diff options
Diffstat (limited to 'tools/binman/entry.py')
| -rw-r--r-- | tools/binman/entry.py | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/tools/binman/entry.py b/tools/binman/entry.py index 7db1402..e38cb71 100644 --- a/tools/binman/entry.py +++ b/tools/binman/entry.py @@ -61,6 +61,8 @@ class Entry(object): pad_after: Number of pad bytes after the contents, 0 if none data: Contents of entry (string of bytes) compress: Compression algoithm used (e.g. 'lz4'), 'none' if none + orig_offset: Original offset value read from node + orig_size: Original size value read from node """ def __init__(self, section, etype, node, read_node=True, name_prefix=''): self.section = section @@ -153,6 +155,9 @@ class Entry(object): self.Raise("Please use 'offset' instead of 'pos'") self.offset = fdt_util.GetInt(self._node, 'offset') self.size = fdt_util.GetInt(self._node, 'size') + self.orig_offset = self.offset + self.orig_size = self.size + self.align = fdt_util.GetInt(self._node, 'align') if tools.NotPowerOfTwo(self.align): raise ValueError("Node '%s': Alignment %s must be a power of two" % @@ -255,9 +260,16 @@ class Entry(object): ValueError if the new data size is not the same as the old """ size_ok = True - if len(data) != self.contents_size: + new_size = len(data) + if state.AllowEntryExpansion(): + if new_size > self.contents_size: + print("Entry '%s' size change from %#x to %#x" % ( + self._node.path, self.contents_size, new_size)) + # self.data will indicate the new size needed + size_ok = False + elif new_size != self.contents_size: self.Raise('Cannot update entry size from %d to %d' % - (self.contents_size, len(data))) + (self.contents_size, new_size)) self.SetContents(data) return size_ok @@ -271,6 +283,11 @@ class Entry(object): # No contents by default: subclasses can implement this return True + def ResetForPack(self): + """Reset offset/size fields so that packing can be done again""" + self.offset = self.orig_offset + self.size = self.orig_size + def Pack(self, offset): """Figure out how to pack the entry into the section |