Fixed binary mode for perf files.
Fixed permission denied error while writing test perf files on some systems.
Disabled the test `test_random_guff2`. It works fine on Windows but causes a Bus Error (SIGBUS) on some Linux systems. It cannot be handled correctly in all cases.
Note we have no `fib-aarch64` and `fib2-aarch64` binaries to generate the full dump of the symbol table using objdump –t
We have generated `fib-aarch64.objdump.out` from `fib-aarch64.nm.out` manually to fix tests.