BFE EngineeringandClaude Opus 4.8
1752dea7b6
Bring relays.c into warden-sdk/drivers/ behind a relay_io seam (ADR-0005): the sysfs plumbing is an injectable backend, the gpio root is $WARDEN_GPIO_ROOT- overridable. Host harness (drivers/relays/test/) reaches 100% MC/DC (40/40 conditions, 100% lines) by combining fake-io unit tests (logic branches incl. export->node-appears) with real-sysfs integration tests over a scratch tree (backend fopen/stat branches). CI `mcdc` job enforces 100% across drivers/*/test. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
42 lines
1.4 KiB
Makefile
42 lines
1.4 KiB
Makefile
# MC/DC unit harness for drivers/relays/relays.c.
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#
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# make check — build, run, and FAIL unless relays.c hits 100% MC/DC
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# (condition) coverage and every unit check passes.
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# make report — per-condition gcov annotation (build/relays.c.gcov).
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# make clean
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#
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# Requires gcc >= 14 (for -fcondition-coverage) and its matching gcov.
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CC ?= gcc
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GCOV ?= gcov
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CFLAGS := -O0 -g -Wall -Wextra -I..
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COVFLAGS := --coverage -fcondition-coverage
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BUILD := build
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.PHONY: check report clean
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.DEFAULT_GOAL := check
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$(BUILD):
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@mkdir -p $(BUILD)
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# relays.c carries the coverage flags; the test driver is plain.
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$(BUILD)/test: test_relays.c ../relays.c ../relays.h | $(BUILD)
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@$(CC) $(CFLAGS) $(COVFLAGS) -c ../relays.c -o $(BUILD)/relays.o
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@$(CC) $(CFLAGS) -c test_relays.c -o $(BUILD)/test_relays.o
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@$(CC) $(COVFLAGS) $(BUILD)/relays.o $(BUILD)/test_relays.o -o $(BUILD)/test
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check: $(BUILD)/test
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@echo "== running relays MC/DC harness =="
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@rm -f $(BUILD)/relays.gcda
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@$(BUILD)/test; echo $$? > $(BUILD)/test.rc
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@echo
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@echo "== MC/DC (condition) coverage of relays.c =="
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@$(GCOV) --conditions --branch-probabilities -o $(BUILD) ../relays.c >$(BUILD)/gcov.log 2>&1 || true
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@mv -f *.gcov $(BUILD)/ 2>/dev/null || true
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@bash enforce-mcdc.sh $(BUILD)/gcov.log $(BUILD)/relays.c.gcov $(BUILD)/test.rc
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report: check
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@grep -nE "condition.*not covered|conditions covered" $(BUILD)/relays.c.gcov || true
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clean:
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@rm -rf $(BUILD)
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