[Bug c++/89868] -fsanitize=address inhibits C++ unhandled exception core dump

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89868

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Actually it comes from the shell.

e.g. from bash:
              if ((WIFSTOPPED (show->status) == 0) &&
                  (WIFCONTINUED (show->status) == 0) &&
                  WIFCORED (show->status))
                fprintf (stream, _("(core dumped) "));

As WIFCORED is set on status.

WIFCORED is really a define for WCOREDUMP.

http://man7.org/linux/man-pages/man2/waitpid.2.html

So basically the kernel does not communicate why a core is not dumped to the
waiting (parent) process.