1# 2# Copyright (c) 2016-2025, 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# Build architecture 12ARCH := rk3399-m0 13 14# Build platform 15PLAT_M0 ?= rk3399m0 16PLAT_M0_PMU ?= rk3399m0pmu 17 18INCLUDES += -Iinclude/ \ 19 -I../../include/shared/ 20 21# NOTE: Add C source files here 22C_SOURCES_COMMON := src/startup.c 23C_SOURCES := src/dram.c \ 24 src/stopwatch.c 25C_SOURCES_PMU := src/suspend.c 26 27# Flags definition 28COMMON_FLAGS := -g -mcpu=cortex-m0 -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 29CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 30# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523 31CFLAGS += $(call cc_option, --param=min-pagesize=0) 32ASFLAGS := -Wa,--gdwarf-2 -Wa,--fatal-warnings 33LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none -Wl,--fatal-warnings -z noexecstack 34LDFLAGS += $(call ld_option,--no-warn-rwx-segments) 35 36# NOTE: The line continuation '\' is required in the next define otherwise we 37# end up with a line-feed characer at the end of the last c filename. 38# Also bare this issue in mind if extending the list of supported filetypes. 39define SOURCES_TO_OBJS 40 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 41 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 42endef 43 44SOURCES_COMMON := $(C_SOURCES_COMMON) 45SOURCES := $(C_SOURCES) 46SOURCES_PMU := $(C_SOURCES_PMU) 47OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 48OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 49OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 50LINKERFILE := $(BUILD)/$(PLAT_M0).ld 51MAPFILE := $(BUILD)/$(PLAT_M0).map 52MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 53ELF := $(BUILD)/$(PLAT_M0).elf 54ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 55BIN := $(BUILD)/$(PLAT_M0).bin 56BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 57LINKERFILE_SRC := src/$(PLAT_M0).ld.S 58 59# Function definition related compilation 60define MAKE_C 61$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 62-include $(patsubst %.o,%.d,$(OBJ)) 63 64$(OBJ) : $(2) 65 $(s)echo " CC $$<" 66 $$(q)$($(ARCH)-cc) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 67endef 68 69define MAKE_S 70$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 71 72$(OBJ) : $(2) 73 $(s)echo " AS $$<" 74 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 75endef 76 77define MAKE_OBJS 78 $(eval C_OBJS := $(filter %.c,$(2))) 79 $(eval REMAIN := $(filter-out %.c,$(2))) 80 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 81 82 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 83 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 84 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 85 86 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 87endef 88 89.PHONY: all 90all: $(BIN) $(BIN_PMU) 91 92.DEFAULT_GOAL := all 93 94$(LINKERFILE): $(LINKERFILE_SRC) 95 $(q)$($(ARCH)-cc) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 96-include $(LINKERFILE).d 97 98$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 99 $(s)echo " LD $@" 100 $(q)$($(ARCH)-ld) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 101 102$(BIN) $(BIN_PMU): %.bin: %.elf 103 $(s)echo " BIN $@" 104 $(q)$($(ARCH)-oc) -O binary $< $@ 105 106$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 107 $(s)echo " LD $@" 108 $(q)$($(ARCH)-ld) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 109 110$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 111$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 112$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 113