I use make 2>err_log ,the conten of this file is as below:
wk: cmd. line:2: (FILENAME=/usr/local/blackfin/buildroot/linux/linux-kernel/include/asm-generic/errno.h FNR=113) fatal: cannot open file `/usr/local/blackfin/buildroot/linux/linux-kernel/arch/blackfin/include/generated/asm/*errno*.h' for reading (No such file or directory)
make: *** [/usr/local/blackfin/buildroot/output/build/strace-10736/.stamp_configured] Error 2