Subversion Repositories c0or1k

#! /usr/bin/env python2.6

# -*- mode: python; coding: utf-8; -*-

#

#  Codezero -- Virtualization microkernel for embedded systems.

#

#  Copyright © 2009  B Labs Ltd

#

import os, sys

from optparse import OptionParser

from os.path import join

from os import path

import elf, sys

def conv_hex(val):

    hexval = hex(val)

    if hexval[-1:] == 'L':

        hexval = hexval[:-1]

    return hexval

def next_available_lma(srcfile):

    elffile = elf.ElfFile.from_file(srcfile)

    paddr_max = 0

    p_align = 0

    for pheader in elffile.pheaders:

        x = pheader.ai

        if str(x.p_type) == "LOAD":

            paddr = x.p_paddr + x.p_memsz

            p_align = x.p_align

            if paddr > paddr_max:

                paddr_max = paddr

    paddr_aligned = paddr_max & ~(p_align.value - 1)

    #print "paddr_max %s " % hex(paddr_max)

    #print "paddr_aligned %s " % hex(paddr_aligned)

    if paddr_max & (p_align.value - 1):

        paddr_aligned += p_align.value

    return conv_hex(paddr_aligned)