Date: Mon, 15 Aug 2016 14:15:50 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-arm@freebsd.org Subject: Re: Updating RPI2 from 11-CURRENT to RELENG_11 Message-ID: <2ee63d2c-2057-d105-8a4c-1a5377427952@denninger.net> In-Reply-To: <57B20D96.4020303@fsck.ch> References: <57AF7917.5030407@fsck.ch> <CANCZdfoW9Yg-6f7g6MMaos8ZhX5sndrQVxuKMqo%2BLn7RQU_xTw@mail.gmail.com> <57B20D96.4020303@fsck.ch>
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This is a cryptographically signed message in MIME format. --------------ms050706000207010405020304 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 8/15/2016 13:44, Toby wrote: > On 13/08/16 22:37, Warner Losh wrote: >> On Sat, Aug 13, 2016 at 1:46 PM, Toby <misc.lists@fsck.ch> wrote: >> >> 20160517: >> The armv6 port now defaults to hard float ABI. Limited support= >> for running both hardfloat and soft float on the same system >> is available using the libraries installed with -DWITH_LIBSOFT= =2E >> This has only been tested as an upgrade path for installworld >> and packages may fail or need manual intervention to run. New >> packages will be needed. >> >> To update an existing self-hosted armv6hf system, you must add= >> TARGET_ARCH=3Darmv6 on the make command line for both the buil= d >> and the install steps >> Short answer is that you'll need to re-install all packages because of= this. >> They will work for a while, but as updates happen 'cross threading' ca= n >> occur if the updates are partial unless you specifically do special th= ings. >> Only extreme special needs use cases will be affected (like having onl= y >> binaries linked against the soft float ABI libraries). >> >> Warner > Thanks for the explanation. My buildworld is now done and I'll update > the packages > over the next few days. > > Toby > _______________________________________________ Beware that you can get some very odd, and not-at-all-obvious bad results from a mismatch between hard-float and soft-float applications =2Evs. system environment. In some (but not all) cases you'll get an abort and warning when you try to run the mismatched application. In others, however, you'll instead get an application that runs but produces incorrect floating-point output! I have stuck some init-time traps into a couple of my applications to attempt to detect this; it's a very real risk if there are "leftover" programs laying around and one that bit me pretty good when the armv6hf switch went away in favor of always being hardware-fp. --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------ms050706000207010405020304 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCC Bl8wggZbMIIEQ6ADAgECAgEpMA0GCSqGSIb3DQEBCwUAMIGQMQswCQYDVQQGEwJVUzEQMA4G A1UECBMHRmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3Rl bXMgTExDMRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhND dWRhIFN5c3RlbXMgTExDIENBMB4XDTE1MDQyMTAyMjE1OVoXDTIwMDQxOTAyMjE1OVowWjEL MAkGA1UEBhMCVVMxEDAOBgNVBAgTB0Zsb3JpZGExGTAXBgNVBAoTEEN1ZGEgU3lzdGVtcyBM TEMxHjAcBgNVBAMTFUthcmwgRGVubmluZ2VyIChPQ1NQKTCCAiIwDQYJKoZIhvcNAQEBBQAD ggIPADCCAgoCggIBALmEWPhAdphrWd4K5VTvE5pxL3blRQPyGF3ApjUjgtavqU1Y8pbI3Byg XDj2/Uz9Si8XVj/kNbKEjkRh5SsNvx3Fc0oQ1uVjyCq7zC/kctF7yLzQbvWnU4grAPZ3IuAp 3/fFxIVaXpxEdKmyZAVDhk9az+IgHH43rdJRIMzxJ5vqQMb+n2EjadVqiGPbtG9aZEImlq7f IYDTnKyToi23PAnkPwwT+q1IkI2DTvf2jzWrhLR5DTX0fUYC0nxlHWbjgpiapyJWtR7K2YQO aevQb/3vN9gSojT2h+cBem7QIj6U69rEYcEDvPyCMXEV9VcXdcmW42LSRsPvZcBHFkWAJqMZ Myiz4kumaP+s+cIDaXitR/szoqDKGSHM4CPAZV9Yh8asvxQL5uDxz5wvLPgS5yS8K/o7zDR5 vNkMCyfYQuR6PAJxVOk5Arqvj9lfP3JSVapwbr01CoWDBkpuJlKfpQIEeC/pcCBKknllbMYq yHBO2TipLyO5Ocd1nhN/nOsO+C+j31lQHfOMRZaPQykXVPWG5BbhWT7ttX4vy5hOW6yJgeT/ o3apynlp1cEavkQRS8uJHoQszF6KIrQMID/JfySWvVQ4ksnfzwB2lRomrdrwnQ4eG/HBS+0l eozwOJNDIBlAP+hLe8A5oWZgooIIK/SulUAsfI6Sgd8dTZTTYmlhAgMBAAGjgfQwgfEwNwYI KwYBBQUHAQEEKzApMCcGCCsGAQUFBzABhhtodHRwOi8vY3VkYXN5c3RlbXMubmV0Ojg4ODgw CQYDVR0TBAIwADARBglghkgBhvhCAQEEBAMCBaAwCwYDVR0PBAQDAgXgMCwGCWCGSAGG+EIB DQQfFh1PcGVuU1NMIEdlbmVyYXRlZCBDZXJ0aWZpY2F0ZTAdBgNVHQ4EFgQUxRyULenJaFwX RtT79aNmIB/u5VkwHwYDVR0jBBgwFoAUJHGbnYV9/N3dvbDKkpQDofrTbTUwHQYDVR0RBBYw FIESa2FybEBkZW5uaW5nZXIubmV0MA0GCSqGSIb3DQEBCwUAA4ICAQBPf3cYtmKowmGIYsm6 eBinJu7QVWvxi1vqnBz3KE+HapqoIZS8/PolB/hwiY0UAE1RsjBJ7yEjihVRwummSBvkoOyf G30uPn4yg4vbJkR9lTz8d21fPshWETa6DBh2jx2Qf13LZpr3Pj2fTtlu6xMYKzg7cSDgd2bO sJGH/rcvva9Spkx5Vfq0RyOrYph9boshRN3D4tbWgBAcX9POdXCVfJONDxhfBuPHsJ6vEmPb An+XL5Yl26XYFPiODQ+Qbk44Ot1kt9s7oS3dVUrh92Qv0G3J3DF+Vt6C15nED+f+bk4gScu+ JHT7RjEmfa18GT8DcT//D1zEke1Ymhb41JH+GyZchDRWtjxsS5OBFMzrju7d264zJUFtX7iJ 3xvpKN7VcZKNtB6dLShj3v/XDsQVQWXmR/1YKWZ93C3LpRs2Y5nYdn6gEOpL/WfQFThtfnat HNc7fNs5vjotaYpBl5H8+VCautKbGOs219uQbhGZLYTv6okuKcY8W+4EJEtK0xB08vqr9Jd0 FS9MGjQE++GWo+5eQxFt6nUENHbVYnsr6bYPQsZH0CRNycgTG9MwY/UIXOf4W034UpR82TBG 1LiMsYfb8ahQJhs3wdf1nzipIjRwoZKT1vGXh/cj3gwSr64GfenURBxaFZA5O1acOZUjPrRT n3ci4McYW/0WVVA3lDGCBRMwggUPAgEBMIGWMIGQMQswCQYDVQQGEwJVUzEQMA4GA1UECBMH RmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3RlbXMgTExD MRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhNDdWRhIFN5 c3RlbXMgTExDIENBAgEpMA0GCWCGSAFlAwQCAwUAoIICTTAYBgkqhkiG9w0BCQMxCwYJKoZI hvcNAQcBMBwGCSqGSIb3DQEJBTEPFw0xNjA4MTUxOTE1NTBaME8GCSqGSIb3DQEJBDFCBED0 MKUVov2DRwh+saubzSfsTzVNSI2pmghxzVQHRIBuiYH4RucG9F6DiH5RrPnWQtseRX/cLTse xSeSTIktLvrwMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEqMAsGCWCGSAFlAwQBAjAK BggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAwBwYFKw4DAgcwDQYI KoZIhvcNAwICASgwgacGCSsGAQQBgjcQBDGBmTCBljCBkDELMAkGA1UEBhMCVVMxEDAOBgNV BAgTB0Zsb3JpZGExEjAQBgNVBAcTCU5pY2V2aWxsZTEZMBcGA1UEChMQQ3VkYSBTeXN0ZW1z IExMQzEcMBoGA1UEAxMTQ3VkYSBTeXN0ZW1zIExMQyBDQTEiMCAGCSqGSIb3DQEJARYTQ3Vk YSBTeXN0ZW1zIExMQyBDQQIBKTCBqQYLKoZIhvcNAQkQAgsxgZmggZYwgZAxCzAJBgNVBAYT AlVTMRAwDgYDVQQIEwdGbG9yaWRhMRIwEAYDVQQHEwlOaWNldmlsbGUxGTAXBgNVBAoTEEN1 ZGEgU3lzdGVtcyBMTEMxHDAaBgNVBAMTE0N1ZGEgU3lzdGVtcyBMTEMgQ0ExIjAgBgkqhkiG 9w0BCQEWE0N1ZGEgU3lzdGVtcyBMTEMgQ0ECASkwDQYJKoZIhvcNAQEBBQAEggIAZW11nACz T6yPdEIQ4KJUkBaqavlHZxd2+4GwO/LX5PpXLFB/e/zkUgVz0OTb4M6qVd/1k4NorMI4E//x t/l9kfOLlexz/nIOEN7j387LZBPv/Xrirkzd56LuZZEHQTvP/ong8AUs6NjEKgvARtV7+9V9 O+4x4kd963xf6pQSl/JAaMGOO+Senewc7stcOQZsVQ5X1XjAFbcVkC9ZDJWoo9wJq1WizTxV yZdhtbjNu1+2WRMh+YNB9S6b3YGXFVz3JLDr5uQo+daxX+/rqDAKgbn4W/A1Ae1xnQCjfx1S pGG8ghnyFYJOIB6m4+buP51iWBydupmmIcHLNhq2yrsDufOS8/jcDPFpfz7iIty1CzTFQHEu nv7kzQ2yotPrA8hMHrNwNG1FCHXsdtvvY6vZ/hLd0DYNDzSj8JvXF8J4f3U5BbQ2zP+SPAik YTUJK4TfofvaG0AjstHoyW2rAcanLmBhusqk4LRUUcCF8/KFCKcNnmX0NY5XkKFF0Iq9KP7q 5sw/EI/6fGMZooJNiZqi1a2SJuCJalb9EVutRpMqCz0gut8Q3uFurCUbjL0rfKjN+SEjMsKU sCU6/+Ac+BLVWgfw9s3USl309OaU7E9pQM2f4Aoxbxny9yZ1dq4D8RlA2n/j6sh5d4bhp3a9 pNoFyu9uDseQhJaNzBer7pbuQmEAAAAAAAA= --------------ms050706000207010405020304--
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