使用 man 3 end 可以查看下列 ld linker 生成的特殊符号在C语言的用法，还有示例代码噢！！！
etext： This is the first address past the end of the text segment (the program code).
edata： This is the first address past the end of the initialized data segment.
end： This is the first address past the end of the uninitialized data segment (also known as the BSS segment).
标签：end,past,address,man,segment,first From： https://www.cnblogs.com/yinhuachen/p/16898145.html