include/crt/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 <crtdefs.h>
  10
  11 #pragma pack(push,_CRT_PACKING)
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17 typedef enum _EXCEPTION_DISPOSITION
  18 {
  19     ExceptionContinueExecution,
  20     ExceptionContinueSearch,
  21     ExceptionNestedException,
  22     ExceptionCollidedUnwind,
  23 } EXCEPTION_DISPOSITION;
  24
  25 #if (defined(_X86_) && !defined(__x86_64))
  26   struct _EXCEPTION_RECORD;
  27   struct _CONTEXT;
  28
  29   EXCEPTION_DISPOSITION __cdecl _except_handler(struct _EXCEPTION_RECORD *_ExceptionRecord,void *_EstablisherFrame,struct _CONTEXT *_ContextRecord,void *_DispatcherContext);
  30 #elif defined(__ia64__)
  31
  32   typedef struct _EXCEPTION_POINTERS *Exception_info_ptr;
  33   struct _EXCEPTION_RECORD;
  34   struct _CONTEXT;
  35   struct _DISPATCHER_CONTEXT;
  36
  37   __MINGW_EXTENSION _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);
  38 #elif defined(__x86_64)
  39
  40   struct _EXCEPTION_RECORD;
  41   struct _CONTEXT;
  42   struct _DISPATCHER_CONTEXT;
  43
  44   _CRTIMP EXCEPTION_DISPOSITION __cdecl __C_specific_handler (struct _EXCEPTION_RECORD *_ExceptionRecord,void *_EstablisherFrame,struct _CONTEXT *_ContextRecord,struct _DISPATCHER_CONTEXT *_DispatcherContext);
  45 #endif
  46
  47 #ifdef _MSC_VER
  48 #define GetExceptionCode _exception_code
  49 #define exception_code _exception_code
  50 #define GetExceptionInformation (struct _EXCEPTION_POINTERS *)_exception_info
  51 #define exception_info (struct _EXCEPTION_POINTERS *)_exception_info
  52 #define AbnormalTermination _abnormal_termination
  53 #define abnormal_termination _abnormal_termination
  54   unsigned long __cdecl _exception_code(void);
  55   void *__cdecl _exception_info(void);
  56   int __cdecl _abnormal_termination(void);
  57 #endif
  58
  59 #define EXCEPTION_EXECUTE_HANDLER 1
  60 #define EXCEPTION_CONTINUE_SEARCH 0
  61 #define EXCEPTION_CONTINUE_EXECUTION -1
  62
  63 #if 0
  64   /* CRT stuff */
  65   typedef void (__cdecl * _PHNDLR)(int);
  66
  67   struct _XCPT_ACTION {
  68     unsigned long XcptNum;
  69     int SigNum;
  70     _PHNDLR XcptAction;
  71   };
  72
  73   extern struct _XCPT_ACTION _XcptActTab[];
  74   extern int _XcptActTabCount;
  75   extern int _XcptActTabSize;
  76   extern int _First_FPE_Indx;
  77   extern int _Num_FPE;
  78
  79   int __cdecl __CppXcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
  80   int __cdecl _XcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
  81
  82   /*
  83   * The type of function that is expected as an exception handler to be
  84   * installed with _try1.
  85   */
  86   typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
  87
  88 #ifndef HAVE_NO_SEH
  89   /*
  90   * This is not entirely necessary, but it is the structure installed by
  91   * the _try1 primitive below.
  92   */
  93   typedef struct _EXCEPTION_REGISTRATION {
  94     struct _EXCEPTION_REGISTRATION *prev;
  95     EXCEPTION_DISPOSITION (*handler)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
  96   } EXCEPTION_REGISTRATION, *PEXCEPTION_REGISTRATION;
  97
  98   typedef EXCEPTION_REGISTRATION EXCEPTION_REGISTRATION_RECORD;
  99   typedef PEXCEPTION_REGISTRATION PEXCEPTION_REGISTRATION_RECORD;
 100 #endif
 101
 102 #if (defined(_X86_) && !defined(__x86_64))
 103 #define __try1(pHandler) \
 104   __asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
 105
 106 #define __except1       \
 107   __asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
 108   : : : "%eax");
 109 #elif defined(__x86_64)
 110 #define __try1(pHandler) \
 111   __asm__ ("pushq %0;pushq %%gs:0;movq %%rsp,%%gs:0;" : : "g" (pHandler));
 112
 113 #define __except1       \
 114   __asm__ ("movq (%%rsp),%%rax;movq %%rax,%%gs:0;addq $16,%%rsp;" \
 115   : : : "%rax");
 116 #else
 117 #define __try1(pHandler)
 118 #define __except1
 119 #endif
 120
 121 #endif // 0
 122
 123 #ifdef __cplusplus
 124 }
 125 #endif
 126
 127 #pragma pack(pop)
 128 #endif