1、刚导入的mips工具链，由于是32bit的，需要安装缺失的32bit工具链

解决strace找不到问题

sudo apt install strace

解决缺乏32位libc的问题

apt-get install libc6-i386

解决as:error while loading shared libraries: libz.so.1: cannot open shared object file: No such file or directory 问题，缺乏32位系统的libz库，需要安装

sudo apt-get install lib32z1

2、WSL系统与linux虚拟机区别

解决Value too large for defined data type问题

/mnt/c/!code/longson$ /opt/gcc-4.3-ls232/bin/mipsel-linux-gcc simple.c -o simple
cc1: error: simple.c: Value too large for defined data type

原因是windows跟linux的文件系统有区别，这个老旧的mips编译器无法识别。将c文件拷到WSL系统的linux目录里即可正常编译：

$ /opt/gcc-4.3-ls232/bin/mipsel-linux-gcc simple.c -o simple
$ echo $?
0

编译内核

sudo apt install libncurses-dev bison flex libssl-dev libelf-dev

将配置文件拷贝的linux源码根目录下

要点，记得重命名为.config

cp ls1c_defconfig ~/open-linux/.config

编译

# 直接在当前目录下编译即可
~/open-linux$ make

结果如下：

  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/mounts.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
  KSYM    .tmp_kallsyms1.S
  AS      .tmp_kallsyms1.o
  LD      .tmp_vmlinux2
  KSYM    .tmp_kallsyms2.S
  AS      .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  Building modules, stage 2.
  MODPOST 1 modules
  CC      drivers/scsi/scsi_wait_scan.mod.o
  AS      arch/mips/boot/compressed/head.o
  CC      arch/mips/boot/compressed/decompress.o
  CC      arch/mips/boot/compressed/dbg.o
  CC      arch/mips/boot/compressed/dummy.o
  OBJCOPY arch/mips/boot/compressed/vmlinux.bin
  HOSTCC  arch/mips/boot/compressed/calc_vmlinuz_load_addr
  LD [M]  drivers/scsi/scsi_wait_scan.ko
  GZIP    arch/mips/boot/compressed/vmlinux.bin.z
  OBJCOPY arch/mips/boot/compressed/piggy.o
  LD      vmlinuz
  STRIP   vmlinuz
~/open-linux$ echo $?
0
~/open-linux$