Re: Finding ld.so dynamic loader

[Michael Eager <eager@eagercon.com>]

Paul Koning wrote:
>>>>>> "Michael" == Michael Eager <eager@eagercon.com> writes:
> 
>  Michael> Mark Kettenis wrote:
>  >> GDB tries to please them all, and still tries to cover the case of
>  >> a native debugger too.
> 
>  Michael> It still seems that searching the host file system should be
>  Michael> the last choice, not the first. 
> 
> It should either be the last choice, or not be done at all.  An
> example where it should not be done at all is when host and target are
> different architectures.  Looking up a symbol in an x86 library when
> you're debugging a MIPS target cannot ever be correct -- but that's
> what can happen today.  (This is also an example of something that can
> easily be checked by the solib code without worrying about the
> "remote" vs. "local" distinction -- if host != target then by
> definition the host libraries are wrong.)

It's certainly incorrect to look up a symbol when the host
and target architectures are different.  But it's also
incorrect when the architectures are the same but the library
versions are different.  For example, debugging a x86 Linux 2.4
target with an x86 Linux 2.6 host.  I'd rather see a fix which
handles both situations.

Essentially, any time gdb is working with a remote target,
searching the host file system should be suppressed.

-- 
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077