def ObtainContents(self):
"""Obtain the contents of the FIT
This adds the 'data' properties to the input ITB (Image-tree Binary)
then runs mkimage to process it.
"""
# self._BuildInput() either returns bytes or raises an exception.
data = self._BuildInput(self._fdt)
uniq = self.GetUniqueName()
input_fname = tools.GetOutputFilename('%s.itb' % uniq)
output_fname = tools.GetOutputFilename('%s.fit' % uniq)
tools.WriteFile(input_fname, data)
tools.WriteFile(output_fname, data)
args = []
ext_offset = self._fit_props.get('fit,external-offset')
if ext_offset is not None:
args += [
'-E', '-p',
'%x' % fdt_util.fdt32_to_cpu(ext_offset.value)
]
tools.Run('mkimage', '-t', '-F', output_fname, *args)
self.SetContents(tools.ReadFile(output_fname))
return True
def ObtainContents(self):
"""Obtain the contents of the FIT
This adds the 'data' properties to the input ITB (Image-tree Binary)
then runs mkimage to process it.
"""
# self._BuildInput() either returns bytes or raises an exception.
data = self._BuildInput(self._fdt)
uniq = self.GetUniqueName()
input_fname = tools.GetOutputFilename('%s.itb' % uniq)
output_fname = tools.GetOutputFilename('%s.fit' % uniq)
tools.WriteFile(input_fname, data)
tools.WriteFile(output_fname, data)
args = {}
ext_offset = self._fit_props.get('fit,external-offset')
if ext_offset is not None:
args = {
'external': True,
'pad': fdt_util.fdt32_to_cpu(ext_offset.value)
}
if self.mkimage.run(reset_timestamp=True,
output_fname=output_fname,
**args) is not None:
self.SetContents(tools.ReadFile(output_fname))
else:
# Bintool is missing; just use empty data as the output
self.record_missing_bintool(self.mkimage)
self.SetContents(tools.GetBytes(0, 1024))
return True
def ExtractEntries(image_fname,
output_fname,
outdir,
entry_paths,
decomp=True,
alt_format=None):
"""Extract the data from one or more entries and write it to files
Args:
image_fname: Image filename to process
output_fname: Single output filename to use if extracting one file, None
otherwise
outdir: Output directory to use (for any number of files), else None
entry_paths: List of entry paths to extract
decomp: True to decompress the entry data
Returns:
List of EntryInfo records that were written
"""
image = Image.FromFile(image_fname)
if alt_format == 'list':
ShowAltFormats(image)
return
# Output an entry to a single file, as a special case
if output_fname:
if not entry_paths:
raise ValueError('Must specify an entry path to write with -f')
if len(entry_paths) != 1:
raise ValueError(
'Must specify exactly one entry path to write with -f')
entry = image.FindEntryPath(entry_paths[0])
data = entry.ReadData(decomp, alt_format)
tools.WriteFile(output_fname, data)
tout.Notice("Wrote %#x bytes to file '%s'" % (len(data), output_fname))
return
# Otherwise we will output to a path given by the entry path of each entry.
# This means that entries will appear in subdirectories if they are part of
# a sub-section.
einfos = image.GetListEntries(entry_paths)[0]
tout.Notice('%d entries match and will be written' % len(einfos))
for einfo in einfos:
entry = einfo.entry
data = entry.ReadData(decomp, alt_format)
path = entry.GetPath()[1:]
fname = os.path.join(outdir, path)
# If this entry has children, create a directory for it and put its
# data in a file called 'root' in that directory
if entry.GetEntries():
if fname and not os.path.exists(fname):
os.makedirs(fname)
fname = os.path.join(fname, 'root')
tout.Notice("Write entry '%s' size %x to '%s'" %
(entry.GetPath(), len(data), fname))
tools.WriteFile(fname, data)
return einfos
def _BuildIfwi(self):
"""Build the contents of the IFWI and write it to the 'data' property"""
# Create the IFWI file if needed
if self._convert_fit:
inname = self._pathname
outname = tools.GetOutputFilename('ifwi.bin')
tools.RunIfwiTool(inname, tools.CMD_CREATE, outname)
self._filename = 'ifwi.bin'
self._pathname = outname
else:
# Provide a different code path here to ensure we have test coverage
outname = self._pathname
# Delete OBBP if it is there, then add the required new items.
tools.RunIfwiTool(outname, tools.CMD_DELETE, subpart='OBBP')
for entry in self._ifwi_entries.values():
# First get the input data and put it in a file
data = entry.GetData()
uniq = self.GetUniqueName()
input_fname = tools.GetOutputFilename('input.%s' % uniq)
tools.WriteFile(input_fname, data)
tools.RunIfwiTool(outname,
tools.CMD_REPLACE if entry._ifwi_replace else tools.CMD_ADD,
input_fname, entry._ifwi_subpart, entry._ifwi_entry_name)
self.ReadBlobContents()
return True
def _HandleMake(self, commit, brd, stage, cwd, *args, **kwargs):
"""Handle execution of 'make'
Args:
commit: Commit object that is being built
brd: Board object that is being built
stage: Stage that we are at (mrproper, config, build)
cwd: Directory where make should be run
args: Arguments to pass to make
kwargs: Arguments to pass to command.RunPipe()
"""
self._make_calls += 1
if stage == 'mrproper':
return command.CommandResult(return_code=0)
elif stage == 'config':
return command.CommandResult(
return_code=0, combined='Test configuration complete')
elif stage == 'build':
stderr = ''
out_dir = ''
for arg in args:
if arg.startswith('O='):
out_dir = arg[2:]
fname = os.path.join(cwd or '', out_dir, 'u-boot')
tools.WriteFile(fname, b'U-Boot')
if type(commit) is not str:
stderr = self._error.get((brd.target, commit.sequence))
if stderr:
return command.CommandResult(return_code=1, stderr=stderr)
return command.CommandResult(return_code=0)
# Not handled, so abort
print('make', stage)
sys.exit(1)
def parse_atf_source(srcdir, dstfile, oldfile):
"""parse_atf_source(): Parse the ATF source tree and update this file
Args:
srcdir (str): Path to 'arm-trusted-firmware' directory. Get this from:
https://github.com/ARM-software/arm-trusted-firmware.git
dstfile (str): File to write new code to, if an update is needed
oldfile (str): Python source file to compare against
Raises:
ValueError: srcdir readme.rst is missing or the first line does not
match what is expected
"""
# We expect a readme file
readme_fname = os.path.join(srcdir, 'readme.rst')
if not os.path.exists(readme_fname):
raise ValueError(
f"Expected file '{readme_fname}' - try using -s to specify the "
'arm-trusted-firmware directory')
readme = tools.ReadFile(readme_fname, binary=False)
first_line = 'Trusted Firmware-A'
if readme.splitlines()[0] != first_line:
raise ValueError(f"'{readme_fname}' does not start with '{first_line}'")
macros = parse_macros(srcdir)
names = parse_names(srcdir)
output = create_code_output(macros, names)
orig = tools.ReadFile(oldfile, binary=False)
re_fip_list = re.compile(r'(.*FIP_TYPE_LIST = \[).*?( ] # end.*)', re.S)
mat = re_fip_list.match(orig)
new_code = mat.group(1) + '\n' + output + mat.group(2) if mat else output
if new_code == orig:
print(f"Existing code in '{oldfile}' is up-to-date")
else:
tools.WriteFile(dstfile, new_code, binary=False)
print(f'Needs update, try:\n\tmeld {dstfile} {oldfile}')
def handle_download(_):
"""Take the tools.Download() function by writing a file"""
if self.seq:
raise urllib.error.URLError('not found')
self.seq += 1
tools.WriteFile(fname, expected)
return fname, dirname
def fake_run(*cmd):
if cmd[0] == 'make':
# See Bintool.build_from_git()
tmpdir = cmd[2]
self.fname = os.path.join(tmpdir, 'pathname')
if write_file:
tools.WriteFile(self.fname, b'hello')
def GetVblock(self):
# Join up the data files to be signed
input_data = b''
for entry_phandle in self.content:
data = self.section.GetContentsByPhandle(entry_phandle, self)
if data is None:
# Data not available yet
return False
input_data += data
uniq = self.GetUniqueName()
output_fname = tools.GetOutputFilename('vblock.%s' % uniq)
input_fname = tools.GetOutputFilename('input.%s' % uniq)
tools.WriteFile(input_fname, input_data)
prefix = self.keydir + '/'
args = [
'vbutil_firmware',
'--vblock', output_fname,
'--keyblock', prefix + self.keyblock,
'--signprivate', prefix + self.signprivate,
'--version', '%d' % self.version,
'--fv', input_fname,
'--kernelkey', prefix + self.kernelkey,
'--flags', '%d' % self.preamble_flags,
]
#out.Notice("Sign '%s' into %s" % (', '.join(self.value), self.label))
stdout = tools.Run('futility', *args)
return tools.ReadFile(output_fname)
def test_struct_scan_errors(self):
"""Test scanning a header file with an invalid unicode file"""
output = tools.GetOutputFilename('output.h')
tools.WriteFile(output, b'struct this is a test \x81 of bad unicode')
scan = src_scan.Scanner(None, None)
with test_util.capture_sys_output() as (stdout, _):
scan.scan_header(output)
self.assertIn('due to unicode error', stdout.getvalue())
def ReadBlobContents(self):
if self._strip:
uniq = self.GetUniqueName()
out_fname = tools.GetOutputFilename('%s.stripped' % uniq)
tools.WriteFile(out_fname, tools.ReadFile(self._pathname))
tools.Run('strip', out_fname)
self._pathname = out_fname
super().ReadBlobContents()
return True
def test_changes(self):
"""Check handling of a source file that does/doesn't need changes"""
self.setup_readme()
self.setup_macro()
self.setup_name()
# Check generating the file when changes are needed
tools.WriteFile(self.src_file,
'''
# This is taken from tbbr_config.c in ARM Trusted Firmware
FIP_TYPE_LIST = [
# ToC Entry UUIDs
FipType('scp-fwu-cfg', 'SCP Firmware Updater Configuration FWU SCP_BL2U',
[0x65, 0x92, 0x27, 0x03, 0x2f, 0x74, 0xe6, 0x44,
0x8d, 0xff, 0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10]),
] # end
blah de blah
''',
binary=False)
with test_util.capture_sys_output() as (stdout, _):
fip_util.main(self.args, self.src_file)
self.assertIn('Needs update', stdout.getvalue())
# Check generating the file when no changes are needed
tools.WriteFile(self.src_file,
'''
# This is taken from tbbr_config.c in ARM Trusted Firmware
FIP_TYPE_LIST = [
# ToC Entry UUIDs
FipType('scp-fwu-cfg', 'SCP Firmware Updater Configuration FWU SCP_BL2U',
[0x65, 0x92, 0x27, 0x03, 0x2f, 0x74, 0xe6, 0x44,
0x8d, 0xff, 0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10]),
FipType('ap-fwu-cfg', 'AP Firmware Updater Configuration BL2U',
[0x60, 0xb3, 0xeb, 0x37, 0xc1, 0xe5, 0xea, 0x41,
0x9d, 0xf3, 0x19, 0xed, 0xa1, 0x1f, 0x68, 0x01]),
] # end
blah blah''',
binary=False)
with test_util.capture_sys_output() as (stdout, _):
fip_util.main(self.args, self.src_file)
self.assertIn('is up-to-date', stdout.getvalue())
def _compare_expected_cbfs(self, data, cbfstool_fname):
"""Compare against what cbfstool creates
This compares what binman creates with what cbfstool creates for what
is proportedly the same thing.
Args:
data: CBFS created by binman
cbfstool_fname: CBFS created by cbfstool
"""
if not self.have_cbfstool or not self.have_lz4:
return
expect = tools.ReadFile(cbfstool_fname)
if expect != data:
tools.WriteFile('/tmp/expect', expect)
tools.WriteFile('/tmp/actual', data)
print(
'diff -y <(xxd -g1 /tmp/expect) <(xxd -g1 /tmp/actual) | colordiff'
)
self.fail('cbfstool produced a different result')
def test_no_debug(self):
"""Test running without the -D flag"""
self.setup_readme()
self.setup_macro()
self.setup_name()
args = self.args.copy()
args.remove('-D')
tools.WriteFile(self.src_file, '', binary=False)
with test_util.capture_sys_output():
fip_util.main(args, self.src_file)
def create_fiptool_image(self):
"""Create an image with fiptool which we can use for testing
Returns:
FipReader: reader for the image
"""
fwu = os.path.join(self._indir, 'fwu')
tools.WriteFile(fwu, self.fwu_data)
tb_fw = os.path.join(self._indir, 'tb_fw')
tools.WriteFile(tb_fw, self.tb_fw_data)
other_fw = os.path.join(self._indir, 'other_fw')
tools.WriteFile(other_fw, self.other_fw_data)
fname = tools.GetOutputFilename('data.fip')
uuid = 'e3b78d9e-4a64-11ec-b45c-fba2b9b49788'
FIPTOOL.create_new(fname, 8, 0x123, fwu, tb_fw, uuid, other_fw)
return fip_util.FipReader(tools.ReadFile(fname))
def _make_input_file(cls, fname, contents):
"""Create a new test input file, creating directories as needed
Args:
fname: Filename to create
contents: File contents to write in to the file
Returns:
Full pathname of file created
"""
pathname = os.path.join(cls._indir, fname)
tools.WriteFile(pathname, contents)
return pathname
def create_fiptool_image(self):
"""Create an image with fiptool which we can use for testing
Returns:
FipReader: reader for the image
"""
fwu = os.path.join(self._indir, 'fwu')
tools.WriteFile(fwu, self.fwu_data)
tb_fw = os.path.join(self._indir, 'tb_fw')
tools.WriteFile(tb_fw, self.tb_fw_data)
other_fw = os.path.join(self._indir, 'other_fw')
tools.WriteFile(other_fw, self.other_fw_data)
fname = tools.GetOutputFilename('data.fip')
uuid = 'e3b78d9e-4a64-11ec-b45c-fba2b9b49788'
fip_util.fiptool('create', '--align', '8', '--plat-toc-flags', '0x123',
'--fwu', fwu, '--tb-fw', tb_fw, '--blob',
f'uuid={uuid},file={other_fw}', fname)
return fip_util.FipReader(tools.ReadFile(fname))
def compress(self, indata):
"""Compress data with lz4
Args:
indata (bytes): Data to compress
Returns:
bytes: Compressed data
"""
with tempfile.NamedTemporaryFile(prefix='comp.tmp',
dir=tools.GetOutputDir()) as tmp:
tools.WriteFile(tmp.name, indata)
args = ['--no-frame-crc', '-B4', '-5', '-c', tmp.name]
return self.run_cmd(*args, binary=True)
def decompress(self, indata):
"""Decompress data with lz4
Args:
indata (bytes): Data to decompress
Returns:
bytes: Decompressed data
"""
with tempfile.NamedTemporaryFile(prefix='decomp.tmp',
dir=tools.GetOutputDir()) as inf:
tools.WriteFile(inf.name, indata)
args = ['-cd', inf.name]
return self.run_cmd(*args, binary=True)
def FromFile(cls, fname):
"""Convert an image file into an Image for use in binman
Args:
fname: Filename of image file to read
Returns:
Image object on success
Raises:
ValueError if something goes wrong
"""
data = tools.ReadFile(fname)
size = len(data)
# First look for an image header
pos = image_header.LocateHeaderOffset(data)
if pos is None:
# Look for the FDT map
pos = fdtmap.LocateFdtmap(data)
if pos is None:
raise ValueError('Cannot find FDT map in image')
# We don't know the FDT size, so check its header first
probe_dtb = fdt.Fdt.FromData(data[pos + fdtmap.FDTMAP_HDR_LEN:pos +
256])
dtb_size = probe_dtb.GetFdtObj().totalsize()
fdtmap_data = data[pos:pos + dtb_size + fdtmap.FDTMAP_HDR_LEN]
fdt_data = fdtmap_data[fdtmap.FDTMAP_HDR_LEN:]
out_fname = tools.GetOutputFilename('fdtmap.in.dtb')
tools.WriteFile(out_fname, fdt_data)
dtb = fdt.Fdt(out_fname)
dtb.Scan()
# Return an Image with the associated nodes
root = dtb.GetRoot()
image = Image('image',
root,
copy_to_orig=False,
ignore_missing=True,
missing_etype=True)
image.image_node = fdt_util.GetString(root, 'image-node', 'image')
image.fdtmap_dtb = dtb
image.fdtmap_data = fdtmap_data
image._data = data
image._filename = fname
image.image_name, _ = os.path.splitext(fname)
return image
def ObtainContents(self):
data = b''
for entry in self._mkimage_entries.values():
# First get the input data and put it in a file. If not available,
# try later.
if not entry.ObtainContents():
return False
data += entry.GetData()
uniq = self.GetUniqueName()
input_fname = tools.GetOutputFilename('mkimage.%s' % uniq)
tools.WriteFile(input_fname, data)
output_fname = tools.GetOutputFilename('mkimage-out.%s' % uniq)
tools.Run('mkimage', '-d', input_fname, *self._args, output_fname)
self.SetContents(tools.ReadFile(output_fname))
return True
def UpdateFdtContents(etype, data):
"""Update the contents of a particular device tree
The device tree is updated and written back to its file. This affects what
is returned from future called to GetFdtContents(), etc.
Args:
etype: Entry type (e.g. 'u-boot-dtb')
data: Data to replace the DTB with
"""
dtb, fname, entry = output_fdt_info[etype]
dtb_fname = dtb.GetFilename()
tools.WriteFile(dtb_fname, data)
dtb = fdt.FdtScan(dtb_fname)
output_fdt_info[etype] = [dtb, fname, entry]
def test_fiptool_list(self):
"""Create a FIP and check that fiptool can read it"""
fwu = b'my data'
tb_fw = b'some more data'
fip = fip_util.FipWriter(0x123, 0x10)
fip.add_entry('fwu', fwu, 0x456)
fip.add_entry('tb-fw', tb_fw, 0)
fip.add_entry(bytes(range(16)), tb_fw, 0)
data = fip.get_data()
fname = tools.GetOutputFilename('data.fip')
tools.WriteFile(fname, data)
result = FIPTOOL.info(fname)
self.assertEqual(
'''Firmware Updater NS_BL2U: offset=0xB0, size=0x7, cmdline="--fwu"
Trusted Boot Firmware BL2: offset=0xC0, size=0xE, cmdline="--tb-fw"
00010203-0405-0607-0809-0A0B0C0D0E0F: offset=0xD0, size=0xE, cmdline="--blob"
''', result)
def decompress(self, indata):
"""Decompress data with lzma_alone
Args:
indata (bytes): Data to decompress
Returns:
bytes: Decompressed data
"""
with tempfile.NamedTemporaryFile(prefix='decomp.tmp',
dir=tools.GetOutputDir()) as inf:
tools.WriteFile(inf.name, indata)
with tempfile.NamedTemporaryFile(prefix='compo.otmp',
dir=tools.GetOutputDir()) as outf:
args = ['d', inf.name, outf.name]
self.run_cmd(*args, binary=True)
return tools.ReadFile(outf.name, binary=True)
def make_commit_with_file(self, subject, body, fname, text):
"""Create a file and add it to the git repo with a new commit
Args:
subject (str): Subject for the commit
body (str): Body text of the commit
fname (str): Filename of file to create
text (str): Text to put into the file
"""
path = os.path.join(self.gitdir, fname)
tools.WriteFile(path, text, binary=False)
index = self.repo.index
index.add(fname)
author = pygit2.Signature('Test user', '*****@*****.**')
committer = author
tree = index.write_tree()
message = subject + '\n' + body
self.repo.create_commit('HEAD', author, committer, message, tree,
[self.repo.head.target])
def adjust_cfg_file(fname, adjust_cfg):
"""Make adjustments to a .config file
Args:
fname (str): Filename of .config file to change
adjust_cfg (dict of str): Changes to make to .config file before
building:
key: str config to change, without the CONFIG_ prefix, e.g.
FRED
value: str change to make (C is config option without prefix):
C to enable C
~C to disable C
C=val to set the value of C (val must have quotes if C is
a string Kconfig)
"""
lines = tools.ReadFile(fname, binary=False).splitlines()
out_lines = adjust_cfg_lines(lines, adjust_cfg)
out = '\n'.join(out_lines) + '\n'
tools.WriteFile(fname, out, binary=False)
def PrepareFromLoadedData(image):
"""Get device tree files ready for use with a loaded image
Loaded images are different from images that are being created by binman,
since there is generally already an fdtmap and we read the description from
that. This provides the position and size of every entry in the image with
no calculation required.
This function uses the same output_fdt_info[] as Prepare(). It finds the
device tree files, adds a reference to the fdtmap and sets the FDT path
prefix to translate from the fdtmap (where the root node is the image node)
to the normal device tree (where the image node is under a /binman node).
Args:
images: List of images being used
"""
global output_fdt_info, main_dtb, fdt_path_prefix
tout.Info('Preparing device trees')
output_fdt_info.clear()
fdt_path_prefix = ''
output_fdt_info['fdtmap'] = [image.fdtmap_dtb, 'u-boot.dtb', None]
main_dtb = None
tout.Info(" Found device tree type 'fdtmap' '%s'" %
image.fdtmap_dtb.name)
for etype, value in image.GetFdts().items():
entry, fname = value
out_fname = tools.GetOutputFilename('%s.dtb' % entry.etype)
tout.Info(" Found device tree type '%s' at '%s' path '%s'" %
(etype, out_fname, entry.GetPath()))
entry._filename = entry.GetDefaultFilename()
data = entry.ReadData()
tools.WriteFile(out_fname, data)
dtb = fdt.Fdt(out_fname)
dtb.Scan()
image_node = dtb.GetNode('/binman')
if 'multiple-images' in image_node.props:
image_node = dtb.GetNode('/binman/%s' % image.image_node)
fdt_path_prefix = image_node.path
output_fdt_info[etype] = [dtb, None, entry]
tout.Info(" FDT path prefix '%s'" % fdt_path_prefix)
def GetVblock(self, required):
"""Get the contents of this entry
Args:
required: True if the data must be present, False if it is OK to
return None
Returns:
bytes content of the entry, which is the signed vblock for the
provided data
"""
# Join up the data files to be signed
input_data = self.GetContents(required)
if input_data is None:
return None
uniq = self.GetUniqueName()
output_fname = tools.GetOutputFilename('vblock.%s' % uniq)
input_fname = tools.GetOutputFilename('input.%s' % uniq)
tools.WriteFile(input_fname, input_data)
prefix = self.keydir + '/'
args = [
'vbutil_firmware',
'--vblock',
output_fname,
'--keyblock',
prefix + self.keyblock,
'--signprivate',
prefix + self.signprivate,
'--version',
'%d' % self.version,
'--fv',
input_fname,
'--kernelkey',
prefix + self.kernelkey,
'--flags',
'%d' % self.preamble_flags,
]
#out.Notice("Sign '%s' into %s" % (', '.join(self.value), self.label))
stdout = tools.Run('futility', *args)
return tools.ReadFile(output_fname)
def ObtainContents(self):
data = b''
for entry in self._mkimage_entries.values():
# First get the input data and put it in a file. If not available,
# try later.
if not entry.ObtainContents():
return False
data += entry.GetData()
uniq = self.GetUniqueName()
input_fname = tools.GetOutputFilename('mkimage.%s' % uniq)
tools.WriteFile(input_fname, data)
output_fname = tools.GetOutputFilename('mkimage-out.%s' % uniq)
if self.mkimage.run_cmd('-d', input_fname, *self._args,
output_fname) is not None:
self.SetContents(tools.ReadFile(output_fname))
else:
# Bintool is missing; just use the input data as the output
self.record_missing_bintool(self.mkimage)
self.SetContents(data)
return True
def Prepare(images, dtb):
"""Get device tree files ready for use
This sets up a set of device tree files that can be retrieved by
GetAllFdts(). This includes U-Boot proper and any SPL device trees.
Args:
images: List of images being used
dtb: Main dtb
"""
global output_fdt_info, main_dtb, fdt_path_prefix
# Import these here in case libfdt.py is not available, in which case
# the above help option still works.
from dtoc import fdt
from dtoc import fdt_util
# If we are updating the DTBs we need to put these updated versions
# where Entry_blob_dtb can find them. We can ignore 'u-boot.dtb'
# since it is assumed to be the one passed in with options.dt, and
# was handled just above.
main_dtb = dtb
output_fdt_info.clear()
fdt_path_prefix = ''
output_fdt_info['u-boot-dtb'] = [dtb, 'u-boot.dtb', None]
output_fdt_info['u-boot-spl-dtb'] = [dtb, 'spl/u-boot-spl.dtb', None]
output_fdt_info['u-boot-tpl-dtb'] = [dtb, 'tpl/u-boot-tpl.dtb', None]
if not use_fake_dtb:
fdt_set = {}
for image in images.values():
fdt_set.update(image.GetFdts())
for etype, other in fdt_set.items():
entry, other_fname = other
infile = tools.GetInputFilename(other_fname)
other_fname_dtb = fdt_util.EnsureCompiled(infile)
out_fname = tools.GetOutputFilename('%s.out' %
os.path.split(other_fname)[1])
tools.WriteFile(out_fname, tools.ReadFile(other_fname_dtb))
other_dtb = fdt.FdtScan(out_fname)
output_fdt_info[etype] = [other_dtb, out_fname, entry]
