[U-Boot] [PATCH 28/31] binman: Record the parent section of each section

[Simon Glass]

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 at chromium.org>
---

 tools/binman/bsection.py      | 5 ++++-
 tools/binman/etype/section.py | 3 ++-
 tools/binman/image.py         | 5 +++--
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/tools/binman/bsection.py b/tools/binman/bsection.py
index 650e9ba353f..e4c1900b17f 100644
--- a/tools/binman/bsection.py
+++ b/tools/binman/bsection.py
@@ -24,6 +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
@@ -46,14 +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
diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index 005a9f9cb2e..7f1b4136049 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -32,7 +32,8 @@ class Entry_section(Entry):
     """
     def __init__(self, section, etype, node):
         Entry.__init__(self, section, etype, node)
-        self._section = bsection.Section(node.name, node)
+        self._section = bsection.Section(node.name, section, node,
+                                         section._image)
 
     def GetFdtSet(self):
         return self._section.GetFdtSet()
diff --git a/tools/binman/image.py b/tools/binman/image.py
index 4b922b51c42..e113a60ac9a 100644
--- a/tools/binman/image.py
+++ b/tools/binman/image.py
@@ -42,7 +42,8 @@ class Image:
         self._size = None
         self._filename = '%s.bin' % self._name
         if test:
-            self._section = bsection.Section('main-section', self._node, True)
+            self._section = bsection.Section('main-section', None, self._node,
+                                             self, True)
         else:
             self._ReadNode()
 
@@ -52,7 +53,7 @@ class Image:
         filename = fdt_util.GetString(self._node, 'filename')
         if filename:
             self._filename = filename
-        self._section = bsection.Section('main-section', self._node)
+        self._section = bsection.Section('main-section', None, self._node, self)
 
     def GetFdtSet(self):
         """Get the set of device tree files used by this image"""
-- 
2.19.0.397.gdd90340f6a-goog