exception.h

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#ifndef __WINE_WINE_EXCEPTION_H
#define __WINE_WINE_EXCEPTION_H
 
#include <setjmp.h>
#include <intrin.h>
#ifdef __USE_PSEH2__
# include <pseh/pseh2.h>
# include <pseh/excpt.h>
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* Win32 seems to use the same flags as ExceptionFlags in an EXCEPTION_RECORD */
#define EH_NONCONTINUABLE   0x01
#define EH_UNWINDING        0x02
#define EH_EXIT_UNWIND      0x04
#define EH_STACK_INVALID    0x08
#define EH_NESTED_CALL      0x10
#define EH_TARGET_UNWIND    0x20
#define EH_COLLIDED_UNWIND  0x40
 
#define EXCEPTION_WINE_STUB       0x80000100
#define EXCEPTION_WINE_ASSERTION  0x80000101
 
#define EXCEPTION_VM86_INTx       0x80000110
#define EXCEPTION_VM86_STI        0x80000111
#define EXCEPTION_VM86_PICRETURN  0x80000112
 
#ifndef _RTLTYPES_H
struct _EXCEPTION_REGISTRATION_RECORD;
 
typedef
DWORD
(*PEXCEPTION_HANDLER)(
    struct _EXCEPTION_RECORD*,
    struct _EXCEPTION_REGISTRATION_RECORD *,
    struct _CONTEXT*,
    struct _EXCEPTION_REGISTRATION_RECORD**);
 
typedef struct _EXCEPTION_REGISTRATION_RECORD EXCEPTION_REGISTRATION_RECORD, *PEXCEPTION_REGISTRATION_RECORD;
 
struct _EXCEPTION_REGISTRATION_RECORD
{
    struct _EXCEPTION_REGISTRATION_RECORD * Prev;
    PEXCEPTION_HANDLER Handler;
};
#else
typedef struct _WINE_EXCEPTION_REGISTRATION_RECORD
{
    PVOID Prev;
    PEXCEPTION_ROUTINE Handler;
} WINE_EXCEPTION_REGISTRATION_RECORD, *PWINE_EXCEPTION_REGISTRATION_RECORD;
 
#define _EXCEPTION_REGISTRATION_RECORD _WINE_EXCEPTION_REGISTRATION_RECORD
#define EXCEPTION_REGISTRATION_RECORD WINE_EXCEPTION_REGISTRATION_RECORD
#define PEXCEPTION_REGISTRATION_RECORD PWINE_EXCEPTION_REGISTRATION_RECORD
#endif
 
#ifdef __USE_PSEH2__
#define __TRY _SEH2_TRY
#define __EXCEPT(func) _SEH2_EXCEPT(func(_SEH2_GetExceptionInformation()))
#define __EXCEPT_CTX(func, ctx) _SEH2_EXCEPT((func)(GetExceptionInformation(), ctx))
#define __EXCEPT_PAGE_FAULT _SEH2_EXCEPT(_SEH2_GetExceptionCode() == STATUS_ACCESS_VIOLATION)
#define __EXCEPT_ALL _SEH2_EXCEPT(_SEH_EXECUTE_HANDLER)
#define __ENDTRY _SEH2_END
#define __FINALLY(func) _SEH2_FINALLY { func(!_SEH2_AbnormalTermination()); }
#define __FINALLY_CTX(func, ctx) _SEH2_FINALLY { func(!_SEH2_AbnormalTermination(), ctx); }; _SEH2_END
 
#ifndef GetExceptionCode
#define GetExceptionCode() _SEH2_GetExceptionCode()
#endif
 
#ifndef GetExceptionInformation
#define GetExceptionInformation() _SEH2_GetExceptionInformation()
#endif
 
#ifndef AbnormalTermination
#define AbnormalTermination() _SEH2_AbnormalTermination()
#endif
#else
#define __TRY __try
#define __EXCEPT(func) __except(func(GetExceptionInformation()))
#define __EXCEPT_CTX(func, ctx) __except((func)(GetExceptionInformation(), ctx))
#define __EXCEPT_PAGE_FAULT __except(GetExceptionCode() == STATUS_ACCESS_VIOLATION)
#define __EXCEPT_ALL __except(1)
#define __ENDTRY
#define __FINALLY(func) __finally { func(!AbnormalTermination()); }
#define __FINALLY_CTX(func, ctx) __finally { func(!AbnormalTermination(), ctx); }
#endif
 
#if defined(__MINGW32__) || defined(__CYGWIN__)
#define sigjmp_buf jmp_buf
#define sigsetjmp(buf,sigs) setjmp(buf)
#define siglongjmp(buf,val) longjmp(buf,val)
#endif
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4733)
#endif
 
static inline EXCEPTION_REGISTRATION_RECORD *__wine_push_frame( EXCEPTION_REGISTRATION_RECORD *frame )
{
#ifdef __i386__
    frame->Prev = (struct _EXCEPTION_REGISTRATION_RECORD *)__readfsdword(0);
    __writefsdword(0, (unsigned long)frame);
    return frame->Prev;
#else
    NT_TIB *teb = (NT_TIB *)NtCurrentTeb();
    frame->Prev = teb->ExceptionList;
    teb->ExceptionList = (PVOID)frame;
    return frame->Prev;
#endif
}
 
static inline EXCEPTION_REGISTRATION_RECORD *__wine_pop_frame( EXCEPTION_REGISTRATION_RECORD *frame )
{
#ifdef __i386__
    __writefsdword(0, (unsigned long)frame->Prev);
    return frame->Prev;
#else
    NT_TIB *teb = (NT_TIB *)NtCurrentTeb();
    frame->Prev = teb->ExceptionList;
    teb->ExceptionList = (PVOID)frame;
    return frame->Prev;
#endif
}
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
extern void __wine_enter_vm86( CONTEXT *context );
 
#ifdef __cplusplus
}
#endif
 
#endif