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Date: Thu, 30 Aug 2012 14:30:04 -0700
From: Steve Kargl <sgk@troutmask.apl.washington.edu>
To: asp imho <asp654@gmail.com>
Message-ID: <20120830213004.GA81386@troutmask.apl.washington.edu>
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Cc: freebsd-arch@freebsd.org
Subject: Re: FreeBSD complies with which ABI
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On Thu, Aug 30, 2012 at 01:40:22PM -0700, asp imho wrote:
> Hi all,
> 
> Which ABI does FreeBSD comply to for multiple architectures (x86,
> powerpc)... I've seen that the executable is in the ELF format (specified
> in System V ABI), so does this mean that we comply to System V ABI
> completely for all architectures. Please let me know.
> 

man brandelf

% brandelf -l
known ELF types are: FreeBSD(9) Linux(3) Solaris(6) SVR4(0) 

On an AMD64 system with compat_linux:
% elfdump -e /bin/cat | grep e_ident
        e_ident: ELFCLASS64 ELFDATA2LSB ELFOSABI_FREEBSD
% elfdump -e /compat/linux//bin/cat | grep e_ident
        e_ident: ELFCLASS32 ELFDATA2LSB ELFOSABI_LINUX

On a sparc64 system,
% elfdump -e /bin/cat | grep ident
        e_ident: ELFCLASS64 ELFDATA2MSB ELFOSABI_FREEBSD


-- 
Steve