The way the isaspec decoder used to work was that it would generate a
header and a C file, each with ISA-specific stuff in it. Then that would
get built together with a stand-alone decode.c file which lives in the
isaspec folder, not the driver's folder. In order for decode.c to find
the ISA-specific headers, it would also generate a glue header which had
to be named isaspec-isa.h. This effectively meant that you can't have
multiple isaspec definitions in the same folder.
To solve this, we make do it the other way around and make the generated
header and C files include the stand-alone files. This is a bit awkward
because it means including a C file from another C file but it's better
for the build system.
Acked-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20525>
