lockPath := filepath.Join(os.TempDir(), "go_android_exec-adb-lock")
	lock, err := os.OpenFile(lockPath, os.O_CREATE|os.O_RDWR, 0666)
	if err != nil {
		return 0, err
	}
	defer lock.Close()
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 0, err
	}

	// In case we're booting a device or emulator alongside all.bash, wait for
	// it to be ready. adb wait-for-device is not enough, we have to

// license that can be found in the LICENSE file.

//go:build linux

package cgotest

/*
#include <unistd.h>
#include <stdbool.h>
#include <sys/syscall.h>
void Gosched(void);
static bool Ctid(void) {
	long tid1 = syscall(SYS_gettid);
	Gosched();
	return tid1 == syscall(SYS_gettid);
}
*/
import "C"

import (
	"runtime"
	"testing"
	"time"
)

//export Gosched
func Gosched() {
	runtime.Gosched()

	// For example, the socket data structures refer
	// to in_addr and in_addr6 structs but we want to be
	// able to treat them as byte arrays, so the godefs
	// inputs in package syscall say
	//
	//	// +godefs map struct_in_addr [4]byte
	//	// +godefs map struct_in_addr6 [16]byte
	//
	for _, g := range f.Comments {
		for _, c := range g.List {
			i := strings.Index(c.Text, "+godefs map")

in a Go source file in the same package. The name of the assembly
function must not contain the package name component (for example,
function <code>Syscall</code> in package <code>syscall</code> should
use the name <code>·Syscall</code> instead of the equivalent name
<code>syscall·Syscall</code> in its <code>TEXT</code> directive).
For more complex situations, explicit annotation is needed.

pkg syscall (freebsd-386-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-386), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-amd64-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-amd64), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-arm64-cgo), type SysProcAttr struct, Jail int #46259

pkg strings, method (*Reader) Reset(string)
pkg syscall (linux-386), type SysProcAttr struct, Unshareflags uintptr
pkg syscall (linux-386-cgo), type SysProcAttr struct, Unshareflags uintptr
pkg syscall (linux-amd64), type SysProcAttr struct, Unshareflags uintptr
pkg syscall (linux-amd64-cgo), type SysProcAttr struct, Unshareflags uintptr
pkg syscall (linux-arm), type SysProcAttr struct, Unshareflags uintptr

	"runtime"
	"strconv"
	"sync"
	"syscall"
)

func init() {
	sysStat = statUnix
}

// userMap and groupMap caches UID and GID lookups for performance reasons.
// The downside is that renaming uname or gname by the OS never takes effect.
var userMap, groupMap sync.Map // map[int]string

func statUnix(fi fs.FileInfo, h *Header, doNameLookups bool) error {
	sys, ok := fi.Sys().(*syscall.Stat_t)
	if !ok {
		return nil
	}

	//	{
	//		outcode(int($1), &nullgen, 0, &$3);
	//	}
	NOP	F2

	//	LNOP imm
	//	{
	//		outcode(int($1), &$2, 0, &nullgen);
	//	}
	NOP	$4

	//
	// special
	//
	SYSCALL
	BREAK
	SYNC

	//
	// conditional move on zero/nonzero gp value
	//
	CMOVN	R1, R2, R3
	CMOVZ	R1, R2, R3

	//
	// conditional move on fp false/true
	//
	CMOVF	R1, R2

	lockName := filepath.Join(os.TempDir(), "go_ios_exec-"+deviceID+".lock")
	lock, err = os.OpenFile(lockName, os.O_CREATE|os.O_RDONLY, 0666)
	if err != nil {
		return 1, err
	}
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 1, err
	}

	if goarch := os.Getenv("GOARCH"); goarch == "arm64" {
		err = runOnDevice(appdir)
	} else {
		err = runOnSimulator(appdir)
	}

	SUBSS (R11), X11                        // f3450f5c1b
	SUBSS X2, X11                           // f3440f5cda
	SUBSS X11, X11                          // f3450f5cdb
	SWAPGS                                  // 0f01f8
	SYSCALL                                 // 0f05
	SYSENTER                                // 0f34
	SYSENTER64                              // 480f34
	SYSEXIT                                 // 0f35