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identity=mailfrom; envelope-from="miller@hamnavoe.com"; helo=balrog.mythic-beasts.com; client-ip=46.235.227.24 Received: from balrog.mythic-beasts.com (balrog.mythic-beasts.com [46.235.227.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by tb-mx0.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Sun, 24 Oct 2021 07:03:27 -0400 (EDT) (envelope-from miller@hamnavoe.com) Received: from [88.97.27.83] (port=33833 helo=hamnavoe.com) by balrog.mythic-beasts.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.92.3) (envelope-from ) id 1mebHe-0002qq-SI for 9fans@9fans.net; Sun, 24 Oct 2021 12:03:27 +0100 Message-ID: <9b84409d162620992983e1eea6171490@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Sun, 24 Oct 2021 12:03:21 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BlackCat-Spam-Score: 1 Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 073f0aa0-34ba-11ec-83cf-eb2fb807c6a6 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMzg2Yjg5M2Y2MTRmMmIyMy1NYTk5ODUwZGU2YTI2MjAzMWViZDcy?= =?UTF-8?B?N2RjPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Subject: [9fans] v9fs vs mmap List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:Ma99850de6a262031ebd727dc:1:9mrWaUo-G1cTzv0eIDRvJbOgr816fyOzG5Gmi2jAIOA I'm trying to cross-compile go for plan9-386 using go-linux-amd64 (on a linux laptop) with the source tree mounted from a plan 9 server via v9fs (mount -t 9p). All goes well up to a point, then this happens: /mnt/sys/lib/go1.17/pkg/tool/linux_amd64/link: mapping output file failed: = invalid argument It appears the go linker is now using mmap on its output file, so it can write to different object code sections at multiple offsets. Should this be expected to work? Or is mmap not supported over v9fs? ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T386b893f614f2b23-Ma9985= 0de6a262031ebd727dc Delivery options: https://9fans.topicbox.com/groups/9fans/subscription