make&&gcc/g++ 生成 map file

map file 对于嵌入式开发是非常有用的，尤其是当你开发的module引起了 kernel panic 的时候。

仅写作Mark用

make:

$vim makefile

(add  "LDFLAGS=-Map=your_file.map" to your *makefile* or just add it to your make command every time, it ups to you.)

$find / -name "your_file.map"

(Usually, It's in your current directory, but if you use a "make -C " in your makefile, it will be there.)

gcc/g++

$gcc -o your_file.c -Wl,-Map=your_file.map

(It definitely should be in your current dirctory).