Expand description
Diagnostic SIGSEGV/SIGBUS tracer for root-causing faults inside JIT’d code.
Installed only when LOGOS_SEGV_TRAP is set. On a fault it writes the
faulting data address (si_addr) and the instruction pointer (RIP) to
stderr, then restores the default handler and re-raises so the process
still dies with the original signal. The faulting address value is the
tell: a small/odd value or a recognizable float bit-pattern (e.g.
0x3ff0000000000000 = 1.0) means a non-pointer was dereferenced.