Added the forgotten pyelf libraries

tools/pyelf/lmanext.py

@@ -0,0 +1,36 @@
+#! /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)
+    if paddr_max & (p_align.value - 1):
+        paddr_aligned += p_align.value
+    return conv_hex(paddr_aligned)
+