Golang-Build-So.md

Golang build plugin

Normally, if we want to write a function to another file,

we can use package to do that.

But in some case,

The function and file we’re going to use is dynamic,

In this case, we can build these file’s into .so file.

More specific: go build -buildmode=plugin,

and use this file in our main file.

plug, err := plugin.Open("extra.so")
runLib, err := plug.Lookup("targetFunctionName")
runLib.(func())()

CI/CD problem

When we’re building main command into binary file,

and the binary file reading the dynamic .so file,

But if the platform we build the binary file is different

from the platform we’re build the .so file,

we will get the error plugin not implemented.

Solution

Make sure the platform we’re build the binary file is

the same as the platform we’re build the .so file,

such as Docker

golang