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 20.SUFFIXES: 21 22INCLUDES += -Iinclude/ \ 23 -I../../include/shared/ 24 25# NOTE: Add C source files here 26C_SOURCES_COMMON := src/startup.c 27C_SOURCES := src/dram.c \ 28 src/stopwatch.c 29C_SOURCES_PMU := src/suspend.c 30 31# Flags definition 32COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 33CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 34ASFLAGS := -Wa,--gdwarf-2 35LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none 36 37# NOTE: The line continuation '\' is required in the next define otherwise we 38# end up with a line-feed characer at the end of the last c filename. 39# Also bare this issue in mind if extending the list of supported filetypes. 40define SOURCES_TO_OBJS 41 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 42 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 43endef 44 45SOURCES_COMMON := $(C_SOURCES_COMMON) 46SOURCES := $(C_SOURCES) 47SOURCES_PMU := $(C_SOURCES_PMU) 48OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 49OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 50OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 51LINKERFILE := $(BUILD)/$(PLAT_M0).ld 52MAPFILE := $(BUILD)/$(PLAT_M0).map 53MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 54ELF := $(BUILD)/$(PLAT_M0).elf 55ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 56BIN := $(BUILD)/$(PLAT_M0).bin 57BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 58LINKERFILE_SRC := src/$(PLAT_M0).ld.S 59 60# Function definition related compilation 61define MAKE_C 62$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 63-include $(patsubst %.o,%.d,$(OBJ)) 64 65$(OBJ) : $(2) 66 $(s)echo " CC $$<" 67 $$(q)$(rk3399-m0-cc) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 68endef 69 70define MAKE_S 71$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 72 73$(OBJ) : $(2) 74 $(s)echo " AS $$<" 75 $$(q)$(rk3399-m0-cc) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 76endef 77 78define MAKE_OBJS 79 $(eval C_OBJS := $(filter %.c,$(2))) 80 $(eval REMAIN := $(filter-out %.c,$(2))) 81 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 82 83 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 84 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 85 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 86 87 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 88endef 89 90.PHONY: all 91all: $(BIN) $(BIN_PMU) 92 93.DEFAULT_GOAL := all 94 95$(LINKERFILE): $(LINKERFILE_SRC) 96 $(rk3399-m0-cc) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 97-include $(LINKERFILE).d 98 99$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 100 $(s)echo " LD $@" 101 $(q)$(rk3399-m0-cc) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 102 103%.bin : %.elf 104 $(s)echo " BIN $@" 105 $(q)$(rk3399-m0-oc) -O binary $< $@ 106 107$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 108 $(s)echo " LD $@" 109 $(q)$(rk3399-m0-cc) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 110 111$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 112$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 113$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 114