Fix running the bionic benchmarks on the host.

Bug: 18556607
Change-Id: I4e75bfcde788b43e1926be1b0146acf09b496390
diff --git a/benchmarks/Android.mk b/benchmarks/Android.mk
index 00250a5..eb39a85 100644
--- a/benchmarks/Android.mk
+++ b/benchmarks/Android.mk
@@ -63,13 +63,13 @@
 endif
 
 bionic-benchmarks-run-on-host: bionic-benchmarks $(TARGET_OUT_EXECUTABLES)/$(LINKER) $(TARGET_OUT_EXECUTABLES)/sh
-	if [ ! -d /system -o ! -d /system/bin ]; then \
-	  echo "Attempting to create /system/bin"; \
-	  sudo mkdir -p -m 0777 /system/bin; \
+	if [ ! -d /system ]; then \
+	  echo "Attempting to create /system"; \
+	  sudo mkdir -p -m 0777 /system; \
 	fi
 	mkdir -p $(TARGET_OUT_DATA)/local/tmp
-	cp $(TARGET_OUT_EXECUTABLES)/$(LINKER) /system/bin
-	cp $(TARGET_OUT_EXECUTABLES)/sh /system/bin
+	ln -fs `realpath $(TARGET_OUT)/bin` /system/
+	ln -fs `realpath $(TARGET_OUT)/etc` /system/
 	ANDROID_DATA=$(TARGET_OUT_DATA) \
 	ANDROID_ROOT=$(TARGET_OUT) \
 	LD_LIBRARY_PATH=$(TARGET_OUT_SHARED_LIBRARIES) \