exit_group - exit all threads in a process

#include <sys/syscall.h> /* Definition of SYS_* constants */
#include <unistd.h>
[[noreturn]] void syscall(SYS_exit_group, int status);

Note: glibc provides no wrapper for exit_group(), necessitating the use of syscall(2).

This system call terminates all threads in the calling process's thread group.

This system call does not return.

_exit(2)