/* 6 */ {_SigNotify + _SigThrow, "SIGABRT: abort"},
	/* 7 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
	/* 8 */ {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},
	/* 9 */ {0, "SIGKILL: kill"},
	/* 10 */ {_SigNotify, "SIGUSR1: user-defined signal 1"},
	/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
	/* 12 */ {_SigNotify, "SIGUSR2: user-defined signal 2"},

	/* 7 */ {_SigThrow, "SIGEMT: EMT instruction"},
	/* 8 */ {_SigPanic + _SigUnblock, "SIGFPE: floating point exception"},
	/* 9 */ {0, "SIGKILL: kill (cannot be caught or ignored)"},
	/* 10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
	/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
	/* 12 */ {_SigThrow, "SIGSYS: bad argument to system call"},

	/*  6 */ {_SigNotify + _SigThrow, "SIGABRT: abort"},
	/*  7 */ {_SigThrow, "SIGEMT"},
	/*  8 */ {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},
	/*  9 */ {0, "SIGKILL: kill"},
	/*  10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
	/*  11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
	/*  12 */ {_SigThrow, "SIGSYS: bad system call"},

	"mcall":              abi.FuncID_mcall,
	"morestack":          abi.FuncID_morestack,
	"mstart":             abi.FuncID_mstart,
	"panicwrap":          abi.FuncID_panicwrap,
	"runfinq":            abi.FuncID_runfinq,
	"sigpanic":           abi.FuncID_sigpanic,
	"systemstack_switch": abi.FuncID_systemstack_switch,
	"systemstack":        abi.FuncID_systemstack,

	// Don't show in call stack but otherwise not special.

	runtime.KeepAlive(x)

	// x is no longer live. Garbage collect the [32]*int on the
	// heap.
	runtime.GC()
	// At this point x's dead stack slot points to dead memory.

	// Trigger a sigpanic. Since this is an implicit panic, we
	// don't have an explicit liveness map here.
	// Traceback used to use the liveness map of the most recent defer,
	// but in that liveness map, x will be live again even though

	if (ret) {
		fprintf(stderr, "runtime/cgo: thread_get_state failed: %d\n", ret);
		abort();
	}

	// Bounce call to sigpanic through asm that makes it look like
	// we call sigpanic directly from the faulting code.
#ifdef __arm64__
	thread_state.ts_64.__x[1] = thread_state.ts_64.__lr;
	thread_state.ts_64.__x[2] = thread_state.ts_64.__pc;

	Raceread          *obj.LSym
	Racereadrange     *obj.LSym
	Racewrite         *obj.LSym
	Racewriterange    *obj.LSym
	TypeAssert        *obj.LSym
	WBZero            *obj.LSym
	WBMove            *obj.LSym
	// Wasm
	SigPanic        *obj.LSym
	Staticuint64s   *obj.LSym
	Typedmemmove    *obj.LSym
	Udiv            *obj.LSym
	WriteBarrier    *obj.LSym
	Zerobase        *obj.LSym
	ARM64HasATOMICS *obj.LSym
	ARMHasVFPv4     *obj.LSym

)

func osinit() {
	// https://webassembly.github.io/spec/core/exec/runtime.html#memory-instances
	physPageSize = 64 * 1024
	initBloc()
	ncpu = 1
	getg().m.procid = 2
}

const _SIGSEGV = 0xb

func sigpanic() {
	gp := getg()
	if !canpanic() {
		throw("unexpected signal during runtime execution")
	}

	// js only invokes the exception handler for memory faults.
	gp.sig = _SIGSEGV
	panicmem()
}

	abi  int
}

var fextras = [...]extra{
	// compiler frontend inserted calls (sysfunc)
	{"deferproc", 1},
	{"deferprocStack", 1},
	{"deferreturn", 1},
	{"newproc", 1},
	{"panicoverflow", 1},
	{"sigpanic", 1},

	// compiler backend inserted calls
	{"gcWriteBarrier", 1},
	{"duffzero", 1},
	{"duffcopy", 1},

	// assembler backend inserted calls
	{"morestack", 0},        // asm function, ABI0

	if runtime.GOARCH != "amd64" {
		t.Skip("skipping amd64-only test")
	}
	want := []string{"runtime_test.sehCallers", "runtime_test.TestSehUnwindNilPointerPanic.func1", "runtime.gopanic",
		"runtime.sigpanic", "runtime_test.TestSehUnwindNilPointerPanic"}
	defer func() {
		if r := recover(); r == nil {
			t.Fatal("did not panic")
		}
		pcs := sehCallers()
		testSehCallersEqual(t, pcs, want)
	}()
	var p *int