Source code reusability

[Silverio Diquigiovanni]

Hi to all,

I'm aware that this isn't a good request to submit to this mail list,
but with faith in your experience in matter of reusable source code I
hope you can help me.

The question:

- I have three compilers which I normally use every day :

  Green Hills compiler
  GNU gcc compiler
  IAR compiler

The source code is largely reusable because I use always ANSI compliant
normative, but today have a problem with interrupt functions.

I must create a mechanism for declarin a function like interrupt
function whitout use a compiler dipendent syntax.

Green Hills uses :
  void interrupt my_fun( void ) { }

GNU uses:
  #pragma interrupt
  void my_fun( void ) { }

IAR uses:
  void interrupt[vect_num] my_fun( void ) { }

My initial idea was be usign a macro to implement the different
compiler implementation.

#ifdef __GREEN_HILLS__
  #define INTERRUPT_FUN(fun,vec)	(.........)
#endif
#ifdef __GNUC__
  #define INTERRUPT_FUN(fun,vec) (#pragma interrupt \ void fun(void))
#endif
#ifdef __IAR__
  #define INTERRUPT_FUN(fun,vec) (void interrupt[vec] fun(void))
#endif

But #pragma can't be generated by a macro, so the __GNUC__
implementation is impossible....

Have you some suggestion about ?

Thank you in advance,
Best Regards

Silverio Diquigiovanni