Date: Fri, 17 Jul 2015 10:59:03 -0400 From: Allan Jude <allanjude@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: Kernel Application Binary Interface (kABI) support in FreeBSD Message-ID: <55A91837.50805@freebsd.org> In-Reply-To: <55A9157A.8050208@freebsd.org> References: <e99bd6bc6ecf65c35f442e4065533c71@mail.gmail.com> <55A9157A.8050208@freebsd.org>
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[-- Attachment #1 --] On 2015-07-17 10:47, Julian Elischer wrote: > On 7/17/15 9:02 PM, Venkat Duvvuru wrote: >> Hi, >> >> Is there kABI (Kabi-whitelist) equivalent feature in FreeBSD? > well, yes and no. > > Firstly, FreeBSD maintains a backwards compatible kABI (with the > exception of programs that hunt around in kernel memory). > We also use symbol versioning on the libc. so depending on what you want > to do. the answer may be useful to you or not. > Basically any binary should continue to run on a newer kernel, even if > the syscalls change, because we should still support the old abi. > > tell us more about what you need and we can be more specific. > > I have run Freebsd 1.1 binaries on a Freebsd 8 system, in fact I have > done a system build in a freebsd 1.1 chroot on an 8 system. > I haven't tried it on 9 or 10 but I'd expect it to work.. > > >> >> >> >> Thanks, >> >> Venkat. >> _______________________________________________ >> freebsd-current@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-current >> To unsubscribe, send any mail to >> "freebsd-current-unsubscribe@freebsd.org" >> >> > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" I think the question related to drivers (kernel modules). In which case, they should be compatible across major versions (module from 10.0 works in 10.2, but not 9.3 or 11.0) -- Allan Jude [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQIcBAEBAgAGBQJVqRg7AAoJEBmVNT4SmAt+IWUP/3d5GjGawOLFitf690jR/Ucx ooYDon1j1Tg10gt8PY7eD2KsggAkYnQH3OI97Ym7bavf8pRk0o1MVkb6pwLP1qwU AXN0wqWP0M/1W00z5JLALNfIqKM3J9mhz8FMsdobSWihXVp5E5VONLifp8g3cnT2 Je7F85nh2SNr/yokc8fgX1qOCD5bRHGpNTK7SptaXtFlYHG0738f1bPMVOsKJBjR jW3B8rvoC4DBkDJmXt+2UPTYyl5ujknsKdHXiaLDTRnGDDNlKwxBi+4hR4cZOVSx 4FfB3nqPyEiE5GDNWH6U2Qy1zExGWFh/VBBcMSLImqneRmBQSfZH0lmn1UamZvWb 7An9Q86sdcJQZmYRacME3lnVxb0y0rcbCnx3fmdqkU9wVl8COIajCFEDs7Wj3YX5 TbYq3/JTDH2oqF62nPzYDFAh1+166h34xHiKY2te8fRaVcprRcWSnBhgPBziUn8R LlI0DjYvHVG73qdNsM/JUZS5Qr/ZPOc9Le5IBPSyIbZ2PB9y6MqfavZUPPfPSx9H DLsIFUg3R75owSPvm+kllUx+alU1TyqHBoloA17AgZgPj4NRVTCpJ+b3jUZt/vkw jcwvwgaT5vwlYfCWSN23dW1BroXNL0iyREjqUCWliQHNul9+zpgDUnqWkm7NxKIk +QsTFsn9w15Z5gUS0X4e =vJLy -----END PGP SIGNATURE-----
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