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nuttx/include/errno.h
Gregory Nutt 3dca5eba15 Completes the Implementation of the TLS-based errno 
- Remove per-thread errno from the TCB structure (pterrno)
- Remove get_errno() and set_errno() as functions.  The macros are still available as stubs and will be needed in the future if we need to access the errno from a different address environment (KERNEL mode).
- Add errno value to the tls_info_s structure definitions
- Move sched/errno to libs/libc/errno.  Replace old TCB access to the errno with TLS access to the errno.
2020-05-07 23:11:34 +01:00

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/****************************************************************************
* include/errno.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_ERRNO_H
#define __INCLUDE_ERRNO_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/compiler.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Convenience/compatibility definition. If the errno is accessed from the
* internal OS code, then the OS code should use the set_errno() and
* get_errno(). Currently, those are just placeholders but would be needed
* in the KERNEL mode build in order to instantiate the process address
* environment as necessary to access the TLS-based errno variable.
*/
#define errno *__errno()
#define set_errno(e) \
do \
{ \
errno = (int)(e); \
} \
while (0)
#define get_errno() errno
/* Definitions of error numbers and the string that would be
* returned by strerror().
*/
#define EPERM 1
#define EPERM_STR "Operation not permitted"
#define ENOENT 2
#define ENOENT_STR "No such file or directory"
#define ESRCH 3
#define ESRCH_STR "No such process"
#define EINTR 4
#define EINTR_STR "Interrupted system call"
#define EIO 5
#define EIO_STR "I/O error"
#define ENXIO 6
#define ENXIO_STR "No such device or address"
#define E2BIG 7
#define E2BIG_STR "Arg list too long"
#define ENOEXEC 8
#define ENOEXEC_STR "Exec format error"
#define EBADF 9
#define EBADF_STR "Bad file number"
#define ECHILD 10
#define ECHILD_STR "No child processes"
#define EAGAIN 11
#define EWOULDBLOCK EAGAIN
#define EAGAIN_STR "Try again"
#define ENOMEM 12
#define ENOMEM_STR "Out of memory"
#define EACCES 13
#define EACCES_STR "Permission denied"
#define EFAULT 14 /* Linux errno extension */
#define EFAULT_STR "Bad address"
#define ENOTBLK 15
#define ENOTBLK_STR "Block device required"
#define EBUSY 16
#define EBUSY_STR "Device or resource busy"
#define EEXIST 17
#define EEXIST_STR "File exists"
#define EXDEV 18
#define EXDEV_STR "Cross-device link"
#define ENODEV 19
#define ENODEV_STR "No such device"
#define ENOTDIR 20
#define ENOTDIR_STR "Not a directory"
#define EISDIR 21
#define EISDIR_STR "Is a directory"
#define EINVAL 22
#define EINVAL_STR "Invalid argument"
#define ENFILE 23
#define ENFILE_STR "File table overflow"
#define EMFILE 24
#define EMFILE_STR "Too many open files"
#define ENOTTY 25
#define ENOTTY_STR "Not a typewriter"
#define ETXTBSY 26
#define ETXTBSY_STR "Text file busy"
#define EFBIG 27
#define EFBIG_STR "File too large"
#define ENOSPC 28
#define ENOSPC_STR "No space left on device"
#define ESPIPE 29
#define ESPIPE_STR "Illegal seek"
#define EROFS 30
#define EROFS_STR "Read-only file system"
#define EMLINK 31
#define EMLINK_STR "Too many links"
#define EPIPE 32
#define EPIPE_STR "Broken pipe"
#define EDOM 33
#define EDOM_STR "Math argument out of domain of func"
#define ERANGE 34
#define ERANGE_STR "Math result not representable"
#define ENOMSG 35
#define ENOMSG_STR "No message of desired type"
#define EIDRM 36
#define EIDRM_STR "Identifier removed"
#define ECHRNG 37 /* Linux errno extension */
#define ECHRNG_STR "Channel number out of range"
#define EL2NSYNC 38 /* Linux errno extension */
#define EL2NSYNC_STR "Level 2 not synchronized"
#define EL3HLT 39 /* Linux errno extension */
#define EL3HLT_STR "Level 3 halted"
#define EL3RST 40 /* Linux errno extension */
#define EL3RST_STR "Level 3 reset"
#define ELNRNG 41 /* Linux errno extension */
#define ELNRNG_STR "Link number out of range"
#define EUNATCH 42 /* Linux errno extension */
#define EUNATCH_STR "Protocol driver not attached"
#define ENOCSI 43 /* Linux errno extension */
#define ENOCSI_STR "No CSI structure available"
#define EL2HLT 44 /* Linux errno extension */
#define EL2HLT_STR "Level 2 halted"
#define EDEADLK 45
#define EDEADLK_STR "Resource deadlock would occur"
#define ENOLCK 46
#define ENOLCK_STR "No record locks available"
#define EBADE 50 /* Linux errno extension */
#define EBADE_STR "Invalid exchange"
#define EBADR 51 /* Linux errno extension */
#define EBADR_STR "Invalid request descriptor"
#define EXFULL 52 /* Linux errno extension */
#define EXFULL_STR "Exchange full"
#define ENOANO 53 /* Linux errno extension */
#define ENOANO_STR "No anode"
#define EBADRQC 54 /* Linux errno extension */
#define EBADRQC_STR "Invalid request code"
#define EBADSLT 55 /* Linux errno extension */
#define EBADSLT_STR "Invalid slot"
#define EDEADLOCK 56 /* Linux errno extension */
#define EDEADLOCK_STR "File locking deadlock error"
#define EBFONT 57 /* Linux errno extension */
#define EBFONT_STR "Bad font file format"
#define ENOSTR 60
#define ENOSTR_STR "Device not a stream"
#define ENODATA 61
#define ENODATA_STR "No data available"
#define ETIME 62
#define ETIME_STR "Timer expired"
#define ENOSR 63
#define ENOSR_STR "Out of streams resources"
#define ENONET 64 /* Linux errno extension */
#define ENONET_STR "Machine is not on the network"
#define ENOPKG 65 /* Linux errno extension */
#define ENOPKG_STR "Package not installed"
#define EREMOTE 66 /* Linux errno extension */
#define EREMOTE_STR "Object is remote"
#define ENOLINK 67
#define ENOLINK_STR "Link has been severed"
#define EADV 68 /* Linux errno extension */
#define EADV_STR "Advertise error"
#define ESRMNT 69 /* Linux errno extension */
#define ESRMNT_STR "Srmount error"
#define ECOMM 70 /* Linux errno extension */
#define ECOMM_STR "Communication error on send"
#define EPROTO 71
#define EPROTO_STR "Protocol error"
#define EMULTIHOP 74
#define EMULTIHOP_STR "Multihop attempted"
#define ELBIN 75 /* Linux errno extension */
#define ELBIN_STR "Inode is remote"
#define EDOTDOT 76 /* Linux errno extension */
#define EDOTDOT_STR "RFS specific error"
#define EBADMSG 77
#define EBADMSG_STR "Not a data message"
#define EFTYPE 79
#define EFTYPE_STR "Inappropriate file type or format"
#define ENOTUNIQ 80 /* Linux errno extension */
#define ENOTUNIQ_STR "Name not unique on network"
#define EBADFD 81 /* Linux errno extension */
#define EBADFD_STR "File descriptor in bad state"
#define EREMCHG 82 /* Linux errno extension */
#define EREMCHG_STR "Remote address changed"
#define ELIBACC 83 /* Linux errno extension */
#define ELIBACC_STR "Can not access a needed shared library"
#define ELIBBAD 84 /* Linux errno extension */
#define ELIBBAD_STR "Accessing a corrupted shared library"
#define ELIBSCN 85 /* Linux errno extension */
#define ELIBSCN_STR ".lib section in a.out corrupted"
#define ELIBMAX 86 /* Linux errno extension */
#define ELIBMAX_STR "Attempting to link in too many shared libraries"
#define ELIBEXEC 87 /* Linux errno extension */
#define ELIBEXEC_STR "Cannot exec a shared library directly"
#define ENOSYS 88
#define ENOSYS_STR "Function not implemented"
#define ENMFILE 89 /* Cygwin */
#define ENMFILE_STR "No more files"
#define ENOTEMPTY 90
#define ENOTEMPTY_STR "Directory not empty"
#define ENAMETOOLONG 91
#define ENAMETOOLONG_STR "File name too long"
#define ELOOP 92
#define ELOOP_STR "Too many symbolic links encountered"
#define EOPNOTSUPP 95
#define EOPNOTSUPP_STR "Operation not supported on transport endpoint"
#define EPFNOSUPPORT 96
#define EPFNOSUPPORT_STR "Protocol family not supported"
#define ECONNRESET 104
#define ECONNRESET_STR "Connection reset by peer"
#define ENOBUFS 105
#define ENOBUFS_STR "No buffer space available"
#define EAFNOSUPPORT 106
#define EAFNOSUPPORT_STR "Address family not supported by protocol"
#define EPROTOTYPE 107
#define EPROTOTYPE_STR "Protocol wrong type for socket"
#define ENOTSOCK 108
#define ENOTSOCK_STR "Socket operation on non-socket"
#define ENOPROTOOPT 109
#define ENOPROTOOPT_STR "Protocol not available"
#define ESHUTDOWN 110 /* Linux errno extension */
#define ESHUTDOWN_STR "Cannot send after transport endpoint shutdown"
#define ECONNREFUSED 111
#define ECONNREFUSED_STR "Connection refused"
#define EADDRINUSE 112
#define EADDRINUSE_STR "Address already in use"
#define ECONNABORTED 113
#define ECONNABORTED_STR "Software caused connection abort"
#define ENETUNREACH 114
#define ENETUNREACH_STR "Network is unreachable"
#define ENETDOWN 115
#define ENETDOWN_STR "Network is down"
#define ETIMEDOUT 116
#define ETIMEDOUT_STR "Connection timed out"
#define EHOSTDOWN 117
#define EHOSTDOWN_STR "Host is down"
#define EHOSTUNREACH 118
#define EHOSTUNREACH_STR "No route to host"
#define EINPROGRESS 119
#define EINPROGRESS_STR "Operation now in progress"
#define EALREADY 120
#define EALREADY_STR "Socket already connected"
#define EDESTADDRREQ 121
#define EDESTADDRREQ_STR "Destination address required"
#define EMSGSIZE 122
#define EMSGSIZE_STR "Message too long"
#define EPROTONOSUPPORT 123
#define EPROTONOSUPPORT_STR "Protocol not supported"
#define ESOCKTNOSUPPORT 124 /* Linux errno extension */
#define ESOCKTNOSUPPORT_STR "Socket type not supported"
#define EADDRNOTAVAIL 125
#define EADDRNOTAVAIL_STR "Cannot assign requested address"
#define ENETRESET 126
#define ENETRESET_STR "Network dropped connection because of reset"
#define EISCONN 127
#define EISCONN_STR "Transport endpoint is already connected"
#define ENOTCONN 128
#define ENOTCONN_STR "Transport endpoint is not connected"
#define ETOOMANYREFS 129
#define ETOOMANYREFS_STR "Too many references: cannot splice"
#define EPROCLIM 130
#define EPROCLIM_STR "Limit would be exceeded by attempted fork"
#define EUSERS 131
#define EUSERS_STR "Too many users"
#define EDQUOT 132
#define EDQUOT_STR "Quota exceeded"
#define ESTALE 133
#define ESTALE_STR "Stale NFS file handle"
#define ENOTSUP 134
#define ENOTSUP_STR "Not supported"
#define ENOMEDIUM 135 /* Linux errno extension */
#define ENOMEDIUM_STR "No medium found"
#define ENOSHARE 136 /* Cygwin */
#define ENOSHARE_STR "No such host or network path"
#define ECASECLASH 137 /* Cygwin */
#define ECASECLASH_STR "Filename exists with different case"
#define EILSEQ 138
#define EILSEQ_STR "Illegal byte sequence"
#define EOVERFLOW 139
#define EOVERFLOW_STR "Value too large for defined data type"
#define ECANCELED 140
#define ECANCELED_STR "Operation cancelled"
#define ENOTRECOVERABLE 141
#define ENOTRECOVERABLE_STR "State not recoverable"
#define EOWNERDEAD 142
#define EOWNERDEAD_STR "Previous owner died"
#define ESTRPIPE 143 /* Linux errno extension */
#define ESTRPIPE_STR "Streams pipe error"
#define __ELASTERROR 2000 /* Users can add values starting here */
/****************************************************************************
* Public Type Definitions
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/* Return a pointer to the thread specific errno. */
FAR int *__errno(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __INCLUDE_ERRNO_H */
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