build: Inline kernel building as a buildtime task

Kernel image integration is now done in the build system. The
"one true way" of doing this is to download the kernel source
into kernel/TARGET_BOOTLOADER_NAME (by usage of the cm.dependencies
mechanism or otherwise), and defining the TARGET_KERNEL_CONFIG
variable in the device's BoardConfig makefile

If the kernel's location doesn't match the automagic location
(multi-device kernel source, for instance), TARGET_KERNEL_SOURCE
can be used to specify a kernel path (i.e.,
"TARGET_KERNEL_SOURCE := kernel/shared-whatever")

If the device requires out-of-kernel-tree modules to be built,
the TARGET_KERNEL_MODULES variable can be used, pointing to a
_make target_ that will build and install such modules. Definition
of such a target is the device author's responsibility, the only
restriction is that it is a normal makefile recipe (example
below)

Optionally (or as an alternative), a prebuilt binary can also be
defined at BoardConfig, by usage of the TARGET_PREBUILT_KERNEL
variable. This binary will be used if the kernel source is absent
(or undefined).

A minimal BoardConfig.mk should look something like this:

TARGET_KERNEL_CONFIG := cyanogenmod_<device>_defconfig
TARGET_PREBUILT_KERNEL := device/<vendor>/<device>/kernel

To include, for example, the TI WLAN modules, this can be used:

-----------------------------
TIWLAN_MODULES:
       make -C hardware/ti/wlan/wl1283/platforms/os/linux/ KERNEL_DIR=$(KERNEL_OUT) ARCH="arm" CROSS_COMPILE="arm-eabi-" TNETW=1273 RANDOM_MAC=n REPORT_LOG=n
       mv hardware/ti/wlan/wl1283/platforms/os/linux/tiwlan_drv.ko $(KERNEL_MODULES_OUT)
       make -C hardware/ti/wlan/wl1283_softAP/platforms/os/linux/ KERNEL_DIR=$(KERNEL_OUT) ARCH="arm" CROSS_COMPILE="arm-eabi-" TNETW=1273 REPORT_LOG=n
       mv hardware/ti/wlan/wl1283_softAP/platforms/os/linux/tiap_drv.ko $(KERNEL_MODULES_OUT)

TARGET_KERNEL_MODULES := TIWLAN_MODULES
---------------------------

Change-Id: I8634fa4c788a42dc6f62e62ca170825b66db126a
build: Fix kernel module building on Darwin/OSX

Darwin/OSX build host does not have module-init-tools which is
required to generated modules.dep file. Switch to modules.order
file marker which is always generated instead.

Change-Id: I20c0fccd905fa668202c3e7284a8778db3728a65
kernel: Change path to kernel/<vendor>/<device>

Derive the kernel path from the device's own path (just replace "device"
with "kernel")

Change-Id: Idd44a0489e1ce280adf5ec4d9cfe2385c75dd115
kernel: Improve support for non-arm architectures

Remove hardwired references to the ARM arch and toolchains, and replace
them with the respective android build variables

Change-Id: Iae3eb548ca1d58ac808b5fa430d415283a809106
kernel: Fix ARM building

The default android ARM compiler, arm-androideabi-, does NOT work
for the Linux kernel. Special-case the ARM architecture to target
the ARM_EABI_TOOLCHAIN path directly

Change-Id: Ib672c99f114cb89d5fda3343d4dc68810d042d35
kernel: allow TARGET_KERNEL_MODULES to overwrite kernel modules

This is necessary to use compat-wireless since it needs to build a newer
version of cfg80211 (and sometimes mac80211) than the kernel sources version.
There are probably other instances of this type of need.

Change-Id: Ib5bf818286bc20987d8b9f9480a43f3e7690e239
Add initial support for charge mode. also support recovery/root in the device tree to easily copy props into recovery images.

Change-Id: Icf773a49f2802e3b287b970a390339f1ba0c7aad
fix rc file for charge mode

Change-Id: I62d881228bf309409a994d45f878d9ff331f93c1
kernel.mk: make use of ccache when requested

Change-Id: I9b6e28711bd5f590a76ac2b62a50b1d2de014e3e
kernel: Fix ccache inclusion logic

Builds were broken when CCACHE was missing from the environment
Change-Id: Ie8d6048f4600f1dc9c298593a50e37af04b96438
build: show accurate information on inline kernel warnings/errors

Having the variables on AndroidBoard as suggested causes errors
with mm/mmm, whereas having them on BoardConfig doesn't. Adjust
the warnings to reflect this.

Change-Id: I554c1f1073df678d36521f73bc236a1f4b02212e
new variable TARGET_RECOVERY_FSTAB

Currently the source file recovery.fstab has to be located
in $(TARGET_DEVICE_DIR)/recovery.fstab).

To allow multiple similar CM products to share one recovery.fstab
file this patch introduces the variable TARGET_RECOVERY_FSTAB.

Change-Id: I51961f5a1665023001c9857e13008a2ca44529ee
releasetools: Add support for BML partition type

Needed for Samsung devices using proprietary FSR drivers.
Backported from gingerbread branch.

Change-Id: I59f9da9c4832f791f2e126257d2ed777d6104ad8
Kernel makefiles that the stat on the system is GNU stat. GNU stat uses the "-c" option to specify format.
Darwin stat uses the "-f" option to specify format. This discrepency will cause kernel build breaks.
On my system, I symlink stat to GNU stat. This causes the "get-file-size" define
to fail.
The fix for this is to detect "gstat", aka GNU stat, and use that appropriately.

Change-Id: I987c155b7dc3ff14ffe6da40edf834ca34b7df75
add unpackbootimg to otatools

Change-Id: I4e294c05eacc8bef8273247bcf1bf382291a3d31
This is causing generic_armv5-userdebug builds to fail. Commenting out for now to fix recovery build servers. Will fix properly later.

Change-Id: Ibe1cda8cd2b4c1914dfa3b8a29724c9069e047a6
echo args

Change-Id: Ib346a27d94ccab3e992fe3bc3be9e0010e7b89a0
Does not copy anything

Change-Id: Ic11859144c9ba226312fd70fb5697d43d49c1e7d
Fix up the get-file-size function that was broken due to the prior commit that made it utilize gnu stat (gstat)

Change-Id: I24bba2bfcb509ad1ad76d2260eedd685ba45c393
kernel.mk: Also search PRODUCT_COPY_FILES for the kernel copy, as that is how AOSP does it now.

Change-Id: Id2d1cf079694d1996d4a85d8435c2e4562e5d444