Date: Tue, 9 Jul 2013 17:40:53 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Andrew Turner <andrew@fubar.geek.nz> Cc: freebsd-arch@freebsd.org Subject: Re: Adding a MACHINE_ARCH note Message-ID: <CAJ-Vmo=iV8BsGriFRgNuP-ZJdQhpmBLhjAkz-nSVRS0HPKSyOQ@mail.gmail.com> In-Reply-To: <20130709234837.559e3769@bender.Home> References: <20130709090744.0e497e7e@bender.Home> <32F979BD-FB5C-4111-9586-4C5E7C6DFA71@bsdimp.com> <20130709234837.559e3769@bender.Home>
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Someone pointed out there's dirty people running 32-bit binaries using the 64-bit intel/amd instruction set. Is this also able to represent that? -adrian On 9 July 2013 15:48, Andrew Turner <andrew@fubar.geek.nz> wrote: > On Tue, 9 Jul 2013 08:19:46 -0600 > Warner Losh <imp@bsdimp.com> wrote: >> I thought that the ELF headers gave us all the data we needed to know >> how things were built... > > It will tell us if it was for e.g. an ARM or MIPS ELF file, but I'm not > sure how we can tell the difference between an arm and an armv6 ELF. > > With armv6 there are a few changes in the userland/kernel > interface, e.g. reading the thread local storage pointer is different > such that an armv6 static binary would not run on an ARMv5 core as it > uses newer instructions. > > Andrew > _______________________________________________ > freebsd-arch@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arch > To unsubscribe, send any mail to "freebsd-arch-unsubscribe@freebsd.org"
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