the go_ios_$GOARCH_exec wrapper is found. For example, to run the archive/tar tests:

	export PATH=$GOROOT/bin:$PATH
	GOOS=ios GOARCH=amd64 CGO_ENABLED=1 go test archive/tar

The go_ios_exec wrapper uses GOARCH to select the emulator (amd64) or the device (arm64).
However, further setup is required to run tests or programs directly on a device.

First make sure you have a valid developer certificate and have setup your device properly

	    statement, or a possibly labeled <a href="#Fallthrough_statements">"fallthrough"
	    statement</a>.</li>
	</ul>
</li>

<li>
	A <a href="#Select_statements">"select" statement</a> in which:
	<ul>
	<li>there are no "break" statements referring to the "select" statement, and</li>
	<li>the statement lists in each case, including the default if present,
	    end in a terminating statement.</li>
	</ul>
</li>

pkg debug/elf, type R_LARCH int #46229
pkg debug/pe, const IMAGE_COMDAT_SELECT_ANY = 2 #51868
pkg debug/pe, const IMAGE_COMDAT_SELECT_ANY ideal-int #51868
pkg debug/pe, const IMAGE_COMDAT_SELECT_ASSOCIATIVE = 5 #51868
pkg debug/pe, const IMAGE_COMDAT_SELECT_ASSOCIATIVE ideal-int #51868
pkg debug/pe, const IMAGE_COMDAT_SELECT_EXACT_MATCH = 4 #51868
pkg debug/pe, const IMAGE_COMDAT_SELECT_EXACT_MATCH ideal-int #51868

pkg syscall (openbsd-386), const SYS_PPOLL ideal-int
pkg syscall (openbsd-386), const SYS_PSELECT = 110
pkg syscall (openbsd-386), const SYS_PSELECT ideal-int
pkg syscall (openbsd-386), const SYS_SELECT = 71
pkg syscall (openbsd-386), const SYS_SETITIMER = 69
pkg syscall (openbsd-386), const SYS_SETTIMEOFDAY = 68
pkg syscall (openbsd-386), const SYS_STAT = 38
pkg syscall (openbsd-386), const SYS_STATFS = 63

	testThreadLockFunc = testThreadLock
}

func testThreadLock(t *testing.T) {
	stop := make(chan int)
	go func() {
		// We need the G continue running,
		// so the M has a chance to run this G.
		for {
			select {
			case <-stop:
				return
			case <-time.After(time.Millisecond * 100):
			}
		}
	}()
	defer close(stop)

	for i := 0; i < 1000; i++ {
		if !C.Ctid() {
			t.Fatalf("cgo has not locked OS thread")

	Example:
	//go:cgo_ldflag "-lpthread"
	//go:cgo_ldflag "-L/usr/local/sqlite3/lib"

A package compiled with cgo will include directives for both
internal and external linking; the linker will select the appropriate
subset for the chosen linking mode.

Example

As a simple example, consider a package that uses cgo to call C.sin.
The following code will be generated by cgo:

	// compiled by gc

	return 0, nil
}

func TestZeroReader(t *testing.T) {
	var z zeroReader
	r := NewReader(z)

	c := make(chan error)
	go func() {
		_, err := r.ReadByte()
		c <- err
	}()

	select {
	case err := <-c:
		if err == nil {
			t.Error("error expected")
		} else if err != io.ErrNoProgress {
			t.Error("unexpected error:", err)
		}
	case <-time.After(time.Second):

pkg syscall (netbsd-arm64-cgo), const SYS_SCHED_YIELD = 350
pkg syscall (netbsd-arm64-cgo), const SYS_SCHED_YIELD ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_SELECT = 417
pkg syscall (netbsd-arm64-cgo), const SYS_SELECT ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_SEMCONFIG = 223
pkg syscall (netbsd-arm64-cgo), const SYS_SEMCONFIG ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS___SEMCTL = 442

	    statement, or a possibly labeled <a href="#Fallthrough_statements">"fallthrough"
	    statement</a>.</li>
	</ul>
</li>

<li>
	A <a href="#Select_statements">"select" statement</a> in which:
	<ul>
	<li>there are no "break" statements referring to the "select" statement, and</li>
	<li>the statement lists in each case, including the default if present,
	    end in a terminating statement.</li>
	</ul>
</li>

pkg syscall (darwin-arm64), const SYS_SEARCHFS ideal-int
pkg syscall (darwin-arm64), const SYS_SELECT = 93
pkg syscall (darwin-arm64), const SYS_SELECT ideal-int
pkg syscall (darwin-arm64), const SYS_SELECT_NOCANCEL = 407
pkg syscall (darwin-arm64), const SYS_SELECT_NOCANCEL ideal-int
pkg syscall (darwin-arm64), const SYS_SEMCTL = 254
pkg syscall (darwin-arm64), const SYS_SEMCTL ideal-int