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
  30   __cdecl
  31   _except_handler(
  32     _In_ struct _EXCEPTION_RECORD *_ExceptionRecord,
  33     _In_ void *_EstablisherFrame,
  34     _Inout_ struct _CONTEXT *_ContextRecord,
  35     _Inout_ void *_DispatcherContext);
  36
  37 #elif defined(__ia64__)
  38
  39   typedef struct _EXCEPTION_POINTERS *Exception_info_ptr;
  40   struct _EXCEPTION_RECORD;
  41   struct _CONTEXT;
  42   struct _DISPATCHER_CONTEXT;
  43
  44   __MINGW_EXTENSION
  45   _CRTIMP
  46   EXCEPTION_DISPOSITION
  47   __cdecl
  48   __C_specific_handler(
  49     _In_ struct _EXCEPTION_RECORD *_ExceptionRecord,
  50     _In_ unsigned __int64 _MemoryStackFp,
  51     _In_ unsigned __int64 _BackingStoreFp,
  52     _Inout_ struct _CONTEXT *_ContextRecord,
  53     _Inout_ struct _DISPATCHER_CONTEXT *_DispatcherContext,
  54     _In_ unsigned __int64 _GlobalPointer);
  55
  56 #elif defined(__x86_64)
  57
  58   struct _EXCEPTION_RECORD;
  59   struct _CONTEXT;
  60   struct _DISPATCHER_CONTEXT;
  61
  62   _CRTIMP
  63   EXCEPTION_DISPOSITION
  64   __cdecl
  65   __C_specific_handler(
  66     _In_ struct _EXCEPTION_RECORD *_ExceptionRecord,
  67     _In_ void *_EstablisherFrame,
  68     _Inout_ struct _CONTEXT *_ContextRecord,
  69     _Inout_ struct _DISPATCHER_CONTEXT *_DispatcherContext);
  70
  71 #endif
  72
  73 #ifdef _MSC_VER
  74 #define GetExceptionCode _exception_code
  75 #define exception_code _exception_code
  76 #define GetExceptionInformation (struct _EXCEPTION_POINTERS *)_exception_info
  77 #define exception_info (struct _EXCEPTION_POINTERS *)_exception_info
  78 #define AbnormalTermination _abnormal_termination
  79 #define abnormal_termination _abnormal_termination
  80   unsigned long __cdecl _exception_code(void);
  81   void *__cdecl _exception_info(void);
  82   int __cdecl _abnormal_termination(void);
  83 #endif
  84
  85 #define EXCEPTION_EXECUTE_HANDLER 1
  86 #define EXCEPTION_CONTINUE_SEARCH 0
  87 #define EXCEPTION_CONTINUE_EXECUTION -1
  88
  89 #if 0
  90   /* CRT stuff */
  91   typedef void (__cdecl * _PHNDLR)(int);
  92
  93   struct _XCPT_ACTION {
  94     unsigned long XcptNum;
  95     int SigNum;
  96     _PHNDLR XcptAction;
  97   };
  98
  99   extern struct _XCPT_ACTION _XcptActTab[];
 100   extern int _XcptActTabCount;
 101   extern int _XcptActTabSize;
 102   extern int _First_FPE_Indx;
 103   extern int _Num_FPE;
 104
 105   int __cdecl __CppXcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
 106   int __cdecl _XcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
 107
 108   /*
 109   * The type of function that is expected as an exception handler to be
 110   * installed with _try1.
 111   */
 112   typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
 113
 114 #ifndef HAVE_NO_SEH
 115   /*
 116   * This is not entirely necessary, but it is the structure installed by
 117   * the _try1 primitive below.
 118   */
 119   typedef struct _EXCEPTION_REGISTRATION {
 120     struct _EXCEPTION_REGISTRATION *prev;
 121     EXCEPTION_DISPOSITION (*handler)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
 122   } EXCEPTION_REGISTRATION, *PEXCEPTION_REGISTRATION;
 123
 124   typedef EXCEPTION_REGISTRATION EXCEPTION_REGISTRATION_RECORD;
 125   typedef PEXCEPTION_REGISTRATION PEXCEPTION_REGISTRATION_RECORD;
 126 #endif
 127
 128 #if (defined(_X86_) && !defined(__x86_64))
 129 #define __try1(pHandler) \
 130   __asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
 131
 132 #define __except1       \
 133   __asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
 134   : : : "%eax");
 135 #elif defined(__x86_64)
 136 #define __try1(pHandler) \
 137   __asm__ ("pushq %0;pushq %%gs:0;movq %%rsp,%%gs:0;" : : "g" (pHandler));
 138
 139 #define __except1       \
 140   __asm__ ("movq (%%rsp),%%rax;movq %%rax,%%gs:0;addq $16,%%rsp;" \
 141   : : : "%rax");
 142 #else
 143 #define __try1(pHandler)
 144 #define __except1
 145 #endif
 146
 147 #endif // 0
 148
 149 #ifdef __cplusplus
 150 }
 151 #endif
 152
 153 #pragma pack(pop)
 154 #endif