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Re: Debugging 32bit apps with 64bit target gdb
> From: Paul Smith <psmith@gnu.org>
> Date: Sun, 22 May 2011 18:25:10 -0400
>
> Anyone have any help for me?
>
> A short summary, I'm trying to see if I can build one GDB executable
> with all these properties:
>
> * Is a 32bit application so it can run on both 32bit and 64bit
> systems
> * Can debug 32bit applications
> * Can debug 64bit applications (when run on a 64bit system
> obviously)
> * If I can get it to debug a 64bit core file when running on a
> 32bit system (with --sysroot pointing to a 64bit sysroot of
> course) that would be awesome.
>
> I'm only concerned with x86 architectures (for now?)
>
> Is such a thing possible?
I believe this is possible on Solaris. It is possible on powerpc
Linux. It is *not* possible on Linux. Not GDB's fault. The x86
Linux kernel simply doesn't provide the necessary support.