win32/include/excpt.h

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the w64 mingw-runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER within this package.
   5  */
   6 #ifndef _INC_EXCPT
   7 #define _INC_EXCPT
   8
   9 #include <_mingw.h>
  10
  11 #pragma pack(push,_CRT_PACKING)
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17   struct _EXCEPTION_POINTERS;
  18
  19 #ifndef EXCEPTION_DISPOSITION
  20 #define EXCEPTION_DISPOSITION   int
  21 #endif
  22 #define ExceptionContinueExecution 0
  23 #define ExceptionContinueSearch 1
  24 #define ExceptionNestedException 2
  25 #define ExceptionCollidedUnwind 3
  26
  27 #if (defined(_X86_) && !defined(__x86_64))
  28   struct _EXCEPTION_RECORD;
  29   struct _CONTEXT;
  30
  31   EXCEPTION_DISPOSITION __cdecl _except_handler(struct _EXCEPTION_RECORD *_ExceptionRecord,void *_EstablisherFrame,struct _CONTEXT *_ContextRecord,void *_DispatcherContext);
  32 #elif defined(__ia64__)
  33
  34   typedef struct _EXCEPTION_POINTERS *Exception_info_ptr;
  35   struct _EXCEPTION_RECORD;
  36   struct _CONTEXT;
  37   struct _DISPATCHER_CONTEXT;
  38
  39   _CRTIMP EXCEPTION_DISPOSITION __cdecl __C_specific_handler (struct _EXCEPTION_RECORD *_ExceptionRecord,unsigned __int64 _MemoryStackFp,unsigned __int64 _BackingStoreFp,struct _CONTEXT *_ContextRecord,struct _DISPATCHER_CONTEXT *_DispatcherContext,unsigned __int64 _GlobalPointer);
  40 #elif defined(__x86_64)
  41
  42   struct _EXCEPTION_RECORD;
  43   struct _CONTEXT;
  44 #endif
  45
  46 #define GetExceptionCode _exception_code
  47 #define exception_code _exception_code
  48 #define GetExceptionInformation (struct _EXCEPTION_POINTERS *)_exception_info
  49 #define exception_info (struct _EXCEPTION_POINTERS *)_exception_info
  50 #define AbnormalTermination _abnormal_termination
  51 #define abnormal_termination _abnormal_termination
  52
  53   unsigned long __cdecl _exception_code(void);
  54   void *__cdecl _exception_info(void);
  55   int __cdecl _abnormal_termination(void);
  56
  57 #define EXCEPTION_EXECUTE_HANDLER 1
  58 #define EXCEPTION_CONTINUE_SEARCH 0
  59 #define EXCEPTION_CONTINUE_EXECUTION -1
  60
  61   /* CRT stuff */
  62   typedef void (__cdecl * _PHNDLR)(int);
  63
  64   struct _XCPT_ACTION {
  65     unsigned long XcptNum;
  66     int SigNum;
  67     _PHNDLR XcptAction;
  68   };
  69
  70   extern struct _XCPT_ACTION _XcptActTab[];
  71   extern int _XcptActTabCount;
  72   extern int _XcptActTabSize;
  73   extern int _First_FPE_Indx;
  74   extern int _Num_FPE;
  75
  76   int __cdecl __CppXcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
  77   int __cdecl _XcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
  78
  79   /*
  80   * The type of function that is expected as an exception handler to be
  81   * installed with _try1.
  82   */
  83   typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
  84
  85 #ifndef HAVE_NO_SEH
  86   /*
  87   * This is not entirely necessary, but it is the structure installed by
  88   * the _try1 primitive below.
  89   */
  90   typedef struct _EXCEPTION_REGISTRATION {
  91     struct _EXCEPTION_REGISTRATION *prev;
  92     EXCEPTION_DISPOSITION (*handler)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
  93   } EXCEPTION_REGISTRATION, *PEXCEPTION_REGISTRATION;
  94
  95   typedef EXCEPTION_REGISTRATION EXCEPTION_REGISTRATION_RECORD;
  96   typedef PEXCEPTION_REGISTRATION PEXCEPTION_REGISTRATION_RECORD;
  97 #endif
  98
  99 #if (defined(_X86_) && !defined(__x86_64))
 100 #define __try1(pHandler) \
 101   __asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
 102
 103 #define __except1       \
 104   __asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
 105   : : : "%eax");
 106 #elif defined(__x86_64)
 107 #define __try1(pHandler) \
 108   __asm__ ("pushq %0;pushq %%gs:0;movq %%rsp,%%gs:0;" : : "g" (pHandler));
 109
 110 #define __except1       \
 111   __asm__ ("movq (%%rsp),%%rax;movq %%rax,%%gs:0;addq $16,%%rsp;" \
 112   : : : "%rax");
 113 #else
 114 #define __try1(pHandler)
 115 #define __except1
 116 #endif
 117
 118 #ifdef __cplusplus
 119 }
 120 #endif
 121
 122 #pragma pack(pop)
 123 #endif