How to modify the free5Gc source code to recompile a network element
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In the process of reading the free5Gc source code and doing some functional verification, we may find that bug exists in the source code implementation of free5Gc.
Take the AMF network element as an example, the sentence "UEContextTransferProcedure lacks a red box" is instantiated, resulting in a null pointer exception triggered when a request is made:
In order to make the functionality available again, we need to modify the source code and recompile it, as follows.
Download the free5Gc source code
Git clone-- recursive-b v3.0.3-j `nproc` https://github.com/free5gc/free5gc.git
Cd free5gc
Git checkout master
Git submodule sync
Git submodule update-init-jobs `nproc`
Git submodule foreach git checkout master
Git submodule foreach git pull-- jobs `nproc`
The source code of each network element will be modified as needed in free5gc/src/ {under the network element name}.
II. Recompile amf
Export CGO_ENABLED=0
Go build-o bin/amf-x src/amf/amf.go
Re-copy the compiled amf to the amf container
Sudo docker cp. / amf amf:/free5gc/amf/amf
4. Restart the amf container
Sudo docker stop amf
Sudo docker start amf
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