[Bug sanitizer/65479] sanitizer stack trace missing frames past #0 on powerpc64

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65479

--- Comment #22 from Bill Seurer <seurer at linux dot vnet.ibm.com> ---
This is now resolved in gcc 5, 6, and trunk