uboot 编译 input in flex scanner failed

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

  1. 工具链测试

  2. 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

你这是Windows下编译吗?
你先用我们提供的虚拟机Ubuntu学习吧,把流程走一遍,基本入门了,再来自己折腾别的环境。