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micropython/py/mkrules.mk
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ifneq ($(MKENV_INCLUDED),1) | |
# We assume that mkenv is in the same directory as this file. | |
THIS_MAKEFILE = $(lastword $(MAKEFILE_LIST)) | |
include $(dir $(THIS_MAKEFILE))mkenv.mk | |
endif | |
# Enable in-progress/breaking changes that are slated for MicroPython 2.x. | |
MICROPY_PREVIEW_VERSION_2 ?= 0 | |
ifeq ($(MICROPY_PREVIEW_VERSION_2),1) | |
CFLAGS += -DMICROPY_PREVIEW_VERSION_2=1 | |
endif | |
HELP_BUILD_ERROR ?= "See \033[1;31mhttps://github.com/micropython/micropython/wiki/Build-Troubleshooting\033[0m" | |
HELP_MPY_LIB_SUBMODULE ?= "\033[1;31mError: micropython-lib submodule is not initialized.\033[0m Run 'make submodules'" | |
# Extra deps that need to happen before object compilation. | |
OBJ_EXTRA_ORDER_DEPS = | |
# Generate header files. | |
OBJ_EXTRA_ORDER_DEPS += $(HEADER_BUILD)/moduledefs.h $(HEADER_BUILD)/root_pointers.h | |
ifeq ($(MICROPY_ROM_TEXT_COMPRESSION),1) | |
# If compression is enabled, trigger the build of compressed.data.h... | |
OBJ_EXTRA_ORDER_DEPS += $(HEADER_BUILD)/compressed.data.h | |
# ...and enable the MP_COMPRESSED_ROM_TEXT macro (used by MP_ERROR_TEXT). | |
CFLAGS += -DMICROPY_ROM_TEXT_COMPRESSION=1 | |
endif | |
# QSTR generation uses the same CFLAGS, with these modifications. | |
QSTR_GEN_FLAGS = -DNO_QSTR | |
# Note: := to force evaluation immediately. | |
QSTR_GEN_CFLAGS := $(CFLAGS) | |
QSTR_GEN_CFLAGS += $(QSTR_GEN_FLAGS) | |
QSTR_GEN_CXXFLAGS := $(CXXFLAGS) | |
QSTR_GEN_CXXFLAGS += $(QSTR_GEN_FLAGS) | |
# This file expects that OBJ contains a list of all of the object files. | |
# The directory portion of each object file is used to locate the source | |
# and should not contain any ..'s but rather be relative to the top of the | |
# tree. | |
# | |
# So for example, py/map.c would have an object file name py/map.o | |
# The object files will go into the build directory and maintain the same | |
# directory structure as the source tree. So the final dependency will look | |
# like this: | |
# | |
# build/py/map.o: py/map.c | |
# | |
# We set vpath to point to the top of the tree so that the source files | |
# can be located. By following this scheme, it allows a single build rule | |
# to be used to compile all .c files. | |
vpath %.S . $(TOP) $(USER_C_MODULES) | |
$(BUILD)/%.o: %.S | |
$(ECHO) "CC $<" | |
$(Q)$(CC) $(CFLAGS) -c -o $@ $< | |
vpath %.s . $(TOP) $(USER_C_MODULES) | |
$(BUILD)/%.o: %.s | |
$(ECHO) "AS $<" | |
$(Q)$(AS) $(AFLAGS) -o $@ $< | |
define compile_c | |
$(ECHO) "CC $<" | |
$(Q)$(CC) $(CFLAGS) -c -MD -MF $(@:.o=.d) -o $@ $< || (echo -e $(HELP_BUILD_ERROR); false) | |
@# The following fixes the dependency file. | |
@# See http://make.paulandlesley.org/autodep.html for details. | |
@# Regex adjusted from the above to play better with Windows paths, etc. | |
@$(CP) $(@:.o=.d) $(@:.o=.P); \ | |
$(SED) -e 's/#.*//' -e 's/^.*: *//' -e 's/ *\\$$//' \ | |
-e '/^$$/ d' -e 's/$$/ :/' < $(@:.o=.d) >> $(@:.o=.P); \ | |
$(RM) -f $(@:.o=.d) | |
endef | |
define compile_cxx | |
$(ECHO) "CXX $<" | |
$(Q)$(CXX) $(CXXFLAGS) -c -MD -MF $(@:.o=.d) -o $@ $< || (echo -e $(HELP_BUILD_ERROR); false) | |
@# The following fixes the dependency file. | |
@# See http://make.paulandlesley.org/autodep.html for details. | |
@# Regex adjusted from the above to play better with Windows paths, etc. | |
@$(CP) $(@:.o=.d) $(@:.o=.P); \ | |
$(SED) -e 's/#.*//' -e 's/^.*: *//' -e 's/ *\\$$//' \ | |
-e '/^$$/ d' -e 's/$$/ :/' < $(@:.o=.d) >> $(@:.o=.P); \ | |
$(RM) -f $(@:.o=.d) | |
endef | |
vpath %.c . $(TOP) $(USER_C_MODULES) | |
$(BUILD)/%.o: %.c | |
$(call compile_c) | |
vpath %.cpp . $(TOP) $(USER_C_MODULES) | |
$(BUILD)/%.o: %.cpp | |
$(call compile_cxx) | |
$(BUILD)/%.pp: %.c | |
$(ECHO) "PreProcess $<" | |
$(Q)$(CPP) $(CFLAGS) -Wp,-C,-dD,-dI -o $@ $< | |
# Special case for compiling auto-generated source files. | |
$(BUILD)/%.o: $(BUILD)/%.c | |
$(call compile_c) | |
# The following rule uses | to create an order only prerequisite. Order only | |
# prerequisites only get built if they don't exist. They don't cause timestamp | |
# checking to be performed. | |
# | |
# We don't know which source files actually need the generated.h (since | |
# it is #included from str.h). The compiler generated dependencies will cause | |
# the right .o's to get recompiled if the generated.h file changes. Adding | |
# an order-only dependency to all of the .o's will cause the generated .h | |
# to get built before we try to compile any of them. | |
$(OBJ): | $(HEADER_BUILD)/qstrdefs.generated.h $(HEADER_BUILD)/mpversion.h $(OBJ_EXTRA_ORDER_DEPS) | |
# The logic for qstr regeneration (applied by makeqstrdefs.py) is: | |
# - if anything in QSTR_GLOBAL_DEPENDENCIES is newer, then process all source files ($^) | |
# - else, if list of newer prerequisites ($?) is not empty, then process just these ($?) | |
# - else, process all source files ($^) [this covers "make -B" which can set $? to empty] | |
# See more information about this process in docs/develop/qstr.rst. | |
$(HEADER_BUILD)/qstr.i.last: $(SRC_QSTR) $(QSTR_GLOBAL_DEPENDENCIES) | $(QSTR_GLOBAL_REQUIREMENTS) | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py pp $(CPP) output $(HEADER_BUILD)/qstr.i.last cflags $(QSTR_GEN_CFLAGS) cxxflags $(QSTR_GEN_CXXFLAGS) sources $^ dependencies $(QSTR_GLOBAL_DEPENDENCIES) changed_sources $? | |
$(HEADER_BUILD)/qstr.split: $(HEADER_BUILD)/qstr.i.last | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py split qstr $< $(HEADER_BUILD)/qstr _ | |
$(Q)$(TOUCH) $@ | |
$(QSTR_DEFS_COLLECTED): $(HEADER_BUILD)/qstr.split | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat qstr _ $(HEADER_BUILD)/qstr $@ | |
# Module definitions via MP_REGISTER_MODULE. | |
$(HEADER_BUILD)/moduledefs.split: $(HEADER_BUILD)/qstr.i.last | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py split module $< $(HEADER_BUILD)/module _ | |
$(Q)$(TOUCH) $@ | |
$(HEADER_BUILD)/moduledefs.collected: $(HEADER_BUILD)/moduledefs.split | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat module _ $(HEADER_BUILD)/module $@ | |
# Module definitions via MP_REGISTER_ROOT_POINTER. | |
$(HEADER_BUILD)/root_pointers.split: $(HEADER_BUILD)/qstr.i.last | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py split root_pointer $< $(HEADER_BUILD)/root_pointer _ | |
$(Q)$(TOUCH) $@ | |
$(HEADER_BUILD)/root_pointers.collected: $(HEADER_BUILD)/root_pointers.split | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat root_pointer _ $(HEADER_BUILD)/root_pointer $@ | |
# Compressed error strings. | |
$(HEADER_BUILD)/compressed.split: $(HEADER_BUILD)/qstr.i.last | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py split compress $< $(HEADER_BUILD)/compress _ | |
$(Q)$(TOUCH) $@ | |
$(HEADER_BUILD)/compressed.collected: $(HEADER_BUILD)/compressed.split | |
$(ECHO) "GEN $@" | |
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat compress _ $(HEADER_BUILD)/compress $@ | |
# $(sort $(var)) removes duplicates | |
# | |
# The net effect of this, is it causes the objects to depend on the | |
# object directories (but only for existence), and the object directories | |
# will be created if they don't exist. | |
OBJ_DIRS = $(sort $(dir $(OBJ))) | |
$(OBJ): | $(OBJ_DIRS) | |
$(OBJ_DIRS): | |
$(MKDIR) -p $@ | |
$(HEADER_BUILD): | |
$(MKDIR) -p $@ | |
ifneq ($(MICROPY_MPYCROSS_DEPENDENCY),) | |
# to automatically build mpy-cross, if needed | |
$(MICROPY_MPYCROSS_DEPENDENCY): | |
$(MAKE) -C "$(abspath $(dir $@)..)" | |
endif | |
ifneq ($(FROZEN_DIR),) | |
$(error Support for FROZEN_DIR was removed. Please use manifest.py instead, see https://docs.micropython.org/en/latest/reference/manifest.html) | |
endif | |
ifneq ($(FROZEN_MPY_DIR),) | |
$(error Support for FROZEN_MPY_DIR was removed. Please use manifest.py instead, see https://docs.micropython.org/en/latest/reference/manifest.html) | |
endif | |
ifneq ($(FROZEN_MANIFEST),) | |
# If we're using the default submodule path for micropython-lib, then make | |
# sure it's included in "make submodules". | |
ifeq ($(MPY_LIB_DIR),$(MPY_LIB_SUBMODULE_DIR)) | |
GIT_SUBMODULES += lib/micropython-lib | |
endif | |
# Set compile options needed to enable frozen code. | |
CFLAGS += -DMICROPY_QSTR_EXTRA_POOL=mp_qstr_frozen_const_pool | |
CFLAGS += -DMICROPY_MODULE_FROZEN_MPY | |
CFLAGS += -DMICROPY_MODULE_FROZEN_STR | |
# Set default path variables to be passed to makemanifest.py. These will be | |
# available in path substitutions. Additional variables can be set per-board | |
# in mpconfigboard.mk or on the make command line. | |
MICROPY_MANIFEST_MPY_LIB_DIR = $(MPY_LIB_DIR) | |
MICROPY_MANIFEST_PORT_DIR = $(shell pwd) | |
MICROPY_MANIFEST_BOARD_DIR = $(BOARD_DIR) | |
MICROPY_MANIFEST_MPY_DIR = $(TOP) | |
# Find all MICROPY_MANIFEST_* variables and turn them into command line arguments. | |
MANIFEST_VARIABLES = $(foreach var,$(filter MICROPY_MANIFEST_%, $(.VARIABLES)),-v "$(subst MICROPY_MANIFEST_,,$(var))=$($(var))") | |
# to build frozen_content.c from a manifest | |
$(BUILD)/frozen_content.c: FORCE $(BUILD)/genhdr/qstrdefs.generated.h $(BUILD)/genhdr/root_pointers.h | $(MICROPY_MPYCROSS_DEPENDENCY) | |
$(Q)test -e "$(MPY_LIB_DIR)/README.md" || (echo -e $(HELP_MPY_LIB_SUBMODULE); false) | |
$(Q)$(MAKE_MANIFEST) -o $@ $(MANIFEST_VARIABLES) -b "$(BUILD)" $(if $(MPY_CROSS_FLAGS),-f"$(MPY_CROSS_FLAGS)",) --mpy-tool-flags="$(MPY_TOOL_FLAGS)" $(FROZEN_MANIFEST) | |
endif | |
ifneq ($(PROG),) | |
# Build a standalone executable (unix does this) | |
# The executable should have an .exe extension for builds targeting 'pure' | |
# Windows, i.e. msvc or mingw builds, but not when using msys or cygwin's gcc. | |
COMPILER_TARGET := $(shell $(CC) -dumpmachine) | |
ifneq (,$(findstring mingw,$(COMPILER_TARGET))) | |
PROG := $(PROG).exe | |
endif | |
all: $(BUILD)/$(PROG) | |
$(BUILD)/$(PROG): $(OBJ) | |
$(ECHO) "LINK $@" | |
# Do not pass COPT here - it's *C* compiler optimizations. For example, | |
# we may want to compile using Thumb, but link with non-Thumb libc. | |
$(Q)$(CC) -o $@ $^ $(LIB) $(LDFLAGS) | |
ifndef DEBUG | |
ifdef STRIP | |
$(Q)$(STRIP) $(STRIPFLAGS_EXTRA) $@ | |
endif | |
endif | |
$(Q)$(SIZE) $$(find $(BUILD) -path "$(BUILD)/build/frozen*.o") $@ | |
clean: clean-prog | |
clean-prog: | |
$(RM) -f $(BUILD)/$(PROG) | |
$(RM) -f $(BUILD)/$(PROG).map | |
.PHONY: clean-prog | |
endif | |
submodules: | |
$(ECHO) "Updating submodules: $(GIT_SUBMODULES)" | |
ifneq ($(GIT_SUBMODULES),) | |
$(Q)git submodule sync $(addprefix $(TOP)/,$(GIT_SUBMODULES)) | |
$(Q)git submodule update --init $(addprefix $(TOP)/,$(GIT_SUBMODULES)) | |
endif | |
.PHONY: submodules | |
LIBMICROPYTHON = libmicropython.a | |
# We can execute extra commands after library creation using | |
# LIBMICROPYTHON_EXTRA_CMD. This may be needed e.g. to integrate | |
# with 3rd-party projects which don't have proper dependency | |
# tracking. Then LIBMICROPYTHON_EXTRA_CMD can e.g. touch some | |
# other file to cause needed effect, e.g. relinking with new lib. | |
lib $(BUILD)/$(LIBMICROPYTHON): $(OBJ) | |
$(Q)$(AR) rcs $(BUILD)/$(LIBMICROPYTHON) $^ | |
$(LIBMICROPYTHON_EXTRA_CMD) | |
clean: | |
$(RM) -rf $(BUILD) $(CLEAN_EXTRA) | |
.PHONY: clean | |
print-cfg: | |
$(ECHO) "PY_SRC = $(PY_SRC)" | |
$(ECHO) "BUILD = $(BUILD)" | |
$(ECHO) "OBJ = $(OBJ)" | |
.PHONY: print-cfg | |
print-def: | |
@$(ECHO) "The following defines are built into the $(CC) compiler" | |
$(TOUCH) __empty__.c | |
@$(CC) -E -Wp,-dM __empty__.c | |
@$(RM) -f __empty__.c | |
-include $(OBJ:.o=.P) |