mirror of
https://github.com/littlefs-project/littlefs.git
synced 2025-10-29 19:47:49 +00:00
4a7e94fb15
This also adds coverage support to the new test framework, which due to reduction in scope, no longer needs aggregation and can be much simpler. Really all we need to do is pass --coverage to GCC, which builds its .gcda files during testing in a multi-process-safe manner. The addition of branch coverage leverages information that was available in both lcov and gcov. This was made easier with the addition of the --json-format to gcov in GCC 9.0, however the lax backwards compatibility for gcov's intermediary options is a bit concerning. Hopefully --json-format sticks around for a while.
211 lines
5.0 KiB
Makefile
211 lines
5.0 KiB
Makefile
ifdef BUILDDIR
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# make sure BUILDDIR ends with a slash
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override BUILDDIR := $(BUILDDIR)/
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# bit of a hack, but we want to make sure BUILDDIR directory structure
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# is correct before any commands
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$(if $(findstring n,$(MAKEFLAGS)),, $(shell mkdir -p \
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$(BUILDDIR) \
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$(BUILDDIR)bd \
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$(BUILDDIR)runners \
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$(BUILDDIR)tests))
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endif
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# overridable target/src/tools/flags/etc
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ifneq ($(wildcard test.c main.c),)
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TARGET ?= $(BUILDDIR)lfs
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else
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TARGET ?= $(BUILDDIR)lfs.a
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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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CTAGS ?= ctags
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NM ?= nm
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OBJDUMP ?= objdump
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LCOV ?= lcov
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SRC ?= $(filter-out $(wildcard *.*.c),$(wildcard *.c))
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OBJ := $(SRC:%.c=$(BUILDDIR)%.o)
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DEP := $(SRC:%.c=$(BUILDDIR)%.d)
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ASM := $(SRC:%.c=$(BUILDDIR)%.s)
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CGI := $(SRC:%.c=$(BUILDDIR)%.ci)
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TAGCDA := $(SRC:%.c=$(BUILDDIR)%.t.a.gcda)
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TESTS ?= $(wildcard tests/*.toml)
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TEST_SRC ?= $(SRC) \
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$(filter-out $(wildcard bd/*.*.c),$(wildcard bd/*.c)) \
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runners/test_runner.c
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TEST_TSRC := $(TESTS:%.toml=$(BUILDDIR)%.t.c) $(TEST_SRC:%.c=$(BUILDDIR)%.t.c)
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TEST_TASRC := $(TEST_TSRC:%.t.c=%.t.a.c)
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TEST_TAOBJ := $(TEST_TASRC:%.t.a.c=%.t.a.o)
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TEST_TADEP := $(TEST_TASRC:%.t.a.c=%.t.a.d)
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TEST_TAGCNO := $(TEST_TASRC:%.t.a.c=%.t.a.gcno)
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TEST_TAGCDA := $(TEST_TASRC:%.t.a.c=%.t.a.gcda)
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ifdef DEBUG
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override CFLAGS += -O0
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else
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override CFLAGS += -Os
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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 += -g3
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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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override CFLAGS += -ftrack-macro-expansion=0
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override TESTFLAGS += -b
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# forward -j flag
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override TESTFLAGS += $(filter -j%,$(MAKEFLAGS))
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ifdef VERBOSE
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override TESTFLAGS += -v
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override CODEFLAGS += -v
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override DATAFLAGS += -v
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override STACKFLAGS += -v
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override STRUCTSFLAGS += -v
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override COVERAGEFLAGS += -v
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override TESTFLAGS += -v
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override TESTCFLAGS += -v
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endif
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ifdef EXEC
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override TESTFLAGS += --exec="$(EXEC)"
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endif
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ifdef COVERAGE
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override TESTFLAGS += --coverage
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endif
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ifdef BUILDDIR
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override TESTFLAGS += --build-dir="$(BUILDDIR:/=)"
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override CODEFLAGS += --build-dir="$(BUILDDIR:/=)"
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override DATAFLAGS += --build-dir="$(BUILDDIR:/=)"
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override STACKFLAGS += --build-dir="$(BUILDDIR:/=)"
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override STRUCTSFLAGS += --build-dir="$(BUILDDIR:/=)"
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override COVERAGEFLAGS += --build-dir="$(BUILDDIR:/=)"
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endif
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ifneq ($(NM),nm)
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override CODEFLAGS += --nm-tool="$(NM)"
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override DATAFLAGS += --nm-tool="$(NM)"
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endif
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ifneq ($(OBJDUMP),objdump)
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override STRUCTSFLAGS += --objdump-tool="$(OBJDUMP)"
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endif
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# commands
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.PHONY: all build
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all build: $(TARGET)
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.PHONY: asm
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asm: $(ASM)
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.PHONY: size
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size: $(OBJ)
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$(SIZE) -t $^
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.PHONY: tags
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tags:
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$(CTAGS) --totals --c-types=+p $(shell find -H -name '*.h') $(SRC)
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.PHONY: test-runner
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test-runner: override CFLAGS+=--coverage
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test-runner: $(BUILDDIR)runners/test_runner
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.PHONY: test
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test: test-runner
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rm -f $(TEST_TAGCDA)
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./scripts/test.py --runner=$(BUILDDIR)runners/test_runner $(TESTFLAGS)
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.PHONY: test-list
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test-list: test-runner
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./scripts/test.py --runner=$(BUILDDIR)runners/test_runner $(TESTFLAGS) -l
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.PHONY: code
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code: $(OBJ)
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./scripts/code.py $^ -S $(CODEFLAGS)
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.PHONY: data
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data: $(OBJ)
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./scripts/data.py $^ -S $(DATAFLAGS)
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.PHONY: stack
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stack: $(CGI)
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./scripts/stack.py $^ -S $(STACKFLAGS)
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.PHONY: structs
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structs: $(OBJ)
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./scripts/structs.py $^ -S $(STRUCTSFLAGS)
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.PHONY: coverage
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coverage: $(TAGCDA)
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./scripts/coverage.py $^ -s $(COVERAGEFLAGS)
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.PHONY: summary
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summary: $(BUILDDIR)lfs.csv
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./scripts/summary.py -Y $^ $(SUMMARYFLAGS)
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# rules
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-include $(DEP)
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-include $(TEST_TADEP)
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.SUFFIXES:
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.SECONDARY:
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$(BUILDDIR)lfs: $(OBJ)
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$(CC) $(CFLAGS) $^ $(LFLAGS) -o $@
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$(BUILDDIR)lfs.a: $(OBJ)
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$(AR) rcs $@ $^
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$(BUILDDIR)lfs.csv: $(OBJ) $(CGI)
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./scripts/code.py $(OBJ) -q $(CODEFLAGS) -o $@
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./scripts/data.py $(OBJ) -q -m $@ $(DATAFLAGS) -o $@
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./scripts/stack.py $(CGI) -q -m $@ $(STACKFLAGS) -o $@
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./scripts/structs.py $(OBJ) -q -m $@ $(STRUCTSFLAGS) -o $@
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$(if $(COVERAGE),\
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./scripts/coverage.py $(BUILDDIR)tests/*.toml.info \
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-q -m $@ $(COVERAGEFLAGS) -o $@)
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$(BUILDDIR)runners/test_runner: $(TEST_TAOBJ)
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$(CC) $(CFLAGS) $^ $(LFLAGS) -o $@
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# our main build rule generates .o, .d, and .ci files, the latter
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# used for stack analysis
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$(BUILDDIR)%.o $(BUILDDIR)%.ci: %.c
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$(CC) -c -MMD -fcallgraph-info=su $(CFLAGS) $< -o $(BUILDDIR)$*.o
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$(BUILDDIR)%.s: %.c
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$(CC) -S $(CFLAGS) $< -o $@
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$(BUILDDIR)%.a.c: %.c
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./scripts/explode_asserts.py $< -o $@
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$(BUILDDIR)%.a.c: $(BUILDDIR)%.c
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./scripts/explode_asserts.py $< -o $@
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$(BUILDDIR)%.t.c: %.toml
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./scripts/test.py -c $< $(TESTCFLAGS) -o $@
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$(BUILDDIR)%.t.c: %.c $(TESTS)
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./scripts/test.py -c $(TESTS) -s $< $(TESTCFLAGS) -o $@
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# clean everything
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.PHONY: clean
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clean:
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rm -f $(BUILDDIR)lfs
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rm -f $(BUILDDIR)lfs.a
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rm -f $(BUILDDIR)lfs.csv
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rm -f $(BUILDDIR)runners/test_runner
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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 $(CGI)
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rm -f $(TEST_TSRC)
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rm -f $(TEST_TASRC)
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rm -f $(TEST_TAOBJ)
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rm -f $(TEST_TADEP)
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rm -f $(TEST_TAGCNO)
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rm -f $(TEST_TAGCDA)
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