Add a listxattr tool for listing xattrs

Change-Id: Ib80bab2b605ce77cd8fdc717d8bcfa8085516679
diff --git a/attr/Android.mk b/attr/Android.mk
new file mode 100644
index 0000000..2986ab5
--- /dev/null
+++ b/attr/Android.mk
@@ -0,0 +1,22 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := listxattr.c
+LOCAL_CFLAGS := -c -W
+LOCAL_MODULE := listxattr
+LOCAL_MODULE_TAGS := eng
+LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
+LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
+LOCAL_PACK_MODULE_RELOCATIONS := false
+
+ifneq ($(TARGET_ARCH), arm64)
+    ifneq ($(TARGET_ARCH), x86_64)
+        LOCAL_LDFLAGS += -Wl,-dynamic-linker,/sbin/linker
+    else
+        LOCAL_LDFLAGS += -Wl,-dynamic-linker,/sbin/linker64
+    endif
+else
+    LOCAL_LDFLAGS += -Wl,-dynamic-linker,/sbin/linker64
+endif
+
+include $(BUILD_EXECUTABLE)