[PATCH, RFC] Enable libsanitizer on powerpc{,64}

[Peter Bergner]

On Wed, 2012-11-21 at 13:46 +0400, Evgeniy Stepanov wrote:
> Matching FP or SP also sounds good, and perhaps more reliable than
> just popping 2 frames from the top of the stack.

Agreed.  Can you try my second patch that searches for the frame
address we want our backtrace to start with and see if that works
for ARM?  The nice thing about that patch is that we won't have
to play any games with forcing or disabling inlining of any of
the ASAN functions which me might have to do if we always pop
2 frames off the stack.  It would also be tolerant of adding
any number of new function calls in between the current two
ASAN function at the top of the backtrace.

http://gcc.gnu.org/ml/gcc-patches/2012-11/msg01711.html

Bah, ignore that first diff of the LAST_UPDATED file. :(

Peter