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3c336ad170
Cortex-M processors only support Thumb instructions (no ARM mode code). Signed-off-by: Joakim Gebart <joakim.gebart@eistec.se>
57 lines
2.1 KiB
Makefile
57 lines
2.1 KiB
Makefile
## the cpu to build for
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export CPU = stm32l1
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export CPU_MODEL = stm32l152ret6
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#define the default port depending on the host OS
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OS := $(shell uname)
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ifeq ($(OS),Linux)
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PORT ?= /dev/ttyACM0
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else ifeq ($(OS),Darwin)
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PORT ?= $(shell ls -1 /dev/tty.SLAB_USBtoUART* | head -n 1)
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else
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$(info CAUTION: No flash tool for your host system found!)
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# TODO: add support for windows as host platform
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endif
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export PORT
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# define tools used for building the project
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export PREFIX = arm-none-eabi-
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export CC = $(PREFIX)gcc
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export CXX = $(PREFIX)g++
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export AR = $(PREFIX)ar
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export AS = $(PREFIX)as
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export LINK = $(PREFIX)gcc
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export SIZE = $(PREFIX)size
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export OBJCOPY = $(PREFIX)objcopy
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export TERMPROG = $(RIOTBASE)/dist/tools/pyterm/pyterm
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export FLASHER = $(RIOTBOARD)/$(BOARD)/dist/flash.sh
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export DEBUGGER = $(RIOTBOARD)/$(BOARD)/dist/debug.sh
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export DEBUGSERVER = $(RIOTBOARD)/$(BOARD)/dist/debug-server.sh
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export RESET = $(RIOTBOARD)/$(BOARD)/dist/reset.sh
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# unwanted (CXXUWFLAGS) and extra (CXXEXFLAGS) flags for c++
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export CXXUWFLAGS +=
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export CXXEXFLAGS +=
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# define build specific options
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export CPU_USAGE = -mcpu=cortex-m3
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export FPU_USAGE =
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export CFLAGS += -ggdb -g3 -std=gnu99 -Os -Wall -Wstrict-prototypes $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -mthumb -mno-thumb-interwork -nostartfiles
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export CFLAGS += -ffunction-sections -fdata-sections -fno-builtin
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export ASFLAGS += -ggdb -g3 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian
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export LINKFLAGS += -ggdb -g3 -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -static -lgcc -mthumb -mno-thumb-interwork -nostartfiles
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# $(LINKERSCRIPT) is specified in cpu/Makefile.include
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export LINKFLAGS += -T$(LINKERSCRIPT)
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export OFLAGS = -O binary
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export FFLAGS = $(HEXFILE)
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export DEBUGGER_FLAGS = $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)
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export TERMFLAGS += -p "$(PORT)"
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# use the nano-specs of the NewLib when available
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ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
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export LINKFLAGS += -specs=nano.specs -lc -lnosys
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endif
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# export board specific includes to the global includes-listing
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export INCLUDES += -I$(RIOTBOARD)/$(BOARD)/include/
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