2016-10-12 01:10:12 +01:00
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#
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# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# Neither the name of ARM nor the names of its contributors may be used
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# to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# Cross Compile
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M0_CROSS_COMPILE ?= arm-none-eabi-
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# Build architecture
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ARCH := cortex-m0
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# Build platform
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PLAT_M0 ?= rk3399m0
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ifeq (${V},0)
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Q=@
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else
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Q=
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endif
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export Q
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.SUFFIXES:
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2016-10-26 14:25:26 +01:00
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INCLUDES += -Iinclude/ \
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-I../../include/shared/
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2016-10-12 01:10:12 +01:00
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# NOTE: Add C source files here
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C_SOURCES := src/startup.c \
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2016-10-26 14:25:26 +01:00
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src/main.c \
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src/suspend.c \
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2016-11-30 08:57:08 +00:00
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src/dram.c \
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src/stopwatch.c
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2016-10-12 01:10:12 +01:00
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# Flags definition
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2017-01-31 00:13:21 +00:00
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COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft
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CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common
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ASFLAGS := -Wa,--gdwarf-2
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LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none
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2016-10-12 01:10:12 +01:00
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# Cross tool
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CC := ${M0_CROSS_COMPILE}gcc
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CPP := ${M0_CROSS_COMPILE}cpp
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AR := ${M0_CROSS_COMPILE}ar
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OC := ${M0_CROSS_COMPILE}objcopy
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OD := ${M0_CROSS_COMPILE}objdump
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NM := ${M0_CROSS_COMPILE}nm
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# NOTE: The line continuation '\' is required in the next define otherwise we
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# end up with a line-feed characer at the end of the last c filename.
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# Also bare this issue in mind if extending the list of supported filetypes.
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define SOURCES_TO_OBJS
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$(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \
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$(notdir $(patsubst %.S,%.o,$(filter %.S,$(1))))
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endef
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SOURCES := $(C_SOURCES)
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2016-11-01 02:18:47 +00:00
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OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES)))
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2016-10-26 14:25:26 +01:00
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LINKERFILE := $(BUILD)/$(PLAT_M0).ld
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2016-11-01 02:18:47 +00:00
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MAPFILE := $(BUILD)/$(PLAT_M0).map
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ELF := $(BUILD)/$(PLAT_M0).elf
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BIN := $(BUILD)/$(PLAT_M0).bin
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2016-10-26 14:25:26 +01:00
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LINKERFILE_SRC := src/$(PLAT_M0).ld.S
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2016-10-12 01:10:12 +01:00
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# Function definition related compilation
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define MAKE_C
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$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2))))
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2016-11-03 19:25:48 +00:00
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-include $(patsubst %.o,%.d,$(OBJ))
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2016-10-12 01:10:12 +01:00
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$(OBJ) : $(2)
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@echo " CC $$<"
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2017-01-31 00:13:21 +00:00
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$$(Q)$$(CC) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@
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2016-10-12 01:10:12 +01:00
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endef
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define MAKE_S
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$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2))))
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$(OBJ) : $(2)
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@echo " AS $$<"
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2017-01-31 00:13:21 +00:00
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$$(Q)$$(CC) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@
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2016-10-12 01:10:12 +01:00
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endef
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define MAKE_OBJS
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$(eval C_OBJS := $(filter %.c,$(2)))
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$(eval REMAIN := $(filter-out %.c,$(2)))
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$(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3))))
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$(eval S_OBJS := $(filter %.S,$(REMAIN)))
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$(eval REMAIN := $(filter-out %.S,$(REMAIN)))
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$(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3))))
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$(and $(REMAIN),$(error Unexpected source files present: $(REMAIN)))
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endef
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2016-10-26 14:25:26 +01:00
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.DEFAULT_GOAL := $(BIN)
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$(LINKERFILE): $(LINKERFILE_SRC)
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2017-01-31 00:13:21 +00:00
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$(CC) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $<
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2016-10-26 14:25:26 +01:00
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-include $(LINKERFILE).d
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2016-10-12 01:10:12 +01:00
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$(ELF) : $(OBJS) $(LINKERFILE)
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@echo " LD $@"
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2017-01-31 00:13:21 +00:00
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$(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS)
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2016-10-12 01:10:12 +01:00
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$(BIN) : $(ELF)
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@echo " BIN $@"
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$(Q)$(OC) -O binary $< $@
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2016-11-01 02:18:47 +00:00
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$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1)))
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