你好，我想咨询下 uboot 编译相关的问题，
开发板 ： IMX6ULL_PRO
开发环境 ：
Linux version 5.15.68.1-microsoft-standard-WSL2 (oe-user@oe-host) (x86_64-msft-linux-gcc (GCC) 9.3.0, GNU ld (GNU Binutils) 2.34.0.20200220) #1 SMP Mon Sep 19 19:14:52 UTC 2022
我按照 “嵌入式Linux应用开发完全手册V5_IMX6ULL_Pro开发板.pdf" 下载了 BSP， 配置了交叉编译工具链，在按照 “6.2.2 编译 u-boot 镜像” 编译时遇到如下问题
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工具链测试
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问题
HOSTCC scripts/basic/fixdep
HOSTCC scripts/kconfig/conf.o
SHIPPED scripts/kconfig/zconf.tab.c
SHIPPED scripts/kconfig/zconf.lex.c
SHIPPED scripts/kconfig/zconf.hash.c
HOSTCC scripts/kconfig/zconf.tab.o
In file included from scripts/kconfig/zconf.tab.c:2468:
scripts/kconfig/confdata.c: In function ‘conf_write’:
scripts/kconfig/confdata.c:771:19: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
771 | sprintf(newname, "%s%s", dirname, basename);
| ^~~~~~
scripts/kconfig/confdata.c:771:19: note: assuming directive output of 7 bytes
In file included from /usr/include/stdio.h:867,
from scripts/kconfig/zconf.tab.c:82:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:36:10: note: ‘__builtin___sprintf_chk’ output 1 or more bytes (assuming 4104) into a destination of size 4097
36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
37 | __bos (__s), __fmt, __va_arg_pack ());
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from scripts/kconfig/zconf.tab.c:2468:
scripts/kconfig/confdata.c:774:20: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
774 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
| ^~~~~~~~~~~~~~~~~
In file included from /usr/include/stdio.h:867,
from scripts/kconfig/zconf.tab.c:82:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:36:10: note: ‘__builtin___sprintf_chk’ output between 13 and 4119 bytes into a destination of size 4097
36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
37 | __bos (__s), __fmt, __va_arg_pack ());
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
HOSTLD scripts/kconfig/conf
input in flex scanner failed
make[1]: *** [scripts/kconfig/Makefile:121: mx6ull_14x14_evk_defconfig] Error 2
make: *** [Makefile:478: mx6ull_14x14_evk_defconfig] Error 2