pkg syscall (freebsd-arm64), type Flock_t struct
pkg syscall (freebsd-arm64), type Flock_t struct, Len int64
pkg syscall (freebsd-arm64), type Flock_t struct, Pad_cgo_0 [4]uint8
pkg syscall (freebsd-arm64), type Flock_t struct, Pid int32
pkg syscall (freebsd-arm64), type Flock_t struct, Start int64
pkg syscall (freebsd-arm64), type Flock_t struct, Sysid int32

pkg syscall (darwin-arm64), type Flock_t struct
pkg syscall (darwin-arm64), type Flock_t struct, Len int64
pkg syscall (darwin-arm64), type Flock_t struct, Pid int32
pkg syscall (darwin-arm64), type Flock_t struct, Start int64
pkg syscall (darwin-arm64), type Flock_t struct, Type int16
pkg syscall (darwin-arm64), type Flock_t struct, Whence int16
pkg syscall (darwin-arm64), type Fsid struct

pkg syscall (freebsd-riscv64), type Flock_t struct #53466
pkg syscall (freebsd-riscv64), type Flock_t struct, Len int64 #53466
pkg syscall (freebsd-riscv64), type Flock_t struct, Pad_cgo_0 [4]uint8 #53466
pkg syscall (freebsd-riscv64), type Flock_t struct, Pid int32 #53466
pkg syscall (freebsd-riscv64), type Flock_t struct, Start int64 #53466
pkg syscall (freebsd-riscv64), type Flock_t struct, Sysid int32 #53466

pkg syscall (darwin-386), const SYS_FILEPORT_MAKEFD = 431
pkg syscall (darwin-386), const SYS_FILEPORT_MAKEPORT = 430
pkg syscall (darwin-386), const SYS_FLISTXATTR = 241
pkg syscall (darwin-386), const SYS_FLOCK = 131
pkg syscall (darwin-386), const SYS_FORK = 2
pkg syscall (darwin-386), const SYS_FPATHCONF = 192
pkg syscall (darwin-386), const SYS_FREMOVEXATTR = 239
pkg syscall (darwin-386), const SYS_FSCTL = 242

// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// This wrapper uses syscall.Flock to prevent concurrent adb commands,
// so for now it only builds on platforms that support that system call.
// TODO(#33974): use a more portable library for file locking.

//go:build darwin || dragonfly || freebsd || illumos || linux || netbsd || openbsd

	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)
	}