[okl4-developer] Program link addresses

[Geoffrey Lee]

On Fri, Jul 11, 2008 at 10:03:01PM +1000, Joshua Root wrote:

>>
>> The iguana/server program gets started as root server.  For this,
>> you should use the KengeProgram and WeaverRootProgram rather than
>> the Iguana variants.
>
> Right, and that's what I use for my root server. The SConscript I gave  
> is for the user program. Is there a more appropriate weaver for the user  
> program than WeaverIguanaProgram?

Using the Iguana versions might be able to serve as examples.
Depending on which version you pick, however, the system will
link the libraries differently.  Using the Iguana version may
link with Iguana-sepcific initialization, see libs/c/src/sys-*.
Hence, it may be more useful to have a specific version for your OS?

Also, how are you picking out the instruction pointer in the image.boot?
One way to verify that the system has loaded the binary properly and 
is jumping to the correct starting address may be to put printf()
statements just when it is about to start your program, and also
break into the debugger with L4_KDB_Enter().  In the debugger, dump
the memory at the virtual address for the starting instruction pointer,
and do an objdump for that program and verify that the opcodes match up.



>
> - Josh

	-gl
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