Prep work for next patch. Ideally 'struct debug_stack_frame' would be opaque, but it is embedded in a bunch of places. But at least we can treat it opaquely. Signed-off-by: Rob Clark <robdclark@gmail.com>
Rely on Windows' CaptureStackBackTrace to do the grunt work. Reviewed-by: Brian Paul <brianp@vmware.com>
Not much useful until we have symbol lookup.