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system76-coreboot/util/ipqheader/createxbl.py
Angel Pons 7ec15c82f4 util: Fix shebang for python2 scripts 
Python 3 is the default Python interpreter on most modern systems.
Python 2 scripts must specify they should be run with Python 2 in their
shebang. Solves issue raised in CB:28953.

Change-Id: I9ace4afd668539c05e7ace30e255af50c7a069c2
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/29666
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-11-18 09:12:22 +00:00

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#!/usr/bin/env python2
#============================================================================
#
#/** @file createxbl.py
#
# GENERAL DESCRIPTION
# Concatentates XBL segments into one ELF image
#
# Copyright (c) 2016, 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.
#
#**/
#
#----------------------------------------------------------------------------
#
# EDIT HISTORY FOR FILE
#
# This section contains comments describing changes made to the module.
# Notice that changes are listed in reverse chronological order.
#
# when who what, where, why
# -------- --- ------------------------------------------------------
# 09/04/15 et Added -x and -d to embed xbl_sec ELF
# 02/11/15 ck Fixed missing elf type check in ZI OOB feature
# 11/04/14 ck Updated calls to mbn_tools functions
# 10/22/14 ck Added -z option to remove out of bounds ZI segments when converting from 64 to 32
# 10/10/14 ck Added -c option and logic to enable elf type swapping
# 09/12/14 ck Added single file logic
# 08/29/14 ck Added no_hash option
# 08/29/14 ck Refactored to use proper python arguments and cleaned code
# 06/16/14 niting xbl.mbn to xbl.elf
# 05/28/14 niting Initial revision
#
#============================================================================
from optparse import OptionParser
import os
import sys
import shutil
import mbn_tools
PAGE_SIZE = 4096
SEGMENT_ALIGN = 16
ELF32_HDR_SIZE = 52
ELF32_PHDR_SIZE = 32
ELF64_HDR_SIZE = 64
ELF64_PHDR_SIZE = 56
##############################################################################
# main
##############################################################################
def main():
parser = OptionParser(usage='usage: %prog [options] arguments')
parser.add_option("-f", "--first_filepath",
action="store", type="string", dest="elf_inp_file1",
help="First ELF file to merge.")
parser.add_option("-s", "--second_filepath",
action="store", type="string", dest="elf_inp_file2",
help="Second ELF file to merge.")
parser.add_option("-x", "--xbl_sec_filepath",
action="store", type="string", dest="elf_inp_xbl_sec",
help="Second ELF file to merge.")
parser.add_option("-o", "--output_filepath",
action="store", type="string", dest="binary_out",
help="Merged filename and path.")
parser.add_option("-a", "--first_elf_arch",
action="store", type="string", dest="elf_1_arch",
help="First (and output) ELF file architecture. '32' or '64'")
parser.add_option("-b", "--second_elf_arch",
action="store", type="string", dest="elf_2_arch",
help="Second ELF file architecture. '32' or '64'")
parser.add_option("-d", "--xbl_sec_elf_arch",
action="store", type="string", dest="elf_xbl_sec_arch",
help="xbl_sec file architecture. '32' or '64'")
parser.add_option("-c", "--output_elf_arch",
action="store", type="string", dest="elf_out_arch",
help="Output ELF file architecture. '32' or '64'" + \
" If not given defaults to first file arch.")
parser.add_option("-n", "--no_hash",
action="store_true", dest="hash_image",
help="Disables hashing of image after merging.")
parser.add_option("-z", "--zi_out_of_bounds",
action="store_true", dest="zi_oob",
help="Removes ZI segments that have addresses greater" + \
" than 32 bits when converting from a 64 to 32 bit ELF")
(options, args) = parser.parse_args()
if not options.elf_inp_file1:
parser.error('First ELF filename not given')
if not options.binary_out:
parser.error('Output filename not given')
if not options.elf_1_arch:
parser.error('First ELF architecture not given')
if (not options.elf_1_arch == '64') and (not options.elf_1_arch == '32'):
parser.error('Invalid First ELF architecture given')
# Only evaluate elf_2_arch if two files are given for merging
if options.elf_inp_file2:
if (not options.elf_2_arch == '64') and (not options.elf_2_arch == '32'):
parser.error('Invalid Second ELF architecture given')
# Only evaluate elf_xbl_sec_arch if file is given
if options.elf_inp_xbl_sec:
if (not options.elf_xbl_sec_arch == '64') and (not options.elf_xbl_sec_arch == '32'):
parser.error('Invalid xbl_sec ELF architecture given')
# If output file architecture is given ensure it is either '32' or '64'
if options.elf_out_arch:
if (not options.elf_out_arch == '64') and (not options.elf_out_arch == '32'):
parser.error('Invalid Output ELF architecture given')
gen_dict = {}
elf_inp_file1 = options.elf_inp_file1
# It is valid for only one file to be "merged". This essentially just
# strips off the section names. If second file name is not given then
# set elf_inp_file2 to ""
if options.elf_inp_file2:
elf_inp_file2 = options.elf_inp_file2
else:
elf_inp_file2 = ""
# Do same for xbl_sec
elf_inp_xbl_sec = options.elf_inp_xbl_sec if options.elf_inp_xbl_sec else ""
binary_out = options.binary_out
if options.elf_1_arch == '64':
is_elf1_64_bit = True
else:
is_elf1_64_bit = False
# If second filename is not given then set is_elf2_64_bit to false so it
# can be passed even though it is not used.
if options.elf_inp_file2:
if options.elf_2_arch == '64':
is_elf2_64_bit = True
else:
is_elf2_64_bit = False
else:
is_elf2_64_bit = False
if options.elf_inp_xbl_sec:
if options.elf_xbl_sec_arch == '64':
is_elf_xbl_sec_64_bit = True
else:
is_elf_xbl_sec_64_bit = False
else:
is_elf_xbl_sec_64_bit = False
# If output ELF arch is given then set is_out_elf_64_bit accordingly.
# If not then default to be input1's setting
if options.elf_out_arch:
if options.elf_out_arch == '64':
is_out_elf_64_bit = True
else:
is_out_elf_64_bit = False
else:
is_out_elf_64_bit = is_elf1_64_bit
# Store ZI Out of Bounds value
if not options.zi_oob:
zi_oob_enabled = False
else:
zi_oob_enabled = True
mbn_type = 'elf'
header_format = 'reg'
gen_dict['IMAGE_KEY_IMAGE_ID'] = mbn_tools.ImageType.APPSBL_IMG
#gen_dict['IMAGE_KEY_IMAGE_SOURCE'] = 0
#gen_dict['IMAGE_KEY_IMAGE_DEST'] = 0
gen_dict['IMAGE_KEY_MBN_TYPE'] = mbn_type
image_header_secflag = 'non_secure'
source_base = os.path.splitext(str(binary_out))[0]
target_base = os.path.splitext(str(binary_out))[0]
merged_elf = source_base + "_merged.elf"
source_elf = source_base + "_nohash.elf"
target_hash = target_base + ".hash"
target_hash_hd = target_base + "_hash.hd"
target_phdr_elf = target_base + "_phdr.pbn"
target_nonsec = target_base + "_combined_hash.mbn"
#print "Input file 1:", elf_inp_file1
#print "Input file 2:", elf_inp_file2
#print "Output file:", binary_out
merge_elfs([],
elf_inp_file1,
elf_inp_file2,
elf_inp_xbl_sec,
merged_elf,
is_elf1_64_bit,
is_elf2_64_bit,
is_elf_xbl_sec_64_bit,
is_out_elf_64_bit,
zi_oob_enabled)
# Hash the image if user did not explicitly say not to
if options.hash_image:
# Just copy the merged elf to the final output name
shutil.move(merged_elf, binary_out)
else:
shutil.copy(merged_elf, source_elf)
# Create hash table
rv = mbn_tools.pboot_gen_elf([],
source_elf,
target_hash,
elf_out_file_name = target_phdr_elf,
secure_type = image_header_secflag)
if rv:
raise RuntimeError, "Failed to run pboot_gen_elf"
# Create hash table header
rv = mbn_tools.image_header([],
gen_dict,
target_hash,
target_hash_hd,
image_header_secflag,
elf_file_name = source_elf)
if rv:
raise RuntimeError, "Failed to create image header for hash segment"
files_to_cat_in_order = [target_hash_hd, target_hash]
mbn_tools.concat_files (target_nonsec, files_to_cat_in_order)
# Add the hash segment into the ELF
mbn_tools.pboot_add_hash([],
target_phdr_elf,
target_nonsec,
binary_out)
return
##############################################################################
# roundup
##############################################################################
def roundup(x, precision):
return x if x % precision == 0 else (x + precision - (x % precision))
##############################################################################
# merge_elfs
##############################################################################
def merge_elfs(env,
elf_in_file_name1,
elf_in_file_name2,
elf_in_file_xbl_sec,
elf_out_file_name,
is_elf1_64_bit,
is_elf2_64_bit,
is_elf_xbl_sec_64_bit,
is_out_elf_64_bit,
zi_oob_enabled):
[elf_header1, phdr_table1] = \
mbn_tools.preprocess_elf_file(elf_in_file_name1)
# Check to make sure second file path exists before using
if elf_in_file_name2 != "":
[elf_header2, phdr_table2] = \
mbn_tools.preprocess_elf_file(elf_in_file_name2)
# Check to make sure xbl_sec file path exists before using
if elf_in_file_xbl_sec != "":
[elf_headerxblsec, phdr_tablexblsec] = \
mbn_tools.preprocess_elf_file(elf_in_file_xbl_sec)
# Open Files
elf_in_fp1 = mbn_tools.OPEN(elf_in_file_name1, "rb")
if elf_in_file_name2 != "":
elf_in_fp2 = mbn_tools.OPEN(elf_in_file_name2, "rb")
if elf_in_file_xbl_sec != "":
elf_in_fpxblsec = mbn_tools.OPEN(elf_in_file_xbl_sec, "rb")
if elf_out_file_name is not None:
elf_out_fp = mbn_tools.OPEN(elf_out_file_name, "wb+")
# Calculate the new program header size. This is dependant on the output
# ELF type and number of program headers going into output.
if is_out_elf_64_bit:
phdr_total_size = elf_header1.e_phnum * ELF64_PHDR_SIZE
phdr_total_count = elf_header1.e_phnum
else:
phdr_total_size = elf_header1.e_phnum * ELF32_PHDR_SIZE
phdr_total_count = elf_header1.e_phnum
# This logic only applies if two files are to be merged
if elf_in_file_name2 != "":
if is_out_elf_64_bit:
phdr_total_size += elf_header2.e_phnum * ELF64_PHDR_SIZE
phdr_total_count += elf_header2.e_phnum
else:
phdr_total_size += elf_header2.e_phnum * ELF32_PHDR_SIZE
phdr_total_count += elf_header2.e_phnum
# Account for xbl_sec header if included
if elf_in_file_xbl_sec != "":
phdr_total_count += 1
if is_out_elf_64_bit:
phdr_total_size += ELF64_PHDR_SIZE
else:
phdr_total_size += ELF32_PHDR_SIZE
# Create a new ELF header for the output file
if is_out_elf_64_bit:
out_elf_header = mbn_tools.Elf64_Ehdr('\0' * ELF64_HDR_SIZE)
out_elf_header.e_phoff = ELF64_HDR_SIZE
out_elf_header.e_ehsize = ELF64_HDR_SIZE
out_elf_header.e_phentsize = ELF64_PHDR_SIZE
out_elf_header.e_machine = 183
out_elf_header.e_ident = str('\x7f' + 'E' + 'L' + 'F' + \
'\x02' + \
'\x01' + \
'\x01' + \
'\x00' + \
'\x00' + \
('\x00' * 7))
out_elf_header.e_entry = elf_header1.e_entry
else:
out_elf_header = mbn_tools.Elf32_Ehdr('\0' * ELF32_HDR_SIZE)
out_elf_header.e_phoff = ELF32_HDR_SIZE
out_elf_header.e_ehsize = ELF32_HDR_SIZE
out_elf_header.e_phentsize = ELF32_PHDR_SIZE
out_elf_header.e_machine = 40
out_elf_header.e_entry = elf_header1.e_entry
out_elf_header.e_ident = str('\x7f' + 'E' + 'L' + 'F' + \
'\x01' + \
'\x01' + \
'\x01' + \
'\x00' + \
'\x00' + \
('\x00' * 7))
# Address needs to be verified that it is not greater than 32 bits
# as it is possible to go from a 64 bit elf to 32.
if (elf_header1.e_entry > 0xFFFFFFFF):
print "ERROR: File 1's entry point is too large to convert."
exit()
out_elf_header.e_entry = elf_header1.e_entry
# Common header entries
out_elf_header.e_type = 2
out_elf_header.e_version = 1
out_elf_header.e_shoff = 0
out_elf_header.e_flags = 0
out_elf_header.e_shentsize = 0
out_elf_header.e_shnum = 0
out_elf_header.e_shstrndx = 0
# If ZI OOB is enabled then it is possible that a segment could be discarded
# Scan for that instance and handle before setting e_phnum and writing header
# Ensure ELF output is 32 bit
if zi_oob_enabled == True and is_out_elf_64_bit == False:
for i in range(len(phdr_table1)):
if (phdr_table1[i].p_vaddr > 0xFFFFFFFF) or \
(phdr_table1[i].p_paddr > 0xFFFFFFFF):
if phdr_table1[i].p_filesz == 0:
phdr_total_count = phdr_total_count - 1
if elf_in_file_name2 != "":
for i in range(len(phdr_table2)):
if (phdr_table2[i].p_vaddr > 0xFFFFFFFF) or \
(phdr_table2[i].p_paddr > 0xFFFFFFFF):
if phdr_table2[i].p_filesz == 0:
phdr_total_count = phdr_total_count - 1
# Do not include xbl_sec in above calculation
# xbl_sec is to be treated as a single blob
# Now it is ok to populate the ELF header and write it out
out_elf_header.e_phnum = phdr_total_count
# write elf header
if is_out_elf_64_bit == False:
elf_out_fp.write(mbn_tools.Elf32_Ehdr.getPackedData(out_elf_header))
else:
elf_out_fp.write(mbn_tools.Elf64_Ehdr.getPackedData(out_elf_header))
phdr_offset = out_elf_header.e_phoff # offset of where to put next phdr
# offset the start of the segments just after the program headers
segment_offset = roundup(out_elf_header.e_phoff + phdr_total_size, PAGE_SIZE)
# Output first elf data
for i in range(elf_header1.e_phnum):
curr_phdr = phdr_table1[i]
# Copy program header piece by piece to ensure possible conversion success
if is_out_elf_64_bit == True:
# Converting from 32 to 64 elf requires no data size validation
new_phdr = mbn_tools.Elf64_Phdr('\0' * ELF64_PHDR_SIZE)
new_phdr.p_type = curr_phdr.p_type
new_phdr.p_offset = segment_offset
new_phdr.p_vaddr = curr_phdr.p_vaddr
new_phdr.p_paddr = curr_phdr.p_paddr
new_phdr.p_filesz = curr_phdr.p_filesz
new_phdr.p_memsz = curr_phdr.p_memsz
new_phdr.p_flags = curr_phdr.p_flags
new_phdr.p_align = curr_phdr.p_align
else:
# Converting from 64 to 32 elf requires data size validation
# Note that there is an option to discard a segment if it is only ZI
# and its address is greater than 32 bits
new_phdr = mbn_tools.Elf32_Phdr('\0' * ELF32_PHDR_SIZE)
new_phdr.p_type = curr_phdr.p_type
new_phdr.p_offset = segment_offset
if curr_phdr.p_vaddr > 0xFFFFFFFF:
if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0):
continue
else:
print "ERROR: File 1 VAddr is too large for conversion."
exit()
new_phdr.p_vaddr = curr_phdr.p_vaddr
if curr_phdr.p_paddr > 0xFFFFFFFF:
if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0):
continue
else:
print "ERROR: File 1 PAddr is too large for conversion."
exit()
new_phdr.p_paddr = curr_phdr.p_paddr
if curr_phdr.p_filesz > 0xFFFFFFFF:
print "ERROR: File 1 Filesz is too large for conversion."
exit()
new_phdr.p_filesz = curr_phdr.p_filesz
if curr_phdr.p_memsz > 0xFFFFFFFF:
print "ERROR: File 1 Memsz is too large for conversion."
exit()
new_phdr.p_memsz = curr_phdr.p_memsz
if curr_phdr.p_flags > 0xFFFFFFFF:
print "ERROR: File 1 Flags is too large for conversion."
exit()
new_phdr.p_flags = curr_phdr.p_flags
if curr_phdr.p_align > 0xFFFFFFFF:
print "ERROR: File 1 Align is too large for conversion."
exit()
new_phdr.p_align = curr_phdr.p_align
#print "i=",i
#print "phdr_offset=", phdr_offset
# update output file location to next phdr location
elf_out_fp.seek(phdr_offset)
# increment phdr_offset to next location
phdr_offset += out_elf_header.e_phentsize
inp_data_offset = curr_phdr.p_offset # used to read data from input file
# print "inp_data_offset="
# print inp_data_offset
#
# print "curr_phdr.p_offset="
# print curr_phdr.p_offset
#
# print "curr_phdr.p_filesz="
# print curr_phdr.p_filesz
# output current phdr
if is_out_elf_64_bit == False:
elf_out_fp.write(mbn_tools.Elf32_Phdr.getPackedData(new_phdr))
else:
elf_out_fp.write(mbn_tools.Elf64_Phdr.getPackedData(new_phdr))
# Copy the ELF segment
bytes_written = mbn_tools.file_copy_offset(elf_in_fp1,
inp_data_offset,
elf_out_fp,
new_phdr.p_offset,
new_phdr.p_filesz)
# update data segment offset to be aligned after previous segment
segment_offset += roundup(new_phdr.p_filesz, SEGMENT_ALIGN);
elf_in_fp1.close()
# Output second elf data if applicable
if elf_in_file_name2 != "":
for i in range(elf_header2.e_phnum):
curr_phdr = phdr_table2[i]
# Copy program header piece by piece to ensure possible conversion success
if is_out_elf_64_bit == True:
# Converting from 32 to 64 elf requires no data size validation
new_phdr = mbn_tools.Elf64_Phdr('\0' * ELF64_PHDR_SIZE)
new_phdr.p_type = curr_phdr.p_type
new_phdr.p_offset = segment_offset
new_phdr.p_vaddr = curr_phdr.p_vaddr
new_phdr.p_paddr = curr_phdr.p_paddr
new_phdr.p_filesz = curr_phdr.p_filesz
new_phdr.p_memsz = curr_phdr.p_memsz
new_phdr.p_flags = curr_phdr.p_flags
new_phdr.p_align = curr_phdr.p_align
else:
# Converting from 64 to 32 elf requires data size validation
# Note that there is an option to discard a segment if it is only ZI
# and its address is greater than 32 bits
new_phdr = mbn_tools.Elf32_Phdr('\0' * ELF32_PHDR_SIZE)
new_phdr.p_type = curr_phdr.p_type
new_phdr.p_offset = segment_offset
if curr_phdr.p_vaddr > 0xFFFFFFFF:
if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0):
continue
else:
print "ERROR: File 2 VAddr is too large for conversion."
exit()
new_phdr.p_vaddr = curr_phdr.p_vaddr
if curr_phdr.p_paddr > 0xFFFFFFFF:
if (zi_oob_enabled == True) and (curr_phdr.p_filesz == 0):
continue
else:
print "ERROR: File 2 PAddr is too large for conversion."
exit()
new_phdr.p_paddr = curr_phdr.p_paddr
if curr_phdr.p_filesz > 0xFFFFFFFF:
print "ERROR: File 2 Filesz is too large for conversion."
exit()
new_phdr.p_filesz = curr_phdr.p_filesz
if curr_phdr.p_memsz > 0xFFFFFFFF:
print "ERROR: File 2 Memsz is too large for conversion."
exit()
new_phdr.p_memsz = curr_phdr.p_memsz
if curr_phdr.p_flags > 0xFFFFFFFF:
print "ERROR: File 2 Flags is too large for conversion."
exit()
new_phdr.p_flags = curr_phdr.p_flags
if curr_phdr.p_align > 0xFFFFFFFF:
print "ERROR: File 2 Align is too large for conversion."
exit()
new_phdr.p_align = curr_phdr.p_align
# print "i=",i
# print "phdr_offset=", phdr_offset
# update output file location to next phdr location
elf_out_fp.seek(phdr_offset)
# increment phdr_offset to next location
phdr_offset += out_elf_header.e_phentsize
inp_data_offset = curr_phdr.p_offset # used to read data from input file
# print "inp_data_offset="
# print inp_data_offset
#
# print "curr_phdr.p_offset="
# print curr_phdr.p_offset
#
# print "curr_phdr.p_filesz="
# print curr_phdr.p_filesz
# output current phdr
if is_out_elf_64_bit == False:
elf_out_fp.write(mbn_tools.Elf32_Phdr.getPackedData(new_phdr))
else:
elf_out_fp.write(mbn_tools.Elf64_Phdr.getPackedData(new_phdr))
# Copy the ELF segment
bytes_written = mbn_tools.file_copy_offset(elf_in_fp2,
inp_data_offset,
elf_out_fp,
new_phdr.p_offset,
new_phdr.p_filesz)
# update data segment offset to be aligned after previous segment
segment_offset += roundup(new_phdr.p_filesz, SEGMENT_ALIGN);
elf_in_fp2.close()
# Embed xbl_sec image if provided
if elf_in_file_xbl_sec != "":
# Scan pheaders in xbl_sec for segment that contains entry point address
entry_seg_offset = -1
entry_addr = elf_headerxblsec.e_entry
for i in range(elf_headerxblsec.e_phnum):
phdr = phdr_tablexblsec[i]
max_addr = phdr.p_vaddr + phdr.p_memsz
if phdr.p_vaddr <= entry_addr <= max_addr:
entry_seg_offset = phdr.p_offset
break
if entry_seg_offset == -1:
print "Error: Failed to find entry point in any segment!"
exit()
# magical equation for program header's phys and virt addr
phys_virt_addr = entry_addr - entry_seg_offset
if is_out_elf_64_bit:
# Converting from 32 to 64 elf requires no data size validation
new_phdr = mbn_tools.Elf64_Phdr('\0' * ELF64_PHDR_SIZE)
new_phdr.p_type = 0x1
new_phdr.p_offset = segment_offset
new_phdr.p_vaddr = phys_virt_addr
new_phdr.p_paddr = phys_virt_addr
new_phdr.p_filesz = os.path.getsize(elf_in_file_xbl_sec)
new_phdr.p_memsz = new_phdr.p_filesz
new_phdr.p_flags = 0x5
new_phdr.p_align = 0x1000
else:
# Converting from 64 to 32 elf requires data size validation
# Don't discard the segment containing xbl_sec, simply error out
# if the address is greater than 32 bits
new_phdr = mbn_tools.Elf32_Phdr('\0' * ELF32_PHDR_SIZE)
new_phdr.p_type = 0x1 #
new_phdr.p_offset = segment_offset
new_phdr.p_flags = 0x5
new_phdr.p_align = 0x1000
if phys_virt_addr > 0xFFFFFFFF:
if zi_oob_enabled == False or curr_phdr.p_filesz != 0:
print "ERROR: File xbl_sec VAddr or PAddr is too large for conversion."
exit()
new_phdr.p_vaddr = phys_virt_addr
new_phdr.p_paddr = phys_virt_addr
if os.path.getsize(elf_in_file_xbl_sec) > 0xFFFFFFFF:
print "ERROR: File xbl_sec Filesz is too large for conversion."
exit()
new_phdr.p_filesz = os.path.getsize(elf_in_file_xbl_sec)
new_phdr.p_memsz = new_phdr.p_filesz
# update output file location to next phdr location
elf_out_fp.seek(phdr_offset)
# increment phdr_offset to next location
phdr_offset += out_elf_header.e_phentsize
# Copy entire xbl_sec file, so start from byte 0
inp_data_offset = 0
# Output xbl_sec's phdr
elf_in_file_xbl_sec
if is_out_elf_64_bit == False:
elf_out_fp.write(mbn_tools.Elf32_Phdr.getPackedData(new_phdr))
else:
elf_out_fp.write(mbn_tools.Elf64_Phdr.getPackedData(new_phdr))
# Copy the ENTIRE xbl_sec image
bytes_written = mbn_tools.file_copy_offset(elf_in_fpxblsec,
inp_data_offset,
elf_out_fp,
new_phdr.p_offset,
new_phdr.p_filesz)
# update data segment offset to be aligned after previous segment
# Not necessary, unless appending more pheaders after this point
segment_offset += roundup(new_phdr.p_filesz, SEGMENT_ALIGN);
elf_in_fpxblsec.close()
elf_out_fp.close()
return 0
main()
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