Problem with MIPS cross toolchain

["Anoop P.A." <Anoop_P.A@pmc-sierra.com>]

Hi,
 
currently I am using binutils 2.15.97 . I though of upgrade binutils
2.18 version( assembler 2.15.97 doesn't have support for mip34k specific
instructions used for SMTC) .Binutils package is compiling without any
problem and I am able to compile my BSP. But while booting I am unable
to detect my embedded rootfs. If I do NFS mount it is booting properly 

( I am using .incbin directive  to add my rootfile system and I am
suspecting problem with incbin directive comes from binutils 2.18 . I am
able use same code properly with 2.15.97 toolchain. anybody else faced
this issue?). 
 
 
One thing I am observing that vmlinux(ELF) built with 2.15.97 contains
39 section while vmlinux built using 2.18 contains 28 sections only.


I am using GCC 3.4.5 and uClibc. 
 
Somebody please help me
 
Thanks
Anoop