Date: Tue, 06 Jan 2009 20:21:32 +0000 From: <giffunip@tutopia.com> To: 'Pedro F . Giffuni' <giffunip@tutopia.com>, Chagin Dmitry <dchagin@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: RFC: ELF branding. looking to a '.note.ABI-tag' section Message-ID: <20090106204820.31FFB8FC1B@mx1.freebsd.org>
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On Mar Ene 6 14:59 , Chagin Dmitry sent: >On Tue, Jan 06, 2009 at 09:38:35AM -0800, Pedro F. Giffuni wrote: >> Hi; >> >> As the author of kern/118473 I think that ELF notes for brand-ELFing is a useless non standard hack. I do understand that we want to teach our linuxulator about GNU ELF notes, but why would we want to use them for FreeBSD binaries? >> >> If you follow the posting on the lists by John Polstra and ELF spec you will find we don't need ELF notes. There is also a thread in some binutils list that made me conclude the reason they chose for not using the standard way was "NIH". >> >> Pedro. >> > >Hi, I don't think so. We already use this for native binaries. > >http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/kern/imgact_elf.c.diff\? r1=1.181;r2=1.182 > Aha .. The ELF standard doesn't include the OS_version so using notes for that makes sense, however for the ABI the standard has always been EI_ABI field. http://www.sco.com/developers/gabi/latest/ch4.eheader.html#osabi Please check this interesting link: http://people.freebsd.org/~obrien/ei_osabi-binutils.mbox Pedro.help
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