[dpdk-dev] [PATCH] Fix linking errors when CONFIG_RTE_BUILD_SHARED_LIB is enabled

Tetsuya Mukawa mukawa at igel.co.jp
Thu Oct 2 11:05:09 CEST 2014
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(2014/10/02 17:53), Sergio Gonzalez Monroy wrote:
> On Thu, Oct 02, 2014 at 05:28:04PM +0900, Tetsuya Mukawa wrote:
>> (2014/10/02 17:12), Sergio Gonzalez Monroy wrote:
>>> On Thu, Oct 02, 2014 at 11:48:37AM +0900, Tetsuya Mukawa wrote:
>>>
>>>> $ gcc -m64 -pthread -fPIC -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_MACHINE_CPUFLAG_F16C
>>>> -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,RTE_CPUFLAG_F16C
>>>> -I/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/include -include
>>>> /home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/include/rte_config.h
>>>> -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 -Wl,-Map=testacl.map,--cref
>>>> -o testacl main.o -Wl,-export-dynamic
>>>> -L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib
>>>> -L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib
>>>> -Wl,--whole-archive -Wl,-lrte_distributor -Wl,-lrte_kni
>>>> -Wl,-lrte_pipeline -Wl,-lrte_table -Wl,-lrte_port -Wl,-lrte_timer
>>>> -Wl,-lrte_hash -Wl,-lrte_lpm -Wl,-lrte_power -Wl,-lrte_acl
>>>> -Wl,-lrte_meter -Wl,-lrte_sched -Wl,-lm -Wl,-lrt -Wl,--start-group
>>>> -Wl,-lrte_kvargs -Wl,-lrte_mbuf -Wl,-lrte_ip_frag -Wl,-lethdev
>>>> -Wl,-lrte_malloc -Wl,-lrte_mempool -Wl,-lrte_ring -Wl,-lrte_eal
>>>> -Wl,-lrte_cmdline -Wl,-lrte_cfgfile -Wl,-lrte_pmd_bond -Wl,-lrt
>>>> -Wl,-lm -Wl,-lgcc_s -Wl,-ldl -Wl,--end-group -Wl,--no-whole-archive
>>>> /home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.so:
>>>> undefined reference to `rte_mempool_lookup'
>>>> /home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.so:
>>>> undefined reference to `rte_mempool_create' collect2: error: ld
>>>> returned 1 exit status 
>>> Hi Tetsuya,
>>>
>>> Would you mind posting the output of the last command adding the option '-v'?
>> Sure, here is.
>>
>> $ gcc -m64 -pthread -fPIC  -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_MACHINE_CPUFLAG_F16C
>> -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,RTE_CPUFLAG_F16C 
>> -I/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/include -include
>> /home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/include/rte_config.h -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  -Wl,-Map=testacl.map,--cref
>> -o testacl main.o -Wl,-export-dynamic
>> -L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib 
>> -L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib
>> -Wl,--whole-archive -Wl,-lrte_distributor -Wl,-lrte_kni
>> -Wl,-lrte_pipeline -Wl,-lrte_table -Wl,-lrte_port -Wl,-lrte_timer
>> -Wl,-lrte_hash -Wl,-lrte_lpm -Wl,-lrte_power -Wl,-lrte_acl
>> -Wl,-lrte_meter -Wl,-lrte_sched -Wl,-lm -Wl,-lrt -Wl,--start-group
>> -Wl,-lrte_kvargs -Wl,-lrte_mbuf -Wl,-lrte_ip_frag -Wl,-lethdev
>> -Wl,-lrte_malloc -Wl,-lrte_mempool -Wl,-lrte_ring -Wl,-lrte_eal
>> -Wl,-lrte_cmdline -Wl,-lrte_cfgfile -Wl,-lrte_pmd_bond -Wl,-lrt -Wl,-lm
>> -Wl,-lgcc_s -Wl,-ldl -Wl,--end-group -Wl,--no-whole-archive -v
>> Using built-in specs.
>> COLLECT_GCC=gcc
>> COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
>> Target: x86_64-linux-gnu
>> Configured with: ../src/configure -v --with-pkgversion='Ubuntu
>> 4.8.2-19ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs
>> --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
>> --program-suffix=-4.8 --enable-shared --enable-linker-build-id
>> --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
>> --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib
>> --enable-nls --with-sysroot=/ --enable-clocale=gnu
>> --enable-libstdcxx-debug --enable-libstdcxx-time=yes
>> --enable-gnu-unique-object --disable-libmudflap --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-4.8-amd64/jre
>> --enable-java-home
>> --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64
>> --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-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 --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 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
>> COMPILER_PATH=/usr/lib/gcc/x86_64-linux-gnu/4.8/:/usr/lib/gcc/x86_64-linux-gnu/4.8/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/4.8/:/usr/lib/gcc/x86_64-linux-gnu/
>> LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/4.8/:/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../lib/:/lib/x86_64-linux-gnu/:/lib/../lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../:/lib/:/usr/lib/
>> COLLECT_GCC_OPTIONS='-m64' '-pthread' '-fPIC' '-march=native' '-D'
>> 'RTE_MACHINE_CPUFLAG_SSE' '-D' 'RTE_MACHINE_CPUFLAG_SSE2' '-D'
>> 'RTE_MACHINE_CPUFLAG_SSE3' '-D' 'RTE_MACHINE_CPUFLAG_SSSE3' '-D'
>> 'RTE_MACHINE_CPUFLAG_SSE4_1' '-D' 'RTE_MACHINE_CPUFLAG_SSE4_2' '-D'
>> 'RTE_MACHINE_CPUFLAG_AES' '-D' 'RTE_MACHINE_CPUFLAG_PCLMULQDQ' '-D'
>> 'RTE_MACHINE_CPUFLAG_AVX' '-D' 'RTE_MACHINE_CPUFLAG_F16C' '-D'
>> 'RTE_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,RTE_CPUFLAG_F16C'
>> '-I' '/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/include'
>> '-include'
>> '/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/include/rte_config.h'
>> '-Wextra' '-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' '-o' 'testacl'
>> '-L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib'
>> '-L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib' '-v'
> We have been looking at this issue over the last couple of days.
> It seems to be an Ubuntu GCC related bug as it works on other distros.
> GCC is passing incorrectly the option '--as-needed' to LD resulting in wrong linking.
>
>>  /usr/lib/gcc/x86_64-linux-gnu/4.8/collect2 --sysroot=/ --build-id
>> --eh-frame-hdr -m elf_x86_64 --hash-style=gnu --as-needed
> The '--as-needed' just at the end of the above line is incorrect and not matching
> a closing '--no-as-needed'.
> You may get away with it by adding 'EXTRA_LDFLAGS=--no-as-needed'. 
> ie. $ make install T=x86_64-native-linuxapp-gcc EXTRA_LDFLAGS=--no-as-needed

I can compile DPDK with above options.
Thank you everyone for helping to solve this issue.

Regards,
Tetsuya

>
> Sergio
>
>> -dynamic-linker /lib64/ld-linux-x86-64.so.2 -z relro -o testacl
>> /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/crt1.o
>> /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/crti.o
>> /usr/lib/gcc/x86_64-linux-gnu/4.8/crtbegin.o
>> -L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib
>> -L/home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib
>> -L/usr/lib/gcc/x86_64-linux-gnu/4.8
>> -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu
>> -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../lib
>> -L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu
>> -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../..
>> -Map=testacl.map --cref main.o -export-dynamic --whole-archive
>> -lrte_distributor -lrte_kni -lrte_pipeline -lrte_table -lrte_port
>> -lrte_timer -lrte_hash -lrte_lpm -lrte_power -lrte_acl -lrte_meter
>> -lrte_sched -lm -lrt --start-group -lrte_kvargs -lrte_mbuf -lrte_ip_frag
>> -lethdev -lrte_malloc -lrte_mempool -lrte_ring -lrte_eal -lrte_cmdline
>> -lrte_cfgfile -lrte_pmd_bond -lrt -lm -lgcc_s -ldl --end-group
>> --no-whole-archive -lgcc --as-needed -lgcc_s --no-as-needed -lpthread
>> -lc -lgcc --as-needed -lgcc_s --no-as-needed
>> /usr/lib/gcc/x86_64-linux-gnu/4.8/crtend.o
>> /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/crtn.o
>> /home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.so:
>> undefined reference to `rte_mempool_lookup'
>> /home/mukawa/tmp/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.so:
>> undefined reference to `rte_mempool_create'
>> collect2: error: ld returned 1 exit status
>>
>> Regards,
>> Tetsuya
>>
>>> Sergio
>>>
>>>
>>>> ----------------------------------------------------------------------
>>>>
>>>> I just enabled the following option, then compile DPDK.
>>>> CONFIG_RTE_BUILD_SHARED_LIB
>>>> Is this collect to compile PMDs as dynamic link libraries?
>>>>
>>>> With the option, all libraries include are compiled as dynamic link library.
>>>> Does "--start-group/--end-group" options work with dynamic link libraries?
>>>>
>>>> Regards,
>>>> Tetsuya
>>>>
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