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py/py.mk: Make user-C-module handling self-contained in py.mk. 

Removes the need for the port to add anything to OBJS or SRC_QSTR.

Also makes it possible for user-C-modules to differentiate between code
that should be processed for QSTR vs other files (e.g. helpers and
libraries).

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared 2022-10-08 23:28:24 +11:00 committed by Damien George
parent 67d05ed02b
commit 3cc6decfc4
4 changed files with 43 additions and 11 deletions
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14
docs/develop/cmodules.rst
View File

@ -49,9 +49,17 @@ A MicroPython user C module is a directory with the following files:
in your ``micropython.mk`` to a local make variable,
eg ``EXAMPLE_MOD_DIR := $(USERMOD_DIR)``
Your ``micropython.mk`` must add your modules source files relative to your
expanded copy of ``$(USERMOD_DIR)`` to ``SRC_USERMOD``, eg
``SRC_USERMOD += $(EXAMPLE_MOD_DIR)/example.c``
Your ``micropython.mk`` must add your modules source files to the
``SRC_USERMOD_C`` or ``SRC_USERMOD_LIB_C`` variables. The former will be
processed for ``MP_QSTR_`` and ``MP_REGISTER_MODULE`` definitions, the latter
will not (e.g. helpers and library code that isn't MicroPython-specific).
These paths should include your expaned copy of ``$(USERMOD_DIR)``, e.g.::
SRC_USERMOD_C += $(EXAMPLE_MOD_DIR)/modexample.c
SRC_USERMOD_LIB_C += $(EXAMPLE_MOD_DIR)/utils/algorithm.c
Similarly, use ``SRC_USERMOD_CXX`` and ``SRC_USERMOD_LIB_CXX`` for C++
source files.
If you have custom compiler options (like ``-I`` to add directories to search
for header files), these should be added to ``CFLAGS_USERMOD`` for C code

3
ports/samd/Makefile
View File

@ -81,7 +81,8 @@ endif
# Flags for optional C++ source code
CXXFLAGS += $(filter-out -std=c99,$(CFLAGS))
CXXFLAGS += $(CXXFLAGS_MOD)
ifneq ($(SRC_CXX)$(SRC_MOD_CXX),)
# TODO make this common -- shouldn't be using these "private" vars from py.mk
ifneq ($(SRC_CXX)$(SRC_USERMOD_CXX)$(SRC_USERMOD_LIB_CXX),)
LIBSTDCPP_FILE_NAME = "$(shell $(CXX) $(CXXFLAGS) -print-file-name=libstdc++.a)"
LDFLAGS += -L"$(shell dirname $(LIBSTDCPP_FILE_NAME))"
endif

3
ports/stm32/Makefile
View File

@ -157,7 +157,8 @@ endif
# Flags for optional C++ source code
CXXFLAGS += $(filter-out -Wmissing-prototypes -Wold-style-definition -std=gnu99,$(CFLAGS))
CXXFLAGS += $(CXXFLAGS_MOD)
ifneq ($(SRC_CXX)$(SRC_MOD_CXX),)
# TODO make this common -- shouldn't be using these "private" vars from py.mk
ifneq ($(SRC_CXX)$(SRC_USERMOD_CXX)$(SRC_USERMOD_LIB_CXX),)
LIBSTDCPP_FILE_NAME = "$(shell $(CXX) $(CXXFLAGS) -print-file-name=libstdc++.a)"
LDFLAGS += -L"$(shell dirname $(LIBSTDCPP_FILE_NAME))"
endif

34
py/py.mk
View File

@ -32,22 +32,44 @@ endif
ifneq ($(USER_C_MODULES),)
# pre-define USERMOD variables as expanded so that variables are immediate
# expanded as they're added to them
SRC_USERMOD :=
# C/C++ files that are included in the QSTR/module build
SRC_USERMOD_C :=
SRC_USERMOD_CXX :=
# Other C/C++ files (e.g. libraries or helpers)
SRC_USERMOD_LIB_C :=
SRC_USERMOD_LIB_CXX :=
# Optionally set flags
CFLAGS_USERMOD :=
CXXFLAGS_USERMOD :=
LDFLAGS_USERMOD :=
# Backwards compatibility with older user c modules that set SRC_USERMOD
# added to SRC_USERMOD_C below
SRC_USERMOD :=
$(foreach module, $(wildcard $(USER_C_MODULES)/*/micropython.mk), \
$(eval USERMOD_DIR = $(patsubst %/,%,$(dir $(module))))\
$(info Including User C Module from $(USERMOD_DIR))\
$(eval include $(module))\
)
SRC_MOD += $(patsubst $(USER_C_MODULES)/%.c,%.c,$(SRC_USERMOD))
SRC_MOD_CXX += $(patsubst $(USER_C_MODULES)/%.cpp,%.cpp,$(SRC_USERMOD_CXX))
CFLAGS_MOD += $(CFLAGS_USERMOD)
CXXFLAGS_MOD += $(CXXFLAGS_USERMOD)
LDFLAGS_MOD += $(LDFLAGS_USERMOD)
SRC_USERMOD_C += $(SRC_USERMOD)
SRC_USERMOD_PATHFIX_C += $(patsubst $(USER_C_MODULES)/%.c,%.c,$(SRC_USERMOD_C))
SRC_USERMOD_PATHFIX_CXX += $(patsubst $(USER_C_MODULES)/%.cpp,%.cpp,$(SRC_USERMOD_CXX))
SRC_USERMOD_PATHFIX_LIB_C += $(patsubst $(USER_C_MODULES)/%.c,%.c,$(SRC_USERMOD_LIB_C))
SRC_USERMOD_PATHFIX_LIB_CXX += $(patsubst $(USER_C_MODULES)/%.cpp,%.cpp,$(SRC_USERMOD_LIB_CXX))
CFLAGS += $(CFLAGS_USERMOD)
CXXFLAGS += $(CXXFLAGS_USERMOD)
LDFLAGS += $(LDFLAGS_USERMOD)
SRC_QSTR += $(SRC_USERMOD_PATHFIX_C) $(SRC_USERMOD_PATHFIX_CXX)
PY_O += $(addprefix $(BUILD)/, $(SRC_USERMOD_PATHFIX_C:.c=.o))
PY_O += $(addprefix $(BUILD)/, $(SRC_USERMOD_PATHFIX_CXX:.cpp=.o))
PY_O += $(addprefix $(BUILD)/, $(SRC_USERMOD_PATHFIX_LIB_C:.c=.o))
PY_O += $(addprefix $(BUILD)/, $(SRC_USERMOD_PATHFIX_LIB_CXX:.cpp=.o))
endif
# py object files