sys_tgkill(9)
NAME
sys_tgkill - send signal to one specific thread
SYNOPSIS
long sys_tgkill(int tgid, int pid, int sig);
ARGUMENTS
- tgid
- the thread group ID of the thread
- pid
- the PID of the thread
- sig
- signal to be sent
DESCRIPTION
- This syscall also checks the tgid and returns -ESRCH even
- if the PID exists but it's not belonging to the target process
- anymore. This method solves the problem of threads exiting and
- PIDs getting reused.