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u-boot/tools/binman/ftest.py
Simon Glass 1979063264 binman: Support accessing binman tables at run time 
Binman construct images consisting of multiple binary files. These files
sometimes need to know (at run timme) where their peers are located. For
example, SPL may want to know where U-Boot is located in the image, so
that it can jump to U-Boot correctly on boot.

In general the positions where the binaries end up after binman has
finished packing them cannot be known at compile time. One reason for
this is that binman does not know the size of the binaries until
everything is compiled, linked and converted to binaries with objcopy.

To make this work, we add a feature to binman which checks each binary
for symbol names starting with '_binman'. These are then decoded to figure
out which entry and property they refer to. Then binman writes the value
of this symbol into the appropriate binary. With this, the symbol will
have the correct value at run time.

Macros are used to make this easier to use. As an example, this declares
a symbol that will access the 'u-boot-spl' entry to find the 'pos' value
(i.e. the position of SPL in the image):

   binman_sym_declare(unsigned long, u_boot_spl, pos);

This converts to a symbol called '_binman_u_boot_spl_prop_pos' in any
binary that includes it. Binman then updates the value in that binary,
ensuring that it can be accessed at runtime with:

   ulong u_boot_pos = binman_sym(ulong, u_boot_spl, pos);

This assigns the variable u_boot_pos to the position of SPL in the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-12 19:53:45 -07:00

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#
# Copyright (c) 2016 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
# To run a single test, change to this directory, and:
#
# python -m unittest func_test.TestFunctional.testHelp
from optparse import OptionParser
import os
import shutil
import struct
import sys
import tempfile
import unittest
import binman
import cmdline
import command
import control
import elf
import fdt
import fdt_util
import tools
import tout
# Contents of test files, corresponding to different entry types
U_BOOT_DATA = '1234'
U_BOOT_IMG_DATA = 'img'
U_BOOT_SPL_DATA = '56780123456789abcde'
BLOB_DATA = '89'
ME_DATA = '0abcd'
VGA_DATA = 'vga'
U_BOOT_DTB_DATA = 'udtb'
U_BOOT_SPL_DTB_DATA = 'spldtb'
X86_START16_DATA = 'start16'
X86_START16_SPL_DATA = 'start16spl'
U_BOOT_NODTB_DATA = 'nodtb with microcode pointer somewhere in here'
U_BOOT_SPL_NODTB_DATA = 'splnodtb with microcode pointer somewhere in here'
FSP_DATA = 'fsp'
CMC_DATA = 'cmc'
VBT_DATA = 'vbt'
MRC_DATA = 'mrc'
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('blobfile', BLOB_DATA)
TestFunctional._MakeInputFile('me.bin', ME_DATA)
TestFunctional._MakeInputFile('vga.bin', VGA_DATA)
TestFunctional._MakeInputFile('u-boot.dtb', U_BOOT_DTB_DATA)
TestFunctional._MakeInputFile('spl/u-boot-spl.dtb', U_BOOT_SPL_DTB_DATA)
TestFunctional._MakeInputFile('u-boot-x86-16bit.bin', X86_START16_DATA)
TestFunctional._MakeInputFile('spl/u-boot-x86-16bit-spl.bin',
X86_START16_SPL_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('fsp.bin', FSP_DATA)
TestFunctional._MakeInputFile('cmc.bin', CMC_DATA)
TestFunctional._MakeInputFile('vbt.bin', VBT_DATA)
TestFunctional._MakeInputFile('mrc.bin', MRC_DATA)
self._output_setup = False
# ELF file with a '_dt_ucode_base_size' symbol
with open(self.TestFile('u_boot_ucode_ptr')) as fd:
TestFunctional._MakeInputFile('u-boot', fd.read())
# Intel flash descriptor file
with open(self.TestFile('descriptor.bin')) as fd:
TestFunctional._MakeInputFile('descriptor.bin', fd.read())
@classmethod
def tearDownClass(self):
"""Remove the temporary input directory and its contents"""
if self._indir:
shutil.rmtree(self._indir)
self._indir = None
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"""
tools._FinaliseForTest()
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, *args):
"""Run binman using directly (in the same process)
Args:
Arguments to pass, as a list of strings
Returns:
Return value (0 for success)
"""
args = list(args)
if '-D' in sys.argv:
args = args + ['-D']
(options, args) = cmdline.ParseArgs(args)
options.pager = 'binman-invalid-pager'
options.build_dir = self._indir
# For testing, you can force an increase in verbosity here
# options.verbosity = tout.DEBUG
return control.Binman(options, args)
def _DoTestFile(self, fname, debug=False):
"""Run binman with a given test file
Args:
fname: Device tree source filename to use (e.g. 05_simple.dts)
"""
args = ['-p', '-I', self._indir, '-d', self.TestFile(fname)]
if debug:
args.append('-D')
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
"""
if not self._output_setup:
tools.PrepareOutputDir(self._indir, True)
self._output_setup = True
dtb = fdt_util.EnsureCompiled(self.TestFile(fname))
with open(dtb) as fd:
data = fd.read()
TestFunctional._MakeInputFile(outfile, data)
return data
def _DoReadFileDtb(self, fname, use_real_dtb=False):
"""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. 05_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:
Tuple:
Resulting image contents
Device tree contents
"""
dtb_data = None
# Use the compiled test file as the u-boot-dtb input
if use_real_dtb:
dtb_data = self._SetupDtb(fname)
try:
retcode = self._DoTestFile(fname)
self.assertEqual(0, retcode)
# Find the (only) image, read it and return its contents
image = control.images['image']
fname = tools.GetOutputFilename('image.bin')
self.assertTrue(os.path.exists(fname))
with open(fname) as fd:
return fd.read(), dtb_data
finally:
# Put the test file back
if use_real_dtb:
TestFunctional._MakeInputFile('u-boot.dtb', U_BOOT_DTB_DATA)
def _DoReadFile(self, fname, use_real_dtb=False):
"""Helper function which discards the device-tree binary"""
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: Filenaem 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 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: '%' 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
"""
pos = 0
for entry in entries.values():
self.assertEqual(pos, entry.pos)
pos += 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 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')
self.assertEqual(len(result.stdout), 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('05_simple.dts', 'sandbox/u-boot.dtb')
TestFunctional._MakeInputFile('sandbox/u-boot.bin', U_BOOT_DATA)
result = self._DoBinman('-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()
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('-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('-d', self.TestFile('01_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('-d', self.TestFile('02_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('-d', self.TestFile('03_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('-d',
self.TestFile('04_invalid_entry.dts'))
#print e.exception
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('05_simple.dts')
self.assertEqual(U_BOOT_DATA, data)
def testSimpleDebug(self):
"""Test a simple binman run with debugging enabled"""
data = self._DoTestFile('05_simple.dts', debug=True)
def testDual(self):
"""Test that we can handle creating two images
This also tests image padding.
"""
retcode = self._DoTestFile('06_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) 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) as fd:
data = fd.read()
self.assertEqual(U_BOOT_DATA, data[3:7])
self.assertEqual(chr(0) * 3, data[:3])
self.assertEqual(chr(0) * 5, data[7:])
def testBadAlign(self):
"""Test that an invalid alignment value is detected"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('07_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('08_pack.dts')
self.assertEqual(0, retcode)
self.assertIn('image', control.images)
image = control.images['image']
entries = image._entries
self.assertEqual(5, len(entries))
# First u-boot
self.assertIn('u-boot', entries)
entry = entries['u-boot']
self.assertEqual(0, entry.pos)
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.pos)
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.pos)
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.pos)
self.assertEqual(len(U_BOOT_DATA), entry.size)
# Fifth u-boot, placed at a fixed position
self.assertIn('u-boot-fixed', entries)
entry = entries['u-boot-fixed']
self.assertEqual(61, entry.pos)
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('09_pack_extra.dts')
self.assertEqual(0, retcode)
self.assertIn('image', control.images)
image = control.images['image']
entries = image._entries
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.pos)
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.pos)
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.pos)
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.pos)
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.pos)
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('10_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('11_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 position that does not match its alignment"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('12_pack_inv_align.dts')
self.assertIn("Node '/binman/u-boot': Position 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('13_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('14_pack_overlap.dts')
self.assertIn("Node '/binman/u-boot-align': Position 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('15_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('16_pack_image_overflow.dts')
self.assertIn("Image '/binman': contents size 0x4 (4) exceeds image "
"size 0x3 (3)", str(e.exception))
def testPackImageSize(self):
"""Test that the image size can be set"""
retcode = self._DoTestFile('17_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('18_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('19_pack_inv_image_align.dts')
self.assertIn("Image '/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('20_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"""
with open(self.TestFile('bss_data')) as fd:
TestFunctional._MakeInputFile('spl/u-boot-spl', fd.read())
data = self._DoReadFile('21_image_pad.dts')
self.assertEqual(U_BOOT_SPL_DATA + (chr(0xff) * 1) + U_BOOT_DATA, data)
def testImageName(self):
"""Test that image files can be named"""
retcode = self._DoTestFile('22_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('23_blob.dts')
self.assertEqual(BLOB_DATA, data)
def testPackSorted(self):
"""Test that entries can be sorted"""
data = self._DoReadFile('24_sorted.dts')
self.assertEqual(chr(0) * 1 + U_BOOT_SPL_DATA + chr(0) * 2 +
U_BOOT_DATA, data)
def testPackZeroPosition(self):
"""Test that an entry at position 0 is not given a new position"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('25_pack_zero_size.dts')
self.assertIn("Node '/binman/u-boot-spl': Position 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('26_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('27_pack_4gb_no_size.dts')
self.assertIn("Image '/binman': Image size must be provided when "
"using end-at-4gb", str(e.exception))
def testPackX86RomOutside(self):
"""Test that the end-at-4gb property checks for position boundaries"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('28_pack_4gb_outside.dts')
self.assertIn("Node '/binman/u-boot': Position 0x0 (0) is outside "
"the image starting at 0xffffffe0 (4294967264)",
str(e.exception))
def testPackX86Rom(self):
"""Test that a basic x86 ROM can be created"""
data = self._DoReadFile('29_x86-rom.dts')
self.assertEqual(U_BOOT_DATA + chr(0) * 7 + U_BOOT_SPL_DATA +
chr(0) * 2, data)
def testPackX86RomMeNoDesc(self):
"""Test that an invalid Intel descriptor entry is detected"""
TestFunctional._MakeInputFile('descriptor.bin', '')
with self.assertRaises(ValueError) as e:
self._DoTestFile('31_x86-rom-me.dts')
self.assertIn("Node '/binman/intel-descriptor': Cannot find FD "
"signature", str(e.exception))
def testPackX86RomBadDesc(self):
"""Test that the Intel requires a descriptor entry"""
with self.assertRaises(ValueError) as e:
self._DoTestFile('30_x86-rom-me-no-desc.dts')
self.assertIn("Node '/binman/intel-me': No position set with "
"pos-unset: should another entry provide this correct "
"position?", str(e.exception))
def testPackX86RomMe(self):
"""Test that an x86 ROM with an ME region can be created"""
data = self._DoReadFile('31_x86-rom-me.dts')
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('32_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('33_x86-start16.dts')
self.assertEqual(X86_START16_DATA, data[:len(X86_START16_DATA)])
def _RunMicrocodeTest(self, dts_fname, nodtb_data):
data = self._DoReadFile(dts_fname, True)
# Now check the device tree has no microcode
second = data[len(nodtb_data):]
fname = tools.GetOutputFilename('test.dtb')
with open(fname, 'wb') as fd:
fd.write(second)
dtb = fdt.FdtScan(fname)
ucode = dtb.GetNode('/microcode')
self.assertTrue(ucode)
for node in ucode.subnodes:
self.assertFalse(node.props.get('data'))
fdt_len = self.GetFdtLen(second)
third = second[fdt_len:]
# 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, third[:len(ucode_data)])
ucode_pos = len(nodtb_data) + fdt_len
# Check that the microcode pointer was inserted. It should match the
# expected position and size
pos_and_size = struct.pack('<2L', 0xfffffe00 + ucode_pos,
len(ucode_data))
first = data[:len(nodtb_data)]
return first, 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('34_x86_ucode.dts',
U_BOOT_NODTB_DATA)
self.assertEqual('nodtb with microcode' + pos_and_size +
' 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('35_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 position and size
pos_and_size = struct.pack('<2L', 0xfffffe00 + ucode_pos,
len(ucode_data))
first = data[:len(U_BOOT_NODTB_DATA)]
self.assertEqual('nodtb with microcode' + pos_and_size +
' 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('36_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('37_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('38_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('39_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')) 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')) 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('40_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 "
"image 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')) as fd:
TestFunctional._MakeInputFile('u-boot', fd.read())
data, dtb = self._DoReadFileDtb('44_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(chr(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('41_unknown_pos_size.dts', True)
self.assertIn("Image '/binman': Unable to set pos/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('42_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('43_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('46_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
with open(self.TestFile('bss_data')) as fd:
TestFunctional._MakeInputFile('spl/u-boot-spl', fd.read())
data = self._DoReadFile('47_spl_bss_pad.dts')
self.assertEqual(U_BOOT_SPL_DATA + (chr(0) * 10) + U_BOOT_DATA, data)
with open(self.TestFile('u_boot_ucode_ptr')) as fd:
TestFunctional._MakeInputFile('spl/u-boot-spl', fd.read())
with self.assertRaises(ValueError) as e:
data = self._DoReadFile('47_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 region can be created"""
data = self._DoReadFile('48_x86-start16-spl.dts')
self.assertEqual(X86_START16_SPL_DATA, data[:len(X86_START16_SPL_DATA)])
def testPackUbootSplMicrocode(self):
"""Test that x86 microcode can be handled correctly in SPL
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
"""
# ELF file with a '_dt_ucode_base_size' symbol
with open(self.TestFile('u_boot_ucode_ptr')) as fd:
TestFunctional._MakeInputFile('spl/u-boot-spl', fd.read())
first, pos_and_size = self._RunMicrocodeTest('49_x86_ucode_spl.dts',
U_BOOT_SPL_NODTB_DATA)
self.assertEqual('splnodtb with microc' + pos_and_size +
'ter somewhere in here', first)
def testPackMrc(self):
"""Test that an image with an MRC binary can be created"""
data = self._DoReadFile('50_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('51_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('52_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_pos'].address, addr)
with open(self.TestFile('u_boot_binman_syms')) as fd:
TestFunctional._MakeInputFile('spl/u-boot-spl', fd.read())
data = self._DoReadFile('53_symbols.dts')
sym_values = struct.pack('<LQL', 0x24 + 0, 0x24 + 24, 0x24 + 20)
expected = (sym_values + U_BOOT_SPL_DATA[16:] + chr(0xff) +
U_BOOT_DATA +
sym_values + U_BOOT_SPL_DATA[16:])
self.assertEqual(expected, data)
if __name__ == "__main__":
unittest.main()
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