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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
# Extra deps that need to happen before object compilation.
OBJ_EXTRA_ORDER_DEPS =
# 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 mantain 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
$(STEPECHO) "CC $<"
$(Q)$(CC) $(CFLAGS) -c -o $@ $<
vpath %.s . $(TOP) $(USER_C_MODULES)
$(BUILD)/%.o: %.s
$(STEPECHO) "AS $<"
$(Q)$(AS) -o $@ $<
define compile_c
$(STEPECHO) "CC $<"
$(Q)$(CC) $(CFLAGS) -c -MD -o $@ $<
@# The following fixes the dependency file.
@# See http://make.paulandlesley.org/autodep.html for details.
@# Regex adjusted from the above to play better with Windows paths, etc.
@$(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 -o $@ $<
@# The following fixes the dependency file.
@# See http://make.paulandlesley.org/autodep.html for details.
@# Regex adjusted from the above to play better with Windows paths, etc.
@$(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) $(DEVICES_MODULES)
$(BUILD)/%.o: %.c | $(HEADER_BUILD)/qstrdefs.generated.h $(HEADER_BUILD)/qstrdefs.enum.h
$(call compile_c)
vpath %.cpp . $(TOP) $(USER_C_MODULES)
$(BUILD)/%.o: %.cpp | $(HEADER_BUILD)/qstrdefs.generated.h $(HEADER_BUILD)/qstrdefs.enum.h
$(call compile_cxx)
QSTR_GEN_EXTRA_CFLAGS += -DNO_QSTR -x c
# frozen.c and frozen_mpy.c are created in $(BUILD), so use our rule
# for those as well.
vpath %.c . $(BUILD)
$(BUILD)/%.o: %.c
$(call compile_c)
QSTR_GEN_EXTRA_CFLAGS += -I$(BUILD)/tmp
vpath %.c . $(TOP) $(USER_C_MODULES) $(DEVICES_MODULES)
$(BUILD)/%.pp: %.c
$(STEPECHO) "PreProcess $<"
$(Q)$(CPP) $(CFLAGS) -E -Wp,-C,-dD,-dI -o $@ $<
# 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): | $(HEADER_BUILD)/mpversion.h
# The logic for qstr regeneration (applied by makeqstrdefs.py) is:
# - if anything in QSTR_GLOBAL_DEPENDENCIES is newer, then process all source files ($^)
# - 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]
$(HEADER_BUILD)/qstr.split: $(SRC_QSTR) $(SRC_QSTR_PREPROCESSOR) $(QSTR_GLOBAL_DEPENDENCIES) $(HEADER_BUILD)/moduledefs.h | $(HEADER_BUILD)/mpversion.h $(PY_SRC)/genlast.py
$(STEPECHO) "GEN $@"
$(Q)$(PYTHON) $(PY_SRC)/genlast.py $(HEADER_BUILD)/qstr $(if $(filter $?,$(QSTR_GLOBAL_DEPENDENCIES)),$^,$(if $?,$?,$^)) -- $(SRC_QSTR_PREPROCESSOR) -- $(CPP) $(QSTR_GEN_EXTRA_CFLAGS) $(CFLAGS)
$(Q)$(TOUCH) $@
$(QSTR_DEFS_COLLECTED): $(HEADER_BUILD)/qstr.split $(PY_SRC)/makeqstrdefs.py
$(STEPECHO) "GEN $@"
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat - $(HEADER_BUILD)/qstr $(QSTR_DEFS_COLLECTED)
# $(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):
$(Q)$(MKDIR) -p $@
$(HEADER_BUILD):
$(Q)$(MKDIR) -p $@
$(MKDIR) -p $@
ifneq ($(MICROPY_MPYCROSS_DEPENDENCY),)
# to automatically build mpy-cross, if needed
$(MICROPY_MPYCROSS_DEPENDENCY):
$(MAKE) -C $(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),)
# to build frozen_content.c from a manifest
$(BUILD)/frozen_content.c: FORCE $(FROZEN_MANIFEST) $(BUILD)/genhdr/qstrdefs.generated.h | $(MICROPY_MPYCROSS_DEPENDENCY) $(TOP)/tools/makemanifest.py
$(Q)$(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)" $(FROZEN_MANIFEST)
endif
ifneq ($(PROG),)
# Build a standalone executable (unix does this)
# The executable should have an .exe extension for builds targetting '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: $(PROG)
$(PROG): $(OBJ)
$(STEPECHO) "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)
ifdef STRIP_CIRCUITPYTHON
$(Q)$(STRIP) $(STRIPFLAGS_EXTRA) $@
endif
$(Q)$(SIZE) $$(find $(BUILD) -path "$(BUILD)/build/frozen*.o") $@
clean: clean-prog
clean-prog:
$(RM) -f $(PROG)
$(RM) -f $(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 $(LIBMICROPYTHON): $(OBJ)
$(Q)$(AR) rcs $(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
tags:
ctags -e -R $(TOP)
-include $(OBJ:.o=.P)