[m68k 03/13] boehm-gc fixes

[Tom Tromey]

>>>>> ">" == zippel  <zippel@linux-m68k.org> writes:

>> A few fixes to get gc working on m68k:
>> - the thread suspend handler has to save all registers
>> - reenable MPROTECT_VDB, it should work, otherwise it probably was a
>>   kernel bug (and I couldn't find a reference to the original problem,
>>   neither did I notice any problem)
>> - change STACKBOTTOM to LINUX_STACKBOTTOM so it works with 2.6 kernel

This seems unobjectionable to me, but we prefer that non-urgent GC
patches go in upstream before we check them in to GCC.

Tom