diff options
Diffstat (limited to 'tools/gdb/python/chains.py')
| -rw-r--r-- | tools/gdb/python/chains.py | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/tools/gdb/python/chains.py b/tools/gdb/python/chains.py index 6ae2518..58a354a 100644 --- a/tools/gdb/python/chains.py +++ b/tools/gdb/python/chains.py @@ -37,7 +37,18 @@ class node: """Manage the Chain_Node.""" def __init__(self, node_val): - self.node_val = node_val + if node_val: + if node_val.type.code == gdb.TYPE_CODE_PTR: + self.reference = node_val + self.node_val = node_val.dereference() + else: + self.node_val = node_val + self.reference = node_val.address + else: + self.node_val = node_val + + def __str__(self): + return self.to_string() def null(self): if not self.node_val: @@ -46,11 +57,11 @@ class node: def next(self): if not self.null(): - self.node_val = self.node_val['next'] + return self.node_val['next'] def previous(self): if not self.null(): - self.node_val = self.node_val['previous'] + return self.node_val['previous'] def cast(self, typename): if not self.null(): @@ -59,21 +70,31 @@ class node: return None def to_string(self): - return self.node_val['next'] + "Prev: "+self.node_val['previous'] + if self.null(): + return 'NULL' + return 'Node:%s Next:%s Prev:%s' % (self.reference, + self.node_val['next'], + self.node_val['previous']) class control: """Manage the Chain_Control.""" def __init__(self, ctrl): - self.ctrl = ctrl + if ctrl.type.code == gdb.TYPE_CODE_PTR: + self.reference = ctrl + self.ctrl = ctrl.dereference() + else: + self.ctrl = ctrl + self.reference = ctrl.address def first(self): t = node(self.ctrl['Head']['Node']) return t - def last(self): + def tail(self): return node(self.ctrl['Tail']['Node']) def empty(self): - if self.last() == self.first().next(): + if self.tail().previous() == self.reference: return True + return False |