From e6514f58ee48b5440e71b42b3859047120bce9cf Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Fri, 10 Jul 2015 16:28:11 +0200
Subject: yyy vm: add vm_map_info

---
 vm/vm_map.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/vm/vm_map.c b/vm/vm_map.c
index a521476..1ebccac 100644
--- a/vm/vm_map.c
+++ b/vm/vm_map.c
@@ -4831,4 +4831,58 @@ void vm_map_copy_print(copy)
 
 	indent -= 2;
 }
+
+/*
+ *	vm_map_info:	[ debug ]
+ *
+ *	Like vm_map_print, but less verbose.  Output is similar to
+ *	that of /bin/vminfo.
+ */
+void vm_map_info(vm_map_t map)
+{
+	vm_map_entry_t	entry;
+
+	printf("Task map 0x%X: pmap=0x%X,",
+	       (vm_offset_t) map, (vm_offset_t) (map->pmap));
+	printf("ref=%d,nentries=%d,", map->ref_count, map->hdr.nentries);
+	printf("version=%d\n",	map->timestamp);
+
+	for (entry = vm_map_first_entry(map);
+	     entry != vm_map_to_entry(map);
+	     entry = entry->vme_next) {
+		static char *inheritance_name[3] = { "share", "copy", "none"};
+
+		/* Offset and size.  */
+		printf("0x%X[0x%X] ",
+			(vm_offset_t) entry->vme_start,
+			(vm_offset_t) entry->vme_end
+			- (vm_offset_t) entry->vme_start);
+
+		static char *protections[] = {
+			"0", "R", "W", "RW", "X", "RX", "WX", "RWX",
+		};
+		printf("(prot=%s, max_prot=%s",
+		       protections[entry->protection],
+		       protections[entry->max_protection]);
+		if (entry->is_sub_map)
+		 	printf(", submap=0x%X",
+			       (vm_offset_t) entry->object.sub_map);
+		else if (entry->object.vm_object)
+			printf(", object=0x%X",
+			       (vm_offset_t) entry->object.vm_object);
+		if (entry->offset)
+			printf(", offs=0x%x", entry->offset);
+		if (entry->inheritance != VM_INHERIT_NONE)
+			printf(", %s", inheritance_name[entry->inheritance]);
+		if (entry->wired_count != 0) {
+			printf(", wired=");
+			if (entry->user_wired_count != 0)
+				printf("u");
+			if (entry->wired_count >
+			    ((entry->user_wired_count == 0) ? 0 : 1))
+				printf("k");
+		}
+		printf(")\n");
+	}
+}
 #endif	/* MACH_KDB */
-- 
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