ART: Use TMPDIR for test directories

Bug: 16499668
Change-Id: I0d3db4697ef7b1706807e7daa5e000bb89df14e0

Android.mk

@@ -67,8 +67,13 @@ ifdef TARGET_2ND_ARCH
 	rm -f $(2ND_TARGET_OUT_INTERMEDIATES)/JAVA_LIBRARIES/*_intermediates/javalib.odex
 	rm -f $(2ND_TARGET_OUT_INTERMEDIATES)/APPS/*_intermediates/*.odex
 endif
+ifneq ($(TMPDIR),)
+	rm -rf $(TMPDIR)/$(USER)/test-*/dalvik-cache/*
+	rm -rf $(TMPDIR)/android-data/dalvik-cache/*
+else
 	rm -rf /tmp/$(USER)/test-*/dalvik-cache/*
 	rm -rf /tmp/android-data/dalvik-cache/*
+endif
 
 .PHONY: clean-oat-target
 clean-oat-target:

runtime/common_runtime_test.cc

@@ -137,7 +137,17 @@ void CommonRuntimeTest::SetEnvironmentVariables(std::string& android_data) {
   }
 
   // On target, Cannot use /mnt/sdcard because it is mounted noexec, so use subdir of dalvik-cache
-  android_data = (IsHost() ? "/tmp/art-data-XXXXXX" : "/data/dalvik-cache/art-data-XXXXXX");
+  if (IsHost()) {
+    const char* tmpdir = getenv("TMPDIR");
+    if (tmpdir != nullptr && tmpdir[0] != 0) {
+      android_data = tmpdir;
+    } else {
+      android_data = "/tmp";
+    }
+  } else {
+    android_data = "/data/dalvik-cache";
+  }
+  android_data += "/art-data-XXXXXX";
   if (mkdtemp(&android_data[0]) == nullptr) {
     PLOG(FATAL) << "mkdtemp(\"" << &android_data[0] << "\") failed";
   }

test/run-test

@@ -33,7 +33,11 @@ cd "${progdir}"
 progdir=`pwd`
 prog="${progdir}"/`basename "${prog}"`
 test_dir="test-$$"
-tmp_dir="/tmp/$USER/${test_dir}"
+if [ -z "$TMPDIR" ]; then
+  tmp_dir="/tmp/$USER/${test_dir}"
+else
+  tmp_dir="${TMPDIR}/$USER/${test_dir}"
+fi
 
 export JAVA="java"
 export JAVAC="javac -g"