Vulnerability Development: get SP on Solaris (SPARC) with GCC 3.3.2

[Inode <inode () mediaservice net>]

Hi all,
I was testing some exploit on my solaris 8 box.

the function:

unsigned long get_sp(void)
{
        __asm__("mov %sp,%i0");
}

doesn't work if compiled with the gcc 3.3.2, the address returned by the 
function will be the current PC.
If compiler with gcc 3.2 work fine.

any idea?

Thanks in advance

Inode_