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From: Daniel Jacobowitz <drow@mvista.com>
To: Paul Koning <pkoning@equallogic.com>
Cc: gp@qnx.com, gdb@sources.redhat.com
Subject: Re: set env affects host?
Date: Wed, 13 Nov 2002 14:57:00 -0000	[thread overview]
Message-ID: <20021113225905.GA11998@nevyn.them.org> (raw)
In-Reply-To: <15826.54940.676306.297836@pkoning.dev.equallogic.com>

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


  reply	other threads:[~2002-11-13 22:57 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-13 13:02 Graeme Peterson
2002-11-13 14:44 ` Graeme Peterson
2002-11-13 14:47   ` Paul Koning
2002-11-13 14:57     ` Daniel Jacobowitz [this message]
2002-11-13 18:56       ` gp

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