Makefile

# Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
# Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
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include $(LITEOSTOPDIR)/config.mk

VDSO_SO = OHOS-vdso

VDSO_SRCS := los_vdso_sys.c
VDSO_INCLUDE := -I $(LITEOSTOPDIR)/kernel/extended/vdso/include \
                -I $(LITEOSTOPDIR)/kernel/include \
                -I $(LITEOSTOPDIR)/kernel/common \
                -I $(LITEOSTOPDIR)/bsd/compat/linuxkpi/include

VDSO_CCFLAGS := -nostdlib -fPIC $(LITEOS_SSP) $(LITEOS_CORE_COPTS) $(WARNING_AS_ERROR) $(LITEOS_COPTS_OPTMIZE)
ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
VDSO_CCFLAGS += $(LLVM_EXTRA_OPTS) --sysroot=$(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/
endif

VDSO_LDFLAGS := -shared -s -Bsymbolic -T los_vdso.ld

all: $(VDSO_SO)
$(VDSO_SO):
	$(HIDE)$(CC) $(VDSO_INCLUDE) $(VDSO_CCFLAGS) -c -o $@.o $(VDSO_SRCS)
	$(HIDE)$(LD) $(VDSO_LDFLAGS) -o $@.so $@.o

clean:
	$(HIDE)$(RM) -rf *.o *.so