Steve McIntyre <[email protected]> writes: > amdahl is an arm64 machine, and so doesn't support the SWP instruction > directly in hardware. It was deprecated a long time ago, and was > removed in most implementation of version 8 of the ARM > architecture. There *is* support for emulating SWP in software, but > it's not enabled on amdahl: >
For context, I ran highlight under gdb on amdahl and found that the illegal instruction signal was coming from a swp instruction.

