXq62WSrOm5QVViXBJv2To5uGnSDQ sSjbe5ZsoHvX1SZpnKgkxW2G/bpdKWfHbR4GAjqspQNyhQlAVuD52Rmp15tN8e6Xwj5Clj WovlDTV/lUxuMKOEBtGzaz9Ed7YBQSKNHLLUGlVoYVZKzKuvtA1K8D/cI3Pztw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hGgWs1dtlz13Hj for ; Fri, 07 Aug 2026 10:35:05 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 23eb3 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Fri, 07 Aug 2026 10:35:05 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: 2947a48bea3b - stable/15 - amd64: try to fix the build with old clang that does not know about FRED List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: 2947a48bea3b720e58f3a2e1d6740789e9cc259a Auto-Submitted: auto-generated Date: Fri, 07 Aug 2026 10:35:05 +0000 Message-Id: <6a75b4d9.23eb3.4e62c32c@gitrepo.freebsd.org> The branch stable/15 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=2947a48bea3b720e58f3a2e1d6740789e9cc259a commit 2947a48bea3b720e58f3a2e1d6740789e9cc259a Author: Konstantin Belousov AuthorDate: 2026-07-30 09:45:51 +0000 Commit: Konstantin Belousov CommitDate: 2026-08-07 10:27:34 +0000 amd64: try to fix the build with old clang that does not know about FRED (cherry picked from commit 72952bf6a307391e127d3ab4a6f073664ce62d89) --- sys/amd64/amd64/exception.S | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/sys/amd64/amd64/exception.S b/sys/amd64/amd64/exception.S index 8eb5c185974d..0e783fe4ff00 100644 --- a/sys/amd64/amd64/exception.S +++ b/sys/amd64/amd64/exception.S @@ -1403,6 +1403,23 @@ gsbase_load_fault: movq $0,PCB_GSBASE(%r8) jmp doreti +#if defined(__clang__) && (__clang_major__ <= 18) + .macro lkgs reg + .if \reg != %ax + .err "Only %ax is supported" + .endif + .byte 0xf2, 0x0f, 0x00, 0xf0 + .endm + + .macro eretu + .byte 0xf3, 0x0f, 0x01, 0xca + .endm + + .macro erets + .byte 0xf2, 0x0f, 0x01, 0xca + .endm +#endif + /* * FRED guarantees that on entry, %rflags is set to '2', which in * particular means that interrupts are disabled, and DF/AC are clear.