build error for bcm5356

[Mori Hiroki]

Hi
I build for bcm5356 target on CURRENT. I have error this.
linking kernelkern_mib.o: In function `sysctl_build_id':kern_mib.c:(.text+0x2b0): undefined reference to `__build_id_start'kern_mib.c:(.text+0x2b4): undefined reference to `__build_id_start'kern_mib.c:(.text+0x2b8): undefined reference to `__build_id_end'kern_mib.c:(.text+0x2bc): undefined reference to `__build_id_end'kern_mib.c:(.text+0x318): undefined reference to `__build_id_start'kern_mib.c:(.text+0x31c): undefined reference to `__build_id_start'*** Error code 1
If you have advice, please let me know.
Thanks
Hiroki Mori