> On Wed, Jun 07, 2000 at 10:24:15PM -0400, Matthew Emmerton wrote:
>
> brandelf will really understand any brand at all; We just add special
> cases to suppress the need for -f for "known" brands. As it happens,
> though, there's no reason why you can't run "brandelf -f -t BOGUS-BOGUS
foo"
> and have it put a BOGUS-BOGUS brand into an ELF object called foo.
>
> > What may compound the problem is if
> > multiple ELF formats use the same brand, or none at all (as is the case
with
> > SCO ODT5 binaries.)
>
> Well, yes, that's the thing - Branding is, AFAICT, specific to FreeBSD
> and Linux ELF; All other OSs need either a heuristic to select the
> appropriate emulator (for example, the pathname to the ELF interpreter in
> the executable, which doesn't always work), or an explicit branding, or
> an appropriate setting of the kern.fallback_elf_brand sysctl MIB variable.
>
Even more interesting is the SCO document on how ELFs are pseudo-branded.
OpenServer 5: No brand, but have a 28-byte NOTE field.
UnixWare 7: No brand, but have one of the flags set in the FLAG field. (I
couldn't find anything more specific than this.)
--
Matthew Emmerton
GSI Computer Services
+1 (800) 217-5409 (Canada)
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