https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80953
--- Comment #13 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> This is weird: this test PASSes for me on Solaris 11.3, 11.4 and 11.5,
> both 32 and 64-bit, as and gas.
A more useful backtrace just before the crash:
(gdb) bt
#0 0xfe8d9080 in free ()
from /home/botcazou/gcc-head/install_sparc/lib/libasan.so.5
#1 0xff14de1c in __deregister_frame_info_bases (begin=<optimized out>)
at /homes/botcazou/gcc-head/src/libgcc/unwind-dw2-fde.c:228
#2 __deregister_frame_info_bases (begin=0xff15f044)
at /homes/botcazou/gcc-head/src/libgcc/unwind-dw2-fde.c:201
#3 0xff1435fc in __do_global_dtors_aux ()
from /home/botcazou/gcc-head/install_sparc/lib/libgcc_s.so.1
#4 0xff14ed80 in _fini ()
from /home/botcazou/gcc-head/install_sparc/lib/libgcc_s.so.1
#5 0xff1b236c in call_fini () from /usr/lib/ld.so.1
#6 0xff1b24a4 in atexit_fini () from /usr/lib/ld.so.1
#7 0xff05c128 in _exithandle () from /lib/libc.so.1
#8 0xff049f94 in exit () from /lib/libc.so.1
#9 0x00010dfc in _start ()
so libgcc is dereferencing its EH frames by invoking libasan's free...
The bottom line is that you need to HAVE_LD_EH_FRAME_HDR enabled in the
compiler otherwise the sanitizer is unusable (it wasn't because the configure
script requires GNU sed and only found the system sed on the machine).
