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_CORE_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
all: Update Makefiles and others to build with new ports/ dir layout. Also renames "stmhal" to "stm32" in documentation and everywhere else. 2017-09-06 00:09:13 -04:00			`include ../../py/mkenv.mk`
Add 'bare-arm' port: the bare minimum to get it running on an ARM MCU. 2014-04-12 08:07:45 -04:00
			`# 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 \`

ports/{bare-arm,minimal}/Makefile: Only build with core source files. These ports don't need anything from extmod so don't include those files at all in the build. This speeds up the build by about 10% when building with a single core. 2018-02-21 19:15:48 -05:00			`OBJ = $(PY_CORE_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(SRC_S:.s=.o))`
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			`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`