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shrink SAMD21 builds; rework shrink logic in Makefile

This commit is contained in:
Dan Halbert 2023-03-22 12:41:38 -04:00 committed by gamblor21
parent 3020893ba2
commit 2365f9b3be
1 changed files with 15 additions and 12 deletions
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27
ports/atmel-samd/Makefile
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@ -59,6 +59,7 @@ INC += -I. \
ifeq ($(CHIP_FAMILY), samd21)
PERIPHERALS_CHIP_FAMILY=samd21
OPTIMIZATION_FLAGS ?= -Os
# TinyUSB defines
CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_SAMD21 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_CDC_RX_BUFSIZE=128 -DCFG_TUD_MIDI_TX_BUFSIZE=128 -DCFG_TUD_CDC_TX_BUFSIZE=128 -DCFG_TUD_MSC_BUFSIZE=512
endif
@ -101,24 +102,26 @@ ifeq ($(DEBUG), 1)
endif
else
CFLAGS += -DNDEBUG
# -finline-limit can shrink the image size.
# -finline-limit=80 or so is similar to not having it on.
# There is no simple default value, though.
# Do a default shrink for small builds.
ifndef CFLAGS_INLINE_LIMIT
ifeq ($(CIRCUITPY_FULL_BUILD),0)
CFLAGS_INLINE_LIMIT = 50
# Do a default shrink for small builds, including all SAMD21 builds.
ifeq ($(CIRCUITPY_FULL_BUILD),0)
SHRINK_BUILD = 1
else
ifeq ($(CHIP_FAMILY), samd21)
SHRINK_BUILD = 1
endif
endif
ifdef CFLAGS_INLINE_LIMIT
CFLAGS += -finline-limit=$(CFLAGS_INLINE_LIMIT)
# -finline-limit can shrink the image size.
# -finline-limit=80 or so is similar to not having it on.
# There is no simple default value, though.
ifeq ($(SHRINK_BUILD), 1)
CFLAGS += -finline-limit=45
endif
ifeq ($(CIRCUITPY_FULL_BUILD),0)
CFLAGS += --param inline-unit-growth=15 --param max-inline-insns-auto=20
endif
# We used to do this but it seems to not reduce space any more, at least in gcc 11.
# Leave it here, commented out, just for reference.
# --param inline-unit-growth=15 --param max-inline-insns-auto=20
ifdef CFLAGS_BOARD
CFLAGS += $(CFLAGS_BOARD)