More Makefile clean-up (#7066)

Summary:
(a) use STRESS_LIBRARY for db_stress and make sure
STRESS_LIBRARY has other stress test dependencies (as in buck build)

(b) fix rpath option to be accepted on MacOS. It still doesn't fully work
for me e.g. to run a LIB_MODE=shared unit test binary from another
directory, as it does on Linux, but the option is now accepted, and running
unit tests from current directory works for me.

Also adding LIB_MODE=shared to Travis. (Later TBD where best to fit in
in CircleCI.)
Pull Request resolved: https://github.com/facebook/rocksdb/pull/7066

Test Plan: manual

Reviewed By: cheng-chang

Differential Revision: D22364068

Pulled By: pdillinger

fbshipit-source-id: 6fa98a222f89f808ee786474de1100d92c1adec3

.travis.yml

@@ -278,7 +278,7 @@ script:
       OPT="-DTRAVIS -DROCKSDB_NAMESPACE=alternative_rocksdb_ns" V=1 make -j4 tools && OPT="-DTRAVIS -DROCKSDB_NAMESPACE=alternative_rocksdb_ns" V=1 ROCKSDBTESTS_START=db_iter_test ROCKSDBTESTS_END=options_file_test make -j4 check_some
       ;;
     3)
-      OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=options_file_test ROCKSDBTESTS_END=write_prepared_transaction_test make -j4 check_some
+      OPT=-DTRAVIS LIB_MODE=shared V=1 ROCKSDBTESTS_START=options_file_test ROCKSDBTESTS_END=write_prepared_transaction_test make -j4 check_some
       ;;
     4)
       OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=write_prepared_transaction_test make -j4 check_some

Makefile

@@ -288,7 +288,7 @@ endif
 
 ifeq ($(LIB_MODE),shared)
 # So that binaries are executable from build location, in addition to install location
-EXEC_LDFLAGS += -Wl,-rpath='$$ORIGIN'
+EXEC_LDFLAGS += -Wl,-rpath -Wl,'$$ORIGIN'
 endif
 
 # ASAN doesn't work well with jemalloc. If we're compiling with ASAN, we should use regular malloc.
@@ -1164,9 +1164,15 @@ $(STATIC_TOOLS_LIBRARY): $(BENCH_OBJECTS) $(TOOL_OBJECTS) $(TESTUTIL)
 	$(AM_V_AR)rm -f $@ $(SHARED_TOOLS_LIBRARY)
 	$(AM_V_at)$(AR) $(ARFLAGS) $@ $^
 
+ifeq ($(DEBUG_LEVEL),0)
 $(STATIC_STRESS_LIBRARY): $(TESTUTIL) $(ANALYZE_OBJECTS) $(STRESS_OBJECTS)
 	$(AM_V_AR)rm -f $@ $(SHARED_STRESS_LIBRARY)
 	$(AM_V_at)$(AR) $(ARFLAGS) $@ $^
+else
+$(STATIC_STRESS_LIBRARY): $(TEST_OBJECTS) $(ANALYZE_OBJECTS) $(STRESS_OBJECTS)
+	$(AM_V_AR)rm -f $@ $(SHARED_STRESS_LIBRARY)
+	$(AM_V_at)$(AR) $(ARFLAGS) $@ $^
+endif
 
 $(SHARED_TEST_LIBRARY): $(TEST_OBJECTS) $(SHARED1)
 	$(AM_V_AR)rm -f $@ $(STATIC_TEST_LIBRARY)
@@ -1176,9 +1182,15 @@ $(SHARED_TOOLS_LIBRARY): $(TOOL_OBJECTS) $(TESTUTIL) $(SHARED1)
 	$(AM_V_AR)rm -f $@ $(STATIC_TOOLS_LIBRARY)
 	$(AM_SHARE)
 
-$(SHARED_STRESS_LIBRARY): $(TESTUTIL) $(ANALYZE_OBJECTS) $(STRESS_OBJECTS) $(SHARED1)
+ifeq ($(DEBUG_LEVEL),0)
+$(SHARED_STRESS_LIBRARY): $(ANALYZE_OBJECTS) $(STRESS_OBJECTS) $(SHARED_TOOLS_LIBRARY) $(SHARED1)
 	$(AM_V_AR)rm -f $@ $(STATIC_STRESS_LIBRARY)
 	$(AM_SHARE)
+else
+$(SHARED_STRESS_LIBRARY): $(ANALYZE_OBJECTS) $(STRESS_OBJECTS) $(SHARED_TOOLS_LIBRARY) $(TEST_LIBRARY) $(SHARED1)
+	$(AM_V_AR)rm -f $@ $(STATIC_STRESS_LIBRARY)
+	$(AM_SHARE)
+endif
 
 librocksdb_env_basic_test.a: $(OBJ_DIR)/env/env_basic_test.o $(LIB_OBJECTS) $(TESTHARNESS)
 	$(AM_V_AR)rm -f $@
@@ -1210,13 +1222,9 @@ memtablerep_bench: $(OBJ_DIR)/memtable/memtablerep_bench.o $(TESTUTIL) $(LIBRARY
 filter_bench: $(OBJ_DIR)/util/filter_bench.o $(LIBRARY)
 	$(AM_LINK)
 
-ifeq ($(DEBUG_LEVEL),0)
-db_stress: $(OBJ_DIR)/db_stress_tool/db_stress.o $(STRESS_OBJECTS) $(TESTUTIL) $(LIBRARY)
+db_stress: $(OBJ_DIR)/db_stress_tool/db_stress.o $(STRESS_LIBRARY) $(LIBRARY)
 	$(AM_LINK)
-else
-db_stress: $(OBJ_DIR)/db_stress_tool/db_stress.o $(STRESS_OBJECTS) $(TEST_LIBRARY) $(LIBRARY)
-	$(AM_LINK)
-endif
+
 write_stress: $(OBJ_DIR)/tools/write_stress.o $(LIBRARY)
 	$(AM_LINK)