/usr/include/asm/errno.h
#define EPERM 1 /* Operation not permitted */操作不允许
  #define ENOENT 2 /* No such file or directory */文件/路径不存在
  #define ESRCH 3 /* No such process */进程不存在
  #define EINTR 4 /* Interrupted system call */中断的系统调用
  #define EIO 5 /* I/O error */I/O错误
  #define ENXIO 6 /* No such device or address */设备/地址不存在
  #define E2BIG 7 /* Arg list too long */参数列表过长
  #define ENOEXEC 8 /* Exec format error */执行格式错误
  #define EBADF 9 /* Bad file number */错误文件编号
  #define ECHILD 10 /* No child processes */子进程不存在
  #define EAGAIN 11 /* Try again */重试
  #define ENOMEM 12 /* Out of memory */内存不足
  #define EACCES 13 /* Permission denied */无权限
  #define EFAULT 14 /* Bad address */地址错误
  record是什么意思中文#define ENOTBLK 15 /* Block device required */需要块设备
  #define EBUSY 16 /* Device or resource busy */设备或资源忙
  #define EEXIST 17 /* File exists */文件已存在
  #define EXDEV 18 /* Cross-device link */跨设备链路
  #define ENODEV 19 /* No such device */设备不存在
  #define ENOTDIR 20 /* Not a directory */路径不存在
  #define EISDIR 21 /* Is a directory */是路径
  #define EINVAL 22 /* Invalid argument */无效参数
  #define ENFILE 23 /* File table overflow */文件表溢出
  #define EMFILE 24 /* Too many open files */打开的文件过多
  #define ENOTTY 25 /* Not a typewriter */非打字机
  #define ETXTBSY 26 /* Text file busy */文本文件忙
  #define EFBIG 27 /* File too large */文件太大
  #define ENOSPC 28 /* No space left on device */设备无空间
  #define ESPIPE 29 /* Illegal seek */非法查询
  #define EROFS 30 /* Read-only file system */只读文件系统
  #define EMLINK 31 /* Too many links */链接太多
  #define EPIPE 32 /* Broken pipe */管道破裂
  #define EDOM 33 /* Math argument out of domain of func */参数超出函数域
  #define ERANGE 34 /* Math result not representable */结果无法表示
  #define EDEADLK 35 /* Resource deadlock would occur */资源将发生死锁
  #define ENAMETOOLONG 36 /* File name too long */文件名太长
  #define ENOLCK 37 /* No record locks available */没有可用的记录锁
  #define ENOSYS 38 /* Function not implemented */函数未实现
  #define ENOTEMPTY 39 /* Directory not empty */目录非空
  #define ELOOP 40 /* Too many symbolic links encountered */遇到太多符号链接
  #define EWOULDBLOCK EAGAIN /* Operation would block */操作会阻塞
  #define ENOMSG 42 /* No message of desired type */没有符合需求类型的消息
  #define EIDRM 43 /* Identifier removed */标识符已删除
  #define ECHRNG 44 /* Channel number out of range */通道编号超出范围
  #define EL2NSYNC 45 /* Level 2 not synchronized */level2不同步
  #define EL3HLT 46 /* Level 3 halted */3级停止
  #define EL3RST 47 /* Level 3 reset */3级重置
  #define ELNRNG 48 /* Link number out of range */链接编号超出范围
  #define EUNATCH 49 /* Protocol driver not attached */协议驱动程序没有连接
  #define ENOCSI 50 /* No CSI structure available */没有可用的CSI结构
  #define EL2HLT 51 /* Level 2 halted */2级停止
  #define EBADE 52 /* Invalid exchange */无效交换
  #define EBADR 53 /* Invalid request descriptor */无效请求描述
  #define EXFULL 54 /* Exchange full */交换完全
  #define ENOANO 55 /* No anode */无阳极
  #define EBADRQC 56 /* Invalid request code */无效请求码
  #define EBADSLT 57 /* Invalid slot */无效插槽
  #define EDEADLOCK EDEADLK
  #define EBFONT 59 /* Bad font file format */错误的字体文件格式
  #define ENOSTR 60 /* Device not a stream */设备不是流
  #define ENODATA 61 /* No data available */无数据
  #define ETIME 62 /* Timer expired */计时器到期
  #define ENOSR 63 /* Out of streams resources */流资源不足
  #define ENONET 64 /* Machine is not on the network */机器不在网络上
  #define ENOPKG 65 /* Package not installed */包未安装
  #define EREMOTE 66 /* Object is remote */对象是远程
  #define ENOLINK 67 /* Link has been severed */链接正在服务中
  #define EADV 68 /* Advertise error */广告错误
  #define ESRMNT 69 /* Srmount error */？
  #define ECOMM 70 /* Communication error on send */发送过程中通讯错误
  #define EPROTO 71 /* Protocol error */协议错误
  #define EMULTIHOP 72 /* Multihop attempted */多跳尝试
  #define EDOTDOT 73 /* RFS specific error */RFS特定错误
  #define EBADMSG 74 /* Not a data message */不是数据类型消息
  #define EOVERFLOW 75 /* Value too large for defined data type */对指定的数据类型来说值太大
  #define ENOTUNIQ 76 /* Name not unique on network */网络上名字不唯一
  #define EBADFD 77 /* File descriptor in bad state */文件描述符状态错误
  #define EREMCHG 78 /* Remote address changed */远程地址改变
  #define ELIBACC 79 /* Can not access a needed shared library */无法访问需要的共享库
  #define ELIBBAD 80 /* Accessing a corrupted shared library */访问损坏的共享库

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