pkg runtime, const GOARCH string
pkg runtime, const GOOS string
pkg runtime, func Breakpoint()
pkg runtime, func CPUProfile() []uint8
pkg runtime, func Caller(int) (uintptr, string, int, bool)
pkg runtime, func Callers(int, []uintptr) int
pkg runtime, func FuncForPC(uintptr) *Func
pkg runtime, func GC()
pkg runtime, func GOMAXPROCS(int) int
pkg runtime, func GOROOT() string

License(s).

3.4. Notices

You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.