Blame view
tools/binman/control.py
3.68 KB
d41ce506b
Initial Release, ...
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 |
# Copyright (c) 2016 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
# Creates binary images from input files controlled by a description
#
from collections import OrderedDict
import os
import sys
import tools
import command
import elf
import fdt
import fdt_util
from image import Image
import tout
# List of images we plan to create
# Make this global so that it can be referenced from tests
images = OrderedDict()
def _ReadImageDesc(binman_node):
"""Read the image descriptions from the /binman node
This normally produces a single Image object called 'image'. But if
multiple images are present, they will all be returned.
Args:
binman_node: Node object of the /binman node
Returns:
OrderedDict of Image objects, each of which describes an image
"""
images = OrderedDict()
if 'multiple-images' in binman_node.props:
for node in binman_node.subnodes:
images[node.name] = Image(node.name, node)
else:
images['image'] = Image('image', binman_node)
return images
def _FindBinmanNode(dtb):
"""Find the 'binman' node in the device tree
Args:
dtb: Fdt object to scan
Returns:
Node object of /binman node, or None if not found
"""
for node in dtb.GetRoot().subnodes:
if node.name == 'binman':
return node
return None
def Binman(options, args):
"""The main control code for binman
This assumes that help and test options have already been dealt with. It
deals with the core task of building images.
Args:
options: Command line options object
args: Command line arguments (list of strings)
"""
global images
if options.full_help:
pager = os.getenv('PAGER')
if not pager:
pager = 'more'
fname = os.path.join(os.path.dirname(os.path.realpath(sys.argv[0])),
'README')
command.Run(pager, fname)
return 0
# Try to figure out which device tree contains our image description
if options.dt:
dtb_fname = options.dt
else:
board = options.board
if not board:
raise ValueError('Must provide a board to process (use -b <board>)')
board_pathname = os.path.join(options.build_dir, board)
dtb_fname = os.path.join(board_pathname, 'u-boot.dtb')
if not options.indir:
options.indir = ['.']
options.indir.append(board_pathname)
try:
tout.Init(options.verbosity)
elf.debug = options.debug
try:
tools.SetInputDirs(options.indir)
tools.PrepareOutputDir(options.outdir, options.preserve)
dtb = fdt.FdtScan(dtb_fname)
node = _FindBinmanNode(dtb)
if not node:
raise ValueError("Device tree '%s' does not have a 'binman' "
"node" % dtb_fname)
images = _ReadImageDesc(node)
for image in images.values():
# Perform all steps for this image, including checking and
# writing it. This means that errors found with a later
# image will be reported after earlier images are already
# completed and written, but that does not seem important.
image.GetEntryContents()
image.GetEntryPositions()
image.PackEntries()
image.CheckSize()
image.CheckEntries()
image.ProcessEntryContents()
image.WriteSymbols()
image.BuildImage()
finally:
tools.FinaliseOutputDir()
finally:
tout.Uninit()
return 0
|