--- /dev/null
+++ libmalloc/libmalloc-140.1.1/tests/Makefile
@@ -0,0 +1,76 @@
+PROJECT := libmalloc
+TEST_DIR := tests/
+
+DEVELOPER_DIR ?= /Applications/Xcode.app/Contents/Developer/
+
+include $(DEVELOPER_DIR)/AppleInternal/Makefiles/darwintest/Makefile.common
+
+MALLOCBENCH_SOURCE := $(wildcard MallocBench/*.cpp)
+EXCLUDED_SOURCES := MallocBench.cpp
+CXX := $(shell $(XCRUN) -sdk "$(TARGETSDK)" -find clang++)
+
+OTHER_CFLAGS += \
+	-DDARWINTEST \
+	-DOS_UNFAIR_LOCK_INLINE=1 \
+	-lCrashReporterClient \
+	-I$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders \
+	-I$(SRCROOT)/../include/malloc
+
+$(OBJROOT)/MallocBench/%.o: MallocBench/%.cpp
+	@mkdir -p $(OBJROOT)/MallocBench
+	$(CXX) $(CFLAGS) -I$(SRCROOT)/MallocBench -std=gnu++11 -stdlib=libc++ -c -o $@ $<
+
+single-%: $(addprefix $(OBJROOT)/, $(MALLOCBENCH_SOURCE:.cpp=.o))
+	$(CXX) -c -o $(OBJROOT)/MallocBench-$@.o \
+		-I$(SRCROOT)/MallocBench \
+		$(CFLAGS) \
+		-DBENCHMARK_NAME=\"$*\" \
+		-DPARALLEL=false \
+		$(SRCROOT)/MallocBench.cpp
+	$(CXX) -o $(SYMROOT)/$@ \
+		$(CFLAGS) \
+		$^ \
+		$(OBJROOT)/MallocBench-$@.o
+
+parallel-%: $(addprefix $(OBJROOT)/, $(MALLOCBENCH_SOURCE:.cpp=.o))
+	$(CXX) -c -o $(OBJROOT)/MallocBench-$@.o \
+		-I$(SRCROOT)/MallocBench \
+		$(CFLAGS) \
+		-DBENCHMARK_NAME=\"$*\" \
+		-DPARALLEL=true \
+		$(SRCROOT)/MallocBench.cpp
+	$(CXX) -o $(SYMROOT)/$@ \
+		$(CFLAGS) \
+		$^ \
+		$(OBJROOT)/MallocBench-$@.o
+
+OTHER_TEST_TARGETS = \
+	single-churn \
+	single-list_allocate \
+	single-tree_allocate \
+	single-tree_churn \
+	single-fragment \
+	single-fragment_iterate \
+	single-message_one \
+	single-message_many \
+	parallel-churn \
+	parallel-list_allocate \
+	parallel-tree_allocate \
+	parallel-tree_churn \
+	parallel-fragment \
+	parallel-fragment_iterate
+
+#	single-medium \
+#	single-big \
+#	parallel-medium \
+#	parallel-big
+
+ASAN_DYLIB_PATH := /usr/local/lib/sanitizers/
+asan: OTHER_CFLAGS += -fsanitize=address
+asan: OTHER_LDFLAGS += -Wl,-rpath -Wl,$(ASAN_DYLIB_PATH)
+
+madvise: OTHER_CFLAGS += -I../src
+stack_logging_test: OTHER_CFLAGS += -I../private
+radix_tree_test: OTHER_CFLAGS += -I../src -framework Foundation
+
+include $(DEVELOPER_DIR)/AppleInternal/Makefiles/darwintest/Makefile.targets