1# 2# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7# Cross Compile 8M0_CROSS_COMPILE ?= arm-none-eabi- 9 10# Build architecture 11ARCH := cortex-m0 12 13# Build platform 14PLAT_M0 ?= rk3399m0 15PLAT_M0_PMU ?= rk3399m0pmu 16 17ifeq (${V},0) 18 Q=@ 19else 20 Q= 21endif 22export Q 23 24.SUFFIXES: 25 26INCLUDES += -Iinclude/ \ 27 -I../../include/shared/ 28 29# NOTE: Add C source files here 30C_SOURCES_COMMON := src/startup.c 31C_SOURCES := src/dram.c \ 32 src/stopwatch.c 33C_SOURCES_PMU := src/suspend.c 34 35# Flags definition 36COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 37CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 38ASFLAGS := -Wa,--gdwarf-2 39LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none 40 41# Cross tool 42CC := ${M0_CROSS_COMPILE}gcc 43CPP := ${M0_CROSS_COMPILE}cpp 44AR := ${M0_CROSS_COMPILE}ar 45OC := ${M0_CROSS_COMPILE}objcopy 46OD := ${M0_CROSS_COMPILE}objdump 47NM := ${M0_CROSS_COMPILE}nm 48 49# NOTE: The line continuation '\' is required in the next define otherwise we 50# end up with a line-feed characer at the end of the last c filename. 51# Also bare this issue in mind if extending the list of supported filetypes. 52define SOURCES_TO_OBJS 53 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 54 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 55endef 56 57SOURCES_COMMON := $(C_SOURCES_COMMON) 58SOURCES := $(C_SOURCES) 59SOURCES_PMU := $(C_SOURCES_PMU) 60OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 61OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 62OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 63LINKERFILE := $(BUILD)/$(PLAT_M0).ld 64MAPFILE := $(BUILD)/$(PLAT_M0).map 65MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 66ELF := $(BUILD)/$(PLAT_M0).elf 67ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 68BIN := $(BUILD)/$(PLAT_M0).bin 69BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 70LINKERFILE_SRC := src/$(PLAT_M0).ld.S 71 72# Function definition related compilation 73define MAKE_C 74$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 75-include $(patsubst %.o,%.d,$(OBJ)) 76 77$(OBJ) : $(2) 78 @echo " CC $$<" 79 $$(Q)$$(CC) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 80endef 81 82define MAKE_S 83$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 84 85$(OBJ) : $(2) 86 @echo " AS $$<" 87 $$(Q)$$(CC) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 88endef 89 90define MAKE_OBJS 91 $(eval C_OBJS := $(filter %.c,$(2))) 92 $(eval REMAIN := $(filter-out %.c,$(2))) 93 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 94 95 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 96 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 97 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 98 99 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 100endef 101 102.PHONY: all 103all: $(BIN) $(BIN_PMU) 104 105.DEFAULT_GOAL := all 106 107$(LINKERFILE): $(LINKERFILE_SRC) 108 $(CC) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 109-include $(LINKERFILE).d 110 111$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 112 @echo " LD $@" 113 $(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 114 115%.bin : %.elf 116 @echo " BIN $@" 117 $(Q)$(OC) -O binary $< $@ 118 119$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 120 @echo " LD $@" 121 $(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 122 123$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 124$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 125$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 126