"32-bit" | SystemInfo.Architecture.i386  | "arm64"        | false          | ARM64_ON_X86
        "64-bit" | SystemInfo.Architecture.amd64 | "arm64"        | true           | ARM64_ON_AMD64
        "64-bit" | SystemInfo.Architecture.amd64 | "arm64"        | false          | ARM64_ON_X86
    }

    def vs2017Dir(String name) {
        def dir = tmpDir.createDir(name)

pkg math/bits (netbsd-amd64-cgo), const UintSize = 64
pkg math/bits (netbsd-arm), const UintSize = 32
pkg math/bits (netbsd-arm-cgo), const UintSize = 32
pkg math/bits (netbsd-arm64), const UintSize = 64
pkg math/bits (netbsd-arm64-cgo), const UintSize = 64
pkg math/bits (openbsd-386), const UintSize = 32
pkg math/bits (openbsd-386-cgo), const UintSize = 32
pkg math/bits (openbsd-amd64), const UintSize = 64

// mkerrors.sh -Wall -Werror -static -I/tmp/arm64/include -fsigned-char
// Code generated by the command above; see README.md. DO NOT EDIT.

//go:build arm64 && linux

// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs -- -Wall -Werror -static -I/tmp/arm64/include -fsigned-char _const.go

package unix

import "syscall"

const (
	B1000000                         = 0x1008
	B115200                          = 0x1002

// hence 8 bytes.
func callbackasmAddr(i int) uintptr {
	var entrySize int
	switch GOARCH {
	default:
		panic("unsupported architecture")
	case "386", "amd64":
		entrySize = 5
	case "arm", "arm64":
		// On ARM and ARM64, each entry is a MOV instruction
		// followed by a branch instruction
		entrySize = 8
	}
	return abi.FuncPCABI0(callbackasm) + uintptr(i*entrySize)
}

const callbackMaxFrame = 64 * goarch.PtrSize

// mksysnum_darwin.pl /usr/include/sys/syscall.h
// Code generated by the command above; DO NOT EDIT.

//go:build arm64 && darwin

package syscall

const (
	SYS_SYSCALL                        = 0
	SYS_EXIT                           = 1
	SYS_FORK                           = 2
	SYS_READ                           = 3
	SYS_WRITE                          = 4
	SYS_OPEN                           = 5
	SYS_CLOSE                          = 6

	}
}

func TestCgoCrashTraceback(t *testing.T) {
	t.Parallel()
	switch platform := runtime.GOOS + "/" + runtime.GOARCH; platform {
	case "darwin/amd64":
	case "linux/amd64":
	case "linux/arm64":
	case "linux/ppc64le":
	default:
		t.Skipf("not yet supported on %s", platform)
	}
	got := runTestProg(t, "testprogcgo", "CrashTraceback")
	for i := 1; i <= 3; i++ {

				// Workaround for https://go.dev/issue/49352.
				// On arm64 macOS (current as of macOS 12.4),
				// reading from a socket at the same time as the client
				// is closing it occasionally hangs for 60 seconds before
				// returning ECONNRESET. Sleep for a bit to give the
				// socket time to close before trying to read from it.
				if runtime.GOOS == "darwin" && runtime.GOARCH == "arm64" {
					time.Sleep(10 * time.Millisecond)
				}

	t.Helper()
	if nerr, ok := err.(net.Error); ok {
		if !nerr.Timeout() {
			if runtime.GOOS == "windows" && runtime.GOARCH == "arm64" && t.Name() == "TestTestConn/TCP/RacyRead" {
				t.Logf("ignoring known failure mode on windows/arm64; see https://go.dev/issue/52893")
			} else {
				t.Errorf("got error: %v, want err.Timeout() = true", nerr)
			}
		}
	} else {

	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
	// Keep in sync with crypto/aes/cipher_s390x.go.
	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)

	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
		runtime.GOARCH == "s390x" && hasGCMAsmS390X

// the order of arguments to comparisons", which helps with CSE, are covered.
// The tedious if-else structures are necessary to ensure all concerned rules
// and machine code sequences are covered.
// It's for arm64 initially, please see https://github.com/golang/go/issues/38740
func TestCondRewrite(t *testing.T) {
	for _, test := range crTests {
		t.Run(test.name, test.tf)
	}
}