yyy vm: add vm_map_info

1 files changed, 54 insertions, 0 deletions

diff --git a/vm/vm_map.c b/vm/vm_map.c
index 1b331d6..99481c7 100644
--- a/vm/vm_map.c
+++ b/vm/vm_map.c
@@ -4858,4 +4858,58 @@ 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 */