Added untracked scripts. Added script-location relative module import

scripts/conts/pack.py

@@ -0,0 +1,113 @@
+#! /usr/bin/env python2.6
+# -*- mode: python; coding: utf-8; -*-
+#
+#  Codezero -- a microkernel for embedded systems.
+#
+#  Copyright © 2009  B Labs Ltd
+#
+import os, sys, shelve, glob
+from os.path import join
+
+PROJRELROOT = '../../'
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), PROJRELROOT)))
+sys.path.append(os.path.abspath('../'))
+
+from config.projpaths import *
+from config.configuration import *
+
+container_assembler_body = \
+'''
+.align 4
+.section .img.%d
+.incbin "%s"
+'''
+
+container_lds_start = \
+'''/*
+ * Autogenerated linker script that embeds each image to be
+ * placed in a single container.
+ *
+ * Copyright (C) 2009 B Labs
+ */
+
+SECTIONS
+{'''
+
+container_lds_body = \
+'''
+	.img.%d : { *(.img.%d) }'''
+
+container_lds_end = \
+'''
+}
+'''
+
+# Create container build base as:
+# conts/linux -> build/cont[0-9]
+def source_to_builddir(srcdir, id):
+    cont_builddir = \
+        os.path.relpath(srcdir, \
+                        PROJROOT).replace("conts", \
+                                          "cont" + str(id))
+    return join(BUILDDIR, cont_builddir)
+
+class LinuxContainerPacker:
+    def __init__(self, container, linux_builder, rootfs_builder):
+
+        # Here, we simply attempt to get PROJROOT/conts as
+        # PROJROOT/build/cont[0-9]
+        self.CONTAINER_BUILDDIR_BASE = \
+            source_to_builddir(join(PROJROOT,'conts'), container.id)
+
+        self.container_lds_out = join(self.CONTAINER_BUILDDIR_BASE, \
+                                      'container.lds')
+        self.container_S_out = join(self.CONTAINER_BUILDDIR_BASE, 'container.S')
+        self.container_elf_out = join(self.CONTAINER_BUILDDIR_BASE, \
+                                      'container' + str(container.id) + '.elf')
+        self.kernel_image_in = linux_builder.kernel_image
+        self.rootfs_elf_in = rootfs_builder.rootfs_elf_out
+
+    def generate_container_assembler(self, source):
+        with open(self.container_S_out, 'w+') as f:
+            file_body = ""
+            img_i = 0
+            for img in source:
+                file_body += container_assembler_body % (img_i, img)
+                img_i += 1
+
+            f.write(file_body)
+            f.close()
+
+    def generate_container_lds(self, source):
+        with open(self.container_lds_out, 'w+') as f:
+            img_i = 0
+            file_body = container_lds_start
+            for img in source:
+                file_body += container_lds_body % (img_i, img_i)
+                img_i += 1
+            file_body += container_lds_end
+            f.write(file_body)
+            f.close()
+
+    def pack_container(self):
+        self.generate_container_lds([self.kernel_image_in, \
+                                     self.rootfs_elf_in])
+        self.generate_container_assembler([self.kernel_image_in, \
+                                           self.rootfs_elf_in])
+        os.system("arm-none-linux-gnueabi-gcc " + "-nostdlib -o %s -T%s %s" \
+                  % (self.container_elf_out, \
+                     self.container_lds_out,
+                     self.container_S_out))
+        # Final file is returned so that the final packer needn't
+        # get the packer object for this information
+        return self.container_elf_out
+
+    def clean(self):
+        if os.path.exists(self.container_elf_out):
+            shutil.rmtree(self.container_elf_out)
+        if os.path.exists(self.container_lds_out):
+            shutil.rmtree(self.container_lds_out)
+        if os.path.exists(self.container_S_out):
+            shutil.rmtree(self.container_S_out)
+