(In reply to comment #12)
> Can you try if Johannes' patch from comment 8 fixes the problem?

i tried the to use the relevant part of the patch:
i added '__attribute__((visibility("default")))' in front of
r600_init_query_functions.
but it didn't works.

i'm not a mesa developer but i think that you should do something like this:
edit shared structs to have shared data at the top: see attached #84840
find every shared function and check that data accessed from function it's in
the shared ones.
if not you have to do an "if(sizeof(arg) == sizeof(struct r600_struct))" to
determine how to read/write that data.

a well-done job it's to make a folder with all the shared code ( function and
structs ) and use hardware-specific wrappers functions.

happy developing guys :)