dpdk: fix link error

/usr/bin/ld: -f may not be used without -shared
collect2: error: ld returned 1 exit status

Indeed an extra "-fPIC" is given to ld, see the -Wl,-fPIC below:

gcc -pie -fPIC -pthread  -march=native -DRTE_MACHINE_CPUFLAG_SSE -DRTE_MACHINE_CPUFLAG_SSE2 -DRTE_MACHINE_CPUFLAG_SSE3 -DRTE_MACHINE_CPUFLAG_SSSE3 -DRTE_MACHINE_CPUFLAG_SSE4_1 -DRTE_MACHINE_CPUFLAG_SSE4_2 -DRTE_MACHINE_CPUFLAG_AES -DRTE_MACHINE_CPUFLAG_PCLMULQDQ -DRTE_MACHINE_CPUFLAG_AVX -DRTE_COMPILE_TIME_CPUFLAGS=RTE_CPUFLAG_SSE,RTE_CPUFLAG_SSE2,RTE_CPUFLAG_SSE3,RTE_CPUFLAG_SSSE3,RTE_CPUFLAG_SSE4_1,RTE_CPUFLAG_SSE4_2,RTE_CPUFLAG_AES,RTE_CPUFLAG_PCLMULQDQ,RTE_CPUFLAG_AVX  -I/home/jmg/dev/vpp/build-root/install-vpp_debug-native/dpdk/include -include /home/jmg/dev/vpp/build-root/install-vpp_debug-native/dpdk/include/rte_config.h -O3 -W -Wall -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -D_GNU_SOURCE  -Wl,-Map=test.map,--cref -o test commands.o test.o test_pci.o test_prefetch.o test_byteorder.o test_per_lcore.o test_atomic.o test_malloc.o test_cycles.o test_spinlock.o test_memory.o test_memzone.o test_ring.o test_ring_perf.o test_pmd_perf.o test_rwlock.o test_mempool.o test_mempool_perf.o test_mbuf.o test_logs.o test_memcpy.o test_memcpy_perf.o test_hash.o test_thash.o test_hash_perf.o test_hash_functions.o test_hash_scaling.o test_debug.o test_errno.o test_tailq.o test_string_fns.o test_cpuflags.o test_mp_secondary.o test_eal_flags.o test_eal_fs.o test_alarm.o test_interrupts.o test_version.o test_func_reentrancy.o test_cmdline.o test_cmdline_num.o test_cmdline_etheraddr.o test_cmdline_portlist.o test_cmdline_ipaddr.o test_cmdline_cirbuf.o test_cmdline_string.o test_cmdline_lib.o test_red.o test_sched.o test_meter.o test_kni.o test_common.o test_devargs.o virtual_pmd.o packet_burst_generator.o test_link_bonding.o test_link_bonding_mode4.o test_link_bonding_rssconf.o test_pmd_ring.o test_pmd_ring_perf.o test_cryptodev_perf.o test_cryptodev.o test_kvargs.o -Wl,-pie -Wl,-fPIC -Wl,--no-as-needed -Wl,-export-dynamic -L/home/jmg/dev/vpp/build-root/install-vpp_debug-native/dpdk/lib -Wl,-g -L/home/jmg/dev/vpp/build-root/install-vpp_debug-native/dpdk/lib -Wl,--whole-archive -Wl,-ldpdk -Wl,--start-group -Wl,-lrt -Wl,-lm -Wl,-ldl -Wl,--end-group -Wl,--no-whole-archive

Fixed by unsetting the flags -pie -fPIC out of LDFLAGS, these are not
options for the linker.

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.3.1-10ubuntu2' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.3.1 20160225 (Ubuntu 5.3.1-10ubuntu2)

Change-Id: Iffbebfbb625e8831822ec092bea88dea42f12930
Signed-off-by: Jean-Mickael Guerin <jean-mickael.guerin@6wind.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/dpdk/Makefile b/dpdk/Makefile
index 307faf06..a07e8615 100644
--- a/dpdk/Makefile
+++ b/dpdk/Makefile
@@ -34,7 +34,7 @@ JOBS := $(shell grep processor /proc/cpuinfo | wc -l)
 
 # compiler/linker custom arguments
 DPDK_CPU_CFLAGS := -pie -fPIC
-DPDK_CPU_LDFLAGS := -pie -fPIC
+DPDK_CPU_LDFLAGS :=
 DPDK_EXTRA_LDFLAGS := -g
 
 ifeq ($(DPDK_DEBUG),n)