[meta-intel] Mohonpeak64 DPDK Build Failure

[Ashish Dalela (adalela)]

Hi Rahul,

Will you be able to get me the patch?

Thanks

From: Ashish Dalela (adalela)
Sent: Monday, July 18, 2016 6:01 PM
To: 'Gupta, Rahul KumarXX' <rahul.kumarxx.gupta at intel.com>; meta-intel at yoctoproject.org
Cc: Tan, Raymond <raymond.tan at intel.com>; Pradeep Munakala (pmunakal) <pmunakal at cisco.com>
Subject: RE: Mohonpeak64 DPDK Build Failure


Thanks Rahul.

I had indeed updated the do_configure_preprend() as follows:

do_configure_prepend () {
        sed -e "s#CONFIG_RTE_LIBRTE_POWER=y#CONFIG_RTE_LIBRTE_POWER=${CONFIG_EXAMPLE_VM_POWER_MANAGER}#" -i ${S}/config/common_linuxapp
       echo "CONFIG_RTE_BUILD_SHARED_LIB=y" >> ${S}/config/common_linuxapp
}

I had forgotten I made this change, but I was able to get a successful static build after removing the shared lib change. I, however, want to build shared libs.

I made the change you suggested to dpdk-16.04/mk/rte.lib.mk and I see the error in the install stage:

install: cannot stat '/home/adalela/poky15/build/tmp/work/mohonpeak64-poky-linux/dpdk/16.04-r0/dpdk-16.04/x86_64-ivshmem-linuxapp-gcc/lib/*.a': No such file or directory

I will wait for your patch. Thanks for the help.

Ashish


From: Gupta, Rahul KumarXX [mailto:rahul.kumarxx.gupta at intel.com]
Sent: Monday, July 18, 2016 3:33 PM
To: Ashish Dalela (adalela) <adalela at cisco.com<mailto:adalela at cisco.com>>; meta-intel at yoctoproject.org<mailto:meta-intel at yoctoproject.org>
Cc: Tan, Raymond <raymond.tan at intel.com<mailto:raymond.tan at intel.com>>
Subject: RE: Mohonpeak64 DPDK Build Failure

Then when I build dpdk, I get the following error in compile:

x86_64-poky-linux-gcc -m64 -Wl,--version-script=/home/adalela/poky15/build/tmp/work/mohonpeak64-poky-linux/dpdk/16.04-r0/dpdk-16.04/lib/librte_eal/linuxapp/eal/rte_eal_version.map -L/home/adalela/poky15/build/tmp/sysroots/mohonpeak64/usr/lib -shared eal.o eal_hugepage_info.o eal_memory.o eal_thread.o eal_log.o eal_pci.o eal_pci_uio.o eal_pci_vfio.o eal_pci_vfio_mp_sync.o eal_debug.o eal_lcore.o eal_timer.o eal_interrupts.o eal_alarm.o eal_ivshmem.o eal_common_lcore.o eal_common_timer.o eal_common_memzone.o eal_common_log.o eal_common_launch.o eal_common_pci.o eal_common_pci_uio.o eal_common_memory.o eal_common_tailqs.o eal_common_errno.o eal_common_cpuflags.o eal_common_string_fns.o eal_common_hexdump.o eal_common_devargs.o eal_common_dev.o eal_common_options.o eal_common_thread.o eal_common_proc.o rte_malloc.o malloc_elem.o malloc_heap.o rte_keepalive.o rte_cpuflags.o -ldl -lpthread -lgcc_s -lrt -Wl,-soname,librte_eal.so.2.1 -o librte_eal.so.2.1
/home/adalela/poky15/build/tmp/sysroots/x86_64-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/5.3.0/ld: cannot find crti.o: No such file or directory
/home/adalela/poky15/build/tmp/sysroots/x86_64-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/5.3.0/ld: cannot find crtbeginS.o: No such file or directory
/home/adalela/poky15/build/tmp/sysroots/x86_64-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/5.3.0/ld: cannot find /lib/libpthread.so.0
/home/adalela/poky15/build/tmp/sysroots/x86_64-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/5.3.0/ld: cannot find /usr/lib/libpthread_nonshared.a
collect2: error: ld returned 1 exit status
make[6]: *** [librte_eal.so.2.1] Error 1
make[5]: *** [eal] Error 2
make[5]: *** Waiting for unfinished jobs....



It looks that you are building the shared library for lib_rte_eal. It is built static by default.  I can reproduce this problem when building shared librte_eal.so and will send a patch to fix it soon.



Can you try changing CONFIG_RTE_BUILD_SHARED_LIB to "n" in the dpdk config? This will ensure that the libs are built statically.



If you want to build shared libs, you may have to pass EXTRA_CFLAGS in rte Makefile like such:

# Override the definition of LD here, since we're linking with CC
-LD := $(CC) $(CPU_CFLAGS) $(EXTRA_CFLAGS)
+LD := $(CC) $(CPU_CFLAGS)

Thanks,
Rahul Kumar Gupta

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