97 lines
3.7 KiB
Python
97 lines
3.7 KiB
Python
#! /usr/bin/env python
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# Copyright (c) 2013-2014 Freescale Semiconductor, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# o Redistributions of source code must retain the above copyright notice, this list
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# of conditions and the following disclaimer.
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#
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# o Redistributions in binary form must reproduce the above copyright notice, this
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# list of conditions and the following disclaimer in the documentation and/or
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# other materials provided with the distribution.
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#
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# o Neither the name of Freescale Semiconductor, Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from this
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# software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import sys
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import os
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import elf
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# usage: create_fl_image.py <elffile> <binfile> <cfile>
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def main(argv):
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# Collect arguments
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if len(sys.argv) != 4:
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print 'usage: create_fl_image.py <elffile> <binfile> <cfile>'
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sys.exit(2)
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elfFilename = argv[0]
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binFilename = argv[1]
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cFilename = argv[2]
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# Open files
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try:
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binFile = open(binFilename, 'rb')
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except IOError:
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print 'cannot open file %s' % binFilename
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sys.exit(2)
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try:
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cFile = open(cFilename, 'w')
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except IOError:
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print 'cannot open file %s' % cFilename
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sys.exit(2)
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elfData = elf.ELFObject()
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try:
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with open(elfFilename, 'rb') as elfFile:
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elfData.fromFile(elfFile)
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if elfData.e_type != elf.ELFObject.ET_EXEC:
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raise Exception("No executable")
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resetHandler = elfData.getSymbol("Reset_Handler")
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vectors = elfData.getSymbol("__Vectors")
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stack = elfData.getSymbol("CSTACK$$Limit")
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except:
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print 'cannot process file %s' % elfFilename
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sys.exit(2)
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# Print header
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print >> cFile, '/* Created by create_fl_image.py, do not edit */\n'
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print >> cFile, '#include "bootloader_common.h"\n'
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print >> cFile, 'const uint8_t g_flashloaderImage[] = {'
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# Print byte data
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totalBytes = 0
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while True:
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data = binFile.read(16)
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dataLen = len(data)
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if dataLen == 0: break
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totalBytes += dataLen;
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cFile.write(' ')
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for i in range(dataLen):
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cFile.write('0x%02x, ' % ord(data[i]))
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print >> cFile
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print >> cFile, '};\n'
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# Print size and other info
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cFile.write('const uint32_t g_flashloaderSize = %dU;\n' % totalBytes)
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cFile.write('const uint32_t g_flashloaderBase = 0x%x;\n' % vectors.st_value)
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cFile.write('const uint32_t g_flashloaderEntry = 0x%x;\n' % resetHandler.st_value)
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cFile.write('const uint32_t g_flashloaderStack = 0x%x;\n' % stack.st_value)
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if __name__ == "__main__":
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main(sys.argv[1:])
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