binman: Allow entry args to be required
If an entry argument is needed by an entry but the entry argument is not
present, then a strange error can occur when trying to read the file.
Fix this by allowing arguments to be required. Select this option for the
cros-ec-rw entry. If a filename is provided in the node, allow that to be
used.
Also tidy up a few related tests to make the error string easier to find,
and fully ignore unused return values.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/README.entries b/tools/binman/README.entries
index bf8edce..97bfae1 100644
--- a/tools/binman/README.entries
+++ b/tools/binman/README.entries
@@ -60,7 +60,7 @@
Properties / Entry arguments:
- <xxx>-path: Filename containing the contents of this entry (optional,
- defaults to 0)
+ defaults to None)
where <xxx> is the blob_fname argument to the constructor.
@@ -691,6 +691,11 @@
name-prefix: Adds a prefix to the name of every entry in the section
when writing out the map
+Properties:
+ _allow_missing: True if this section permits external blobs to be
+ missing their contents. The second will produce an image but of
+ course it will not work.
+
Since a section is also an entry, it inherits all the properies of entries
too.