{-1*(1<<16) - 1, "00\x00", false},
		{537795476381659745, "0000000\x00", false},
		{537795476381659745, "\x80\x00\x00\x00\x07\x76\xa2\x22\xeb\x8a\x72\x61", true},
		{-615126028225187231, "0000000\x00", false},
		{-615126028225187231, "\xff\xff\xff\xff\xf7\x76\xa2\x22\xeb\x8a\x72\x61", true},
		{math.MaxInt64, "0000000\x00", false},
		{math.MaxInt64, "\x80\x00\x00\x00\x7f\xff\xff\xff\xff\xff\xff\xff", true},

00000c0 88 21 c4 00 00 14 00 eb ff 42 88 21 c4 00 00 14
00000d0 00 eb ff 42 88 21 c4 00 00 14 00 eb ff 42 88 21
00000e0 c4 00 00 00 00 ff ff 00 00 00 ff ff 00 34 00 cb
00000f0 ff 42 88 21 c4 00 00 00 00 ff ff 00 00 00 ff ff
0000100 00 34 00 cb ff 42 e8 21 5e 0f 00 00 00 ff ff 0a
0000110 f0 66 64 12 61 c0 15 dc e8 a0 48 bf 48 af 2a b3
0000120 20 c0 9b 95 0d c4 67 04 42 53 06 06 06 40 00 06

						sp >>>= 0;
						setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
					},

					// func walltime() (sec int64, nsec int32)
					"runtime.walltime": (sp) => {
						sp >>>= 0;
						const msec = (new Date).getTime();
						setInt64(sp + 8, msec / 1000);
						this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
					},

					// func scheduleTimeoutEvent(delay int64) int32

		}
	}
}

func TestGrow(t *testing.T) {
	x := []byte{'x'}
	y := []byte{'y'}
	tmp := make([]byte, 72)
	for _, growLen := range []int{0, 100, 1000, 10000, 100000} {
		for _, startLen := range []int{0, 100, 1000, 10000, 100000} {
			xBytes := Repeat(x, startLen)

			buf := NewBuffer(xBytes)
			// If we read, this affects buf.off, which is good to test.
			readBytes, _ := buf.Read(tmp)

	{"$0x04", "$4"},
	{"$0x3FE", "$1022"},
	{"$0x7fffffe00000", "$140737486258176"},
	{"$0xfffffffffffff001", "$-4095"},
	{"$1", "$1"},
	{"$1.0", "$(1.0)"},
	{"$10", "$10"},
	{"$1000", "$1000"},
	{"$1000000", "$1000000"},
	{"$1000000000", "$1000000000"},
	{"$__tsan_func_enter(SB)", "$__tsan_func_enter(SB)"},
	{"$main(SB)", "$main(SB)"},
	{"$masks<>(SB)", "$masks<>(SB)"},
	{"$setg_gcc<>(SB)", "$setg_gcc<>(SB)"},

		}
	}()
	nestedCall(func() { panic("callback panic") })
	panic("nestedCall returned")
}

func testCallbackPanicLoop(t *testing.T) {
	// Make sure we don't blow out m->g0 stack.
	for i := 0; i < 100000; i++ {
		testCallbackPanic(t)
	}
}

func testCallbackPanicLocked(t *testing.T) {
	runtime.LockOSThread()
	defer runtime.UnlockOSThread()

	if !lockedOSThread() {

pkg syscall (netbsd-arm64-cgo), const RTM_REDIRECT ideal-int
pkg syscall (netbsd-arm64-cgo), const RTM_RESOLVE = 11
pkg syscall (netbsd-arm64-cgo), const RTM_RESOLVE ideal-int
pkg syscall (netbsd-arm64-cgo), const RTM_RTTUNIT = 1000000
pkg syscall (netbsd-arm64-cgo), const RTM_RTTUNIT ideal-int
pkg syscall (netbsd-arm64-cgo), const RTM_SETGATE = 18
pkg syscall (netbsd-arm64-cgo), const RTM_SETGATE ideal-int

	MOVB $0, R4                     // 38800000
	MOVBZ $0, R4                    // 38800000
	MOVH $0, R4                     // 38800000
	MOVHZ $0, R4                    // 38800000
	MOVW $0, R4                     // 38800000
	MOVWZ $0, R4                    // 38800000
	MOVD $0, R4                     // 38800000
	MOVD $0, R0                     // 38000000

	ADD $1, R3                      // 38630001

	// Header.FileInfo understands these, but FileInfoHeader will never produce these.
	c_ISDIR  = 040000  // Directory
	c_ISFIFO = 010000  // FIFO
	c_ISREG  = 0100000 // Regular file
	c_ISLNK  = 0120000 // Symbolic link
	c_ISBLK  = 060000  // Block special file
	c_ISCHR  = 020000  // Character special file
	c_ISSOCK = 0140000 // Socket
)

// FileInfoHeader creates a partially-populated [Header] from fi.

	CMP	$0xffffffffffa0, R3             // CMP	$281474976710560, R3              // fb0b80921b00e0f27f001beb
	CMP	$0xf4240, R1                    // CMP	$1000000, R1                      // 1b4888d2fb01a0f23f001beb
	CMP     $3343198598084851058, R3        // 5bae8ed2db8daef23badcdf2bbcce5f27f001beb
	CMP	$3, R2
	CMP	R1, R2
	CMP	R1->11, R2
	CMP	R1>>22, R2
	CMP	R1<<33, R2