unix: don't export padding fields on Darwin

Re-run ./mkall.sh to avoid exporting Pad_cgo* fields on Darwin.

Updates golang/go#18632

Change-Id: Id9d264293d0b1f1c5581aff289c6e826d63e71ef
Reviewed-on: https://go-review.googlesource.com/102075
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matt Layher <mdlayher@gmail.com>

unix/ztypes_darwin_386.go

@@ -136,13 +136,13 @@ type Fsid struct {
 }
 
 type Dirent struct {
-	Ino       uint64
-	Seekoff   uint64
-	Reclen    uint16
-	Namlen    uint16
-	Type      uint8
-	Name      [1024]int8
-	Pad_cgo_0 [3]byte
+	Ino     uint64
+	Seekoff uint64
+	Reclen  uint16
+	Namlen  uint16
+	Type    uint8
+	Name    [1024]int8
+	_       [3]byte
 }
 
 type RawSockaddrInet4 struct {
@@ -295,14 +295,14 @@ const (
 )
 
 type IfMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Data      IfData
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Data    IfData
 }
 
 type IfData struct {
@@ -338,51 +338,51 @@ type IfData struct {
 }
 
 type IfaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Metric    int32
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Metric  int32
 }
 
 type IfmaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
 }
 
 type IfmaMsghdr2 struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Refcount  int32
+	Msglen   uint16
+	Version  uint8
+	Type     uint8
+	Addrs    int32
+	Flags    int32
+	Index    uint16
+	_        [2]byte
+	Refcount int32
 }
 
 type RtMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Flags     int32
-	Addrs     int32
-	Pid       int32
-	Seq       int32
-	Errno     int32
-	Use       int32
-	Inits     uint32
-	Rmx       RtMetrics
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Index   uint16
+	_       [2]byte
+	Flags   int32
+	Addrs   int32
+	Pid     int32
+	Seq     int32
+	Errno   int32
+	Use     int32
+	Inits   uint32
+	Rmx     RtMetrics
 }
 
 type RtMetrics struct {
@@ -430,11 +430,11 @@ type BpfInsn struct {
 }
 
 type BpfHdr struct {
-	Tstamp    Timeval
-	Caplen    uint32
-	Datalen   uint32
-	Hdrlen    uint16
-	Pad_cgo_0 [2]byte
+	Tstamp  Timeval
+	Caplen  uint32
+	Datalen uint32
+	Hdrlen  uint16
+	_       [2]byte
 }
 
 type Termios struct {

unix/ztypes_darwin_amd64.go

@@ -26,9 +26,9 @@ type Timespec struct {
 }
 
 type Timeval struct {
-	Sec       int64
-	Usec      int32
-	Pad_cgo_0 [4]byte
+	Sec  int64
+	Usec int32
+	_    [4]byte
 }
 
 type Timeval32 struct {
@@ -70,7 +70,7 @@ type Stat_t struct {
 	Uid           uint32
 	Gid           uint32
 	Rdev          int32
-	Pad_cgo_0     [4]byte
+	_             [4]byte
 	Atimespec     Timespec
 	Mtimespec     Timespec
 	Ctimespec     Timespec
@@ -120,9 +120,9 @@ type Fstore_t struct {
 }
 
 type Radvisory_t struct {
-	Offset    int64
-	Count     int32
-	Pad_cgo_0 [4]byte
+	Offset int64
+	Count  int32
+	_      [4]byte
 }
 
 type Fbootstraptransfer_t struct {
@@ -132,9 +132,9 @@ type Fbootstraptransfer_t struct {
 }
 
 type Log2phys_t struct {
-	Flags     uint32
-	Pad_cgo_0 [8]byte
-	Pad_cgo_1 [8]byte
+	Flags uint32
+	_     [8]byte
+	_     [8]byte
 }
 
 type Fsid struct {
@@ -142,13 +142,13 @@ type Fsid struct {
 }
 
 type Dirent struct {
-	Ino       uint64
-	Seekoff   uint64
-	Reclen    uint16
-	Namlen    uint16
-	Type      uint8
-	Name      [1024]int8
-	Pad_cgo_0 [3]byte
+	Ino     uint64
+	Seekoff uint64
+	Reclen  uint16
+	Namlen  uint16
+	Type    uint8
+	Name    [1024]int8
+	_       [3]byte
 }
 
 type RawSockaddrInet4 struct {
@@ -221,10 +221,10 @@ type IPv6Mreq struct {
 type Msghdr struct {
 	Name       *byte
 	Namelen    uint32
-	Pad_cgo_0  [4]byte
+	_          [4]byte
 	Iov        *Iovec
 	Iovlen     int32
-	Pad_cgo_1  [4]byte
+	_          [4]byte
 	Control    *byte
 	Controllen uint32
 	Flags      int32
@@ -303,14 +303,14 @@ const (
 )
 
 type IfMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Data      IfData
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Data    IfData
 }
 
 type IfData struct {
@@ -346,51 +346,51 @@ type IfData struct {
 }
 
 type IfaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Metric    int32
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Metric  int32
 }
 
 type IfmaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
 }
 
 type IfmaMsghdr2 struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Refcount  int32
+	Msglen   uint16
+	Version  uint8
+	Type     uint8
+	Addrs    int32
+	Flags    int32
+	Index    uint16
+	_        [2]byte
+	Refcount int32
 }
 
 type RtMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Flags     int32
-	Addrs     int32
-	Pid       int32
-	Seq       int32
-	Errno     int32
-	Use       int32
-	Inits     uint32
-	Rmx       RtMetrics
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Index   uint16
+	_       [2]byte
+	Flags   int32
+	Addrs   int32
+	Pid     int32
+	Seq     int32
+	Errno   int32
+	Use     int32
+	Inits   uint32
+	Rmx     RtMetrics
 }
 
 type RtMetrics struct {
@@ -426,9 +426,9 @@ type BpfStat struct {
 }
 
 type BpfProgram struct {
-	Len       uint32
-	Pad_cgo_0 [4]byte
-	Insns     *BpfInsn
+	Len   uint32
+	_     [4]byte
+	Insns *BpfInsn
 }
 
 type BpfInsn struct {
@@ -439,22 +439,22 @@ type BpfInsn struct {
 }
 
 type BpfHdr struct {
-	Tstamp    Timeval32
-	Caplen    uint32
-	Datalen   uint32
-	Hdrlen    uint16
-	Pad_cgo_0 [2]byte
+	Tstamp  Timeval32
+	Caplen  uint32
+	Datalen uint32
+	Hdrlen  uint16
+	_       [2]byte
 }
 
 type Termios struct {
-	Iflag     uint64
-	Oflag     uint64
-	Cflag     uint64
-	Lflag     uint64
-	Cc        [20]uint8
-	Pad_cgo_0 [4]byte
-	Ispeed    uint64
-	Ospeed    uint64
+	Iflag  uint64
+	Oflag  uint64
+	Cflag  uint64
+	Lflag  uint64
+	Cc     [20]uint8
+	_      [4]byte
+	Ispeed uint64
+	Ospeed uint64
 }
 
 type Winsize struct {

unix/ztypes_darwin_arm.go

@@ -137,13 +137,13 @@ type Fsid struct {
 }
 
 type Dirent struct {
-	Ino       uint64
-	Seekoff   uint64
-	Reclen    uint16
-	Namlen    uint16
-	Type      uint8
-	Name      [1024]int8
-	Pad_cgo_0 [3]byte
+	Ino     uint64
+	Seekoff uint64
+	Reclen  uint16
+	Namlen  uint16
+	Type    uint8
+	Name    [1024]int8
+	_       [3]byte
 }
 
 type RawSockaddrInet4 struct {
@@ -296,14 +296,14 @@ const (
 )
 
 type IfMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Data      IfData
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Data    IfData
 }
 
 type IfData struct {
@@ -339,51 +339,51 @@ type IfData struct {
 }
 
 type IfaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Metric    int32
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Metric  int32
 }
 
 type IfmaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
 }
 
 type IfmaMsghdr2 struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Refcount  int32
+	Msglen   uint16
+	Version  uint8
+	Type     uint8
+	Addrs    int32
+	Flags    int32
+	Index    uint16
+	_        [2]byte
+	Refcount int32
 }
 
 type RtMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Flags     int32
-	Addrs     int32
-	Pid       int32
-	Seq       int32
-	Errno     int32
-	Use       int32
-	Inits     uint32
-	Rmx       RtMetrics
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Index   uint16
+	_       [2]byte
+	Flags   int32
+	Addrs   int32
+	Pid     int32
+	Seq     int32
+	Errno   int32
+	Use     int32
+	Inits   uint32
+	Rmx     RtMetrics
 }
 
 type RtMetrics struct {
@@ -431,11 +431,11 @@ type BpfInsn struct {
 }
 
 type BpfHdr struct {
-	Tstamp    Timeval
-	Caplen    uint32
-	Datalen   uint32
-	Hdrlen    uint16
-	Pad_cgo_0 [2]byte
+	Tstamp  Timeval
+	Caplen  uint32
+	Datalen uint32
+	Hdrlen  uint16
+	_       [2]byte
 }
 
 type Termios struct {

unix/ztypes_darwin_arm64.go

@@ -26,9 +26,9 @@ type Timespec struct {
 }
 
 type Timeval struct {
-	Sec       int64
-	Usec      int32
-	Pad_cgo_0 [4]byte
+	Sec  int64
+	Usec int32
+	_    [4]byte
 }
 
 type Timeval32 struct {
@@ -70,7 +70,7 @@ type Stat_t struct {
 	Uid           uint32
 	Gid           uint32
 	Rdev          int32
-	Pad_cgo_0     [4]byte
+	_             [4]byte
 	Atimespec     Timespec
 	Mtimespec     Timespec
 	Ctimespec     Timespec
@@ -120,9 +120,9 @@ type Fstore_t struct {
 }
 
 type Radvisory_t struct {
-	Offset    int64
-	Count     int32
-	Pad_cgo_0 [4]byte
+	Offset int64
+	Count  int32
+	_      [4]byte
 }
 
 type Fbootstraptransfer_t struct {
@@ -132,9 +132,9 @@ type Fbootstraptransfer_t struct {
 }
 
 type Log2phys_t struct {
-	Flags     uint32
-	Pad_cgo_0 [8]byte
-	Pad_cgo_1 [8]byte
+	Flags uint32
+	_     [8]byte
+	_     [8]byte
 }
 
 type Fsid struct {
@@ -142,13 +142,13 @@ type Fsid struct {
 }
 
 type Dirent struct {
-	Ino       uint64
-	Seekoff   uint64
-	Reclen    uint16
-	Namlen    uint16
-	Type      uint8
-	Name      [1024]int8
-	Pad_cgo_0 [3]byte
+	Ino     uint64
+	Seekoff uint64
+	Reclen  uint16
+	Namlen  uint16
+	Type    uint8
+	Name    [1024]int8
+	_       [3]byte
 }
 
 type RawSockaddrInet4 struct {
@@ -221,10 +221,10 @@ type IPv6Mreq struct {
 type Msghdr struct {
 	Name       *byte
 	Namelen    uint32
-	Pad_cgo_0  [4]byte
+	_          [4]byte
 	Iov        *Iovec
 	Iovlen     int32
-	Pad_cgo_1  [4]byte
+	_          [4]byte
 	Control    *byte
 	Controllen uint32
 	Flags      int32
@@ -303,14 +303,14 @@ const (
 )
 
 type IfMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Data      IfData
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Data    IfData
 }
 
 type IfData struct {
@@ -346,51 +346,51 @@ type IfData struct {
 }
 
 type IfaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Metric    int32
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+	Metric  int32
 }
 
 type IfmaMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
 }
 
 type IfmaMsghdr2 struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Addrs     int32
-	Flags     int32
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Refcount  int32
+	Msglen   uint16
+	Version  uint8
+	Type     uint8
+	Addrs    int32
+	Flags    int32
+	Index    uint16
+	_        [2]byte
+	Refcount int32
 }
 
 type RtMsghdr struct {
-	Msglen    uint16
-	Version   uint8
-	Type      uint8
-	Index     uint16
-	Pad_cgo_0 [2]byte
-	Flags     int32
-	Addrs     int32
-	Pid       int32
-	Seq       int32
-	Errno     int32
-	Use       int32
-	Inits     uint32
-	Rmx       RtMetrics
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Index   uint16
+	_       [2]byte
+	Flags   int32
+	Addrs   int32
+	Pid     int32
+	Seq     int32
+	Errno   int32
+	Use     int32
+	Inits   uint32
+	Rmx     RtMetrics
 }
 
 type RtMetrics struct {
@@ -426,9 +426,9 @@ type BpfStat struct {
 }
 
 type BpfProgram struct {
-	Len       uint32
-	Pad_cgo_0 [4]byte
-	Insns     *BpfInsn
+	Len   uint32
+	_     [4]byte
+	Insns *BpfInsn
 }
 
 type BpfInsn struct {
@@ -439,22 +439,22 @@ type BpfInsn struct {
 }
 
 type BpfHdr struct {
-	Tstamp    Timeval32
-	Caplen    uint32
-	Datalen   uint32
-	Hdrlen    uint16
-	Pad_cgo_0 [2]byte
+	Tstamp  Timeval32
+	Caplen  uint32
+	Datalen uint32
+	Hdrlen  uint16
+	_       [2]byte
 }
 
 type Termios struct {
-	Iflag     uint64
-	Oflag     uint64
-	Cflag     uint64
-	Lflag     uint64
-	Cc        [20]uint8
-	Pad_cgo_0 [4]byte
-	Ispeed    uint64
-	Ospeed    uint64
+	Iflag  uint64
+	Oflag  uint64
+	Cflag  uint64
+	Lflag  uint64
+	Cc     [20]uint8
+	_      [4]byte
+	Ispeed uint64
+	Ospeed uint64
 }
 
 type Winsize struct {