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include ../../buildenv.mk

OMP_DIR = openmp_code
LIBOMP = $(OMP_DIR)/final/build/runtime/src/libomp.a

OMP_CONFIG = -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER_WORKS=TRUE -DCMAKE_CXX_COMPILER_WORKS=TRUE
ifdef DEBUG
	OMP_CONFIG = -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER_WORKS=TRUE -DCMAKE_CXX_COMPILER_WORKS=TRUE
endif
ENC_CXXFLAGS = $(patsubst -fpie, -fpic, $(ENCLAVE_CXXFLAGS))
OMP_CONFIG += -DCMAKE_CXX_FLAGS="$(ENC_CXXFLAGS)"

CHECK_SOURCE :=
ifeq ("$(wildcard $(OMP_DIR)/final)", "")
CHECK_SOURCE := omp_code
endif

.PHONY: all
all: $(LIBOMP) | $(BUILD_DIR)
	@$(CP) $(LIBOMP) $(BUILD_DIR)/libsgx_omp.a


$(BUILD_DIR):
	@$(MKDIR) $@

.PHONY: omp_code
omp_code:
## Need to enable below code when release
#ifeq ($(shell git rev-parse --is-inside-work-tree 2> /dev/null), true)
#	git submodule update -f --init --recursive --remote -- $(OMP_DIR)
#else
	$(RM) -rf openmp_code
	git clone -b svn-tags/RELEASE_801  https://github.com/llvm-mirror/openmp.git --depth 1 $(OMP_DIR)
#endif


$(LIBOMP): $(CHECK_SOURCE)
ifeq ("$(wildcard $(OMP_DIR)/final/runtime/src/sgx_stub.h)", "")
	cd openmp_code && git apply ../0001-Enable-OpenMP-in-SGX.patch && cd ..
endif
	$(MKDIR) openmp_code/final/build && cd openmp_code/final/build && cmake $(OMP_CONFIG) .. && make 


.PHONY: clean
clean:
	$(RM) -rf openmp_code/final/build $(BUILD_DIR)/libsgx_omp.a

.PHONY: rebuild
rebuild:
	 $(MAKE) clean
	 $(MAKE) all