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/build_macros.mk 9include ../../../../../make_helpers/toolchain.mk 10 11# Cross Compile 12M0_CROSS_COMPILE ?= arm-none-eabi- 13 14# Build architecture 15ARCH := rk3399-m0 16 17# Build platform 18PLAT_M0 ?= rk3399m0 19PLAT_M0_PMU ?= rk3399m0pmu 20 21.SUFFIXES: 22 23INCLUDES += -Iinclude/ \ 24 -I../../include/shared/ 25 26# NOTE: Add C source files here 27C_SOURCES_COMMON := src/startup.c 28C_SOURCES := src/dram.c \ 29 src/stopwatch.c 30C_SOURCES_PMU := src/suspend.c 31 32# Flags definition 33COMMON_FLAGS := -g -mcpu=cortex-m0 -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 34CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 35# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523 36CFLAGS += $(call cc_option, --param=min-pagesize=0) 37ASFLAGS := -Wa,--gdwarf-2 38LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none 39 40# NOTE: The line continuation '\' is required in the next define otherwise we 41# end up with a line-feed characer at the end of the last c filename. 42# Also bare this issue in mind if extending the list of supported filetypes. 43define SOURCES_TO_OBJS 44 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 45 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 46endef 47 48SOURCES_COMMON := $(C_SOURCES_COMMON) 49SOURCES := $(C_SOURCES) 50SOURCES_PMU := $(C_SOURCES_PMU) 51OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 52OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 53OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 54LINKERFILE := $(BUILD)/$(PLAT_M0).ld 55MAPFILE := $(BUILD)/$(PLAT_M0).map 56MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 57ELF := $(BUILD)/$(PLAT_M0).elf 58ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 59BIN := $(BUILD)/$(PLAT_M0).bin 60BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 61LINKERFILE_SRC := src/$(PLAT_M0).ld.S 62 63# Function definition related compilation 64define MAKE_C 65$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 66-include $(patsubst %.o,%.d,$(OBJ)) 67 68$(OBJ) : $(2) 69 $(s)echo " CC $$<" 70 $$(q)$($(ARCH)-cc) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 71endef 72 73define MAKE_S 74$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 75 76$(OBJ) : $(2) 77 $(s)echo " AS $$<" 78 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 79endef 80 81define MAKE_OBJS 82 $(eval C_OBJS := $(filter %.c,$(2))) 83 $(eval REMAIN := $(filter-out %.c,$(2))) 84 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 85 86 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 87 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 88 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 89 90 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 91endef 92 93.PHONY: all 94all: $(BIN) $(BIN_PMU) 95 96.DEFAULT_GOAL := all 97 98$(LINKERFILE): $(LINKERFILE_SRC) 99 $($(ARCH)-cc) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 100-include $(LINKERFILE).d 101 102$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 103 $(s)echo " LD $@" 104 $(q)$($(ARCH)-ld) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 105 106%.bin : %.elf 107 $(s)echo " BIN $@" 108 $(q)$($(ARCH)-oc) -O binary $< $@ 109 110$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 111 $(s)echo " LD $@" 112 $(q)$($(ARCH)-ld) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 113 114$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 115$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 116$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 117