From 88d6ce2bee53b7c9f876aa78c5db8ab1ea75c08a Mon Sep 17 00:00:00 2001 From: "Lijian.Zhang" Date: Thu, 30 Apr 2020 14:52:15 +0800 Subject: dpdk: fix compiling issue with clang When building vpp image with below command, clang reports warnings/errors on the unused option '-L', as it's not linking stage, and does not require linking libraries. In dpdk.mk, the linking library path should be attached to DPDK_EXTRA_LDFLAGS, instead of DPDK_EXTRA_CFLAGS $ make build-release CC=clang V=1 clang -Wp,-MD,./.ark_ddm.o.d.tmp -fPIE -fPIC -pthread -I/root/origin/build-root/build-vpp-native/external/dpdk-20.02/lib/librte_eal/linux/eal/include -march=armv8-a+crc -DRTE_MACHINE_CPUFLAG_NEON -DRTE_MACHINE_CPUFLAG_CRC32 -I/root/origin/build-root/build-vpp-native/external/dpdk-20.02/arm64-armv8a-linuxapp-clang/include -DRTE_USE_FUNCTION_VERSIONING -include /root/origin/build-root/build-vpp-native/external/dpdk-20.02/arm64-armv8a-linuxapp-clang/include/rte_config.h -D_GNU_SOURCE -O3 -I./ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wdeprecated -Wno-missing-field-initializers -Wno-address-of-packed-member -Werror -g -mtune=generic -L/root/origin/build-root/install-vpp-native/external/lib -I/root/origin/build-root/install-vpp-native/external/include -o ark_ddm.o -c /root/origin/build-root/build-vpp-native/external/dpdk-20.02/drivers/net/ark/ark_ddm.c == Build drivers/vdpa/ifc clang: warning: argument unused during compilation: '-L/root/origin/build-root/install-vpp-native/external/lib' [-Wunused-command-line-argument] clang: error: argument unused during compilation: '-L/root/origin/build-root/install-vpp-native/external/lib' [-Werror,-Wunused-command-line-argument] Type: fix Change-Id: If8fd9b19d0aff9d3c27d77e78cd3064bb1ad6565 Signed-off-by: Lijian Zhang Reviewed-by: Jieqiang Wang Reviewed-by: Govindarajan Mohandoss --- build/external/packages/dpdk.mk | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/build/external/packages/dpdk.mk b/build/external/packages/dpdk.mk index 20a7aa2d653..c4e6dc76913 100644 --- a/build/external/packages/dpdk.mk +++ b/build/external/packages/dpdk.mk @@ -155,7 +155,8 @@ endif endif endif -DPDK_EXTRA_CFLAGS += -L$(I)/lib -I$(I)/include +DPDK_EXTRA_CFLAGS += -I$(I)/include +DPDK_EXTRA_LDFLAGS += -L$(I)/lib # assemble DPDK make arguments DPDK_MAKE_ARGS := -C $(DPDK_SOURCE) -j $(JOBS) \ -- cgit 1.2.3-korg