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From: Oleksandr Tymoshenko <gonzo@FreeBSD.org>
To: Perforce Change Reviews <perforce@FreeBSD.org>
Cc: 
Subject: PERFORCE change 103601 for review
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http://perforce.freebsd.org/chv.cgi?CH=103601

Change 103601 by gonzo@gonzo_hq on 2006/08/10 21:26:50

	o Add stubs of break istruction and panic. To track down 
	    unimplemented functions.

Affected files ...

.. //depot/projects/mips2/src/sys/mips/mips/mem.c#4 edit
.. //depot/projects/mips2/src/sys/mips/mips/support.S#7 edit
.. //depot/projects/mips2/src/sys/mips/mips/uio_machdep.c#3 edit

Differences ...

==== //depot/projects/mips2/src/sys/mips/mips/mem.c#4 (text+ko) ====

@@ -60,6 +60,7 @@
 int
 memrw(struct cdev *dev, struct uio *uio, int flags)
 {
+	__asm __volatile ("break");
 	return (0);
 }
 
@@ -67,6 +68,7 @@
 memmmap(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr,
     int prot __unused)
 {
+	__asm __volatile ("break");
 	return (0);
 }
 
@@ -74,6 +76,7 @@
 memioctl(struct cdev *dev __unused, u_long cmd, caddr_t data, int flags,
         struct thread *td)
 {
+	__asm __volatile ("break");
 	return (0);
 }
 

==== //depot/projects/mips2/src/sys/mips/mips/support.S#7 (text+ko) ====

@@ -64,17 +64,17 @@
  */
 ENTRY(bcmp)
 	beqz	a2, 2f
-	li	v0, 0
+	nop
 1:	subu	a2, 1
-	lbu	t0, 0(a0)
-	lbu	t1, 0(a1)
-	bne	t0, t1, 2f
-	nop
+	lb	t0, 0(a0)
+	lb	t1, 0(a1)
+	bne	t0, t1, 3f
+	li	v0, 1
 	addu	a0, 1
 	addu	a1, 1
 	bnezl	a2, 1b
 	nop
-2:	li	v0, 1
+2:	li	v0, 0
 3:	jr	ra
 	nop
 END(bcmp)
@@ -128,6 +128,7 @@
  * <v0>int subyte(<a0>void *addr, <a1>int byte)
  */
 ENTRY(subyte)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -138,6 +139,7 @@
  * <v0>int susword(<a0>void *addr, <a1>int shortword)
  */
 ENTRY(susword)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -148,6 +150,7 @@
  * <v0>int suswintr(<a0>void *addr, <a1>int shortword)
  */
 ENTRY(suswintr)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -158,6 +161,7 @@
  * <v0>int suword(<a0>void *addr, <a1>long word)
  */
 ENTRY(suword)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -168,6 +172,7 @@
  * <v0>int suword32(<a0>void *addr, <a1>int word)
  */
 ENTRY(suword32)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -178,6 +183,7 @@
  * <v0>int suword64(<a0>void *addr, <a1>long word)
  */
 ENTRY(suword64)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -204,6 +210,7 @@
  * <v0>int fubyte(<a0>const void *addr)
  */
 ENTRY(fubyte)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -214,6 +221,7 @@
  * <v0>int fusword(<a0>const void *addr)
  */
 ENTRY(fusword)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -224,6 +232,7 @@
  * <v0>int fuswintr(<a0>const void *addr)
  */
 ENTRY(fuswintr)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -234,6 +243,7 @@
  * <v0>long fuword(<a0>const void *addr)
  */
 ENTRY(fuword)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -244,6 +254,7 @@
  * <v0>int fuword32(<a0>const void *addr)
  */
 ENTRY(fuword32)
+	break
 	li	v0, -1
 	jr	ra
 	nop
@@ -263,6 +274,7 @@
  * <v0>int copyin(<a0>const void *useraddr, <a1>void *kernaddr, <a2>size_t len)
  */
 ENTRY(copyin)
+	break
 	jr	ra
 	nop
 END(copyin)
@@ -272,6 +284,7 @@
  * <v0>int copyout(<a0>const void *kernaddr, <a1>void *useraddr, <a2>size_t len)
  */
 ENTRY(copyout)
+	break
 	jr	ra
 	nop
 END(copyout)

==== //depot/projects/mips2/src/sys/mips/mips/uio_machdep.c#3 (text+ko) ====

@@ -49,5 +49,6 @@
 int
 uiomove_fromphys(vm_page_t ma[], vm_offset_t offset, int n, struct uio *uio)
 {
+	panic("unimplemented");
 	return (0);
 }