"""
return self._node.path
- def GetData(self):
+ def GetData(self, required=True):
"""Get the contents of an entry
+ Args:
+ required: True if the data must be present, False if it is OK to
+ return None
+
Returns:
bytes content of the entry, excluding any padding. If the entry is
compressed, the compressed data is returned
if not self.content:
self.Raise("Collection must have a 'content' property")
- def GetContents(self):
+ def GetContents(self, required):
"""Get the contents of this entry
+ Args:
+ required: True if the data must be present, False if it is OK to
+ return None
+
Returns:
bytes content of the entry
"""
# Join up all the data
- self.Info('Getting content')
+ self.Info('Getting contents, required=%s' % required)
data = b''
for entry_phandle in self.content:
- entry_data = self.section.GetContentsByPhandle(entry_phandle, self)
- if entry_data is None:
+ entry_data = self.section.GetContentsByPhandle(entry_phandle, self,
+ required)
+ if not required and entry_data is None:
+ self.Info('Contents not available yet')
# Data not available yet
return None
data += entry_data
return data
def ObtainContents(self):
- data = self.GetContents()
+ data = self.GetContents(False)
if data is None:
return False
self.SetContents(data)
def ProcessContents(self):
# The blob may have changed due to WriteSymbols()
- data = self.GetContents()
+ data = self.GetContents(True)
return self.ProcessContentsUpdate(data)
return data
- def _BuildSectionData(self):
+ def _BuildSectionData(self, required):
"""Build the contents of a section
This places all entries at the right place, dealing with padding before
pad-before and pad-after properties in the section items) since that is
handled by the parent section.
+ Args:
+ required: True if the data must be present, False if it is OK to
+ return None
+
Returns:
Contents of the section (bytes)
"""
section_data = b''
for entry in self._entries.values():
- data = self.GetPaddedDataForEntry(entry, entry.GetData())
+ entry_data = entry.GetData(required)
+ if not required and entry_data is None:
+ return None
+ data = self.GetPaddedDataForEntry(entry, entry_data)
# Handle empty space before the entry
pad = (entry.offset or 0) - self._skip_at_start - len(section_data)
if pad > 0:
data = self.GetData()
return section.GetPaddedDataForEntry(self, data)
- def GetData(self):
+ def GetData(self, required=True):
"""Get the contents of an entry
This builds the contents of the section, stores this as the contents of
the section and returns it
+ Args:
+ required: True if the data must be present, False if it is OK to
+ return None
+
Returns:
bytes content of the section, made up for all all of its subentries.
This excludes any padding. If the section is compressed, the
compressed data is returned
"""
- data = self._BuildSectionData()
+ data = self._BuildSectionData(required)
+ if data is None:
+ return None
self.SetContents(data)
return data
self._SortEntries()
self._ExpandEntries()
- data = self._BuildSectionData()
+ data = self._BuildSectionData(True)
self.SetContents(data)
self.CheckSize()
def GetEntries(self):
return self._entries
- def GetContentsByPhandle(self, phandle, source_entry):
+ def GetContentsByPhandle(self, phandle, source_entry, required):
"""Get the data contents of an entry specified by a phandle
This uses a phandle to look up a node and and find the entry
- associated with it. Then it returnst he contents of that entry.
+ associated with it. Then it returns the contents of that entry.
+
+ The node must be a direct subnode of this section.
Args:
phandle: Phandle to look up (integer)
source_entry: Entry containing that phandle (used for error
reporting)
+ required: True if the data must be present, False if it is OK to
+ return None
Returns:
data from associated entry (as a string), or None if not found
source_entry.Raise("Cannot find node for phandle %d" % phandle)
for entry in self._entries.values():
if entry._node == node:
- return entry.GetData()
+ return entry.GetData(required)
source_entry.Raise("Cannot find entry for node '%s'" % node.name)
def LookupSymbol(self, sym_name, optional, msg, base_addr, entries=None):
EntryArg('kernelkey', str),
EntryArg('preamble-flags', int)])
- def GetVblock(self):
+ def GetVblock(self, required):
"""Get the contents of this entry
+ Args:
+ required: True if the data must be present, False if it is OK to
+ return None
+
Returns:
bytes content of the entry, which is the signed vblock for the
provided data
"""
# Join up the data files to be signed
- input_data = self.GetContents()
+ input_data = self.GetContents(required)
if input_data is None:
return None
return tools.ReadFile(output_fname)
def ObtainContents(self):
- data = self.GetVblock()
+ data = self.GetVblock(False)
if data is None:
return False
self.SetContents(data)
def ProcessContents(self):
# The blob may have changed due to WriteSymbols()
- data = self.GetVblock()
+ data = self.GetVblock(True)
return self.ProcessContentsUpdate(data)
tools.GetBytes(0xfe, 3) + U_BOOT_DTB_DATA,
data)
+ def testCollectionSection(self):
+ """Test a collection where a section must be built first"""
+ # Sections never have their contents when GetData() is called, but when
+ # _BuildSectionData() is called with required=True, a section will force
+ # building the contents, producing an error is anything is still
+ # missing.
+ data = self._DoReadFile('199_collection_section.dts')
+ section = U_BOOT_NODTB_DATA + U_BOOT_DTB_DATA
+ self.assertEqual(section + U_BOOT_DATA + tools.GetBytes(0xff, 2) +
+ section + tools.GetBytes(0xfe, 3) + U_BOOT_DATA,
+ data)
+
+
if __name__ == "__main__":
unittest.main()
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ collection {
+ content = <§ion &u_boot>;
+ };
+ fill {
+ size = <2>;
+ fill-byte = [ff];
+ };
+ section: section {
+ u-boot-nodtb {
+ };
+ u-boot-dtb {
+ };
+ };
+ fill2 {
+ type = "fill";
+ size = <3>;
+ fill-byte = [fe];
+ };
+ u_boot: u-boot {
+ no-expanded;
+ };
+ };
+};
projects / uboot.git / commitdiff