diff options
Diffstat (limited to 'Makefile')
-rw-r--r-- | Makefile | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..b2dac4a --- /dev/null +++ b/Makefile @@ -0,0 +1,133 @@ +# +# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# +# Redistributions of source code must retain the above copyright notice, this +# list of conditions and the following disclaimer. +# +# Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# Neither the name of ARM nor the names of its contributors may be used +# to endorse or promote products derived from this software without specific +# prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# + +# Cross Compile +M0_CROSS_COMPILE ?= arm-none-eabi- + +# Build architecture +ARCH := cortex-m0 + +# Build platform +PLAT_M0 ?= rk3399m0 + +ifeq (${V},0) + Q=@ +else + Q= +endif +export Q + +.SUFFIXES: + +INCLUDES += -Iinclude/ \ + -I../../include/shared/ + +# NOTE: Add C source files here +C_SOURCES := src/startup.c \ + src/main.c \ + src/suspend.c \ + src/dram.c \ + src/stopwatch.c + +# Flags definition +COMMON_FLAGS := -g -mcpu=$(ARCH) -mthumb -Wall -O3 -nostdlib -mfloat-abi=soft +CFLAGS := -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-common +ASFLAGS := -Wa,--gdwarf-2 +LDFLAGS := -Wl,--gc-sections -Wl,--build-id=none + +# Cross tool +CC := ${M0_CROSS_COMPILE}gcc +CPP := ${M0_CROSS_COMPILE}cpp +AR := ${M0_CROSS_COMPILE}ar +OC := ${M0_CROSS_COMPILE}objcopy +OD := ${M0_CROSS_COMPILE}objdump +NM := ${M0_CROSS_COMPILE}nm + +# NOTE: The line continuation '\' is required in the next define otherwise we +# end up with a line-feed characer at the end of the last c filename. +# Also bare this issue in mind if extending the list of supported filetypes. +define SOURCES_TO_OBJS + $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ + $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) +endef + +SOURCES := $(C_SOURCES) +OBJS := $(addprefix $(BUILD)/,$(call SOURCES_TO_OBJS,$(SOURCES))) +LINKERFILE := $(BUILD)/$(PLAT_M0).ld +MAPFILE := $(BUILD)/$(PLAT_M0).map +ELF := $(BUILD)/$(PLAT_M0).elf +BIN := $(BUILD)/$(PLAT_M0).bin +LINKERFILE_SRC := src/$(PLAT_M0).ld.S + +# Function definition related compilation +define MAKE_C +$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) +-include $(patsubst %.o,%.d,$(OBJ)) + +$(OBJ) : $(2) + @echo " CC $$<" + $$(Q)$$(CC) $$(COMMON_FLAGS) $$(CFLAGS) $$(INCLUDES) -MMD -MT $$@ -c $$< -o $$@ +endef + +define MAKE_S +$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) + +$(OBJ) : $(2) + @echo " AS $$<" + $$(Q)$$(CC) -x assembler-with-cpp $$(COMMON_FLAGS) $$(ASFLAGS) -c $$< -o $$@ +endef + +define MAKE_OBJS + $(eval C_OBJS := $(filter %.c,$(2))) + $(eval REMAIN := $(filter-out %.c,$(2))) + $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) + + $(eval S_OBJS := $(filter %.S,$(REMAIN))) + $(eval REMAIN := $(filter-out %.S,$(REMAIN))) + $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) + + $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) +endef + +.DEFAULT_GOAL := $(BIN) + +$(LINKERFILE): $(LINKERFILE_SRC) + $(CC) $(COMMON_FLAGS) $(INCLUDES) -P -E -D__LINKER__ -MMD -MF $@.d -MT $@ -o $@ $< +-include $(LINKERFILE).d + +$(ELF) : $(OBJS) $(LINKERFILE) + @echo " LD $@" + $(Q)$(CC) -o $@ $(COMMON_FLAGS) $(LDFLAGS) -Wl,-Map=$(MAPFILE) -Wl,-T$(LINKERFILE) $(OBJS) + +$(BIN) : $(ELF) + @echo " BIN $@" + $(Q)$(OC) -O binary $< $@ + +$(eval $(call MAKE_OBJS,$(BUILD),$(SOURCES),$(1))) |