1# 2# Copyright (c) 2016-2024, Arm Limited and Contributors. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7include ../../../../../make_helpers/common.mk 8include ../../../../../make_helpers/toolchain.mk 9 10# Cross Compile 11M0_CROSS_COMPILE ?= arm-none-eabi- 12 13# Build architecture 14ARCH := cortex-m0 15 16# Build platform 17PLAT_M0 ?= rk3399m0 18PLAT_M0_PMU ?= rk3399m0pmu 19 20INCLUDES += -Iinclude/ \ 21 -I../../include/shared/ 22 23# NOTE: Add C source files here 24C_SOURCES_COMMON := src/startup.c 25C_SOURCES := src/dram.c \ 26 src/stopwatch.c 27C_SOURCES_PMU := src/suspend.c 28 29# Flags definition 30COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 31CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 32ASFLAGS := -Wa,--gdwarf-2 33LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none 34 35# NOTE: The line continuation '\' is required in the next define otherwise we 36# end up with a line-feed characer at the end of the last c filename. 37# Also bare this issue in mind if extending the list of supported filetypes. 38define SOURCES_TO_OBJS 39 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 40 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 41endef 42 43SOURCES_COMMON := $(C_SOURCES_COMMON) 44SOURCES := $(C_SOURCES) 45SOURCES_PMU := $(C_SOURCES_PMU) 46OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 47OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 48OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 49LINKERFILE := $(BUILD)/$(PLAT_M0).ld 50MAPFILE := $(BUILD)/$(PLAT_M0).map 51MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 52ELF := $(BUILD)/$(PLAT_M0).elf 53ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 54BIN := $(BUILD)/$(PLAT_M0).bin 55BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 56LINKERFILE_SRC := src/$(PLAT_M0).ld.S 57 58# Function definition related compilation 59define MAKE_C 60$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 61-include $(patsubst %.o,%.d,$(OBJ)) 62 63$(OBJ) : $(2) 64 $(s)echo " CC $$<" 65 $$(q)$(rk3399-m0-cc) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 66endef 67 68define MAKE_S 69$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 70 71$(OBJ) : $(2) 72 $(s)echo " AS $$<" 73 $$(q)$(rk3399-m0-cc) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 74endef 75 76define MAKE_OBJS 77 $(eval C_OBJS := $(filter %.c,$(2))) 78 $(eval REMAIN := $(filter-out %.c,$(2))) 79 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 80 81 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 82 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 83 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 84 85 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 86endef 87 88.PHONY: all 89all: $(BIN) $(BIN_PMU) 90 91.DEFAULT_GOAL := all 92 93$(LINKERFILE): $(LINKERFILE_SRC) 94 $(rk3399-m0-cc) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 95-include $(LINKERFILE).d 96 97$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 98 $(s)echo " LD $@" 99 $(q)$(rk3399-m0-cc) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 100 101%.bin : %.elf 102 $(s)echo " BIN $@" 103 $(q)$(rk3399-m0-oc) -O binary $< $@ 104 105$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 106 $(s)echo " LD $@" 107 $(q)$(rk3399-m0-cc) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 108 109$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 110$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 111$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 112