This group contains the Internal Error Handler implementation. More...

Files
file	interr.h
	This header file provides the interfaces of the Internal Error Handler.

file	interr.c
	This source file contains the definition of ::_System_state_Current and the implementation of _Terminate() and _Internal_error().

Typedefs
typedef CPU_Uint32ptr	Internal_errors_t

Enumerations
enum	Internal_errors_Source { INTERNAL_ERROR_CORE = 0 , INTERNAL_ERROR_RTEMS_API = 1 , INTERNAL_ERROR_POSIX_API = 2 , RTEMS_FATAL_SOURCE_BDBUF = 3 , RTEMS_FATAL_SOURCE_APPLICATION = 4 , RTEMS_FATAL_SOURCE_EXIT = 5 , RTEMS_FATAL_SOURCE_BSP = 6 , RTEMS_FATAL_SOURCE_ASSERT = 7 , RTEMS_FATAL_SOURCE_STACK_CHECKER = 8 , RTEMS_FATAL_SOURCE_EXCEPTION = 9 , RTEMS_FATAL_SOURCE_SMP = 10 , RTEMS_FATAL_SOURCE_PANIC = 11 , RTEMS_FATAL_SOURCE_INVALID_HEAP_FREE = 12 , RTEMS_FATAL_SOURCE_HEAP = 13 , RTEMS_FATAL_SOURCE_SPURIOUS_INTERRUPT = 14 , RTEMS_FATAL_SOURCE_LAST = 0x7fffffff }
	This type lists the possible sources from which an error can be reported. More...

enum	Internal_errors_Core_list { INTERNAL_ERROR_TOO_LITTLE_WORKSPACE = 2 , INTERNAL_ERROR_THREAD_EXITTED = 5 , INTERNAL_ERROR_INCONSISTENT_MP_INFORMATION = 6 , INTERNAL_ERROR_INVALID_NODE = 7 , INTERNAL_ERROR_NO_MPCI = 8 , INTERNAL_ERROR_BAD_PACKET = 9 , INTERNAL_ERROR_OUT_OF_PACKETS = 10 , INTERNAL_ERROR_OUT_OF_GLOBAL_OBJECTS = 11 , INTERNAL_ERROR_OUT_OF_PROXIES = 12 , INTERNAL_ERROR_INVALID_GLOBAL_ID = 13 , INTERNAL_ERROR_NO_MEMORY_FOR_HEAP = 23 , INTERNAL_ERROR_CPU_ISR_INSTALL_VECTOR = 24 , INTERNAL_ERROR_RESOURCE_IN_USE = 25 , INTERNAL_ERROR_THREAD_QUEUE_DEADLOCK = 28 , INTERNAL_ERROR_THREAD_QUEUE_ENQUEUE_STICKY_FROM_BAD_STATE = 29 , INTERNAL_ERROR_BAD_THREAD_DISPATCH_DISABLE_LEVEL = 30 , INTERNAL_ERROR_BAD_THREAD_DISPATCH_ENVIRONMENT = 31 , INTERNAL_ERROR_RTEMS_INIT_TASK_CREATE_FAILED = 32 , INTERNAL_ERROR_POSIX_INIT_THREAD_CREATE_FAILED = 33 , INTERNAL_ERROR_LIBIO_STDOUT_FD_OPEN_FAILED = 36 , INTERNAL_ERROR_LIBIO_STDERR_FD_OPEN_FAILED = 37 , INTERNAL_ERROR_ILLEGAL_USE_OF_FLOATING_POINT_UNIT = 38 , INTERNAL_ERROR_ARC4RANDOM_GETENTROPY_FAIL = 39 , INTERNAL_ERROR_NO_MEMORY_FOR_PER_CPU_DATA = 40 , INTERNAL_ERROR_TOO_LARGE_TLS_SIZE = 41 , INTERNAL_ERROR_RTEMS_INIT_TASK_CONSTRUCT_FAILED = 42 , INTERNAL_ERROR_IDLE_THREAD_CREATE_FAILED = 43 , INTERNAL_ERROR_NO_MEMORY_FOR_IDLE_TASK_STORAGE = 44 , INTERNAL_ERROR_IDLE_THREAD_STACK_TOO_SMALL = 45 }
	A list of errors which are generated internally by the executive core. More...

Functions
RTEMS_NO_RETURN void	_Terminate (Internal_errors_Source the_source, Internal_errors_t the_error)
	Initiates system termination. More...

RTEMS_NO_RETURN void	_Internal_error (Internal_errors_Core_list core_error)
	Terminates the system with an INTERNAL_ERROR_CORE fatal source and the specified core error code. More...

Detailed Description

This group contains the Internal Error Handler implementation.

This handler encapsulates functionality to terminate the system.

Enumeration Type Documentation

◆ Internal_errors_Core_list

enum Internal_errors_Core_list

A list of errors which are generated internally by the executive core.

Do not re-use numbers of obsolete error codes. Comment no longer used error codes and do not uncomment commented or obsolete error codes.

◆ Internal_errors_Source

enum Internal_errors_Source

This type lists the possible sources from which an error can be reported.

Enumerator
INTERNAL_ERROR_CORE	Errors of the core system. See also Internal_errors_Core_list.
INTERNAL_ERROR_RTEMS_API	Errors of the RTEMS API.
INTERNAL_ERROR_POSIX_API	Errors of the POSIX API.
RTEMS_FATAL_SOURCE_BDBUF	Fatal source for the block device cache. See also rtems_bdbuf_fatal_code.
RTEMS_FATAL_SOURCE_APPLICATION	Fatal source for application specific errors. The fatal code is application specific.
RTEMS_FATAL_SOURCE_EXIT	Fatal source of exit(). The fatal code is the exit() status code.
RTEMS_FATAL_SOURCE_BSP	Fatal source for BSP errors. The fatal codes are defined in <bsp/fatal.h>. Examples are interrupt and exception initialization. See also bsp_fatal_code and bsp_fatal().
RTEMS_FATAL_SOURCE_ASSERT	Fatal source of assert(). The fatal code is the pointer value of the assert context. See also rtems_assert_context.
RTEMS_FATAL_SOURCE_STACK_CHECKER	Fatal source of the stack checker. The fatal code is the object name of the executing task.
RTEMS_FATAL_SOURCE_EXCEPTION	Fatal source of the exceptions. The fatal code is the pointer value of the exception frame pointer. See also rtems_exception_frame and rtems_exception_frame_print().
RTEMS_FATAL_SOURCE_SMP	Fatal source of SMP domain. See also SMP_Fatal_code.
RTEMS_FATAL_SOURCE_PANIC	Fatal source of rtems_panic(). See also rtem
RTEMS_FATAL_SOURCE_INVALID_HEAP_FREE	Fatal source for invalid C program heap frees via free(). The fatal code is the bad pointer.
RTEMS_FATAL_SOURCE_HEAP	Fatal source for heap errors. The fatal code is the address to a heap error context (Heap_Error_context).
RTEMS_FATAL_SOURCE_SPURIOUS_INTERRUPT	Fatal source for spurious interrupts. The fatal code is the interrupt vector number of the spurious interrupt.
RTEMS_FATAL_SOURCE_LAST	The last available fatal source. This enum value ensures that the enum type needs at least 32-bits for architectures with short enums.

Function Documentation

◆ _Internal_error()

RTEMS_NO_RETURN void _Internal_error ( Internal_errors_Core_list core_error )

Terminates the system with an INTERNAL_ERROR_CORE fatal source and the specified core error code.

Parameters

core_error The core error code.

See also: _Terminate().

◆ _Terminate()

RTEMS_NO_RETURN void _Terminate	(	Internal_errors_Source	the_source,
		Internal_errors_t	the_error
	)

Initiates system termination.

This routine is invoked when the application or the executive itself determines that a fatal error has occurred or a final system state is reached (for example after exit()).

The first action of this function is to call the fatal handler of the user extensions. For the initial extensions the following conditions are required

a valid stack pointer and enough stack space,
a valid code memory, and
valid read-only data.

For the initial extensions the read-write data (including BSS segment) is not required on single processor configurations. On SMP configurations however the read-write data must be initialized since this function must determine the state of the other processors and request them to shut-down if necessary.

Non-initial extensions require in addition valid read-write data. The BSP may install an initial extension that performs a system reset. In this case the non-initial extensions will be not called.

Once all fatal handler executed the system state is set to SYSTEM_STATE_TERMINATED.

The final step is to call the CPU specific _CPU_Fatal_halt().

Parameters

the_source	The fatal source indicating the subsystem the fatal condition originated in.
the_error	The fatal error code. This value must be interpreted with respect to the source.

See also: rtems_fatal() and _Internal_error().

Files

Typedefs

Enumerations