def test_cbfs_stage(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
cbw = CbfsWriter(size)
cbw.add_file_stage('u-boot', tools.ReadFile(elf_fname))
data = cbw.get_data()
cbfs = self._check_hdr(data, size)
load = 0xfef20000
entry = load + 2
cfile = self._check_uboot(cbfs,
cbfs_util.TYPE_STAGE,
offset=0x28,
data=U_BOOT_DATA + U_BOOT_DTB_DATA)
self.assertEqual(entry, cfile.entry)
self.assertEqual(load, cfile.load)
self.assertEqual(
len(U_BOOT_DATA) + len(U_BOOT_DTB_DATA), cfile.data_len)
# Compare against what cbfstool creates
if self.have_cbfstool:
cbfs_fname = os.path.join(self._indir, 'test.cbfs')
self.cbfstool.create_new(cbfs_fname, size)
self.cbfstool.add_stage(cbfs_fname, 'u-boot', elf_fname)
self._compare_expected_cbfs(data, cbfs_fname)
def testMakeElf(self):
"""Test for the MakeElf function"""
outdir = tempfile.mkdtemp(prefix='elf.')
expected_text = b'1234'
expected_data = b'wxyz'
elf_fname = os.path.join(outdir, 'elf')
bin_fname = os.path.join(outdir, 'bin')
# Make an Elf file and then convert it to a fkat binary file. This
# should produce the original data.
elf.MakeElf(elf_fname, expected_text, expected_data)
stdout = command.Output('objcopy', '-O', 'binary', elf_fname,
bin_fname)
with open(bin_fname, 'rb') as fd:
data = fd.read()
self.assertEqual(expected_text + expected_data, data)
shutil.rmtree(outdir)
def testDecodeElf(self):
"""Test for the MakeElf function"""
if not elf.ELF_TOOLS:
self.skipTest('Python elftools not available')
outdir = tempfile.mkdtemp(prefix='elf.')
expected_text = b'1234'
expected_data = b'wxyz'
elf_fname = os.path.join(outdir, 'elf')
elf.MakeElf(elf_fname, expected_text, expected_data)
data = tools.ReadFile(elf_fname)
load = 0xfef20000
entry = load + 2
expected = expected_text + expected_data
self.assertEqual(elf.ElfInfo(expected, load, entry, len(expected)),
elf.DecodeElf(data, 0))
self.assertEqual(
elf.ElfInfo(b'\0\0' + expected[2:], load, entry, len(expected)),
elf.DecodeElf(data, load + 2))
shutil.rmtree(outdir)
