4 files changed, 8 insertions(+), 1 deletions(-)

M pc/fns.h
M pc/l.s
M port/error.h
M port/sysfile.c

@@ 25,6 25,7 @@ void	fpsave(FPsave*);
 ulong	fpstatus(void);
 ulong	getcr0(void);
 ulong	getcr2(void);
+ulong	getcr3(void);
 char*	getconf(char*);
 ulong	getstatus(void);
 void	hardclock(void);

@@ 289,6 289,10 @@ TEXT	getcr2(SB),$0		/* fault address */
 	MOVL	CR2,AX
 	RET
 
+TEXT	getcr3(SB),$0		/* page directory base */
+	MOVL	CR3,AX
+	RET
+
 #define	FPOFF\
 	WAIT;\
 	MOVL	CR0,AX;\

@@ 53,3 53,4 @@ extern char Erecover[];		/* failed to recover fd */
 extern char Eshort[];		/* i/o count too small */
 extern char Enobitstore[];	/* out of screen memory */
 extern char Egreg[];		/* coherency problem */
+extern char Ebadspec[];		/* bad attach specifier */

@@ 548,7 548,8 @@ bindmount(ulong *arg, int ismount)
 			error(Ebadarg);
 
 		bogus.spec = (char*)arg[3];
-		nameok(bogus.spec);
+		if(strchr(bogus.spec, ' '))
+			error(Ebadspec);
 
 		ret = devno('M', 0);
 		c0 = (*devtab[ret].attach)((char*)&bogus);