[dpdk-dev] Pcap question
Olivier MATZ
olivier.matz at 6wind.com
Mon Mar 3 22:31:38 CET 2014
Hi Meir,
On 03/03/2014 10:09 PM, Meir Tseitlin wrote:
> -Wl,-lrte_pmd_pcap -Wl,-L/usr/local/lib -Wl,-Wl,-rpath,/usr/local/lib
> -Wl,-lpcap
The problem is related to the lines above. They are generated in
rte.app.mk:
ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y)
LDLIBS += -lrte_pmd_pcap
LIBPCAP_LDFLAGS ?= $(shell pcap-config --libs)
$(if $(LIBPCAP_LDFLAGS),,$(error LIBPCAP_LDFLAGS is undefined))
LDLIBS += $(LIBPCAP_LDFLAGS)
endif
The output of "pcap-config --libs" on your computer is probably:
-L/usr/local/lib -Wl,-rpath,/usr/local/lib -lpcap
The problem is that the DPDK makefile add the "-Wl," to convert the
linker arguments into gcc arguments. You may want to replace the
code above by:
ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y)
LDLIBS += -lrte_pmd_pcap
repl := -Wl,%
LIBPCAP_LDFLAGS ?= $(patsubst -Wl$(comma),%,$(shell pcap-config --libs))
$(if $(LIBPCAP_LDFLAGS),,$(error LIBPCAP_LDFLAGS is undefined))
LDLIBS += $(LIBPCAP_LDFLAGS)
endif
I don't know if it's the proper way to fix this. Maybe rte.app.mk
should take care of not adding "-Wl," if it's already there.
Regards,
Olivier
More information about the dev
mailing list