Comment 1 for bug 2044079

To support PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG and PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG,
CONFIG_GENERIC_ENTRY must be selected. (see ptrace_request())

As of writing (v6.8 kernel), GENERIC_ENTRY is only selected by x86, s390, riscv, loongarch.

In my opinion, this test should be skipped for architectures that do not select GENERIC_ENTRY.
It is tedious to give a hint to every arm, arm64, ppc, platform.