########################################################################### ###
#@Title         Root kernel makefile
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### ###########################################################################

# This top-level kbuild makefile builds all the Linux kernel modules in the
# DDK. To run kbuild, this makefile is copied to $(TARGET_OUT)/kbuild/Makefile
# and make is invoked in $(TARGET_OUT)/kbuild.

# This makefile doesn't define any kbuild special variables apart from
# ccflags-y and obj-m. The variables for objects are picked up by including
# the kbuild makefile fragments named in $(INTERNAL_KBUILD_MAKEFILES). The
# list of objects that these fragments make is collected in
# $(INTERNAL_KBUILD_OBJECTS) and $(INTERNAL_EXTRA_KBUILD_OBJECTS). These
# variables are set according to the build's $(KERNEL_COMPONENTS) and
# $(EXTRA_PVRSRVKM_COMPONENTS). To add a new kernel module to the build, edit
# these variables in the per-build Makefile.

include $(OUT)/config_kernel.mk

.SECONDARY:

$(OUT)/target/kbuild/external/%.c: $(EXTRA_KBUILD_SOURCE)/%.c
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	@if [ ! -h $@ ]; then ln -sf $< $@; fi

$(OUT)/target/kbuild/%.c: $(TOP)/%.c
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	@if [ ! -h $@ ]; then ln -sf $< $@; fi

ccflags-y += -D__linux__ -include $(OUT)/config_kernel.h \
 -DDEBUG_LOG_PATH_TRUNCATE="\"$(OUT)/target/kbuild\"" \
 -I$(OUT)/include \
 -I$(TOP)/include4 \
 -I$(TOP)/services4/include \
 -I$(TOP)/services4/system/$(PVR_SYSTEM) \
 -I$(TOP)/services4/system/include \
 -I$(TOP)/services4/srvkm/bridged \
 -I$(TOP)/services4/srvkm/bridged/sgx \
 -I$(TOP)/services4/srvkm/common \
 -I$(TOP)/services4/srvkm/devices/sgx \
 -I$(TOP)/services4/srvkm/env/linux \
 -I$(TOP)/services4/srvkm/include

ifeq ($(PVR_LOCAL_HWDEFS),)
ccflags-y += -I$(TOP)/services4/srvkm/hwdefs
else
ccflags-y += -I$(TOP)/hwdefs
endif

include $(INTERNAL_KBUILD_MAKEFILES)

$(if $(pvrsrvkm_sgx$(SGXCORE)_$(SGX_CORE_REV)-y),,$(error pvrsrvkm_sgx$(SGXCORE)_$(SGX_CORE_REV)-y was empty, which could mean that srvkm is missing from $$(KERNEL_COMPONENTS)))
pvrsrvkm-y += $(foreach _m,$(INTERNAL_EXTRA_KBUILD_OBJECTS:.o=),$($(_m)-y))

obj-m += $(INTERNAL_KBUILD_OBJECTS)