pub fn sys_tgkill(tgid: u64, tid: u64, signum: u64) -> Result<u64, SyscallError>Expand description
SYS_TGKILL (352): Send a signal to a specific thread in a thread group.
In the current single-threaded model, tgid and tid both map to a single task (pid == tid == tgid). We verify both match before delivering.