blob: c73e08d296135d81f32a79733c2f1a5bb722ac12 (
plain) (
tree)
|
|
/***
*excpt.h - defines exception values, types and routines
*
* Copyright (c) 1990-1993, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file contains the definitions and prototypes for the compiler-
* dependent intrinsics, support functions and keywords which implement
* the structured exception handling extensions.
*
*Revision History:
* 11-01-91 GJF Module created. Basically a synthesis of except.h
* and excpt.h and intended as a replacement for
* both.
* 12-13-91 GJF Fixed build for Win32.
* 05-05-92 SRW C8 wants C6 style names for now.
* 07-20-92 SRW Moved from winxcpt.h to excpt.h
* 08-06-92 GJF Function calling type and variable type macros. Also
* revised compiler/target processor macro usage.
* 11-09-92 GJF Fixed preprocessing conditionals for MIPS. Also,
* fixed some compiler warning (fix from/for RichardS).
* 01-03-93 SRW Fold in ALPHA changes
* 01-04-93 SRW Add leave keyword for x86
* 01-09-93 SRW Remove usage of MIPS and ALPHA to conform to ANSI
* Use _MIPS_ and _ALPHA_ instead.
* 01-21-93 GJF Removed support for C6-386's _cdecl.
* 02-18-93 GJF Changed _try to __try, etc.
* 10-04-93 SRW Fix ifdefs for MIPS and ALPHA to only check for _M_?????? defines
*
****/
#ifndef _INC_EXCPT
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _INTERNAL_IFSTRIP_
#include <cruntime.h>
#endif /* _INTERNAL_IFSTRIP_ */
/*
* Conditional macro definition for function calling type and variable type
* qualifiers.
*/
#if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
/*
* Definitions for MS C8-32 (386/486) compiler
*/
#define _CRTAPI1 __cdecl
#define _CRTAPI2 __cdecl
#else
/*
* Other compilers (e.g., MIPS)
*/
#define _CRTAPI1
#define _CRTAPI2
#endif
/*
* Exception disposition return values.
*/
typedef enum _EXCEPTION_DISPOSITION {
ExceptionContinueExecution,
ExceptionContinueSearch,
ExceptionNestedException,
ExceptionCollidedUnwind
} EXCEPTION_DISPOSITION;
/*
* Prototype for SEH support function.
*/
#ifdef _M_IX86
/*
* Declarations to keep MS C 8 (386/486) compiler happy
*/
struct _EXCEPTION_RECORD;
struct _CONTEXT;
EXCEPTION_DISPOSITION _CRTAPI2 _except_handler (
struct _EXCEPTION_RECORD *ExceptionRecord,
void * EstablisherFrame,
struct _CONTEXT *ContextRecord,
void * DispatcherContext
);
#elif defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC)
/*
* Declarations to keep MIPS, ALPHA, and PPC compiler happy
*/
typedef struct _EXCEPTION_POINTERS *Exception_info_ptr;
struct _EXCEPTION_RECORD;
struct _CONTEXT;
struct _DISPATCHER_CONTEXT;
EXCEPTION_DISPOSITION __C_specific_handler (
struct _EXCEPTION_RECORD *ExceptionRecord,
void *EstablisherFrame,
struct _CONTEXT *ContextRecord,
struct _DISPATCHER_CONTEXT *DispatcherContext
);
#endif
/*
* Keywords and intrinsics for SEH
*/
#ifdef _MSC_VER
#if !defined(__cplusplus)
#define try __try
#define except __except
#define finally __finally
#define leave __leave
#endif
#define GetExceptionCode() (_exception_code())
#define exception_code() (_exception_code())
#define GetExceptionInformation() ((struct _EXCEPTION_POINTERS *)_exception_info())
#define exception_info() ((struct _EXCEPTION_POINTERS *)_exception_info())
#define AbnormalTermination() (_abnormal_termination())
#define abnormal_termination() (_abnormal_termination())
unsigned long _CRTAPI1 _exception_code(void);
void * _CRTAPI1 _exception_info(void);
int _CRTAPI1 _abnormal_termination(void);
#endif
/*
* Legal values for expression in except().
*/
#define EXCEPTION_EXECUTE_HANDLER 1
#define EXCEPTION_CONTINUE_SEARCH 0
#define EXCEPTION_CONTINUE_EXECUTION -1
#ifndef _INTERNAL_IFSTRIP_
/*
* for convenience, define a type name for a pointer to signal-handler
*/
typedef void (_CRTAPI1 * _PHNDLR)(int);
/*
* Exception-action table used by the C runtime to identify and dispose of
* exceptions corresponding to C runtime errors or C signals.
*/
struct _XCPT_ACTION {
/*
* exception code or number. defined by the host OS.
*/
unsigned long XcptNum;
/*
* signal code or number. defined by the C runtime.
*/
int SigNum;
/*
* exception action code. either a special code or the address of
* a handler function. always determines how the exception filter
* should dispose of the exception.
*/
_PHNDLR XcptAction;
};
extern struct _XCPT_ACTION _CRTVAR1 _XcptActTab[];
/*
* number of entries in the exception-action table
*/
extern int _CRTVAR1 _XcptActTabCount;
/*
* size of exception-action table (in bytes)
*/
extern int _CRTVAR1 _XcptActTabSize;
/*
* return values and prototype for the exception filter function used in the
* C startup
*/
int _CRTAPI1 _XcptFilter(unsigned long, struct _EXCEPTION_POINTERS *);
#endif /* _INTERNAL_IFSTRIP_ */
#ifdef __cplusplus
}
#endif
#define _INC_EXCPT
#endif /* _INC_EXCPT */
|
