Theo/Ludo/Joe
/
ER2_Labyrinthe_V3
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Dependencies: mbed
Embed:
(wiki syntax)
Error functions
[Platform]
Data Structures | |
| struct | _mbed_error_ctx |
| mbed_error_ctx struct More... | |
Typedefs | |
| typedef int | mbed_error_status_t |
| mbed_error_status_t description | |
| typedef enum _mbed_error_type_t | mbed_error_type_t |
| mbed_error_type_t definition | |
| typedef enum _mbed_module_type | mbed_module_type_t |
| mbed_module_type_t definition | |
| typedef enum _mbed_error_code | mbed_error_code_t |
| mbed_error_code_t definition | |
| typedef struct _mbed_error_ctx | mbed_error_ctx |
| mbed_error_ctx struct | |
| typedef void(* | mbed_error_hook_t )(const mbed_error_ctx *error_ctx) |
| Callback/Error hook function prototype. | |
Enumerations | |
| enum | _mbed_error_type_t |
mbed_error_type_t definition More... | |
| enum | _mbed_module_type |
mbed_module_type_t definition More... | |
| enum | _mbed_error_code |
mbed_error_code_t definition More... | |
Functions | |
| void | error (const char *format,...) |
| To generate a fatal compile-time error, you can use the pre-processor error directive. | |
| mbed_error_status_t | mbed_warning (mbed_error_status_t error_status, const char *error_msg, unsigned int error_value, const char *filename, int line_number) |
| Call this function to set a system error/warning. | |
| mbed_error_status_t | mbed_get_first_error (void) |
| Returns the first system error reported. | |
| mbed_error_status_t | mbed_get_last_error (void) |
| Returns the most recent system error reported. | |
| int | mbed_get_error_count (void) |
| Returns the number of system errors reported after boot. | |
| mbed_error_status_t | mbed_error (mbed_error_status_t error_status, const char *error_msg, unsigned int error_value, const char *filename, int line_number) |
| Call this function to set a fatal system error and halt the system. | |
| mbed_error_status_t | mbed_set_error_hook (mbed_error_hook_t custom_error_hook) |
| Registers an application defined error callback with the error handling system. | |
| mbed_error_status_t | mbed_get_first_error_info (mbed_error_ctx *error_info) |
| Reads the first error context information captured. | |
| mbed_error_status_t | mbed_get_last_error_info (mbed_error_ctx *error_info) |
| Reads the last error context information captured. | |
| mbed_error_status_t | mbed_clear_all_errors (void) |
| Clears the last error, first error, error count and all entries in the error history. | |
| mbed_error_status_t | mbed_make_error (mbed_error_type_t error_type, mbed_module_type_t module, mbed_error_code_t error_code) |
| Generates a mbed_error_status_t value based on passed in values for type, module and error code. | |
| int | mbed_get_error_hist_count (void) |
| Returns the current number of entries in the error history, if there has been more than max number of errors logged the number returned will be max depth of error history. | |
| mbed_error_status_t | mbed_get_error_hist_info (int index, mbed_error_ctx *error_info) |
| Reads the error context information for a specific error from error history, specified by the index. | |
| mbed_error_status_t | mbed_save_error_hist (const char *path) |
| Saves the error history information to a file. | |
Typedef Documentation
| typedef enum _mbed_error_code mbed_error_code_t |
mbed_error_code_t definition
mbed_error_code_t enumeration defines the Error codes and Error status values for MBED_MODULE_UNKNOWN.
It defines all of Posix Error Codes/Statuses and Mbed System Error Codes/Statuses.
- Note:
- Posix Error codes are defined using the macro MBED_DEFINE_POSIX_ERROR
For example MBED_DEFINE_POSIX_ERROR( EPERM, EPERM ). This effectively defines the following values:
ERROR_CODE_EPERM = EPERM
ERROR_EPERM = -EPERM
Posix Error codes are defined using the macro MBED_DEFINE_POSIX_ERROR
For example MBED_DEFINE_POSIX_ERROR( EPERM, EPERM ). This macro defines the following values:
ERROR_CODE_EPERM = MBED_POSIX_ERROR_BASE+EPERM
ERROR_EPERM = -(MBED_POSIX_ERROR_BASE+EPERM)
Its effectively equivalent to:
ERROR_CODE_EPERM = 1
ERROR_EPERM = -1
All Posix error codes currently supported by MbedOS(defined in mbed_retarget.h) are defined using the MBED_DEFINE_POSIX_ERROR macro.
Below are the Posic error codes and the description:
EPERM 1 Operation not permitted
ENOENT 2 No such file or directory
ESRCH 3 No such process
EINTR 4 Interrupted system call
EIO 5 I/O error
ENXIO 6 No such device or address
E2BIG 7 Argument list too long
ENOEXEC 8 Exec format error
EBADF 9 Bad file number
ECHILD 10 No child processes
EAGAIN 11 Try again
ENOMEM 12 Out of memory
EACCES 13 Permission denied
EFAULT 14 Bad address
ENOTBLK 15 Block device required
EBUSY 16 Device or resource busy
EEXIST 17 File exists
EXDEV 18 Cross-device link
ENODEV 19 No such device
ENOTDIR 20 Not a directory
EISDIR 21 Is a directory
EINVAL 22 Invalid argument
ENFILE 23 File table overflow
EMFILE 24 Too many open files
ENOTTY 25 Not a typewriter
ETXTBSY 26 Text file busy
EFBIG 27 File too large
ENOSPC 28 No space left on device
ESPIPE 29 Illegal seek
EROFS 30 Read-only file system
EMLINK 31 Too many links
EPIPE 32 Broken pipe
EDOM 33 Math argument out of domain of func
ERANGE 34 Math result not representable
EDEADLK 35 Resource deadlock would occur
ENAMETOOLONG 36 File name too long
ENOLCK 37 No record locks available
ENOSYS 38 Function not implemented
ENOTEMPTY 39 Directory not empty
ELOOP 40 Too many symbolic links encountered
EWOULDBLOCK EAGAIN Operation would block
ENOMSG 42 No message of desired type
EIDRM 43 Identifier removed
ECHRNG 44 Channel number out of range
EL2NSYNC 45 Level 2 not synchronized
EL3HLT 46 Level 3 halted
EL3RST 47 Level 3 reset
ELNRNG 48 Link number out of range
EUNATCH 49 Protocol driver not attached
ENOCSI 50 No CSI structure available
EL2HLT 51 Level 2 halted
EBADE 52 Invalid exchange
EBADR 53 Invalid request descriptor
EXFULL 54 Exchange full
ENOANO 55 No anode
EBADRQC 56 Invalid request code
EBADSLT 57 Invalid slot
EDEADLOCK EDEADLK Resource deadlock would occur
EBFONT 59 Bad font file format
ENOSTR 60 Device not a stream
ENODATA 61 No data available
ETIME 62 Timer expired
ENOSR 63 Out of streams resources
ENONET 64 Machine is not on the network
ENOPKG 65 Package not installed
EREMOTE 66 Object is remote
ENOLINK 67 Link has been severed
EADV 68 Advertise error
ESRMNT 69 Srmount error
ECOMM 70 Communication error on send
EPROTO 71 Protocol error
EMULTIHOP 72 Multihop attempted
EDOTDOT 73 RFS specific error
EBADMSG 74 Not a data message
EOVERFLOW 75 Value too large for defined data type
ENOTUNIQ 76 Name not unique on network
EBADFD 77 File descriptor in bad state
EREMCHG 78 Remote address changed
ELIBACC 79 Can not access a needed shared library
ELIBBAD 80 Accessing a corrupted shared library
ELIBSCN 81 .lib section in a.out corrupted
ELIBMAX 82 Attempting to link in too many shared libraries
ELIBEXEC 83 Cannot exec a shared library directly
EILSEQ 84 Illegal byte sequence
ERESTART 85 Interrupted system call should be restarted
ESTRPIPE 86 Streams pipe error
EUSERS 87 Too many users
ENOTSOCK 88 Socket operation on non-socket
EDESTADDRREQ 89 Destination address required
EMSGSIZE 90 Message too long
EPROTOTYPE 91 Protocol wrong type for socket
ENOPROTOOPT 92 Protocol not available
EPROTONOSUPPORT 93 Protocol not supported
ESOCKTNOSUPPORT 94 Socket type not supported
EOPNOTSUPP 95 Operation not supported on transport endpoint
EPFNOSUPPORT 96 Protocol family not supported
EAFNOSUPPORT 97 Address family not supported by protocol
EADDRINUSE 98 Address already in use
EADDRNOTAVAIL 99 Cannot assign requested address
ENETDOWN 100 Network is down
ENETUNREACH 101 Network is unreachable
ENETRESET 102 Network dropped connection because of reset
ECONNABORTED 103 Software caused connection abort
ECONNRESET 104 Connection reset by peer
ENOBUFS 105 No buffer space available
EISCONN 106 Transport endpoint is already connected
ENOTCONN 107 Transport endpoint is not connected
ESHUTDOWN 108 Cannot send after transport endpoint shutdown
ETOOMANYREFS 109 Too many references: cannot splice
ETIMEDOUT 110 Connection timed out
ECONNREFUSED 111 Connection refused
EHOSTDOWN 112 Host is down
EHOSTUNREACH 113 No route to host
EALREADY 114 Operation already in progress
EINPROGRESS 115 Operation now in progress
ESTALE 116 Stale NFS file handle
EUCLEAN 117 Structure needs cleaning
ENOTNAM 118 Not a XENIX named type file
ENAVAIL 119 No XENIX semaphores available
EISNAM 120 Is a named type file
EREMOTEIO 121 Remote I/O error
EDQUOT 122 Quota exceeded
ENOMEDIUM 123 No medium found
EMEDIUMTYPE 124 Wrong medium type
ECANCELED 125 Operation Canceled
ENOKEY 126 Required key not available
EKEYEXPIRED 127 Key has expired
EKEYREVOKED 128 Key has been revoked
EKEYREJECTED 129 Key was rejected by service
EOWNERDEAD 130 Owner died
ENOTRECOVERABLE 131 State not recoverable
- Note:
- MbedOS System Error codes are defined using the macro MBED_DEFINE_SYSTEM_ERROR
For example MBED_DEFINE_SYSTEM_ERROR( INVALID_ARGUMENT ,1 ) macro defines the following values:
ERROR_CODE_INVALID_ARGUMENT = MBED_SYSTEM_ERROR_BASE+1
ERROR_INVALID_ARGUMENT = MAKE_MBED_ERROR(ERROR_TYPE_SYSTEM, MBED_MODULE_UNKNOWN, ERROR_CODE_INVALID_ARGUMENT)
Its effectively equivalent to:
ERROR_CODE_INVALID_ARGUMENT = 1
ERROR_INVALID_ARGUMENT = 0x80FF0001
(Note that MODULE field is set to MBED_MODULE_UNKNOWN) New System Error codes should be defined using MBED_DEFINE_SYSTEM_ERROR macro and must have an unique error code value
passed as the second argument in the MBED_DEFINE_SYSTEM_ERROR macro.
Below are the Mbed System error codes and the description:UNKNOWN 256 Unknown error INVALID_ARGUMENT 257 Invalid Argument INVALID_DATA 258 Invalid data INVALID_FORMAT 259 Invalid format INVALID_INDEX 260 Invalid Index INVALID_SIZE 261 Invalid Size INVALID_OPERATION 262 Invalid Operation NOT_FOUND 263 Not Found ACCESS_DENIED 264 Access Denied NOT_SUPPORTED 265 Not supported BUFFER_FULL 266 Buffer Full MEDIA_FULL 267 Media/Disk Full ALREADY_IN_USE 268 Already in use TIMEOUT 269 Timeout error NOT_READY 270 Not Ready FAILED_OPERATION 271 Requested Operation failed OPERATION_PROHIBITED 272 Operation prohibited OPERATION_ABORTED 273 Operation failed WRITE_PROTECTED 274 Attempt to write to write-protected resource NO_RESPONSE 275 No response SEMAPHORE_LOCK_FAILED 276 Semaphore lock failed MUTEX_LOCK_FAILED 277 Mutex lock failed SEMAPHORE_UNLOCK_FAILED 278 Semaphore unlock failed MUTEX_UNLOCK_FAILED 279 Mutex unlock failed CRC_ERROR 280 CRC error or mismatch OPEN_FAILED 281 Open failed CLOSE_FAILED 282 Close failed READ_FAILED 283 Read failed WRITE_FAILED 284 Write failed INITIALIZATION_FAILED 285 Initialization failed BOOT_FAILURE 286 Boot failure OUT_OF_MEMORY 287 Out of memory OUT_OF_RESOURCES 288 Out of resources ALLOC_FAILED 289 Alloc failed FREE_FAILED 290 Free failed OVERFLOW 291 Overflow error UNDERFLOW 292 Underflow error STACK_OVERFLOW 293 Stack overflow error ISR_QUEUE_OVERFLOW 294 ISR queue overflow TIMER_QUEUE_OVERFLOW 295 Timer Queue overflow CLIB_SPACE_UNAVAILABLE 296 Standard library error - Space unavailable CLIB_EXCEPTION 297 Standard library error - Exception CLIB_MUTEX_INIT_FAILURE 298 Standard library error - Mutex Init failure CREATE_FAILED 299 Create failed DELETE_FAILED 300 Delete failed THREAD_CREATE_FAILED 301 Thread Create failed THREAD_DELETE_FAILED 302 Thread Delete failed PROHIBITED_IN_ISR_CONTEXT 303 Operation Prohibited in ISR context PINMAP_INVALID 304 Pinmap Invalid RTOS_EVENT 305 Unknown Rtos Error RTOS_THREAD_EVENT 306 Rtos Thread Error RTOS_MUTEX_EVENT 307 Rtos Mutex Error RTOS_SEMAPHORE_EVENT 308 Rtos Semaphore Error RTOS_MEMORY_POOL_EVENT 309 Rtos Memory Pool Error RTOS_TIMER_EVENT 310 Rtos Timer Error RTOS_EVENT_FLAGS_EVENT 311 Rtos Event flags Error RTOS_MESSAGE_QUEUE_EVENT 312 Rtos Message queue Error DEVICE_BUSY 313 Device Busy CONFIG_UNSUPPORTED 314 Configuration not supported CONFIG_MISMATCH 315 Configuration mismatch ALREADY_INITIALIZED 316 Already initialized HARDFAULT_EXCEPTION 317 HardFault exception MEMMANAGE_EXCEPTION 318 MemManage exception BUSFAULT_EXCEPTION 319 BusFault exception USAGEFAULT_EXCEPTION 320 UsageFault exception BLE_NO_FRAME_INITIALIZED, 321 BLE No frame initialized BLE_BACKEND_CREATION_FAILED 322 BLE Backend creation failed BLE_BACKEND_NOT_INITIALIZED 323 BLE Backend not initialized -
Custom Error codes can be defined using the macro DEFINE_CUSTOM_ERROR
This is mainly meant to capture non-generic error codes specific to a device. For example DEFINE_CUSTOM_ERROR( MY_CUSTOM_ERROR ,1 ) macro defines the following values:
ERROR_CODE_MY_CUSTOM_ERROR = MBED_CUSTOM_ERROR_BASE+1
ERROR_MY_CUSTOM_ERROR = MAKE_MBED_ERROR(ERROR_TYPE_CUSTOM, MBED_MODULE_UNKNOWN, ERROR_CODE_MY_CUSTOM_ERROR)
Its effectively equivalent to:
ERROR_CODE_MY_CUSTOM_ERROR = 4097
ERROR_MY_CUSTOM_ERROR = 0xA0FF1001
(Note that MODULE field is set to MBED_MODULE_UNKNOWN)
-
**Using error codes:**
Posix error codes may be used in modules/functions currently using Posix error codes and switching them to Mbed-OS error codes may cause interoperability issues. For example, some of the filesystem, network stack implementations may need to use Posix error codes in order to keep them compatible with other modules interfacing with them, and may continue to use Posix error codes.
In all other cases, like for any native development of Mbed-OS modules Mbed-OS error codes should be used. This makes it easy to use Mbed-OS error reporting/logging infrastructure and makes debugging error scenarios much more efficient.
- Note:
- **Searching for error codes in mbed-os source tree:**
If you get an error report as below which you want to search for in mbed-os source tree, first take note of "Error Code" number.
For example, the below error report has an error code of 259. Find the error name associated with the error code and in this case its INVALID_FORMAT.
Use that error name(INVALID_FORMAT) to search the source tree for code locations setting that specific error code.
If the Error module reported is not 255(which indicates unknown module), you can also use that to narrow down to the specific component reporting the error. See mbed_module_type_t enum above for module mapping.
++ MbedOS Error Info ++
Error Status: 0x80FF013D Code: 317 Module: 255
Error Message: Fault exception
Location: 0x5CD1
Error Value: 0x4A2A
Current Thread: Id: 0x20001E80 Entry: 0x5EB1 StackSize: 0x1000 StackMem: 0x20000E80 SP: 0x2002FF90
For more info, visit: https://mbed.com/s/error?error=0x80FF013D&mbedos=999999&core=0x410FC241&compile=1&ver=5060528
-- MbedOS Error Info --
| typedef struct _mbed_error_ctx mbed_error_ctx |
mbed_error_ctx struct
This struct captures the context information at the time of error.
It primarily contains information about the thread where the error originated,
filename/line number of the source file where the error occurred, a context specific error value(error_value)
and the address where the error originated.
- Note:
- Below are the members of mbed_error_ctx struct
error_status mbed_error_status_t value for this error
error_function_address Address where the error occurred
thread_id ID of the thread which generated the error
thread_entry_address Entry function of the thread which generated the error
thread_stack_size Stack Size of the thread which generated the error
thread_stack_mem Stack Top of the thread which generated the error
thread_current_sp Current Stack Pointer of the thread which generated the error
error_value A context/error specific value associated with this error
error_filename Filename where the error originated
error_line_number Line number in error_filename where the error originated
| typedef void(* mbed_error_hook_t)(const mbed_error_ctx *error_ctx) |
Callback/Error hook function prototype.
Applications needing a callback when an error is reported can use mbed_set_error_hook function to register a callback/error hook function using the following prototype. When an error happens in the system error handling implementation will invoke this callback with the mbed_error_status_t reported and the error context at the time of error.
- Parameters:
-
error_ctx Error context structure associated with this error.
- Returns:
- void
Definition at line 929 of file mbed_error.h.
| typedef int mbed_error_status_t |
mbed_error_status_t description
mbed_error_status_t type represents the error status values under MbedOS. mbed_error_status_t values are signed integers and always be negative.
Internally its encoded as below with bit-fields representing error type, module and error code:
mbed_error_status_t Status Encoding:
| 31 Always Negative | 30-29(2 bits) | 28-24 | 23-16(8 bits) | 15-0(16 bits) | | -1 | TYPE | (unused/reserved) | MODULE TYPE | ERROR CODE |
The error status value range for each error type is as follows:
Posix Error Status-es - 0xFFFFFFFF to 0xFFFFFF01(-1 -255) - This corresponds to Posix error codes represented as negative.
System Error Status-es - 0x80XX0100 to 0x80XX0FFF - This corresponds to System error codes range(all values are negative). Bits 23-16 will be module type(marked with XX)
Custom Error Status-es - 0xA0XX1000 to 0xA0XXFFFF - This corresponds to Custom error codes range(all values are negative). Bits 23-16 will be module type(marked with XX)
The ERROR CODE(values encoded into ERROR CODE bit-field in mbed_error_status_t) value range for each error type is also separated as below:
Posix Error Codes - 1 to 255.
System Error Codes - 256 to 4095.
Custom Error Codes - 4096 to 65535.
- Note:
- Posix error codes are always encoded as negative of their actual value. For example, EPERM is encoded as -EPERM. And, the MODULE TYPE for Posix error codes are always encoded as MBED_MODULE_UNKNOWN.
This is to enable easy injection of Posix error codes into MbedOS error handling system without altering the actual Posix error values.
Accordingly, Posix error codes are represented as -1 to -255 under MbedOS error status representation.
Definition at line 103 of file mbed_error.h.
| typedef enum _mbed_error_type_t mbed_error_type_t |
mbed_error_type_t definition
- Note:
- This enumeration defines the Error types supported. The value of these enum values will be encoded into mbed_error_status_t TYPE field.
See mbed_error_status_t description for more info.
MBED_ERROR_TYPE_SYSTEM - Used to indicate that the error status is of System defined Error type.
MBED_ERROR_TYPE_CUSTOM - Used to indicate that the error status is of Custom defined Error type.
MBED_ERROR_TYPE_POSIX - Used to indicate that the error status is of Posix error type.
| typedef enum _mbed_module_type mbed_module_type_t |
mbed_module_type_t definition
- Note:
- This enumeration defines the module types. The value of these enum values will be encoded into mbed_error_status_t MODULE field.
See mbed_error_status_t description for more info.
MBED_MODULE_UNKNOWN - This module type can be used if caller of the mbed_error/mbed_warning doesn't know who is the actual originator of the error.
Other module values can be used to provide more info on who/where the error originated from.
For example, if I2C driver is the component originating the error you can use MBED_MODULE_DRIVER_I2C to provide more info.
Its used in call to MBED_MAKE_ERROR/MBED_MAKE_SYSTEM_ERROR/MBED_MAKE_CUSTOM_ERROR macros.
Example: mbed_error_status_t i2c_driver_error = MBED_MAKE_ERROR( MBED_MODULE_DRIVER_I2C, MBED_ERROR_CONFIG_UNSUPPORTED );
- Note:
Below are the module code mappings:
MBED_MODULE_APPLICATION 0 Application MBED_MODULE_PLATFORM 1 Platform MBED_MODULE_KERNEL 2 RTX Kernel MBED_MODULE_NETWORK_STACK 3 Network stack MBED_MODULE_HAL 4 HAL - Hardware Abstraction Layer MBED_MODULE_MEMORY_SUBSYSTEM 5 Memory Subsystem MBED_MODULE_FILESYSTEM 6 Filesystem MBED_MODULE_BLOCK_DEVICE 7 Block device MBED_MODULE_DRIVER 8 Driver MBED_MODULE_DRIVER_SERIAL 9 Serial Driver MBED_MODULE_DRIVER_RTC 10 RTC Driver MBED_MODULE_DRIVER_I2C 11 I2C Driver MBED_MODULE_DRIVER_SPI 12 SPI Driver MBED_MODULE_DRIVER_GPIO 13 GPIO Driver MBED_MODULE_DRIVER_ANALOG 14 Analog Driver MBED_MODULE_DRIVER_DIGITAL 15 DigitalIO Driver MBED_MODULE_DRIVER_CAN 16 CAN Driver MBED_MODULE_DRIVER_ETHERNET 17 Ethernet Driver MBED_MODULE_DRIVER_CRC 18 CRC Module MBED_MODULE_DRIVER_PWM 19 PWM Driver MBED_MODULE_DRIVER_QSPI 20 QSPI Driver MBED_MODULE_DRIVER_USB 21 USB Driver MBED_MODULE_TARGET_SDK 22 SDK MBED_MODULE_BLE 23 BLE MBED_MODULE_UNKNOWN 255 Unknown module
Enumeration Type Documentation
| enum _mbed_error_code |
mbed_error_code_t definition
mbed_error_code_t enumeration defines the Error codes and Error status values for MBED_MODULE_UNKNOWN.
It defines all of Posix Error Codes/Statuses and Mbed System Error Codes/Statuses.
- Note:
- Posix Error codes are defined using the macro MBED_DEFINE_POSIX_ERROR
For example MBED_DEFINE_POSIX_ERROR( EPERM, EPERM ). This effectively defines the following values:
ERROR_CODE_EPERM = EPERM
ERROR_EPERM = -EPERM
Posix Error codes are defined using the macro MBED_DEFINE_POSIX_ERROR
For example MBED_DEFINE_POSIX_ERROR( EPERM, EPERM ). This macro defines the following values:
ERROR_CODE_EPERM = MBED_POSIX_ERROR_BASE+EPERM
ERROR_EPERM = -(MBED_POSIX_ERROR_BASE+EPERM)
Its effectively equivalent to:
ERROR_CODE_EPERM = 1
ERROR_EPERM = -1
All Posix error codes currently supported by MbedOS(defined in mbed_retarget.h) are defined using the MBED_DEFINE_POSIX_ERROR macro.
Below are the Posic error codes and the description:
EPERM 1 Operation not permitted
ENOENT 2 No such file or directory
ESRCH 3 No such process
EINTR 4 Interrupted system call
EIO 5 I/O error
ENXIO 6 No such device or address
E2BIG 7 Argument list too long
ENOEXEC 8 Exec format error
EBADF 9 Bad file number
ECHILD 10 No child processes
EAGAIN 11 Try again
ENOMEM 12 Out of memory
EACCES 13 Permission denied
EFAULT 14 Bad address
ENOTBLK 15 Block device required
EBUSY 16 Device or resource busy
EEXIST 17 File exists
EXDEV 18 Cross-device link
ENODEV 19 No such device
ENOTDIR 20 Not a directory
EISDIR 21 Is a directory
EINVAL 22 Invalid argument
ENFILE 23 File table overflow
EMFILE 24 Too many open files
ENOTTY 25 Not a typewriter
ETXTBSY 26 Text file busy
EFBIG 27 File too large
ENOSPC 28 No space left on device
ESPIPE 29 Illegal seek
EROFS 30 Read-only file system
EMLINK 31 Too many links
EPIPE 32 Broken pipe
EDOM 33 Math argument out of domain of func
ERANGE 34 Math result not representable
EDEADLK 35 Resource deadlock would occur
ENAMETOOLONG 36 File name too long
ENOLCK 37 No record locks available
ENOSYS 38 Function not implemented
ENOTEMPTY 39 Directory not empty
ELOOP 40 Too many symbolic links encountered
EWOULDBLOCK EAGAIN Operation would block
ENOMSG 42 No message of desired type
EIDRM 43 Identifier removed
ECHRNG 44 Channel number out of range
EL2NSYNC 45 Level 2 not synchronized
EL3HLT 46 Level 3 halted
EL3RST 47 Level 3 reset
ELNRNG 48 Link number out of range
EUNATCH 49 Protocol driver not attached
ENOCSI 50 No CSI structure available
EL2HLT 51 Level 2 halted
EBADE 52 Invalid exchange
EBADR 53 Invalid request descriptor
EXFULL 54 Exchange full
ENOANO 55 No anode
EBADRQC 56 Invalid request code
EBADSLT 57 Invalid slot
EDEADLOCK EDEADLK Resource deadlock would occur
EBFONT 59 Bad font file format
ENOSTR 60 Device not a stream
ENODATA 61 No data available
ETIME 62 Timer expired
ENOSR 63 Out of streams resources
ENONET 64 Machine is not on the network
ENOPKG 65 Package not installed
EREMOTE 66 Object is remote
ENOLINK 67 Link has been severed
EADV 68 Advertise error
ESRMNT 69 Srmount error
ECOMM 70 Communication error on send
EPROTO 71 Protocol error
EMULTIHOP 72 Multihop attempted
EDOTDOT 73 RFS specific error
EBADMSG 74 Not a data message
EOVERFLOW 75 Value too large for defined data type
ENOTUNIQ 76 Name not unique on network
EBADFD 77 File descriptor in bad state
EREMCHG 78 Remote address changed
ELIBACC 79 Can not access a needed shared library
ELIBBAD 80 Accessing a corrupted shared library
ELIBSCN 81 .lib section in a.out corrupted
ELIBMAX 82 Attempting to link in too many shared libraries
ELIBEXEC 83 Cannot exec a shared library directly
EILSEQ 84 Illegal byte sequence
ERESTART 85 Interrupted system call should be restarted
ESTRPIPE 86 Streams pipe error
EUSERS 87 Too many users
ENOTSOCK 88 Socket operation on non-socket
EDESTADDRREQ 89 Destination address required
EMSGSIZE 90 Message too long
EPROTOTYPE 91 Protocol wrong type for socket
ENOPROTOOPT 92 Protocol not available
EPROTONOSUPPORT 93 Protocol not supported
ESOCKTNOSUPPORT 94 Socket type not supported
EOPNOTSUPP 95 Operation not supported on transport endpoint
EPFNOSUPPORT 96 Protocol family not supported
EAFNOSUPPORT 97 Address family not supported by protocol
EADDRINUSE 98 Address already in use
EADDRNOTAVAIL 99 Cannot assign requested address
ENETDOWN 100 Network is down
ENETUNREACH 101 Network is unreachable
ENETRESET 102 Network dropped connection because of reset
ECONNABORTED 103 Software caused connection abort
ECONNRESET 104 Connection reset by peer
ENOBUFS 105 No buffer space available
EISCONN 106 Transport endpoint is already connected
ENOTCONN 107 Transport endpoint is not connected
ESHUTDOWN 108 Cannot send after transport endpoint shutdown
ETOOMANYREFS 109 Too many references: cannot splice
ETIMEDOUT 110 Connection timed out
ECONNREFUSED 111 Connection refused
EHOSTDOWN 112 Host is down
EHOSTUNREACH 113 No route to host
EALREADY 114 Operation already in progress
EINPROGRESS 115 Operation now in progress
ESTALE 116 Stale NFS file handle
EUCLEAN 117 Structure needs cleaning
ENOTNAM 118 Not a XENIX named type file
ENAVAIL 119 No XENIX semaphores available
EISNAM 120 Is a named type file
EREMOTEIO 121 Remote I/O error
EDQUOT 122 Quota exceeded
ENOMEDIUM 123 No medium found
EMEDIUMTYPE 124 Wrong medium type
ECANCELED 125 Operation Canceled
ENOKEY 126 Required key not available
EKEYEXPIRED 127 Key has expired
EKEYREVOKED 128 Key has been revoked
EKEYREJECTED 129 Key was rejected by service
EOWNERDEAD 130 Owner died
ENOTRECOVERABLE 131 State not recoverable
- Note:
- MbedOS System Error codes are defined using the macro MBED_DEFINE_SYSTEM_ERROR
For example MBED_DEFINE_SYSTEM_ERROR( INVALID_ARGUMENT ,1 ) macro defines the following values:
ERROR_CODE_INVALID_ARGUMENT = MBED_SYSTEM_ERROR_BASE+1
ERROR_INVALID_ARGUMENT = MAKE_MBED_ERROR(ERROR_TYPE_SYSTEM, MBED_MODULE_UNKNOWN, ERROR_CODE_INVALID_ARGUMENT)
Its effectively equivalent to:
ERROR_CODE_INVALID_ARGUMENT = 1
ERROR_INVALID_ARGUMENT = 0x80FF0001
(Note that MODULE field is set to MBED_MODULE_UNKNOWN) New System Error codes should be defined using MBED_DEFINE_SYSTEM_ERROR macro and must have an unique error code value
passed as the second argument in the MBED_DEFINE_SYSTEM_ERROR macro.
Below are the Mbed System error codes and the description:UNKNOWN 256 Unknown error INVALID_ARGUMENT 257 Invalid Argument INVALID_DATA 258 Invalid data INVALID_FORMAT 259 Invalid format INVALID_INDEX 260 Invalid Index INVALID_SIZE 261 Invalid Size INVALID_OPERATION 262 Invalid Operation NOT_FOUND 263 Not Found ACCESS_DENIED 264 Access Denied NOT_SUPPORTED 265 Not supported BUFFER_FULL 266 Buffer Full MEDIA_FULL 267 Media/Disk Full ALREADY_IN_USE 268 Already in use TIMEOUT 269 Timeout error NOT_READY 270 Not Ready FAILED_OPERATION 271 Requested Operation failed OPERATION_PROHIBITED 272 Operation prohibited OPERATION_ABORTED 273 Operation failed WRITE_PROTECTED 274 Attempt to write to write-protected resource NO_RESPONSE 275 No response SEMAPHORE_LOCK_FAILED 276 Semaphore lock failed MUTEX_LOCK_FAILED 277 Mutex lock failed SEMAPHORE_UNLOCK_FAILED 278 Semaphore unlock failed MUTEX_UNLOCK_FAILED 279 Mutex unlock failed CRC_ERROR 280 CRC error or mismatch OPEN_FAILED 281 Open failed CLOSE_FAILED 282 Close failed READ_FAILED 283 Read failed WRITE_FAILED 284 Write failed INITIALIZATION_FAILED 285 Initialization failed BOOT_FAILURE 286 Boot failure OUT_OF_MEMORY 287 Out of memory OUT_OF_RESOURCES 288 Out of resources ALLOC_FAILED 289 Alloc failed FREE_FAILED 290 Free failed OVERFLOW 291 Overflow error UNDERFLOW 292 Underflow error STACK_OVERFLOW 293 Stack overflow error ISR_QUEUE_OVERFLOW 294 ISR queue overflow TIMER_QUEUE_OVERFLOW 295 Timer Queue overflow CLIB_SPACE_UNAVAILABLE 296 Standard library error - Space unavailable CLIB_EXCEPTION 297 Standard library error - Exception CLIB_MUTEX_INIT_FAILURE 298 Standard library error - Mutex Init failure CREATE_FAILED 299 Create failed DELETE_FAILED 300 Delete failed THREAD_CREATE_FAILED 301 Thread Create failed THREAD_DELETE_FAILED 302 Thread Delete failed PROHIBITED_IN_ISR_CONTEXT 303 Operation Prohibited in ISR context PINMAP_INVALID 304 Pinmap Invalid RTOS_EVENT 305 Unknown Rtos Error RTOS_THREAD_EVENT 306 Rtos Thread Error RTOS_MUTEX_EVENT 307 Rtos Mutex Error RTOS_SEMAPHORE_EVENT 308 Rtos Semaphore Error RTOS_MEMORY_POOL_EVENT 309 Rtos Memory Pool Error RTOS_TIMER_EVENT 310 Rtos Timer Error RTOS_EVENT_FLAGS_EVENT 311 Rtos Event flags Error RTOS_MESSAGE_QUEUE_EVENT 312 Rtos Message queue Error DEVICE_BUSY 313 Device Busy CONFIG_UNSUPPORTED 314 Configuration not supported CONFIG_MISMATCH 315 Configuration mismatch ALREADY_INITIALIZED 316 Already initialized HARDFAULT_EXCEPTION 317 HardFault exception MEMMANAGE_EXCEPTION 318 MemManage exception BUSFAULT_EXCEPTION 319 BusFault exception USAGEFAULT_EXCEPTION 320 UsageFault exception BLE_NO_FRAME_INITIALIZED, 321 BLE No frame initialized BLE_BACKEND_CREATION_FAILED 322 BLE Backend creation failed BLE_BACKEND_NOT_INITIALIZED 323 BLE Backend not initialized -
Custom Error codes can be defined using the macro DEFINE_CUSTOM_ERROR
This is mainly meant to capture non-generic error codes specific to a device. For example DEFINE_CUSTOM_ERROR( MY_CUSTOM_ERROR ,1 ) macro defines the following values:
ERROR_CODE_MY_CUSTOM_ERROR = MBED_CUSTOM_ERROR_BASE+1
ERROR_MY_CUSTOM_ERROR = MAKE_MBED_ERROR(ERROR_TYPE_CUSTOM, MBED_MODULE_UNKNOWN, ERROR_CODE_MY_CUSTOM_ERROR)
Its effectively equivalent to:
ERROR_CODE_MY_CUSTOM_ERROR = 4097
ERROR_MY_CUSTOM_ERROR = 0xA0FF1001
(Note that MODULE field is set to MBED_MODULE_UNKNOWN)
-
**Using error codes:**
Posix error codes may be used in modules/functions currently using Posix error codes and switching them to Mbed-OS error codes may cause interoperability issues. For example, some of the filesystem, network stack implementations may need to use Posix error codes in order to keep them compatible with other modules interfacing with them, and may continue to use Posix error codes.
In all other cases, like for any native development of Mbed-OS modules Mbed-OS error codes should be used. This makes it easy to use Mbed-OS error reporting/logging infrastructure and makes debugging error scenarios much more efficient.
- Note:
- **Searching for error codes in mbed-os source tree:**
If you get an error report as below which you want to search for in mbed-os source tree, first take note of "Error Code" number.
For example, the below error report has an error code of 259. Find the error name associated with the error code and in this case its INVALID_FORMAT.
Use that error name(INVALID_FORMAT) to search the source tree for code locations setting that specific error code.
If the Error module reported is not 255(which indicates unknown module), you can also use that to narrow down to the specific component reporting the error. See mbed_module_type_t enum above for module mapping.
++ MbedOS Error Info ++
Error Status: 0x80FF013D Code: 317 Module: 255
Error Message: Fault exception
Location: 0x5CD1
Error Value: 0x4A2A
Current Thread: Id: 0x20001E80 Entry: 0x5EB1 StackSize: 0x1000 StackMem: 0x20000E80 SP: 0x2002FF90
For more info, visit: https://mbed.com/s/error?error=0x80FF013D&mbedos=999999&core=0x410FC241&compile=1&ver=5060528
-- MbedOS Error Info --
Definition at line 578 of file mbed_error.h.
| enum _mbed_error_type_t |
mbed_error_type_t definition
- Note:
- This enumeration defines the Error types supported. The value of these enum values will be encoded into mbed_error_status_t TYPE field.
See mbed_error_status_t description for more info.
MBED_ERROR_TYPE_SYSTEM - Used to indicate that the error status is of System defined Error type.
MBED_ERROR_TYPE_CUSTOM - Used to indicate that the error status is of Custom defined Error type.
MBED_ERROR_TYPE_POSIX - Used to indicate that the error status is of Posix error type.
Definition at line 208 of file mbed_error.h.
| enum _mbed_module_type |
mbed_module_type_t definition
- Note:
- This enumeration defines the module types. The value of these enum values will be encoded into mbed_error_status_t MODULE field.
See mbed_error_status_t description for more info.
MBED_MODULE_UNKNOWN - This module type can be used if caller of the mbed_error/mbed_warning doesn't know who is the actual originator of the error.
Other module values can be used to provide more info on who/where the error originated from.
For example, if I2C driver is the component originating the error you can use MBED_MODULE_DRIVER_I2C to provide more info.
Its used in call to MBED_MAKE_ERROR/MBED_MAKE_SYSTEM_ERROR/MBED_MAKE_CUSTOM_ERROR macros.
Example: mbed_error_status_t i2c_driver_error = MBED_MAKE_ERROR( MBED_MODULE_DRIVER_I2C, MBED_ERROR_CONFIG_UNSUPPORTED );
- Note:
Below are the module code mappings:
MBED_MODULE_APPLICATION 0 Application MBED_MODULE_PLATFORM 1 Platform MBED_MODULE_KERNEL 2 RTX Kernel MBED_MODULE_NETWORK_STACK 3 Network stack MBED_MODULE_HAL 4 HAL - Hardware Abstraction Layer MBED_MODULE_MEMORY_SUBSYSTEM 5 Memory Subsystem MBED_MODULE_FILESYSTEM 6 Filesystem MBED_MODULE_BLOCK_DEVICE 7 Block device MBED_MODULE_DRIVER 8 Driver MBED_MODULE_DRIVER_SERIAL 9 Serial Driver MBED_MODULE_DRIVER_RTC 10 RTC Driver MBED_MODULE_DRIVER_I2C 11 I2C Driver MBED_MODULE_DRIVER_SPI 12 SPI Driver MBED_MODULE_DRIVER_GPIO 13 GPIO Driver MBED_MODULE_DRIVER_ANALOG 14 Analog Driver MBED_MODULE_DRIVER_DIGITAL 15 DigitalIO Driver MBED_MODULE_DRIVER_CAN 16 CAN Driver MBED_MODULE_DRIVER_ETHERNET 17 Ethernet Driver MBED_MODULE_DRIVER_CRC 18 CRC Module MBED_MODULE_DRIVER_PWM 19 PWM Driver MBED_MODULE_DRIVER_QSPI 20 QSPI Driver MBED_MODULE_DRIVER_USB 21 USB Driver MBED_MODULE_TARGET_SDK 22 SDK MBED_MODULE_BLE 23 BLE MBED_MODULE_UNKNOWN 255 Unknown module
Definition at line 263 of file mbed_error.h.
Function Documentation
| void error | ( | const char * | format, |
| ... | |||
| ) |
To generate a fatal compile-time error, you can use the pre-processor error directive.
- Parameters:
-
format C string that contains data stream to be printed. Code snippets below show valid format.
#error "That shouldn't have happened!"
If the compiler evaluates this line, it will report the error and stop the compile.
For example, you could use this to check some user-defined compile-time variables:
#define NUM_PORTS 7 #if (NUM_PORTS > 4) #error "NUM_PORTS must be less than 4" #endif
Reporting Run-Time Errors: To generate a fatal run-time error, you can use the mbed error() function.
error("That shouldn't have happened!");
If the mbed running the program executes this function, it will print the message via the USB serial port, and then die with the blue lights of death!
The message can use printf-style formatting, so you can report variables in the message too. For example, you could use this to check a run-time condition:
if(x >= 5) { error("expected x to be less than 5, but got %d", x); }
| mbed_error_status_t mbed_clear_all_errors | ( | void | ) |
Clears the last error, first error, error count and all entries in the error history.
- Returns:
- 0 or MBED_SUCCESS on success.
| mbed_error_status_t mbed_error | ( | mbed_error_status_t | error_status, |
| const char * | error_msg, | ||
| unsigned int | error_value, | ||
| const char * | filename, | ||
| int | line_number | ||
| ) |
Call this function to set a fatal system error and halt the system.
This function will log the fatal error with the context info and prints the error report and halts the system.
- Parameters:
-
error_status mbed_error_status_t status to be set(See mbed_error_status_t enum above for available error status values). error_msg The error message to be printed out to STDIO/Serial. error_value Value associated with the error status. This would depend on error code/error scenario. filename Name of the source file originating the error( Most callers can pass __FILE__ here ). line_number The line number of the source file originating the error( Most callers can pass __LINE__ here ) .
- Returns:
- 0 or MBED_SUCCESS. MBED_ERROR_INVALID_ARGUMENT if called with invalid error status/codes
mbed_error( MBED_ERROR_PROHIBITED_OPERATION, "Prohibited operation tried", 0, __FILE__, __LINE__ )
- Note:
- See MBED_WARNING/MBED_ERROR macros which provides a wrapper on this API
| int mbed_get_error_count | ( | void | ) |
Returns the number of system errors reported after boot.
- Returns:
- int Number of errors reported.
| int mbed_get_error_hist_count | ( | void | ) |
Returns the current number of entries in the error history, if there has been more than max number of errors logged the number returned will be max depth of error history.
- Returns:
- Current number of entries in the error history.
| mbed_error_status_t mbed_get_error_hist_info | ( | int | index, |
| mbed_error_ctx * | error_info | ||
| ) |
Reads the error context information for a specific error from error history, specified by the index.
- Parameters:
-
index index of the error context entry in the history to be retrieved.
The number of entries in the error history is configured during build and the max index depends on max depth of error history.
index = 0 points to the oldest entry in the history, and index = (max history depth - 1) points to the latest entry in the error history.
error_info This is the mbed_error_context info captured as part of the error history. The caller should pass a pointer to mbed_error_context struct allocated by the caller.
- Returns:
- 0 or MBED_SUCCESS on success. MBED_ERROR_INVALID_ARGUMENT in case of invalid index
| mbed_error_status_t mbed_get_first_error | ( | void | ) |
Returns the first system error reported.
- Returns:
- mbed_error_status_t code logged for the first error or MBED_SUCCESS if no errors are logged.
| mbed_error_status_t mbed_get_first_error_info | ( | mbed_error_ctx * | error_info ) |
Reads the first error context information captured.
- Parameters:
-
error_info This is the mbed_error_context info captured as part of the first mbed_error call. The caller should pass a pointer to mbed_error_context struct allocated by the caller.
- Returns:
- 0 or MBED_SUCCESS on success. MBED_ERROR_INVALID_ARGUMENT in case of invalid index
| mbed_error_status_t mbed_get_last_error | ( | void | ) |
Returns the most recent system error reported.
- Returns:
- mbed_error_status_t code logged for the last error or MBED_SUCCESS if no errors are logged.
| mbed_error_status_t mbed_get_last_error_info | ( | mbed_error_ctx * | error_info ) |
Reads the last error context information captured.
- Parameters:
-
error_info This is the mbed_error_context info captured as part of the last mbed_error call. The caller should pass a pointer to mbed_error_context struct allocated by the caller.
- Returns:
- 0 or MBED_ERROR_SUCCESS on success. MBED_ERROR_INVALID_ARGUMENT in case of invalid index
| mbed_error_status_t mbed_make_error | ( | mbed_error_type_t | error_type, |
| mbed_module_type_t | module, | ||
| mbed_error_code_t | error_code | ||
| ) |
Generates a mbed_error_status_t value based on passed in values for type, module and error code.
- Parameters:
-
error_type Error type based on mbed_error_type_t enum. module Module type based on mbed_module_type_t enum. error_code Error codes defined by mbed_error_code_t enum
- Returns:
- 0 or MBED_ERROR_SUCCESS on success.
| mbed_error_status_t mbed_save_error_hist | ( | const char * | path ) |
Saves the error history information to a file.
- Parameters:
-
path path to the file in the filesystem
- Returns:
- 0 or MBED_ERROR_SUCCESS on success. MBED_ERROR_WRITE_FAILED if writing to file failed MBED_ERROR_INVALID_ARGUMENT if path is not valid
- Note:
- Filesystem support is required in order for this function to work.
| mbed_error_status_t mbed_set_error_hook | ( | mbed_error_hook_t | custom_error_hook ) |
Registers an application defined error callback with the error handling system.
This function will be called with error context info whenever system handles a mbed_error/mbed_warning call NOTE: This function should be implemented for re-entrancy as multiple threads may invoke mbed_error which may cause error hook to be called.
- Parameters:
-
custom_error_hook mbed_error_status_t status to be set(See mbed_error_status_t enum above for available error status values).
- Returns:
- 0 or MBED_SUCCESS on success. MBED_ERROR_INVALID_ARGUMENT in case of NULL for custom_error_hook
mbed_error_status_t my_custom_error_hook(mbed_error_status_t error_status, const mbed_error_ctx *error_ctx) { //Do something with the error_status or error_ctx } mbed_set_error_hook( my_custom_error_hook )
- Note:
- The erro hook function implementation should be re-entrant.
| mbed_error_status_t mbed_warning | ( | mbed_error_status_t | error_status, |
| const char * | error_msg, | ||
| unsigned int | error_value, | ||
| const char * | filename, | ||
| int | line_number | ||
| ) |
Call this function to set a system error/warning.
This function will log the error status with the context info and return to caller.
- Parameters:
-
error_status mbed_error_status_t status to be set(See mbed_error_status_t enum above for available error status values). error_msg The error message to be printed out to STDIO/Serial. error_value Value associated with the error status. This would depend on error code/error scenario. filename Name of the source file originating the error( Most callers can pass __FILE__ here ). line_number The line number of the source file originating the error( Most callers can pass __LINE__ here ) .
- Returns:
- 0 or MBED_SUCCESS. MBED_ERROR_INVALID_ARGUMENT if called with invalid error status/codes
mbed_error( ERROR_OUT_OF_MEMORY, "Out of memory error", 0, __FILE__, __LINE__ )
- Note:
- See MBED_WARNING/MBED_ERROR macros which provides a wrapper on this API
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