devcons.ed

在x86平台上运行不可信任代码的sandbox。

g/"pool.h"/d
,s!QLock;!QLock lk;!g
/vlong	fasthz/ s!;! = 1000000000ULL;  // Plan 9 VX = nsecs!
,s!lock(c)!lock(\&c->ref.lk)!g
g/^kbd/ s/Queue\*,/Queue *q,/
,s!lock(\&kbd)!lock(\&kbd.lk)!g
,s!(a = strchr(a, ' '))!(&)!g
,s!MACHP(0)->ticks!msec()!g
/^long2le/-1 s!static!/*static*/!
/fasthz == 0/,/fastticks/d
/fasthz == 0/,/fastticks/d
/static int ctrlt, pid/ s/, pid//
/^		snprint(tmp/,/imagmem/c
		tmp[0] = 0;
.
,s/\.0lud/lud/g
,s/\.0llud/llud/g
/^Queue\*	serialoq/d
/^consactive/-1i
#if 0 // Plan 9 VX
.
/^}/a
#endif
.
/^kbdputcclock/-1i
#if 0 // Plan 9 VX
.
/^}/a
#endif
.
/^prflush/-1i
#if 0 // Plan 9 VX
.
/^}/a
#endif
.
/^putstrn0/
/	int m/d
/	char \*t/d
/	if(serialoq == nil)/i
	uartputs(str, n);
#if 0 // Plan 9 VX
.
/^}/i
#endif
.
/^static Lock iprintlock/i
#if 0 // Plan 9 VX
.
/^_assert/
/^}/a
#endif
.
/^echoserialoq/-1i
#if 0 // Plan 9 VX
.
/^}/a
#endif
.
/^echo(/-1 s/static //
/^	if(serialoq)/d
d
/^kbdputc/+1a
	int n;
	Rune r;
	char buf[UTFmax];
	
	r = ch;
	n = runetochar(buf, &r);
	echo(buf, n);
	return 0;

#if 0 // Plan 9 VX
.
/^}/i
#endif
.
/at 115200 baud/-1i
#if 0 // Plan 9 VX
.
/addclock0link/a
#endif
.
$a

// Plan 9 VX
int
tailkmesg(char *a, int n)
{
	ilock(&kmesg.lk);
	if(n > kmesg.n)
		n = kmesg.n;
	memmove(a, kmesg.buf+kmesg.n-n, n);
	iunlock(&kmesg.lk);
	return n;
}
.
/echoscreen(buf, n)/a
	uartecho(buf, n);	// Plan 9 VX
.