diff --git a/Ubiquitous/XiZi_AIoT/services/net/net_server/Makefile b/Ubiquitous/XiZi_AIoT/services/net/net_server/Makefile
index 62852565b..6e3c9be23 100644
--- a/Ubiquitous/XiZi_AIoT/services/net/net_server/Makefile
+++ b/Ubiquitous/XiZi_AIoT/services/net/net_server/Makefile
@@ -53,11 +53,16 @@ arch_usyscall = $(KERNEL_ROOT)/services/app/arch_usyscall.o
 session = $(KERNEL_ROOT)/services/app/session.o
 libipc = $(KERNEL_ROOT)/services/app/libipc.o
 
-lwip: COMPILER lwip_server.o
+lwip: COMPILER lwip_server.o | bin
 	@${ld} ${user_ldflags} -e main -o $@ ${api} ${core} ${ipv4} ${netif} lwip_service.o lwip_server.o \
 		${board_specs} ${libserial} ${printf} ${libmem} ${usyscall} ${arch_usyscall} ${arch_usyscall} \
 		${session} ${libipc}
 	@${objdump} -S $@ > $@.asm
+	@mv *.o bin
+	@mv *.asm bin
+
+bin:
+	@mkdir -p bin
 
 %.o: %.c
 	@echo "cc $^"
diff --git a/Ubiquitous/XiZi_AIoT/services/net/net_server/lwip.mk b/Ubiquitous/XiZi_AIoT/services/net/net_server/lwip.mk
index c77a83f97..f8852ad32 100644
--- a/Ubiquitous/XiZi_AIoT/services/net/net_server/lwip.mk
+++ b/Ubiquitous/XiZi_AIoT/services/net/net_server/lwip.mk
@@ -1,6 +1,6 @@
 ifeq ($(BOARD), imx6q-sabrelite)
 toolchain ?= arm-none-eabi-
-user_ldflags = -N -Ttext 0
+user_ldflags = --specs=nosys.specs -Wl,-Map=user.map,-cref
 cflags = -std=c11 -march=armv7-a -mtune=cortex-a9 -nostdlib -ffreestanding -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
 endif
 ifeq ($(BOARD), zynq7000-zc702)