🚀 go-pugleaf

I think I have found a bug with the mips stdarg header.
The following program was run on a DEC 500 running
ULTRIX V4.2A (Rev. 47) and compiled with gcc version 2.2.2


The sample program is supposed to cycle through three structures
printing them out.  The correct output is 

1 2
13 12
123 456

when compiled with gcc I get

3 3
3 1
1 2

After playing with it a while, it looks like the macro va_arg
does not take a big enough step for each structure.  In fact the macro
in va-mips.h does not even take the size of the object that is to be
returned and thus it is not possible to step the correct amount.

I hope you can fix the problem!

thanks
sean quinlan

---------

#include <stdarg.h>

typedef struct Obj {
	int p0;
	int p1;
} Obj;

Obj
convert(int n, ...)
{
	va_list ap;
	Obj o;
	int i;

	va_start(ap, n);
	for (i = 0; i < n; i++) {
		o = va_arg(ap, Obj);
		printf("%d %d\n", o.p0, o.p1);
	}
	va_end(ap);

	return o;
}

main()
{
	Obj a, b, c, d;

	a.p0 = 1;
	a.p1 = 2;

	b.p0 = 13;
	b.p1 = 12;

	c.p0 = 123;
	c.p1 = 456;

	
	d = convert(3, a, b, c);
}