hello! can you help me for compiling the linux kernel?

["jack_lu" <jacklu@allplus-cn.com>]

Dear Sir,
　　hello! can you help me for compiling the linux kernel?
　　Linux version is linux-2.6.21.5.
　　CPU:mips
　　Cross-compilation tools is eldk and openwrt file packages.
　　Errors are the followings.
　　init/built-in.o: In function `init':
　　init/main.c:833: undefined reference to `opipmux_gel_init'
　　init/main.c:833: relocation truncated to fit: R_MIPS_26 against `opipmux_gel_init'
　　init/main.c:835: undefined reference to `ip_auto_config'
　　init/main.c:835: relocation truncated to fit: R_MIPS_26 against `ip_auto_config'
　　init/built-in.o: In function `start_kernel':
　　init/main.c:525: undefined reference to `setup_prom_printf'
　　init/main.c:525: relocation truncated to fit: R_MIPS_26 against `setup_prom_printf'
　　init/main.c:527: undefined reference to `prom_printf'
　　init/main.c:527: relocation truncated to fit: R_MIPS_26 against `prom_printf'
　　init/main.c:530: undefined reference to `prom_printf'
　　init/main.c:530: relocation truncated to fit: R_MIPS_26 against `prom_printf'
　　arch/mips/kernel/built-in.o: In function `test_setdata':
　　arch/mips/kernel/syscall.c:461: undefined reference to `set_ipmux_el_tx_buf_data'
　　arch/mips/kernel/syscall.c:461: relocation truncated to fit: R_MIPS_26 against `set_ipmux_el_tx_buf_data'
　　arch/mips/kernel/built-in.o: In function `test_getdata':
　　arch/mips/kernel/syscall.c:453: undefined reference to `get_ipmux_el_rx_buf_data'
　　arch/mips/kernel/syscall.c:453: relocation truncated to fit: R_MIPS_26 against `get_ipmux_el_rx_buf_data'
　　arch/mips/kernel/built-in.o: In function `test_waitinterrupt':
　　arch/mips/kernel/syscall.c:446: undefined reference to `wait_for_host_test_interrupt'
　　arch/mips/kernel/syscall.c:446: relocation truncated to fit: R_MIPS_26 against `wait_for_host_test_interrupt'
　　kernel/built-in.o: In function `free_module':
　　kernel/module.c:1231: undefined reference to `kfree1'
　　kernel/module.c:1231: relocation truncated to fit: R_MIPS_26 against `kfree1'
　　drivers/built-in.o: In function `snapshot_map':
　　drivers/md/dm-snap.c:900: undefined reference to `__cmpdi2'
　　drivers/md/dm-snap.c:900: relocation truncated to fit: R_MIPS_26 against `__cmpdi2'
　　make: *** [.tmp_vmlinux1] Error 1
　　make: *** No rule to make target `../vmlinux', needed by `piggy.lzma'.  Stop.
　　copyed to ../wrt_uImage
　　cp: cannot stat `uImageLzma': No such file or directory
　　ls: cannot access ../wrt_uImage: No such file or directory
　　===============================================================
　　    output files:                           
　　         wrt_uImage : the kernel image      
　　
　　
　　Thanks &Best Wishes,
　　Jack_Lu(鲁红刚)
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