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u-boot/tools/binman/ftest.py
Simon Glass a6cb995096 binman: Add command-line support for replacing entries 
Add a 'replace' command to binman to permit entries to be replaced, either
individually or all at once (using a filter).

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-29 09:38:06 -06:00

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# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2016 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# To run a single test, change to this directory, and:
#
# python -m unittest func_test.TestFunctional.testHelp
from __future__ import print_function
import hashlib
from optparse import OptionParser
import os
import shutil
import struct
import sys
import tempfile
import unittest
import binman
import cbfs_util
import cmdline
import command
import control
import elf
import fdt
from etype import fdtmap
from etype import image_header
import fdt_util
import fmap_util
import test_util
import gzip
from image import Image
import state
import tools
import tout
# Contents of test files, corresponding to different entry types
U_BOOT_DATA = b'1234'
U_BOOT_IMG_DATA = b'img'
U_BOOT_SPL_DATA = b'56780123456789abcde'
U_BOOT_TPL_DATA = b'tpl'
BLOB_DATA = b'89'
ME_DATA = b'0abcd'
VGA_DATA = b'vga'
U_BOOT_DTB_DATA = b'udtb'
U_BOOT_SPL_DTB_DATA = b'spldtb'
U_BOOT_TPL_DTB_DATA = b'tpldtb'
X86_START16_DATA = b'start16'
X86_START16_SPL_DATA = b'start16spl'
X86_START16_TPL_DATA = b'start16tpl'
PPC_MPC85XX_BR_DATA = b'ppcmpc85xxbr'
U_BOOT_NODTB_DATA = b'nodtb with microcode pointer somewhere in here'
U_BOOT_SPL_NODTB_DATA = b'splnodtb with microcode pointer somewhere in here'
U_BOOT_TPL_NODTB_DATA = b'tplnodtb with microcode pointer somewhere in here'
FSP_DATA = b'fsp'
CMC_DATA = b'cmc'
VBT_DATA = b'vbt'
MRC_DATA = b'mrc'
TEXT_DATA = 'text'
TEXT_DATA2 = 'text2'
TEXT_DATA3 = 'text3'
CROS_EC_RW_DATA = b'ecrw'
GBB_DATA = b'gbbd'
BMPBLK_DATA = b'bmp'
VBLOCK_DATA = b'vblk'
FILES_DATA = (b"sorry I'm late\nOh, don't bother apologising, I'm " +
b"sorry you're alive\n")
COMPRESS_DATA = b'compress xxxxxxxxxxxxxxxxxxxxxx data'
REFCODE_DATA = b'refcode'
# The expected size for the device tree in some tests
EXTRACT_DTB_SIZE = 0x3c9
# Properties expected to be in the device tree when update_dtb is used
BASE_DTB_PROPS = ['offset', 'size', 'image-pos']
# Extra properties expected to be in the device tree when allow-repack is used
REPACK_DTB_PROPS = ['orig-offset', 'orig-size']
class TestFunctional(unittest.TestCase):
"""Functional tests for binman
Most of these use a sample .dts file to build an image and then check
that it looks correct. The sample files are in the test/ subdirectory
and are numbered.
For each entry type a very small test file is created using fixed
string contents. This makes it easy to test that things look right, and
debug problems.
In some cases a 'real' file must be used - these are also supplied in
the test/ diurectory.
"""
@classmethod
def setUpClass(self):
global entry
import entry
# Handle the case where argv[0] is 'python'
self._binman_dir = os.path.dirname(os.path.realpath(sys.argv[0]))
self._binman_pathname = os.path.join(self._binman_dir, 'binman')
# Create a temporary directory for input files
self._indir = tempfile.mkdtemp(prefix='binmant.')
# Create some test files
TestFunctional._MakeInputFile('u-boot.bin', U_BOOT_DATA)
TestFunctional._MakeInputFile('u-boot.img', U_BOOT_IMG_DATA)
TestFunctional._MakeInputFile('spl/u-boot-spl.bin', U_BOOT_SPL_DATA)
TestFunctional._MakeInputFile('tpl/u-boot-tpl.bin', U_BOOT_TPL_DATA)
TestFunctional._MakeInputFile('blobfile', BLOB_DATA)
TestFunctional._MakeInputFile('me.bin', ME_DATA)
TestFunctional._MakeInputFile('vga.bin', VGA_DATA)
self._ResetDtbs()
TestFunctional._MakeInputFile('u-boot-x86-16bit.bin', X86_START16_DATA)
TestFunctional._MakeInputFile('u-boot-br.bin', PPC_MPC85XX_BR_DATA)
TestFunctional._MakeInputFile('spl/u-boot-x86-16bit-spl.bin',
X86_START16_SPL_DATA)
TestFunctional._MakeInputFile('tpl/u-boot-x86-16bit-tpl.bin',
X86_START16_TPL_DATA)
TestFunctional._MakeInputFile('u-boot-nodtb.bin', U_BOOT_NODTB_DATA)
TestFunctional._MakeInputFile('spl/u-boot-spl-nodtb.bin',
U_BOOT_SPL_NODTB_DATA)
TestFunctional._MakeInputFile('tpl/u-boot-tpl-nodtb.bin',
U_BOOT_TPL_NODTB_DATA)
TestFunctional._MakeInputFile('fsp.bin', FSP_DATA)
TestFunctional._MakeInputFile('cmc.bin', CMC_DATA)
TestFunctional._MakeInputFile('vbt.bin', VBT_DATA)
TestFunctional._MakeInputFile('mrc.bin', MRC_DATA)
TestFunctional._MakeInputFile('ecrw.bin', CROS_EC_RW_DATA)
TestFunctional._MakeInputDir('devkeys')
TestFunctional._MakeInputFile('bmpblk.bin', BMPBLK_DATA)
TestFunctional._MakeInputFile('refcode.bin', REFCODE_DATA)
# ELF file with a '_dt_ucode_base_size' symbol
with open(self.TestFile('u_boot_ucode_ptr'), 'rb') as fd:
TestFunctional._MakeInputFile('u-boot', fd.read())
# Intel flash descriptor file
with open(self.TestFile('descriptor.bin'), 'rb') as fd:
TestFunctional._MakeInputFile('descriptor.bin', fd.read())
shutil.copytree(self.TestFile('files'),
os.path.join(self._indir, 'files'))
TestFunctional._MakeInputFile('compress', COMPRESS_DATA)
# Travis-CI may have an old lz4
self.have_lz4 = True
try:
tools.Run('lz4', '--no-frame-crc', '-c',
os.path.join(self._indir, 'u-boot.bin'))
except:
self.have_lz4 = False
@classmethod
def tearDownClass(self):
"""Remove the temporary input directory and its contents"""
if self.preserve_indir:
print('Preserving input dir: %s' % self._indir)
else:
if self._indir:
shutil.rmtree(self._indir)
self._indir = None
@classmethod
def setup_test_args(cls, preserve_indir=False, preserve_outdirs=False,
toolpath=None, verbosity=None):
"""Accept arguments controlling test execution
Args:
preserve_indir: Preserve the shared input directory used by all
tests in this class.
preserve_outdir: Preserve the output directories used by tests. Each
test has its own, so this is normally only useful when running a
single test.
toolpath: ist of paths to use for tools
"""
cls.preserve_indir = preserve_indir
cls.preserve_outdirs = preserve_outdirs
cls.toolpath = toolpath
cls.verbosity = verbosity
def _CheckLz4(self):
if not self.have_lz4:
self.skipTest('lz4 --no-frame-crc not available')
def _CleanupOutputDir(self):
"""Remove the temporary output directory"""
if self.preserve_outdirs:
print('Preserving output dir: %s' % tools.outdir)
else:
tools._FinaliseForTest()
def setUp(self):
# Enable this to turn on debugging output
# tout.Init(tout.DEBUG)
command.test_result = None
def tearDown(self):
"""Remove the temporary output directory"""
self._CleanupOutputDir()
def _SetupImageInTmpdir(self):
"""Set up the output image in a new temporary directory
This is used when an image has been generated in the output directory,
but we want to run binman again. This will create a new output
directory and fail to delete the original one.
This creates a new temporary directory, copies the image to it (with a
new name) and removes the old output directory.
Returns:
Tuple:
Temporary directory to use
New image filename
"""
image_fname = tools.GetOutputFilename('image.bin')
tmpdir = tempfile.mkdtemp(prefix='binman.')
updated_fname = os.path.join(tmpdir, 'image-updated.bin')
tools.WriteFile(updated_fname, tools.ReadFile(image_fname))
self._CleanupOutputDir()
return tmpdir, updated_fname
@classmethod
def _ResetDtbs(self):
TestFunctional._MakeInputFile('u-boot.dtb', U_BOOT_DTB_DATA)
TestFunctional._MakeInputFile('spl/u-boot-spl.dtb', U_BOOT_SPL_DTB_DATA)
TestFunctional._MakeInputFile('tpl/u-boot-tpl.dtb', U_BOOT_TPL_DTB_DATA)
def _RunBinman(self, *args, **kwargs):
"""Run binman using the command line
Args:
Arguments to pass, as a list of strings
kwargs: Arguments to pass to Command.RunPipe()
"""
result = command.RunPipe([[self._binman_pathname] + list(args)],
capture=True, capture_stderr=True, raise_on_error=False)
if result.return_code and kwargs.get('raise_on_error', True):
raise Exception("Error running '%s': %s" % (' '.join(args),
result.stdout + result.stderr))
return result
def _DoBinman(self, *argv):
"""Run binman using directly (in the same process)
Args:
Arguments to pass, as a list of strings
Returns:
Return value (0 for success)
"""
argv = list(argv)
args = cmdline.ParseArgs(argv)
args.pager = 'binman-invalid-pager'
args.build_dir = self._indir
# For testing, you can force an increase in verbosity here
# args.verbosity = tout.DEBUG
return control.Binman(args)
def _DoTestFile(self, fname, debug=False, map=False, update_dtb=False,
entry_args=None, images=None, use_real_dtb=False,
verbosity=None):
"""Run binman with a given test file
Args:
fname: Device-tree source filename to use (e.g. 005_simple.dts)
debug: True to enable debugging output
map: True to output map files for the images
update_dtb: Update the offset and size of each entry in the device
tree before packing it into the image
entry_args: Dict of entry args to supply to binman
key: arg name
value: value of that arg
images: List of image names to build
"""
args = []
if debug:
args.append('-D')
if verbosity is not None:
args.append('-v%d' % verbosity)
elif self.verbosity:
args.append('-v%d' % self.verbosity)
if self.toolpath:
for path in self.toolpath:
args += ['--toolpath', path]
args += ['build', '-p', '-I', self._indir, '-d', self.TestFile(fname)]
if map:
args.append('-m')
if update_dtb:
args.append('-u')
if not use_real_dtb:
args.append('--fake-dtb')
if entry_args:
for arg, value in entry_args.items():
args.append('-a%s=%s' % (arg, value))
if images:
for image in images:
args += ['-i', image]
return self._DoBinman(*args)
def _SetupDtb(self, fname, outfile='u-boot.dtb'):
"""Set up a new test device-tree file
The given file is compiled and set up as the device tree to be used
for ths test.
Args:
fname: Filename of .dts file to read
outfile: Output filename for compiled device-tree binary
Returns:
Contents of device-tree binary
"""
tmpdir = tempfile.mkdtemp(prefix='binmant.')
dtb = fdt_util.EnsureCompiled(self.TestFile(fname), tmpdir)
with open(dtb, 'rb') as fd:
data = fd.read()
TestFunctional._MakeInputFile(outfile, data)
shutil.rmtree(tmpdir)
return data
def _GetDtbContentsForSplTpl(self, dtb_data, name):
"""Create a version of the main DTB for SPL or SPL
For testing we don't actually have different versions of the DTB. With
U-Boot we normally run fdtgrep to remove unwanted nodes, but for tests
we don't normally have any unwanted nodes.
We still want the DTBs for SPL and TPL to be different though, since
otherwise it is confusing to know which one we are looking at. So add
an 'spl' or 'tpl' property to the top-level node.
"""
dtb = fdt.Fdt.FromData(dtb_data)
dtb.Scan()
dtb.GetNode('/binman').AddZeroProp(name)
dtb.Sync(auto_resize=True)
dtb.Pack()
return dtb.GetContents()
def _DoReadFileDtb(self, fname, use_real_dtb=False, map=False,
update_dtb=False, entry_args=None, reset_dtbs=True):
"""Run binman and return the resulting image
This runs binman with a given test file and then reads the resulting
output file. It is a shortcut function since most tests need to do
these steps.
Raises an assertion failure if binman returns a non-zero exit code.
Args:
fname: Device-tree source filename to use (e.g. 005_simple.dts)
use_real_dtb: True to use the test file as the contents of
the u-boot-dtb entry. Normally this is not needed and the
test contents (the U_BOOT_DTB_DATA string) can be used.
But in some test we need the real contents.
map: True to output map files for the images
update_dtb: Update the offset and size of each entry in the device
tree before packing it into the image
Returns:
Tuple:
Resulting image contents
Device tree contents
Map data showing contents of image (or None if none)
Output device tree binary filename ('u-boot.dtb' path)
"""
dtb_data = None
# Use the compiled test file as the u-boot-dtb input
if use_real_dtb:
dtb_data = self._SetupDtb(fname)
# For testing purposes, make a copy of the DT for SPL and TPL. Add
# a node indicating which it is, so aid verification.
for name in ['spl', 'tpl']:
dtb_fname = '%s/u-boot-%s.dtb' % (name, name)
outfile = os.path.join(self._indir, dtb_fname)
TestFunctional._MakeInputFile(dtb_fname,
self._GetDtbContentsForSplTpl(dtb_data, name))
try:
retcode = self._DoTestFile(fname, map=map, update_dtb=update_dtb,
entry_args=entry_args, use_real_dtb=use_real_dtb)
self.assertEqual(0, retcode)
out_dtb_fname = tools.GetOutputFilename('u-boot.dtb.out')
# Find the (only) image, read it and return its contents
image = control.images['image']
image_fname = tools.GetOutputFilename('image.bin')
self.assertTrue(os.path.exists(image_fname))
if map:
map_fname = tools.GetOutputFilename('image.map')
with open(map_fname) as fd:
map_data = fd.read()
else:
map_data = None
with open(image_fname, 'rb') as fd:
return fd.read(), dtb_data, map_data, out_dtb_fname
finally:
# Put the test file back
if reset_dtbs and use_real_dtb:
self._ResetDtbs()
def _DoReadFileRealDtb(self, fname):
"""Run binman with a real .dtb file and return the resulting data
Args:
fname: DT source filename to use (e.g. 082_fdt_update_all.dts)
Returns:
Resulting image contents
"""
return self._DoReadFileDtb(fname, use_real_dtb=True, update_dtb=True)[0]
def _DoReadFile(self, fname, use_real_dtb=False):
"""Helper function which discards the device-tree binary
Args:
fname: Device-tree source filename to use (e.g. 005_simple.dts)
use_real_dtb: True to use the test file as the contents of
the u-boot-dtb entry. Normally this is not needed and the
test contents (the U_BOOT_DTB_DATA string) can be used.
But in some test we need the real contents.
Returns:
Resulting image contents
"""
return self._DoReadFileDtb(fname, use_real_dtb)[0]
@classmethod
def _MakeInputFile(self, 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(self._indir, fname)
dirname = os.path.dirname(pathname)
if dirname and not os.path.exists(dirname):
os.makedirs(dirname)
with open(pathname, 'wb') as fd:
fd.write(contents)
return pathname
@classmethod
def _MakeInputDir(self, dirname):
"""Create a new test input directory, creating directories as needed
Args:
dirname: Directory name to create
Returns:
Full pathname of directory created
"""
pathname = os.path.join(self._indir, dirname)
if not os.path.exists(pathname):
os.makedirs(pathname)
return pathname
@classmethod
def _SetupSplElf(self, src_fname='bss_data'):
"""Set up an ELF file with a '_dt_ucode_base_size' symbol
Args:
Filename of ELF file to use as SPL
"""
with open(self.TestFile(src_fname), 'rb') as fd:
TestFunctional._MakeInputFile('spl/u-boot-spl', fd.read())
@classmethod
def TestFile(self, fname):
return os.path.join(self._binman_dir, 'test', fname)
def AssertInList(self, grep_list, target):
"""Assert that at least one of a list of things is in a target
Args:
grep_list: List of strings to check
target: Target string
"""
for grep in grep_list:
if grep in target:
return
self.fail("Error: '%s' not found in '%s'" % (grep_list, target))
def CheckNoGaps(self, entries):
"""Check that all entries fit together without gaps
Args:
entries: List of entries to check
"""
offset = 0
for entry in entries.values():
self.assertEqual(offset, entry.offset)
offset += entry.size
def GetFdtLen(self, dtb):
"""Get the totalsize field from a device-tree binary
Args:
dtb: Device-tree binary contents
Returns:
Total size of device-tree binary, from the header
"""
return struct.unpack('>L', dtb[4:8])[0]
def _GetPropTree(self, dtb, prop_names, prefix='/binman/'):
def AddNode(node, path):
if node.name != '/':
path += '/' + node.name
for prop in node.props.values():
if prop.name in prop_names:
prop_path = path + ':' + prop.name
tree[prop_path[len(prefix):]] = fdt_util.fdt32_to_cpu(
prop.value)
for subnode in node.subnodes:
AddNode(subnode, path)
tree = {}
AddNode(dtb.GetRoot(), '')
return tree
def testRun(self):
"""Test a basic run with valid args"""
result = self._RunBinman('-h')
def testFullHelp(self):
"""Test that the full help is displayed with -H"""
result = self._RunBinman('-H')
help_file = os.path.join(self._binman_dir, 'README')
# Remove possible extraneous strings
extra = '::::::::::::::\n' + help_file + '\n::::::::::::::\n'
gothelp = result.stdout.replace(extra, '')
self.assertEqual(len(gothelp), os.path.getsize(help_file))
self.assertEqual(0, len(result.stderr))
self.assertEqual(0, result.return_code)
def testFullHelpInternal(self):
"""Test that the full help is displayed with -H"""
try:
command.test_result = command.CommandResult()
result = self._DoBinman('-H')
help_file = os.path.join(self._binman_dir, 'README')
finally:
command.test_result = None
def testHelp(self):
"""Test that the basic help is displayed with -h"""
result = self._RunBinman('-h')
self.assertTrue(len(result.stdout) > 200)
self.assertEqual(0, len(result.stderr))
self.assertEqual(0, result.return_code)
def testBoard(self):
"""Test that we can run it with a specific board"""
self._SetupDtb('005_simple.dts', 'sandbox/u-boot.dtb')
TestFunctional._MakeInputFile('sandbox/u-boot.bin', U_BOOT_DATA)
result = self._DoBinman('build', '-b', 'sandbox')
self.assertEqual(0, result)
def testNeedBoard(self):
"""Test that we get an error when no board ius supplied"""
with self.assertRaises(ValueError) as e:
result = self._DoBinman('build')
self.assertIn("Must provide a board to process (use -b <board>)",
str(e.exception))
def testMissingDt(self):
"""Test that an invalid device-tree file generates an error"""
with self.assertRaises(Exception) as e:
self._RunBinman('build', '-d', 'missing_file')
# We get one error from libfdt, and a different one from fdtget.
self.AssertInList(["Couldn't open blob from 'missing_file'",
'No such file or directory'], str(e.exception))
def testBrokenDt(self):
"""Test that an invalid device-tree source file generates an error
Since this is a source file it should be compiled and the error
will come from the device-tree compiler (dtc).
"""
with self.assertRaises(Exception) as e:
self._RunBinman('build', '-d', self.TestFile('001_invalid.dts'))
self.assertIn("FATAL ERROR: Unable to parse input tree",
str(e.exception))
def testMissingNode(self):
"""Test that a device tree without a 'binman' node generates an error"""
with self.assertRaises(Exception) as e:
self._DoBinman('build', '-d', self.TestFile('002_missing_node.dts'))
self.assertIn("does not have a 'binman' node", str(e.exception))
def testEmpty(self):
"""Test that an empty binman node works OK (i.e. does nothing)"""
result = self._RunBinman('build', '-d', self.TestFile('003_empty.dts'))
self.assertEqual(0, len(result.stderr))
self.assertEqual(0, result.return_code)
def testInvalidEntry(self):
"""Test that an invalid entry is flagged"""
with self.assertRaises(Exception) as e:
result = self._RunBinman('build', '-d',
self.TestFile('004_invalid_entry.dts'))
self.assertIn("Unknown entry type 'not-a-valid-type' in node "
"'/binman/not-a-valid-type'", str(e.exception))
def testSimple(self):
"""Test a simple binman with a single file"""
data = self._DoReadFile('005_simple.dts')
self.assertEqual(U_BOOT_DATA, data)
def testSimpleDebug(self):
"""Test a simple binman run with debugging enabled"""
self._DoTestFile('005_simple.dts', debug=True)
def testDual(self):
"""Test that we can handle creating two images
This also tests image padding.
"""
retcode = self._DoTestFile('006_dual_image.dts')
self.assertEqual(0, retcode)
image = control.images['image1']
self.assertEqual(len(U_BOOT_DATA), image.size)
fname = tools.GetOutputFilename('image1.bin')
self.assertTrue(os.path.exists(fname))
with open(fname, 'rb') as fd:
data = fd.read()
self.assertEqual(U_BOOT_DATA, data)
image = control.images['image2']
self.assertEqual(3 + len(U_BOOT_DATA) + 5, image.size)
fname = tools.GetOutputFilename('image2.bin')
self.assertTrue(os.path.exists(fname))
with open(fname, 'rb') as fd:
data = fd.read()
self.assertEqual(U_BOOT_DATA, data[3:7])
self.assertEqual(tools.GetBytes(0, 3), data[:3])
self.assertEqual(tools.GetBytes(0, 5), data[7:])
def testBadAlign(self):
"""Test that an invalid alignment value is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('007_bad_align.dts')
self.assertIn("Node '/binman/u-boot': Alignment 23 must be a power "
"of two", str(e.exception))
def testPackSimple(self):
"""Test that packing works as expected"""
retcode = self._DoTestFile('008_pack.dts')
self.assertEqual(0, retcode)
self.assertIn('image', control.images)
image = control.images['image']
entries = image.GetEntries()
self.assertEqual(5, len(entries))
# First u-boot
self.assertIn('u-boot', entries)
entry = entries['u-boot']
self.assertEqual(0, entry.offset)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Second u-boot, aligned to 16-byte boundary
self.assertIn('u-boot-align', entries)
entry = entries['u-boot-align']
self.assertEqual(16, entry.offset)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Third u-boot, size 23 bytes
self.assertIn('u-boot-size', entries)
entry = entries['u-boot-size']
self.assertEqual(20, entry.offset)
self.assertEqual(len(U_BOOT_DATA), entry.contents_size)
self.assertEqual(23, entry.size)
# Fourth u-boot, placed immediate after the above
self.assertIn('u-boot-next', entries)
entry = entries['u-boot-next']
self.assertEqual(43, entry.offset)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Fifth u-boot, placed at a fixed offset
self.assertIn('u-boot-fixed', entries)
entry = entries['u-boot-fixed']
self.assertEqual(61, entry.offset)
self.assertEqual(len(U_BOOT_DATA), entry.size)
self.assertEqual(65, image.size)
def testPackExtra(self):
"""Test that extra packing feature works as expected"""
retcode = self._DoTestFile('009_pack_extra.dts')
self.assertEqual(0, retcode)
self.assertIn('image', control.images)
image = control.images['image']
entries = image.GetEntries()
self.assertEqual(5, len(entries))
# First u-boot with padding before and after
self.assertIn('u-boot', entries)
entry = entries['u-boot']
self.assertEqual(0, entry.offset)
self.assertEqual(3, entry.pad_before)
self.assertEqual(3 + 5 + len(U_BOOT_DATA), entry.size)
# Second u-boot has an aligned size, but it has no effect
self.assertIn('u-boot-align-size-nop', entries)
entry = entries['u-boot-align-size-nop']
self.assertEqual(12, entry.offset)
self.assertEqual(4, entry.size)
# Third u-boot has an aligned size too
self.assertIn('u-boot-align-size', entries)
entry = entries['u-boot-align-size']
self.assertEqual(16, entry.offset)
self.assertEqual(32, entry.size)
# Fourth u-boot has an aligned end
self.assertIn('u-boot-align-end', entries)
entry = entries['u-boot-align-end']
self.assertEqual(48, entry.offset)
self.assertEqual(16, entry.size)
# Fifth u-boot immediately afterwards
self.assertIn('u-boot-align-both', entries)
entry = entries['u-boot-align-both']
self.assertEqual(64, entry.offset)
self.assertEqual(64, entry.size)
self.CheckNoGaps(entries)
self.assertEqual(128, image.size)
def testPackAlignPowerOf2(self):
"""Test that invalid entry alignment is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('010_pack_align_power2.dts')
self.assertIn("Node '/binman/u-boot': Alignment 5 must be a power "
"of two", str(e.exception))
def testPackAlignSizePowerOf2(self):
"""Test that invalid entry size alignment is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('011_pack_align_size_power2.dts')
self.assertIn("Node '/binman/u-boot': Alignment size 55 must be a "
"power of two", str(e.exception))
def testPackInvalidAlign(self):
"""Test detection of an offset that does not match its alignment"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('012_pack_inv_align.dts')
self.assertIn("Node '/binman/u-boot': Offset 0x5 (5) does not match "
"align 0x4 (4)", str(e.exception))
def testPackInvalidSizeAlign(self):
"""Test that invalid entry size alignment is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('013_pack_inv_size_align.dts')
self.assertIn("Node '/binman/u-boot': Size 0x5 (5) does not match "
"align-size 0x4 (4)", str(e.exception))
def testPackOverlap(self):
"""Test that overlapping regions are detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('014_pack_overlap.dts')
self.assertIn("Node '/binman/u-boot-align': Offset 0x3 (3) overlaps "
"with previous entry '/binman/u-boot' ending at 0x4 (4)",
str(e.exception))
def testPackEntryOverflow(self):
"""Test that entries that overflow their size are detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('015_pack_overflow.dts')
self.assertIn("Node '/binman/u-boot': Entry contents size is 0x4 (4) "
"but entry size is 0x3 (3)", str(e.exception))
def testPackImageOverflow(self):
"""Test that entries which overflow the image size are detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('016_pack_image_overflow.dts')
self.assertIn("Section '/binman': contents size 0x4 (4) exceeds section "
"size 0x3 (3)", str(e.exception))
def testPackImageSize(self):
"""Test that the image size can be set"""
retcode = self._DoTestFile('017_pack_image_size.dts')
self.assertEqual(0, retcode)
self.assertIn('image', control.images)
image = control.images['image']
self.assertEqual(7, image.size)
def testPackImageSizeAlign(self):
"""Test that image size alignemnt works as expected"""
retcode = self._DoTestFile('018_pack_image_align.dts')
self.assertEqual(0, retcode)
self.assertIn('image', control.images)
image = control.images['image']
self.assertEqual(16, image.size)
def testPackInvalidImageAlign(self):
"""Test that invalid image alignment is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('019_pack_inv_image_align.dts')
self.assertIn("Section '/binman': Size 0x7 (7) does not match "
"align-size 0x8 (8)", str(e.exception))
def testPackAlignPowerOf2(self):
"""Test that invalid image alignment is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('020_pack_inv_image_align_power2.dts')
self.assertIn("Image '/binman': Alignment size 131 must be a power of "
"two", str(e.exception))
def testImagePadByte(self):
"""Test that the image pad byte can be specified"""
self._SetupSplElf()
data = self._DoReadFile('021_image_pad.dts')
self.assertEqual(U_BOOT_SPL_DATA + tools.GetBytes(0xff, 1) +
U_BOOT_DATA, data)
def testImageName(self):
"""Test that image files can be named"""
retcode = self._DoTestFile('022_image_name.dts')
self.assertEqual(0, retcode)
image = control.images['image1']
fname = tools.GetOutputFilename('test-name')
self.assertTrue(os.path.exists(fname))
image = control.images['image2']
fname = tools.GetOutputFilename('test-name.xx')
self.assertTrue(os.path.exists(fname))
def testBlobFilename(self):
"""Test that generic blobs can be provided by filename"""
data = self._DoReadFile('023_blob.dts')
self.assertEqual(BLOB_DATA, data)
def testPackSorted(self):
"""Test that entries can be sorted"""
self._SetupSplElf()
data = self._DoReadFile('024_sorted.dts')
self.assertEqual(tools.GetBytes(0, 1) + U_BOOT_SPL_DATA +
tools.GetBytes(0, 2) + U_BOOT_DATA, data)
def testPackZeroOffset(self):
"""Test that an entry at offset 0 is not given a new offset"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('025_pack_zero_size.dts')
self.assertIn("Node '/binman/u-boot-spl': Offset 0x0 (0) overlaps "
"with previous entry '/binman/u-boot' ending at 0x4 (4)",
str(e.exception))
def testPackUbootDtb(self):
"""Test that a device tree can be added to U-Boot"""
data = self._DoReadFile('026_pack_u_boot_dtb.dts')
self.assertEqual(U_BOOT_NODTB_DATA + U_BOOT_DTB_DATA, data)
def testPackX86RomNoSize(self):
"""Test that the end-at-4gb property requires a size property"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('027_pack_4gb_no_size.dts')
self.assertIn("Image '/binman': Section size must be provided when "
"using end-at-4gb", str(e.exception))
def test4gbAndSkipAtStartTogether(self):
"""Test that the end-at-4gb and skip-at-size property can't be used
together"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('80_4gb_and_skip_at_start_together.dts')
self.assertIn("Image '/binman': Provide either 'end-at-4gb' or "
"'skip-at-start'", str(e.exception))
def testPackX86RomOutside(self):
"""Test that the end-at-4gb property checks for offset boundaries"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('028_pack_4gb_outside.dts')
self.assertIn("Node '/binman/u-boot': Offset 0x0 (0) is outside "
"the section starting at 0xffffffe0 (4294967264)",
str(e.exception))
def testPackX86Rom(self):
"""Test that a basic x86 ROM can be created"""
self._SetupSplElf()
data = self._DoReadFile('029_x86-rom.dts')
self.assertEqual(U_BOOT_DATA + tools.GetBytes(0, 7) + U_BOOT_SPL_DATA +
tools.GetBytes(0, 2), data)
def testPackX86RomMeNoDesc(self):
"""Test that an invalid Intel descriptor entry is detected"""
TestFunctional._MakeInputFile('descriptor.bin', b'')
with self.assertRaises(ValueError) as e:
self._DoTestFile('031_x86-rom-me.dts')
self.assertIn("Node '/binman/intel-descriptor': Cannot find Intel Flash Descriptor (FD) signature",
str(e.exception))
def testPackX86RomBadDesc(self):
"""Test that the Intel requires a descriptor entry"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('030_x86-rom-me-no-desc.dts')
self.assertIn("Node '/binman/intel-me': No offset set with "
"offset-unset: should another entry provide this correct "
"offset?", str(e.exception))
def testPackX86RomMe(self):
"""Test that an x86 ROM with an ME region can be created"""
data = self._DoReadFile('031_x86-rom-me.dts')
expected_desc = tools.ReadFile(self.TestFile('descriptor.bin'))
if data[:0x1000] != expected_desc:
self.fail('Expected descriptor binary at start of image')
self.assertEqual(ME_DATA, data[0x1000:0x1000 + len(ME_DATA)])
def testPackVga(self):
"""Test that an image with a VGA binary can be created"""
data = self._DoReadFile('032_intel-vga.dts')
self.assertEqual(VGA_DATA, data[:len(VGA_DATA)])
def testPackStart16(self):
"""Test that an image with an x86 start16 region can be created"""
data = self._DoReadFile('033_x86-start16.dts')
self.assertEqual(X86_START16_DATA, data[:len(X86_START16_DATA)])
def testPackPowerpcMpc85xxBootpgResetvec(self):
"""Test that an image with powerpc-mpc85xx-bootpg-resetvec can be
created"""
data = self._DoReadFile('81_powerpc_mpc85xx_bootpg_resetvec.dts')
self.assertEqual(PPC_MPC85XX_BR_DATA, data[:len(PPC_MPC85XX_BR_DATA)])
def _RunMicrocodeTest(self, dts_fname, nodtb_data, ucode_second=False):
"""Handle running a test for insertion of microcode
Args:
dts_fname: Name of test .dts file
nodtb_data: Data that we expect in the first section
ucode_second: True if the microsecond entry is second instead of
third
Returns:
Tuple:
Contents of first region (U-Boot or SPL)
Offset and size components of microcode pointer, as inserted
in the above (two 4-byte words)
"""
data = self._DoReadFile(dts_fname, True)
# Now check the device tree has no microcode
if ucode_second:
ucode_content = data[len(nodtb_data):]
ucode_pos = len(nodtb_data)
dtb_with_ucode = ucode_content[16:]
fdt_len = self.GetFdtLen(dtb_with_ucode)
else:
dtb_with_ucode = data[len(nodtb_data):]
fdt_len = self.GetFdtLen(dtb_with_ucode)
ucode_content = dtb_with_ucode[fdt_len:]
ucode_pos = len(nodtb_data) + fdt_len
fname = tools.GetOutputFilename('test.dtb')
with open(fname, 'wb') as fd:
fd.write(dtb_with_ucode)
dtb = fdt.FdtScan(fname)
ucode = dtb.GetNode('/microcode')
self.assertTrue(ucode)
for node in ucode.subnodes:
self.assertFalse(node.props.get('data'))
# Check that the microcode appears immediately after the Fdt
# This matches the concatenation of the data properties in
# the /microcode/update@xxx nodes in 34_x86_ucode.dts.
ucode_data = struct.pack('>4L', 0x12345678, 0x12345679, 0xabcd0000,
0x78235609)
self.assertEqual(ucode_data, ucode_content[:len(ucode_data)])
# Check that the microcode pointer was inserted. It should match the
# expected offset and size
pos_and_size = struct.pack('<2L', 0xfffffe00 + ucode_pos,
len(ucode_data))
u_boot = data[:len(nodtb_data)]
return u_boot, pos_and_size
def testPackUbootMicrocode(self):
"""Test that x86 microcode can be handled correctly
We expect to see the following in the image, in order:
u-boot-nodtb.bin with a microcode pointer inserted at the correct
place
u-boot.dtb with the microcode removed
the microcode
"""
first, pos_and_size = self._RunMicrocodeTest('034_x86_ucode.dts',
U_BOOT_NODTB_DATA)
self.assertEqual(b'nodtb with microcode' + pos_and_size +
b' somewhere in here', first)
def _RunPackUbootSingleMicrocode(self):
"""Test that x86 microcode can be handled correctly
We expect to see the following in the image, in order:
u-boot-nodtb.bin with a microcode pointer inserted at the correct
place
u-boot.dtb with the microcode
an empty microcode region
"""
# We need the libfdt library to run this test since only that allows
# finding the offset of a property. This is required by
# Entry_u_boot_dtb_with_ucode.ObtainContents().
data = self._DoReadFile('035_x86_single_ucode.dts', True)
second = data[len(U_BOOT_NODTB_DATA):]
fdt_len = self.GetFdtLen(second)
third = second[fdt_len:]
second = second[:fdt_len]
ucode_data = struct.pack('>2L', 0x12345678, 0x12345679)
self.assertIn(ucode_data, second)
ucode_pos = second.find(ucode_data) + len(U_BOOT_NODTB_DATA)
# Check that the microcode pointer was inserted. It should match the
# expected offset and size
pos_and_size = struct.pack('<2L', 0xfffffe00 + ucode_pos,
len(ucode_data))
first = data[:len(U_BOOT_NODTB_DATA)]
self.assertEqual(b'nodtb with microcode' + pos_and_size +
b' somewhere in here', first)
def testPackUbootSingleMicrocode(self):
"""Test that x86 microcode can be handled correctly with fdt_normal.
"""
self._RunPackUbootSingleMicrocode()
def testUBootImg(self):
"""Test that u-boot.img can be put in a file"""
data = self._DoReadFile('036_u_boot_img.dts')
self.assertEqual(U_BOOT_IMG_DATA, data)
def testNoMicrocode(self):
"""Test that a missing microcode region is detected"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('037_x86_no_ucode.dts', True)
self.assertIn("Node '/binman/u-boot-dtb-with-ucode': No /microcode "
"node found in ", str(e.exception))
def testMicrocodeWithoutNode(self):
"""Test that a missing u-boot-dtb-with-ucode node is detected"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('038_x86_ucode_missing_node.dts', True)
self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Cannot find "
"microcode region u-boot-dtb-with-ucode", str(e.exception))
def testMicrocodeWithoutNode2(self):
"""Test that a missing u-boot-ucode node is detected"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('039_x86_ucode_missing_node2.dts', True)
self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Cannot find "
"microcode region u-boot-ucode", str(e.exception))
def testMicrocodeWithoutPtrInElf(self):
"""Test that a U-Boot binary without the microcode symbol is detected"""
# ELF file without a '_dt_ucode_base_size' symbol
try:
with open(self.TestFile('u_boot_no_ucode_ptr'), 'rb') as fd:
TestFunctional._MakeInputFile('u-boot', fd.read())
with self.assertRaises(ValueError) as e:
self._RunPackUbootSingleMicrocode()
self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Cannot locate "
"_dt_ucode_base_size symbol in u-boot", str(e.exception))
finally:
# Put the original file back
with open(self.TestFile('u_boot_ucode_ptr'), 'rb') as fd:
TestFunctional._MakeInputFile('u-boot', fd.read())
def testMicrocodeNotInImage(self):
"""Test that microcode must be placed within the image"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('040_x86_ucode_not_in_image.dts', True)
self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Microcode "
"pointer _dt_ucode_base_size at fffffe14 is outside the "
"section ranging from 00000000 to 0000002e", str(e.exception))
def testWithoutMicrocode(self):
"""Test that we can cope with an image without microcode (e.g. qemu)"""
with open(self.TestFile('u_boot_no_ucode_ptr'), 'rb') as fd:
TestFunctional._MakeInputFile('u-boot', fd.read())
data, dtb, _, _ = self._DoReadFileDtb('044_x86_optional_ucode.dts', True)
# Now check the device tree has no microcode
self.assertEqual(U_BOOT_NODTB_DATA, data[:len(U_BOOT_NODTB_DATA)])
second = data[len(U_BOOT_NODTB_DATA):]
fdt_len = self.GetFdtLen(second)
self.assertEqual(dtb, second[:fdt_len])
used_len = len(U_BOOT_NODTB_DATA) + fdt_len
third = data[used_len:]
self.assertEqual(tools.GetBytes(0, 0x200 - used_len), third)
def testUnknownPosSize(self):
"""Test that microcode must be placed within the image"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('041_unknown_pos_size.dts', True)
self.assertIn("Section '/binman': Unable to set offset/size for unknown "
"entry 'invalid-entry'", str(e.exception))
def testPackFsp(self):
"""Test that an image with a FSP binary can be created"""
data = self._DoReadFile('042_intel-fsp.dts')
self.assertEqual(FSP_DATA, data[:len(FSP_DATA)])
def testPackCmc(self):
"""Test that an image with a CMC binary can be created"""
data = self._DoReadFile('043_intel-cmc.dts')
self.assertEqual(CMC_DATA, data[:len(CMC_DATA)])
def testPackVbt(self):
"""Test that an image with a VBT binary can be created"""
data = self._DoReadFile('046_intel-vbt.dts')
self.assertEqual(VBT_DATA, data[:len(VBT_DATA)])
def testSplBssPad(self):
"""Test that we can pad SPL's BSS with zeros"""
# ELF file with a '__bss_size' symbol
self._SetupSplElf()
data = self._DoReadFile('047_spl_bss_pad.dts')
self.assertEqual(U_BOOT_SPL_DATA + tools.GetBytes(0, 10) + U_BOOT_DATA,
data)
def testSplBssPadMissing(self):
"""Test that a missing symbol is detected"""
self._SetupSplElf('u_boot_ucode_ptr')
with self.assertRaises(ValueError) as e:
self._DoReadFile('047_spl_bss_pad.dts')
self.assertIn('Expected __bss_size symbol in spl/u-boot-spl',
str(e.exception))
def testPackStart16Spl(self):
"""Test that an image with an x86 start16 SPL region can be created"""
data = self._DoReadFile('048_x86-start16-spl.dts')
self.assertEqual(X86_START16_SPL_DATA, data[:len(X86_START16_SPL_DATA)])
def _PackUbootSplMicrocode(self, dts, ucode_second=False):
"""Helper function for microcode tests
We expect to see the following in the image, in order:
u-boot-spl-nodtb.bin with a microcode pointer inserted at the
correct place
u-boot.dtb with the microcode removed
the microcode
Args:
dts: Device tree file to use for test
ucode_second: True if the microsecond entry is second instead of
third
"""
self._SetupSplElf('u_boot_ucode_ptr')
first, pos_and_size = self._RunMicrocodeTest(dts, U_BOOT_SPL_NODTB_DATA,
ucode_second=ucode_second)
self.assertEqual(b'splnodtb with microc' + pos_and_size +
b'ter somewhere in here', first)
def testPackUbootSplMicrocode(self):
"""Test that x86 microcode can be handled correctly in SPL"""
self._PackUbootSplMicrocode('049_x86_ucode_spl.dts')
def testPackUbootSplMicrocodeReorder(self):
"""Test that order doesn't matter for microcode entries
This is the same as testPackUbootSplMicrocode but when we process the
u-boot-ucode entry we have not yet seen the u-boot-dtb-with-ucode
entry, so we reply on binman to try later.
"""
self._PackUbootSplMicrocode('058_x86_ucode_spl_needs_retry.dts',
ucode_second=True)
def testPackMrc(self):
"""Test that an image with an MRC binary can be created"""
data = self._DoReadFile('050_intel_mrc.dts')
self.assertEqual(MRC_DATA, data[:len(MRC_DATA)])
def testSplDtb(self):
"""Test that an image with spl/u-boot-spl.dtb can be created"""
data = self._DoReadFile('051_u_boot_spl_dtb.dts')
self.assertEqual(U_BOOT_SPL_DTB_DATA, data[:len(U_BOOT_SPL_DTB_DATA)])
def testSplNoDtb(self):
"""Test that an image with spl/u-boot-spl-nodtb.bin can be created"""
data = self._DoReadFile('052_u_boot_spl_nodtb.dts')
self.assertEqual(U_BOOT_SPL_NODTB_DATA, data[:len(U_BOOT_SPL_NODTB_DATA)])
def testSymbols(self):
"""Test binman can assign symbols embedded in U-Boot"""
elf_fname = self.TestFile('u_boot_binman_syms')
syms = elf.GetSymbols(elf_fname, ['binman', 'image'])
addr = elf.GetSymbolAddress(elf_fname, '__image_copy_start')
self.assertEqual(syms['_binman_u_boot_spl_prop_offset'].address, addr)
self._SetupSplElf('u_boot_binman_syms')
data = self._DoReadFile('053_symbols.dts')
sym_values = struct.pack('<LQL', 0x24 + 0, 0x24 + 24, 0x24 + 20)
expected = (sym_values + U_BOOT_SPL_DATA[16:] +
tools.GetBytes(0xff, 1) + U_BOOT_DATA + sym_values +
U_BOOT_SPL_DATA[16:])
self.assertEqual(expected, data)
def testPackUnitAddress(self):
"""Test that we support multiple binaries with the same name"""
data = self._DoReadFile('054_unit_address.dts')
self.assertEqual(U_BOOT_DATA + U_BOOT_DATA, data)
def testSections(self):
"""Basic test of sections"""
data = self._DoReadFile('055_sections.dts')
expected = (U_BOOT_DATA + tools.GetBytes(ord('!'), 12) +
U_BOOT_DATA + tools.GetBytes(ord('a'), 12) +
U_BOOT_DATA + tools.GetBytes(ord('&'), 4))
self.assertEqual(expected, data)
def testMap(self):
"""Tests outputting a map of the images"""
_, _, map_data, _ = self._DoReadFileDtb('055_sections.dts', map=True)
self.assertEqual('''ImagePos Offset Size Name
00000000 00000000 00000028 main-section
00000000 00000000 00000010 section@0
00000000 00000000 00000004 u-boot
00000010 00000010 00000010 section@1
00000010 00000000 00000004 u-boot
00000020 00000020 00000004 section@2
00000020 00000000 00000004 u-boot
''', map_data)
def testNamePrefix(self):
"""Tests that name prefixes are used"""
_, _, map_data, _ = self._DoReadFileDtb('056_name_prefix.dts', map=True)
self.assertEqual('''ImagePos Offset Size Name
00000000 00000000 00000028 main-section
00000000 00000000 00000010 section@0
00000000 00000000 00000004 ro-u-boot
00000010 00000010 00000010 section@1
00000010 00000000 00000004 rw-u-boot
''', map_data)
def testUnknownContents(self):
"""Test that obtaining the contents works as expected"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('057_unknown_contents.dts', True)
self.assertIn("Image '/binman': Internal error: Could not complete "
"processing of contents: remaining [<_testing.Entry__testing ",
str(e.exception))
def testBadChangeSize(self):
"""Test that trying to change the size of an entry fails"""
try:
state.SetAllowEntryExpansion(False)
with self.assertRaises(ValueError) as e:
self._DoReadFile('059_change_size.dts', True)
self.assertIn("Node '/binman/_testing': Cannot update entry size from 2 to 3",
str(e.exception))
finally:
state.SetAllowEntryExpansion(True)
def testUpdateFdt(self):
"""Test that we can update the device tree with offset/size info"""
_, _, _, out_dtb_fname = self._DoReadFileDtb('060_fdt_update.dts',
update_dtb=True)
dtb = fdt.Fdt(out_dtb_fname)
dtb.Scan()
props = self._GetPropTree(dtb, BASE_DTB_PROPS + REPACK_DTB_PROPS)
self.assertEqual({
'image-pos': 0,
'offset': 0,
'_testing:offset': 32,
'_testing:size': 2,
'_testing:image-pos': 32,
'section@0/u-boot:offset': 0,
'section@0/u-boot:size': len(U_BOOT_DATA),
'section@0/u-boot:image-pos': 0,
'section@0:offset': 0,
'section@0:size': 16,
'section@0:image-pos': 0,
'section@1/u-boot:offset': 0,
'section@1/u-boot:size': len(U_BOOT_DATA),
'section@1/u-boot:image-pos': 16,
'section@1:offset': 16,
'section@1:size': 16,
'section@1:image-pos': 16,
'size': 40
}, props)
def testUpdateFdtBad(self):
"""Test that we detect when ProcessFdt never completes"""
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('061_fdt_update_bad.dts', update_dtb=True)
self.assertIn('Could not complete processing of Fdt: remaining '
'[<_testing.Entry__testing', str(e.exception))
def testEntryArgs(self):
"""Test passing arguments to entries from the command line"""
entry_args = {
'test-str-arg': 'test1',
'test-int-arg': '456',
}
self._DoReadFileDtb('062_entry_args.dts', entry_args=entry_args)
self.assertIn('image', control.images)
entry = control.images['image'].GetEntries()['_testing']
self.assertEqual('test0', entry.test_str_fdt)
self.assertEqual('test1', entry.test_str_arg)
self.assertEqual(123, entry.test_int_fdt)
self.assertEqual(456, entry.test_int_arg)
def testEntryArgsMissing(self):
"""Test missing arguments and properties"""
entry_args = {
'test-int-arg': '456',
}
self._DoReadFileDtb('063_entry_args_missing.dts', entry_args=entry_args)
entry = control.images['image'].GetEntries()['_testing']
self.assertEqual('test0', entry.test_str_fdt)
self.assertEqual(None, entry.test_str_arg)
self.assertEqual(None, entry.test_int_fdt)
self.assertEqual(456, entry.test_int_arg)
def testEntryArgsRequired(self):
"""Test missing arguments and properties"""
entry_args = {
'test-int-arg': '456',
}
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('064_entry_args_required.dts')
self.assertIn("Node '/binman/_testing': Missing required "
'properties/entry args: test-str-arg, test-int-fdt, test-int-arg',
str(e.exception))
def testEntryArgsInvalidFormat(self):
"""Test that an invalid entry-argument format is detected"""
args = ['build', '-d', self.TestFile('064_entry_args_required.dts'),
'-ano-value']
with self.assertRaises(ValueError) as e:
self._DoBinman(*args)
self.assertIn("Invalid entry arguemnt 'no-value'", str(e.exception))
def testEntryArgsInvalidInteger(self):
"""Test that an invalid entry-argument integer is detected"""
entry_args = {
'test-int-arg': 'abc',
}
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('062_entry_args.dts', entry_args=entry_args)
self.assertIn("Node '/binman/_testing': Cannot convert entry arg "
"'test-int-arg' (value 'abc') to integer",
str(e.exception))
def testEntryArgsInvalidDatatype(self):
"""Test that an invalid entry-argument datatype is detected
This test could be written in entry_test.py except that it needs
access to control.entry_args, which seems more than that module should
be able to see.
"""
entry_args = {
'test-bad-datatype-arg': '12',
}
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('065_entry_args_unknown_datatype.dts',
entry_args=entry_args)
self.assertIn('GetArg() internal error: Unknown data type ',
str(e.exception))
def testText(self):
"""Test for a text entry type"""
entry_args = {
'test-id': TEXT_DATA,
'test-id2': TEXT_DATA2,
'test-id3': TEXT_DATA3,
}
data, _, _, _ = self._DoReadFileDtb('066_text.dts',
entry_args=entry_args)
expected = (tools.ToBytes(TEXT_DATA) +
tools.GetBytes(0, 8 - len(TEXT_DATA)) +
tools.ToBytes(TEXT_DATA2) + tools.ToBytes(TEXT_DATA3) +
b'some text' + b'more text')
self.assertEqual(expected, data)
def testEntryDocs(self):
"""Test for creation of entry documentation"""
with test_util.capture_sys_output() as (stdout, stderr):
control.WriteEntryDocs(binman.GetEntryModules())
self.assertTrue(len(stdout.getvalue()) > 0)
def testEntryDocsMissing(self):
"""Test handling of missing entry documentation"""
with self.assertRaises(ValueError) as e:
with test_util.capture_sys_output() as (stdout, stderr):
control.WriteEntryDocs(binman.GetEntryModules(), 'u_boot')
self.assertIn('Documentation is missing for modules: u_boot',
str(e.exception))
def testFmap(self):
"""Basic test of generation of a flashrom fmap"""
data = self._DoReadFile('067_fmap.dts')
fhdr, fentries = fmap_util.DecodeFmap(data[32:])
expected = (U_BOOT_DATA + tools.GetBytes(ord('!'), 12) +
U_BOOT_DATA + tools.GetBytes(ord('a'), 12))
self.assertEqual(expected, data[:32])
self.assertEqual(b'__FMAP__', fhdr.signature)
self.assertEqual(1, fhdr.ver_major)
self.assertEqual(0, fhdr.ver_minor)
self.assertEqual(0, fhdr.base)
self.assertEqual(16 + 16 +
fmap_util.FMAP_HEADER_LEN +
fmap_util.FMAP_AREA_LEN * 3, fhdr.image_size)
self.assertEqual(b'FMAP', fhdr.name)
self.assertEqual(3, fhdr.nareas)
for fentry in fentries:
self.assertEqual(0, fentry.flags)
self.assertEqual(0, fentries[0].offset)
self.assertEqual(4, fentries[0].size)
self.assertEqual(b'RO_U_BOOT', fentries[0].name)
self.assertEqual(16, fentries[1].offset)
self.assertEqual(4, fentries[1].size)
self.assertEqual(b'RW_U_BOOT', fentries[1].name)
self.assertEqual(32, fentries[2].offset)
self.assertEqual(fmap_util.FMAP_HEADER_LEN +
fmap_util.FMAP_AREA_LEN * 3, fentries[2].size)
self.assertEqual(b'FMAP', fentries[2].name)
def testBlobNamedByArg(self):
"""Test we can add a blob with the filename coming from an entry arg"""
entry_args = {
'cros-ec-rw-path': 'ecrw.bin',
}
data, _, _, _ = self._DoReadFileDtb('068_blob_named_by_arg.dts',
entry_args=entry_args)
def testFill(self):
"""Test for an fill entry type"""
data = self._DoReadFile('069_fill.dts')
expected = tools.GetBytes(0xff, 8) + tools.GetBytes(0, 8)
self.assertEqual(expected, data)
def testFillNoSize(self):
"""Test for an fill entry type with no size"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('070_fill_no_size.dts')
self.assertIn("'fill' entry must have a size property",
str(e.exception))
def _HandleGbbCommand(self, pipe_list):
"""Fake calls to the futility utility"""
if pipe_list[0][0] == 'futility':
fname = pipe_list[0][-1]
# Append our GBB data to the file, which will happen every time the
# futility command is called.
with open(fname, 'ab') as fd:
fd.write(GBB_DATA)
return command.CommandResult()
def testGbb(self):
"""Test for the Chromium OS Google Binary Block"""
command.test_result = self._HandleGbbCommand
entry_args = {
'keydir': 'devkeys',
'bmpblk': 'bmpblk.bin',
}
data, _, _, _ = self._DoReadFileDtb('071_gbb.dts', entry_args=entry_args)
# Since futility
expected = (GBB_DATA + GBB_DATA + tools.GetBytes(0, 8) +
tools.GetBytes(0, 0x2180 - 16))
self.assertEqual(expected, data)
def testGbbTooSmall(self):
"""Test for the Chromium OS Google Binary Block being large enough"""
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('072_gbb_too_small.dts')
self.assertIn("Node '/binman/gbb': GBB is too small",
str(e.exception))
def testGbbNoSize(self):
"""Test for the Chromium OS Google Binary Block having a size"""
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('073_gbb_no_size.dts')
self.assertIn("Node '/binman/gbb': GBB must have a fixed size",
str(e.exception))
def _HandleVblockCommand(self, pipe_list):
"""Fake calls to the futility utility"""
if pipe_list[0][0] == 'futility':
fname = pipe_list[0][3]
with open(fname, 'wb') as fd:
fd.write(VBLOCK_DATA)
return command.CommandResult()
def testVblock(self):
"""Test for the Chromium OS Verified Boot Block"""
command.test_result = self._HandleVblockCommand
entry_args = {
'keydir': 'devkeys',
}
data, _, _, _ = self._DoReadFileDtb('074_vblock.dts',
entry_args=entry_args)
expected = U_BOOT_DATA + VBLOCK_DATA + U_BOOT_DTB_DATA
self.assertEqual(expected, data)
def testVblockNoContent(self):
"""Test we detect a vblock which has no content to sign"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('075_vblock_no_content.dts')
self.assertIn("Node '/binman/vblock': Vblock must have a 'content' "
'property', str(e.exception))
def testVblockBadPhandle(self):
"""Test that we detect a vblock with an invalid phandle in contents"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('076_vblock_bad_phandle.dts')
self.assertIn("Node '/binman/vblock': Cannot find node for phandle "
'1000', str(e.exception))
def testVblockBadEntry(self):
"""Test that we detect an entry that points to a non-entry"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('077_vblock_bad_entry.dts')
self.assertIn("Node '/binman/vblock': Cannot find entry for node "
"'other'", str(e.exception))
def testTpl(self):
"""Test that an image with TPL and ots device tree can be created"""
# ELF file with a '__bss_size' symbol
with open(self.TestFile('bss_data'), 'rb') as fd:
TestFunctional._MakeInputFile('tpl/u-boot-tpl', fd.read())
data = self._DoReadFile('078_u_boot_tpl.dts')
self.assertEqual(U_BOOT_TPL_DATA + U_BOOT_TPL_DTB_DATA, data)
def testUsesPos(self):
"""Test that the 'pos' property cannot be used anymore"""
with self.assertRaises(ValueError) as e:
data = self._DoReadFile('079_uses_pos.dts')
self.assertIn("Node '/binman/u-boot': Please use 'offset' instead of "
"'pos'", str(e.exception))
def testFillZero(self):
"""Test for an fill entry type with a size of 0"""
data = self._DoReadFile('080_fill_empty.dts')
self.assertEqual(tools.GetBytes(0, 16), data)
def testTextMissing(self):
"""Test for a text entry type where there is no text"""
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('066_text.dts',)
self.assertIn("Node '/binman/text': No value provided for text label "
"'test-id'", str(e.exception))
def testPackStart16Tpl(self):
"""Test that an image with an x86 start16 TPL region can be created"""
data = self._DoReadFile('081_x86-start16-tpl.dts')
self.assertEqual(X86_START16_TPL_DATA, data[:len(X86_START16_TPL_DATA)])
def testSelectImage(self):
"""Test that we can select which images to build"""
expected = 'Skipping images: image1'
# We should only get the expected message in verbose mode
for verbosity in (0, 2):
with test_util.capture_sys_output() as (stdout, stderr):
retcode = self._DoTestFile('006_dual_image.dts',
verbosity=verbosity,
images=['image2'])
self.assertEqual(0, retcode)
if verbosity:
self.assertIn(expected, stdout.getvalue())
else:
self.assertNotIn(expected, stdout.getvalue())
self.assertFalse(os.path.exists(tools.GetOutputFilename('image1.bin')))
self.assertTrue(os.path.exists(tools.GetOutputFilename('image2.bin')))
self._CleanupOutputDir()
def testUpdateFdtAll(self):
"""Test that all device trees are updated with offset/size info"""
data = self._DoReadFileRealDtb('082_fdt_update_all.dts')
base_expected = {
'section:image-pos': 0,
'u-boot-tpl-dtb:size': 513,
'u-boot-spl-dtb:size': 513,
'u-boot-spl-dtb:offset': 493,
'image-pos': 0,
'section/u-boot-dtb:image-pos': 0,
'u-boot-spl-dtb:image-pos': 493,
'section/u-boot-dtb:size': 493,
'u-boot-tpl-dtb:image-pos': 1006,
'section/u-boot-dtb:offset': 0,
'section:size': 493,
'offset': 0,
'section:offset': 0,
'u-boot-tpl-dtb:offset': 1006,
'size': 1519
}
# We expect three device-tree files in the output, one after the other.
# Read them in sequence. We look for an 'spl' property in the SPL tree,
# and 'tpl' in the TPL tree, to make sure they are distinct from the
# main U-Boot tree. All three should have the same postions and offset.
start = 0
for item in ['', 'spl', 'tpl']:
dtb = fdt.Fdt.FromData(data[start:])
dtb.Scan()
props = self._GetPropTree(dtb, BASE_DTB_PROPS + REPACK_DTB_PROPS +
['spl', 'tpl'])
expected = dict(base_expected)
if item:
expected[item] = 0
self.assertEqual(expected, props)
start += dtb._fdt_obj.totalsize()
def testUpdateFdtOutput(self):
"""Test that output DTB files are updated"""
try:
data, dtb_data, _, _ = self._DoReadFileDtb('082_fdt_update_all.dts',
use_real_dtb=True, update_dtb=True, reset_dtbs=False)
# Unfortunately, compiling a source file always results in a file
# called source.dtb (see fdt_util.EnsureCompiled()). The test
# source file (e.g. test/075_fdt_update_all.dts) thus does not enter
# binman as a file called u-boot.dtb. To fix this, copy the file
# over to the expected place.
#tools.WriteFile(os.path.join(self._indir, 'u-boot.dtb'),
#tools.ReadFile(tools.GetOutputFilename('source.dtb')))
start = 0
for fname in ['u-boot.dtb.out', 'spl/u-boot-spl.dtb.out',
'tpl/u-boot-tpl.dtb.out']:
dtb = fdt.Fdt.FromData(data[start:])
size = dtb._fdt_obj.totalsize()
pathname = tools.GetOutputFilename(os.path.split(fname)[1])
outdata = tools.ReadFile(pathname)
name = os.path.split(fname)[0]
if name:
orig_indata = self._GetDtbContentsForSplTpl(dtb_data, name)
else:
orig_indata = dtb_data
self.assertNotEqual(outdata, orig_indata,
"Expected output file '%s' be updated" % pathname)
self.assertEqual(outdata, data[start:start + size],
"Expected output file '%s' to match output image" %
pathname)
start += size
finally:
self._ResetDtbs()
def _decompress(self, data):
return tools.Decompress(data, 'lz4')
def testCompress(self):
"""Test compression of blobs"""
self._CheckLz4()
data, _, _, out_dtb_fname = self._DoReadFileDtb('083_compress.dts',
use_real_dtb=True, update_dtb=True)
dtb = fdt.Fdt(out_dtb_fname)
dtb.Scan()
props = self._GetPropTree(dtb, ['size', 'uncomp-size'])
orig = self._decompress(data)
self.assertEquals(COMPRESS_DATA, orig)
expected = {
'blob:uncomp-size': len(COMPRESS_DATA),
'blob:size': len(data),
'size': len(data),
}
self.assertEqual(expected, props)
def testFiles(self):
"""Test bringing in multiple files"""
data = self._DoReadFile('084_files.dts')
self.assertEqual(FILES_DATA, data)
def testFilesCompress(self):
"""Test bringing in multiple files and compressing them"""
self._CheckLz4()
data = self._DoReadFile('085_files_compress.dts')
image = control.images['image']
entries = image.GetEntries()
files = entries['files']
entries = files._entries
orig = b''
for i in range(1, 3):
key = '%d.dat' % i
start = entries[key].image_pos
len = entries[key].size
chunk = data[start:start + len]
orig += self._decompress(chunk)
self.assertEqual(FILES_DATA, orig)
def testFilesMissing(self):
"""Test missing files"""
with self.assertRaises(ValueError) as e:
data = self._DoReadFile('086_files_none.dts')
self.assertIn("Node '/binman/files': Pattern \'files/*.none\' matched "
'no files', str(e.exception))
def testFilesNoPattern(self):
"""Test missing files"""
with self.assertRaises(ValueError) as e:
data = self._DoReadFile('087_files_no_pattern.dts')
self.assertIn("Node '/binman/files': Missing 'pattern' property",
str(e.exception))
def testExpandSize(self):
"""Test an expanding entry"""
data, _, map_data, _ = self._DoReadFileDtb('088_expand_size.dts',
map=True)
expect = (tools.GetBytes(ord('a'), 8) + U_BOOT_DATA +
MRC_DATA + tools.GetBytes(ord('b'), 1) + U_BOOT_DATA +
tools.GetBytes(ord('c'), 8) + U_BOOT_DATA +
tools.GetBytes(ord('d'), 8))
self.assertEqual(expect, data)
self.assertEqual('''ImagePos Offset Size Name
00000000 00000000 00000028 main-section
00000000 00000000 00000008 fill
00000008 00000008 00000004 u-boot
0000000c 0000000c 00000004 section
0000000c 00000000 00000003 intel-mrc
00000010 00000010 00000004 u-boot2
00000014 00000014 0000000c section2
00000014 00000000 00000008 fill
0000001c 00000008 00000004 u-boot
00000020 00000020 00000008 fill2
''', map_data)
def testExpandSizeBad(self):
"""Test an expanding entry which fails to provide contents"""
with test_util.capture_sys_output() as (stdout, stderr):
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('089_expand_size_bad.dts', map=True)
self.assertIn("Node '/binman/_testing': Cannot obtain contents when "
'expanding entry', str(e.exception))
def testHash(self):
"""Test hashing of the contents of an entry"""
_, _, _, out_dtb_fname = self._DoReadFileDtb('090_hash.dts',
use_real_dtb=True, update_dtb=True)
dtb = fdt.Fdt(out_dtb_fname)
dtb.Scan()
hash_node = dtb.GetNode('/binman/u-boot/hash').props['value']
m = hashlib.sha256()
m.update(U_BOOT_DATA)
self.assertEqual(m.digest(), b''.join(hash_node.value))
def testHashNoAlgo(self):
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('091_hash_no_algo.dts', update_dtb=True)
self.assertIn("Node \'/binman/u-boot\': Missing \'algo\' property for "
'hash node', str(e.exception))
def testHashBadAlgo(self):
with self.assertRaises(ValueError) as e:
self._DoReadFileDtb('092_hash_bad_algo.dts', update_dtb=True)
self.assertIn("Node '/binman/u-boot': Unknown hash algorithm",
str(e.exception))
def testHashSection(self):
"""Test hashing of the contents of an entry"""
_, _, _, out_dtb_fname = self._DoReadFileDtb('099_hash_section.dts',
use_real_dtb=True, update_dtb=True)
dtb = fdt.Fdt(out_dtb_fname)
dtb.Scan()
hash_node = dtb.GetNode('/binman/section/hash').props['value']
m = hashlib.sha256()
m.update(U_BOOT_DATA)
m.update(tools.GetBytes(ord('a'), 16))
self.assertEqual(m.digest(), b''.join(hash_node.value))
def testPackUBootTplMicrocode(self):
"""Test that x86 microcode can be handled correctly in TPL
We expect to see the following in the image, in order:
u-boot-tpl-nodtb.bin with a microcode pointer inserted at the correct
place
u-boot-tpl.dtb with the microcode removed
the microcode
"""
with open(self.TestFile('u_boot_ucode_ptr'), 'rb') as fd:
TestFunctional._MakeInputFile('tpl/u-boot-tpl', fd.read())
first, pos_and_size = self._RunMicrocodeTest('093_x86_tpl_ucode.dts',
U_BOOT_TPL_NODTB_DATA)
self.assertEqual(b'tplnodtb with microc' + pos_and_size +
b'ter somewhere in here', first)
def testFmapX86(self):
"""Basic test of generation of a flashrom fmap"""
data = self._DoReadFile('094_fmap_x86.dts')
fhdr, fentries = fmap_util.DecodeFmap(data[32:])
expected = U_BOOT_DATA + MRC_DATA + tools.GetBytes(ord('a'), 32 - 7)
self.assertEqual(expected, data[:32])
fhdr, fentries = fmap_util.DecodeFmap(data[32:])
self.assertEqual(0x100, fhdr.image_size)
self.assertEqual(0, fentries[0].offset)
self.assertEqual(4, fentries[0].size)
self.assertEqual(b'U_BOOT', fentries[0].name)
self.assertEqual(4, fentries[1].offset)
self.assertEqual(3, fentries[1].size)
self.assertEqual(b'INTEL_MRC', fentries[1].name)
self.assertEqual(32, fentries[2].offset)
self.assertEqual(fmap_util.FMAP_HEADER_LEN +
fmap_util.FMAP_AREA_LEN * 3, fentries[2].size)
self.assertEqual(b'FMAP', fentries[2].name)
def testFmapX86Section(self):
"""Basic test of generation of a flashrom fmap"""
data = self._DoReadFile('095_fmap_x86_section.dts')
expected = U_BOOT_DATA + MRC_DATA + tools.GetBytes(ord('b'), 32 - 7)
self.assertEqual(expected, data[:32])
fhdr, fentries = fmap_util.DecodeFmap(data[36:])
self.assertEqual(0x100, fhdr.image_size)
self.assertEqual(0, fentries[0].offset)
self.assertEqual(4, fentries[0].size)
self.assertEqual(b'U_BOOT', fentries[0].name)
self.assertEqual(4, fentries[1].offset)
self.assertEqual(3, fentries[1].size)
self.assertEqual(b'INTEL_MRC', fentries[1].name)
self.assertEqual(36, fentries[2].offset)
self.assertEqual(fmap_util.FMAP_HEADER_LEN +
fmap_util.FMAP_AREA_LEN * 3, fentries[2].size)
self.assertEqual(b'FMAP', fentries[2].name)
def testElf(self):
"""Basic test of ELF entries"""
self._SetupSplElf()
with open(self.TestFile('bss_data'), 'rb') as fd:
TestFunctional._MakeInputFile('tpl/u-boot-tpl', fd.read())
with open(self.TestFile('bss_data'), 'rb') as fd:
TestFunctional._MakeInputFile('-boot', fd.read())
data = self._DoReadFile('096_elf.dts')
def testElfStrip(self):
"""Basic test of ELF entries"""
self._SetupSplElf()
with open(self.TestFile('bss_data'), 'rb') as fd:
TestFunctional._MakeInputFile('-boot', fd.read())
data = self._DoReadFile('097_elf_strip.dts')
def testPackOverlapMap(self):
"""Test that overlapping regions are detected"""
with test_util.capture_sys_output() as (stdout, stderr):
with self.assertRaises(ValueError) as e:
self._DoTestFile('014_pack_overlap.dts', map=True)
map_fname = tools.GetOutputFilename('image.map')
self.assertEqual("Wrote map file '%s' to show errors\n" % map_fname,
stdout.getvalue())
# We should not get an inmage, but there should be a map file
self.assertFalse(os.path.exists(tools.GetOutputFilename('image.bin')))
self.assertTrue(os.path.exists(map_fname))
map_data = tools.ReadFile(map_fname, binary=False)
self.assertEqual('''ImagePos Offset Size Name
<none> 00000000 00000007 main-section
<none> 00000000 00000004 u-boot
<none> 00000003 00000004 u-boot-align
''', map_data)
def testPackRefCode(self):
"""Test that an image with an Intel Reference code binary works"""
data = self._DoReadFile('100_intel_refcode.dts')
self.assertEqual(REFCODE_DATA, data[:len(REFCODE_DATA)])
def testSectionOffset(self):
"""Tests use of a section with an offset"""
data, _, map_data, _ = self._DoReadFileDtb('101_sections_offset.dts',
map=True)
self.assertEqual('''ImagePos Offset Size Name
00000000 00000000 00000038 main-section
00000004 00000004 00000010 section@0
00000004 00000000 00000004 u-boot
00000018 00000018 00000010 section@1
00000018 00000000 00000004 u-boot
0000002c 0000002c 00000004 section@2
0000002c 00000000 00000004 u-boot
''', map_data)
self.assertEqual(data,
tools.GetBytes(0x26, 4) + U_BOOT_DATA +
tools.GetBytes(0x21, 12) +
tools.GetBytes(0x26, 4) + U_BOOT_DATA +
tools.GetBytes(0x61, 12) +
tools.GetBytes(0x26, 4) + U_BOOT_DATA +
tools.GetBytes(0x26, 8))
def testCbfsRaw(self):
"""Test base handling of a Coreboot Filesystem (CBFS)
The exact contents of the CBFS is verified by similar tests in
cbfs_util_test.py. The tests here merely check that the files added to
the CBFS can be found in the final image.
"""
data = self._DoReadFile('102_cbfs_raw.dts')
size = 0xb0
cbfs = cbfs_util.CbfsReader(data)
self.assertEqual(size, cbfs.rom_size)
self.assertIn('u-boot-dtb', cbfs.files)
cfile = cbfs.files['u-boot-dtb']
self.assertEqual(U_BOOT_DTB_DATA, cfile.data)
def testCbfsArch(self):
"""Test on non-x86 architecture"""
data = self._DoReadFile('103_cbfs_raw_ppc.dts')
size = 0x100
cbfs = cbfs_util.CbfsReader(data)
self.assertEqual(size, cbfs.rom_size)
self.assertIn('u-boot-dtb', cbfs.files)
cfile = cbfs.files['u-boot-dtb']
self.assertEqual(U_BOOT_DTB_DATA, cfile.data)
def testCbfsStage(self):
"""Tests handling of a Coreboot Filesystem (CBFS)"""
if not elf.ELF_TOOLS:
self.skipTest('Python elftools not available')
elf_fname = os.path.join(self._indir, 'cbfs-stage.elf')
elf.MakeElf(elf_fname, U_BOOT_DATA, U_BOOT_DTB_DATA)
size = 0xb0
data = self._DoReadFile('104_cbfs_stage.dts')
cbfs = cbfs_util.CbfsReader(data)
self.assertEqual(size, cbfs.rom_size)
self.assertIn('u-boot', cbfs.files)
cfile = cbfs.files['u-boot']
self.assertEqual(U_BOOT_DATA + U_BOOT_DTB_DATA, cfile.data)
def testCbfsRawCompress(self):
"""Test handling of compressing raw files"""
self._CheckLz4()
data = self._DoReadFile('105_cbfs_raw_compress.dts')
size = 0x140
cbfs = cbfs_util.CbfsReader(data)
self.assertIn('u-boot', cbfs.files)
cfile = cbfs.files['u-boot']
self.assertEqual(COMPRESS_DATA, cfile.data)
def testCbfsBadArch(self):
"""Test handling of a bad architecture"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('106_cbfs_bad_arch.dts')
self.assertIn("Invalid architecture 'bad-arch'", str(e.exception))
def testCbfsNoSize(self):
"""Test handling of a missing size property"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('107_cbfs_no_size.dts')
self.assertIn('entry must have a size property', str(e.exception))
def testCbfsNoCOntents(self):
"""Test handling of a CBFS entry which does not provide contentsy"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('108_cbfs_no_contents.dts')
self.assertIn('Could not complete processing of contents',
str(e.exception))
def testCbfsBadCompress(self):
"""Test handling of a bad architecture"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('109_cbfs_bad_compress.dts')
self.assertIn("Invalid compression in 'u-boot': 'invalid-algo'",
str(e.exception))
def testCbfsNamedEntries(self):
"""Test handling of named entries"""
data = self._DoReadFile('110_cbfs_name.dts')
cbfs = cbfs_util.CbfsReader(data)
self.assertIn('FRED', cbfs.files)
cfile1 = cbfs.files['FRED']
self.assertEqual(U_BOOT_DATA, cfile1.data)
self.assertIn('hello', cbfs.files)
cfile2 = cbfs.files['hello']
self.assertEqual(U_BOOT_DTB_DATA, cfile2.data)
def _SetupIfwi(self, fname):
"""Set up to run an IFWI test
Args:
fname: Filename of input file to provide (fitimage.bin or ifwi.bin)
"""
self._SetupSplElf()
# Intel Integrated Firmware Image (IFWI) file
with gzip.open(self.TestFile('%s.gz' % fname), 'rb') as fd:
data = fd.read()
TestFunctional._MakeInputFile(fname,data)
def _CheckIfwi(self, data):
"""Check that an image with an IFWI contains the correct output
Args:
data: Conents of output file
"""
expected_desc = tools.ReadFile(self.TestFile('descriptor.bin'))
if data[:0x1000] != expected_desc:
self.fail('Expected descriptor binary at start of image')
# We expect to find the TPL wil in subpart IBBP entry IBBL
image_fname = tools.GetOutputFilename('image.bin')
tpl_fname = tools.GetOutputFilename('tpl.out')
tools.RunIfwiTool(image_fname, tools.CMD_EXTRACT, fname=tpl_fname,
subpart='IBBP', entry_name='IBBL')
tpl_data = tools.ReadFile(tpl_fname)
self.assertEqual(tpl_data[:len(U_BOOT_TPL_DATA)], U_BOOT_TPL_DATA)
def testPackX86RomIfwi(self):
"""Test that an x86 ROM with Integrated Firmware Image can be created"""
self._SetupIfwi('fitimage.bin')
data = self._DoReadFile('111_x86-rom-ifwi.dts')
self._CheckIfwi(data)
def testPackX86RomIfwiNoDesc(self):
"""Test that an x86 ROM with IFWI can be created from an ifwi.bin file"""
self._SetupIfwi('ifwi.bin')
data = self._DoReadFile('112_x86-rom-ifwi-nodesc.dts')
self._CheckIfwi(data)
def testPackX86RomIfwiNoData(self):
"""Test that an x86 ROM with IFWI handles missing data"""
self._SetupIfwi('ifwi.bin')
with self.assertRaises(ValueError) as e:
data = self._DoReadFile('113_x86-rom-ifwi-nodata.dts')
self.assertIn('Could not complete processing of contents',
str(e.exception))
def testCbfsOffset(self):
"""Test a CBFS with files at particular offsets
Like all CFBS tests, this is just checking the logic that calls
cbfs_util. See cbfs_util_test for fully tests (e.g. test_cbfs_offset()).
"""
data = self._DoReadFile('114_cbfs_offset.dts')
size = 0x200
cbfs = cbfs_util.CbfsReader(data)
self.assertEqual(size, cbfs.rom_size)
self.assertIn('u-boot', cbfs.files)
cfile = cbfs.files['u-boot']
self.assertEqual(U_BOOT_DATA, cfile.data)
self.assertEqual(0x40, cfile.cbfs_offset)
self.assertIn('u-boot-dtb', cbfs.files)
cfile2 = cbfs.files['u-boot-dtb']
self.assertEqual(U_BOOT_DTB_DATA, cfile2.data)
self.assertEqual(0x140, cfile2.cbfs_offset)
def testFdtmap(self):
"""Test an FDT map can be inserted in the image"""
data = self.data = self._DoReadFileRealDtb('115_fdtmap.dts')
fdtmap_data = data[len(U_BOOT_DATA):]
magic = fdtmap_data[:8]
self.assertEqual('_FDTMAP_', magic)
self.assertEqual(tools.GetBytes(0, 8), fdtmap_data[8:16])
fdt_data = fdtmap_data[16:]
dtb = fdt.Fdt.FromData(fdt_data)
dtb.Scan()
props = self._GetPropTree(dtb, BASE_DTB_PROPS, prefix='/')
self.assertEqual({
'image-pos': 0,
'offset': 0,
'u-boot:offset': 0,
'u-boot:size': len(U_BOOT_DATA),
'u-boot:image-pos': 0,
'fdtmap:image-pos': 4,
'fdtmap:offset': 4,
'fdtmap:size': len(fdtmap_data),
'size': len(data),
}, props)
def testFdtmapNoMatch(self):
"""Check handling of an FDT map when the section cannot be found"""
self.data = self._DoReadFileRealDtb('115_fdtmap.dts')
# Mangle the section name, which should cause a mismatch between the
# correct FDT path and the one expected by the section
image = control.images['image']
image._node.path += '-suffix'
entries = image.GetEntries()
fdtmap = entries['fdtmap']
with self.assertRaises(ValueError) as e:
fdtmap._GetFdtmap()
self.assertIn("Cannot locate node for path '/binman-suffix'",
str(e.exception))
def testFdtmapHeader(self):
"""Test an FDT map and image header can be inserted in the image"""
data = self.data = self._DoReadFileRealDtb('116_fdtmap_hdr.dts')
fdtmap_pos = len(U_BOOT_DATA)
fdtmap_data = data[fdtmap_pos:]
fdt_data = fdtmap_data[16:]
dtb = fdt.Fdt.FromData(fdt_data)
fdt_size = dtb.GetFdtObj().totalsize()
hdr_data = data[-8:]
self.assertEqual('BinM', hdr_data[:4])
offset = struct.unpack('<I', hdr_data[4:])[0] & 0xffffffff
self.assertEqual(fdtmap_pos - 0x400, offset - (1 << 32))
def testFdtmapHeaderStart(self):
"""Test an image header can be inserted at the image start"""
data = self.data = self._DoReadFileRealDtb('117_fdtmap_hdr_start.dts')
fdtmap_pos = 0x100 + len(U_BOOT_DATA)
hdr_data = data[:8]
self.assertEqual('BinM', hdr_data[:4])
offset = struct.unpack('<I', hdr_data[4:])[0]
self.assertEqual(fdtmap_pos, offset)
def testFdtmapHeaderPos(self):
"""Test an image header can be inserted at a chosen position"""
data = self.data = self._DoReadFileRealDtb('118_fdtmap_hdr_pos.dts')
fdtmap_pos = 0x100 + len(U_BOOT_DATA)
hdr_data = data[0x80:0x88]
self.assertEqual('BinM', hdr_data[:4])
offset = struct.unpack('<I', hdr_data[4:])[0]
self.assertEqual(fdtmap_pos, offset)
def testHeaderMissingFdtmap(self):
"""Test an image header requires an fdtmap"""
with self.assertRaises(ValueError) as e:
self.data = self._DoReadFileRealDtb('119_fdtmap_hdr_missing.dts')
self.assertIn("'image_header' section must have an 'fdtmap' sibling",
str(e.exception))
def testHeaderNoLocation(self):
"""Test an image header with a no specified location is detected"""
with self.assertRaises(ValueError) as e:
self.data = self._DoReadFileRealDtb('120_hdr_no_location.dts')
self.assertIn("Invalid location 'None', expected 'start' or 'end'",
str(e.exception))
def testEntryExpand(self):
"""Test expanding an entry after it is packed"""
data = self._DoReadFile('121_entry_expand.dts')
self.assertEqual(b'aaa', data[:3])
self.assertEqual(U_BOOT_DATA, data[3:3 + len(U_BOOT_DATA)])
self.assertEqual(b'aaa', data[-3:])
def testEntryExpandBad(self):
"""Test expanding an entry after it is packed, twice"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('122_entry_expand_twice.dts')
self.assertIn("Image '/binman': Entries changed size after packing",
str(e.exception))
def testEntryExpandSection(self):
"""Test expanding an entry within a section after it is packed"""
data = self._DoReadFile('123_entry_expand_section.dts')
self.assertEqual(b'aaa', data[:3])
self.assertEqual(U_BOOT_DATA, data[3:3 + len(U_BOOT_DATA)])
self.assertEqual(b'aaa', data[-3:])
def testCompressDtb(self):
"""Test that compress of device-tree files is supported"""
self._CheckLz4()
data = self.data = self._DoReadFileRealDtb('124_compress_dtb.dts')
self.assertEqual(U_BOOT_DATA, data[:len(U_BOOT_DATA)])
comp_data = data[len(U_BOOT_DATA):]
orig = self._decompress(comp_data)
dtb = fdt.Fdt.FromData(orig)
dtb.Scan()
props = self._GetPropTree(dtb, ['size', 'uncomp-size'])
expected = {
'u-boot:size': len(U_BOOT_DATA),
'u-boot-dtb:uncomp-size': len(orig),
'u-boot-dtb:size': len(comp_data),
'size': len(data),
}
self.assertEqual(expected, props)
def testCbfsUpdateFdt(self):
"""Test that we can update the device tree with CBFS offset/size info"""
self._CheckLz4()
data, _, _, out_dtb_fname = self._DoReadFileDtb('125_cbfs_update.dts',
update_dtb=True)
dtb = fdt.Fdt(out_dtb_fname)
dtb.Scan()
props = self._GetPropTree(dtb, BASE_DTB_PROPS + ['uncomp-size'])
del props['cbfs/u-boot:size']
self.assertEqual({
'offset': 0,
'size': len(data),
'image-pos': 0,
'cbfs:offset': 0,
'cbfs:size': len(data),
'cbfs:image-pos': 0,
'cbfs/u-boot:offset': 0x38,
'cbfs/u-boot:uncomp-size': len(U_BOOT_DATA),
'cbfs/u-boot:image-pos': 0x38,
'cbfs/u-boot-dtb:offset': 0xb8,
'cbfs/u-boot-dtb:size': len(U_BOOT_DATA),
'cbfs/u-boot-dtb:image-pos': 0xb8,
}, props)
def testCbfsBadType(self):
"""Test an image header with a no specified location is detected"""
with self.assertRaises(ValueError) as e:
self._DoReadFile('126_cbfs_bad_type.dts')
self.assertIn("Unknown cbfs-type 'badtype'", str(e.exception))
def testList(self):
"""Test listing the files in an image"""
self._CheckLz4()
data = self._DoReadFile('127_list.dts')
image = control.images['image']
entries = image.BuildEntryList()
self.assertEqual(7, len(entries))
ent = entries[0]
self.assertEqual(0, ent.indent)
self.assertEqual('main-section', ent.name)
self.assertEqual('section', ent.etype)
self.assertEqual(len(data), ent.size)
self.assertEqual(0, ent.image_pos)
self.assertEqual(None, ent.uncomp_size)
self.assertEqual(0, ent.offset)
ent = entries[1]
self.assertEqual(1, ent.indent)
self.assertEqual('u-boot', ent.name)
self.assertEqual('u-boot', ent.etype)
self.assertEqual(len(U_BOOT_DATA), ent.size)
self.assertEqual(0, ent.image_pos)
self.assertEqual(None, ent.uncomp_size)
self.assertEqual(0, ent.offset)
ent = entries[2]
self.assertEqual(1, ent.indent)
self.assertEqual('section', ent.name)
self.assertEqual('section', ent.etype)
section_size = ent.size
self.assertEqual(0x100, ent.image_pos)
self.assertEqual(None, ent.uncomp_size)
self.assertEqual(0x100, ent.offset)
ent = entries[3]
self.assertEqual(2, ent.indent)
self.assertEqual('cbfs', ent.name)
self.assertEqual('cbfs', ent.etype)
self.assertEqual(0x400, ent.size)
self.assertEqual(0x100, ent.image_pos)
self.assertEqual(None, ent.uncomp_size)
self.assertEqual(0, ent.offset)
ent = entries[4]
self.assertEqual(3, ent.indent)
self.assertEqual('u-boot', ent.name)
self.assertEqual('u-boot', ent.etype)
self.assertEqual(len(U_BOOT_DATA), ent.size)
self.assertEqual(0x138, ent.image_pos)
self.assertEqual(None, ent.uncomp_size)
self.assertEqual(0x38, ent.offset)
ent = entries[5]
self.assertEqual(3, ent.indent)
self.assertEqual('u-boot-dtb', ent.name)
self.assertEqual('text', ent.etype)
self.assertGreater(len(COMPRESS_DATA), ent.size)
self.assertEqual(0x178, ent.image_pos)
self.assertEqual(len(COMPRESS_DATA), ent.uncomp_size)
self.assertEqual(0x78, ent.offset)
ent = entries[6]
self.assertEqual(2, ent.indent)
self.assertEqual('u-boot-dtb', ent.name)
self.assertEqual('u-boot-dtb', ent.etype)
self.assertEqual(0x500, ent.image_pos)
self.assertEqual(len(U_BOOT_DTB_DATA), ent.uncomp_size)
dtb_size = ent.size
# Compressing this data expands it since headers are added
self.assertGreater(dtb_size, len(U_BOOT_DTB_DATA))
self.assertEqual(0x400, ent.offset)
self.assertEqual(len(data), 0x100 + section_size)
self.assertEqual(section_size, 0x400 + dtb_size)
def testFindFdtmap(self):
"""Test locating an FDT map in an image"""
self._CheckLz4()
data = self.data = self._DoReadFileRealDtb('128_decode_image.dts')
image = control.images['image']
entries = image.GetEntries()
entry = entries['fdtmap']
self.assertEqual(entry.image_pos, fdtmap.LocateFdtmap(data))
def testFindFdtmapMissing(self):
"""Test failing to locate an FDP map"""
data = self._DoReadFile('005_simple.dts')
self.assertEqual(None, fdtmap.LocateFdtmap(data))
def testFindImageHeader(self):
"""Test locating a image header"""
self._CheckLz4()
data = self.data = self._DoReadFileRealDtb('128_decode_image.dts')
image = control.images['image']
entries = image.GetEntries()
entry = entries['fdtmap']
# The header should point to the FDT map
self.assertEqual(entry.image_pos, image_header.LocateHeaderOffset(data))
def testFindImageHeaderStart(self):
"""Test locating a image header located at the start of an image"""
data = self.data = self._DoReadFileRealDtb('117_fdtmap_hdr_start.dts')
image = control.images['image']
entries = image.GetEntries()
entry = entries['fdtmap']
# The header should point to the FDT map
self.assertEqual(entry.image_pos, image_header.LocateHeaderOffset(data))
def testFindImageHeaderMissing(self):
"""Test failing to locate an image header"""
data = self._DoReadFile('005_simple.dts')
self.assertEqual(None, image_header.LocateHeaderOffset(data))
def testReadImage(self):
"""Test reading an image and accessing its FDT map"""
self._CheckLz4()
data = self.data = self._DoReadFileRealDtb('128_decode_image.dts')
image_fname = tools.GetOutputFilename('image.bin')
orig_image = control.images['image']
image = Image.FromFile(image_fname)
self.assertEqual(orig_image.GetEntries().keys(),
image.GetEntries().keys())
orig_entry = orig_image.GetEntries()['fdtmap']
entry = image.GetEntries()['fdtmap']
self.assertEquals(orig_entry.offset, entry.offset)
self.assertEquals(orig_entry.size, entry.size)
self.assertEquals(orig_entry.image_pos, entry.image_pos)
def testReadImageNoHeader(self):
"""Test accessing an image's FDT map without an image header"""
self._CheckLz4()
data = self._DoReadFileRealDtb('129_decode_image_nohdr.dts')
image_fname = tools.GetOutputFilename('image.bin')
image = Image.FromFile(image_fname)
self.assertTrue(isinstance(image, Image))
self.assertEqual('image', image.image_name[-5:])
def testReadImageFail(self):
"""Test failing to read an image image's FDT map"""
self._DoReadFile('005_simple.dts')
image_fname = tools.GetOutputFilename('image.bin')
with self.assertRaises(ValueError) as e:
image = Image.FromFile(image_fname)
self.assertIn("Cannot find FDT map in image", str(e.exception))
def testListCmd(self):
"""Test listing the files in an image using an Fdtmap"""
self._CheckLz4()
data = self._DoReadFileRealDtb('130_list_fdtmap.dts')
# lz4 compression size differs depending on the version
image = control.images['image']
entries = image.GetEntries()
section_size = entries['section'].size
fdt_size = entries['section'].GetEntries()['u-boot-dtb'].size
fdtmap_offset = entries['fdtmap'].offset
try:
tmpdir, updated_fname = self._SetupImageInTmpdir()
with test_util.capture_sys_output() as (stdout, stderr):
self._DoBinman('ls', '-i', updated_fname)
finally:
shutil.rmtree(tmpdir)
lines = stdout.getvalue().splitlines()
expected = [
'Name Image-pos Size Entry-type Offset Uncomp-size',
'----------------------------------------------------------------------',
'main-section 0 c00 section 0',
' u-boot 0 4 u-boot 0',
' section 100 %x section 100' % section_size,
' cbfs 100 400 cbfs 0',
' u-boot 138 4 u-boot 38',
' u-boot-dtb 180 10f u-boot-dtb 80 3c9',
' u-boot-dtb 500 %x u-boot-dtb 400 3c9' % fdt_size,
' fdtmap %x 3b4 fdtmap %x' %
(fdtmap_offset, fdtmap_offset),
' image-header bf8 8 image-header bf8',
]
self.assertEqual(expected, lines)
def testListCmdFail(self):
"""Test failing to list an image"""
self._DoReadFile('005_simple.dts')
try:
tmpdir, updated_fname = self._SetupImageInTmpdir()
with self.assertRaises(ValueError) as e:
self._DoBinman('ls', '-i', updated_fname)
finally:
shutil.rmtree(tmpdir)
self.assertIn("Cannot find FDT map in image", str(e.exception))
def _RunListCmd(self, paths, expected):
"""List out entries and check the result
Args:
paths: List of paths to pass to the list command
expected: Expected list of filenames to be returned, in order
"""
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
image = Image.FromFile(image_fname)
lines = image.GetListEntries(paths)[1]
files = [line[0].strip() for line in lines[1:]]
self.assertEqual(expected, files)
def testListCmdSection(self):
"""Test listing the files in a section"""
self._RunListCmd(['section'],
['section', 'cbfs', 'u-boot', 'u-boot-dtb', 'u-boot-dtb'])
def testListCmdFile(self):
"""Test listing a particular file"""
self._RunListCmd(['*u-boot-dtb'], ['u-boot-dtb', 'u-boot-dtb'])
def testListCmdWildcard(self):
"""Test listing a wildcarded file"""
self._RunListCmd(['*boot*'],
['u-boot', 'u-boot', 'u-boot-dtb', 'u-boot-dtb'])
def testListCmdWildcardMulti(self):
"""Test listing a wildcarded file"""
self._RunListCmd(['*cb*', '*head*'],
['cbfs', 'u-boot', 'u-boot-dtb', 'image-header'])
def testListCmdEmpty(self):
"""Test listing a wildcarded file"""
self._RunListCmd(['nothing'], [])
def testListCmdPath(self):
"""Test listing the files in a sub-entry of a section"""
self._RunListCmd(['section/cbfs'], ['cbfs', 'u-boot', 'u-boot-dtb'])
def _RunExtractCmd(self, entry_name, decomp=True):
"""Extract an entry from an image
Args:
entry_name: Entry name to extract
decomp: True to decompress the data if compressed, False to leave
it in its raw uncompressed format
Returns:
data from entry
"""
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
return control.ReadEntry(image_fname, entry_name, decomp)
def testExtractSimple(self):
"""Test extracting a single file"""
data = self._RunExtractCmd('u-boot')
self.assertEqual(U_BOOT_DATA, data)
def testExtractSection(self):
"""Test extracting the files in a section"""
data = self._RunExtractCmd('section')
cbfs_data = data[:0x400]
cbfs = cbfs_util.CbfsReader(cbfs_data)
self.assertEqual(['u-boot', 'u-boot-dtb', ''], cbfs.files.keys())
dtb_data = data[0x400:]
dtb = self._decompress(dtb_data)
self.assertEqual(EXTRACT_DTB_SIZE, len(dtb))
def testExtractCompressed(self):
"""Test extracting compressed data"""
data = self._RunExtractCmd('section/u-boot-dtb')
self.assertEqual(EXTRACT_DTB_SIZE, len(data))
def testExtractRaw(self):
"""Test extracting compressed data without decompressing it"""
data = self._RunExtractCmd('section/u-boot-dtb', decomp=False)
dtb = self._decompress(data)
self.assertEqual(EXTRACT_DTB_SIZE, len(dtb))
def testExtractCbfs(self):
"""Test extracting CBFS data"""
data = self._RunExtractCmd('section/cbfs/u-boot')
self.assertEqual(U_BOOT_DATA, data)
def testExtractCbfsCompressed(self):
"""Test extracting CBFS compressed data"""
data = self._RunExtractCmd('section/cbfs/u-boot-dtb')
self.assertEqual(EXTRACT_DTB_SIZE, len(data))
def testExtractCbfsRaw(self):
"""Test extracting CBFS compressed data without decompressing it"""
data = self._RunExtractCmd('section/cbfs/u-boot-dtb', decomp=False)
dtb = tools.Decompress(data, 'lzma', with_header=False)
self.assertEqual(EXTRACT_DTB_SIZE, len(dtb))
def testExtractBadEntry(self):
"""Test extracting a bad section path"""
with self.assertRaises(ValueError) as e:
self._RunExtractCmd('section/does-not-exist')
self.assertIn("Entry 'does-not-exist' not found in '/section'",
str(e.exception))
def testExtractMissingFile(self):
"""Test extracting file that does not exist"""
with self.assertRaises(IOError) as e:
control.ReadEntry('missing-file', 'name')
def testExtractBadFile(self):
"""Test extracting an invalid file"""
fname = os.path.join(self._indir, 'badfile')
tools.WriteFile(fname, b'')
with self.assertRaises(ValueError) as e:
control.ReadEntry(fname, 'name')
def testExtractCmd(self):
"""Test extracting a file fron an image on the command line"""
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
fname = os.path.join(self._indir, 'output.extact')
try:
tmpdir, updated_fname = self._SetupImageInTmpdir()
with test_util.capture_sys_output() as (stdout, stderr):
self._DoBinman('extract', '-i', updated_fname, 'u-boot',
'-f', fname)
finally:
shutil.rmtree(tmpdir)
data = tools.ReadFile(fname)
self.assertEqual(U_BOOT_DATA, data)
def testExtractOneEntry(self):
"""Test extracting a single entry fron an image """
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
fname = os.path.join(self._indir, 'output.extact')
control.ExtractEntries(image_fname, fname, None, ['u-boot'])
data = tools.ReadFile(fname)
self.assertEqual(U_BOOT_DATA, data)
def _CheckExtractOutput(self, decomp):
"""Helper to test file output with and without decompression
Args:
decomp: True to decompress entry data, False to output it raw
"""
def _CheckPresent(entry_path, expect_data, expect_size=None):
"""Check and remove expected file
This checks the data/size of a file and removes the file both from
the outfiles set and from the output directory. Once all files are
processed, both the set and directory should be empty.
Args:
entry_path: Entry path
expect_data: Data to expect in file, or None to skip check
expect_size: Size of data to expect in file, or None to skip
"""
path = os.path.join(outdir, entry_path)
data = tools.ReadFile(path)
os.remove(path)
if expect_data:
self.assertEqual(expect_data, data)
elif expect_size:
self.assertEqual(expect_size, len(data))
outfiles.remove(path)
def _CheckDirPresent(name):
"""Remove expected directory
This gives an error if the directory does not exist as expected
Args:
name: Name of directory to remove
"""
path = os.path.join(outdir, name)
os.rmdir(path)
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
outdir = os.path.join(self._indir, 'extract')
einfos = control.ExtractEntries(image_fname, None, outdir, [], decomp)
# Create a set of all file that were output (should be 9)
outfiles = set()
for root, dirs, files in os.walk(outdir):
outfiles |= set([os.path.join(root, fname) for fname in files])
self.assertEqual(9, len(outfiles))
self.assertEqual(9, len(einfos))
image = control.images['image']
entries = image.GetEntries()
# Check the 9 files in various ways
section = entries['section']
section_entries = section.GetEntries()
cbfs_entries = section_entries['cbfs'].GetEntries()
_CheckPresent('u-boot', U_BOOT_DATA)
_CheckPresent('section/cbfs/u-boot', U_BOOT_DATA)
dtb_len = EXTRACT_DTB_SIZE
if not decomp:
dtb_len = cbfs_entries['u-boot-dtb'].size
_CheckPresent('section/cbfs/u-boot-dtb', None, dtb_len)
if not decomp:
dtb_len = section_entries['u-boot-dtb'].size
_CheckPresent('section/u-boot-dtb', None, dtb_len)
fdtmap = entries['fdtmap']
_CheckPresent('fdtmap', fdtmap.data)
hdr = entries['image-header']
_CheckPresent('image-header', hdr.data)
_CheckPresent('section/root', section.data)
cbfs = section_entries['cbfs']
_CheckPresent('section/cbfs/root', cbfs.data)
data = tools.ReadFile(image_fname)
_CheckPresent('root', data)
# There should be no files left. Remove all the directories to check.
# If there are any files/dirs remaining, one of these checks will fail.
self.assertEqual(0, len(outfiles))
_CheckDirPresent('section/cbfs')
_CheckDirPresent('section')
_CheckDirPresent('')
self.assertFalse(os.path.exists(outdir))
def testExtractAllEntries(self):
"""Test extracting all entries"""
self._CheckLz4()
self._CheckExtractOutput(decomp=True)
def testExtractAllEntriesRaw(self):
"""Test extracting all entries without decompressing them"""
self._CheckLz4()
self._CheckExtractOutput(decomp=False)
def testExtractSelectedEntries(self):
"""Test extracting some entries"""
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
outdir = os.path.join(self._indir, 'extract')
einfos = control.ExtractEntries(image_fname, None, outdir,
['*cb*', '*head*'])
# File output is tested by testExtractAllEntries(), so just check that
# the expected entries are selected
names = [einfo.name for einfo in einfos]
self.assertEqual(names,
['cbfs', 'u-boot', 'u-boot-dtb', 'image-header'])
def testExtractNoEntryPaths(self):
"""Test extracting some entries"""
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
with self.assertRaises(ValueError) as e:
control.ExtractEntries(image_fname, 'fname', None, [])
self.assertIn('Must specify an entry path to write with -f',
str(e.exception))
def testExtractTooManyEntryPaths(self):
"""Test extracting some entries"""
self._CheckLz4()
self._DoReadFileRealDtb('130_list_fdtmap.dts')
image_fname = tools.GetOutputFilename('image.bin')
with self.assertRaises(ValueError) as e:
control.ExtractEntries(image_fname, 'fname', None, ['a', 'b'])
self.assertIn('Must specify exactly one entry path to write with -f',
str(e.exception))
def testPackAlignSection(self):
"""Test that sections can have alignment"""
self._DoReadFile('131_pack_align_section.dts')
self.assertIn('image', control.images)
image = control.images['image']
entries = image.GetEntries()
self.assertEqual(3, len(entries))
# First u-boot
self.assertIn('u-boot', entries)
entry = entries['u-boot']
self.assertEqual(0, entry.offset)
self.assertEqual(0, entry.image_pos)
self.assertEqual(len(U_BOOT_DATA), entry.contents_size)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Section0
self.assertIn('section0', entries)
section0 = entries['section0']
self.assertEqual(0x10, section0.offset)
self.assertEqual(0x10, section0.image_pos)
self.assertEqual(len(U_BOOT_DATA), section0.size)
# Second u-boot
section_entries = section0.GetEntries()
self.assertIn('u-boot', section_entries)
entry = section_entries['u-boot']
self.assertEqual(0, entry.offset)
self.assertEqual(0x10, entry.image_pos)
self.assertEqual(len(U_BOOT_DATA), entry.contents_size)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Section1
self.assertIn('section1', entries)
section1 = entries['section1']
self.assertEqual(0x14, section1.offset)
self.assertEqual(0x14, section1.image_pos)
self.assertEqual(0x20, section1.size)
# Second u-boot
section_entries = section1.GetEntries()
self.assertIn('u-boot', section_entries)
entry = section_entries['u-boot']
self.assertEqual(0, entry.offset)
self.assertEqual(0x14, entry.image_pos)
self.assertEqual(len(U_BOOT_DATA), entry.contents_size)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Section2
self.assertIn('section2', section_entries)
section2 = section_entries['section2']
self.assertEqual(0x4, section2.offset)
self.assertEqual(0x18, section2.image_pos)
self.assertEqual(4, section2.size)
# Third u-boot
section_entries = section2.GetEntries()
self.assertIn('u-boot', section_entries)
entry = section_entries['u-boot']
self.assertEqual(0, entry.offset)
self.assertEqual(0x18, entry.image_pos)
self.assertEqual(len(U_BOOT_DATA), entry.contents_size)
self.assertEqual(len(U_BOOT_DATA), entry.size)
def _RunReplaceCmd(self, entry_name, data, decomp=True, allow_resize=True,
dts='132_replace.dts'):
"""Replace an entry in an image
This writes the entry data to update it, then opens the updated file and
returns the value that it now finds there.
Args:
entry_name: Entry name to replace
data: Data to replace it with
decomp: True to compress the data if needed, False if data is
already compressed so should be used as is
allow_resize: True to allow entries to change size, False to raise
an exception
Returns:
Tuple:
data from entry
data from fdtmap (excluding header)
Image object that was modified
"""
dtb_data = self._DoReadFileDtb(dts, use_real_dtb=True,
update_dtb=True)[1]
self.assertIn('image', control.images)
image = control.images['image']
entries = image.GetEntries()
orig_dtb_data = entries['u-boot-dtb'].data
orig_fdtmap_data = entries['fdtmap'].data
image_fname = tools.GetOutputFilename('image.bin')
updated_fname = tools.GetOutputFilename('image-updated.bin')
tools.WriteFile(updated_fname, tools.ReadFile(image_fname))
image = control.WriteEntry(updated_fname, entry_name, data, decomp,
allow_resize)
data = control.ReadEntry(updated_fname, entry_name, decomp)
# The DT data should not change unless resized:
if not allow_resize:
new_dtb_data = entries['u-boot-dtb'].data
self.assertEqual(new_dtb_data, orig_dtb_data)
new_fdtmap_data = entries['fdtmap'].data
self.assertEqual(new_fdtmap_data, orig_fdtmap_data)
return data, orig_fdtmap_data[fdtmap.FDTMAP_HDR_LEN:], image
def testReplaceSimple(self):
"""Test replacing a single file"""
expected = b'x' * len(U_BOOT_DATA)
data, expected_fdtmap, _ = self._RunReplaceCmd('u-boot', expected,
allow_resize=False)
self.assertEqual(expected, data)
# Test that the state looks right. There should be an FDT for the fdtmap
# that we jsut read back in, and it should match what we find in the
# 'control' tables. Checking for an FDT that does not exist should
# return None.
path, fdtmap = state.GetFdtContents('fdtmap')
self.assertIsNotNone(path)
self.assertEqual(expected_fdtmap, fdtmap)
dtb = state.GetFdtForEtype('fdtmap')
self.assertEqual(dtb.GetContents(), fdtmap)
missing_path, missing_fdtmap = state.GetFdtContents('missing')
self.assertIsNone(missing_path)
self.assertIsNone(missing_fdtmap)
missing_dtb = state.GetFdtForEtype('missing')
self.assertIsNone(missing_dtb)
self.assertEqual('/binman', state.fdt_path_prefix)
def testReplaceResizeFail(self):
"""Test replacing a file by something larger"""
expected = U_BOOT_DATA + b'x'
with self.assertRaises(ValueError) as e:
self._RunReplaceCmd('u-boot', expected, allow_resize=False,
dts='139_replace_repack.dts')
self.assertIn("Node '/u-boot': Entry data size does not match, but resize is disabled",
str(e.exception))
def testReplaceMulti(self):
"""Test replacing entry data where multiple images are generated"""
data = self._DoReadFileDtb('133_replace_multi.dts', use_real_dtb=True,
update_dtb=True)[0]
expected = b'x' * len(U_BOOT_DATA)
updated_fname = tools.GetOutputFilename('image-updated.bin')
tools.WriteFile(updated_fname, data)
entry_name = 'u-boot'
control.WriteEntry(updated_fname, entry_name, expected,
allow_resize=False)
data = control.ReadEntry(updated_fname, entry_name)
self.assertEqual(expected, data)
# Check the state looks right.
self.assertEqual('/binman/image', state.fdt_path_prefix)
# Now check we can write the first image
image_fname = tools.GetOutputFilename('first-image.bin')
updated_fname = tools.GetOutputFilename('first-updated.bin')
tools.WriteFile(updated_fname, tools.ReadFile(image_fname))
entry_name = 'u-boot'
control.WriteEntry(updated_fname, entry_name, expected,
allow_resize=False)
data = control.ReadEntry(updated_fname, entry_name)
self.assertEqual(expected, data)
# Check the state looks right.
self.assertEqual('/binman/first-image', state.fdt_path_prefix)
def testUpdateFdtAllRepack(self):
"""Test that all device trees are updated with offset/size info"""
data = self._DoReadFileRealDtb('134_fdt_update_all_repack.dts')
SECTION_SIZE = 0x300
DTB_SIZE = 602
FDTMAP_SIZE = 608
base_expected = {
'offset': 0,
'size': SECTION_SIZE + DTB_SIZE * 2 + FDTMAP_SIZE,
'image-pos': 0,
'section:offset': 0,
'section:size': SECTION_SIZE,
'section:image-pos': 0,
'section/u-boot-dtb:offset': 4,
'section/u-boot-dtb:size': 636,
'section/u-boot-dtb:image-pos': 4,
'u-boot-spl-dtb:offset': SECTION_SIZE,
'u-boot-spl-dtb:size': DTB_SIZE,
'u-boot-spl-dtb:image-pos': SECTION_SIZE,
'u-boot-tpl-dtb:offset': SECTION_SIZE + DTB_SIZE,
'u-boot-tpl-dtb:image-pos': SECTION_SIZE + DTB_SIZE,
'u-boot-tpl-dtb:size': DTB_SIZE,
'fdtmap:offset': SECTION_SIZE + DTB_SIZE * 2,
'fdtmap:size': FDTMAP_SIZE,
'fdtmap:image-pos': SECTION_SIZE + DTB_SIZE * 2,
}
main_expected = {
'section:orig-size': SECTION_SIZE,
'section/u-boot-dtb:orig-offset': 4,
}
# We expect three device-tree files in the output, with the first one
# within a fixed-size section.
# Read them in sequence. We look for an 'spl' property in the SPL tree,
# and 'tpl' in the TPL tree, to make sure they are distinct from the
# main U-Boot tree. All three should have the same positions and offset
# except that the main tree should include the main_expected properties
start = 4
for item in ['', 'spl', 'tpl', None]:
if item is None:
start += 16 # Move past fdtmap header
dtb = fdt.Fdt.FromData(data[start:])
dtb.Scan()
props = self._GetPropTree(dtb,
BASE_DTB_PROPS + REPACK_DTB_PROPS + ['spl', 'tpl'],
prefix='/' if item is None else '/binman/')
expected = dict(base_expected)
if item:
expected[item] = 0
else:
# Main DTB and fdtdec should include the 'orig-' properties
expected.update(main_expected)
# Helpful for debugging:
#for prop in sorted(props):
#print('prop %s %s %s' % (prop, props[prop], expected[prop]))
self.assertEqual(expected, props)
if item == '':
start = SECTION_SIZE
else:
start += dtb._fdt_obj.totalsize()
def testFdtmapHeaderMiddle(self):
"""Test an FDT map in the middle of an image when it should be at end"""
with self.assertRaises(ValueError) as e:
self._DoReadFileRealDtb('135_fdtmap_hdr_middle.dts')
self.assertIn("Invalid sibling order 'middle' for image-header: Must be at 'end' to match location",
str(e.exception))
def testFdtmapHeaderStartBad(self):
"""Test an FDT map in middle of an image when it should be at start"""
with self.assertRaises(ValueError) as e:
self._DoReadFileRealDtb('136_fdtmap_hdr_startbad.dts')
self.assertIn("Invalid sibling order 'end' for image-header: Must be at 'start' to match location",
str(e.exception))
def testFdtmapHeaderEndBad(self):
"""Test an FDT map at the start of an image when it should be at end"""
with self.assertRaises(ValueError) as e:
self._DoReadFileRealDtb('137_fdtmap_hdr_endbad.dts')
self.assertIn("Invalid sibling order 'start' for image-header: Must be at 'end' to match location",
str(e.exception))
def testFdtmapHeaderNoSize(self):
"""Test an image header at the end of an image with undefined size"""
self._DoReadFileRealDtb('138_fdtmap_hdr_nosize.dts')
def testReplaceResize(self):
"""Test replacing a single file in an entry with a larger file"""
expected = U_BOOT_DATA + b'x'
data, _, image = self._RunReplaceCmd('u-boot', expected,
dts='139_replace_repack.dts')
self.assertEqual(expected, data)
entries = image.GetEntries()
dtb_data = entries['u-boot-dtb'].data
dtb = fdt.Fdt.FromData(dtb_data)
dtb.Scan()
# The u-boot section should now be larger in the dtb
node = dtb.GetNode('/binman/u-boot')
self.assertEqual(len(expected), fdt_util.GetInt(node, 'size'))
# Same for the fdtmap
fdata = entries['fdtmap'].data
fdtb = fdt.Fdt.FromData(fdata[fdtmap.FDTMAP_HDR_LEN:])
fdtb.Scan()
fnode = fdtb.GetNode('/u-boot')
self.assertEqual(len(expected), fdt_util.GetInt(fnode, 'size'))
def testReplaceResizeNoRepack(self):
"""Test replacing an entry with a larger file when not allowed"""
expected = U_BOOT_DATA + b'x'
with self.assertRaises(ValueError) as e:
self._RunReplaceCmd('u-boot', expected)
self.assertIn('Entry data size does not match, but allow-repack is not present for this image',
str(e.exception))
def testEntryShrink(self):
"""Test contracting an entry after it is packed"""
try:
state.SetAllowEntryContraction(True)
data = self._DoReadFileDtb('140_entry_shrink.dts',
update_dtb=True)[0]
finally:
state.SetAllowEntryContraction(False)
self.assertEqual(b'a', data[:1])
self.assertEqual(U_BOOT_DATA, data[1:1 + len(U_BOOT_DATA)])
self.assertEqual(b'a', data[-1:])
def testEntryShrinkFail(self):
"""Test not being allowed to contract an entry after it is packed"""
data = self._DoReadFileDtb('140_entry_shrink.dts', update_dtb=True)[0]
# In this case there is a spare byte at the end of the data. The size of
# the contents is only 1 byte but we still have the size before it
# shrunk.
self.assertEqual(b'a\0', data[:2])
self.assertEqual(U_BOOT_DATA, data[2:2 + len(U_BOOT_DATA)])
self.assertEqual(b'a\0', data[-2:])
def testDescriptorOffset(self):
"""Test that the Intel descriptor is always placed at at the start"""
data = self._DoReadFileDtb('141_descriptor_offset.dts')
image = control.images['image']
entries = image.GetEntries()
desc = entries['intel-descriptor']
self.assertEqual(0xff800000, desc.offset);
self.assertEqual(0xff800000, desc.image_pos);
def testReplaceCbfs(self):
"""Test replacing a single file in CBFS without changing the size"""
self._CheckLz4()
expected = b'x' * len(U_BOOT_DATA)
data = self._DoReadFileRealDtb('142_replace_cbfs.dts')
updated_fname = tools.GetOutputFilename('image-updated.bin')
tools.WriteFile(updated_fname, data)
entry_name = 'section/cbfs/u-boot'
control.WriteEntry(updated_fname, entry_name, expected,
allow_resize=True)
data = control.ReadEntry(updated_fname, entry_name)
self.assertEqual(expected, data)
def testReplaceResizeCbfs(self):
"""Test replacing a single file in CBFS with one of a different size"""
self._CheckLz4()
expected = U_BOOT_DATA + b'x'
data = self._DoReadFileRealDtb('142_replace_cbfs.dts')
updated_fname = tools.GetOutputFilename('image-updated.bin')
tools.WriteFile(updated_fname, data)
entry_name = 'section/cbfs/u-boot'
control.WriteEntry(updated_fname, entry_name, expected,
allow_resize=True)
data = control.ReadEntry(updated_fname, entry_name)
self.assertEqual(expected, data)
def _SetupForReplace(self):
"""Set up some files to use to replace entries
This generates an image, copies it to a new file, extracts all the files
in it and updates some of them
Returns:
List
Image filename
Output directory
Expected values for updated entries, each a string
"""
data = self._DoReadFileRealDtb('143_replace_all.dts')
updated_fname = tools.GetOutputFilename('image-updated.bin')
tools.WriteFile(updated_fname, data)
outdir = os.path.join(self._indir, 'extract')
einfos = control.ExtractEntries(updated_fname, None, outdir, [])
expected1 = b'x' + U_BOOT_DATA + b'y'
u_boot_fname1 = os.path.join(outdir, 'u-boot')
tools.WriteFile(u_boot_fname1, expected1)
expected2 = b'a' + U_BOOT_DATA + b'b'
u_boot_fname2 = os.path.join(outdir, 'u-boot2')
tools.WriteFile(u_boot_fname2, expected2)
expected_text = b'not the same text'
text_fname = os.path.join(outdir, 'text')
tools.WriteFile(text_fname, expected_text)
dtb_fname = os.path.join(outdir, 'u-boot-dtb')
dtb = fdt.FdtScan(dtb_fname)
node = dtb.GetNode('/binman/text')
node.AddString('my-property', 'the value')
dtb.Sync(auto_resize=True)
dtb.Flush()
return updated_fname, outdir, expected1, expected2, expected_text
def _CheckReplaceMultiple(self, entry_paths):
"""Handle replacing the contents of multiple entries
Args:
entry_paths: List of entry paths to replace
Returns:
List
Dict of entries in the image:
key: Entry name
Value: Entry object
Expected values for updated entries, each a string
"""
updated_fname, outdir, expected1, expected2, expected_text = (
self._SetupForReplace())
control.ReplaceEntries(updated_fname, None, outdir, entry_paths)
image = Image.FromFile(updated_fname)
image.LoadData()
return image.GetEntries(), expected1, expected2, expected_text
def testReplaceAll(self):
"""Test replacing the contents of all entries"""
entries, expected1, expected2, expected_text = (
self._CheckReplaceMultiple([]))
data = entries['u-boot'].data
self.assertEqual(expected1, data)
data = entries['u-boot2'].data
self.assertEqual(expected2, data)
data = entries['text'].data
self.assertEqual(expected_text, data)
# Check that the device tree is updated
data = entries['u-boot-dtb'].data
dtb = fdt.Fdt.FromData(data)
dtb.Scan()
node = dtb.GetNode('/binman/text')
self.assertEqual('the value', node.props['my-property'].value)
def testReplaceSome(self):
"""Test replacing the contents of a few entries"""
entries, expected1, expected2, expected_text = (
self._CheckReplaceMultiple(['u-boot2', 'text']))
# This one should not change
data = entries['u-boot'].data
self.assertEqual(U_BOOT_DATA, data)
data = entries['u-boot2'].data
self.assertEqual(expected2, data)
data = entries['text'].data
self.assertEqual(expected_text, data)
def testReplaceCmd(self):
"""Test replacing a file fron an image on the command line"""
self._DoReadFileRealDtb('143_replace_all.dts')
try:
tmpdir, updated_fname = self._SetupImageInTmpdir()
fname = os.path.join(tmpdir, 'update-u-boot.bin')
expected = b'x' * len(U_BOOT_DATA)
tools.WriteFile(fname, expected)
self._DoBinman('replace', '-i', updated_fname, 'u-boot', '-f', fname)
data = tools.ReadFile(updated_fname)
self.assertEqual(expected, data[:len(expected)])
map_fname = os.path.join(tmpdir, 'image-updated.map')
self.assertFalse(os.path.exists(map_fname))
finally:
shutil.rmtree(tmpdir)
def testReplaceCmdSome(self):
"""Test replacing some files fron an image on the command line"""
updated_fname, outdir, expected1, expected2, expected_text = (
self._SetupForReplace())
self._DoBinman('replace', '-i', updated_fname, '-I', outdir,
'u-boot2', 'text')
tools.PrepareOutputDir(None)
image = Image.FromFile(updated_fname)
image.LoadData()
entries = image.GetEntries()
# This one should not change
data = entries['u-boot'].data
self.assertEqual(U_BOOT_DATA, data)
data = entries['u-boot2'].data
self.assertEqual(expected2, data)
data = entries['text'].data
self.assertEqual(expected_text, data)
def testReplaceMissing(self):
"""Test replacing entries where the file is missing"""
updated_fname, outdir, expected1, expected2, expected_text = (
self._SetupForReplace())
# Remove one of the files, to generate a warning
u_boot_fname1 = os.path.join(outdir, 'u-boot')
os.remove(u_boot_fname1)
with test_util.capture_sys_output() as (stdout, stderr):
control.ReplaceEntries(updated_fname, None, outdir, [])
self.assertIn("Skipping entry '/u-boot' from missing file",
stdout.getvalue())
def testReplaceCmdMap(self):
"""Test replacing a file fron an image on the command line"""
self._DoReadFileRealDtb('143_replace_all.dts')
try:
tmpdir, updated_fname = self._SetupImageInTmpdir()
fname = os.path.join(self._indir, 'update-u-boot.bin')
expected = b'x' * len(U_BOOT_DATA)
tools.WriteFile(fname, expected)
self._DoBinman('replace', '-i', updated_fname, 'u-boot',
'-f', fname, '-m')
map_fname = os.path.join(tmpdir, 'image-updated.map')
self.assertTrue(os.path.exists(map_fname))
finally:
shutil.rmtree(tmpdir)
def testReplaceNoEntryPaths(self):
"""Test replacing an entry without an entry path"""
self._DoReadFileRealDtb('143_replace_all.dts')
image_fname = tools.GetOutputFilename('image.bin')
with self.assertRaises(ValueError) as e:
control.ReplaceEntries(image_fname, 'fname', None, [])
self.assertIn('Must specify an entry path to read with -f',
str(e.exception))
def testReplaceTooManyEntryPaths(self):
"""Test extracting some entries"""
self._DoReadFileRealDtb('143_replace_all.dts')
image_fname = tools.GetOutputFilename('image.bin')
with self.assertRaises(ValueError) as e:
control.ReplaceEntries(image_fname, 'fname', None, ['a', 'b'])
self.assertIn('Must specify exactly one entry path to write with -f',
str(e.exception))
if __name__ == "__main__":
unittest.main()
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