Subversion Repositories HelenOS-historic

#!/usr/bin/env python

import sys

import struct

import re

symline = re.compile(r'(0x[a-f0-9]+)\s+([^\s]+)$')

fileline = re.compile(r'[^\s]+\s+0x[a-f0-9]+\s+0x[a-f0-9]+\s+([^\s]+\.o)$')

MAXSTRING=63

symtabfmt = "<Q%ds" % (MAXSTRING+1)

def read_symbols(inp):

    while 1:

        line = inp.readline()

        if not line:

            return

        if 'memory map' in line:

            break        

    symtable = {}

    filename = ''

    while 1:

        line = inp.readline()

        if not line.strip():

            continue

        if line[0] not in (' ','.'):

            break

        line = line.strip()

        # Search for file name

        res = fileline.match(line)

        if res:

            filename = res.group(1)

        # Search for symbols

        res = symline.match(line)

        if res:

            symtable[int(res.group(1),16)] = filename + ':' + res.group(2)

    return symtable

def generate(inp, out):

    symtab = read_symbols(inp)

    if not symtab:

        print "Bad kernel.map format, empty."

        sys.exit(1)

    addrs = symtab.keys()

    addrs.sort()

    for addr in addrs:

        # Do not write address 0, it indicates end of data

        if addr == 0:

            continue

        data = struct.pack(symtabfmt,addr,symtab[addr][:MAXSTRING])

        out.write(data)

    out.write(struct.pack(symtabfmt,0,''))

def main():

    if len(sys.argv) != 3:

        print "Usage: %s <kernel.map> <output.bin>" % sys.argv[0]

        sys.exit(1)

    inp = open(sys.argv[1],'r')

    out = open(sys.argv[2],'w')

    generate(inp,out)

    inp.close()

    out.close()

if __name__ == '__main__':

    main()