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# Makefile directives for libmetal
# libmetal is intended to run through a pre-processor (as part of its CMake-based build system).
# This replicates the basic functionality of the pre-processor, including adding a "micropython"
# platform that is almost identical to the built-in "generic" platform with a few small changes
# provided by the files in extmod/libmetal.
$(BUILD)/openamp: | $(BUILD)
$(MKDIR) -p $@
$(BUILD)/openamp/metal: | $(BUILD)/openamp
$(MKDIR) -p $@
$(BUILD)/openamp/metal/config.h: $(TOP)/$(LIBMETAL_DIR)/lib/config.h | $(BUILD)/openamp/metal
@$(ECHO) "GEN $@"
@for file in $(TOP)/$(LIBMETAL_DIR)/lib/*.c $(TOP)/$(LIBMETAL_DIR)/lib/*.h; do $(SED) -e "s/@PROJECT_SYSTEM@/micropython/g" -e "s/@PROJECT_PROCESSOR@/arm/g" $$file > $(BUILD)/openamp/metal/$$(basename $$file); done
$(MKDIR) -p $(BUILD)/openamp/metal/processor/arm
@$(CP) $(TOP)/$(LIBMETAL_DIR)/lib/processor/arm/*.h $(BUILD)/openamp/metal/processor/arm
$(MKDIR) -p $(BUILD)/openamp/metal/compiler/gcc
@$(CP) $(TOP)/$(LIBMETAL_DIR)/lib/compiler/gcc/*.h $(BUILD)/openamp/metal/compiler/gcc
$(MKDIR) -p $(BUILD)/openamp/metal/system/micropython
@$(CP) $(TOP)/$(LIBMETAL_DIR)/lib/system/generic/*.c $(TOP)/$(LIBMETAL_DIR)/lib/system/generic/*.h $(BUILD)/openamp/metal/system/micropython
@$(CP) $(TOP)/extmod/libmetal/metal/system/micropython/* $(BUILD)/openamp/metal/system/micropython
@$(CP) $(TOP)/extmod/libmetal/metal/config.h $(BUILD)/openamp/metal/config.h
# libmetal's source files.
SRC_LIBMETAL_C := $(addprefix $(BUILD)/openamp/metal/,\
device.c \
dma.c \
init.c \
io.c \
irq.c \
log.c \
shmem.c \
softirq.c \
version.c \
system/micropython/condition.c \
system/micropython/device.c \
system/micropython/io.c \
system/micropython/irq.c \
system/micropython/shmem.c \
system/micropython/time.c \
)
# These files are generated by the rule above (along with config.h), so we need to make the .c
# files depend on that step -- can't use the .o files as the target because the .c files don't
# exist yet.
$(SRC_LIBMETAL_C): $(BUILD)/openamp/metal/config.h
# Qstr processing will include the generated libmetal headers, so add them as a qstr requirement.
QSTR_GLOBAL_REQUIREMENTS += $(BUILD)/openamp/metal/config.h
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