20 lines
872 B
C
20 lines
872 B
C
|
/* Definitions for all PA machines. */
|
||
|
|
|
||
|
|
#define MAKEVA_START(list) \
|
||
|
|
list->argindex = list->nargs * list->max_arg_size;
|
||
|
|
|
||
|
|
/* In addition to having the arguments passed with the first ones at the
|
||
|
|
highest memory addresses, the pa also apparently aligns each argument
|
||
|
|
to the size of that argument. This only works because the caller only
|
||
|
|
deals in 4 and 8 byte arguments. If we wanted to handle args > 8 bytes,
|
||
|
|
we would have to pass the address by reference. */
|
||
|
|
#define MAKEVA_ARG(list, argaddr, argsize) \
|
||
|
|
list->argindex = (list->argindex - argsize) & ~ (argsize - 1); \
|
||
|
|
memcpy (&list->arg_bytes[list->argindex], argaddr, argsize);
|
||
|
|
|
||
|
|
/* Apparently the address of the arglist is the address right after the args
|
||
|
|
(which is what you'd expect). */
|
||
|
|
#define MAKEVA_END(list) \
|
||
|
|
return (va_list) (list->arg_bytes \
|
||
|
|
+ list->nargs * list->max_arg_size)
|