# Linux Kernel 错误码汇总

头文件为：

```cpp
#include <linux/errno.h>
```

错误码及其在源码中的位置如下：

```cpp
// asm-generic/errno-base.h
#define EPERM           1   /* Operation not permitted */
#define ENOENT          2   /* No such file or directory */
#define ESRCH           3   /* No such process */
#define EINTR           4   /* Interrupted system call */
#define EIO             5   /* I/O error */
#define ENXIO           6   /* No such device or address */
#define E2BIG           7   /* Argument list too long */
#define ENOEXEC         8   /* Exec format error */
#define EBADF           9   /* Bad file number */
#define ECHILD          10  /* No child processes */
#define EAGAIN          11  /* Try again */
#define ENOMEM          12  /* Out of memory */
#define EACCES          13  /* Permission denied */
#define EFAULT          14  /* Bad address */
#define ENOTBLK         15  /* Block device required */
#define EBUSY           16  /* Device or resource busy */
#define EEXIST          17  /* File exists */
#define EXDEV           18  /* Cross-device link */
#define ENODEV          19  /* No such device */
#define ENOTDIR         20  /* Not a directory */
#define EISDIR          21  /* Is a directory */
#define EINVAL          22  /* Invalid argument */
#define ENFILE          23  /* File table overflow */
#define EMFILE          24  /* Too many open files */
#define ENOTTY          25  /* Not a typewriter */
#define ETXTBSY         26  /* Text file busy */
#define EFBIG           27  /* File too large */
#define ENOSPC          28  /* No space left on device */
#define ESPIPE          29  /* Illegal seek */
#define EROFS           30  /* Read-only file system */
#define EMLINK          31  /* Too many links */
#define EPIPE           32  /* Broken pipe */
#define EDOM            33  /* Math argument out of domain of func */
#define ERANGE          34  /* Math result not representable */

// asm-generic/errno.h
#define EWOULDBLOCK     35 /* Operation would block */
#define EINPROGRESS     36 /* Operation now in progress */
#define EALREADY        37 /* Operation already in progress */
#define ENOTSOCK        38 /* Socket operation on non-socket */
#define EDESTADDRREQ    39 /* Destination address required */
#define EMSGSIZE        40 /* Message too long */
#define EPROTOTYPE      41 /* Protocol wrong type for socket */
#define ENOPROTOOPT     42 /* Protocol not available */
#define EPROTONOSUPPORT 43 /* Protocol not supported */
#define ESOCKTNOSUPPORT 44 /* Socket type not supported */
#define EOPNOTSUPP      45 /* Op not supported on transport endpoint */
#define EPFNOSUPPORT    46 /* Protocol family not supported */
#define EAFNOSUPPORT    47 /* Address family not supported by protocol */
#define EADDRINUSE      48 /* Address already in use */
#define EADDRNOTAVAIL   49 /* Cannot assign requested address */
#define ENETDOWN        50 /* Network is down */
#define ENETUNREACH     51 /* Network is unreachable */
#define ENETRESET       52 /* Net dropped connection because of reset */
#define ECONNABORTED    53 /* Software caused connection abort */
#define ECONNRESET      54 /* Connection reset by peer */
#define ENOBUFS         55 /* No buffer space available */
#define EISCONN         56 /* Transport endpoint is already connected */
#define ENOTCONN        57 /* Transport endpoint is not connected */
#define ESHUTDOWN       58 /* No send after transport endpoint shutdown */
#define ETOOMANYREFS    59 /* Too many references: cannot splice */
#define ETIMEDOUT       60 /* Connection timed out */
#define ECONNREFUSED    61 /* Connection refused */
#define ELOOP           62 /* Too many symbolic links encountered */
#define ENAMETOOLONG    63 /* File name too long */
#define EHOSTDOWN       64 /* Host is down */
#define EHOSTUNREACH    65 /* No route to host */
#define ENOTEMPTY       66 /* Directory not empty */
#define EPROCLIM        67 /* SUNOS: Too many processes */
#define EUSERS          68 /* Too many users */
#define EDQUOT          69 /* Quota exceeded */
#define ESTALE          70 /* Stale file handle */
#define EREMOTE         71 /* Object is remote */
#define ENOSTR          72 /* Device not a stream */
#define ETIME           73 /* Timer expired */
#define ENOSR           74 /* Out of streams resources */
#define ENOMSG          75 /* No message of desired type */
#define EBADMSG         76 /* Not a data message */
#define EIDRM           77 /* Identifier removed */
#define EDEADLK         78 /* Resource deadlock would occur */
#define ENOLCK          79 /* No record locks available */
#define ENONET          80 /* Machine is not on the network */
#define ERREMOTE        81 /* SunOS: Too many lvls of remote in path */
#define ENOLINK         82 /* Link has been severed */
#define EADV            83 /* Advertise error */
#define ESRMNT          84 /* Srmount error */
#define ECOMM           85 /* Communication error on send */
#define EPROTO          86 /* Protocol error */
#define EMULTIHOP       87 /* Multihop attempted */
#define EDOTDOT         88 /* RFS specific error */
#define EREMCHG         89 /* Remote address changed */
#define ENOSYS          90 /* Function not implemented */
/* The rest have no SunOS equivalent. */
#define ESTRPIPE        91 /* Streams pipe error */
#define EOVERFLOW       92 /* Value too large for defined data type */
#define EBADFD          93 /* File descriptor in bad state */
#define ECHRNG          94 /* Channel number out of range */
#define EL2NSYNC        95 /* Level 2 not synchronized */
#define EL3HLT          96 /* Level 3 halted */
#define EL3RST          97 /* Level 3 reset */
#define ELNRNG          98 /* Link number out of range */
#define EUNATCH         99 /* Protocol driver not attached */
#define ENOCSI          100 /* No CSI structure available */
#define EL2HLT          101 /* Level 2 halted */
#define EBADE           102 /* Invalid exchange */
#define EBADR           103 /* Invalid request descriptor */
#define EXFULL          104 /* Exchange full */
#define ENOANO          105 /* No anode */
#define EBADRQC         106 /* Invalid request code */
#define EBADSLT         107 /* Invalid slot */
#define EDEADLOCK       108 /* File locking deadlock error */
#define EBFONT          109 /* Bad font file format */
#define ELIBEXEC        110 /* Cannot exec a shared library directly */
#define ENODATA         111 /* No data available */
#define ELIBBAD         112 /* Accessing a corrupted shared library */
#define ENOPKG          113 /* Package not installed */
#define ELIBACC         114 /* Can not access a needed shared library */
#define ENOTUNIQ        115 /* Name not unique on network */
#define ERESTART        116 /* Interrupted syscall should be restarted */
#define EUCLEAN         117 /* Structure needs cleaning */
#define ENOTNAM         118 /* Not a XENIX named type file */
#define ENAVAIL         119 /* No XENIX semaphores available */
#define EISNAM          120 /* Is a named type file */
#define EREMOTEIO       121 /* Remote I/O error */
#define EILSEQ          122 /* Illegal byte sequence */
#define ELIBMAX         123 /* Atmpt to link in too many shared libs */
#define ELIBSCN         124 /* .lib section in a.out corrupted */

#define ENOMEDIUM       125 /* No medium found */
#define EMEDIUMTYPE     126 /* Wrong medium type */
#define ECANCELED       127 /* Operation Cancelled */
#define ENOKEY          128 /* Required key not available */
#define EKEYEXPIRED     129 /* Key has expired */
#define EKEYREVOKED     130 /* Key has been revoked */
#define EKEYREJECTED    131 /* Key was rejected by service */

/* for robust mutexes */
#define EOWNERDEAD      132 /* Owner died */
#define ENOTRECOVERABLE 133 /* State not recoverable */

#define ERFKILL         134 /* Operation not possible due to RF-kill */

#define EHWPOISON       135 /* Memory page has hardware error */
```