On Tue, 05 Dec 2006 12:28:58 +0900, "Toru Nishimura" wrote:
> Jesse Off wrote;
> 
> > I recently wrote a program to allow NetBSD to boot other OS' from within 
> > NetBSD itself.
> 
> [ ... snip ... ]
> 
> > I'll probably implement arbitrary ELF file loading sometime this month 
> > (right now it only works with raw images)
> 
> As a side note, it's possible to distinguish NetBSD ELF from Linux 2.4 or 2.6
> looking at ELF "private flags" field.
> 
> In Little Endian short, offset 0x24 of kernel ELF header differs as;
> - NetBSD    0x0602
> - Linux 2.4  0x0002
> - Linux 2.6  0x0202

This isn't a reliable test.  Linux objects and executables built to the 
EABI will show a completely different value here (in e_flags) and that 
field doesn't contain enough information to determine the OS.

R.