const golang.org/x/sys/unix.PTRACE_SYSCALL
2 uses
golang.org/x/sys/unix (current package)
syscall_linux.go#L1722: return ptrace(PTRACE_SYSCALL, pid, 0, uintptr(signal))
zerrors_linux.go#L2534: PTRACE_SYSCALL = 0x18
The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)