circuitpython/zephyr/Makefile
Daniel Thompson 2ea52cb045 zephyr: Automatically derive ARCH.
Currently to compile for anything that except ARCH=x86 we have to
provide ARCH via the environment or make arguments. We can do better
than that!

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2016-10-10 01:44:23 +03:00

78 lines
2.2 KiB
Makefile

#
# This is main Makefile, which uses MicroPython build system, but
# Zephyr arch-specific toolchain (setup by Zephyr's Makefile.toolchain.*).
# Unfortunately, it's currently not possible to get target (as in: specific
# board to run on) specific compile-time options from Zephyr, so these must
# be set (duplicated) in this Makefile. Currently, these configured for
# ARM Cortex-M3. This Makefile builds MicroPython as a library, and then
# calls recursively Makefile.zephyr to build complete application using
# Zephyr build system.
#
BOARD ?= qemu_x86
# Zephyr 1.5.0
#OUTDIR_PREFIX =
# Zephyr 1.6.0
OUTDIR_PREFIX = $(BOARD)
Z_DOTCONFIG = outdir/$(OUTDIR_PREFIX)/.config
DQUOTE = "
# "
include $(Z_DOTCONFIG)
override ARCH = $(subst $(DQUOTE),,$(CONFIG_ARCH))
# Zephyr toolchain config is 2-pass, so included twice
include $(ZEPHYR_BASE)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
include $(ZEPHYR_BASE)/scripts/Makefile.toolchain.$(ZEPHYR_GCC_VARIANT)
CFLAGS_arm = -mthumb -mcpu=cortex-m3 -mabi=aapcs
CFLAGS_x86 = -fno-asynchronous-unwind-tables -ffreestanding -fno-stack-protector \
-fno-omit-frame-pointer -mpreferred-stack-boundary=2 -mno-sse -march=pentium
CFLAGS_TARGET = $(CFLAGS_$(ARCH))
include ../py/mkenv.mk
include ../py/py.mk
INC += -I.
INC += -I..
INC += -I$(BUILD)
INC += -I$(ZEPHYR_BASE)/include -I$(ZEPHYR_BASE) \
-Ioutdir/$(OUTDIR_PREFIX)/misc/generated/sysgen \
-I$(dir $(Z_AUTOCONF_H))
SRC_C = main.c \
uart_core.c \
lib/utils/stdout_helpers.c \
lib/utils/printf.c \
lib/utils/pyexec.c \
lib/mp-readline/readline.c \
$(SRC_MOD)
OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
COPT = -Os -DNDEBUG -fdata-sections -ffunction-sections
CFLAGS = -std=gnu99 $(TOOLCHAIN_CFLAGS) $(INC) $(CFLAGS_MOD) $(COPT) $(CFLAGS_TARGET)
include ../py/mkrules.mk
$(Z_DOTCONFIG):
$(MAKE) -f Makefile.zephyr BOARD=$(BOARD) initconfig
all: $(LIBMICROPYTHON)
$(MAKE) -f Makefile.zephyr BOARD=$(BOARD)
qemu: all
$(MAKE) -f Makefile.zephyr qemu BOARD=$(BOARD)
Z_AUTOCONF_H = outdir/$(OUTDIR_PREFIX)/include/generated/autoconf.h
$(LIBMICROPYTHON): $(Z_AUTOCONF_H)
build/genhdr/qstr.i.last: $(Z_AUTOCONF_H)
$(Z_AUTOCONF_H):
rm -f $(LIBMICROPYTHON)
-$(MAKE) -f Makefile.zephyr BOARD=$(BOARD)
# Clean Zephyr things too
CLEAN_EXTRA = outdir