ab78fe0eb9
mpy-cross is a host, not target binary. It should not be build with the
target compiler, compiler options and other settings. For example,
If someone currently tries to build from pristine checkout the unix port
with the following command:
make CROSS_COMPILE=arm-linux-gnueabihf-
then mpy-cross will be built with arm-linux-gnueabihf-gcc and of course
won't run on the host, leading to overall build failure.
This situation was worked around for some options in 1d8c3f4cff, so add
MICROPY_FORCE_32BIT and CROSS_COMPILE to that set too.
77 lines
2.0 KiB
Makefile
77 lines
2.0 KiB
Makefile
# The following is a temporary hack to forefully undefine vars that might have
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# be defined by a calling Makefile (from recursive make).
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# TODO: Find a better way to be able to call this Makefile recursively.
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ifneq ($(findstring undefine,$(.FEATURES)),)
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override undefine COPT
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override undefine CFLAGS_EXTRA
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override undefine LDFLAGS_EXTRA
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override undefine MICROPY_FORCE_32BIT
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override undefine CROSS_COMPILE
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override undefine FROZEN_DIR
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override undefine FROZEN_MPY_DIR
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override undefine BUILD
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override undefine PROG
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endif
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include ../py/mkenv.mk
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# define main target
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PROG = mpy-cross
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# qstr definitions (must come before including py.mk)
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QSTR_DEFS = qstrdefsport.h
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# OS name, for simple autoconfig
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UNAME_S := $(shell uname -s)
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# include py core make definitions
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include $(TOP)/py/py.mk
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INC += -I.
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INC += -I$(BUILD)
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INC += -I$(TOP)
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# compiler settings
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CWARN = -Wall -Werror
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CWARN += -Wpointer-arith -Wuninitialized
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CFLAGS = $(INC) $(CWARN) -std=gnu99 $(CFLAGS_MOD) $(COPT) $(CFLAGS_EXTRA)
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CFLAGS += -fdata-sections -ffunction-sections -fno-asynchronous-unwind-tables
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# Debugging/Optimization
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ifdef DEBUG
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CFLAGS += -g
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COPT = -O0
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else
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COPT = -Os #-DNDEBUG
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endif
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# On OSX, 'gcc' is a symlink to clang unless a real gcc is installed.
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# The unix port of MicroPython on OSX must be compiled with clang,
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# while cross-compile ports require gcc, so we test here for OSX and
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# if necessary override the value of 'CC' set in py/mkenv.mk
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ifeq ($(UNAME_S),Darwin)
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CC = clang
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# Use clang syntax for map file
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LDFLAGS_ARCH = -Wl,-map,$@.map -Wl,-dead_strip
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else
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# Use gcc syntax for map file
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LDFLAGS_ARCH = -Wl,-Map=$@.map,--cref -Wl,--gc-sections
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endif
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LDFLAGS = $(LDFLAGS_MOD) $(LDFLAGS_ARCH) -lm $(LDFLAGS_EXTRA)
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# source files
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SRC_C = \
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main.c \
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gccollect.c \
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# Add fmode when compiling with mingw gcc
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COMPILER_TARGET := $(shell $(CC) -dumpmachine)
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ifneq (,$(findstring mingw,$(COMPILER_TARGET)))
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SRC_C += ports/windows/fmode.c
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endif
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OBJ = $(PY_CORE_O)
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OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
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include $(TOP)/py/mkrules.mk
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