Linux 1.1的出错编号个人注释

#ifndef _ERRNO_H#define _ERRNO_H/* * ok, as I hadn"t got any other source of information about * possible error numbers, I was forced to use the same numbers * as minix. * Hopefully these are posix or something. I wouldn"t know （and posix * isn"t telling me - they want $$$ for their f***ing standard）. * * We don"t use the _SIGN cludge of minix, so kernel returns must * see to the sign by themselves. * * NOTE！ Remember to change strerror（） if you change this file！ */extern int errno; //这个定义应该在lib/error.c文件里面,其实就是错误编号,我估计返回的就是一下的一些值,作为全局变量是为了整个系统可以查看错误编号#define ERROR 99 //一般错误#define EPERM 1 //操作没有许可#define ENOENT 2 //文件或目录不存在#define ESRCH 3 //指定的进程不存在#define EINTR 4 //中断的函数调用#define EIO 5 //输入/输出错误#define ENXIO 6 //指定设备或地址不存在#define E2BIG 7 //参数列表太长#define ENOEXEC 8 //执行程序格式错误#define EBADF 9 //文件句柄（描述符）错误#define ECHILD 10 //子进程不存在#define EAGAIN 11 //资源暂时不可用#define ENOMEM 12 //内存不足#define EACCES 13 //没有许可权限#define EFAULT 14 //地址错误#define ENOTBLK 15 //不是块设备文件#define EBUSY 16 //资源正忙#define EEXIST 17 //文件已存在#define EXDEV 18 //非法连接#define ENODEV 19 //设备不存在#define ENOTDIR 20 //不是目录文件#define EISDIR 21 //是目录文件#define EINVAL 22 //参数无效#define ENFILE 23 //系统打开文件数太多#define EMFILE 24 //打开文件数太多#define ENOTTY 25 //不恰当的IO控制操作（没有tty终端）#define ETXTBSY 26 //不再使用#define EFBIG 27 //文件太大#define ENOSPC 28 //设备已满（设备已经没有空间）#define ESPIPE 29 //无效的文件指针重定位#define EROFS 30 //文件系统只读#define EMLINK 31 //链接太多#define EPIPE 32 //管道错#define EDOM 33 //域（domain）出错#define ERANGE 34 //结果太大#define EDEADLK 35 //避免资源死锁#define ENAMETOOLONG 36 //文件名太长#define ENOLCK 37 //没有锁定可用#define ENOSYS 38 //功能还没有实现#define ENOTEMPTY 39 //目录不空#endif