linux errno 定义

在 linux/include/asm-generic/errno.h

linux/include/asm-generic/errno-base.h

中，定义了linux kernel 的 errno 值：

linux/include/asm-generic/errno-base.h

#ifndef _ASM_GENERIC_ERRNO_BASE_H#define _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 */#endif

linux/include/asm-generic/errno.h

#ifndef _ASM_GENERIC_ERRNO_H#define _ASM_GENERIC_ERRNO_H#include <asm-generic/errno-base.h>#defineEDEADLK35/* Resource deadlock would occur */#defineENAMETOOLONG36/* File name too long */#defineENOLCK37/* No record locks available */#defineENOSYS38/* Function not implemented */#defineENOTEMPTY39/* Directory not empty */#defineELOOP40/* Too many symbolic links encountered */#defineEWOULDBLOCKEAGAIN/* Operation would block */#defineENOMSG42/* No message of desired type */#defineEIDRM43/* Identifier removed */#defineECHRNG44/* Channel number out of range */#defineEL2NSYNC45/* Level 2 not synchronized */#defineEL3HLT46/* Level 3 halted */#defineEL3RST47/* Level 3 reset */#defineELNRNG48/* Link number out of range */#defineEUNATCH49/* Protocol driver not attached */#defineENOCSI50/* No CSI structure available */#defineEL2HLT51/* Level 2 halted */#defineEBADE52/* Invalid exchange */#defineEBADR53/* Invalid request descriptor */#defineEXFULL54/* Exchange full */#defineENOANO55/* No anode */#defineEBADRQC56/* Invalid request code */#defineEBADSLT57/* Invalid slot */#defineEDEADLOCKEDEADLK#defineEBFONT59/* Bad font file format */#defineENOSTR60/* Device not a stream */#defineENODATA61/* No data available */#defineETIME62/* Timer expired */#defineENOSR63/* Out of streams resources */#defineENONET64/* Machine is not on the network */#defineENOPKG65/* Package not installed */#defineEREMOTE66/* Object is remote */#defineENOLINK67/* Link has been severed */#defineEADV68/* Advertise error */#defineESRMNT69/* Srmount error */#defineECOMM70/* Communication error on send */#defineEPROTO71/* Protocol error */#defineEMULTIHOP72/* Multihop attempted */#defineEDOTDOT73/* RFS specific error */#defineEBADMSG74/* Not a data message */#defineEOVERFLOW75/* Value too large for defined data type */#defineENOTUNIQ76/* Name not unique on network */#defineEBADFD77/* File descriptor in bad state */#defineEREMCHG78/* Remote address changed */#defineELIBACC79/* Can not access a needed shared library */#defineELIBBAD80/* Accessing a corrupted shared library */#defineELIBSCN81/* .lib section in a.out corrupted */#defineELIBMAX82/* Attempting to link in too many shared libraries */#defineELIBEXEC83/* Cannot exec a shared library directly */#defineEILSEQ84/* Illegal byte sequence */#defineERESTART85/* Interrupted system call should be restarted */#defineESTRPIPE86/* Streams pipe error */#defineEUSERS87/* Too many users */#defineENOTSOCK88/* Socket operation on non-socket */#defineEDESTADDRREQ89/* Destination address required */#defineEMSGSIZE90/* Message too long */#defineEPROTOTYPE91/* Protocol wrong type for socket */#defineENOPROTOOPT92/* Protocol not available */#defineEPROTONOSUPPORT93/* Protocol not supported */#defineESOCKTNOSUPPORT94/* Socket type not supported */#defineEOPNOTSUPP95/* Operation not supported on transport endpoint */#defineEPFNOSUPPORT96/* Protocol family not supported */#defineEAFNOSUPPORT97/* Address family not supported by protocol */#defineEADDRINUSE98/* Address already in use */#defineEADDRNOTAVAIL99/* Cannot assign requested address */#defineENETDOWN100/* Network is down */#defineENETUNREACH101/* Network is unreachable */#defineENETRESET102/* Network dropped connection because of reset */#defineECONNABORTED103/* Software caused connection abort */#defineECONNRESET104/* Connection reset by peer */#defineENOBUFS105/* No buffer space available */#defineEISCONN106/* Transport endpoint is already connected */#defineENOTCONN107/* Transport endpoint is not connected */#defineESHUTDOWN108/* Cannot send after transport endpoint shutdown */#defineETOOMANYREFS109/* Too many references: cannot splice */#defineETIMEDOUT110/* Connection timed out */#defineECONNREFUSED111/* Connection refused */#defineEHOSTDOWN112/* Host is down */#defineEHOSTUNREACH113/* No route to host */#defineEALREADY114/* Operation already in progress */#defineEINPROGRESS115/* Operation now in progress */#defineESTALE116/* Stale NFS file handle */#defineEUCLEAN117/* Structure needs cleaning */#defineENOTNAM118/* Not a XENIX named type file */#defineENAVAIL119/* No XENIX semaphores available */#defineEISNAM120/* Is a named type file */#defineEREMOTEIO121/* Remote I/O error */#defineEDQUOT122/* Quota exceeded */#defineENOMEDIUM123/* No medium found */#defineEMEDIUMTYPE124/* Wrong medium type */#defineECANCELED125/* Operation Canceled */#defineENOKEY126/* Required key not available */#defineEKEYEXPIRED127/* Key has expired */#defineEKEYREVOKED128/* Key has been revoked */#defineEKEYREJECTED129/* Key was rejected by service *//* for robust mutexes */#defineEOWNERDEAD130/* Owner died */#defineENOTRECOVERABLE131/* State not recoverable */#define ERFKILL132/* Operation not possible due to RF-kill */#endif