Set up u-boot glue code and patching scripts.

[yaffs2.git] / direct / u-boot / patch-u-boot.sh

diff --git a/direct/u-boot/patch-u-boot.sh b/direct/u-boot/patch-u-boot.sh
new file mode 100755 (executable)
index 0000000..8caa2e8
--- /dev/null
+++ b/direct/u-boot/patch-u-boot.sh
@@ -0,0 +1,118 @@
+#!/bin/sh
+#
+# YAFFS: Yet another FFS. A NAND-flash specific file system.
+#
+# Copyright (C) 2002-2010 Aleph One Ltd.
+#
+# Created by Charles Manning <charles@aleph1.co.uk>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# Patch yaffs2 into u-boot
+#
+#  args: 
+#        u-boot-path  : Full path to u-boot sources to be patched
+#
+#  Inspired yaffs kernel patching script
+
+set -e -x
+
+UBOOTDIR=$1
+
+# Display usage of this script
+usage () {
+       echo "usage:  $0 u-boot-path"
+       exit 1
+}
+
+not_u_boot () {
+       echo "$1 does not seem to be a u-boot directory"
+       exit 1
+}
+
+
+if [ -z $UBOOTDIR ]
+then
+    usage;
+fi
+
+# Basic sanity check:
+# Check it has a Makefile, common and fs sub-directories
+
+if [ ! -f "$UBOOTDIR/Makefile" ]
+then
+       not_u_boot
+fi
+
+if [ ! -d "$UBOOTDIR/common" ]
+then
+       not_u_boot
+fi
+
+if [ ! -d "$UBOOTDIR/fs" ]
+then
+       not_u_boot
+fi
+
+
+YAFFS_IN_MAKEFILE=`grep -s libyaffs2 <$UBOOTDIR/Makefile | head -n 1`
+YAFFS_IN_COMMON=`grep -s yaffs2 <$UBOOTDIR/common/Makefile | head -n 1`
+LIB_A=`grep -s libnet\.a <$UBOOTDIR/Makefile | head -n 1`
+
+if [ ! -z "$LIB_A" ]
+then
+    A_OR_O="a"
+else
+    A_OR_O="o"
+fi
+
+# Patch Makefile if it does not mention yaffs2
+if [ ! -z "$YAFFS_IN_MAKEFILE" ]
+then
+    echo "$UBOOTDIR/Makefile already makes yaffs library"
+else
+   # Update the Makefile
+   mv -f $UBOOTDIR/Makefile $UBOOTDIR/Makefile.old
+   sed -n -e "/libnet/,99999 ! p" < $UBOOTDIR/Makefile.old > $UBOOTDIR/Makefile
+   echo "LIBS += fs/yaffs2/libyaffs2.$A_OR_O" >> $UBOOTDIR/Makefile
+   sed -n -e "/libnet/,99999 p" < $UBOOTDIR/Makefile.old >> $UBOOTDIR/Makefile
+fi
+
+# Patch common/Makefile if it does not mention yaffs2
+if [ ! -z "$YAFFS_IN_COMMON" ]
+then
+    echo "$UBOOTDIR/common/Makefile already makes yaffs commands"
+else
+   # Update the Makefile
+   mv -f $UBOOTDIR/common/Makefile $UBOOTDIR/common/Makefile.old
+   sed -n -e "/cmd_jffs/,99999 ! p" <$UBOOTDIR/common/Makefile.old > $UBOOTDIR/common/Makefile
+   echo "COBJS-\$(CONFIG_YAFFS2) += cmd_yaffs2.o" >> $UBOOTDIR/common/Makefile
+   sed -n -e "/cmd_jffs/,99999 p" <$UBOOTDIR/common/Makefile.old >> $UBOOTDIR/common/Makefile
+fi
+
+
+#
+# Ensure the direct code is up to date
+#
+
+RUN_DIR=`pwd`
+cd ..
+./handle_common.sh copy
+cd $RUN_DIR
+
+#
+# Copy in the files we need
+#
+
+cp common/* $UBOOTDIR/common/
+
+mkdir -p $UBOOTDIR/fs/yaffs2
+cp ../*.[ch] $UBOOTDIR/fs/yaffs2/
+cp fs/yaffs2/*.[ch] $UBOOTDIR/fs/yaffs2/
+
+sed -e "s/A_OR_O/$A_OR_O/" < fs/yaffs2/Makefile > $UBOOTDIR/fs/yaffs2/Makefile
+
+
+