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BSEXCPT.H
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C/C++ Source or Header
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1997-08-17
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/* SCCSID = @(#)bsexcpt.h 6.9 92/03/15 */
/*************************** START OF SPECIFICATION *****************
*
* Source File Name: bsexcpt.h
*
* Descriptive Name: Thread Exception Constants and Structure Definitions.
*
* Copyright: IBM Corp. 1989 - 1992
*
* Function: This file provides constants and data structure
* definitions required by application programs to use 32 bit
* thread exceptions management facility.
*
* Notes: None.
*
*************************** END OF SPECIFICATION *******************/
#if __IBMC__ || __IBMCPP__
#pragma info( none )
#ifndef __CHKHDR__
#pragma info( none )
#endif
#pragma info( restore )
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __BSEXCPT__
#define __BSEXCPT__
/*
* User Exception Handler Return Codes:
*/
#define XCPT_CONTINUE_SEARCH 0x00000000 /* exception not handled */
#define XCPT_CONTINUE_EXECUTION 0xFFFFFFFF /* exception handled */
#define XCPT_CONTINUE_STOP 0x00716668 /* exception handled by */
/* debugger (VIA DosDebug) */
/*
* fHandlerFlags values (see ExceptionReportRecord):
*
* The user may only set (but not clear) the EH_NONCONTINUABLE flag.
* All other flags are set by the system.
*
*/
#define EH_NONCONTINUABLE 0x1 /* Noncontinuable exception */
#define EH_UNWINDING 0x2 /* Unwind is in progress */
#define EH_EXIT_UNWIND 0x4 /* Exit unwind is in progress */
#define EH_STACK_INVALID 0x8 /* Stack out of limits or unaligned */
#define EH_NESTED_CALL 0x10 /* Nested exception handler call */
/*
* Unwind all exception handlers (see DosUnwindException API)
*/
#define UNWIND_ALL 0
/*
* Exception values are 32 bit values layed out as follows:
*
* 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +---+-+-------------------------+-------------------------------+
* |Sev|C| Facility | Code |
* +---+-+-------------------------+-------------------------------+
*
* where
*
* Sev - is the severity code
* 00 - Success
* 01 - Informational
* 10 - Warning
* 11 - Error
*
* C - is the Customer code flag
*
* Facility - is the facility code
*
* Code - is the facility's status code
*
* Exceptions specific to OS/2 2.0 (e.g. XCPT_SIGNAL) will be marked
* with a facility code of 1.
*
* System defined exceptions have a facility code of zero.
*
* Each exception may also have several pieces of additional information.
* These are stored in the ExceptionInfo fields of the
* ExceptionReportRecord. They are documented here with the exceptions
* only for ease of reference.
*/
#define XCPT_FATAL_EXCEPTION 0xC0000000
#define XCPT_SEVERITY_CODE 0xC0000000
#define XCPT_CUSTOMER_CODE 0x20000000
#define XCPT_FACILITY_CODE 0x1FFF0000
#define XCPT_EXCEPTION_CODE 0x0000FFFF
/* Violation flags in ExceptionInfo */
#define XCPT_UNKNOWN_ACCESS 0x00000000 /* Unknown access */
#define XCPT_READ_ACCESS 0x00000001 /* Read access */
#define XCPT_WRITE_ACCESS 0x00000002 /* Write access */
#define XCPT_EXECUTE_ACCESS 0x00000004 /* Execute access */
#define XCPT_SPACE_ACCESS 0x00000008 /* Address space access */
#define XCPT_LIMIT_ACCESS 0x00000010 /* Address space limit violation */
#define XCPT_DATA_UNKNOWN 0xFFFFFFFF
/* Signal numbers for XCPT_SIGNAL */
#define XCPT_SIGNAL_INTR 1
#define XCPT_SIGNAL_KILLPROC 3
#define XCPT_SIGNAL_BREAK 4
#define XCPT_SIGNAL_APTERM 8
/* Portable non-fatal software generated exceptions */
#define XCPT_GUARD_PAGE_VIOLATION 0x80000001
/* ExceptionInfo[ 0 ] - Access Code: XCPT_READ_ACCESS
XCPT_WRITE_ACCESS */
/* ExceptionInfo[ 1 ] - FaultAddr */
#define XCPT_UNABLE_TO_GROW_STACK 0x80010001
/* Portable fatal hardware generated exceptions */
#define XCPT_DATATYPE_MISALIGNMENT 0xC000009E
/* ExceptionInfo[ 0 ] - Access Code: XCPT_READ_ACCESS
XCPT_WRITE_ACCESS */
/* ExceptionInfo[ 1 ] - Alignment */
/* ExceptionInfo[ 2 ] - FaultAddr */
#define XCPT_BREAKPOINT 0xC000009F
#define XCPT_SINGLE_STEP 0xC00000A0
#define XCPT_ACCESS_VIOLATION 0xC0000005
/* ExceptionInfo[ 0 ] - Access Code: XCPT_READ_ACCESS
XCPT_WRITE_ACCESS
XCPT_SPACE_ACCESS
XCPT_LIMIT_ACCESS
XCPT_UNKNOWN_ACCESS */
/* ExceptionInfo[ 1 ] - FaultAddr (XCPT_READ_ACCESS/XCPT_WRITE_ACCESS)
Selector (XCPT_SPACE_ACCESS)
-1 (XCPT_LIMIT_ACCESS) */
#define XCPT_ILLEGAL_INSTRUCTION 0xC000001C
#define XCPT_FLOAT_DENORMAL_OPERAND 0xC0000094
#define XCPT_FLOAT_DIVIDE_BY_ZERO 0xC0000095
#define XCPT_FLOAT_INEXACT_RESULT 0xC0000096
#define XCPT_FLOAT_INVALID_OPERATION 0xC0000097
#define XCPT_FLOAT_OVERFLOW 0xC0000098
#define XCPT_FLOAT_STACK_CHECK 0xC0000099
#define XCPT_FLOAT_UNDERFLOW 0xC000009A
#define XCPT_INTEGER_DIVIDE_BY_ZERO 0xC000009B
#define XCPT_INTEGER_OVERFLOW 0xC000009C
#define XCPT_PRIVILEGED_INSTRUCTION 0xC000009D
/* Portable fatal software generated exceptions */
#define XCPT_IN_PAGE_ERROR 0xC0000006
/* ExceptionInfo[ 0 ] - FaultAddr */
#define XCPT_PROCESS_TERMINATE 0xC0010001
#define XCPT_ASYNC_PROCESS_TERMINATE 0xC0010002
/* ExceptionInfo[ 0 ] - TID of 'terminator' thread */
#define XCPT_NONCONTINUABLE_EXCEPTION 0xC0000024
#define XCPT_INVALID_DISPOSITION 0xC0000025
/* Non-portable fatal exceptions */
#define XCPT_INVALID_LOCK_SEQUENCE 0xC000001D
#define XCPT_ARRAY_BOUNDS_EXCEEDED 0xC0000093
#define XCPT_B1NPX_ERRATA_02 0xC0010004
/* Misc exceptions */
#define XCPT_UNWIND 0xC0000026
#define XCPT_BAD_STACK 0xC0000027
#define XCPT_INVALID_UNWIND_TARGET 0xC0000028
/* Signal Exceptions */
#define XCPT_SIGNAL 0xC0010003
/* ExceptionInfo[ 0 ] - Signal Number */
/*
* ContextRecord
*
* This is the machine specific register contents for the thread
* at the time of the exception. Note that only the register sets
* specified by ContextFlags contain valid data. Conversely, only
* registers specified in ContextFlags will be restored if an exception
* is handled.
*/
/* The following flags control the contents of the CONTEXT structure. */
#define CONTEXT_CONTROL 0x00000001L /* SS:ESP, CS:EIP, EFLAGS, */
/* EBP */
#define CONTEXT_INTEGER 0x00000002L /* EAX, EBX, ECX, EDX, ESI, */
/* EDI */
#define CONTEXT_SEGMENTS 0x00000004L /* DS, ES, FS, GS */
#define CONTEXT_FLOATING_POINT 0x00000008L /* numeric coprocessor state */
#define CONTEXT_FULL (CONTEXT_CONTROL | CONTEXT_INTEGER | \
CONTEXT_SEGMENTS | CONTEXT_FLOATING_POINT)
/*XLATOFF */
#pragma pack(1)
/*XLATON */
typedef struct _fpreg /* coprocessor stack register element */
{
ULONG losig;
ULONG hisig;
USHORT signexp;
} FPREG , *PFPREG ;
#pragma pack()
struct _CONTEXT
{
/*
* The flags values within this flag control the contents of
* a ContextRecord.
*
* If the ContextRecord is used as an input parameter, then
* for each portion of the ContextRecord controlled by a flag
* whose value is set, it is assumed that that portion of the
* ContextRecord contains valid context. If the ContextRecord
* is being used to modify a thread's context, then only that
* portion of the thread's context will be modified.
*
* If the ContextRecord is used as an Input/Output parameter to
* capture the context of a thread, then only those portions of the
* thread's context corresponding to set flags will be returned.
*/
ULONG ContextFlags;
/*
* This section is specified/returned if the ContextFlags
* contains the flag CONTEXT_FLOATING_POINT.
*/
ULONG ctx_env[7];
FPREG ctx_stack[8];
/*
* This section is specified/returned if the ContextFlags
* contains the flag CONTEXT_SEGMENTS.
*/
ULONG ctx_SegGs;
ULONG ctx_SegFs;
ULONG ctx_SegEs;
ULONG ctx_SegDs;
/*
* This section is specified/returned if the ContextFlags
* contains the flag CONTEXT_INTEGER.
*/
ULONG ctx_RegEdi;
ULONG ctx_RegEsi;
ULONG ctx_RegEax;
ULONG ctx_RegEbx;
ULONG ctx_RegEcx;
ULONG ctx_RegEdx;
/*
* This section is specified/returned if the ContextFlags
* contains the flag CONTEXT_CONTROL.
*/
ULONG ctx_RegEbp;
ULONG ctx_RegEip;
ULONG ctx_SegCs;
ULONG ctx_EFlags;
ULONG ctx_RegEsp;
ULONG ctx_SegSs;
};
typedef struct _CONTEXT CONTEXTRECORD;
typedef struct _CONTEXT *PCONTEXTRECORD;
/*
* ExceptionReportRecord
*
* This structure contains machine independant information about an
* exception/unwind. No system exception will ever have more than
* EXCEPTION_MAXIMUM_PARAMETERS parameters. User exceptions are not
* bound to this limit.
*/
#define EXCEPTION_MAXIMUM_PARAMETERS 4 /* Enough for all system exceptions. */
struct _EXCEPTIONREPORTRECORD
{
ULONG ExceptionNum; /* exception number */
ULONG fHandlerFlags;
struct _EXCEPTIONREPORTRECORD *NestedExceptionReportRecord;
PVOID ExceptionAddress;
ULONG cParameters; /* Size of Exception Specific Info */
ULONG ExceptionInfo[EXCEPTION_MAXIMUM_PARAMETERS];
/* Exception Specfic Info */
};
typedef struct _EXCEPTIONREPORTRECORD EXCEPTIONREPORTRECORD;
typedef struct _EXCEPTIONREPORTRECORD *PEXCEPTIONREPORTRECORD;
/*
* ExceptionRegistrationRecord
*
* These are linked together to form a chain of exception handlers that
* will be dispatched to upon receipt of an exception.
*/
struct _EXCEPTIONREGISTRATIONRECORD;
typedef ULONG APIENTRY _ERR(PEXCEPTIONREPORTRECORD,
struct _EXCEPTIONREGISTRATIONRECORD *,
PCONTEXTRECORD,
PVOID);
typedef _ERR *ERR;
struct _EXCEPTIONREGISTRATIONRECORD
{
struct _EXCEPTIONREGISTRATIONRECORD * volatile prev_structure;
_ERR * volatile ExceptionHandler;
};
typedef struct _EXCEPTIONREGISTRATIONRECORD EXCEPTIONREGISTRATIONRECORD;
typedef struct _EXCEPTIONREGISTRATIONRECORD *PEXCEPTIONREGISTRATIONRECORD;
/* End of exception chain marker. */
#define END_OF_CHAIN ((PEXCEPTIONREGISTRATIONRECORD) -1)
#pragma pack()
#endif /* __BSEXCPT__ */
#ifdef __cplusplus
}
#endif
#if __IBMC__ || __IBMCPP__
#pragma info( none )
#ifndef __CHKHDR__
#pragma info( restore )
#endif
#pragma info( restore )
#endif