Function db_lookup_thread

freebsd/ddb/db_thread.c:112–135

* Lookup a thread based on a db expression address. We assume that the * address was parsed in hexadecimal. We reparse the address in decimal * first and try to treat it as a thread ID to find an associated thread. * If that fails and check_pid is true, we treat the decimal value as a * PID. If that matches a process, we return the first thread in that * process. Otherwise, we treat the a

 * process.  Otherwise, we treat the addr as a pointer to a thread.
 */
struct thread *
db_lookup_thread(db_expr_t addr, bool check_pid)
{
	struct thread *td;
	db_expr_t decaddr;

	/*
	 * If the parsed address was not a valid decimal expression,
	 * assume it is a thread pointer.
	 */
	decaddr = db_hex2dec(addr);
	if (decaddr == -1)
		return ((struct thread *)addr);

	td = kdb_thr_lookup(decaddr);
	if (td != NULL)
		return (td);
	if (check_pid) {
		td = kdb_thr_from_pid(decaddr);
		if (td != NULL)
			return (td);
	}
	return ((struct thread *)addr);
}

/*
 * Lookup a process based on a db expression address.  We assume that the