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ports/unix,windows: Add embedded romfs support with auto-mount. #43

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ports/unix,windows: Add embedded romfs support with auto-mount. #43

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31 changes: 31 additions & 0 deletions ports/unix/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -254,8 +254,26 @@ $(info Detected arm-linux-gnueabi-gcc. Disabling error message compression.)
MICROPY_ROM_TEXT_COMPRESSION = 0
endif

# Build with embedded romfs by linking the binary directly
# Usage: make ROMFS_IMG=romfs.img
ifdef ROMFS_IMG
CFLAGS += -DMICROPY_ROMFS_EMBEDDED=1
OBJ += $(BUILD)/romfs_data.o
endif

include $(TOP)/py/mkrules.mk

# Rule to build romfs_data.o from romfs.img (must be after mkrules.mk for OBJCOPY)
ifdef ROMFS_IMG
$(BUILD)/romfs_data.o: $(ROMFS_IMG) | $(BUILD)
$(Q)$(OBJCOPY) -I binary -O elf64-x86-64 -B i386:x86-64 \
--rename-section .data=.rodata,alloc,load,readonly,data,contents \
--add-section .note.GNU-stack=/dev/null \
--redefine-sym _binary_$(subst .,_,$(subst /,_,$(ROMFS_IMG)))_start=romfs_embedded_data \
--redefine-sym _binary_$(subst .,_,$(subst /,_,$(ROMFS_IMG)))_end=romfs_embedded_end \
$< $@
endif

.PHONY: test test_full_no_native test_full test//% test/% test-failures print-failures clean-failures

test: $(BUILD)/$(PROG) $(TOP)/tests/run-tests.py
Expand Down Expand Up @@ -319,3 +337,16 @@ install: $(BUILD)/$(PROG)

uninstall:
-rm $(BINDIR)/$(PROG)

# Build a romfs image from a directory
# Usage: make romfs ROMFS_DIR=path/to/directory
# Creates romfs.img in the current directory
romfs:
@if [ -z "$(ROMFS_DIR)" ]; then \
echo "Error: ROMFS_DIR not specified"; \
echo "Usage: make romfs ROMFS_DIR=path/to/directory"; \
exit 1; \
fi
$(PYTHON) -m mpremote romfs build $(ROMFS_DIR)
mv $(notdir $(ROMFS_DIR)).romfs romfs.img

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