mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-17 16:53:06 +00:00
193d3dbd45
At present we show 'main section' as the top-level section name. It may be more helpful to show the actual image name. This is tricky because Image is a parent class of Entry_section, so there is no distinction between an image and a section. Update it to show the image name. Signed-off-by: Simon Glass <sjg@chromium.org>
418 lines
16 KiB
Python
418 lines
16 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
|
|
# Copyright (c) 2016 Google, Inc
|
|
# Written by Simon Glass <sjg@chromium.org>
|
|
#
|
|
# Class for an image, the output of binman
|
|
#
|
|
|
|
from collections import OrderedDict
|
|
import fnmatch
|
|
from operator import attrgetter
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
from binman.entry import Entry
|
|
from binman.etype import fdtmap
|
|
from binman.etype import image_header
|
|
from binman.etype import section
|
|
from dtoc import fdt
|
|
from dtoc import fdt_util
|
|
from patman import tools
|
|
from patman import tout
|
|
|
|
class Image(section.Entry_section):
|
|
"""A Image, representing an output from binman
|
|
|
|
An image is comprised of a collection of entries each containing binary
|
|
data. The image size must be large enough to hold all of this data.
|
|
|
|
This class implements the various operations needed for images.
|
|
|
|
Attributes:
|
|
filename: Output filename for image
|
|
image_node: Name of node containing the description for this image
|
|
fdtmap_dtb: Fdt object for the fdtmap when loading from a file
|
|
fdtmap_data: Contents of the fdtmap when loading from a file
|
|
allow_repack: True to add properties to allow the image to be safely
|
|
repacked later
|
|
test_section_timeout: Use a zero timeout for section multi-threading
|
|
(for testing)
|
|
symlink: Name of symlink to image
|
|
|
|
Args:
|
|
copy_to_orig: Copy offset/size to orig_offset/orig_size after reading
|
|
from the device tree
|
|
test: True if this is being called from a test of Images. This this case
|
|
there is no device tree defining the structure of the section, so
|
|
we create a section manually.
|
|
ignore_missing: Ignore any missing entry arguments (i.e. don't raise an
|
|
exception). This should be used if the Image is being loaded from
|
|
a file rather than generated. In that case we obviously don't need
|
|
the entry arguments since the contents already exists.
|
|
use_expanded: True if we are updating the FDT wth entry offsets, etc.
|
|
and should use the expanded versions of the U-Boot entries.
|
|
Any entry type that includes a devicetree must put it in a
|
|
separate entry so that it will be updated. For example. 'u-boot'
|
|
normally just picks up 'u-boot.bin' which includes the
|
|
devicetree, but this is not updateable, since it comes into
|
|
binman as one piece and binman doesn't know that it is actually
|
|
an executable followed by a devicetree. Of course it could be
|
|
taught this, but then when reading an image (e.g. 'binman ls')
|
|
it may need to be able to split the devicetree out of the image
|
|
in order to determine the location of things. Instead we choose
|
|
to ignore 'u-boot-bin' in this case, and build it ourselves in
|
|
binman with 'u-boot-dtb.bin' and 'u-boot.dtb'. See
|
|
Entry_u_boot_expanded and Entry_blob_phase for details.
|
|
missing_etype: Use a default entry type ('blob') if the requested one
|
|
does not exist in binman. This is useful if an image was created by
|
|
binman a newer version of binman but we want to list it in an older
|
|
version which does not support all the entry types.
|
|
generate: If true, generator nodes are processed. If false they are
|
|
ignored which is useful when an existing image is read back from a
|
|
file.
|
|
"""
|
|
def __init__(self, name, node, copy_to_orig=True, test=False,
|
|
ignore_missing=False, use_expanded=False, missing_etype=False,
|
|
generate=True):
|
|
super().__init__(None, 'section', node, test=test)
|
|
self.copy_to_orig = copy_to_orig
|
|
self.name = name
|
|
self.image_name = name
|
|
self._filename = '%s.bin' % self.image_name
|
|
self.fdtmap_dtb = None
|
|
self.fdtmap_data = None
|
|
self.allow_repack = False
|
|
self._ignore_missing = ignore_missing
|
|
self.missing_etype = missing_etype
|
|
self.use_expanded = use_expanded
|
|
self.test_section_timeout = False
|
|
self.bintools = {}
|
|
self.generate = generate
|
|
if not test:
|
|
self.ReadNode()
|
|
|
|
def ReadNode(self):
|
|
super().ReadNode()
|
|
self.allow_repack = fdt_util.GetBool(self._node, 'allow-repack')
|
|
self._symlink = fdt_util.GetString(self._node, 'symlink')
|
|
|
|
@classmethod
|
|
def FromFile(cls, fname):
|
|
"""Convert an image file into an Image for use in binman
|
|
|
|
Args:
|
|
fname: Filename of image file to read
|
|
|
|
Returns:
|
|
Image object on success
|
|
|
|
Raises:
|
|
ValueError if something goes wrong
|
|
"""
|
|
data = tools.read_file(fname)
|
|
size = len(data)
|
|
|
|
# First look for an image header
|
|
pos = image_header.LocateHeaderOffset(data)
|
|
if pos is None:
|
|
# Look for the FDT map
|
|
pos = fdtmap.LocateFdtmap(data)
|
|
if pos is None:
|
|
raise ValueError('Cannot find FDT map in image')
|
|
|
|
# We don't know the FDT size, so check its header first
|
|
probe_dtb = fdt.Fdt.FromData(
|
|
data[pos + fdtmap.FDTMAP_HDR_LEN:pos + 256])
|
|
dtb_size = probe_dtb.GetFdtObj().totalsize()
|
|
fdtmap_data = data[pos:pos + dtb_size + fdtmap.FDTMAP_HDR_LEN]
|
|
fdt_data = fdtmap_data[fdtmap.FDTMAP_HDR_LEN:]
|
|
out_fname = tools.get_output_filename('fdtmap.in.dtb')
|
|
tools.write_file(out_fname, fdt_data)
|
|
dtb = fdt.Fdt(out_fname)
|
|
dtb.Scan()
|
|
|
|
# Return an Image with the associated nodes
|
|
root = dtb.GetRoot()
|
|
image = Image('image', root, copy_to_orig=False, ignore_missing=True,
|
|
missing_etype=True, generate=False)
|
|
|
|
image.image_node = fdt_util.GetString(root, 'image-node', 'image')
|
|
image.fdtmap_dtb = dtb
|
|
image.fdtmap_data = fdtmap_data
|
|
image._data = data
|
|
image._filename = fname
|
|
image.image_name, _ = os.path.splitext(fname)
|
|
return image
|
|
|
|
def Raise(self, msg):
|
|
"""Convenience function to raise an error referencing an image"""
|
|
raise ValueError("Image '%s': %s" % (self._node.path, msg))
|
|
|
|
def PackEntries(self):
|
|
"""Pack all entries into the image"""
|
|
super().Pack(0)
|
|
|
|
def SetImagePos(self):
|
|
# This first section in the image so it starts at 0
|
|
super().SetImagePos(0)
|
|
|
|
def ProcessEntryContents(self):
|
|
"""Call the ProcessContents() method for each entry
|
|
|
|
This is intended to adjust the contents as needed by the entry type.
|
|
|
|
Returns:
|
|
True if the new data size is OK, False if expansion is needed
|
|
"""
|
|
return super().ProcessContents()
|
|
|
|
def WriteSymbols(self):
|
|
"""Write symbol values into binary files for access at run time"""
|
|
super().WriteSymbols(self)
|
|
|
|
def BuildImage(self):
|
|
"""Write the image to a file"""
|
|
fname = tools.get_output_filename(self._filename)
|
|
tout.info("Writing image to '%s'" % fname)
|
|
with open(fname, 'wb') as fd:
|
|
data = self.GetPaddedData()
|
|
fd.write(data)
|
|
tout.info("Wrote %#x bytes" % len(data))
|
|
# Create symlink to file if symlink given
|
|
if self._symlink is not None:
|
|
sname = tools.get_output_filename(self._symlink)
|
|
os.symlink(fname, sname)
|
|
|
|
def WriteMap(self):
|
|
"""Write a map of the image to a .map file
|
|
|
|
Returns:
|
|
Filename of map file written
|
|
"""
|
|
filename = '%s.map' % self.image_name
|
|
fname = tools.get_output_filename(filename)
|
|
with open(fname, 'w') as fd:
|
|
print('%8s %8s %8s %s' % ('ImagePos', 'Offset', 'Size', 'Name'),
|
|
file=fd)
|
|
super().WriteMap(fd, 0)
|
|
return fname
|
|
|
|
def BuildEntryList(self):
|
|
"""List the files in an image
|
|
|
|
Returns:
|
|
List of entry.EntryInfo objects describing all entries in the image
|
|
"""
|
|
entries = []
|
|
self.ListEntries(entries, 0)
|
|
return entries
|
|
|
|
def FindEntryPath(self, entry_path):
|
|
"""Find an entry at a given path in the image
|
|
|
|
Args:
|
|
entry_path: Path to entry (e.g. /ro-section/u-boot')
|
|
|
|
Returns:
|
|
Entry object corresponding to that past
|
|
|
|
Raises:
|
|
ValueError if no entry found
|
|
"""
|
|
parts = entry_path.split('/')
|
|
entries = self.GetEntries()
|
|
parent = '/'
|
|
for part in parts:
|
|
entry = entries.get(part)
|
|
if not entry:
|
|
raise ValueError("Entry '%s' not found in '%s'" %
|
|
(part, parent))
|
|
parent = entry.GetPath()
|
|
entries = entry.GetEntries()
|
|
return entry
|
|
|
|
def ReadData(self, decomp=True, alt_format=None):
|
|
tout.debug("Image '%s' ReadData(), size=%#x" %
|
|
(self.GetPath(), len(self._data)))
|
|
return self._data
|
|
|
|
def GetListEntries(self, entry_paths):
|
|
"""List the entries in an image
|
|
|
|
This decodes the supplied image and returns a list of entries from that
|
|
image, preceded by a header.
|
|
|
|
Args:
|
|
entry_paths: List of paths to match (each can have wildcards). Only
|
|
entries whose names match one of these paths will be printed
|
|
|
|
Returns:
|
|
String error message if something went wrong, otherwise
|
|
3-Tuple:
|
|
List of EntryInfo objects
|
|
List of lines, each
|
|
List of text columns, each a string
|
|
List of widths of each column
|
|
"""
|
|
def _EntryToStrings(entry):
|
|
"""Convert an entry to a list of strings, one for each column
|
|
|
|
Args:
|
|
entry: EntryInfo object containing information to output
|
|
|
|
Returns:
|
|
List of strings, one for each field in entry
|
|
"""
|
|
def _AppendHex(val):
|
|
"""Append a hex value, or an empty string if val is None
|
|
|
|
Args:
|
|
val: Integer value, or None if none
|
|
"""
|
|
args.append('' if val is None else '>%x' % val)
|
|
|
|
args = [' ' * entry.indent + entry.name]
|
|
_AppendHex(entry.image_pos)
|
|
_AppendHex(entry.size)
|
|
args.append(entry.etype)
|
|
_AppendHex(entry.offset)
|
|
_AppendHex(entry.uncomp_size)
|
|
return args
|
|
|
|
def _DoLine(lines, line):
|
|
"""Add a line to the output list
|
|
|
|
This adds a line (a list of columns) to the output list. It also updates
|
|
the widths[] array with the maximum width of each column
|
|
|
|
Args:
|
|
lines: List of lines to add to
|
|
line: List of strings, one for each column
|
|
"""
|
|
for i, item in enumerate(line):
|
|
widths[i] = max(widths[i], len(item))
|
|
lines.append(line)
|
|
|
|
def _NameInPaths(fname, entry_paths):
|
|
"""Check if a filename is in a list of wildcarded paths
|
|
|
|
Args:
|
|
fname: Filename to check
|
|
entry_paths: List of wildcarded paths (e.g. ['*dtb*', 'u-boot*',
|
|
'section/u-boot'])
|
|
|
|
Returns:
|
|
True if any wildcard matches the filename (using Unix filename
|
|
pattern matching, not regular expressions)
|
|
False if not
|
|
"""
|
|
for path in entry_paths:
|
|
if fnmatch.fnmatch(fname, path):
|
|
return True
|
|
return False
|
|
|
|
entries = self.BuildEntryList()
|
|
|
|
# This is our list of lines. Each item in the list is a list of strings, one
|
|
# for each column
|
|
lines = []
|
|
HEADER = ['Name', 'Image-pos', 'Size', 'Entry-type', 'Offset',
|
|
'Uncomp-size']
|
|
num_columns = len(HEADER)
|
|
|
|
# This records the width of each column, calculated as the maximum width of
|
|
# all the strings in that column
|
|
widths = [0] * num_columns
|
|
_DoLine(lines, HEADER)
|
|
|
|
# We won't print anything unless it has at least this indent. So at the
|
|
# start we will print nothing, unless a path matches (or there are no
|
|
# entry paths)
|
|
MAX_INDENT = 100
|
|
min_indent = MAX_INDENT
|
|
path_stack = []
|
|
path = ''
|
|
indent = 0
|
|
selected_entries = []
|
|
for entry in entries:
|
|
if entry.indent > indent:
|
|
path_stack.append(path)
|
|
elif entry.indent < indent:
|
|
path_stack.pop()
|
|
if path_stack:
|
|
path = path_stack[-1] + '/' + entry.name
|
|
indent = entry.indent
|
|
|
|
# If there are entry paths to match and we are not looking at a
|
|
# sub-entry of a previously matched entry, we need to check the path
|
|
if entry_paths and indent <= min_indent:
|
|
if _NameInPaths(path[1:], entry_paths):
|
|
# Print this entry and all sub-entries (=higher indent)
|
|
min_indent = indent
|
|
else:
|
|
# Don't print this entry, nor any following entries until we get
|
|
# a path match
|
|
min_indent = MAX_INDENT
|
|
continue
|
|
_DoLine(lines, _EntryToStrings(entry))
|
|
selected_entries.append(entry)
|
|
return selected_entries, lines, widths
|
|
|
|
def LookupImageSymbol(self, sym_name, optional, msg, base_addr):
|
|
"""Look up a symbol in an ELF file
|
|
|
|
Looks up a symbol in an ELF file. Only entry types which come from an
|
|
ELF image can be used by this function.
|
|
|
|
This searches through this image including all of its subsections.
|
|
|
|
At present the only entry properties supported are:
|
|
offset
|
|
image_pos - 'base_addr' is added if this is not an end-at-4gb image
|
|
size
|
|
|
|
Args:
|
|
sym_name: Symbol name in the ELF file to look up in the format
|
|
_binman_<entry>_prop_<property> where <entry> is the name of
|
|
the entry and <property> is the property to find (e.g.
|
|
_binman_u_boot_prop_offset). As a special case, you can append
|
|
_any to <entry> to have it search for any matching entry. E.g.
|
|
_binman_u_boot_any_prop_offset will match entries called u-boot,
|
|
u-boot-img and u-boot-nodtb)
|
|
optional: True if the symbol is optional. If False this function
|
|
will raise if the symbol is not found
|
|
msg: Message to display if an error occurs
|
|
base_addr: Base address of image. This is added to the returned
|
|
image_pos in most cases so that the returned position indicates
|
|
where the targeted entry/binary has actually been loaded. But
|
|
if end-at-4gb is used, this is not done, since the binary is
|
|
already assumed to be linked to the ROM position and using
|
|
execute-in-place (XIP).
|
|
|
|
Returns:
|
|
Value that should be assigned to that symbol, or None if it was
|
|
optional and not found
|
|
|
|
Raises:
|
|
ValueError if the symbol is invalid or not found, or references a
|
|
property which is not supported
|
|
"""
|
|
entries = OrderedDict()
|
|
entries_by_name = {}
|
|
self._CollectEntries(entries, entries_by_name, self)
|
|
return self.LookupSymbol(sym_name, optional, msg, base_addr,
|
|
entries_by_name)
|
|
|
|
def CollectBintools(self):
|
|
"""Collect all the bintools used by this image
|
|
|
|
Returns:
|
|
Dict of bintools:
|
|
key: name of tool
|
|
value: Bintool object
|
|
"""
|
|
bintools = {}
|
|
super().AddBintools(bintools)
|
|
self.bintools = bintools
|
|
return bintools
|