@@ -48,6 +48,9 @@ Entry: blob-ext: Entry containing an externally built binary blob
Note: This should not be used by itself. It is normally used as a parent
class by other entry types.
+If the file providing this blob is missing, binman can optionally ignore it
+and produce a broken image with a warning.
+
See 'blob' for Properties / Entry arguments.
@@ -53,6 +53,8 @@ controlled by a description in the board device tree.'''
help='Add a path to the list of directories to use for input files')
build_parser.add_argument('-m', '--map', action='store_true',
default=False, help='Output a map file for each image')
+ build_parser.add_argument('-M', '--allow-missing', action='store_true',
+ default=False, help='Allow external blobs to be missing')
build_parser.add_argument('-O', '--outdir', type=str,
action='store', help='Path to directory to use for intermediate and '
'output files')
@@ -387,7 +387,7 @@ def PrepareImagesAndDtbs(dtb_fname, select_images, update_fdt):
def ProcessImage(image, update_fdt, write_map, get_contents=True,
- allow_resize=True):
+ allow_resize=True, allow_missing=False):
"""Perform all steps for this image, including checking and # writing it.
This means that errors found with a later image will be reported after
@@ -402,8 +402,10 @@ def ProcessImage(image, update_fdt, write_map, get_contents=True,
the contents is already present
allow_resize: True to allow entries to change size (this does a re-pack
of the entries), False to raise an exception
+ allow_missing: Allow blob_ext objects to be missing
"""
if get_contents:
+ image.SetAllowMissing(allow_missing)
image.GetEntryContents()
image.GetEntryOffsets()
@@ -523,7 +525,8 @@ def Binman(args):
images = PrepareImagesAndDtbs(dtb_fname, args.image,
args.update_fdt)
for image in images.values():
- ProcessImage(image, args.update_fdt, args.map)
+ ProcessImage(image, args.update_fdt, args.map,
+ allow_missing=args.allow_missing)
# Write the updated FDTs to our output files
for dtb_item in state.GetAllFdts():
@@ -18,6 +18,9 @@ class Entry_blob_ext(Entry_blob):
Note: This should not be used by itself. It is normally used as a parent
class by other entry types.
+ If the file providing this blob is missing, binman can optionally ignore it
+ and produce a broken image with a warning.
+
See 'blob' for Properties / Entry arguments.
"""
def __init__(self, section, etype, node):
@@ -26,6 +29,10 @@ class Entry_blob_ext(Entry_blob):
def ObtainContents(self):
self._filename = self.GetDefaultFilename()
- self._pathname = tools.GetInputFilename(self._filename)
- self.ReadBlobContents()
- return True
+ self._pathname = tools.GetInputFilename(self._filename,
+ self.section.GetAllowMissing())
+ # Allow the file to be missing
+ if not self._pathname:
+ self.SetContents(b'')
+ return True
+ return super().ObtainContents()
@@ -49,6 +49,7 @@ class Entry_section(Entry):
self._sort = False
self._skip_at_start = None
self._end_4gb = False
+ self._allow_missing = False
def ReadNode(self):
"""Read properties from the image node"""
@@ -535,3 +536,19 @@ class Entry_section(Entry):
def WriteChildData(self, child):
return True
+
+ def SetAllowMissing(self, allow_missing):
+ """Set whether a section allows missing external blobs
+
+ Args:
+ allow_missing: True if allowed, False if not allowed
+ """
+ self._allow_missing = allow_missing
+
+ def GetAllowMissing(self):
+ """Get whether a section allows missing external blobs
+
+ Returns:
+ True if allowed, False if not allowed
+ """
+ return self._allow_missing
@@ -285,7 +285,7 @@ class TestFunctional(unittest.TestCase):
def _DoTestFile(self, fname, debug=False, map=False, update_dtb=False,
entry_args=None, images=None, use_real_dtb=False,
- verbosity=None):
+ verbosity=None, allow_missing=False):
"""Run binman with a given test file
Args:
@@ -319,6 +319,8 @@ class TestFunctional(unittest.TestCase):
if entry_args:
for arg, value in entry_args.items():
args.append('-a%s=%s' % (arg, value))
+ if allow_missing:
+ args.append('-M')
if images:
for image in images:
args += ['-i', image]
@@ -3376,6 +3378,10 @@ class TestFunctional(unittest.TestCase):
self.assertIn("Filename 'missing-file' not found in input path",
str(e.exception))
+ def testExtblobMissingOk(self):
+ """Test an image with an missing external blob that is allowed"""
+ self._DoTestFile('158_blob_ext_missing.dts', allow_missing=True)
+
if __name__ == "__main__":
unittest.main()
@@ -114,14 +114,16 @@ def SetInputDirs(dirname):
indir = dirname
tout.Debug("Using input directories %s" % indir)
-def GetInputFilename(fname):
+def GetInputFilename(fname, allow_missing=False):
"""Return a filename for use as input.
Args:
fname: Filename to use for new file
+ allow_missing: True if the filename can be missing
Returns:
- The full path of the filename, within the input directory
+ The full path of the filename, within the input directory, or
+ None on error
"""
if not indir or fname[:1] == '/':
return fname
@@ -130,6 +132,8 @@ def GetInputFilename(fname):
if os.path.exists(pathname):
return pathname
+ if allow_missing:
+ return None
raise ValueError("Filename '%s' not found in input path (%s) (cwd='%s')" %
(fname, ','.join(indir), os.getcwd()))
Sometimes it is useful to build an image even though external binaries are not present. This allows the build system to continue to function without these files, albeit not producing valid images. U-Boot does with with ATF (ARM Trusted Firmware) today. Add a new flag to binman to request this behaviour. Signed-off-by: Simon Glass <sjg at chromium.org> --- (no changes since v1) tools/binman/README.entries | 3 +++ tools/binman/cmdline.py | 2 ++ tools/binman/control.py | 7 +++++-- tools/binman/etype/blob_ext.py | 13 ++++++++++--- tools/binman/etype/section.py | 17 +++++++++++++++++ tools/binman/ftest.py | 8 +++++++- tools/patman/tools.py | 8 ++++++-- 7 files changed, 50 insertions(+), 8 deletions(-)