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248 lines
8.6 KiB
248 lines
8.6 KiB
/***
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*trnsctrl.h - routines that do special transfer of control
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*
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* Copyright (c) 1993-1995, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Declaration of routines that do special transfer of control.
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* (and a few other implementation-dependant things).
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*
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* Implementations of these routines are in assembly (very implementation
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* dependant). Currently, these are implemented as naked functions with
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* inline asm.
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*
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* [Internal]
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*
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*Revision History:
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* 05-24-93 BS Module created.
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* 03-03-94 TL Added Mips (_M_MRX000 >= 4000) changes
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* 09-02-94 SKS This header file added.
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* 09-13-94 GJF Merged in changes from/for DEC Alpha (from Al Doser,
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* dated 6/21).
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* 10-09-94 BWT Add unknown machine merge from John Morgan
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* 02-14-95 CFW Clean up Mac merge.
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* 03-29-95 CFW Add error message to internal headers.
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* 04-11-95 JWM _CallSettingFrame() is now extern "C".
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* 12-14-95 JWM Add "#pragma once".
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*
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****/
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#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
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#pragma once
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#endif
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#ifndef _INC_TRNSCTRL
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#define _INC_TRNSCTRL
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#ifndef _CRTBLD
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/*
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* This is an internal C runtime header file. It is used when building
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* the C runtimes only. It is not to be used as a public header file.
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*/
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#error ERROR: Use of C runtime library internal header file.
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#endif /* _CRTBLD */
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#if _M_MRX000 >= 4000 /*IFSTRIP=IGN*/
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typedef struct FrameInfo {
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PULONG pEstablisherFrame;
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PRUNTIME_FUNCTION pFunctionEntry;
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CONTEXT* pExitContext;
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struct FrameInfo *pNext;
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} FRAMEINFO;
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extern FRAMEINFO* _CreateFrameInfo(FRAMEINFO*, DispatcherContext*, PULONG, CONTEXT*);
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extern CONTEXT* _FindAndUnlinkFrame(PVOID, FRAMEINFO*);
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extern VOID _JumpToContinuation( ULONG, CONTEXT*);
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extern PVOID _OffsetToAddress( ptrdiff_t, PULONG, ULONG );
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extern "C" VOID _UnwindNestedFrames( EHRegistrationNode*, EHExceptionRecord*, CONTEXT* );
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extern "C" VOID _NLG_Notify( PVOID, PVOID );
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extern "C" PVOID _CallSettingFrame( PVOID, PULONG, ULONG );
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extern "C" PVOID _CallCatchBlock2( EHRegistrationNode*, FuncInfo*, PVOID, ULONG, ULONG );
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extern "C" BOOL _CallSETranslator( EHExceptionRecord*, EHRegistrationNode*, CONTEXT*, DispatcherContext*, FuncInfo*, ULONG, EHRegistrationNode*, ULONG);
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extern "C" VOID _EHRestoreContext(CONTEXT* pContext);
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extern "C" CONTEXT* _GetUnwindContext(VOID);
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extern "C" VOID _MoveContext(CONTEXT* pTarget, CONTEXT* pSource);
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#define _CallMemberFunction0(pthis, pmfn) (*(VOID(*)(PVOID))pmfn)(pthis)
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#define _CallMemberFunction1(pthis, pmfn, pthat) (*(VOID(*)(PVOID,PVOID))pmfn)(pthis,pthat)
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#define _CallMemberFunction2(pthis, pmfn, pthat, val2 ) (*(VOID(*)(PVOID,PVOID,int))pmfn)(pthis,pthat,val2)
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#define UNWINDHELP(base,offset,index) (((char*)base) + (int)offset)[index]
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#elif defined(_M_ALPHA)
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//
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// For Debugger handling of stepping with non-local gotos
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//
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extern "C" VOID _NLG_Notify( PVOID, PVOID, ULONG );
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//
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// For calling funclets (including the catch)
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//
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extern "C" void * _CallSettingFrame (
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void *funcAddress,
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void *realFP,
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unsigned long NLGCode
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);
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extern void _JumpToContinuation(
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void *TargetIp, // The target address
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EHRegistrationNode *TargetFrame // The target virtual frame ptr
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);
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//
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// For calling member functions:
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//
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extern "C" void _CallMemberFunction0( void *pthis, void *pmfn );
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extern "C" void _CallMemberFunction1( void *pthis, void *pmfn, void *pthat );
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extern "C" void _CallMemberFunction2( void *pthis, void *pmfn, void *pthat, int val2 );
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//
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// Translate an frame relative offset to a hard address based on address of
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// a frame pointer (real or virtual).
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//
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#define OffsetToAddress( off, FP ) (void*)(((char*)FP) + off)
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//
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// Call RtlUnwind in a returning fashion
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//
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extern "C" VOID _UnwindNestedFrames (
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IN EHRegistrationNode *TargetFrame,
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IN EHExceptionRecord *ExceptionRecord
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);
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//
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// Ditto the SE translator
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//
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BOOL _CallSETranslator( EHExceptionRecord*, EHRegistrationNode*, void*,
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DispatcherContext*, FuncInfo*, int,
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EHRegistrationNode*);
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#elif defined(_M_IX86) // x86
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//
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// For calling funclets (including the catch)
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//
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extern "C" void * __stdcall _CallSettingFrame( void *, EHRegistrationNode *, unsigned long );
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extern void __stdcall _JumpToContinuation( void *, EHRegistrationNode * );
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//
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// For calling member functions:
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//
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extern void __stdcall _CallMemberFunction0( void *pthis, void *pmfn );
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extern void __stdcall _CallMemberFunction1( void *pthis, void *pmfn, void *pthat );
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extern void __stdcall _CallMemberFunction2( void *pthis, void *pmfn, void *pthat, int val2 );
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//
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// Translate an ebp-relative offset to a hard address based on address of
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// registration node:
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//
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#if !CC_EXPLICITFRAME
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#define OffsetToAddress( off, RN ) \
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(void*)((char*)RN \
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+ FRAME_OFFSET \
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+ off)
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#else
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#define OffsetToAddress( off, RN ) (void*)(((char*)RN->frame) + off)
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#endif
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//
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// Call RtlUnwind in a returning fassion
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//
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extern void __stdcall _UnwindNestedFrames( EHRegistrationNode*, EHExceptionRecord* );
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//
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// Do the nitty-gritty of calling the catch block safely
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//
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void *_CallCatchBlock2( EHRegistrationNode *, FuncInfo*, void*, int, unsigned long );
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//
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// Ditto the SE translator
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//
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BOOL _CallSETranslator( EHExceptionRecord*, EHRegistrationNode*, void*, DispatcherContext*, FuncInfo*, int, EHRegistrationNode*);
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#elif defined(_M_MPPC)
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extern "C" {
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extern void * __cdecl _CallSettingFrame( void *, EHRegistrationNode * );
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extern void __cdecl _JumpToContinuation( void *, EHRegistrationNode *, unsigned int );
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//
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// For calling member functions:
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//
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extern void __cdecl _CallMemberFunction0( void *pthis, void *pmfn, void *);
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extern void __cdecl _CallMemberFunction1( void *pthis, void *pmfn, void *pthat, void *);
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extern void __cdecl _CallMemberFunction2( void *pthis, void *pmfn, void *pthat, unsigned int fvb, void *);
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}
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extern void DestructExceptionObject( EHExceptionRecord*, BOOLEAN, void * );
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extern void __cdecl _UnwindNestedFrames( EHRegistrationNode*, EHExceptionRecord* );
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void __cdecl MacExceptionDispatch(PEXCEPTION_RECORD);
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#define OffsetToAddress( off, RN ) (void*)((char*)RN + off)
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#elif defined(_M_M68K)
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//
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// For calling funclets (including the catch)
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//
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extern void * __cdecl CallSettingFrame( void *, EHRegistrationNode * );
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extern void * __stdcall CallSettingFrameCatch( void *, EHRegistrationNode * );
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extern void __cdecl JumpToContinuation( void *, EHRegistrationNode * );
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extern void DestructExceptionObject( EHExceptionRecord*, BOOLEAN );
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//
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// For calling member functions:
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//
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extern void __cdecl CallMemberFunction0( void *pthis, void *pmfn );
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extern void __cdecl CallMemberFunction1( void *pthis, void *pmfn, void *pthat );
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extern void __cdecl CallMemberFunction2( void *pthis, void *pmfn, void *pthat, unsigned int fvb );
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extern void __cdecl UnwindNestedFrames( EHRegistrationNode*, EHExceptionRecord* );
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void __cdecl MacExceptionDispatch(PEXCEPTION_RECORD);
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void * __cdecl OffsetToAddress( ptrdiff_t, EHRegistrationNode* );
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#elif defined(_M_PPC)
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typedef struct FrameInfo {
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PULONG pEstablisherFrame;
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ULONG ControlPc;
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PRUNTIME_FUNCTION pFunctionEntry;
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CONTEXT *pExitContext;
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__ehstate_t state;
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struct FrameInfo *pNext;
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} FRAMEINFO;
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extern "C" PVOID _CallSettingFrame(PVOID, PULONG, ULONG);
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extern "C" PVOID _GetStackLimits(PULONG, PULONG);
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extern EHRegistrationNode *_GetEstablisherFrame(DispatcherContext *, int *);
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extern FRAMEINFO *_CreateFrameInfo(FRAMEINFO *, DispatcherContext *, PULONG, CONTEXT *, __ehstate_t);
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extern "C" VOID _JumpToContinuation(ULONG, CONTEXT *);
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extern "C" VOID _UnwindNestedFrames(EHRegistrationNode *, EHExceptionRecord *, CONTEXT *);
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extern CONTEXT *_FindAndUnlinkFrame(PVOID, FRAMEINFO *);
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extern FRAMEINFO *_FindFrameInfo(ULONG, FRAMEINFO *);
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extern VOID __FrameUnwindToEmptyState(EHRegistrationNode *, DispatcherContext *, FuncInfo *);
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extern BOOL _UnwindNestedCatch(EHRegistrationNode *, DispatcherContext *);
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extern BOOL _CallSETranslator(EHExceptionRecord *, EHRegistrationNode *, CONTEXT *, DispatcherContext *, FuncInfo *, ULONG, EHRegistrationNode *);
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#define OffsetToAddress(off, pRN) \
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((void *)((char *)(pRN) + (off)))
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#define _CallMemberFunction0(pthis, pmfn) \
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(*(VOID(*)(PVOID))(pmfn))(pthis)
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#define _CallMemberFunction1(pthis, pmfn, pthat) \
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(*(VOID(*)(PVOID, PVOID))(pmfn))(pthis, pthat)
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#define _CallMemberFunction2(pthis, pmfn, pthat, val2) \
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(*(VOID(*)(PVOID, PVOID, int))(pmfn))(pthis, pthat, val2)
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#define FRAME_FLAG 0xDEAD
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#define SET_UNWIND_FRAME(pRN) (((PULONG)pRN)[2] = FRAME_FLAG)
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#define CHECK_UNWIND_FRAME(pRN) (((PULONG)pRN)[2] == FRAME_FLAG)
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#else
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#pragma message("Special transfer of control routines not defined for this platform")
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#endif
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#endif /* _INC_TRNSCTRL */
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