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3023 decky 1
#!/usr/bin/env python
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#
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# Copyright (c) 2008 Martin Decky
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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
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# - Redistributions of source code must retain the above copyright
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#   notice, this list of conditions and the following disclaimer.
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# - Redistributions in binary form must reproduce the above copyright
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#   notice, this list of conditions and the following disclaimer in the
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#   documentation and/or other materials provided with the distribution.
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# - The name of the author may not be used to endorse or promote products
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#   derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# 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
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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"""
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Binary package creator
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"""
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import sys
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import os
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import subprocess
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def usage(prname):
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    "Print usage syntax"
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    print prname + " <OBJCOPY> <FORMAT> <ARCH> <ALIGNMENT> <UINTPTR>"
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def main():
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    if (len(sys.argv) < 6):
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        usage(sys.argv[0])
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        return
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    if (not sys.argv[4].isdigit()):
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        print "<ALIGNMENT> must be a number"
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        return
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    objcopy = sys.argv[1]
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    format = sys.argv[2]
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    arch = sys.argv[3]
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    align = int(sys.argv[4], 0)
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    uintptr = sys.argv[5]
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    workdir = os.getcwd()
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    header = file("_components.h", "w")
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    data = file("_components.c", "w")
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    header.write("#ifndef ___COMPONENTS_H__\n")
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    header.write("#define ___COMPONENTS_H__\n\n")
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    data.write("#include \"_components.h\"\n\n")
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    data.write("void init_components(component_t *components)\n")
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    data.write("{\n")
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    cnt = 0
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    link = ""
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    for task in sys.argv[6:]:
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        basename = os.path.basename(task)
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        plainname = os.path.splitext(basename)[0]
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        path = os.path.dirname(task)
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        object = plainname + ".o"
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        symbol = "_binary_" + basename.replace(".", "_")
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        macro = plainname.upper()
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        print task + " -> " + object
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        if (align > 1):
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            link += "\t\t. = ALIGN(" + ("%d" % align) + ");\n"
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        link += "\t\t*(." + plainname + "_image);\n"
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        header.write("extern int " + symbol + "_start;\n")
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        header.write("extern int " + symbol + "_end;\n\n")
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        header.write("#define " + macro + "_START ((void *) &" + symbol + "_start)\n")
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        header.write("#define " + macro + "_END ((void *) &" + symbol + "_end)\n")
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        header.write("#define " + macro + "_SIZE ((" + uintptr + ") " + macro + "_END - (" + uintptr + ") " + macro + "_START)\n\n")
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        data.write("\tcomponents[" + ("%d" % cnt) + "].name = \"" + plainname + "\";\n")
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        data.write("\tcomponents[" + ("%d" % cnt) + "].start = " + macro + "_START;\n")
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        data.write("\tcomponents[" + ("%d" % cnt) + "].end = " + macro + "_END;\n")
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        data.write("\tcomponents[" + ("%d" % cnt) + "].size = " + macro + "_SIZE;\n\n")
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        os.chdir(path)
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        subprocess.call([objcopy,
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            "-I", "binary",
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            "-O", format,
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            "-B", arch,
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            "--rename-section", ".data=." + plainname + "_image",
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            basename, os.path.join(workdir, object)])
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        os.chdir(workdir)
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        cnt += 1
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    header.write("#define COMPONENTS " + ("%d" % cnt) + "\n\n")
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    header.write("typedef struct {\n")
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    header.write("\tchar *name;\n\n")
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    header.write("\tvoid *start;\n")
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    header.write("\tvoid *end;\n")
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    header.write("\t" + uintptr + " size;\n")
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    header.write("} component_t;\n\n")
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    header.write("extern void init_components(component_t *components);\n\n")
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    header.write("#endif\n")
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    data.write("}\n")
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    header.close()
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    data.close()
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    linkname = "_link.ld"
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    link_in = file(linkname + ".in", "r")
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    template = link_in.read(os.path.getsize(linkname + ".in"))
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    link_in.close()
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    link_out = file(linkname, "w")
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    link_out.write(template.replace("[[COMPONENTS]]", link))
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    link_out.close()
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if __name__ == '__main__':
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    main()