先看下面一个MakeFile的例子
cache: test.o happyhut_list.o gcc -g test.o happyhut_list.o -o cache -lpthread happyhut_list.o: happyhut_list.c happyhut_list.h plus.h gcc -g -c happyhut_list.c -o happyhut_list.o test.o: test.c plus.h raid.h gcc -g -c test.c -o test.o clean: rm -rf *.o cache
编译的过程从下往上执行。首先执行clean部分，rm -f表示force，强制执行，-r表示递归删除，即目录和子目录
然后生成test.o文件
test.o:冒号后的东西表示生成test.o所需要的东西。
以此往上生成。最后生成可执行文件cache。
gcc -g 是为了gdb调试，-c 表示只编译，不链接。
下面说说源代码变成可执行代码在内存中执行的三个步骤：
编译、链接、载入
1.编译：将原代码编译成若干个目标模块。
2.链接：将编译后形成的目标模块和库链接在一起，形成一个完整的载入模块。
3.载入：将载入模块载入内存
具体可以看
http://blog.csdn.net/monkey_d_meng/article/details/5651649
2023年1月07日 20:26
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