[Bug sanitizer/60536] Backtrace corrupted on Firefox build with -fsanitize=address and -flto

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60536

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Kostya Serebryany from comment #2)
> Please symbolize the output. 

How?
asan_symbolize.py doesn't parse this output.
If I run addr2line on the first few symbols by hand I get:

Stack: 
sigaction.c:?
gsignal+0x00000034 :?
abort+0x00000147 :?
/home/markus/gcc/libgcc/unwind-pe.h:257
/home/markus/gcc/libgcc/unwind-dw2-fde-dip.c:415
dl_iterate_phdr+0x00000134 :?
_Unwind_Find_FDE+0x000001D9 /home/markus/gcc/libgcc/unwind-dw2-fde-dip.c:462
/home/markus/gcc/libgcc/unwind-dw2.c:1182
_Unwind_Backtrace+0x0000004B /home/markus/gcc/libgcc/unwind.inc:291
crtstuff.c:?
crtstuff.c:?
__asan_report_error+0x0000083A ??:?
__interceptor_setlocale+0x00000155 ??:?

> Also, does this happen with the clang version of AddressSanitizer?

Clang trunk cannot build Firefox with -fsanitize=address, because I get
asan related linker errors.