Re: [Valgrind-users] cross platform tool development

[Konstantin T. <an...@ya...>]

26.08.2013, 19:18, "Paolo Piselli" <ppi...@cs...>:
> Hi, I'm working on a Valgrind tool targeting 32-bit guests that up to
> this point we have been running on 32-bit hosts.  I would like to also
> be able to compile to target 32-bit guest on 64-bit host.  So far, the
> largest difference that I have found is described in the comments of
> "doHelperCall" in host_amd64_isel.c:
>
> "This function only deals with a tiny set of possibilities, which cover
> all helpers in practice.  The restrictions are that only arguments in
> registers are supported, hence only 6x64 integer bits in total can be
> passed.  In fact the only supported arg type is I64."
>
> With this constraint in place, I was wondering if there were any
> particular best-practices for cross platform tool development.  For
> instance, we could promote all parameters for all tool callbacks to
> 64-bit across all platforms to keep the code clean and uniform, or we
> could maintain parallel platform-specific callback compilation units
> that must be manually kept consistent across feature changes and bug
> fixes, or we could throw a bunch of #ifdefs in the source to change the
> function signatures and IExpr marshaling depending on platform.
>
> Any thoughts are appreciated!

Why not just use 32-bit build of valgrind instead?

-- 
Regards,
Konstantin