[Bug go/64999] s390x libgo test failure in TestMemoryProfiler

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64999

--- Comment #39 from Ian Lance Taylor <ian at airs dot com> ---
Unfortunately backtrace_simple does not handle inlined calls correctly, so it
won't work for a couple of very important cases: doing a stack backtrace on
panic, and skipping the right number of frames when called from places like the
log package.  I don't think that is a workable approach.