On 07/01/2011 08:55 AM, Dr. David Alan Gilbert wrote:
> +/* Check that the kernel has a new enough version at load */
> +void __check_for_sync8_kernelhelper (void)
> +{
> + if (__kernel_helper_version < 5)
> + {
> + const char err[] = "A newer kernel is required to run this binary.
> (__kernel_cmpxchg64 helper)\n";
> + /* At this point we need a way to crash with some information
> + for the user - I'm not sure I can rely on much else being
> + available at this point, so do the same as generic-morestack.c
> + write() and abort(). */
> + write (2 /* stderr */, err, sizeof(err));
> + abort ();
> + }
> +};
Wouldn't it be better to convert the arm kernel to use a proper VDSO,
so that this error actually comes from the dynamic linker? That's
the beauty of a true VDSO -- proper symbol resolution.
r~
