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# Build architecture 12ARCH := rk3399-m0 13 14# Build platform 15PLAT_M0 ?= rk3399m0 16PLAT_M0_PMU ?= rk3399m0pmu 17 18.SUFFIXES: 19 20INCLUDES += -Iinclude/ \ 21 -I../../include/shared/ 22 23# NOTE: Add C source files here 24C_SOURCES_COMMON := src/startup.c 25C_SOURCES := src/dram.c \ 26 src/stopwatch.c 27C_SOURCES_PMU := src/suspend.c 28 29# Flags definition 30COMMON_FLAGS := -g -mcpu=cortex-m0 -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft 31CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common 32# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523 33CFLAGS += $(call cc_option, --param=min-pagesize=0) 34ASFLAGS := -Wa,--gdwarf-2 35LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none -z noexecstack 36LDFLAGS += $(call ld_option,-Xlinker --no-warn-rwx-segments) 37 38# NOTE: The line continuation '\' is required in the next define otherwise we 39# end up with a line-feed characer at the end of the last c filename. 40# Also bare this issue in mind if extending the list of supported filetypes. 41define SOURCES_TO_OBJS 42 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 43 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 44endef 45 46SOURCES_COMMON := $(C_SOURCES_COMMON) 47SOURCES := $(C_SOURCES) 48SOURCES_PMU := $(C_SOURCES_PMU) 49OBJS_COMMON := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_COMMON))) 50OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) 51OBJS_PMU := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES_PMU))) 52LINKERFILE := $(BUILD)/$(PLAT_M0).ld 53MAPFILE := $(BUILD)/$(PLAT_M0).map 54MAPFILE_PMU := $(BUILD)/$(PLAT_M0_PMU).map 55ELF := $(BUILD)/$(PLAT_M0).elf 56ELF_PMU := $(BUILD)/$(PLAT_M0_PMU).elf 57BIN := $(BUILD)/$(PLAT_M0).bin 58BIN_PMU := $(BUILD)/$(PLAT_M0_PMU).bin 59LINKERFILE_SRC := src/$(PLAT_M0).ld.S 60 61# Function definition related compilation 62define MAKE_C 63$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 64-include $(patsubst %.o,%.d,$(OBJ)) 65 66$(OBJ) : $(2) 67 $(s)echo " CC $$<" 68 $$(q)$($(ARCH)-cc) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ 69endef 70 71define MAKE_S 72$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 73 74$(OBJ) : $(2) 75 $(s)echo " AS $$<" 76 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ 77endef 78 79define MAKE_OBJS 80 $(eval C_OBJS := $(filter %.c,$(2))) 81 $(eval REMAIN := $(filter-out %.c,$(2))) 82 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 83 84 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 85 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 86 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 87 88 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 89endef 90 91.PHONY: all 92all: $(BIN) $(BIN_PMU) 93 94.DEFAULT_GOAL := all 95 96$(LINKERFILE): $(LINKERFILE_SRC) 97 $($(ARCH)-cc) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< 98-include $(LINKERFILE).d 99 100$(ELF) : $(OBJS) $(OBJS_COMMON) $(LINKERFILE) 101 $(s)echo " LD $@" 102 $(q)$($(ARCH)-ld) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) $(OBJS_COMMON) 103 104%.bin : %.elf 105 $(s)echo " BIN $@" 106 $(q)$($(ARCH)-oc) -O binary $< $@ 107 108$(ELF_PMU) : $(OBJS_COMMON) $(OBJS_PMU) $(LINKERFILE) 109 $(s)echo " LD $@" 110 $(q)$($(ARCH)-ld) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE_PMU) -Wl,-T$(LINKERFILE) $(OBJS_PMU) $(OBJS_COMMON) 111 112$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_COMMON),$(1))) 113$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) 114$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES_PMU),$(1))) 115