mirror of
https://gitee.com/openharmony/third_party_littlefs
synced 2024-11-23 06:50:37 +00:00
fd1da602d7
This provides a limited form of wear leveling. While wear is not actually balanced across blocks, the filesystem can recover from corrupted blocks and extend the lifetime of a device nearly as much as dynamic wear leveling. For use-cases where wear is important, it would be better to use a full form of dynamic wear-leveling at the block level. (or consider a logging filesystem). Corrupted block handling was simply added on top of the existing logic in place for the filesystem, so it's a bit more noodly than it may have to be, but it gets the work done.
58 lines
804 B
Makefile
58 lines
804 B
Makefile
TARGET = lfs
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CC = gcc
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AR = ar
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SIZE = size
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SRC += $(wildcard *.c emubd/*.c)
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OBJ := $(SRC:.c=.o)
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DEP := $(SRC:.c=.d)
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ASM := $(SRC:.c=.s)
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TEST := $(patsubst tests/%.sh,%,$(wildcard tests/test_*))
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ifdef DEBUG
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CFLAGS += -O0 -g3
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else
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CFLAGS += -Os
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endif
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ifdef WORD
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CFLAGS += -m$(WORD)
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endif
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CFLAGS += -I.
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CFLAGS += -std=c99 -Wall -pedantic
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all: $(TARGET)
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asm: $(ASM)
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size: $(OBJ)
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$(SIZE) -t $^
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.SUFFIXES:
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test: test_format test_dirs test_files test_seek test_parallel \
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test_alloc test_paths test_orphan test_corrupt
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test_%: tests/test_%.sh
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./$<
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-include $(DEP)
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$(TARGET): $(OBJ)
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$(CC) $(CFLAGS) $^ $(LFLAGS) -o $@
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%.a: $(OBJ)
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$(AR) rcs $@ $^
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%.o: %.c
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$(CC) -c -MMD $(CFLAGS) $< -o $@
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%.s: %.c
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$(CC) -S $(CFLAGS) $< -o $@
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clean:
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rm -f $(TARGET)
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rm -f $(OBJ)
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rm -f $(DEP)
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rm -f $(ASM)
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