Golang声明插件导出列表

Question

I'm trying to reduce the size of a shared object produced by go plugin. (Building with 'go build -buildmode=plugin'). As it seems from disassembling the SO, all the public symbols are exported, so the linker cannot remove unused code as it does in executables, resulting with a bloated file size. Is there any way to specify explicitly which symbols I want to export, so the linker could remove the unused code from the binary?