Re: [patch/rfc] Don't complain about unknown OSABI

[Andrew Cagney <ac131313@ges.redhat.com>]

>> GDB uses ../bfd/config.bfd to find the default architecture.  I think 
>> this has made our lives much easier -- gdb's and bfd's defaults match 
>> and we don't have to maintain anything.  It really is a ``free lunch'' :-)
>> 
>> Is there an equivalent for the OS/ABI?  If we can pick that default up 
>> from binutils then we also get that for free.  On the other hand if we 
>> start wiring this stuff into configure.tgt (duplicating ld/gcc) we take 
>> on an additional maintenance task.
> 
> 
> Exactly my point.  There is no OS/ABI equivalent; BFD doesn't know what
> it is, and doesn't need to.
> 
> I'll try to put this together tomorrow.

Ah, M'kay :-)

Next question.  Given an unbranded mips-elf binary, what should the 
following GDB's do?

gdb
mips-linux-gnu-gdb
linux-gnu-gdb
m68k-linux-gnu-gdb
mips-netbsd-gdb
mips-gdb
elf-gdb

Having the behavour key off the target creates a problem with an 
identical executable behaving differently with different, but similar 
GDBs.  I suspect it will encourage people to build different GDB's for 
identical purposes when just a single GDB is needed.

enjoy,
Andrew