$ go install -buildmode=shared std
$ go get -buildmode=shared -linkshared github.com/hirochachacha/foo
$ ls $GOPATH/pkg/linux_amd64_dynlink/libgithub.com-hirochachacha-foo.so
/go/pkg/linux_amd64_dynlink/libgithub.com-hirochachacha-foo.so
$ cat foo.go
package main

import (
	"github.com/hirochachacha/foo"
)

func main() {
	foo.Bar()
}

$ go build -linkshared foo.go
$ ./foo
Bar
$ ldd foo
    linux-vdso.so.1 (0x00007fff0c3aa000)
    libstd.so => /root/go/pkg/linux_amd64_dynlink/libstd.so (0x00007f6b4c582000)
    libgithub.com-hirochachacha-foo.so => /go/pkg/linux_amd64_dynlink/libgithub.com-hirochachacha-foo.so (0x00007f6b4c37e000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6b4bfcc000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f6b4bdc8000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f6b4bbab000)
    /lib64/ld-linux-x86-64.so.2 (0x0000561ba7f94000)
$ nm -u foo
                 w _ITM_deregisterTMCloneTable
                 w _ITM_registerTMCloneTable
                 w _Jv_RegisterClasses
                 w __gmon_start__
                 U __libc_start_main@@GLIBC_2.2.5
                 U go.link.abihash.libgithub.com-hirochachacha-foo.so
                 U go.link.abihash.libstd.so
                 U main
                 U runtime.addmoduledata
                 U runtime.morestack_noctxt
                 U runtime.printlock
                 U runtime.printnl
                 U runtime.printstring
                 U runtime.printunlock
                 U runtime.throwinit
                 U runtime.tlsg
                 U type.uint8