1 files changed, 32 insertions, 0 deletions
diff --git a/kernel/util/list.py b/kernel/util/list.py
new file mode 100644
index 0000000..4eeed03
--- /dev/null
+++ b/kernel/util/list.py
@@ -0,0 +1,32 @@
+import gdb
+
+import weenix
+import weenix.list
+
+
+class ListCommand(weenix.Command):
+    """usage: list <list> [<type> <member>]
+    <list>   the list_t to be printed
+    <type>   the type of the values stored on the list
+    <member> type's list link member used to make the list
+    Prints all items on a list_t, if <type> and <member> are not given
+    then the addresses of the list links are printed, otherwise the items
+    are printed assuming that they have the given type."""
+
+    def __init__(self):
+        weenix.Command.__init__(self, "list", gdb.COMMAND_DATA, gdb.COMPLETE_SYMBOL)
+
+    def invoke(self, arg, tty):
+        args = gdb.string_to_argv(arg)
+        if len(args) == 1:
+            for i, item in enumerate(weenix.list.load(args[0])):
+                gdb.write("{0:>3}: {1:8}\n".format(i, item.link_addr()))
+        elif len(args) == 3:
+            for i, item in enumerate(weenix.list.load(args[0], args[1], args[2])):
+                gdb.write("{0:>3}: {1}\n".format(i, item.item()))
+        else:
+            gdb.write("{0}\n".format(self.__doc__))
+            raise gdb.GdbError("invalid arguments")
+
+
+ListCommand()