diff --git a/Makefile.lib b/Makefile.lib
index cae428d4..683a26f0 100644
--- a/Makefile.lib
+++ b/Makefile.lib
@@ -10,6 +10,8 @@ ARCHIVE ?= $(LIB_DIR)/build/$(NAME)-$(ARCH).a
 
 INC_DIR += $(addsuffix /include/, $(addprefix $(AM_HOME)/libs/, $(LIBS)))
 
+CFLAGS += -fdata-sections -ffunction-sections
+
 $(shell mkdir -p $(DST_DIR))
 
 include $(AM_HOME)/Makefile.compile
diff --git a/am/arch/mips32-minimal/img/build b/am/arch/mips32-minimal/img/build
index bd1dd7f7..2a632c5b 100755
--- a/am/arch/mips32-minimal/img/build
+++ b/am/arch/mips32-minimal/img/build
@@ -6,4 +6,4 @@ shift
 
 bash -c "cd $DIR/boot && make"
 
-mips-linux-gnu-ld -EL -T $DIR/loader.ld -e _start -o $DEST $DIR/boot/start.o $@ && python $DIR/gen_coe.py $DEST
+mips-linux-gnu-ld --gc-sections -EL -T $DIR/loader.ld -e _start -o $DEST $DIR/boot/start.o $@ && python $DIR/gen_coe.py $DEST