diff options
Diffstat (limited to 'tools/binman/bsection.py')
| -rw-r--r-- | tools/binman/bsection.py | 69 |
1 files changed, 59 insertions, 10 deletions
diff --git a/tools/binman/bsection.py b/tools/binman/bsection.py index 5910092dae..ccf2920c5b 100644 --- a/tools/binman/bsection.py +++ b/tools/binman/bsection.py @@ -8,10 +8,12 @@ from __future__ import print_function from collections import OrderedDict +from sets import Set import sys import fdt_util import re +import state import tools class Section(object): @@ -22,6 +24,7 @@ class Section(object): Attributes: _node: Node object that contains the section definition in device tree + _parent_section: Parent Section object which created this Section _size: Section size in bytes, or None if not known yet _align_size: Section size alignment, or None _pad_before: Number of bytes before the first entry starts. This @@ -44,14 +47,16 @@ class Section(object): section _entries: OrderedDict() of entries """ - def __init__(self, name, node, test=False): + def __init__(self, name, parent_section, node, image, test=False): global entry global Entry import entry from entry import Entry + self._parent_section = parent_section self._name = name self._node = node + self._image = image self._offset = 0 self._size = None self._align_size = None @@ -63,6 +68,7 @@ class Section(object): self._end_4gb = False self._name_prefix = '' self._entries = OrderedDict() + self._image_pos = None if not test: self._ReadNode() self._ReadEntries() @@ -94,25 +100,42 @@ class Section(object): def _ReadEntries(self): for node in self._node.subnodes: + if node.name == 'hash': + continue entry = Entry.Create(self, node) entry.SetPrefix(self._name_prefix) self._entries[node.name] = entry + def GetFdtSet(self): + """Get the set of device tree files used by this image""" + fdt_set = Set() + for entry in self._entries.values(): + fdt_set.update(entry.GetFdtSet()) + return fdt_set + def SetOffset(self, offset): self._offset = offset + def ExpandEntries(self): + for entry in self._entries.values(): + entry.ExpandEntries() + def AddMissingProperties(self): """Add new properties to the device tree as needed for this entry""" for prop in ['offset', 'size', 'image-pos']: if not prop in self._node.props: - self._node.AddZeroProp(prop) + state.AddZeroProp(self._node, prop) + state.CheckAddHashProp(self._node) for entry in self._entries.values(): entry.AddMissingProperties() def SetCalculatedProperties(self): - self._node.SetInt('offset', self._offset) - self._node.SetInt('size', self._size) - self._node.SetInt('image-pos', self._image_pos) + state.SetInt(self._node, 'offset', self._offset) + state.SetInt(self._node, 'size', self._size) + image_pos = self._image_pos + if self._parent_section: + image_pos -= self._parent_section.GetRootSkipAtStart() + state.SetInt(self._node, 'image-pos', image_pos) for entry in self._entries.values(): entry.SetCalculatedProperties() @@ -247,16 +270,32 @@ class Section(object): for entry in entries: self._entries[entry._node.name] = entry + def _ExpandEntries(self): + """Expand any entries that are permitted to""" + exp_entry = None + for entry in self._entries.values(): + if exp_entry: + exp_entry.ExpandToLimit(entry.offset) + exp_entry = None + if entry.expand_size: + exp_entry = entry + if exp_entry: + exp_entry.ExpandToLimit(self._size) + def CheckEntries(self): - """Check that entries do not overlap or extend outside the section""" + """Check that entries do not overlap or extend outside the section + + This also sorts entries, if needed and expands + """ if self._sort: self._SortEntries() + self._ExpandEntries() offset = 0 prev_name = 'None' for entry in self._entries.values(): entry.CheckOffset() if (entry.offset < self._skip_at_start or - entry.offset >= self._skip_at_start + self._size): + entry.offset + entry.size > self._skip_at_start + self._size): entry.Raise("Offset %#x (%d) is outside the section starting " "at %#x (%d)" % (entry.offset, entry.offset, self._skip_at_start, @@ -409,7 +448,17 @@ class Section(object): source_entry.Raise("Cannot find node for phandle %d" % phandle) for entry in self._entries.values(): if entry._node == node: - if entry.data is None: - return None - return entry.data + return entry.GetData() source_entry.Raise("Cannot find entry for node '%s'" % node.name) + + def ExpandSize(self, size): + if size != self._size: + self._size = size + + def GetRootSkipAtStart(self): + if self._parent_section: + return self._parent_section.GetRootSkipAtStart() + return self._skip_at_start + + def GetImageSize(self): + return self._image._size |