mirror of
https://gitee.com/openharmony/third_party_littlefs
synced 2025-03-01 04:07:34 +00:00
d804c2d3b7
Inspired by Linux's Bloat-O-Meter, code_size.py wraps nm to provide function-level code size, and supports detailed comparison between different builds. One difference is that code_size.py invokes littlefs's build system similarly to test.py, creating a duplicate build in the "sizes" directory. This makes it easy to monitor a cross-compiled build size while simultaneously testing on the host machine.
74 lines
1.1 KiB
Makefile
74 lines
1.1 KiB
Makefile
TARGET = lfs.a
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ifneq ($(wildcard test.c main.c),)
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override TARGET = lfs
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endif
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CC ?= gcc
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AR ?= ar
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SIZE ?= size
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NM ?= nm
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SRC += $(wildcard *.c bd/*.c)
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OBJ := $(SRC:.c=.o)
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DEP := $(SRC:.c=.d)
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ASM := $(SRC:.c=.s)
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ifdef DEBUG
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override CFLAGS += -O0 -g3
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else
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override CFLAGS += -Os
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endif
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ifdef WORD
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override CFLAGS += -m$(WORD)
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endif
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ifdef TRACE
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override CFLAGS += -DLFS_YES_TRACE
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endif
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override CFLAGS += -I.
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override CFLAGS += -std=c99 -Wall -pedantic
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override CFLAGS += -Wextra -Wshadow -Wjump-misses-init -Wundef
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ifdef VERBOSE
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override TFLAGS += -v
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override SFLAGS += -v
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endif
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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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code_size:
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./scripts/code_size.py $(SFLAGS)
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test:
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./scripts/test.py $(TFLAGS)
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.SECONDEXPANSION:
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test%: tests/test$$(firstword $$(subst \#, ,%)).toml
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./scripts/test.py $@ $(TFLAGS)
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-include $(DEP)
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lfs: $(OBJ)
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$(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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rm -f tests/*.toml.*
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rm -f sizes/*
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