This is the mail archive of the gdb@sources.redhat.com mailing list for the GDB project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: set env affects host?


On Wed, Nov 13, 2002 at 05:47:56PM -0500, Paul Koning wrote:
> >>>>> "Graeme" == Graeme Peterson <gp@qnx.com> writes:
> 
>  Graeme> Well, I think I have answered my own question by checking in
>  Graeme> the source.  I found a comment in solib.c for solib_open that
>  Graeme> says that solib symbols are found in the inferior's
>  Graeme> LD_LIBRARY_PATH, and never in the host's.  So I guess that is
>  Graeme> that.  :-)
> 
>  Graeme> Search order: * If path is absolute, look in
>  Graeme> SOLIB_ABSOLUTE_PREFIX.  * If path is absolute or relative,
>  Graeme> look for it literally (unmodified).  * Look in
>  Graeme> SOLIB_SEARCH_PATH.  * Look in inferior's $PATH.  * Look in
>  Graeme> inferior's $LD_LIBRARY_PATH.
> 
>  Graeme> Anyone care to comment on the rationale behind the behavior?
>  Graeme> Clearly it seemed reasonable to me to find the solibs for
>  Graeme> symbols in the host's LD_LIBRARY_PATH, but that is wrong.
> 
> Looking in the host LD_LIBRARY_PATH, or for that matter using absolute
> names literally, is likely to be wrong for cross-debugging.
> Fortunately the literal lookup is not the first thing tried, but as
> far as I'm concerned it might as well go away entirely if host !=
> target. 

I think that was the consensus the last time this came up: cross
debuggers should only do some of those.  Check the large discussion
resulting from gdb/633.

Either local/remote or native/cross should control this; someone just
needs to decide the exact behavior and implement it :)

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]