https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94556
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> --- Created attachment 48256 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48256&action=edit A tescase [hjl@gnu-cfl-2 tmp]$ /usr/gcc-9.3.1-x32/bin/g++ -mx32 -O2 foo.cc -lpthread [hjl@gnu-cfl-2 tmp]$ ./a.out info: double, direct pthread_exit call [hjl@gnu-cfl-2 tmp]$ /usr/gcc-10.0.1-x32/bin/g++ -mx32 -O2 foo.cc -lpthread [hjl@gnu-cfl-2 tmp]$ ./a.out info: double, direct pthread_exit call Aborted (core dumped) [hjl@gnu-cfl-2 tmp]$ CFI may be incorrect.