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)
+

tools/pyelf/lmapeek.py

@@ -0,0 +1,88 @@
+#! /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
+
+
+lds_header = \
+'''
+/*
+ * The next free p_align'ed LMA base address
+ *
+ * Usually in ARM p_align == 16K
+ *
+ * p_align = %s
+ */
+'''
+
+
+def main():
+    usage = "usage: %prog [options] arg"
+    parser = OptionParser(usage)
+
+    parser.add_option("--first-free-page",
+                      action = "store_true", dest = "ffpage",
+                      default = False,
+                      help = "Prints out the first free loadable page "
+                             "available after the image in "
+                             "linker script format")
+    parser.add_option("--lma-start-end", action = "store_true",
+                      dest = "lma_boundary", default = False,
+	                  help = "Prints out the start and end LMA boundaries "
+                             "of an image. Useful for aligining images in "
+                             "physical memory.")
+
+    (options, args) = parser.parse_args()
+
+    if len(args) != 1:
+        parser.print_help()
+
+    elffile = elf.ElfFile.from_file(args[0])
+
+    if options.lma_boundary:
+        paddr_first = 0
+        paddr_start = 0
+        paddr_end = 0
+        for pheader in elffile.pheaders:
+            x = pheader.ai
+            if str(x.p_type) != "LOAD":
+                continue
+            if paddr_first == 0:
+                paddr_first = 1
+                paddr_start = x.p_paddr.value
+            if paddr_start > x.p_paddr.value:
+                paddr_start = x.p_paddr.value
+            if paddr_end < x.p_paddr + x.p_memsz:
+                paddr_end = x.p_paddr + x.p_memsz
+
+        rest, image_name = path.split(args[0])
+        if image_name[-4] == ".":
+            image_name = image_name[:-4]
+
+        print image_name
+        if hex(paddr_start)[-1] == "L":
+            print "image_start " + hex(paddr_start)[:-1]
+        else:
+            print "image_start " + hex(paddr_start)
+        if hex(paddr_end)[-1] == "L":
+            print "image_end " + hex(paddr_end)[:-1]
+        else:
+            print "image_end " + hex(paddr_end)
+
+
+if __name__ == "__main__":
+    main()