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#
# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Cross Compile
M0_CROSS_COMPILE ?= arm-none-eabi-
# Build architecture
ARCH := cortex-m0
# Build platform
PLAT_M0 ?= rk3399m0
PLAT_M0_PMU ?= rk3399m0pmu
ifeq (${V},0)
Q=@
else
Q=
endif
export Q
.SUFFIXES:
INCLUDES += -Iinclude/ \
-I../../include/shared/
# NOTE: Add C source files here
C_SOURCES_COMMON := src/startup.c
C_SOURCES := src/dram.c \
src/stopwatch.c
C_SOURCES_PMU := src/suspend.c
# Flags definition
COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft
CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common
ASFLAGS := -Wa,--gdwarf-2
LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none
# Cross tool
CC := ${M0_CROSS_COMPILE}gcc
CPP := ${M0_CROSS_COMPILE}cpp
AR := ${M0_CROSS_COMPILE}ar
OC := ${M0_CROSS_COMPILE}objcopy
OD := ${M0_CROSS_COMPILE}objdump
NM := ${M0_CROSS_COMPILE}nm
# NOTE: The line continuation '\' is required in the next define otherwise we
# end up with a line-feed characer at the end of the last c filename.
# Also bare this issue in mind if extending the list of supported filetypes.
define SOURCES_TO_OBJS
$(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \
$(notdir $(patsubst %.S,%.o,$(filter %.S,$(1))))
endef
SOURCES_COMMON := $(C_SOURCES_COMMON)
SOURCES := $(C_SOURCES)
SOURCES_PMU := $(C_SOURCES_PMU)
OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON)))
OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES)))
OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU)))
LINKERFILE := $(BUILD)/$(PLAT_M0).ld
MAPFILE := $(BUILD)/$(PLAT_M0).map
MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map
ELF := $(BUILD)/$(PLAT_M0).elf
ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf
BIN := $(BUILD)/$(PLAT_M0).bin
BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin
LINKERFILE_SRC := src/$(PLAT_M0).ld.S
# Function definition related compilation
define MAKE_C
$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2))))
-include $(patsubst %.o,%.d,$(OBJ))
$(OBJ) : $(2)
@echo " CC $$<"
$$(Q)$$(CC) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@
endef
define MAKE_S
$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2))))
$(OBJ) : $(2)
@echo " AS $$<"
$$(Q)$$(CC) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@
endef
define MAKE_OBJS
$(eval C_OBJS := $(filter %.c,$(2)))
$(eval REMAIN := $(filter-out %.c,$(2)))
$(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3))))
$(eval S_OBJS := $(filter %.S,$(REMAIN)))
$(eval REMAIN := $(filter-out %.S,$(REMAIN)))
$(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3))))
$(and $(REMAIN),$(error Unexpected source files present: $(REMAIN)))
endef
.PHONY: all
all: $(BIN) $(BIN_PMU)
.DEFAULT_GOAL := all
$(LINKERFILE): $(LINKERFILE_SRC)
$(CC) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $<
-include $(LINKERFILE).d
$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE)
@echo " LD $@"
$(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON)
%.bin : %.elf
@echo " BIN $@"
$(Q)$(OC) -O binary $< $@
$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE)
@echo " LD $@"
$(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON)
$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1)))
$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1)))
$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1)))
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