The binutils and gdb projects do not even pretend to a stable ABI or API for libbfd and libopcodes. Particularly not ABI, that gets broken on almost every week. perf and other projects that want to use libbfd or libopcodes are of course welcome to do so, but they then need to deal with the changing API. Complaints that Nick, Alan, or H.J. Lu have broken perf or similar *will be ignored*, except possibly to tell you that you may as well stop complaining.
I've said before that the most obvious way to deal with the unstable API is to import a snapshot of the libbfd and libopcodes code into those projects and merge from upstream as new upstream support becomes desirable. That's not hard to do! -- Alan Modra Australia Development Lab, IBM
