EXCEPTION_RECORD
The EXCEPTION_RECORD
structure describes an exception.
typedef struct _EXCEPTION_RECORD { // exr
DWORD
ExceptionCode;
DWORD
ExceptionFlags;
struct
_EXCEPTION_RECORD *ExceptionRecord;
PVOID
ExceptionAddress;
DWORD
NumberParameters;
DWORD
ExceptionInformation[EXCEPTION_MAXIMUM_PARAMETERS];
} EXCEPTION_RECORD;
Members
ExceptionCode
Specifies the
reason the exception occurred. This is the code generated by a hardware
exception, or the code specified in the RaiseException
Value |
Meaning |
EXCEPTION_ACCESS_VIOLATION |
|
|
The thread
tried to read from or write to a virtual address for which it does not have
the appropriate access. |
EXCEPTION_ARRAY_BOUNDS_EXCEEDED |
|
|
The thread
tried to access an array element that is out of bounds and the underlying
hardware supports bounds checking. |
EXCEPTION_BREAKPOINT |
|
|
A
breakpoint was encountered. |
EXCEPTION_DATATYPE_MISALIGNMENT |
|
|
The thread
tried to read or write data that is misaligned on hardware that does not
provide alignment. For example, 16-bit values must be aligned on 2-byte
boundaries; 32-bit values on 4-byte boundaries, and so on. |
EXCEPTION_FLT_DENORMAL_OPERAND |
|
|
One of the
operands in a floating-point operation is denormal. A denormal value is one
that is too small to represent as a standard floating-point value. |
EXCEPTION_FLT_DIVIDE_BY_ZERO |
|
|
The thread
tried to divide a floating-point value by a floating-point divisor of zero. |
EXCEPTION_FLT_INEXACT_RESULT |
|
|
The result
of a floating-point operation cannot be represented exactly as a decimal
fraction. |
EXCEPTION_FLT_INVALID_OPERATION |
|
|
This exception
represents any floating-point exception not included in this list. |
EXCEPTION_FLT_OVERFLOW |
|
|
The
exponent of a floating-point operation is greater than the magnitude allowed
by the corresponding type. |
EXCEPTION_FLT_STACK_CHECK |
|
|
The stack
overflowed or underflowed as the result of a floating-point operation. |
EXCEPTION_FLT_UNDERFLOW |
|
|
The exponent
of a floating-point operation is less than the magnitude allowed by the
corresponding type. |
EXCEPTION_ILLEGAL_INSTRUCTION |
|
|
The thread
tried to execute an invalid instruction. |
EXCEPTION_IN_PAGE_ERROR |
|
|
The thread
tried to access a page that was not present, and the system was unable to
load the page. For example, this exception might occur if a network
connection is lost while running a program over the network. |
EXCEPTION_INT_DIVIDE_BY_ZERO |
|
|
The thread
tried to divide an integer value by an integer divisor of zero. |
EXCEPTION_INT_OVERFLOW |
|
|
The result
of an integer operation caused a carry out of the most significant bit of the
result. |
EXCEPTION_INVALID_DISPOSITION |
|
|
An
exception handler returned an invalid disposition to the exception
dispatcher. Programmers using a high-level language such as C should never
encounter this exception. |
EXCEPTION_NONCONTINUABLE_EXCEPTION |
|
|
The thread
tried to continue execution after a noncontinuable exception occurred. |
EXCEPTION_PRIV_INSTRUCTION |
|
|
The thread
tried to execute an instruction whose operation is not allowed in the current
machine mode. |
EXCEPTION_SINGLE_STEP |
|
|
A trace
trap or other single-instruction mechanism signaled that one instruction has
been executed. |
EXCEPTION_STACK_OVERFLOW |
|
|
The thread
used up its stack. |
Another
exception code is likely to occur when debugging console processes. It does not
arise because of a programming error. The DBG_CONTROL_C exception code occurs
when CTRL+C is input to a console process that handles CTRL+C signals
and is being debugged. This exception code is not meant to be handled by
applications. It is raised only for the benefit of the debugger, and is raised
only when a debugger is attached to the console process.
ExceptionFlags
Specifies the
exception flags. This member can be either zero, indicating a continuable
exception, or EXCEPTION_NONCONTINUABLE indicating a noncontinuable exception.
Any attempt to continue execution after a noncontinuable exception causes the
EXCEPTION_NONCONTINUABLE_EXCEPTION exception.
ExceptionRecord
Points to an
associated EXCEPTION_RECORD structure. Exception records can be chained
together to provide additional information when nested exceptions occur.
ExceptionAddress
Specifies the
address where the exception occurred.
NumberParameters
Specifies the
number of parameters associated with the exception. This is the number of
defined elements in the ExceptionInformation array.
ExceptionInformation
Specifies an
array of additional 32-bit arguments that describe the exception. The RaiseException
Exception
code |
Array
contents |
EXCEPTION_ACCESS_VIOLATION |
|
|
The first
element of the array contains a read-write flag that indicates the type of
operation that caused the access violation. If this value is zero, the thread
attempted to read the inaccessible data. If this value is 1, the thread
attempted to write to an inaccessible address. |
|
The second
array element specifies the virtual address of the inaccessible data. |
See Also