MPTOP = ../.. -include mpconfigport.mk include $(MPTOP)/py/mkenv.mk all: lib # OS name, for simple autoconfig UNAME_S := $(shell uname -s) # include py core make definitions include $(MPTOP)/py/py.mk include $(MPTOP)/extmod/extmod.mk INC += -I. INC += -I.. INC += -I$(MPTOP) INC += -I$(MPTOP)/ports/unix INC += -I$(BUILD) # compiler settings CWARN = -Wall -Werror CWARN += -Wpointer-arith -Wuninitialized CFLAGS = $(INC) $(CWARN) -std=gnu99 -DUNIX $(CFLAGS_MOD) $(COPT) $(CFLAGS_EXTRA) # Some systems (eg MacOS) need -fno-common so that mp_state_ctx is placed in the BSS. CFLAGS += -fno-common # Debugging/Optimization ifdef DEBUG CFLAGS += -g COPT = -O0 else COPT = -Os #-DNDEBUG # _FORTIFY_SOURCE is a feature in gcc/glibc which is intended to provide extra # security for detecting buffer overflows. Some distros (Ubuntu at the very least) # have it enabled by default. # # gcc already optimizes some printf calls to call puts and/or putchar. When # _FORTIFY_SOURCE is enabled and compiling with -O1 or greater, then some # printf calls will also be optimized to call __printf_chk (in glibc). Any # printfs which get redirected to __printf_chk are then no longer synchronized # with printfs that go through mp_printf. # # In MicroPython, we don't want to use the runtime library's printf but rather # go through mp_printf, so that stdout is properly tied into streams, etc. # This means that we either need to turn off _FORTIFY_SOURCE or provide our # own implementation of __printf_chk. We've chosen to turn off _FORTIFY_SOURCE. # It should also be noted that the use of printf in MicroPython is typically # quite limited anyways (primarily for debug and some error reporting, etc # in the unix version). # # Information about _FORTIFY_SOURCE seems to be rather scarce. The best I could # find was this: https://securityblog.redhat.com/2014/03/26/fortify-and-you/ # Original patchset was introduced by # https://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html . # # Turning off _FORTIFY_SOURCE is only required when compiling with -O1 or greater CFLAGS += -U _FORTIFY_SOURCE endif # On OSX, 'gcc' is a symlink to clang unless a real gcc is installed. # The unix port of MicroPython on OSX must be compiled with clang, # while cross-compile ports require gcc, so we test here for OSX and # if necessary override the value of 'CC' set in py/mkenv.mk ifeq ($(UNAME_S),Darwin) CC = clang # Use clang syntax for map file LDFLAGS_ARCH = -Wl,-map,$@.map else # Use gcc syntax for map file LDFLAGS_ARCH = -Wl,-Map=$@.map,--cref endif LDFLAGS = $(LDFLAGS_MOD) $(LDFLAGS_ARCH) -lm $(LDFLAGS_EXTRA) ifeq ($(MICROPY_FORCE_32BIT),1) # Note: you may need to install i386 versions of dependency packages, # starting with linux-libc-dev:i386 ifeq ($(MICROPY_PY_FFI),1) ifeq ($(UNAME_S),Linux) CFLAGS_MOD += -I/usr/include/i686-linux-gnu endif endif endif ifeq ($(MICROPY_USE_READLINE),1) INC += -I$(MPTOP)/shared/readline CFLAGS_MOD += -DMICROPY_USE_READLINE=1 SHARED_SRC_C_EXTRA += readline/readline.c endif ifeq ($(MICROPY_USE_READLINE),2) CFLAGS_MOD += -DMICROPY_USE_READLINE=2 LDFLAGS_MOD += -lreadline # the following is needed for BSD #LDFLAGS_MOD += -ltermcap endif ifeq ($(MICROPY_PY_TIME),1) CFLAGS_MOD += -DMICROPY_PY_TIME=1 SRC_MOD += modtime.c endif ifeq ($(MICROPY_PY_TERMIOS),1) CFLAGS_MOD += -DMICROPY_PY_TERMIOS=1 SRC_MOD += modtermios.c endif ifeq ($(MICROPY_PY_SOCKET),1) CFLAGS_MOD += -DMICROPY_PY_SOCKET=1 SRC_MOD += modsocket.c endif ifeq ($(MICROPY_PY_FFI),1) ifeq ($(MICROPY_STANDALONE),1) LIBFFI_CFLAGS_MOD := -I$(shell ls -1d $(MPTOP)/lib/libffi/build_dir/out/lib/libffi-*/include) ifeq ($(MICROPY_FORCE_32BIT),1) LIBFFI_LDFLAGS_MOD = $(MPTOP)/lib/libffi/build_dir/out/lib32/libffi.a else LIBFFI_LDFLAGS_MOD = $(MPTOP)/lib/libffi/build_dir/out/lib/libffi.a endif else LIBFFI_CFLAGS_MOD := $(shell pkg-config --cflags libffi) LIBFFI_LDFLAGS_MOD := $(shell pkg-config --libs libffi) endif ifeq ($(UNAME_S),Linux) LIBFFI_LDFLAGS_MOD += -ldl endif CFLAGS_MOD += $(LIBFFI_CFLAGS_MOD) -DMICROPY_PY_FFI=1 LDFLAGS_MOD += $(LIBFFI_LDFLAGS_MOD) SRC_MOD += modffi.c endif MAIN_C = main.c # source files SRC_C = $(addprefix ports/unix/,\ $(MAIN_C) \ gccollect.c \ unix_mphal.c \ input.c \ modmachine.c \ moduselect.c \ alloc.c \ coverage.c \ fatfs_port.c \ $(SRC_MOD) \ ) SHARED_SRC_C = $(addprefix shared/,\ libc/printf.c \ runtime/gchelper_generic.c \ timeutils/timeutils.c \ $(SHARED_SRC_C_EXTRA) \ ) OBJ = $(PY_O) OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o)) OBJ += $(addprefix $(BUILD)/, $(SHARED_SRC_C:.c=.o)) # List of sources for qstr extraction SRC_QSTR += $(SRC_C) $(SHARED_SRC_C) # Append any auto-generated sources that are needed by sources listed in # SRC_QSTR SRC_QSTR_AUTO_DEPS += include $(MPTOP)/py/mkrules.mk # Value of configure's --host= option (required for cross-compilation). # Deduce it from CROSS_COMPILE by default, but can be overridden. ifneq ($(CROSS_COMPILE),) CROSS_COMPILE_HOST = --host=$(patsubst %-,%,$(CROSS_COMPILE)) else CROSS_COMPILE_HOST = endif deplibs: libffi # install-exec-recursive & install-data-am targets are used to avoid building # docs and depending on makeinfo libffi: cd $(MPTOP)/lib/libffi; git clean -d -x -f cd $(MPTOP)/lib/libffi; ./autogen.sh mkdir -p $(MPTOP)/lib/libffi/build_dir; cd $(MPTOP)/lib/libffi/build_dir; \ ../configure $(CROSS_COMPILE_HOST) --prefix=$$PWD/out CC="$(CC)" CXX="$(CXX)" LD="$(LD)"; \ make install-exec-recursive; make -C include install-data-am