From owner-svn-src-all@freebsd.org Mon Jun 15 20:12:11 2020 Return-Path: Delivered-To: svn-src-all@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 7C896342800; Mon, 15 Jun 2020 20:12:11 +0000 (UTC) (envelope-from trasz@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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49m2YR2n9sz3SXr; Mon, 15 Jun 2020 20:12:11 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5ADC223433; Mon, 15 Jun 2020 20:12:11 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 05FKCBNT054076; Mon, 15 Jun 2020 20:12:11 GMT (envelope-from trasz@FreeBSD.org) Received: (from trasz@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 05FKCBNU054075; Mon, 15 Jun 2020 20:12:11 GMT (envelope-from trasz@FreeBSD.org) Message-Id: <202006152012.05FKCBNU054075@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: trasz set sender to trasz@FreeBSD.org using -f From: Edward Tomasz Napierala Date: Mon, 15 Jun 2020 20:12:11 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r362205 - head/sys/compat/linux X-SVN-Group: head X-SVN-Commit-Author: trasz X-SVN-Commit-Paths: head/sys/compat/linux X-SVN-Commit-Revision: 362205 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Jun 2020 20:12:11 -0000 Author: trasz Date: Mon Jun 15 20:12:10 2020 New Revision: 362205 URL: https://svnweb.freebsd.org/changeset/base/362205 Log: Make Linux uname(2) return x86_64 to 32-bit apps. This helps Steam. PR: kern/240432 Analyzed by by: Alex S Reviewed by: emaste MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D25248 Modified: head/sys/compat/linux/linux_misc.c Modified: head/sys/compat/linux/linux_misc.c ============================================================================== --- head/sys/compat/linux/linux_misc.c Mon Jun 15 19:46:34 2020 (r362204) +++ head/sys/compat/linux/linux_misc.c Mon Jun 15 20:12:10 2020 (r362205) @@ -704,7 +704,17 @@ linux_newuname(struct thread *td, struct linux_newunam *p = '\0'; break; } +#if defined(__amd64__) + /* + * On amd64, Linux uname(2) needs to return "x86_64" + * for both 64-bit and 32-bit applications. On 32-bit, + * the string returned by getauxval(AT_PLATFORM) needs + * to remain "i686", though. + */ + strlcpy(utsname.machine, "x86_64", LINUX_MAX_UTSNAME); +#else strlcpy(utsname.machine, linux_kplatform, LINUX_MAX_UTSNAME); +#endif return (copyout(&utsname, args->buf, sizeof(utsname))); }