undefined reference to `mempool_del'

[JinBoZi]

when I make libibverbs-1.2.1mlnx1,I I ran into this problem,I hope can get your help,thanks!

CCLD examples/ibv_devices ./src/.libs/libibverbs.so: undefined reference to `mempool_del' ./src/.libs/libibverbs.so: undefined reference to `mempool_insert' ./src/.libs/libibverbs.so: undefined reference to `mempool_create' ./src/.libs/libibverbs.so: undefined reference to `mempool_get'

my OS is ubuntu18.04 server,the docker container also is ubuntu18.04,download from http://hub-mirror.c.163.com The driver is MLNX_OFED_LINUX-4.7-1.0.0.1-ubuntu18.04-x86_64

your build-client.sh just have make and make install,but there is not Makefile under the folder.so,I need to ./autogen.sh and ./configure --prefix=/usr/ --libdir=/usr/lib/ --sysconfdir=/etc/ .I will encounter many other problem,but I have slove.This problem I can't slove,so I have to ask for your help.Thanks your help!

[bobzhuyb]

https://github.com/microsoft/Freeflow/tree/master/libmempool Can you make the code in this folder and make sure the .so is in your library path?

[JinBoZi]

https://github.com/microsoft/Freeflow/tree/master/libmempool Can you make the code in this folder and make sure the .so is in your library path?

Thanks your help! I think i have make libmempool and cp it to my library path

[JinBoZi]

https://github.com/microsoft/Freeflow/tree/master/libmempool Can you make the code in this folder and make sure the .so is in your library path?

This two file may have some help to you. stdout.docx Makefile.txt

[bobzhuyb]

The error happens during CCLD (instead of runtime), so I don't think LD_LIBRARY_PATH matters. You need to make sure the .so is in gcc search path, or you specify it in the Makefile for examples/ibv_devices, like -L for gcc, or specify LIBRARY_PATH (which may pollute your compilation though). Also, it seems to me that your main target ./src/.libs/libibverbs.so has been built already. So, maybe you can ignore the error of building examples..

[JinBoZi]

Thanks for your advice 1.make sure the .so is in gcc search path I use cmd : cpp -v /dev/null -o /dev/null,find the /usr/include is gcc search path.so,I cp /usr/lib/libmempool.so /usr/include/ . But it is don't work. 2.specify LIBRARY_PATH I try to export LIBRARY_PATH=/usr/lib. It is also don't work. 3.How to specify it in the Makefile?

I want to ignore the error of building examples.But how can I make install libibverbs-1.2.1mlnx1?And it seems that librdmacm-1.1.0mlnx need libibverbs.so.

The error happens during CCLD (instead of runtime), so I don't think LD_LIBRARY_PATH matters. You need to make sure the .so is in gcc search path, or you specify it in the Makefile for examples/ibv_devices, like -L for gcc, or specify LIBRARY_PATH (which may pollute your compilation though). Also, it seems to me that your main target ./src/.libs/libibverbs.so has been built already. So, maybe you can ignore the error of building examples..

[JinBoZi]

The error happens during CCLD (instead of runtime), so I don't think LD_LIBRARY_PATH matters. You need to make sure the .so is in gcc search path, or you specify it in the Makefile for examples/ibv_devices, like -L for gcc, or specify LIBRARY_PATH (which may pollute your compilation though). Also, it seems to me that your main target ./src/.libs/libibverbs.so has been built already. So, maybe you can ignore the error of building examples..

can you give me some other suggestion?I want to ignore the error of building examples.so,I make the librdmacm-1.1.0mlnx,but encounter new problem: configure: error: ibv_cmd_open_xrcd() not found. librdmacm requires libibverbs 1.1.8 or later.

[planetA]

@JinBoZi

Try adding this to every configure:

./configure --prefix=/usr LIBS="-lmempool -lrt"