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