Add support for machdep.console_device, machdep.booted_device,

and machdep.booted_kernel sysctl variables on arm32.  (booted_kernel
only currently available on Sharks)

sys/arch/arm32/arm32/machdep.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: machdep.c,v 1.78 2000/05/26 21:19:31 thorpej Exp $	*/
+/*	$NetBSD: machdep.c,v 1.79 2000/06/07 04:59:28 matt Exp $	*/
 
 /*
  * Copyright (c) 1994-1998 Mark Brinicombe.
@@ -57,6 +57,7 @@
 #include <sys/mount.h>
 #include <sys/vnode.h>
 #include <sys/msgbuf.h>
+#include <sys/device.h>
 #include <vm/vm.h>
 #include <sys/sysctl.h>
 #include <sys/syscallargs.h>
@@ -142,6 +143,10 @@ extern void dumpsys	__P((void));
 extern void pmap_debug	__P((int level));
 #endif	/* PMAP_DEBUG */
 
+#if defined(SHARK)
+int shark_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp,
+	void *newp, size_t newlen, struct proc *p);
+#endif
 /*
  * Debug function just to park the CPU
  */
@@ -773,6 +778,31 @@ cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
 	case CPU_DEBUG:
 		return(sysctl_int(oldp, oldlenp, newp, newlen, &kernel_debug));
 
+	case CPU_BOOTED_DEVICE:
+		if (booted_device != NULL)
+			return (sysctl_rdstring(oldp, oldlenp, newp,
+			    booted_device->dv_xname));
+		return (EOPNOTSUPP);
+
+	case CPU_CONSDEV: {
+		dev_t consdev;
+		if (cn_tab != NULL)
+			consdev = cn_tab->cn_dev;
+		else
+			consdev = NODEV;
+		return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev,
+			sizeof consdev));
+	}
+#if defined(SHARK)
+	case CPU_BOOTED_KERNEL: {
+		extern char *boot_kernel;
+		if (boot_kernel != NULL && boot_kernel[0] != '\0')
+			return sysctl_rdstring(oldp, oldlenp, newp,
+			    boot_kernel);
+		return (EOPNOTSUPP);
+	}
+#endif
+
 	default:
 		return (EOPNOTSUPP);
 	}

sys/arch/arm32/include/cpu.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: cpu.h,v 1.20 2000/05/26 21:19:32 thorpej Exp $	*/
+/*	$NetBSD: cpu.h,v 1.21 2000/06/07 04:59:29 matt Exp $	*/
 
 /*
  * Copyright (c) 1994-1996 Mark Brinicombe.
@@ -283,11 +283,17 @@ void child_return	__P((void *));
  * CTL_MACHDEP definitions.
  */
 #define	CPU_DEBUG		1	/* int: misc kernel debug control */
-#define	CPU_MAXID		2	/* number of valid machdep ids */
+#define	CPU_BOOTED_DEVICE	2	/* string: device we booted from */
+#define	CPU_BOOTED_KERNEL	3	/* string: kernel we booted */
+#define	CPU_CONSDEV		4	/* struct: dev_t of our console */
+#define	CPU_MAXID		5	/* number of valid machdep ids */
 
 #define	CTL_MACHDEP_NAMES { \
 	{ 0, 0 }, \
 	{ "debug", CTLTYPE_INT }, \
+	{ "booted_device", CTLTYPE_STRING }, \
+	{ "booted_kernel", CTLTYPE_STRING }, \
+	{ "console_device", CTLTYPE_STRUCT }, \
 }    
 
 #endif /* !_ARM32_CPU_H_ */

sys/arch/arm32/shark/shark_machdep.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: shark_machdep.c,v 1.16 2000/06/06 20:17:36 matt Exp $	*/
+/*	$NetBSD: shark_machdep.c,v 1.17 2000/06/07 04:59:30 matt Exp $	*/
 
 /*
  * Copyright 1997
@@ -119,6 +119,7 @@ void	ofbus_attach __P((struct device *, struct device *, void *));
 BootConfig bootconfig;
 char *boot_args = NULL;
 char *boot_file = NULL;
+char *boot_kernel = NULL;
 #ifndef PMAP_STATIC_L1S
 int max_processes = 64;			/* Default number */
 #endif	/* !PMAP_STATIC_L1S */
@@ -398,8 +399,19 @@ ofw_device_register(struct device *dev, void *aux)
 	char name[64];
 	int i;
 
-	if (boot_component == NULL)
+	if (boot_component == NULL) {
+		char *cp;
 		boot_component = boot_file;
+		if (boot_component == NULL)
+			return;
+		cp = strrchr(boot_component, ':');
+		if (cp != NULL) {
+			*cp++ = '\0';
+			if (cp[0] == '\\')
+				cp++;
+			boot_kernel = cp; 
+		}
+	}
 
 	if (booted_device != NULL
 	    || boot_component == NULL