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 // HACK!!!
  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 #endif
  55
  56   unsigned long __cdecl _exception_code(void);
  57   void *__cdecl _exception_info(void);
  58   int __cdecl _abnormal_termination(void);
  59
  60 #define EXCEPTION_EXECUTE_HANDLER 1
  61 #define EXCEPTION_CONTINUE_SEARCH 0
  62 #define EXCEPTION_CONTINUE_EXECUTION -1
  63
  64 #if 0
  65   /* CRT stuff */
  66   typedef void (__cdecl * _PHNDLR)(int);
  67
  68   struct _XCPT_ACTION {
  69     unsigned long XcptNum;
  70     int SigNum;
  71     _PHNDLR XcptAction;
  72   };
  73
  74   extern struct _XCPT_ACTION _XcptActTab[];
  75   extern int _XcptActTabCount;
  76   extern int _XcptActTabSize;
  77   extern int _First_FPE_Indx;
  78   extern int _Num_FPE;
  79
  80   int __cdecl __CppXcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
  81   int __cdecl _XcptFilter(unsigned long _ExceptionNum,struct _EXCEPTION_POINTERS * _ExceptionPtr);
  82
  83   /*
  84   * The type of function that is expected as an exception handler to be
  85   * installed with _try1.
  86   */
  87   typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
  88
  89 #ifndef HAVE_NO_SEH
  90   /*
  91   * This is not entirely necessary, but it is the structure installed by
  92   * the _try1 primitive below.
  93   */
  94   typedef struct _EXCEPTION_REGISTRATION {
  95     struct _EXCEPTION_REGISTRATION *prev;
  96     EXCEPTION_DISPOSITION (*handler)(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
  97   } EXCEPTION_REGISTRATION, *PEXCEPTION_REGISTRATION;
  98
  99   typedef EXCEPTION_REGISTRATION EXCEPTION_REGISTRATION_RECORD;
 100   typedef PEXCEPTION_REGISTRATION PEXCEPTION_REGISTRATION_RECORD;
 101 #endif
 102
 103 #if (defined(_X86_) && !defined(__x86_64))
 104 #define __try1(pHandler) \
 105   __asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
 106
 107 #define __except1       \
 108   __asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
 109   : : : "%eax");
 110 #elif defined(__x86_64)
 111 #define __try1(pHandler) \
 112   __asm__ ("pushq %0;pushq %%gs:0;movq %%rsp,%%gs:0;" : : "g" (pHandler));
 113
 114 #define __except1       \
 115   __asm__ ("movq (%%rsp),%%rax;movq %%rax,%%gs:0;addq $16,%%rsp;" \
 116   : : : "%rax");
 117 #else
 118 #define __try1(pHandler)
 119 #define __except1
 120 #endif
 121
 122 #endif // 0
 123
 124 #ifdef __cplusplus
 125 }
 126 #endif
 127
 128 #pragma pack(pop)
 129 #endif