contiki elfloader symbol not found

root@ubuntu:/home/user/contiki/tools# ./tunslip -s /dev/ttyUSB0 -B 115200 172.16.22.0 255.255.255.0
slip started on ``/dev/ttyUSB0''
opened device ``/dev/tun0''
ifconfig tun0 inet `hostname` up
route add -net 172.16.22.0 netmask 255.255.255.0 dev tun0
ifconfig tun0

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          inet addr:127.0.1.1  P-t-P:127.0.1.1  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

22.0: making myself the IP network gateway.

IPv4 address of the gateway: 172.16.22.0

route add -net 172.16.22.0 netmask 255.255.255.255 dev tun0
In recv_tcpthread
Successfully got the header
address and code length: 0 , 784
address and code length: 24 , 784
address and code length: 48 , 784
address and code length: 72 , 784
address and code length: 96 , 784
address and code length: 120 , 784
address and code length: 144 , 784
address and code length: 168 , 784
address and code length: 192 , 784
address and code length: 216 , 784
address and code length: 240 , 784
address and code length: 264 , 784
address and code length: 288 , 784
address and code length: 312 , 784
address and code length: 336 , 784
address and code length: 360 , 784
address and code length: 384 , 784
address and code length: 408 , 784
address and code length: 432 , 784
address and code length: 456 , 784
address and code length: 480 , 784
address and code length: 504 , 784
address and code length: 528 , 784
address and code length: 552 , 784
address and code length: 576 , 784
address and code length: 600 , 784
address and code length: 624 , 784
address and code length: 648 , 784
address and code length: 672 , 784
address and code length: 696 , 784
address and code length: 720 , 784
address and code length: 744 , 784
address and code length: 768 , 784
address and code length: 784 , 784
We're in the start program
seek_read: Read len 52 from offset 0
7f 45 4c 46 01 01 01 ffff 00 00 00 00 00 00 00 00 01 00 69 00 01 00 00 00 00 00 00 00 00 00 00 00 ffb4 00 00 00 10 00 00 00 34 00 00 00 00 00 28 00 09 00 06 00
seek_read: Read len 40 from offset 180
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Section header: size 40 num 9
seek_read: Read len 40 from offset 420
11 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 7c 00 00 00 36 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
Strtable offset 124
seek_read: Read len 40 from offset 180
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
seek_read: Read len 12 from offset 124
00 2e 73 79 6d 74 61 62 00 2e 73 74
Section shdrptr 0xb4, 124 + 0 type 0
seek_read: Read len 40 from offset 220
20 00 00 00 01 00 00 00 06 00 00 00 00 00 00 00 34 00 00 00 3e 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00
seek_read: Read len 12 from offset 156
2e 74 65 78 74 00 2e 72 65 6c 61 2e
Section shdrptr 0xdc, 124 + 32 type 0
seek_read: Read len 40 from offset 260
1b 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 ffc8 02 00 00 30 00 00 00 07 00 00 00 01 00 00 00 04 00 00 00 0c 00 00 00
seek_read: Read len 12 from offset 151
2e 72 65 6c 61 2e 74 65 78 74 00 2e
Section shdrptr 0x104, 124 + 27 type 0
seek_read: Read len 40 from offset 300
2b 00 00 00 01 00 00 00 03 00 00 00 00 00 00 00 72 00 00 00 0a 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00
seek_read: Read len 12 from offset 167
2e 64 61 74 61 00 2e 62 73 73 00 00
Section shdrptr 0x12c, 124 + 43 type 0
seek_read: Read len 40 from offset 340
26 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 fff8 02 00 00 18 00 00 00 07 00 00 00 03 00 00 00 04 00 00 00 0c 00 00 00
seek_read: Read len 12 from offset 162
2e 72 65 6c 61 2e 64 61 74 61 00 2e
Section shdrptr 0x154, 124 + 38 type 0
seek_read: Read len 40 from offset 380
31 00 00 00 08 00 00 00 03 00 00 00 00 00 00 00 7c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
seek_read: Read len 12 from offset 173
2e 62 73 73 00 00 00 00 00 00 00 00
Section shdrptr 0x17c, 124 + 49 type 0
seek_read: Read len 40 from offset 420
11 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 7c 00 00 00 36 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
seek_read: Read len 12 from offset 141
2e 73 68 73 74 72 74 61 62 00 2e 72
Section shdrptr 0x1a4, 124 + 17 type 0
strtab
seek_read: Read len 40 from offset 460
01 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 1c 02 00 00 ff80 00 00 00 08 00 00 00 04 00 00 00 04 00 00 00 10 00 00 00
seek_read: Read len 12 from offset 125
2e 73 79 6d 74 61 62 00 2e 73 74 72
Section shdrptr 0x1cc, 124 + 1 type 0
symtab
seek_read: Read len 40 from offset 500
09 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 ff9c 02 00 00 29 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
seek_read: Read len 12 from offset 133
2e 73 74 72 74 61 62 00 2e 73 68 73
Section shdrptr 0x1f4, 124 + 9 type 0
strtab
before allocate ram
before allocate rom
bss base address: bss.address = 0x00002550
data base address: data.address = 0x00002550
text base address: text.address = 0x00002150
rodata base address: rodata.address = 0x0000218e
elfloader: relocate text
seek_read: Read len 12 from offset 712
18 00 00 00 05 01 00 00 00 00 00 00
seek_read: Read len 16 from offset 556
00 00 00 00 00 00 00 00 00 00 00 00 03 00 01 00
seek_read: Read len 12 from offset 724
1c 00 00 00 05 04 00 00 00 00 00 00
seek_read: Read len 16 from offset 604
01 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00
seek_read: Read len 30 from offset 669
70 75 74 73 00 6c 65 64 73 5f 6f 6e 00 73 69 6d 70 6c 65 00 61 75 74 6f 73 74 61 72 74 5f
name: puts
name not found in global: puts
seek_read: Read len 16 from offset 540
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Name :: (null) Symbol:(null)
seek_read: Read len 16 from offset 556
00 00 00 00 00 00 00 00 00 00 00 00 03 00 01 00
Name :: (null) Symbol:(null)
seek_read: Read len 16 from offset 572
00 00 00 00 00 00 00 00 00 00 00 00 03 00 03 00
Name :: (null) Symbol:(null)
seek_read: Read len 16 from offset 588
00 00 00 00 00 00 00 00 00 00 00 00 03 00 05 00
Name :: (null) Symbol:(null)
seek_read: Read len 16 from offset 604
01 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00
Name :: _�seek_read: Read len 30 from offset 669
70 75 74 73 00 6c 65 64 73 5f 6f 6e 00 73 69 6d 70 6c 65 00 61 75 74 6f 73 74 61 72 74 5f
its null
found address 0x0
elfloader unknown name: '                          puts'
codeprop: error 5:Symbol not found

elf loader output Symbol not found