Add a method for adding a property containing arbitrary bytes. Make sure that the tree can expand as needed in this case.
Signed-off-by: Simon Glass sjg@chromium.org ---
(no changes since v1)
tools/dtoc/fdt.py | 17 +++++++++++++++-- tools/dtoc/test_fdt.py | 4 ++++ 2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/tools/dtoc/fdt.py b/tools/dtoc/fdt.py index 188490b728..d058c59e92 100644 --- a/tools/dtoc/fdt.py +++ b/tools/dtoc/fdt.py @@ -207,7 +207,8 @@ class Prop: if auto_resize: while fdt_obj.setprop(node.Offset(), self.name, self.bytes, (libfdt.NOSPACE,)) == -libfdt.NOSPACE: - fdt_obj.resize(fdt_obj.totalsize() + 1024) + fdt_obj.resize(fdt_obj.totalsize() + 1024 + + len(self.bytes)) fdt_obj.setprop(node.Offset(), self.name, self.bytes) else: fdt_obj.setprop(node.Offset(), self.name, self.bytes) @@ -410,6 +411,18 @@ class Node: val = val.encode('utf-8') self._CheckProp(prop_name).props[prop_name].SetData(val + b'\0')
+ def AddData(self, prop_name, val): + """Add a new property to a node + + The device tree is marked dirty so that the value will be written to + the blob on the next sync. + + Args: + prop_name: Name of property to add + val: Bytes value of property + """ + self.props[prop_name] = Prop(self, None, prop_name, val) + def AddString(self, prop_name, val): """Add a new string property to a node
@@ -422,7 +435,7 @@ class Node: """ if sys.version_info[0] >= 3: # pragma: no cover val = bytes(val, 'utf-8') - self.props[prop_name] = Prop(self, None, prop_name, val + b'\0') + self.AddData(prop_name, val + b'\0')
def AddSubnode(self, name): """Add a new subnode to the node diff --git a/tools/dtoc/test_fdt.py b/tools/dtoc/test_fdt.py index 375e906424..b4f9b7f498 100755 --- a/tools/dtoc/test_fdt.py +++ b/tools/dtoc/test_fdt.py @@ -417,6 +417,10 @@ class TestProp(unittest.TestCase): self.node.SetData('empty', b'123') self.assertEqual(b'123', prop.bytes)
+ # Trying adding a lot of data at once + self.node.AddData('data', tools.GetBytes(65, 20000)) + self.dtb.Sync(auto_resize=True) + def testFromData(self): dtb2 = fdt.Fdt.FromData(self.dtb.GetContents()) self.assertEqual(dtb2.GetContents(), self.dtb.GetContents())