#include <u.h>#include <libc.h>#include <thread.h> voidnoteproc(void *arg) {	char buf[256];	int out;	int in;	int r;	int pid; 	pid = recvul((Channel*)arg);	in = open("/dev/cpunote", OREAD);	if (in < 0) {		fprint(2, "error: open /dev/cpunote: %r\n");		return;	}	snprint(buf, 255, "/proc/%d/notepg", pid);	out = open(buf, OWRITE);	if (out < 0) {		fprint(2, "error: open %s: %r\n", buf);		close(in);		return;	}	while((r = read(in, buf, 255)) > 0) {		if (write(out, buf, r) != r) {			fprint(2, "error: write note: %r\n");			break;		}	}	if (r < 0)		fprint(2, "error: read /dev/cpunote: %r\n");	close(in);	close(out);} voidthreadmain(int argc, char **argv) {	char *cmd = "/bin/rc";	char buf[256];	char winid[16];	int pid;	int fd;	int r;	Channel *cpid; 	rfork(RFNAMEG|RFFDG|RFENVG);	cpid = chancreate(sizeof(ulong), 0);	fd = open("/dev/hsys/new", OREAD);	if (fd < 0)		exits("open new");	if ((r = read(fd, winid, 15)) <= 0)		exits("read new");	winid[r] = '\0';	close(fd);	snprint(buf, 255, "/dev/hsys/%s", winid);	bind(buf, "/dev", MBEFORE|MCREATE);	close(0);	if(open("/dev/cons", OREAD) < 0){		fprint(2, "can't open /dev/cons: %r\n");		exits("/dev/cons");	}	close(1);	if(open("/dev/cons", OWRITE) < 0){		fprint(2, "can't open /dev/cons: %r\n");		exits("open");	/* BUG? was terminate() */	}	dup(1, 2);	proccreate(noteproc, cpid, mainstacksize);	procexec(cpid, cmd, argv);	sysfatal("exec: %r");}