Hello, On Sat, Jul 10, 2010 at 02:01:19PM +0800, CoffBeta wrote: > CHK include/linux/compile.h > GEN .version > CHK include/linux/compile.h > UPD include/linux/compile.h > CC init/version.o > LD init/built-in.o > LD .tmp_vmlinux1 > init/built-in.o: In function `do_one_initcall': > /home/ymcheng/linux-2.6.27/init/main.c:704: undefined reference to > `__gnu_mcount_nc' > init/built-in.o: In function `init_post': > /home/ymcheng/linux-2.6.27/init/main.c:796: undefined reference to > `__gnu_mcount_nc' > init/built-in.o: In function `name_to_dev_t': > /home/ymcheng/linux-2.6.27/init/do_mounts.c:76: undefined reference to > `__gnu_mcount_nc' > init/built-in.o: In function `set_reset_devices': > /home/ymcheng/linux-2.6.27/init/main.c:183: undefined reference to > `__gnu_mcount_nc' > init/built-in.o: In function `debug_kernel': > /home/ymcheng/linux-2.6.27/init/main.c:234: undefined reference to > `__gnu_mcount_nc' > init/built-in.o:/home/ymcheng/linux-2.6.27/init/main.c:240: more undefined > references to `__gnu_mcount_nc' follow > make: *** [.tmp_vmlinux1] 错误 1 > > why????how can I do it? thanks Your toolchain is too new for a kernel that old. You need a kernel having 181f817eaaca4c1f8a9c265d339d2b96de8b245d. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html