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-rw-r--r--tools/dtoc/fdt.py20
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/dtoc/fdt.py b/tools/dtoc/fdt.py
index fd016bb8ce..274c142e7a 100644
--- a/tools/dtoc/fdt.py
+++ b/tools/dtoc/fdt.py
@@ -49,6 +49,9 @@ class Prop:
return
self.type, self.value = self.BytesToValue(bytes)
+ def RefreshOffset(self, poffset):
+ self._offset = poffset
+
def Widen(self, newprop):
"""Figure out which property type is more general
@@ -154,6 +157,7 @@ class Prop:
Returns:
The offset of the property (struct fdt_property) within the file
"""
+ self._node._fdt.CheckCache()
return self._node._fdt.GetStructOffset(self._offset)
class Node:
@@ -233,8 +237,23 @@ class Node:
self._offset = my_offset
offset = fdt_obj.first_subnode(self._offset, QUIET_NOTFOUND)
for subnode in self.subnodes:
+ if subnode.name != fdt_obj.get_name(offset):
+ raise ValueError('Internal error, node name mismatch %s != %s' %
+ (subnode.name, fdt_obj.get_name(offset)))
subnode.Refresh(offset)
offset = fdt_obj.next_subnode(offset, QUIET_NOTFOUND)
+ if offset != -libfdt.FDT_ERR_NOTFOUND:
+ raise ValueError('Internal error, offset == %d' % offset)
+
+ poffset = fdt_obj.first_property_offset(self._offset, QUIET_NOTFOUND)
+ while poffset >= 0:
+ p = fdt_obj.get_property_by_offset(poffset)
+ prop = self.props.get(p.name)
+ if not prop:
+ raise ValueError("Internal error, property '%s' missing, "
+ 'offset %d' % (p.name, poffset))
+ prop.RefreshOffset(poffset)
+ poffset = fdt_obj.next_property_offset(poffset, QUIET_NOTFOUND)
def DeleteProp(self, prop_name):
"""Delete a property of a node
@@ -278,6 +297,7 @@ class Fdt:
TODO(sjg@chromium.org): Implement the 'root' parameter
"""
+ self._cached_offsets = True
self._root = self.Node(self, None, 0, '/', '/')
self._root.Scan()