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478317abcb
This is used with Clang, which does have native SEH, but it's broken and can cause the compiler to crash. Previously some code was not handling this and instead used native SEH for clang. Fix this by always using _SEH2_* macros instead of relying on __USE_PSEH2__ to be defined. Try to improve things
159 lines
4.3 KiB
C
159 lines
4.3 KiB
C
/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the w64 mingw-runtime package.
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* No warranty is given; refer to the file DISCLAIMER within this package.
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*/
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#ifndef _INC_EXCPT
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#define _INC_EXCPT
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#include <vcruntime.h>
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#if !defined(RC_INVOKED)
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#include <pseh/pseh2.h>
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#endif
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#pragma pack(push,_CRT_PACKING)
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum _EXCEPTION_DISPOSITION
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{
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ExceptionContinueExecution,
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ExceptionContinueSearch,
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ExceptionNestedException,
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ExceptionCollidedUnwind,
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} EXCEPTION_DISPOSITION;
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#if (defined(_X86_) && !defined(__x86_64))
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struct _EXCEPTION_RECORD;
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struct _CONTEXT;
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EXCEPTION_DISPOSITION
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__cdecl
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_except_handler(
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_In_ struct _EXCEPTION_RECORD *_ExceptionRecord,
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_In_ void *_EstablisherFrame,
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_Inout_ struct _CONTEXT *_ContextRecord,
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_Inout_ void *_DispatcherContext);
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#elif defined(__ia64__)
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typedef struct _EXCEPTION_POINTERS *Exception_info_ptr;
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struct _EXCEPTION_RECORD;
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struct _CONTEXT;
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struct _DISPATCHER_CONTEXT;
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__MINGW_EXTENSION
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_CRTIMP
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EXCEPTION_DISPOSITION
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__cdecl
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__C_specific_handler(
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_In_ struct _EXCEPTION_RECORD *_ExceptionRecord,
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_In_ unsigned __int64 _MemoryStackFp,
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_In_ unsigned __int64 _BackingStoreFp,
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_Inout_ struct _CONTEXT *_ContextRecord,
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_Inout_ struct _DISPATCHER_CONTEXT *_DispatcherContext,
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_In_ unsigned __int64 _GlobalPointer);
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#elif defined(__x86_64) || defined(_M_ARM) || defined(_M_ARM64)
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struct _EXCEPTION_RECORD;
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struct _CONTEXT;
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struct _DISPATCHER_CONTEXT;
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_CRTIMP
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EXCEPTION_DISPOSITION
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__cdecl
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__C_specific_handler(
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_In_ struct _EXCEPTION_RECORD *_ExceptionRecord,
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_In_ void *_EstablisherFrame,
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_Inout_ struct _CONTEXT *_ContextRecord,
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_Inout_ struct _DISPATCHER_CONTEXT *_DispatcherContext);
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#endif
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#if (defined(_MSC_VER) || (defined(__clang__) && defined(__SEH__))) && !defined(_exception_code)
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unsigned long __cdecl _exception_code(void);
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void *__cdecl _exception_info(void);
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int __cdecl _abnormal_termination(void);
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#endif
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#define GetExceptionCode _exception_code
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#define exception_code _exception_code
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#define GetExceptionInformation (struct _EXCEPTION_POINTERS *)_exception_info
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#define exception_info (struct _EXCEPTION_POINTERS *)_exception_info
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#define AbnormalTermination _abnormal_termination
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#define abnormal_termination _abnormal_termination
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#define EXCEPTION_EXECUTE_HANDLER 1
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#define EXCEPTION_CONTINUE_SEARCH 0
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#define EXCEPTION_CONTINUE_EXECUTION -1
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#if 0
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/* CRT stuff */
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typedef void (__cdecl * _PHNDLR)(int);
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struct _XCPT_ACTION {
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unsigned long XcptNum;
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int SigNum;
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_PHNDLR XcptAction;
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};
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extern struct _XCPT_ACTION _XcptActTab[];
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extern int _XcptActTabCount;
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extern int _XcptActTabSize;
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extern int _First_FPE_Indx;
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extern int _Num_FPE;
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int __cdecl __CppXcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
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int __cdecl _XcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
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/*
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* The type of function that is expected as an exception handler to be
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* installed with _try1.
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*/
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typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
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#ifndef HAVE_NO_SEH
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/*
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* This is not entirely necessary, but it is the structure installed by
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* the _try1 primitive below.
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*/
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typedef struct _EXCEPTION_REGISTRATION {
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struct _EXCEPTION_REGISTRATION *prev;
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EXCEPTION_DISPOSITION (*handler)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
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} EXCEPTION_REGISTRATION, *PEXCEPTION_REGISTRATION;
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typedef EXCEPTION_REGISTRATION EXCEPTION_REGISTRATION_RECORD;
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typedef PEXCEPTION_REGISTRATION PEXCEPTION_REGISTRATION_RECORD;
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#endif
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#if (defined(_X86_) && !defined(__x86_64))
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#define __try1(pHandler) \
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__asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
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#define __except1 \
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__asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
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: : : "%eax");
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#elif defined(__x86_64)
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#define __try1(pHandler) \
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__asm__ ("pushq %0;pushq %%gs:0;movq %%rsp,%%gs:0;" : : "g" (pHandler));
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#define __except1 \
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__asm__ ("movq (%%rsp),%%rax;movq %%rax,%%gs:0;addq $16,%%rsp;" \
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: : : "%rax");
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#else
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#define __try1(pHandler)
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#define __except1
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#endif
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#endif // 0
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#ifdef __cplusplus
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}
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#endif
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#pragma pack(pop)
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#endif
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