On Sun, Jan 07, 2007 at 03:13:19PM +0000, Christoph Hellwig wrote: > and last but not least we probably want a unified mechanisms to deal > with the 64bit arguments that are broken up into two 32bit ones (not just > for emulation but also for 32it BE architectures)
It's not BE that is the problem -- drepper thought of that. What he fundamentally missed was the calling convention where 64-bit arguments have to be 64-bit aligned, even when they're passed through registers. So: int foo(int, long long); takes its arguments in arg0, arg2 and arg3, but glibc passes the syscall arguments in arg0, arg1 and arg2. I think the Right Way to fix this is for some gcc hacker to implement an __attribute__((packed_args)) that changes the calling convention for that function, then we can define asmlinkage to use that on mips and parisc. Any budding gcc hackers out there? ;-) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
