exit_group man page
exit_group — exit all threads in a process
#include <linux/unistd.h> void exit_group(int status);
This system call is equivalent to _exit(2) except that it terminates not only the calling thread, but all threads in the calling process's thread group.
This system call does not return.
This call is present since Linux 2.5.35.
This call is Linux-specific.
Since glibc 2.3, this is the system call invoked when the _exit(2) wrapper function is called.
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
_exit(2), prctl(2), ptrace(2), seccomp(2), syscalls(2).