Painful problems with -fpic implementation on powerpc-sysv

[David Edelsohn]

>>>>> Richard Henderson writes:

Richard> On Wed, Aug 26, 1998 at 08:01:03PM -0600, Jeffrey A Law wrote:
>> Register r2 is reserved for system use and should not be changed by
>> application code.
>> 
>> I don't know if that gives us the leeway we need to claim it.

Richard> I doubt it.  The Sparc ABI uses the same language for a register
Richard> Solaris uses for the thread context pointer.

Richard> Interesting to know, though.  Geoff, thought about using this in
Richard> glibc for THREAD_SELF?

	AIX 64-bit ABI has allocated GPR13 for thread-self.  AIX original
32-bit ABI works around not having thread-local data pointer.

David