}

var _badsignal = []byte("runtime: signal received on thread not created by Go.\n")

// This runs on a foreign stack, without an m or a g. No stack split.
//
//go:nosplit
func badsignal2() {
	pwrite(2, unsafe.Pointer(&_badsignal[0]), int32(len(_badsignal)), -1)
	exits(&_badsignal[0])
}

func raisebadsignal(sig uint32) {
	badsignal2()
}

func _atoi(b []byte) int {

	// Notes in runtime·sigtab that are handled by runtime·sigpanic.
	_SIGRFAULT = 2
	_SIGWFAULT = 3
	_SIGINTDIV = 4
	_SIGFLOAT  = 5
	_SIGTRAP   = 6
	_SIGPROF   = 0 // dummy value defined for badsignal
	_SIGQUIT   = 0 // dummy value defined for sighandler

TEXT xx_cgo_panicmem(SB),NOSPLIT|NOFRAME,$0
	// If in external C code, we need to load the g register.
	BL  runtime·load_g(SB)
	CMP $0, g
	BNE ongothread

	// On a foreign thread.
	// TODO(crawshaw): call badsignal
	MOVD.W $0, -16(RSP)
	MOVW $139, R1
	MOVW R1, 8(RSP)
	B    runtime·exit(SB)

ongothread:
	// Trigger a SIGSEGV panic.
	//
	// The goal is to arrange the stack so it looks like the runtime

			// no non-Go signal handler for sigPreempt.
			// The default behavior for sigPreempt is to ignore
			// the signal, so badsignal will be a no-op anyway.
			if GOOS == "darwin" || GOOS == "ios" {
				pendingPreemptSignals.Add(-1)
			}
			return
		}
		c.fixsigcode(sig)
		// Set g to nil here and badsignal will use g0 by needm.
		// TODO: reuse the current m here by using the gsignal and adjustSignalStack,