Invoke a fatal stack trace unwinder when ASan prints allocator-relevant
error reports (double-free, alloc-dealloc-mismatch, invalid-free).
Thus we'll be able to print complete stack trace even if allocation/free
stacks are not stored (malloc_context_size=0).
Based on the patch by Yuri Gribov!
llvm-svn: 194579
Summary:
The test sets up fake x86-style fp+retaddr frames, since that's all the
unwinder works with.
Reviewers: kcc
CC: eugenis
Differential Revision: http://llvm-reviews.chandlerc.com/D445
llvm-svn: 175893