refs[t:2673] check how valgrind detects memory leaks

git-svn-id: file:///svn/toku/tokudb@20751 c7de825b-a66e-492c-adef-691d508d4ae1

linux/tests/Makefile

@@ -32,9 +32,6 @@ INVERTER=;test $$? -ne 0
 all: $(TARGETS)
 
 %: %.c
-	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ $< $(LDFLAGS)
-
-test-gettime: test-gettime.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ $< $(LDFLAGS) -lrt
 
 .PHONY: check build
@@ -47,7 +44,7 @@ test-pwrite4g.tdbrun: TEST_EXTRA_ARGS=.
 ifeq ($(VGRIND),)
 	./$< $(TEST_EXTRA_ARGS) $(SUMMARIZE_CMD)
 else
-	$(VGRIND) --error-exitcode=1 --quiet --leak-check=full --log-file=$<.check.valgrind ./$< $(TEST_EXTRA_ARGS) >$<.check.output 2>&1; \
+	$(VGRIND) --error-exitcode=1 --quiet --leak-check=full -show-reachable=yes --log-file=$<.check.valgrind ./$< $(TEST_EXTRA_ARGS) >$<.check.output 2>&1; \
 	if [ $$? = 0 ] ; then \
 		lines=`cat $<.check.valgrind | wc -l`; \
 		if [ $$lines -ne 0 ] ; then cat $<.check.valgrind; test 0 = 1; fi \
@@ -58,11 +55,26 @@ else
 endif
 
 # check to see if that logic makes an error when there is a leak.
-try-leak.tdbrun: try-leak
+try-leak-lost.tdbrun: try-leak-lost
+ifeq ($(VGRIND),)
+	./$< $(SUMMARIZE_SHOULD_FAIL)
+else
+	$(VGRIND) --error-exitcode=1 --quiet --leak-check=full --show-reachable=yes --log-file=$<.check.valgrind ./$< >$<.check.output 2>&1; \
+	if [ $$? = 0 ] ; then \
+		lines=`cat $<.check.valgrind | wc -l`; \
+		if [ $$lines -ne 0 ] ; then cat $<.check.valgrind; test 0 = 1; fi \
+	else \
+	        test 0 = 1; \
+	fi \
+	$(INVERTER) \
+	$(SUMMARIZE_SHOULD_FAIL)
+endif
+
+try-leak-reachable.tdbrun: try-leak-reachable
 ifeq ($(VGRIND),)
-	./$< $(SUMMARIZE_CMD)
+	./$< $(SUMMARIZE_SHOULD_FAIL)
 else
-	$(VGRIND) --error-exitcode=1 --quiet --leak-check=full --log-file=$<.check.valgrind ./$< >$<.check.output 2>&1; \
+	$(VGRIND) --error-exitcode=1 --quiet --leak-check=full --show-reachable=yes --log-file=$<.check.valgrind ./$< >$<.check.output 2>&1; \
 	if [ $$? = 0 ] ; then \
 		lines=`cat $<.check.valgrind | wc -l`; \
 		if [ $$lines -ne 0 ] ; then cat $<.check.valgrind; test 0 = 1; fi \

linux/tests/try-leak-reachable.c

+#include <stdlib.h>
+
+static void *vp;
+
+int main(void) {
+    vp = malloc(42);
+    return 0;
+}