[Gcl-devel] Porting gcl to windows using mingw

[Dan Stanger]

The gnu common lisp group is currently trying to build a working gcl on
windows using mingw,
and have a few questions.
First, we have a simple test program, which follows, and the results:

#define NULL_OR_ON_C_STACK(y) (((void *)(y)) < ((void *)0x230000))

int e;
main()
{
   int i;
   printf("address of i was %x e was %x\n",&i,&e);
   printf("macro of i was %x e was%x\n",
NULL_OR_ON_C_STACK(&i),NULL_OR_ON_C_STACK(&e));
   x();
}
x()
{
   int i;
   printf("address of i was %x\n",&i);
   printf("address of malloc was %x\n",malloc(100));
}
E:\>a.exe
address of i was 22ff5c e was 403000
macro of i was 1 e was
0
address of i was 22ff3c
address of malloc was 3f4830

So the stack is going down, but the value returned from malloc is
between the program,
and the static variable e.  Our garbage collection is relying on a
contigous area of memory.

My questions are:
1. Is there some way that we can link so that malloc is above the static
area?

2. Are the functions sbrk and brk available?

Thank you,
Dan Stanger