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08723a7abb
At present sections have no record of their parent so it is not possible to traverse up the tree to the root and figure out the position of a section within the image. Change the constructor to record this information. Signed-off-by: Simon Glass <sjg@chromium.org>
107 lines
3.4 KiB
Python
107 lines
3.4 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2018 Google, Inc
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# Written by Simon Glass <sjg@chromium.org>
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#
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# Entry-type module for sections, which are entries which can contain other
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# entries.
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#
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from entry import Entry
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import fdt_util
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import tools
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import bsection
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class Entry_section(Entry):
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"""Entry that contains other entries
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Properties / Entry arguments: (see binman README for more information)
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- size: Size of section in bytes
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- align-size: Align size to a particular power of two
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- pad-before: Add padding before the entry
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- pad-after: Add padding after the entry
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- pad-byte: Pad byte to use when padding
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- sort-by-offset: Reorder the entries by offset
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- end-at-4gb: Used to build an x86 ROM which ends at 4GB (2^32)
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- name-prefix: Adds a prefix to the name of every entry in the section
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when writing out the map
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A section is an entry which can contain other entries, thus allowing
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hierarchical images to be created. See 'Sections and hierarchical images'
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in the binman README for more information.
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"""
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def __init__(self, section, etype, node):
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Entry.__init__(self, section, etype, node)
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self._section = bsection.Section(node.name, section, node,
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section._image)
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def GetFdtSet(self):
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return self._section.GetFdtSet()
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def ProcessFdt(self, fdt):
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return self._section.ProcessFdt(fdt)
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def ExpandEntries(self):
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Entry.ExpandEntries(self)
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self._section.ExpandEntries()
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def AddMissingProperties(self):
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Entry.AddMissingProperties(self)
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self._section.AddMissingProperties()
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def ObtainContents(self):
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return self._section.GetEntryContents()
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def GetData(self):
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return self._section.GetData()
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def GetOffsets(self):
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"""Handle entries that want to set the offset/size of other entries
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This calls each entry's GetOffsets() method. If it returns a list
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of entries to update, it updates them.
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"""
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self._section.GetEntryOffsets()
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return {}
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def Pack(self, offset):
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"""Pack all entries into the section"""
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self._section.PackEntries()
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self._section.SetOffset(offset)
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self.size = self._section.GetSize()
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return super(Entry_section, self).Pack(offset)
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def SetImagePos(self, image_pos):
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Entry.SetImagePos(self, image_pos)
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self._section.SetImagePos(image_pos + self.offset)
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def WriteSymbols(self, section):
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"""Write symbol values into binary files for access at run time"""
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self._section.WriteSymbols()
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def SetCalculatedProperties(self):
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Entry.SetCalculatedProperties(self)
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self._section.SetCalculatedProperties()
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def ProcessContents(self):
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self._section.ProcessEntryContents()
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super(Entry_section, self).ProcessContents()
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def CheckOffset(self):
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self._section.CheckEntries()
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def WriteMap(self, fd, indent):
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"""Write a map of the section to a .map file
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Args:
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fd: File to write the map to
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"""
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self._section.WriteMap(fd, indent)
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def GetEntries(self):
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return self._section.GetEntries()
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def ExpandToLimit(self, limit):
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super(Entry_section, self).ExpandToLimit(limit)
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self._section.ExpandSize(self.size)
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