Re: Debugging Compiler Issues

[Gavin Kavanaugh <zeddicus76 at gmail dot com>]

Arnaud,
Thank you for the quick reply.  I had not even tried linking statically 
so I am doing that now.

I have tried LD_LIBRARY_PATH unsuccessfully.  When I set it to my new 
library path, suddenly my commands stop working (i.e. ls, cd ). I end up 
with problems since my system needs the existing libraries, but I want 
the application to run with the new ones. I hope that the static linking 
will resolve this.

Thanks,
Gavin

On 8/6/2010 10:09 AM, Arnaud Lacombe wrote:
> Hi,
>
> On Fri, Aug 6, 2010 at 12:47 PM, Gavin Kavanaugh<zeddicus76@gmail.com>  wrote:
>    
> > First of all I love the crosstool-NG. I used the original one years ago and
> > I didn't have any idea it was being updated and maintained. Nice work.
> >
> > I ran across the update because I am trying to dig into an issue and it
> > seems like I should be able to do it with crosstool-NG. If anyone can help
> > me out I would greatly appreciate it.
> >
> > The problem is that I have an application that is running on many different
> > distributions. But when I run it on the latest openSUSE 11.3 release I get
> > an assert at start up. After some local debugging I find that this assert is
> > showing up before I even get to the main function of my app. I have done
> > enough debugging to be fairly certain that this issue is in glibc, or gcc.
> >   So what I wanted to do was set up a build so I could build gcc, glibc, and
> > whatever else I needed to a specific version and see if the issue
> > reproduces. Then I can tweak the library versions to help me determine the
> > root cause.
> >
> > I think what I want is to use crosstool-NG to generate a native compiler,
> > but that is not supported(?). Instead I have generated a cross-compiler
> > which is for my host machine. I am able to compile my application using this
> > new cross-compiler, but running it just leads to problems because of library
> > dependency. I thought about setting up a chroot environment for my new
> > toolchain but I have not done this before and I'm not sure it's the best
> > solution either.
> >
> > Hopefully that is enough detail to get my point across. Does anyone know how
> > to set this up?
> >
> >      
> did you try to link your application statically to avoid using any
> system library ? Alternatively, you can override the standard system
> library with your own (provided by the test compiler) with
> LD_LIBRARY_PATH/LD_PRELOAD.
>
>   - Arnaud
>    

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