@@ -18,6 +18,27 @@ from linux import utils
list_head = utils.CachedType("struct list_head")
+def list_for_each(head):
+ if head.type == list_head.get_type().pointer():
+ head = head.dereference()
+ elif head.type != list_head.get_type():
+ raise gdb.GdbError("Must be struct list_head not {}"
+ .format(head.type))
+
+ node = head['next'].dereference()
+ while node.address != head.address:
+ yield node.address
+ node = node['next'].dereference()
+
+
+def list_for_each_entry(head, gdbtype, member):
+ for node in list_for_each(head):
+ if node.type != list_head.get_type().pointer():
+ raise TypeError("Type {} found. Expected struct list_head *."
+ .format(node.type))
+ yield utils.container_of(node, gdbtype, member)
+
+
def list_check(head):
nb = 0
if (head.type == list_head.get_type().pointer()):
Facilitate linked-list items by providing a generator to return the dereferenced, and type-cast objects from a kernel linked list CC: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Kieran Bingham <kieran.bingham@linaro.org> --- Changes since v1: - items function removed, and replaced with Jeff Mahoney's cleaner implementations of list_for_each, and list_for_each_entry Changes since v3: - GdbError strings formatted on single line - list_head type corrected to head.type - .format() style preferred over % --- scripts/gdb/linux/lists.py | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) -- 2.5.0