pkg/compiler: add bitsize type

This is need for few crypto/xfrm descriptions.

7 files changed, 326 insertions, 332 deletions

diff --git a/sys/linux/386.go b/sys/linux/386.go
index b7a6a4ec0..160d2496d 100644
--- a/sys/linux/386.go
+++ b/sys/linux/386.go
@@ -205,7 +205,7 @@ var structDescs_386 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 4}}, Val: 1886661253},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "flags", TypeSize: 4}}, Kind: 2, RangeEnd: 1},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parnt", TypeSize: 8}}, Kind: 2, RangeEnd: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parent_offset", TypeSize: 8}}, Kind: 2, RangeEnd: 64},
 	}}},
@@ -312,8 +312,8 @@ var structDescs_386 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_transaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 16}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_pid", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_euid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, ByteSize: 1, Buf: "offsets"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, BitSize: 8, Buf: "offsets"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_object"}}, Kind: 1, RangeEnd: 3}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "offsets", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_buffer_offsets", TypeSize: 8}}, Vals: []uint64{0, 24, 32, 40, 48, 56, 64, 72}}}},
 	}}},
@@ -341,10 +341,10 @@ var structDescs_386 = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "binder_cmd_dead_binder_done"}, FldName: "dead_binder_done"},
 	}}},
 	{Key: StructKey{Name: "binder_write_read"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "binder_write_read", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, ByteSize: 1, Buf: "write_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, BitSize: 8, Buf: "write_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "write_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "write_buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_write_cmd"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, ByteSize: 1, Buf: "read_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, BitSize: 8, Buf: "read_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "read_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "read_buffer", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array"}}},
 	}}},
@@ -548,7 +548,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "bpf_prog"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "bpf_prog", TypeSize: 72}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bpf_prog_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, ByteSize: 8, Buf: "insns"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, BitSize: 64, Buf: "insns"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "insns", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "bpf_instructions"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "license", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "string"}, Kind: 2, SubKind: "bpf_licenses", Values: []string{"GPL\x00", "syzkaller\x00"}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "loglev", TypeSize: 4}}},
@@ -746,7 +746,7 @@ var structDescs_386 = []*KeyedStruct{
 	{Key: StructKey{Name: "dccp_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "dccp_header", TypeSize: 16}, Fields: []Type{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "src_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "dst_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "cscov", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, Val: 1},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ccval", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "parent", Protocol: 33},
@@ -1764,7 +1764,7 @@ var structDescs_386 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "seq_num", TypeSize: 2}, BigEndian: true}},
 	}}},
 	{Key: StructKey{Name: "icmp_ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "icmp_ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2159,7 +2159,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "input_mask"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "input_mask", TypeSize: 12}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "input_mask_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{0, 1, 2, 3, 4, 5, 17, 18, 21}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, ByteSize: 1, Buf: "ptr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, BitSize: 8, Buf: "ptr"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "ptr", TypeSize: 4}, Type: &BufferType{}},
 	}}},
 	{Key: StructKey{Name: "io_cmap"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "io_cmap", TypeSize: 48}, Fields: []Type{
@@ -2205,11 +2205,11 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_nl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "netlink_msg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl_xfrm", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &UnionType{Key: StructKey{Name: "netlink_msg_xfrm"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_out"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_out", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "addr", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{ArgDir: 1}}},
@@ -2217,7 +2217,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_sadb_msg"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_sadb_msg", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addr", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "sadb_msg"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "addr"},
 	}}},
 	{Key: StructKey{Name: "ip_mreq"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ip_mreq", TypeSize: 8}, Fields: []Type{
 		&UnionType{Key: StructKey{Name: "ipv4_addr"}, FldName: "imr_multiaddr"},
@@ -2321,7 +2321,7 @@ var structDescs_386 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "a3", TypeSize: 1, ArgDir: 2}}, Val: 187},
 	}}},
 	{Key: StructKey{Name: "ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2560,7 +2560,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_dstopts_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_dstopts_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}}},
@@ -2581,7 +2581,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_hopots_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_hopots_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}, AlignAttr: 8}},
@@ -2616,7 +2616,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_routing_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_routing_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "data"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_routing_types", FldName: "routing_type", TypeSize: 1}}, Vals: []uint64{1, 0, 2}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "segments_left", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 4}}},
@@ -2624,12 +2624,12 @@ var structDescs_386 = []*KeyedStruct{
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso"}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 7},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "payload"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "payload"},
 		&StructType{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, FldName: "payload"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso_payload"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32be", FldName: "domain", TypeSize: 4}, BigEndian: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, ByteSize: 4, Buf: "compartment_bitmap"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, BitSize: 32, Buf: "compartment_bitmap"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sensitivity_level", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "checksum", TypeSize: 2}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "compartment_bitmap"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", TypeSize: 8}}}},
@@ -2646,7 +2646,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_hao"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_hao", TypeSize: 18}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 201},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "addr"},
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "addr"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_jumbo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_jumbo", TypeSize: 6}, Fields: []Type{
@@ -3676,7 +3676,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_alg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_netlink"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_netlink", TypeSize: 28}, Fields: []Type{
@@ -3685,7 +3685,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_nl"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_netrom"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_netrom", TypeSize: 28}, Fields: []Type{
@@ -3694,7 +3694,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_nl_xfrm", TypeSize: 28}, Fields: []Type{
@@ -3712,7 +3712,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_un"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_un", TypeSize: 28}, Fields: []Type{
@@ -3721,7 +3721,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "netlink_msg"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "netlink_msg"}, Fields: []Type{
@@ -3754,7 +3754,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "nl_mmap_req"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "nl_mmap_req", TypeSize: 16}, Fields: []Type{
@@ -3867,7 +3867,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_out"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 4}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 4, IsOptional: true}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, BitSize: 8, Buf: "msg_control"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "msg_flags", TypeSize: 4}}},
 	}}},
 	{Key: StructKey{Name: "rlimit"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "rlimit", TypeSize: 8}, Fields: []Type{
@@ -3931,7 +3931,7 @@ var structDescs_386 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "nivcsw", TypeSize: 4, ArgDir: 1}}},
 	}}},
 	{Key: StructKey{Name: "sadb_address"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_address"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_address_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{5, 6, 7, 23}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_address_proto", TypeSize: 1}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_prefixlens", FldName: "sadb_address_prefixlen", TypeSize: 1}}, Vals: []uint64{32, 128}},
@@ -3962,21 +3962,21 @@ var structDescs_386 = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "in6"},
 	}}},
 	{Key: StructKey{Name: "sadb_ident"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_ident", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_ident_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{10, 11}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_ident_type", TypeSize: 2}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_ident_reserved", TypeSize: 2}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_ident_id", TypeSize: 8}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_key"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_key_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{8, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "sadb_key_bits", TypeSize: 2}}, Buf: "key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "sadb_key_bits", TypeSize: 2}}, BitSize: 1, Buf: "key"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_key_reserved", TypeSize: 2}}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "key"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_lifetime"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_lifetime", TypeSize: 32}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_lifetime_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{2, 3, 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "sadb_lifetime_allocations", TypeSize: 4}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_lifetime_bytes", TypeSize: 8}}},
@@ -3988,14 +3988,14 @@ var structDescs_386 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_type", TypeSize: 1}}, Kind: 2, RangeEnd: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_errno", TypeSize: 1}}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_satype", FldName: "sadb_msg_satype", TypeSize: 1}}, Vals: []uint64{0, 2, 3, 5, 6, 7, 8, 9, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_msg_reserved", TypeSize: 2}}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_seq", TypeSize: 4}}, ValuesStart: 7388453, ValuesPerProc: 8},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_pid", TypeSize: 4}}, ValuesStart: 635427835, ValuesPerProc: 4},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ext_headers"}, Type: &UnionType{Key: StructKey{Name: "sadb_ext_hdr"}}},
 	}}},
 	{Key: StructKey{Name: "sadb_sa"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_sa", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 1},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_sa_spi", TypeSize: 4}, BigEndian: true}, ValuesStart: 1234, ValuesPerProc: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_sa_replay", TypeSize: 1}}},
@@ -4005,14 +4005,14 @@ var structDescs_386 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_sa_flags", FldName: "sadb_sa_flags", TypeSize: 4}}, Vals: []uint64{1, 536870912, 1073741824, 2147483648}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_spirange"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_spirange", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 16},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_min", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_max", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_spirange_reserved", TypeSize: 4}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_filter"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_filter", TypeSize: 40}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 26},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_saddr"},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_daddr"},
@@ -4021,7 +4021,7 @@ var structDescs_386 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_filter_addr_len", FldName: "sadb_x_filter_dplen", TypeSize: 1}}, Vals: []uint64{4, 16}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_ipsecrequest"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_ipsecrequest", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_x_ipsecrequest_proto", TypeSize: 2}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_mode", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_level", TypeSize: 1}}},
@@ -4032,26 +4032,26 @@ var structDescs_386 = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "daddr"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_kmaddress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_kmaddress"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 25},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_kmaddress_reserved", TypeSize: 4}}},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "src"},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "dst"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_port"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_port", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_nat_port_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{21, 22}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_nat_t_port_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_nat_t_port_reserved", TypeSize: 2}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_type"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_type", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 20},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_nat_t_type_type", TypeSize: 1}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "sadb_x_nat_t_type_reserved", TypeSize: 3}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 3, RangeEnd: 3},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_policy"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_policy", TypeSize: 64}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 18},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_x_policy_type", TypeSize: 2}}, Kind: 2, RangeEnd: 4},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipsec_policy_dir", FldName: "sadb_x_policy_dir", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 3, 4}},
@@ -4061,7 +4061,7 @@ var structDescs_386 = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "sadb_x_ipsecrequest"}, FldName: "policy"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sa2"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sa2", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 19},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_sa2_mode", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_sa2_reserved1", TypeSize: 1}}},
@@ -4070,11 +4070,11 @@ var structDescs_386 = []*KeyedStruct{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_sa2_reqid", TypeSize: 4}}, ValuesStart: 13567, ValuesPerProc: 8},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sec_ctx"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sec_ctx"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_alg", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_doi", TypeSize: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, ByteSize: 1, Buf: "ctx"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, BitSize: 8, Buf: "ctx"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ctx"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sched_attr"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sched_attr", TypeSize: 48}, Fields: []Type{
@@ -4214,7 +4214,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "sctp_getaddrs_old", Dir: 2}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_getaddrs_old", TypeSize: 12, ArgDir: 2}, Fields: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "assoc_id", FldName: "assoc_id", TypeSize: 4, ArgDir: 2}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, ByteSize: 1, Buf: "addrs"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, BitSize: 8, Buf: "addrs"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addrs", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
 	}}},
 	{Key: StructKey{Name: "sctp_hmacalgo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_hmacalgo"}, Fields: []Type{
@@ -4430,7 +4430,7 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 4}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, BitSize: 8, Buf: "msg_control"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "msg_flags", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "send_msghdr_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "send_msghdr_key", TypeSize: 28}, Fields: []Type{
@@ -4547,7 +4547,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "snd_ctl_tlv"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_ctl_tlv"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "numid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "tlv"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "tlv"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "tlv"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", TypeSize: 4}}}},
 	}}},
 	{Key: StructKey{Name: "snd_pcm_info"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_pcm_info", TypeSize: 288}, Fields: []Type{
@@ -5488,7 +5488,7 @@ var structDescs_386 = []*KeyedStruct{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "tcp_seq_num", FldName: "ack_num", TypeSize: 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ns", TypeSize: 1}, BitfieldLen: 1, BitfieldMdl: true}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 1}, BitfieldOff: 1, BitfieldLen: 3, BitfieldMdl: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, BitSize: 32, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "tcp_flags", FldName: "flags", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 8, 16, 32, 64, 128, 194}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "window_size", TypeSize: 2}, BigEndian: true}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "tcp_packet", Protocol: 6},
@@ -5967,29 +5967,29 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_aead"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_aead"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_aead_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_auth"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_auth"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_blkcipher"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_blkcipher"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_blkcipher_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_compress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_compress"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_compress_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_hash"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_hash"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_allocspi"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_allocspi"}, Fields: []Type{
@@ -13239,28 +13239,28 @@ var syscalls_386 = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1227, NR: 366, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1228, NR: 366, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1229, NR: 366, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1230, NR: 366, Name: "setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
@@ -13533,28 +13533,28 @@ var syscalls_386 = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1269, NR: 366, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1270, NR: 366, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1271, NR: 366, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1272, NR: 366, Name: "setsockopt$inet_sctp_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
@@ -14612,7 +14612,7 @@ var syscalls_386 = []*Syscall{
 	{ID: 1463, NR: 4, Name: "write$evdev", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_evdev", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "input_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1464, NR: 4, Name: "write$eventfd", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_event", FldName: "fd", TypeSize: 4}},
@@ -14622,12 +14622,12 @@ var syscalls_386 = []*Syscall{
 	{ID: 1465, NR: 4, Name: "write$fuse", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_fuse", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "arg", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "fuse_out"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "arg"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "arg"},
 	}},
 	{ID: 1466, NR: 4, Name: "write$sndseq", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_sndseq", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "snd_seq_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1467, NR: 4, Name: "write$tun", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_tun", FldName: "fd", TypeSize: 4}},
@@ -17920,4 +17920,4 @@ var consts_386 = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_386 = "fee48a31dc67b26cc7a9fcb449101bca47b20f8a"
+const revision_386 = "a422d870ebcb6d4c7a0bc930660401fa661e5a6e"
diff --git a/sys/linux/amd64.go b/sys/linux/amd64.go
index 8c0155967..420a1a09a 100644
--- a/sys/linux/amd64.go
+++ b/sys/linux/amd64.go
@@ -213,7 +213,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 4}}, Val: 1886661253},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "flags", TypeSize: 4}}, Kind: 2, RangeEnd: 1},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parnt", TypeSize: 8}}, Kind: 2, RangeEnd: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parent_offset", TypeSize: 8}}, Kind: 2, RangeEnd: 64},
 	}}},
@@ -320,8 +320,8 @@ var structDescs_amd64 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_transaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 16}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_pid", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_euid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, ByteSize: 1, Buf: "offsets"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, BitSize: 8, Buf: "offsets"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_object"}}, Kind: 1, RangeEnd: 3}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "offsets", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_buffer_offsets", TypeSize: 8}}, Vals: []uint64{0, 24, 32, 40, 48, 56, 64, 72}}}},
 	}}},
@@ -349,10 +349,10 @@ var structDescs_amd64 = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "binder_cmd_dead_binder_done"}, FldName: "dead_binder_done"},
 	}}},
 	{Key: StructKey{Name: "binder_write_read"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "binder_write_read", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, ByteSize: 1, Buf: "write_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, BitSize: 8, Buf: "write_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "write_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "write_buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_write_cmd"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, ByteSize: 1, Buf: "read_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, BitSize: 8, Buf: "read_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "read_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "read_buffer", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array"}}},
 	}}},
@@ -557,7 +557,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "bpf_prog"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "bpf_prog", TypeSize: 72}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bpf_prog_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, ByteSize: 8, Buf: "insns"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, BitSize: 64, Buf: "insns"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "insns", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "bpf_instructions"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "license", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "string"}, Kind: 2, SubKind: "bpf_licenses", Values: []string{"GPL\x00", "syzkaller\x00"}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "loglev", TypeSize: 4}}},
@@ -757,7 +757,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	{Key: StructKey{Name: "dccp_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "dccp_header", TypeSize: 16}, Fields: []Type{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "src_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "dst_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "cscov", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, Val: 1},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ccval", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "parent", Protocol: 33},
@@ -1789,7 +1789,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "seq_num", TypeSize: 2}, BigEndian: true}},
 	}}},
 	{Key: StructKey{Name: "icmp_ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "icmp_ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2186,7 +2186,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "input_mask"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "input_mask", TypeSize: 16}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "input_mask_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{0, 1, 2, 3, 4, 5, 17, 18, 21}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, ByteSize: 1, Buf: "ptr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, BitSize: 8, Buf: "ptr"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "ptr", TypeSize: 8}, Type: &BufferType{}},
 	}}},
 	{Key: StructKey{Name: "io_cmap"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "io_cmap", TypeSize: 48}, Fields: []Type{
@@ -2252,11 +2252,11 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_nl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "netlink_msg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl_xfrm", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "netlink_msg_xfrm"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_out"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_out", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "addr", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{ArgDir: 1}}},
@@ -2264,7 +2264,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_sadb_msg"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_sadb_msg", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addr", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "sadb_msg"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "addr"},
 	}}},
 	{Key: StructKey{Name: "ip_mreq"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ip_mreq", TypeSize: 8}, Fields: []Type{
 		&UnionType{Key: StructKey{Name: "ipv4_addr"}, FldName: "imr_multiaddr"},
@@ -2381,7 +2381,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "a3", TypeSize: 1, ArgDir: 2}}, Val: 187},
 	}}},
 	{Key: StructKey{Name: "ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2620,7 +2620,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_dstopts_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_dstopts_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}}},
@@ -2641,7 +2641,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_hopots_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_hopots_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}, AlignAttr: 8}},
@@ -2676,7 +2676,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_routing_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_routing_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "data"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_routing_types", FldName: "routing_type", TypeSize: 1}}, Vals: []uint64{1, 0, 2}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "segments_left", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 4}}},
@@ -2684,12 +2684,12 @@ var structDescs_amd64 = []*KeyedStruct{
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso"}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 7},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "payload"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "payload"},
 		&StructType{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, FldName: "payload"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso_payload"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32be", FldName: "domain", TypeSize: 4}, BigEndian: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, ByteSize: 4, Buf: "compartment_bitmap"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, BitSize: 32, Buf: "compartment_bitmap"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sensitivity_level", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "checksum", TypeSize: 2}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "compartment_bitmap"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", TypeSize: 8}}}},
@@ -2706,7 +2706,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_hao"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_hao", TypeSize: 18}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 201},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "addr"},
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "addr"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_jumbo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_jumbo", TypeSize: 6}, Fields: []Type{
@@ -3747,7 +3747,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_alg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3758,7 +3758,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_nl"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3769,7 +3769,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3791,7 +3791,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3802,7 +3802,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3850,7 +3850,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3965,7 +3965,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_out"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 8}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 8, IsOptional: true}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, BitSize: 8, Buf: "msg_control"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "msg_flags", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -4029,7 +4029,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "nivcsw", TypeSize: 8, ArgDir: 1}}},
 	}}},
 	{Key: StructKey{Name: "sadb_address"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_address"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_address_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{5, 6, 7, 23}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_address_proto", TypeSize: 1}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_prefixlens", FldName: "sadb_address_prefixlen", TypeSize: 1}}, Vals: []uint64{32, 128}},
@@ -4060,21 +4060,21 @@ var structDescs_amd64 = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "in6"},
 	}}},
 	{Key: StructKey{Name: "sadb_ident"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_ident", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_ident_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{10, 11}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_ident_type", TypeSize: 2}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_ident_reserved", TypeSize: 2}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_ident_id", TypeSize: 8}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_key"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_key_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{8, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "sadb_key_bits", TypeSize: 2}}, Buf: "key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "sadb_key_bits", TypeSize: 2}}, BitSize: 1, Buf: "key"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_key_reserved", TypeSize: 2}}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "key"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_lifetime"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_lifetime", TypeSize: 32}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_lifetime_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{2, 3, 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "sadb_lifetime_allocations", TypeSize: 4}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_lifetime_bytes", TypeSize: 8}}},
@@ -4086,14 +4086,14 @@ var structDescs_amd64 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_type", TypeSize: 1}}, Kind: 2, RangeEnd: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_errno", TypeSize: 1}}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_satype", FldName: "sadb_msg_satype", TypeSize: 1}}, Vals: []uint64{0, 2, 3, 5, 6, 7, 8, 9, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_msg_reserved", TypeSize: 2}}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_seq", TypeSize: 4}}, ValuesStart: 7388453, ValuesPerProc: 8},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_pid", TypeSize: 4}}, ValuesStart: 635427835, ValuesPerProc: 4},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ext_headers"}, Type: &UnionType{Key: StructKey{Name: "sadb_ext_hdr"}}},
 	}}},
 	{Key: StructKey{Name: "sadb_sa"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_sa", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 1},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_sa_spi", TypeSize: 4}, BigEndian: true}, ValuesStart: 1234, ValuesPerProc: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_sa_replay", TypeSize: 1}}},
@@ -4103,14 +4103,14 @@ var structDescs_amd64 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_sa_flags", FldName: "sadb_sa_flags", TypeSize: 4}}, Vals: []uint64{1, 536870912, 1073741824, 2147483648}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_spirange"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_spirange", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 16},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_min", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_max", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_spirange_reserved", TypeSize: 4}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_filter"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_filter", TypeSize: 40}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 26},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_saddr"},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_daddr"},
@@ -4119,7 +4119,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_filter_addr_len", FldName: "sadb_x_filter_dplen", TypeSize: 1}}, Vals: []uint64{4, 16}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_ipsecrequest"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_ipsecrequest", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_x_ipsecrequest_proto", TypeSize: 2}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_mode", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_level", TypeSize: 1}}},
@@ -4130,26 +4130,26 @@ var structDescs_amd64 = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "daddr"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_kmaddress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_kmaddress"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 25},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_kmaddress_reserved", TypeSize: 4}}},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "src"},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "dst"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_port"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_port", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_nat_port_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{21, 22}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_nat_t_port_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_nat_t_port_reserved", TypeSize: 2}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_type"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_type", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 20},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_nat_t_type_type", TypeSize: 1}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "sadb_x_nat_t_type_reserved", TypeSize: 3}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 3, RangeEnd: 3},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_policy"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_policy", TypeSize: 64}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 18},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_x_policy_type", TypeSize: 2}}, Kind: 2, RangeEnd: 4},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipsec_policy_dir", FldName: "sadb_x_policy_dir", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 3, 4}},
@@ -4159,7 +4159,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "sadb_x_ipsecrequest"}, FldName: "policy"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sa2"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sa2", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 19},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_sa2_mode", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_sa2_reserved1", TypeSize: 1}}},
@@ -4168,11 +4168,11 @@ var structDescs_amd64 = []*KeyedStruct{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_sa2_reqid", TypeSize: 4}}, ValuesStart: 13567, ValuesPerProc: 8},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sec_ctx"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sec_ctx"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_alg", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_doi", TypeSize: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, ByteSize: 1, Buf: "ctx"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, BitSize: 8, Buf: "ctx"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ctx"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sched_attr"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sched_attr", TypeSize: 48}, Fields: []Type{
@@ -4312,7 +4312,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "sctp_getaddrs_old", Dir: 2}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_getaddrs_old", TypeSize: 16, ArgDir: 2}, Fields: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "assoc_id", FldName: "assoc_id", TypeSize: 4, ArgDir: 2}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, ByteSize: 1, Buf: "addrs"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, BitSize: 8, Buf: "addrs"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addrs", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
 	}}},
 	{Key: StructKey{Name: "sctp_hmacalgo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_hmacalgo"}, Fields: []Type{
@@ -4542,7 +4542,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 8}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, BitSize: 8, Buf: "msg_control"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "msg_flags", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -4674,7 +4674,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "snd_ctl_tlv"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_ctl_tlv"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "numid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "tlv"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "tlv"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "tlv"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", TypeSize: 4}}}},
 	}}},
 	{Key: StructKey{Name: "snd_pcm_info"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_pcm_info", TypeSize: 288}, Fields: []Type{
@@ -5625,7 +5625,7 @@ var structDescs_amd64 = []*KeyedStruct{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "tcp_seq_num", FldName: "ack_num", TypeSize: 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ns", TypeSize: 1}, BitfieldLen: 1, BitfieldMdl: true}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 1}, BitfieldOff: 1, BitfieldLen: 3, BitfieldMdl: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, BitSize: 32, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "tcp_flags", FldName: "flags", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 8, 16, 32, 64, 128, 194}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "window_size", TypeSize: 2}, BigEndian: true}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "tcp_packet", Protocol: 6},
@@ -6155,29 +6155,29 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_aead"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_aead"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_aead_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_auth"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_auth"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_blkcipher"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_blkcipher"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_blkcipher_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_compress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_compress"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_compress_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_hash"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_hash"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_allocspi"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_allocspi"}, Fields: []Type{
@@ -13679,28 +13679,28 @@ var syscalls_amd64 = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1275, NR: 54, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1276, NR: 54, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1277, NR: 54, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1278, NR: 54, Name: "setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
@@ -13973,28 +13973,28 @@ var syscalls_amd64 = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1317, NR: 54, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1318, NR: 54, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1319, NR: 54, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1320, NR: 54, Name: "setsockopt$inet_sctp_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
@@ -15109,7 +15109,7 @@ var syscalls_amd64 = []*Syscall{
 	{ID: 1523, NR: 1, Name: "write$evdev", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_evdev", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "input_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1524, NR: 1, Name: "write$eventfd", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_event", FldName: "fd", TypeSize: 4}},
@@ -15119,12 +15119,12 @@ var syscalls_amd64 = []*Syscall{
 	{ID: 1525, NR: 1, Name: "write$fuse", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_fuse", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "arg", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "fuse_out"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "arg"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "arg"},
 	}},
 	{ID: 1526, NR: 1, Name: "write$sndseq", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_sndseq", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "snd_seq_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1527, NR: 1, Name: "write$tun", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_tun", FldName: "fd", TypeSize: 4}},
@@ -18449,4 +18449,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_amd64 = "e4f21c04e2926d05b33ef3bd4cc96a62cca5c6b8"
+const revision_amd64 = "30a3d7b3bf83f83a7b8d55ee7989ada3383f37f2"
diff --git a/sys/linux/arm.go b/sys/linux/arm.go
index 16791ecf0..eb57d744d 100644
--- a/sys/linux/arm.go
+++ b/sys/linux/arm.go
@@ -210,7 +210,7 @@ var structDescs_arm = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 4}}, Val: 1886661253},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "flags", TypeSize: 4}}, Kind: 2, RangeEnd: 1},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parnt", TypeSize: 8}}, Kind: 2, RangeEnd: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parent_offset", TypeSize: 8}}, Kind: 2, RangeEnd: 64},
 	}}},
@@ -317,8 +317,8 @@ var structDescs_arm = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_transaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 16}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_pid", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_euid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, ByteSize: 1, Buf: "offsets"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, BitSize: 8, Buf: "offsets"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_object"}}, Kind: 1, RangeEnd: 3}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "offsets", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_buffer_offsets", TypeSize: 8}}, Vals: []uint64{0, 24, 32, 40, 48, 56, 64, 72}}}},
 	}}},
@@ -346,10 +346,10 @@ var structDescs_arm = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "binder_cmd_dead_binder_done"}, FldName: "dead_binder_done"},
 	}}},
 	{Key: StructKey{Name: "binder_write_read"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "binder_write_read", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, ByteSize: 1, Buf: "write_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, BitSize: 8, Buf: "write_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "write_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "write_buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_write_cmd"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, ByteSize: 1, Buf: "read_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, BitSize: 8, Buf: "read_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "read_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "read_buffer", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array"}}},
 	}}},
@@ -553,7 +553,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "bpf_prog"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "bpf_prog", TypeSize: 72}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bpf_prog_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, ByteSize: 8, Buf: "insns"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, BitSize: 64, Buf: "insns"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "insns", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "bpf_instructions"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "license", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "string"}, Kind: 2, SubKind: "bpf_licenses", Values: []string{"GPL\x00", "syzkaller\x00"}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "loglev", TypeSize: 4}}},
@@ -751,7 +751,7 @@ var structDescs_arm = []*KeyedStruct{
 	{Key: StructKey{Name: "dccp_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "dccp_header", TypeSize: 16}, Fields: []Type{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "src_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "dst_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "cscov", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, Val: 1},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ccval", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "parent", Protocol: 33},
@@ -1769,7 +1769,7 @@ var structDescs_arm = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "seq_num", TypeSize: 2}, BigEndian: true}},
 	}}},
 	{Key: StructKey{Name: "icmp_ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "icmp_ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2164,7 +2164,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "input_mask"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "input_mask", TypeSize: 12}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "input_mask_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{0, 1, 2, 3, 4, 5, 17, 18, 21}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, ByteSize: 1, Buf: "ptr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, BitSize: 8, Buf: "ptr"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "ptr", TypeSize: 4}, Type: &BufferType{}},
 	}}},
 	{Key: StructKey{Name: "io_cmap"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "io_cmap", TypeSize: 48}, Fields: []Type{
@@ -2210,11 +2210,11 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_nl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "netlink_msg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl_xfrm", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &UnionType{Key: StructKey{Name: "netlink_msg_xfrm"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_out"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_out", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "addr", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{ArgDir: 1}}},
@@ -2222,7 +2222,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_sadb_msg"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_sadb_msg", TypeSize: 8}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addr", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "sadb_msg"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "addr"},
 	}}},
 	{Key: StructKey{Name: "ip_mreq"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ip_mreq", TypeSize: 8}, Fields: []Type{
 		&UnionType{Key: StructKey{Name: "ipv4_addr"}, FldName: "imr_multiaddr"},
@@ -2338,7 +2338,7 @@ var structDescs_arm = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "a3", TypeSize: 1, ArgDir: 2}}, Val: 187},
 	}}},
 	{Key: StructKey{Name: "ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2577,7 +2577,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_dstopts_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_dstopts_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}}},
@@ -2598,7 +2598,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_hopots_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_hopots_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}, AlignAttr: 8}},
@@ -2633,7 +2633,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_routing_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_routing_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "data"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_routing_types", FldName: "routing_type", TypeSize: 1}}, Vals: []uint64{1, 0, 2}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "segments_left", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 4}}},
@@ -2641,12 +2641,12 @@ var structDescs_arm = []*KeyedStruct{
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso"}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 7},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "payload"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "payload"},
 		&StructType{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, FldName: "payload"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso_payload"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32be", FldName: "domain", TypeSize: 4}, BigEndian: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, ByteSize: 4, Buf: "compartment_bitmap"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, BitSize: 32, Buf: "compartment_bitmap"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sensitivity_level", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "checksum", TypeSize: 2}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "compartment_bitmap"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", TypeSize: 8}}}},
@@ -2663,7 +2663,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_hao"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_hao", TypeSize: 18}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 201},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "addr"},
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "addr"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_jumbo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_jumbo", TypeSize: 6}, Fields: []Type{
@@ -3506,7 +3506,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_alg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_netlink"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_netlink", TypeSize: 28}, Fields: []Type{
@@ -3515,7 +3515,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_nl"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_netrom"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_netrom", TypeSize: 28}, Fields: []Type{
@@ -3524,7 +3524,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_nl_xfrm", TypeSize: 28}, Fields: []Type{
@@ -3542,7 +3542,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msghdr_un"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msghdr_un", TypeSize: 28}, Fields: []Type{
@@ -3551,7 +3551,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "msqid_ds"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "msqid_ds", TypeSize: 76}, Fields: []Type{
@@ -3597,7 +3597,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 4}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 4, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 4}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "nl_mmap_req"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "nl_mmap_req", TypeSize: 16}, Fields: []Type{
@@ -3710,7 +3710,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_out"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 4}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 4, IsOptional: true}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, BitSize: 8, Buf: "msg_control"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "msg_flags", TypeSize: 4}}},
 	}}},
 	{Key: StructKey{Name: "rlimit"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "rlimit", TypeSize: 8}, Fields: []Type{
@@ -3774,7 +3774,7 @@ var structDescs_arm = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "nivcsw", TypeSize: 4, ArgDir: 1}}},
 	}}},
 	{Key: StructKey{Name: "sadb_address"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_address"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_address_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{5, 6, 7, 23}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_address_proto", TypeSize: 1}}, Vals: []uint64{51, 50, 108, 60, 43}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_prefixlens", FldName: "sadb_address_prefixlen", TypeSize: 1}}, Vals: []uint64{32, 128}},
@@ -3805,21 +3805,21 @@ var structDescs_arm = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "in6"},
 	}}},
 	{Key: StructKey{Name: "sadb_ident"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_ident", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_ident_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{10, 11}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_ident_type", TypeSize: 2}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_ident_reserved", TypeSize: 2}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_ident_id", TypeSize: 8}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_key"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_key_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{8, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "sadb_key_bits", TypeSize: 2}}, Buf: "key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "sadb_key_bits", TypeSize: 2}}, BitSize: 1, Buf: "key"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_key_reserved", TypeSize: 2}}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "key"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_lifetime"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_lifetime", TypeSize: 32}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_lifetime_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{2, 3, 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "sadb_lifetime_allocations", TypeSize: 4}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_lifetime_bytes", TypeSize: 8}}},
@@ -3831,14 +3831,14 @@ var structDescs_arm = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_type", TypeSize: 1}}, Kind: 2, RangeEnd: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_errno", TypeSize: 1}}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_satype", FldName: "sadb_msg_satype", TypeSize: 1}}, Vals: []uint64{0, 2, 3, 5, 6, 7, 8, 9, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_msg_reserved", TypeSize: 2}}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_seq", TypeSize: 4}}, ValuesStart: 7388453, ValuesPerProc: 8},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_pid", TypeSize: 4}}, ValuesStart: 635427835, ValuesPerProc: 4},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ext_headers"}, Type: &UnionType{Key: StructKey{Name: "sadb_ext_hdr"}}},
 	}}},
 	{Key: StructKey{Name: "sadb_sa"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_sa", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 1},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_sa_spi", TypeSize: 4}, BigEndian: true}, ValuesStart: 1234, ValuesPerProc: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_sa_replay", TypeSize: 1}}},
@@ -3848,14 +3848,14 @@ var structDescs_arm = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_sa_flags", FldName: "sadb_sa_flags", TypeSize: 4}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_spirange"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_spirange", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 16},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_min", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_max", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_spirange_reserved", TypeSize: 4}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_filter"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_filter", TypeSize: 40}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 26},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_saddr"},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_daddr"},
@@ -3864,7 +3864,7 @@ var structDescs_arm = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_filter_addr_len", FldName: "sadb_x_filter_dplen", TypeSize: 1}}, Vals: []uint64{4, 16}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_ipsecrequest"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_ipsecrequest", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_x_ipsecrequest_proto", TypeSize: 2}}, Vals: []uint64{51, 50, 108, 60, 43}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_mode", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_level", TypeSize: 1}}},
@@ -3875,26 +3875,26 @@ var structDescs_arm = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "daddr"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_kmaddress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_kmaddress"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 25},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_kmaddress_reserved", TypeSize: 4}}},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "src"},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "dst"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_port"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_port", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_nat_port_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{21, 22}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_nat_t_port_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_nat_t_port_reserved", TypeSize: 2}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_type"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_type", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 20},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_nat_t_type_type", TypeSize: 1}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "sadb_x_nat_t_type_reserved", TypeSize: 3}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 3, RangeEnd: 3},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_policy"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_policy", TypeSize: 64}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 18},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_x_policy_type", TypeSize: 2}}, Kind: 2, RangeEnd: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipsec_policy_dir", FldName: "sadb_x_policy_dir", TypeSize: 1}}},
@@ -3904,7 +3904,7 @@ var structDescs_arm = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "sadb_x_ipsecrequest"}, FldName: "policy"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sa2"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sa2", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 19},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_sa2_mode", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_sa2_reserved1", TypeSize: 1}}},
@@ -3913,11 +3913,11 @@ var structDescs_arm = []*KeyedStruct{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_sa2_reqid", TypeSize: 4}}, ValuesStart: 13567, ValuesPerProc: 8},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sec_ctx"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sec_ctx"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_alg", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_doi", TypeSize: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, ByteSize: 1, Buf: "ctx"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, BitSize: 8, Buf: "ctx"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ctx"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sched_attr"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sched_attr", TypeSize: 48}, Fields: []Type{
@@ -4057,7 +4057,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "sctp_getaddrs_old", Dir: 2}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_getaddrs_old", TypeSize: 12, ArgDir: 2}, Fields: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "assoc_id", FldName: "assoc_id", TypeSize: 4, ArgDir: 2}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, ByteSize: 1, Buf: "addrs"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, BitSize: 8, Buf: "addrs"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addrs", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
 	}}},
 	{Key: StructKey{Name: "sctp_hmacalgo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_hmacalgo"}, Fields: []Type{
@@ -4286,7 +4286,7 @@ var structDescs_arm = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 4}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 4, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 4}}, BitSize: 8, Buf: "msg_control"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "msg_flags", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 	}}},
 	{Key: StructKey{Name: "send_msghdr_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "send_msghdr_key", TypeSize: 28}, Fields: []Type{
@@ -4416,7 +4416,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "snd_ctl_tlv"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_ctl_tlv"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "numid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "tlv"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "tlv"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "tlv"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", TypeSize: 4}}}},
 	}}},
 	{Key: StructKey{Name: "snd_pcm_info"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_pcm_info", TypeSize: 288}, Fields: []Type{
@@ -5357,7 +5357,7 @@ var structDescs_arm = []*KeyedStruct{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "tcp_seq_num", FldName: "ack_num", TypeSize: 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ns", TypeSize: 1}, BitfieldLen: 1, BitfieldMdl: true}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 1}, BitfieldOff: 1, BitfieldLen: 3, BitfieldMdl: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, BitSize: 32, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "tcp_flags", FldName: "flags", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 8, 16, 32, 64, 128, 194}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "window_size", TypeSize: 2}, BigEndian: true}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "tcp_packet", Protocol: 6},
@@ -5816,29 +5816,29 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_aead"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_aead"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_aead_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_auth"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_auth"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_blkcipher"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_blkcipher"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_blkcipher_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_compress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_compress"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_compress_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_hash"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_hash"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_allocspi"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_allocspi"}, Fields: []Type{
@@ -13112,28 +13112,28 @@ var syscalls_arm = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1228, NR: 294, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1229, NR: 294, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1230, NR: 294, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1231, NR: 294, Name: "setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
@@ -13406,28 +13406,28 @@ var syscalls_arm = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1270, NR: 294, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1271, NR: 294, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1272, NR: 294, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 4}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 4}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1273, NR: 294, Name: "setsockopt$inet_sctp_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
@@ -14529,7 +14529,7 @@ var syscalls_arm = []*Syscall{
 	{ID: 1473, NR: 4, Name: "write$evdev", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_evdev", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "input_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1474, NR: 4, Name: "write$eventfd", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_event", FldName: "fd", TypeSize: 4}},
@@ -14539,12 +14539,12 @@ var syscalls_arm = []*Syscall{
 	{ID: 1475, NR: 4, Name: "write$fuse", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_fuse", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "arg", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "fuse_out"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "arg"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "arg"},
 	}},
 	{ID: 1476, NR: 4, Name: "write$sndseq", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_sndseq", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "snd_seq_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1477, NR: 4, Name: "write$tun", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_tun", FldName: "fd", TypeSize: 4}},
@@ -17717,4 +17717,4 @@ var consts_arm = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_arm = "152f918ffda73145d892faae9b6754214f34b6fc"
+const revision_arm = "8af0eb5972040d154dfc38d5f3d39c073da34609"
diff --git a/sys/linux/arm64.go b/sys/linux/arm64.go
index 8d6beb0f9..c0ea8fbcb 100644
--- a/sys/linux/arm64.go
+++ b/sys/linux/arm64.go
@@ -213,7 +213,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 4}}, Val: 1886661253},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "flags", TypeSize: 4}}, Kind: 2, RangeEnd: 1},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parnt", TypeSize: 8}}, Kind: 2, RangeEnd: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parent_offset", TypeSize: 8}}, Kind: 2, RangeEnd: 64},
 	}}},
@@ -320,8 +320,8 @@ var structDescs_arm64 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_transaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 16}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_pid", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_euid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, ByteSize: 1, Buf: "offsets"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, BitSize: 8, Buf: "offsets"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_object"}}, Kind: 1, RangeEnd: 3}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "offsets", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_buffer_offsets", TypeSize: 8}}, Vals: []uint64{0, 24, 32, 40, 48, 56, 64, 72}}}},
 	}}},
@@ -349,10 +349,10 @@ var structDescs_arm64 = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "binder_cmd_dead_binder_done"}, FldName: "dead_binder_done"},
 	}}},
 	{Key: StructKey{Name: "binder_write_read"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "binder_write_read", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, ByteSize: 1, Buf: "write_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, BitSize: 8, Buf: "write_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "write_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "write_buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_write_cmd"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, ByteSize: 1, Buf: "read_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, BitSize: 8, Buf: "read_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "read_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "read_buffer", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array"}}},
 	}}},
@@ -557,7 +557,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "bpf_prog"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "bpf_prog", TypeSize: 72}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bpf_prog_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, ByteSize: 8, Buf: "insns"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, BitSize: 64, Buf: "insns"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "insns", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "bpf_instructions"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "license", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "string"}, Kind: 2, SubKind: "bpf_licenses", Values: []string{"GPL\x00", "syzkaller\x00"}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "loglev", TypeSize: 4}}},
@@ -757,7 +757,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	{Key: StructKey{Name: "dccp_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "dccp_header", TypeSize: 16}, Fields: []Type{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "src_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "dst_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "cscov", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, Val: 1},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ccval", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "parent", Protocol: 33},
@@ -1789,7 +1789,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "seq_num", TypeSize: 2}, BigEndian: true}},
 	}}},
 	{Key: StructKey{Name: "icmp_ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "icmp_ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2186,7 +2186,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "input_mask"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "input_mask", TypeSize: 16}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "input_mask_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{0, 1, 2, 3, 4, 5, 17, 18, 21}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, ByteSize: 1, Buf: "ptr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, BitSize: 8, Buf: "ptr"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "ptr", TypeSize: 8}, Type: &BufferType{}},
 	}}},
 	{Key: StructKey{Name: "io_cmap"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "io_cmap", TypeSize: 48}, Fields: []Type{
@@ -2252,11 +2252,11 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_nl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "netlink_msg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl_xfrm", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "netlink_msg_xfrm"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_out"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_out", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "addr", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{ArgDir: 1}}},
@@ -2264,7 +2264,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_sadb_msg"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_sadb_msg", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addr", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "sadb_msg"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "addr"},
 	}}},
 	{Key: StructKey{Name: "ip_mreq"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ip_mreq", TypeSize: 8}, Fields: []Type{
 		&UnionType{Key: StructKey{Name: "ipv4_addr"}, FldName: "imr_multiaddr"},
@@ -2381,7 +2381,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "a3", TypeSize: 1, ArgDir: 2}}, Val: 187},
 	}}},
 	{Key: StructKey{Name: "ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2620,7 +2620,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_dstopts_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_dstopts_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}}},
@@ -2641,7 +2641,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_hopots_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_hopots_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}, AlignAttr: 8}},
@@ -2676,7 +2676,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_routing_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_routing_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "data"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_routing_types", FldName: "routing_type", TypeSize: 1}}, Vals: []uint64{1, 0, 2}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "segments_left", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 4}}},
@@ -2684,12 +2684,12 @@ var structDescs_arm64 = []*KeyedStruct{
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso"}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 7},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "payload"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "payload"},
 		&StructType{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, FldName: "payload"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso_payload"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32be", FldName: "domain", TypeSize: 4}, BigEndian: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, ByteSize: 4, Buf: "compartment_bitmap"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, BitSize: 32, Buf: "compartment_bitmap"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sensitivity_level", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "checksum", TypeSize: 2}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "compartment_bitmap"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", TypeSize: 8}}}},
@@ -2706,7 +2706,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_hao"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_hao", TypeSize: 18}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 201},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "addr"},
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "addr"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_jumbo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_jumbo", TypeSize: 6}, Fields: []Type{
@@ -3552,7 +3552,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_alg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3563,7 +3563,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_nl"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3574,7 +3574,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3596,7 +3596,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3607,7 +3607,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3655,7 +3655,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3770,7 +3770,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_out"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 8}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 8, IsOptional: true}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, BitSize: 8, Buf: "msg_control"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "msg_flags", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3834,7 +3834,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "nivcsw", TypeSize: 8, ArgDir: 1}}},
 	}}},
 	{Key: StructKey{Name: "sadb_address"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_address"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_address_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{5, 6, 7, 23}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_address_proto", TypeSize: 1}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_prefixlens", FldName: "sadb_address_prefixlen", TypeSize: 1}}, Vals: []uint64{32, 128}},
@@ -3865,21 +3865,21 @@ var structDescs_arm64 = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "in6"},
 	}}},
 	{Key: StructKey{Name: "sadb_ident"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_ident", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_ident_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{10, 11}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_ident_type", TypeSize: 2}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_ident_reserved", TypeSize: 2}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_ident_id", TypeSize: 8}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_key"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_key_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{8, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "sadb_key_bits", TypeSize: 2}}, Buf: "key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "sadb_key_bits", TypeSize: 2}}, BitSize: 1, Buf: "key"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_key_reserved", TypeSize: 2}}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "key"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_lifetime"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_lifetime", TypeSize: 32}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_lifetime_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{2, 3, 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "sadb_lifetime_allocations", TypeSize: 4}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_lifetime_bytes", TypeSize: 8}}},
@@ -3891,14 +3891,14 @@ var structDescs_arm64 = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_type", TypeSize: 1}}, Kind: 2, RangeEnd: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_errno", TypeSize: 1}}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_satype", FldName: "sadb_msg_satype", TypeSize: 1}}, Vals: []uint64{0, 2, 3, 5, 6, 7, 8, 9, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_msg_reserved", TypeSize: 2}}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_seq", TypeSize: 4}}, ValuesStart: 7388453, ValuesPerProc: 8},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_pid", TypeSize: 4}}, ValuesStart: 635427835, ValuesPerProc: 4},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ext_headers"}, Type: &UnionType{Key: StructKey{Name: "sadb_ext_hdr"}}},
 	}}},
 	{Key: StructKey{Name: "sadb_sa"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_sa", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 1},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_sa_spi", TypeSize: 4}, BigEndian: true}, ValuesStart: 1234, ValuesPerProc: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_sa_replay", TypeSize: 1}}},
@@ -3908,14 +3908,14 @@ var structDescs_arm64 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_sa_flags", FldName: "sadb_sa_flags", TypeSize: 4}}, Vals: []uint64{1, 536870912, 1073741824, 2147483648}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_spirange"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_spirange", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 16},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_min", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_max", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_spirange_reserved", TypeSize: 4}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_filter"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_filter", TypeSize: 40}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 26},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_saddr"},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_daddr"},
@@ -3924,7 +3924,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_filter_addr_len", FldName: "sadb_x_filter_dplen", TypeSize: 1}}, Vals: []uint64{4, 16}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_ipsecrequest"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_ipsecrequest", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_x_ipsecrequest_proto", TypeSize: 2}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_mode", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_level", TypeSize: 1}}},
@@ -3935,26 +3935,26 @@ var structDescs_arm64 = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "daddr"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_kmaddress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_kmaddress"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 25},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_kmaddress_reserved", TypeSize: 4}}},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "src"},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "dst"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_port"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_port", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_nat_port_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{21, 22}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_nat_t_port_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_nat_t_port_reserved", TypeSize: 2}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_type"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_type", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 20},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_nat_t_type_type", TypeSize: 1}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "sadb_x_nat_t_type_reserved", TypeSize: 3}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 3, RangeEnd: 3},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_policy"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_policy", TypeSize: 64}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 18},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_x_policy_type", TypeSize: 2}}, Kind: 2, RangeEnd: 4},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipsec_policy_dir", FldName: "sadb_x_policy_dir", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 3, 4}},
@@ -3964,7 +3964,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "sadb_x_ipsecrequest"}, FldName: "policy"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sa2"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sa2", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 19},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_sa2_mode", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_sa2_reserved1", TypeSize: 1}}},
@@ -3973,11 +3973,11 @@ var structDescs_arm64 = []*KeyedStruct{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_sa2_reqid", TypeSize: 4}}, ValuesStart: 13567, ValuesPerProc: 8},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sec_ctx"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sec_ctx"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_alg", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_doi", TypeSize: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, ByteSize: 1, Buf: "ctx"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, BitSize: 8, Buf: "ctx"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ctx"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sched_attr"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sched_attr", TypeSize: 48}, Fields: []Type{
@@ -4117,7 +4117,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "sctp_getaddrs_old", Dir: 2}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_getaddrs_old", TypeSize: 16, ArgDir: 2}, Fields: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "assoc_id", FldName: "assoc_id", TypeSize: 4, ArgDir: 2}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, ByteSize: 1, Buf: "addrs"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, BitSize: 8, Buf: "addrs"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addrs", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
 	}}},
 	{Key: StructKey{Name: "sctp_hmacalgo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_hmacalgo"}, Fields: []Type{
@@ -4347,7 +4347,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 8}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, BitSize: 8, Buf: "msg_control"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "msg_flags", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -4479,7 +4479,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "snd_ctl_tlv"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_ctl_tlv"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "numid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "tlv"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "tlv"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "tlv"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", TypeSize: 4}}}},
 	}}},
 	{Key: StructKey{Name: "snd_pcm_info"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_pcm_info", TypeSize: 288}, Fields: []Type{
@@ -5430,7 +5430,7 @@ var structDescs_arm64 = []*KeyedStruct{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "tcp_seq_num", FldName: "ack_num", TypeSize: 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ns", TypeSize: 1}, BitfieldLen: 1, BitfieldMdl: true}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 1}, BitfieldOff: 1, BitfieldLen: 3, BitfieldMdl: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, BitSize: 32, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "tcp_flags", FldName: "flags", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 8, 16, 32, 64, 128, 194}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "window_size", TypeSize: 2}, BigEndian: true}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "tcp_packet", Protocol: 6},
@@ -5931,29 +5931,29 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_aead"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_aead"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_aead_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_auth"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_auth"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_blkcipher"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_blkcipher"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_blkcipher_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_compress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_compress"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_compress_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_hash"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_hash"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_allocspi"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_allocspi"}, Fields: []Type{
@@ -13191,28 +13191,28 @@ var syscalls_arm64 = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1216, NR: 208, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1217, NR: 208, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1218, NR: 208, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1219, NR: 208, Name: "setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
@@ -13485,28 +13485,28 @@ var syscalls_arm64 = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1258, NR: 208, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1259, NR: 208, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1260, NR: 208, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1261, NR: 208, Name: "setsockopt$inet_sctp_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
@@ -14575,7 +14575,7 @@ var syscalls_arm64 = []*Syscall{
 	{ID: 1452, NR: 64, Name: "write$evdev", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_evdev", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "input_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1453, NR: 64, Name: "write$eventfd", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_event", FldName: "fd", TypeSize: 4}},
@@ -14585,12 +14585,12 @@ var syscalls_arm64 = []*Syscall{
 	{ID: 1454, NR: 64, Name: "write$fuse", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_fuse", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "arg", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "fuse_out"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "arg"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "arg"},
 	}},
 	{ID: 1455, NR: 64, Name: "write$sndseq", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_sndseq", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "snd_seq_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1456, NR: 64, Name: "write$tun", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_tun", FldName: "fd", TypeSize: 4}},
@@ -17831,4 +17831,4 @@ var consts_arm64 = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_arm64 = "897bf7d7933f4d1e031f2c1edc6b911c0e6d2f3d"
+const revision_arm64 = "da2e426acf7b54f32af3dab8f6f967d5da8109dc"
diff --git a/sys/linux/ppc64le.go b/sys/linux/ppc64le.go
index c570fbbd6..fe44a7b4e 100644
--- a/sys/linux/ppc64le.go
+++ b/sys/linux/ppc64le.go
@@ -204,7 +204,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 4}}, Val: 1886661253},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "flags", TypeSize: 4}}, Kind: 2, RangeEnd: 1},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "length", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parnt", TypeSize: 8}}, Kind: 2, RangeEnd: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "parent_offset", TypeSize: 8}}, Kind: 2, RangeEnd: 64},
 	}}},
@@ -311,8 +311,8 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_transaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 16}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_pid", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sender_euid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, ByteSize: 1, Buf: "buffer"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, ByteSize: 1, Buf: "offsets"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "data_size", TypeSize: 8}}, BitSize: 8, Buf: "buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "offsets_size", TypeSize: 8}}, BitSize: 8, Buf: "offsets"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_object"}}, Kind: 1, RangeEnd: 3}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "offsets", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "binder_buffer_offsets", TypeSize: 8}}, Vals: []uint64{0, 24, 32, 40, 48, 56, 64, 72}}}},
 	}}},
@@ -340,10 +340,10 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "binder_cmd_dead_binder_done"}, FldName: "dead_binder_done"},
 	}}},
 	{Key: StructKey{Name: "binder_write_read"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "binder_write_read", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, ByteSize: 1, Buf: "write_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "write_size", TypeSize: 8}}, BitSize: 8, Buf: "write_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "write_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "write_buffer", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "binder_write_cmd"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, ByteSize: 1, Buf: "read_buffer"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "read_size", TypeSize: 8}}, BitSize: 8, Buf: "read_buffer"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "read_consumed", TypeSize: 8}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "read_buffer", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array"}}},
 	}}},
@@ -548,7 +548,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "bpf_prog"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "bpf_prog", TypeSize: 72}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bpf_prog_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, ByteSize: 8, Buf: "insns"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "ninsn", TypeSize: 4}}, BitSize: 64, Buf: "insns"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "insns", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "bpf_instructions"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr64", FldName: "license", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "string"}, Kind: 2, SubKind: "bpf_licenses", Values: []string{"GPL\x00", "syzkaller\x00"}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "loglev", TypeSize: 4}}},
@@ -748,7 +748,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	{Key: StructKey{Name: "dccp_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "dccp_header", TypeSize: 16}, Fields: []Type{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "src_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "dst_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "offset", TypeSize: 1}}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "cscov", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, Val: 1},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ccval", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "parent", Protocol: 33},
@@ -1780,7 +1780,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "seq_num", TypeSize: 2}, BigEndian: true}},
 	}}},
 	{Key: StructKey{Name: "icmp_ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "icmp_ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2177,7 +2177,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "input_mask"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "input_mask", TypeSize: 16}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "input_mask_type", FldName: "type", TypeSize: 4}}, Vals: []uint64{0, 1, 2, 3, 4, 5, 17, 18, 21}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, ByteSize: 1, Buf: "ptr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "size", TypeSize: 4}}, BitSize: 8, Buf: "ptr"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "ptr", TypeSize: 8}, Type: &BufferType{}},
 	}}},
 	{Key: StructKey{Name: "io_cmap"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "io_cmap", TypeSize: 48}, Fields: []Type{
@@ -2223,11 +2223,11 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_nl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "netlink_msg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_nl_xfrm"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_nl_xfrm", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &UnionType{Key: StructKey{Name: "netlink_msg_xfrm"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}}},
 	{Key: StructKey{Name: "iovec_out"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_out", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "buffer", FldName: "addr", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{ArgDir: 1}}},
@@ -2235,7 +2235,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "iovec_sadb_msg"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "iovec_sadb_msg", TypeSize: 16}, Fields: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addr", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "sadb_msg"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "addr"},
 	}}},
 	{Key: StructKey{Name: "ip_mreq"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ip_mreq", TypeSize: 8}, Fields: []Type{
 		&UnionType{Key: StructKey{Name: "ipv4_addr"}, FldName: "imr_multiaddr"},
@@ -2339,7 +2339,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "a3", TypeSize: 1, ArgDir: 2}}, Val: 187},
 	}}},
 	{Key: StructKey{Name: "ipv4_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv4_header"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "ihl", TypeSize: 1}, BitfieldLen: 4, BitfieldMdl: true}, BitSize: 32, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "version", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, Val: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ecn", TypeSize: 1}, BitfieldLen: 2, BitfieldMdl: true}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "dscp", TypeSize: 1}, BitfieldOff: 2, BitfieldLen: 6}},
@@ -2578,7 +2578,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_dstopts_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_dstopts_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}}},
@@ -2599,7 +2599,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_hopots_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_hopots_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "options"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "options"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "pad", TypeSize: 6}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 6, RangeEnd: 6},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "options"}, Type: &UnionType{Key: StructKey{Name: "ipv6_tlv_option"}}},
 	}, AlignAttr: 8}},
@@ -2634,7 +2634,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_routing_ext_header"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_routing_ext_header"}, Fields: []Type{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_types", FldName: "next_header", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 6, 8, 12, 17, 22, 29, 33, 41, 46, 47, 50, 51, 92, 94, 98, 103, 108, 132, 136, 137, 255, 0, 43, 44, 58, 59, 60, 135, 0, 43, 44, 47, 50, 51, 58, 59, 60, 135}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, ByteSize: 8, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "length", TypeSize: 1}}, BitSize: 64, Buf: "data"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipv6_routing_types", FldName: "routing_type", TypeSize: 1}}, Vals: []uint64{1, 0, 2}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "segments_left", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 4}}},
@@ -2642,12 +2642,12 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso"}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 7},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "payload"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "payload"},
 		&StructType{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, FldName: "payload"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_calipso_payload"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_calipso_payload"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32be", FldName: "domain", TypeSize: 4}, BigEndian: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, ByteSize: 4, Buf: "compartment_bitmap"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "compartment_length", TypeSize: 1}}, BitSize: 32, Buf: "compartment_bitmap"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sensitivity_level", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "checksum", TypeSize: 2}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "compartment_bitmap"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", TypeSize: 8}}}},
@@ -2664,7 +2664,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_hao"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_hao", TypeSize: 18}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "type", TypeSize: 1}}, Val: 201},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, ByteSize: 1, Buf: "addr"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 1}}, BitSize: 8, Buf: "addr"},
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "addr"},
 	}}},
 	{Key: StructKey{Name: "ipv6_tlv_jumbo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "ipv6_tlv_jumbo", TypeSize: 6}, Fields: []Type{
@@ -3497,7 +3497,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_alg"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3508,7 +3508,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_nl"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3519,7 +3519,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3541,7 +3541,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3552,7 +3552,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "cmsghdr_un"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3587,7 +3587,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "vec", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "vlen", TypeSize: 8}}, Buf: "vec"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "ctrl", TypeSize: 8, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, ByteSize: 1, Buf: "ctrl"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "ctrllen", TypeSize: 8}}, BitSize: 8, Buf: "ctrl"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "f", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3702,7 +3702,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_out"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 8}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 8, IsOptional: true}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, BitSize: 8, Buf: "msg_control"},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "msg_flags", TypeSize: 4}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -3766,7 +3766,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "nivcsw", TypeSize: 8, ArgDir: 1}}},
 	}}},
 	{Key: StructKey{Name: "sadb_address"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_address"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_address_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{5, 6, 7, 23}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_address_proto", TypeSize: 1}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_prefixlens", FldName: "sadb_address_prefixlen", TypeSize: 1}}, Vals: []uint64{32, 128}},
@@ -3797,21 +3797,21 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "ipv6_addr"}, FldName: "in6"},
 	}}},
 	{Key: StructKey{Name: "sadb_ident"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_ident", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_ident_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{10, 11}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_ident_type", TypeSize: 2}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_ident_reserved", TypeSize: 2}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_ident_id", TypeSize: 8}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_key"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_key"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_key_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{8, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "sadb_key_bits", TypeSize: 2}}, Buf: "key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "sadb_key_bits", TypeSize: 2}}, BitSize: 1, Buf: "key"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_key_reserved", TypeSize: 2}}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "key"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_lifetime"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_lifetime", TypeSize: 32}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_lifetime_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{2, 3, 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "sadb_lifetime_allocations", TypeSize: 4}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int64", FldName: "sadb_lifetime_bytes", TypeSize: 8}}},
@@ -3823,14 +3823,14 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_type", TypeSize: 1}}, Kind: 2, RangeEnd: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_msg_errno", TypeSize: 1}}},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_satype", FldName: "sadb_msg_satype", TypeSize: 1}}, Vals: []uint64{0, 2, 3, 5, 6, 7, 8, 9, 9}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_msg_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_msg_reserved", TypeSize: 2}}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_seq", TypeSize: 4}}, ValuesStart: 7388453, ValuesPerProc: 8},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_msg_pid", TypeSize: 4}}, ValuesStart: 635427835, ValuesPerProc: 4},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ext_headers"}, Type: &UnionType{Key: StructKey{Name: "sadb_ext_hdr"}}},
 	}}},
 	{Key: StructKey{Name: "sadb_sa"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_sa", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 1},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_sa_spi", TypeSize: 4}, BigEndian: true}, ValuesStart: 1234, ValuesPerProc: 4},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_sa_replay", TypeSize: 1}}},
@@ -3840,14 +3840,14 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_sa_flags", FldName: "sadb_sa_flags", TypeSize: 4}}, Vals: []uint64{1, 536870912, 1073741824, 2147483648}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_spirange"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_spirange", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 16},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_min", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_spirange_max", TypeSize: 4}}, ValuesStart: 1234, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_spirange_reserved", TypeSize: 4}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_filter"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_filter", TypeSize: 40}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 26},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_saddr"},
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "sadb_x_filter_daddr"},
@@ -3856,7 +3856,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_filter_addr_len", FldName: "sadb_x_filter_dplen", TypeSize: 1}}, Vals: []uint64{4, 16}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_ipsecrequest"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_ipsecrequest", TypeSize: 48}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_x_ipsecrequest_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_proto", FldName: "sadb_x_ipsecrequest_proto", TypeSize: 2}}, Vals: []uint64{51, 50, 108, 60, 43, 255}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_mode", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ipsecrequest_level", TypeSize: 1}}},
@@ -3867,26 +3867,26 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&UnionType{Key: StructKey{Name: "sadb_filter_addr"}, FldName: "daddr"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_kmaddress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_kmaddress"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 25},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_kmaddress_reserved", TypeSize: 4}}},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "src"},
 		&UnionType{Key: StructKey{Name: "sadb_address_addr"}, FldName: "dst"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_port"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_port", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sadb_nat_port_type", FldName: "sadb_exttype", TypeSize: 2}}, Vals: []uint64{21, 22}},
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_nat_t_port_port", TypeSize: 2}, BigEndian: true}, ValuesStart: 20000, ValuesPerProc: 4},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_nat_t_port_reserved", TypeSize: 2}}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_nat_t_type"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_nat_t_type", TypeSize: 8}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 20},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_nat_t_type_type", TypeSize: 1}}},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "sadb_x_nat_t_type_reserved", TypeSize: 3}, Type: &ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", TypeSize: 1}}}, Kind: 1, RangeBegin: 3, RangeEnd: 3},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_policy"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_policy", TypeSize: 64}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 18},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16", FldName: "sadb_x_policy_type", TypeSize: 2}}, Kind: 2, RangeEnd: 4},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "ipsec_policy_dir", FldName: "sadb_x_policy_dir", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 3, 4}},
@@ -3896,7 +3896,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&StructType{Key: StructKey{Name: "sadb_x_ipsecrequest"}, FldName: "policy"},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sa2"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sa2", TypeSize: 16}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 19},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_sa2_mode", TypeSize: 1}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_x_sa2_reserved1", TypeSize: 1}}},
@@ -3905,11 +3905,11 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&ProcType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "proc", FldName: "sadb_x_sa2_reqid", TypeSize: 4}}, ValuesStart: 13567, ValuesPerProc: 8},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sadb_x_sec_ctx"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sadb_x_sec_ctx"}, Fields: []Type{
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, ByteSize: 8, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize8", FldName: "sadb_len", TypeSize: 2}}, BitSize: 64, Buf: "parent"},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "sadb_exttype", TypeSize: 2}}, Val: 24},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_alg", TypeSize: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "sadb_x_ctx_doi", TypeSize: 1}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, ByteSize: 1, Buf: "ctx"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "sadb_x_ctx_len", TypeSize: 2}}, BitSize: 8, Buf: "ctx"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "ctx"}},
 	}, AlignAttr: 8}},
 	{Key: StructKey{Name: "sched_attr"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sched_attr", TypeSize: 48}, Fields: []Type{
@@ -4049,7 +4049,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "sctp_getaddrs_old", Dir: 2}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_getaddrs_old", TypeSize: 16, ArgDir: 2}, Fields: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "assoc_id", FldName: "assoc_id", TypeSize: 4, ArgDir: 2}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, ByteSize: 1, Buf: "addrs"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "addr_num", TypeSize: 4, ArgDir: 2}}, BitSize: 8, Buf: "addrs"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "addrs", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
 	}}},
 	{Key: StructKey{Name: "sctp_hmacalgo"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sctp_hmacalgo"}, Fields: []Type{
@@ -4266,7 +4266,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_iov", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "iovec_in"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "msg_iovlen", TypeSize: 8}}, Buf: "msg_iov"},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "msg_control", TypeSize: 8, IsOptional: true}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "cmsghdr"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, ByteSize: 1, Buf: "msg_control"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "msg_controllen", TypeSize: 8}}, BitSize: 8, Buf: "msg_control"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "send_flags", FldName: "msg_flags", TypeSize: 4}}, Vals: []uint64{2048, 4, 64, 128, 32768, 16384, 1, 16, 262144, 536870912, 67108864}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 	}}},
@@ -4383,7 +4383,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "snd_ctl_tlv"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_ctl_tlv"}, Fields: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "numid", TypeSize: 4}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, ByteSize: 1, Buf: "tlv"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 4}}, BitSize: 8, Buf: "tlv"},
 		&ArrayType{TypeCommon: TypeCommon{TypeName: "array", FldName: "tlv"}, Type: &IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", TypeSize: 4}}}},
 	}}},
 	{Key: StructKey{Name: "snd_pcm_info"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "snd_pcm_info", TypeSize: 288}, Fields: []Type{
@@ -5334,7 +5334,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "tcp_seq_num", FldName: "ack_num", TypeSize: 4}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int8", FldName: "ns", TypeSize: 1}, BitfieldLen: 1, BitfieldMdl: true}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "reserved", TypeSize: 1}, BitfieldOff: 1, BitfieldLen: 3, BitfieldMdl: true}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, ByteSize: 4, Buf: "parent"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize4", FldName: "data_off", TypeSize: 1}, BitfieldOff: 4, BitfieldLen: 4}, BitSize: 32, Buf: "parent"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "tcp_flags", FldName: "flags", TypeSize: 1}}, Vals: []uint64{0, 1, 2, 4, 8, 16, 32, 64, 128, 194}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int16be", FldName: "window_size", TypeSize: 2}, BigEndian: true}},
 		&CsumType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "csum", FldName: "csum", TypeSize: 2}, BigEndian: true}, Kind: 1, Buf: "tcp_packet", Protocol: 6},
@@ -5776,29 +5776,29 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_aead"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_aead"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_aead_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_auth"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_auth"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "xfrm_algo_truncbits", FldName: "alg_icv_len", TypeSize: 4}}, Vals: []uint64{0, 64, 96, 128, 160, 192, 256, 384, 512}},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_blkcipher"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_blkcipher"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_blkcipher_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_compress"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_compress"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_compress_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_algo_hash"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_algo_hash"}, Fields: []Type{
 		&StructType{Key: StructKey{Name: "alg_hash_name"}, FldName: "alg_name"},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "alg_key_len", TypeSize: 4}}, ByteSize: 1, Buf: "alg_key"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bitsize", FldName: "alg_key_len", TypeSize: 4}}, BitSize: 1, Buf: "alg_key"},
 		&BufferType{TypeCommon: TypeCommon{TypeName: "array", FldName: "alg_key"}},
 	}}},
 	{Key: StructKey{Name: "xfrm_allocspi"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "xfrm_allocspi"}, Fields: []Type{
@@ -12904,28 +12904,28 @@ var syscalls_ppc64le = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1197, NR: 339, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1198, NR: 339, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1199, NR: 339, Name: "setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1200, NR: 339, Name: "setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp6", FldName: "fd", TypeSize: 4}},
@@ -13198,28 +13198,28 @@ var syscalls_ppc64le = []*Syscall{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 100},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1239, NR: 339, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_REM", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 101},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1240, NR: 339, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 110},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1241, NR: 339, Name: "setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "level", TypeSize: 8}}, Val: 132},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "opt", TypeSize: 8}}, Val: 107},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "val", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &UnionType{Key: StructKey{Name: "sockaddr_sctp"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "val"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "val"},
 	}},
 	{ID: 1242, NR: 339, Name: "setsockopt$inet_sctp_SCTP_STREAM_SCHEDULER", CallName: "setsockopt", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "sock_sctp", FldName: "fd", TypeSize: 4}},
@@ -14271,7 +14271,7 @@ var syscalls_ppc64le = []*Syscall{
 	{ID: 1432, NR: 4, Name: "write$evdev", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_evdev", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "input_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1433, NR: 4, Name: "write$eventfd", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_event", FldName: "fd", TypeSize: 4}},
@@ -14281,12 +14281,12 @@ var syscalls_ppc64le = []*Syscall{
 	{ID: 1434, NR: 4, Name: "write$fuse", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_fuse", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "arg", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "fuse_out"}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "arg"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "arg"},
 	}},
 	{ID: 1435, NR: 4, Name: "write$sndseq", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_sndseq", FldName: "fd", TypeSize: 4}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "data", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array"}, Type: &StructType{Key: StructKey{Name: "snd_seq_event"}}}},
-		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, ByteSize: 1, Buf: "data"},
+		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "bytesize", FldName: "len", TypeSize: 8}}, BitSize: 8, Buf: "data"},
 	}},
 	{ID: 1436, NR: 4, Name: "write$tun", CallName: "write", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "fd_tun", FldName: "fd", TypeSize: 4}},
@@ -17512,4 +17512,4 @@ var consts_ppc64le = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_ppc64le = "efe1985339c5b36fc5eea7e64f0f675372eeb0ae"
+const revision_ppc64le = "80fceb3ff839c42150363f99649c2cd07e0ab5fd"
diff --git a/sys/linux/socket_key.txt b/sys/linux/socket_key.txt
index cdd7a5c7d..3afeca886 100644
--- a/sys/linux/socket_key.txt
+++ b/sys/linux/socket_key.txt
@@ -98,8 +98,7 @@ sadb_address_addr [
 sadb_key {
 	sadb_len		bytesize8[parent, int16]
 	sadb_exttype		flags[sadb_key_type, int16]
-# TODO: length in bits	
-	sadb_key_bits		len[key, int16]
+	sadb_key_bits		bitsize[key, int16]
 	sadb_key_reserved	const[0, int16]
 	key			array[int8]
 } [packed, align_8]
diff --git a/sys/linux/socket_netlink_xfrm.txt b/sys/linux/socket_netlink_xfrm.txt
index 841041d88..8e232cce5 100644
--- a/sys/linux/socket_netlink_xfrm.txt
+++ b/sys/linux/socket_netlink_xfrm.txt
@@ -586,37 +586,32 @@ xfrm_stats {
 
 xfrm_algo_hash {
 	alg_name	alg_hash_name
-# TODO: alg_key_len is actually in _bits_.
-	alg_key_len	bytesize[alg_key, int32]
+	alg_key_len	bitsize[alg_key, int32]
 	alg_key		array[int8]
 }
 
 xfrm_algo_blkcipher {
 	alg_name	alg_blkcipher_name
-# TODO: alg_key_len is actually in _bits_.
-	alg_key_len	bytesize[alg_key, int32]
+	alg_key_len	bitsize[alg_key, int32]
 	alg_key		array[int8]
 }
 
 xfrm_algo_compress {
 	alg_name	alg_compress_name
-# TODO: alg_key_len is actually in _bits_.
-	alg_key_len	bytesize[alg_key, int32]
+	alg_key_len	bitsize[alg_key, int32]
 	alg_key		array[int8]
 }
 
 xfrm_algo_auth {
 	alg_name	alg_hash_name
-# TODO: alg_key_len is actually in _bits_.
-	alg_key_len	bytesize[alg_key, int32]
+	alg_key_len	bitsize[alg_key, int32]
 	alg_icv_len	flags[xfrm_algo_truncbits, int32]
 	alg_key		array[int8]
 }
 
 xfrm_algo_aead {
 	alg_name	alg_aead_name
-# TODO: alg_key_len is actually in _bits_.
-	alg_key_len	bytesize[alg_key, int32]
+	alg_key_len	bitsize[alg_key, int32]
 	alg_icv_len	flags[xfrm_algo_truncbits, int32]
 	alg_key		array[int8]
 }