View source for Android 4.0.3 ICS on DM814x (Naon)

= Building Android =

== Building the kernel ==

Assuming that '''rowboat-android''' is the directory containing the full AOSP source code:
* '''kernel''' contains the Android kernel tree that must be patched to add Naon support
* '''out/target/product/ti814xevm/''' will contain the created root file system

To launch Android kernel build, enter the following commands:

<pre>

umask 0002
export PATH=<path_to_toolchain>:$PATH 
export ARCH=arm
export CROSS_COMPILE=arm-none-linux-gnueabi-
export OUT_DIR_COMMON_BASE=<path_to_build_directory>
export USE_CCACHE=1
export CCACHE_DIR=<path_to_build_cache_directory>
make TARGET_PRODUCT=naon OMAPES=6.x
</pre>

=== Makefile customization ===

'''N.B''': The main '''Makefile''' must be modified at rows 71-73 so that the kernel configuration file naon_ics_defconfig is used instead of the default one.
<pre>
ifeq ($(TARGET_PRODUCT), naon)
ifeq ($(KRN_DBG),1)
	$(MAKE) -C kernel ARCH=arm naon_ics_defconfig V=1 CONFIG_DEBUG_DONT_REORDER_CODE=1
else
	$(MAKE) -C kernel ARCH=arm naon_ics_defconfig
endif
endif
</pre>

== Building the RFS ==

To build the Android root file system (please note that it will take some time, depending on the host system performaces), launch the following commands:

<pre>
echo "Make new RFS..."
sudo make TARGET_PRODUCT=naon OMAPES=6.x fs_tarball
echo "DONE!"
</pre>

'''N.B''': The '''build/core/root.mk''' must be modified at row 13:

<pre>
ifeq ($(TARGET_PRODUCT), naon)
export SYSLINK_VARIANT_NAME := TI814X
CLEAN_RULE := syslink_clean sgx_clean kernel_clean clean
rowboat: sgx
else
</pre>

row 60

<pre>
endif
</pre>

row 83
<pre>
ifeq ($(TARGET_PRODUCT), naon)
ifeq ($(KRN_DBG),1)
	$(MAKE) -C kernel ARCH=arm naon_ics_defconfig V=1 CONFIG_DEBUG_DONT_REORDER_CODE=1
else
        $(MAKE) -C kernel ARCH=arm naon_ics_defconfig
endif
endif
</pre>

row 114
<pre>
ifeq ($(TARGET_PRODUCT), naon)
sgx: kernel_build ti81xx_kernel_modules
else
</pre>

row 125

<pre>
endif
</pre>

== Cleaning the build ==

To clean the build directory and repeat the process, just remove the '''out''' directory: 

<pre>
sudo rm -rf out
</pre>