What version of Go are you using (go version)?

1.7.3

What operating system and processor architecture are you using (go env)?

amd64 on macOS 10.11.6 (El Capitan) and 10.12.1 (Sierra)
(System Integrity Protection is turned off to use DTrace)

What did you do?

package main

func main() {
}

$ sudo dtruss ./mycode

What did you expect to see?

Appears system call information

What did you see instead?

The panic message thrown at the following place appears.

https://github.com/golang/go/blob/master/src/runtime/os_darwin.go#L108

@moriyoshi researched this issue I met and he found the following facts:

The following codes works.

package main
import (
    "C"
)
func main() {
}

package main
import (
    "time"
)
func main() {
    // attach with $ sudo dtruss -p PID 
    // during this term
    time.Sleep(10 * time.Second)
}

bsdthread_register() function may be designed to be called only once (call twice returns error), but /usr/lib/dtrace/libdtrace_dyld.dylib calls this function before loading and then Go runtime calls at initialization process too (if the go program was not built in cgo mode).