circuitpython/ports/atmel-samd/mpconfigport.mk
Jeff Epler 510890b207
Enable squeezing property storage in flash
.. and enable it on atmel-samd and raspberrypi. On trinket_m0 this saves
96 net bytes of flash. There are 216 bytes actually saved by reducing
the flash storage size of the property descriptors, but added code in
several paths takes back over half of the 'raw savings'.

By organizing the "get-only" and "get-set" (but no delete) properties
each in a different section, we can represent then more efficiently.

Testing performed: that a get-only property can still be gotten but
can't be set or deleted; that a get-set property can sill be gotten or
set but can't be deleted.  Tested on pygamer.

Because this requires linker file support, I only enabled it on two of
the ports.
2022-05-03 08:48:53 -05:00

129 lines
3.4 KiB
Makefile

# All linking can be done with this common templated linker script, which has
# parameters that vary based on chip and/or board.
LD_TEMPLATE_FILE = boards/common.template.ld
INTERNAL_LIBM = 1
# Number of USB endpoint pairs.
USB_NUM_ENDPOINT_PAIRS = 8
CIRCUITPY_ROTARYIO_SOFTENCODER = 1
CIRCUITPY_OPTIMIZE_PROPERTY_FLASH_SIZE ?= 1
######################################################################
# Put samd21-only choices here.
ifeq ($(CHIP_FAMILY),samd21)
# The ?='s allow overriding in mpconfigboard.mk.
# Some of these are on by default with CIRCUITPY_FULL_BUILD, but don't
# fit in 256kB of flash
CIRCUITPY_AESIO ?= 0
CIRCUITPY_ATEXIT ?= 0
CIRCUITPY_AUDIOMIXER ?= 0
CIRCUITPY_BINASCII ?= 0
CIRCUITPY_BITBANGIO ?= 0
CIRCUITPY_BITMAPTOOLS ?= 0
CIRCUITPY_BUSDEVICE ?= 0
CIRCUITPY_AUDIOMP3 ?= 0
CIRCUITPY_BLEIO_HCI = 0
CIRCUITPY_BUILTINS_POW3 ?= 0
CIRCUITPY_COMPUTED_GOTO_SAVE_SPACE ?= 1
CIRCUITPY_COUNTIO ?= 0
# Not enough RAM for framebuffers
CIRCUITPY_FRAMEBUFFERIO ?= 0
CIRCUITPY_FREQUENCYIO ?= 0
CIRCUITPY_GETPASS ?= 0
CIRCUITPY_GIFIO ?= 0
CIRCUITPY_I2CPERIPHERAL ?= 0
CIRCUITPY_JSON ?= 0
CIRCUITPY_KEYPAD ?= 0
CIRCUITPY_MSGPACK ?= 0
CIRCUITPY_RE ?= 0
CIRCUITPY_SDCARDIO ?= 0
CIRCUITPY_SYNTHIO ?= 0
CIRCUITPY_TOUCHIO_USE_NATIVE ?= 1
CIRCUITPY_ULAB = 0
CIRCUITPY_VECTORIO = 0
CIRCUITPY_ZLIB = 0
# TODO: In CircuitPython 8.0, turn this back on, after `busio.OneWire` is removed.
# We'd like a smoother transition, but we can't afford the space to have both
# `busio.OneWire` and `onewireio.OneWire` present on these tiny builds.
ifeq ($(INTERNAL_FLASH_FILESYSTEM),1)
CIRCUITPY_ONEWIREIO ?= 0
endif
MICROPY_PY_ASYNC_AWAIT = 0
# We don't have room for the fonts for terminalio for ja and ko
# so turn off terminalio, and if it's off and displayio is on,
# force a clean build.
# Note that we cannot test $(CIRCUITPY_DISPLAYIO) directly with an
# ifeq, because it's not set yet.
ifeq ($(TRANSLATION), ja)
CIRCUITPY_TERMINALIO = 0
RELEASE_NEEDS_CLEAN_BUILD = $(CIRCUITPY_DISPLAYIO)
endif
ifeq ($(TRANSLATION), ko)
CIRCUITPY_TERMINALIO = 0
RELEASE_NEEDS_CLEAN_BUILD = $(CIRCUITPY_DISPLAYIO)
endif
SUPEROPT_GC = 0
SUPEROPT_VM = 0
ifeq ($(CIRCUITPY_FULL_BUILD),0)
# On the smallest boards, this saves about 180 bytes. On other boards, it may -increase- space used.
CFLAGS_BOARD = -fweb -frename-registers
endif
endif # samd21
######################################################################
######################################################################
# Put samd51-only choices here.
ifeq ($(CHIP_FAMILY),samd51)
# No native touchio on SAMD51.
CIRCUITPY_TOUCHIO_USE_NATIVE = 0
# The ?='s allow overriding in mpconfigboard.mk.
CIRCUITPY_ALARM ?= 1
CIRCUITPY_PS2IO ?= 1
CIRCUITPY_SAMD ?= 1
CIRCUITPY_FLOPPYIO ?= $(CIRCUITPY_FULL_BUILD)
CIRCUITPY_FRAMEBUFFERIO ?= $(CIRCUITPY_FULL_BUILD)
CIRCUITPY_RGBMATRIX ?= $(CIRCUITPY_FRAMEBUFFERIO)
CIRCUITPY_WATCHDOG ?= 1
endif # samd51
######################################################################
######################################################################
# Put same51-only choices here.
ifeq ($(CHIP_FAMILY),same51)
# No native touchio on SAME51.
CIRCUITPY_TOUCHIO_USE_NATIVE = 0
# The ?='s allow overriding in mpconfigboard.mk.
CIRCUITPY_ALARM ?= 1
CIRCUITPY_PS2IO ?= 1
CIRCUITPY_SAMD ?= 1
CIRCUITPY_FLOPPYIO ?= $(CIRCUITPY_FULL_BUILD)
CIRCUITPY_FRAMEBUFFERIO ?= $(CIRCUITPY_FULL_BUILD)
CIRCUITPY_RGBMATRIX ?= $(CIRCUITPY_FRAMEBUFFERIO)
endif # same51
######################################################################