et/libnet.a(net.o)(.text+0x1cc): In function `ArpRequest':
/home/uboot/u-boot-2009.08/net/net.c:250: undefined reference to `eth_send'
net/libnet.a(net.o)(.text+0x29c): In function `NetStartAgain':
/home/uboot/u-boot-2009.08/net/net.c:568: undefined reference to `eth_halt'
net/libnet.a(net.o)(.text+0x36c): In function `NetSendPacket':
/home/uboot/u-boot-2009.08/net/net.c:623: undefined reference to `eth_send'
net/libnet.a(net.o)(.text+0x630): In function `NetSendUDPPacket':
/home/uboot/u-boot-2009.08/net/net.c:668: undefined reference to `eth_send'
net/libnet.a(net.o)(.text+0x7f4): In function `PingTimeout':
/home/uboot/u-boot-2009.08/net/net.c:732: undefined reference to `eth_halt'
net/libnet.a(net.o)(.text+0xb70): In function `NetReceive':
/home/uboot/u-boot-2009.08/net/net.c:1295: undefined reference to `eth_send'
net/libnet.a(net.o)(.text+0xdfc):/home/uboot/u-boot-2009.08/net/net.c:1420: undefined reference to `eth_send'
net/libnet.a(net.o)(.text+0x11ac): In function `NetLoop':
/home/uboot/u-boot-2009.08/net/net.c:342: undefined reference to `eth_halt'
net/libnet.a(net.o)(.text+0x11b4):/home/uboot/u-boot-2009.08/net/net.c:346: undefined reference to `eth_init'
net/libnet.a(net.o)(.text+0x12e4):/home/uboot/u-boot-2009.08/net/net.c:370: undefined reference to `eth_halt'
我编译uboot的时候出现了这样的错误，但是这些函数都在net.h中定义好了得。为什么还说没有定义？
我上网查了，说是链接库没有连接上，但是不知道怎么改。
有没有人知道，小弟非常感谢
