/usr/bin/skales-mkbootimg is in skales 0.20160202-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | #! /usr/bin/env python
#
# Copyright (c) 2013, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Drop in replacement for android's mkbootimg plus some more additions
#
from struct import pack
import os
from optparse import OptionParser
def write_padding(f, pagesize):
count = pagesize - (f.tell() % pagesize)
# Write padding as long as we aren't already aligned to a page
if count != pagesize:
output.write("".join(['\x00' for x in xrange(count)]))
if __name__ == "__main__":
usage = ("""%prog [options]""")
parser = OptionParser(usage=usage)
# Standard options
parser.add_option("--kernel", dest="kernel", metavar="FILE",
help="Input kernel image")
parser.add_option("--ramdisk", dest="ramdisk", metavar="FILE",
help="Input ramdisk image")
parser.add_option("--base", type="int", dest="base",
help="Start address of kernel image")
parser.add_option("--output", dest="output", metavar="FILE",
help="Write output to FILE")
parser.add_option("--cmdline", dest="cmdline",
help="Kernel command line")
parser.add_option("--pagesize", type="int", dest="pagesize",
default=2048,
help="NAND pagesize [default: %default]")
# New options
parser.add_option("--ramdisk_base", type="int", dest="ramdisk_base",
default=-1, help="Start address of ramdisk image")
parser.add_option("--dt", dest="devicetree", metavar="FILE",
help="Input device tree image")
(options, args) = parser.parse_args()
if options.kernel is None:
parser.error("Must specify --kernel")
if options.ramdisk is None:
parser.error("Must specify --ramdisk")
if options.output is None:
parser.error("Must specify --output")
if options.base is None:
parser.error("Must specify --base")
if options.cmdline is None:
parser.error("Must specify --cmdline")
try:
kernel = open(options.kernel, 'rb')
except IOError:
exit("Can't open %s" % options.kernel)
try:
ramdisk = open(options.ramdisk, 'rb')
except IOError:
exit("Can't open %s" % options.ramdisk)
try:
output = open(options.output, 'wb')
except IOError:
exit("Can't open %s" % options.output)
if options.devicetree:
try:
devicetree = open(options.devicetree, 'rb')
except IOError:
exit("Can't open %s" % options.devicetree)
pagesize = options.pagesize
tags = options.base + 0x100
ramdisk_base = options.ramdisk_base if options.ramdisk_base != -1 else options.base + 0x2000000
kernel_size = os.fstat(kernel.fileno()).st_size
dtb_size = 0
if options.devicetree:
of_dt_header = 0xd00dfeed
magic = devicetree.read(4)
devicetree.seek(0)
if int(magic.encode('hex'),16) == of_dt_header:
append_dtb = True
kernel_size += os.fstat(devicetree.fileno()).st_size
elif magic == 'QCDT':
append_dtb = False
dtb_size = os.fstat(devicetree.fileno()).st_size
else:
exit("dtb: %s is of unknown format" % options.devicetree)
hdr_format = "<8sIIIIIIII2I16s512s8I"
output.write(pack(hdr_format,
"ANDROID!",
kernel_size,
options.base + 0x8000,
os.fstat(ramdisk.fileno()).st_size,
ramdisk_base,
0, 0,
tags,
options.pagesize,
dtb_size, 0,
"",
options.cmdline,
123456, 123456, 123456, 123456, 123456, 123456,
0, 0))
write_padding(output, pagesize)
output.write(kernel.read())
if options.devicetree and append_dtb:
output.write(devicetree.read())
write_padding(output, pagesize)
output.write(ramdisk.read())
write_padding(output, pagesize)
if options.devicetree and not append_dtb:
output.write(devicetree.read())
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