atmel-samd: Switch to nano newlib and add size script to build.

This commit is contained in:
Scott Shawcroft 2017-02-24 14:55:34 +01:00
parent 75d0b02b3f
commit efd429464e
2 changed files with 68 additions and 5 deletions

View File

@ -139,12 +139,10 @@ CFLAGS += -DMICROPY_QSTR_EXTRA_POOL=mp_qstr_frozen_const_pool
CFLAGS += -DMICROPY_MODULE_FROZEN_MPY CFLAGS += -DMICROPY_MODULE_FROZEN_MPY
endif endif
LIBGCC_FILE_NAME = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
LIBM_FILE_NAME = $(shell $(CC) $(CFLAGS) -print-file-name=libm.a) LIBM_FILE_NAME = $(shell $(CC) $(CFLAGS) -print-file-name=libm.a)
LDFLAGS = -L asf/thirdparty/CMSIS/Lib/GCC/ -L QTouch/ -L $(dir $(LIBGCC_FILE_NAME)) -L $(dir $(LIBM_FILE_NAME)) -nostdlib -T $(LD_FILE) -Map=$@.map --cref --gc-sections LDFLAGS = -Lasf/thirdparty/CMSIS/Lib/GCC/ -LQTouch/ -L$(dir $(LIBM_FILE_NAME)) -Wl,-nostdlib -Wl,-T,$(LD_FILE) -Wl,-Map=$@.map -Wl,-cref -Wl,-gc-sections -specs=nano.specs
LIBS = -larm_cortexM0l_math -lsamd21_qtouch_gcc -lm -lgcc -lc LIBS = -larm_cortexM0l_math -lsamd21_qtouch_gcc -lm -lgcc -lc
SRC_ASF = $(addprefix asf/sam0/,\ SRC_ASF = $(addprefix asf/sam0/,\
drivers/adc/adc_sam_d_r/adc.c \ drivers/adc/adc_sam_d_r/adc.c \
drivers/dac/dac_sam_d_c/dac.c \ drivers/dac/dac_sam_d_c/dac.c \
@ -260,8 +258,8 @@ all: $(BUILD)/firmware.bin
$(BUILD)/firmware.elf: $(OBJ) $(BUILD)/firmware.elf: $(OBJ)
$(ECHO) "LINK $@" $(ECHO) "LINK $@"
$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS) $(Q)$(CC) -o $@ $(LDFLAGS) $^ -Wl,--start-group $(LIBS) -Wl,--end-group
$(Q)$(SIZE) $@ $(Q)$(SIZE) $@ | python3 ../tools/build_memory_info.py $(LD_FILE)
$(BUILD)/firmware.bin: $(BUILD)/firmware.elf $(BUILD)/firmware.bin: $(BUILD)/firmware.elf
$(ECHO) "Create $@" $(ECHO) "Create $@"

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@ -0,0 +1,65 @@
#!/usr/bin/env python3
#
# This file is part of the MicroPython project, http://micropython.org/
#
# The MIT License (MIT)
#
# Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import sys
print()
text = 0
data = 0
bss = 0
# stdin is the linker output.
for line in sys.stdin:
line = line.strip()
if not line.startswith("text"):
text, data, bss = map(int, line.split()[:3])
regions = {}
# This file is the linker script.
with open(sys.argv[1], "r") as f:
for line in f:
line = line.strip()
if line.startswith(("FLASH", "RAM")):
regions[line.split()[0]] = line.split("=")[-1]
for region in regions:
space = regions[region]
if "/*" in space:
space = space.split("/*")[0]
regions[region] = eval(space)
free_flash = regions["FLASH"] - text - data
free_ram = regions["RAM"] - data - bss
print(free_flash, "bytes free in flash out of", regions["FLASH"], "bytes (", regions["FLASH"] / 1024, "kb ).")
print(free_ram, "bytes free in ram for stack out of", regions["RAM"], "bytes (", regions["RAM"] / 1024, "kb ).")
print()
# Check that we have free flash space. GCC doesn't fail when the text + data
# sections don't fit in FLASH. It only counts data in RAM.
if free_flash < 0:
print("Too little flash!!!")
print()
sys.exit(-1)