lcov-1.7 into third_party for code coverage on POSIX systems....

third_party/lcov/example/Makefile

Index: third_party/lcov/example/Makefile
===================================================================
--- third_party/lcov/example/Makefile	(revision 0)
+++ third_party/lcov/example/Makefile	(revision 0)
@@ -0,0 +1,98 @@
+#
+# Makefile for the LCOV example program.
+#
+# Make targets:
+#   - example: compile the example program
+#   - output:  run test cases on example program and create HTML output
+#   - clean:   clean up directory
+#
+
+CC      := gcc
+CFLAGS  := -Wall -I. -fprofile-arcs -ftest-coverage
+
+LCOV    := ../bin/lcov
+GENHTML := ../bin/genhtml
+GENDESC := ../bin/gendesc
+GENPNG  := ../bin/genpng
+
+# Depending on the presence of the GD.pm perl module, we can use the
+# special option '--frames' for genhtml
+USE_GENPNG := $(shell $(GENPNG) --help >/dev/null 2>/dev/null; echo $$?)
+
+ifeq ($(USE_GENPNG),0)
+  FRAMES := --frames
+else
+  FRAMES :=
+endif
+
+.PHONY: clean output test_noargs test_2_to_2000 test_overflow
+
+all: output
+
+example: example.o iterate.o gauss.o
+	$(CC) example.o iterate.o gauss.o -o example -lgcov
+
+example.o: example.c iterate.h gauss.h
+	$(CC) $(CFLAGS) -c example.c -o example.o
+
+iterate.o: methods/iterate.c iterate.h
+	$(CC) $(CFLAGS) -c methods/iterate.c -o iterate.o
+
+gauss.o: methods/gauss.c gauss.h
+	$(CC) $(CFLAGS) -c methods/gauss.c -o gauss.o
+
+output: example descriptions test_noargs test_2_to_2000 test_overflow
+	@echo
+	@echo '*'
+	@echo '* Generating HTML output'
+	@echo '*'
+	@echo
+	$(GENHTML) trace_noargs.info trace_args.info trace_overflow.info \
+		   --output-directory output --title "Basic example" \
+		   --show-details --description-file descriptions $(FRAMES) \
+		   --legend
+	@echo
+	@echo '*'
+	@echo '* See '`pwd`/output/index.html
+	@echo '*'
+	@echo
+
+descriptions: descriptions.txt
+	$(GENDESC) descriptions.txt -o descriptions
+
+all_tests: example test_noargs test_2_to_2000 test_overflow
+
+test_noargs:
+	@echo
+	@echo '*'
+	@echo '* Test case 1: running ./example without parameters'
+	@echo '*'
+	@echo
+	$(LCOV) --zerocounters --directory .
+	./example
+	$(LCOV) --capture --directory . --output-file trace_noargs.info --test-name test_noargs
+
+test_2_to_2000:
+	@echo
+	@echo '*'
+	@echo '* Test case 2: running ./example 2 2000'
+	@echo '*'
+	@echo
+	$(LCOV) --zerocounters --directory .
+	./example 2 2000
+	$(LCOV) --capture --directory . --output-file trace_args.info --test-name test_2_to_2000
+
+test_overflow:
+	@echo
+	@echo '*'
+	@echo '* Test case 3: running ./example 0 100000 (causes an overflow)'
+	@echo '*'
+	@echo
+	$(LCOV) --zerocounters --directory .
+	./example 0 100000 || true
+	$(LCOV) --capture --directory . --output-file trace_overflow.info --test-name "test_overflow"
+
+clean:
+	rm -rf *.o *.bb *.bbg *.da *.gcno *.gcda *.info output example \
+	descriptions
+