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binman: Allow entries to expand after packing

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Add support for detecting entries that change size after they have already
been packed, and re-running packing when it happens.

This removes the limitation that entry size cannot change after
PackEntries() is called.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2019-07-08 14:25:37 -06:00
parent bf6906bab4
commit c52c9e7da8
12 changed files with 184 additions and 25 deletions
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8
tools/binman/image.py
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@ -55,6 +55,10 @@ class Image:
self._filename = filename
self._section = bsection.Section('main-section', None, self._node, self)
def Raise(self, msg):
"""Convenience function to raise an error referencing an image"""
raise ValueError("Image '%s': %s" % (self._node.path, msg))
def GetFdtSet(self):
"""Get the set of device tree files used by this image"""
return self._section.GetFdtSet()
@ -100,6 +104,10 @@ class Image:
"""
self._section.GetEntryOffsets()
def ResetForPack(self):
"""Reset offset/size fields so that packing can be done again"""
self._section.ResetForPack()
def PackEntries(self):
"""Pack all entries into the image"""
self._section.PackEntries()