Go 解决 golinkname 错误：must refer to declared 函数/变量
背景
最近在编写 go 项目时
在 执行 go mod tidy 时报错，如下
golang.org/x/sys/unix
# golang.org/x/sys/unix
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/syscall_darwin.1_13.go:29:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.1_13.go:27:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.1_13.go:40:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:28:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:43:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:59:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:75:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:90:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:105:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:121:3: //go:linkname must refer to declared function or variable
../../pkg/mod/golang.org/x/sys@v0.0.0-20200930185726-fdedc70b468f/unix/zsyscall_darwin_amd64.go:121:3: too many errors关键错误：golinkname must refer to declared function or variable