circuitpython/ports/bare-arm/Makefile

include ../py/mkenv.mk

# qstr definitions (must come before including py.mk)
QSTR_DEFS = qstrdefsport.h

# include py core make definitions
include $(TOP)/py/py.mk

CROSS_COMPILE = arm-none-eabi-

INC += -I.
INC += -I$(TOP)
INC += -I$(BUILD)

CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion
CFLAGS = $(INC) -Wall -Werror -std=c99 -nostdlib $(CFLAGS_CORTEX_M4) $(COPT)

#Debugging/Optimization
ifeq ($(DEBUG), 1)
CFLAGS += -O0 -ggdb
else
CFLAGS += -Os -DNDEBUG
endif

LDFLAGS = -nostdlib -T stm32f405.ld -Map=$@.map --cref
LIBS =

SRC_C = \
	main.c \
#	printf.c \
	string0.c \
	malloc0.c \
	gccollect.c \

SRC_S = \
#	startup_stm32f40xx.s \
	gchelper.s \

OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(SRC_S:.s=.o))

all: $(BUILD)/firmware.elf

$(BUILD)/firmware.elf: $(OBJ)
	$(ECHO) "LINK $@"
	$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)
	$(Q)$(SIZE) $@

include $(TOP)/py/mkrules.mk
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00			`include ../py/mkenv.mk`

			`# qstr definitions (must come before including py.mk)`
			`QSTR_DEFS = qstrdefsport.h`

			`# include py core make definitions`
all: Make use of $(TOP) variable in Makefiles, instead of "..". $(TOP) is defined in py/mkenv.mk and should be used to refer to the top level of this repository. 2017-08-10 22:22:19 -04:00			`include $(TOP)/py/py.mk`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00
			`CROSS_COMPILE = arm-none-eabi-`

all: Make netutils.h available to all ports by default. Generally, ports should inherit INC from py.mk, append to it, not overwrite it. TODO: Likely should do the same for other vars too. 2015-10-19 11:22:16 -04:00			`INC += -I.`
all: Make use of $(TOP) variable in Makefiles, instead of "..". $(TOP) is defined in py/mkenv.mk and should be used to refer to the top level of this repository. 2017-08-10 22:22:19 -04:00			`INC += -I$(TOP)`
build: Simplify build directory layout by putting all headers in genhdr. Any generated headers go in $(BUILD)/genhdr/, and are #included as 'genhdr/xxx.h'. 2014-04-17 13:03:27 -04:00			`INC += -I$(BUILD)`
build directory can now be renamed The autogenerated header files have been moved about, and an extra include dir has been added, which means you can give a custom BUILD=newbuilddir option to make, and everything "just works" Also tidied up the way the different Makefiles build their include- directory flags 2014-04-16 17:10:33 -04:00
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00			`CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion`
bare-arm/Makefile: Change C standard from gnu99 to c99. 2017-03-23 00:41:04 -04:00			`CFLAGS = $(INC) -Wall -Werror -std=c99 -nostdlib $(CFLAGS_CORTEX_M4) $(COPT)`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00
			`#Debugging/Optimization`
			`ifeq ($(DEBUG), 1)`
			`CFLAGS += -O0 -ggdb`
			`else`
			`CFLAGS += -Os -DNDEBUG`
			`endif`

bare-arm: Enable link map file. This port supposed to be demo of uPy minimality, so let people behold it in details. 2014-06-27 11:58:31 -04:00			`LDFLAGS = -nostdlib -T stm32f405.ld -Map=$@.map --cref`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00			`LIBS =`

			`SRC_C = \`
			`main.c \`
			`# printf.c \`
			`string0.c \`
			`malloc0.c \`
			`gccollect.c \`

			`SRC_S = \`
			`# startup_stm32f40xx.s \`
			`gchelper.s \`

			`OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(SRC_S:.s=.o))`

bare-arm: Change output file from flash.elf to firmware.elf. 2014-05-10 08:45:47 -04:00			`all: $(BUILD)/firmware.elf`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00
bare-arm: Change output file from flash.elf to firmware.elf. 2014-05-10 08:45:47 -04:00			`$(BUILD)/firmware.elf: $(OBJ)`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00			`$(ECHO) "LINK $@"`
Makefiles: Remove duplicate object files when linking. Scenario: module1 depends on some common file from lib/, so specifies it in its SRC_MOD, and the same situation with module2, then common file from lib/ eventually ends up listed twice in $(OBJ), which leads to link errors. Make is equipped to deal with such situation easily, quoting the manual: "The value of $^ omits duplicate prerequisites, while $+ retains them and preserves their order." So, just use $^ consistently in all link targets. 2015-10-23 19:26:10 -04:00			`$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00			`$(Q)$(SIZE) $@`

all: Make use of $(TOP) variable in Makefiles, instead of "..". $(TOP) is defined in py/mkenv.mk and should be used to refer to the top level of this repository. 2017-08-10 22:22:19 -04:00			`include $(TOP)/py/mkrules.mk`