diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index 2d184c5..1d50991 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -2,7 +2,7 @@
 # Copyright (c) 2011 The Chromium OS Authors.
 
 PLATFORM_CPPFLAGS += -D__SANDBOX__ -U_FORTIFY_SOURCE
-PLATFORM_CPPFLAGS += -fPIC
+PLATFORM_CPPFLAGS += -fPIC -ffunction-sections -fdata-sections
 PLATFORM_LIBS += -lrt
 SDL_CONFIG ?= sdl2-config
 
@@ -30,7 +30,7 @@
 		$(u-boot-main) \
 		$(u-boot-keep-syms-lto) \
 	-Wl,--no-whole-archive \
-	$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map
+	$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -Wl,--gc-sections
 
 cmd_u-boot-spl = (cd $(obj) && $(CC) -o $(SPL_BIN) -Wl,-T u-boot-spl.lds \
 	$(KBUILD_LDFLAGS:%=-Wl,%) \