1# 2# Copyright (c) 2016-2024, Arm Limited and Contributors. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7toolchains := rk3399-m0 8 9include ../../../../../make_helpers/toolchain.mk 10 11# Cross Compile 12M0_CROSS_COMPILE ?= arm-none-eabi- 13 14# Build architecture 15ARCH := cortex-m0 16 17# Build platform 18PLAT_M0 ?= rk3399m0 19PLAT_M0_PMU ?= rk3399m0pmu 20 21ifeq (${V},0) 22 Q=@ 23else 24 Q= 25endif 26export Q 27 28.SUFFIXES: 29 30INCLUDES += -Iinclude/ \ 31 -I../../include/shared/ 32 33# NOTE: Add C source files here 34C_SOURCES_COMMON := src/startup.c 35C_SOURCES := src/dram.c \ 36 src/stopwatch.c 37C_SOURCES_PMU := src/suspend.c 38 39# Flags definition 40COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 41CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 42ASFLAGS := -Wa,--gdwarf-2 43LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none 44 45# Cross tool 46CC := ${M0_CROSS_COMPILE}gcc 47CPP := ${M0_CROSS_COMPILE}gcc -E 48AR := ${M0_CROSS_COMPILE}gcc-ar 49OC := ${M0_CROSS_COMPILE}objcopy 50OD := ${M0_CROSS_COMPILE}objdump 51 52# NOTE: The line continuation '\' is required in the next define otherwise we 53# end up with a line-feed characer at the end of the last c filename. 54# Also bare this issue in mind if extending the list of supported filetypes. 55define SOURCES_TO_OBJS 56 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 57 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 58endef 59 60SOURCES_COMMON := $(C_SOURCES_COMMON) 61SOURCES := $(C_SOURCES) 62SOURCES_PMU := $(C_SOURCES_PMU) 63OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 64OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 65OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 66LINKERFILE := $(BUILD)/$(PLAT_M0).ld 67MAPFILE := $(BUILD)/$(PLAT_M0).map 68MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 69ELF := $(BUILD)/$(PLAT_M0).elf 70ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 71BIN := $(BUILD)/$(PLAT_M0).bin 72BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 73LINKERFILE_SRC := src/$(PLAT_M0).ld.S 74 75# Function definition related compilation 76define MAKE_C 77$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 78-include $(patsubst %.o,%.d,$(OBJ)) 79 80$(OBJ) : $(2) 81 @echo " CC $$<" 82 $$(Q)$$(CC) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 83endef 84 85define MAKE_S 86$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 87 88$(OBJ) : $(2) 89 @echo " AS $$<" 90 $$(Q)$$(CC) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 91endef 92 93define MAKE_OBJS 94 $(eval C_OBJS := $(filter %.c,$(2))) 95 $(eval REMAIN := $(filter-out %.c,$(2))) 96 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 97 98 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 99 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 100 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 101 102 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 103endef 104 105.PHONY: all 106all: $(BIN) $(BIN_PMU) 107 108.DEFAULT_GOAL := all 109 110$(LINKERFILE): $(LINKERFILE_SRC) 111 $(CC) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 112-include $(LINKERFILE).d 113 114$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 115 @echo " LD $@" 116 $(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 117 118%.bin : %.elf 119 @echo " BIN $@" 120 $(Q)$(OC) -O binary $< $@ 121 122$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 123 @echo " LD $@" 124 $(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 125 126$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 127$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 128$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 129