[Bug target/113357] [14/15 regression] m68k-linux bootstrap failure in stage2 due to segfault compiling unwind-dw2.c since r14-4664-g04c9cf5c786b94

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113357

--- Comment #18 from Jeffrey A. Law <law at gcc dot gnu.org> ---
And I'll repeat what I said earlier.  Someone is going to have to put this
under a debugger and understand what's really going on.  As far as I can tell
that's never been done and while debugging via "i did this and it failed" can
work, it's not terrible efficient.

So again, I would suggest someone with an interest start by putting the failing
stage2 compiler under the debugger to understand why the fault is triggering. 
That will also provide a bit more insight into what routine is most likely
problematical.