objdump recognising ARM ELF file

[Jonny Grant]

On 02/08/13 14:37, Richard Sandiford wrote:
> Jon Grant <jg@jguk.org> writes:
>> I am using cygwin's objdump, to look at an ARM ELF image. I noticed it
>> shows as "UNKNOWN!". Was compiled by ARM RVCT compiler. Where the
>> architecture is not known in this case, could the code number be
>> output? (or is that the flags?). Is there a way to add this ARM
>> architecture to the list. Was compiled by RVCT as Cortex-A9, fpu=VFPv3
>
> By default objdump only supports the file formats of the host system
> (in this case cygwin).  You need "cross" versions of binutils if you
> want to look at objects for other architectures.  Cygwin might already
> have an ARM package you can use, but if not, I'm afraid you'll need
> to build binutils yourself.

Hi Richard, Thank you for the info. That makes sense.
I had expected that although objdump wouldn't be able to disassemble 
ARM, it would be able to recognise the file and say it was an ARM ELF file.

Best regards, Jon