##巨集定義的用法

/*
~/tmp$ gcc -D_CACHE=arm920 -g -static -o test test.c
~/tmp$ ./test
call arm920_dma_flush_range()!!
~/tmp$ gcc -D_CACHE=arm926 -g -static -o test test.c
~/tmp$ ./test
call arm926_dma_flush_range()!!
~/tmp$

*/


#include

#define ____glue(name,fn) name##fn

#define __glue(name,fn) ____glue(name,fn)

void arm926_dma_flush_range(){

printf("call arm926_dma_flush_range()!!\n");
}
void arm920_dma_flush_range(){

printf("call arm920_dma_flush_range()!!\n");
}


#define dmac_flush_range __glue(_CACHE,_dma_flush_range)



int main()
{
dmac_flush_range();
return 0;
}