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Subject: Re: Adding a MACHINE_ARCH note
From: Adrian Chadd <adrian@freebsd.org>
To: Andrew Turner <andrew@fubar.geek.nz>
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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
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