Re: [uml-devel] [patch] GDB macros for debugging modules

[Jeff D. <jd...@ka...>]

hn...@ma... said:
> The attached patch defines 2 gdb macros to simplify debugging of
> modules. 

Bleah, nice idea, but the implementation sucks.

What I think I want here is for there to be a perl script or something
between UML and gdb.  It would initialize gdb, so the gdb crud that's 
already there can be moved.  It would also put a breakpoint someplace in
sys_init_module and do the module symbol reloading automagically when
that breakpoint is hit.

Also, mistral has a bunch of handy gdb init things.  Someone should collect
all of these things in one place.

> Note: These macros do not follow FAQ 9.3 Debugging modules to 100%. It
> seems modules start at "module + module.size_of_struct", not "module +
> module.size_of_struct + 4". 

Yeah, that seems to change now and then.  That's why I recommend looking
at how the init_module address resolves symbolically.

				Jeff