MATLAB crashes after setting LD_PRELOAD parameter

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Stefan 2023-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/2017121-matlab-crashes-after-setting-ld_preload-parameter

评论： Ganesh 2023-9-14

I am trying to integrate external cpp code into simulink using S-Functions. I have got the external cpp code pre-compiled in a shared library form. When I compile the S-function code using mex command, it compiles successfully but when i try to load the S-function, it gives me the error below.

/home/divyanshu/MATLAB/R2023a/bin/glnxa64/../../sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by
/home/divyanshu/build_workspace/develop/simulink_tests/libs/libutils.so)

I have seen similar issues on the MATLAB forum and they suggest setting the LD_PRELOAD param but after setting the param and trying to load the mex executable, the entire MATLAB crashes and there is no warning or error message. I am assuming this issue is because of broken dependecies because of LD_PRELOAD. I saw this link facing the same issue but i am not sure it helps me at all. What can I do about this as I am all out of options?

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Ganesh 2023-9-14

Hi @Stefan,

Requesting you to share the CPP Code that you are using, and also a template of the Simulink model that you are using in order to reproduce the issue.

Thanks and Regards,

Ganesh S

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