mirror of
https://github.com/IcedRooibos/py32f0-template.git
synced 2025-10-28 16:32:05 -07:00
114 lines
3.3 KiB
Makefile
114 lines
3.3 KiB
Makefile
# 'make V=1' will show all compiler calls.
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V ?= 0
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ifeq ($(V),0)
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Q := @
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NULL := 2>/dev/null
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endif
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PREFIX ?= $(ARM_TOOCHAIN)/arm-none-eabi-
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CC = $(PREFIX)gcc
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AS = $(PREFIX)as
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LD = $(PREFIX)ld
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OBJCOPY = $(PREFIX)objcopy
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# `$(shell pwd)` or `.`, both works
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TOP = .
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BDIR = $(TOP)/$(BUILD_DIR)
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# For each direcotry, add it to csources
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CSOURCES := $(foreach dir, $(CDIRS), $(shell find $(TOP)/$(dir) -name '*.c'))
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# Add single c source files to csources
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CSOURCES += $(addprefix $(TOP)/, $(CFILES))
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# Then assembly source folders and files
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ASOURCES := $(foreach dir, $(ADIRS), $(shell find $(TOP)/$(dir) -name '*.s'))
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ASOURCES += $(addprefix $(TOP)/, $(AFILES))
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# Fill object files with c and asm files (keep source directory structure)
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OBJS = $(CSOURCES:$(TOP)/%.c=$(BDIR)/%.o)
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OBJS += $(ASOURCES:$(TOP)/%.s=$(BDIR)/%.o)
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# d files for detecting h file changes
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DEPS=$(CSOURCES:$(TOP)/%.c=$(BDIR)/%.d)
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# Global compile flags
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CFLAGS = -Wall -ggdb -ffunction-sections -fdata-sections
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ASFLAGS = -g -Wa,--warn
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# Arch and target specified flags
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OPT ?= -Os
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CSTD ?= -std=c99
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ARCH_FLAGS := -fno-common -mcpu=cortex-m0plus -mthumb
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### c flags ###
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TGT_CFLAGS += $(ARCH_FLAGS) $(addprefix -D, $(LIB_FLAGS))
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### asm flags ###
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TGT_ASFLAGS += $(ARCH_FLAGS)
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### ld flags ###
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TGT_LDFLAGS += --specs=nosys.specs -mcpu=cortex-m0plus -mthumb -Wl,--gc-sections -Wl,-Map=$(BDIR)/$(PROJECT).map -Wl,--print-memory-usage
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# Use newlib-nano instead of newlib for smaller flash size
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TGT_LDFLAGS += --specs=nano.specs
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# Exclude standard initialization actions, when __libc_init_array exists, this should be omit, \
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otherwise it will generate "undefined reference to `_init'" error. \
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**Remove** `bl __libc_init_array` from startup.s if you want to enable this.
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# TGT_LDFLAGS += -nostartfiles
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### included paths ###
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TGT_INCFLAGS := $(addprefix -I $(TOP)/, $(INCLUDES))
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.PHONY: all clean flash echo
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all: $(BDIR)/$(PROJECT).elf $(BDIR)/$(PROJECT).bin $(BDIR)/$(PROJECT).hex
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# for debug
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echo:
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$(info 1. $(AFILES))
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$(info 2. $(ASOURCES))
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$(info 3. $(CSOURCES))
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$(info 4. $(OBJS))
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$(info 5. $(TGT_INCFLAGS))
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# include d files without non-exist warning
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-include $(DEPS)
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# Compile c to obj -- should be `$(BDIR)/%.o: $(TOP)/%.c`, but since $(TOP) is base folder so non-path also works
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$(BDIR)/%.o: %.c
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@printf " CC\t$<\n"
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@mkdir -p $(dir $@)
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$(Q)$(CC) $(TGT_CFLAGS) $(OPT) $(CFLAGS) $(TGT_INCFLAGS) -MT $@ -MMD -MP -MF $(BDIR)/$*.d -o $@ -c $<
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# Compile asm to obj
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$(BDIR)/%.o: %.s
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@printf " AS\t$<\n"
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@mkdir -p $(dir $@)
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$(Q)$(CC) $(TGT_ASFLAGS) $(ASFLAGS) -o $@ -c $<
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# Link object files to elf
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$(BDIR)/$(PROJECT).elf: $(OBJS) $(TOP)/$(LDSCRIPT)
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@printf " LD\t$@\n"
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$(Q)$(CC) $(OBJS) $(TGT_LDFLAGS) -T$(TOP)/$(LDSCRIPT) -o $@
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# Convert elf to bin
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%.bin: %.elf
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@printf " OBJCP BIN\t$@\n"
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$(Q)$(OBJCOPY) -I elf32-littlearm -O binary $< $@
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# Convert elf to hex
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%.hex: %.elf
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@printf " OBJCP HEX\t$@\n"
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$(Q)$(OBJCOPY) -I elf32-littlearm -O ihex $< $@
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clean:
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rm -rf $(BDIR)/*
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flash:
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ifeq ($(FLASH_PROGRM),jlink)
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$(JLINKEXE) -device $(JLINK_DEVICE) -if swd -speed 4000 -CommanderScript $(TOP)/Misc/flash.jlink
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else ifeq ($(FLASH_PROGRM),pyocd)
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$(PYOCD_EXE) erase -t $(PYOCD_DEVICE) --chip --config $(TOP)/Misc/pyocd.yaml
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$(PYOCD_EXE) load $(BDIR)/$(PROJECT).hex -t $(PYOCD_DEVICE) --config $(TOP)/Misc/pyocd.yaml
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else
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@echo "FLASH_PROGRM is invalid\n"
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endif
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