exception.h

基于ADI blackfin的异常处理程序

#ifndef MY_EXCEPTION_CATCH_TEST

#define MY_EXCEPTION_CATCH_TEST


#include <stdlib.h>


// the length of an element of the exception stack 
#define STACK_TYPE_SIZE     (sizeof(void*))


// the max exception stack size can be configured by users
#define MAX_EXCEPTION_STACK_SIZE    8


// the type of address can be configured according to users' machines
typedef unsigned long ADDR;     // default 32 bytes


class _sys_ExceptStack
{
private:

    void* except_stack_queue[MAX_EXCEPTION_STACK_SIZE];
    
    void **tail, **front;
    
    bool bFull, bEmpty;
    
    int tempCounter;
    
    
public:

    _sys_ExceptStack(void);
    
    ~_sys_ExceptStack(void);
    
    void AddException(void *pE);
    
    void* GetException(void);
    
    inline void ClearCounter(void);
};


inline void _sys_ExceptStack::ClearCounter(void)
{
	while(tempCounter > 0)
	    GetException();
}


extern _sys_ExceptStack __sysExceptionStack;


#define THROW(expr)     {   __sysExceptionStack.AddException(expr); }


#define TRY     {
	

#define CATCH(type, var)       type var = (type)__sysExceptionStack.GetException(); \
                                if(var == NULL);    \
                                else    {


#define END_TRY          \
                 __sysExceptionStack.ClearCounter();  exit(-1);   } \
                   }


#endif