syscall: Syscall6 not implemented on Solaris

Please answer these questions before submitting your issue. Thanks!

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

go version go1.10 linux/amd64

Does this issue reproduce with the latest release?

yes

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

GOARCH="amd64" GOBIN="" GOCACHE="/home/milann/.cache/go-build" GOEXE="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOOS="linux" GOPATH="/home/milann/golang" GORACE="" GOROOT="/home/milann/go" GOTMPDIR="" GOTOOLDIR="/home/milann/go/pkg/tool/linux_amd64" GCCGO="gccgo" CC="gcc" CXX="g++" CGO_ENABLED="1" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build031994401=/tmp/go-build -gno-record-gcc-switches"

What did you do?

I am trying to call shmget, shmat etc. via syscall. On OpenSolaris there is one code for SHM (52) and then shmget etc. functions are sub calls with codes 0,1,2 etc.

If possible, provide a recipe for reproducing the error. A complete runnable program is good. A link on play.golang.org is best.

package main

import (
	"runtime"
	"syscall"
)

const (
	IPC_PRIVATE = 0
	IPC_CREAT   = 01000
)

func main() {
	if runtime.GOOS == "solaris" {
		id, _, errno := syscall.Syscall6(52, 3, uintptr(int32(IPC_PRIVATE)), uintptr(int32(65536)), uintptr(int32(IPC_CREAT|0777)), 0, 0)
		if int(id) == -1 {
			println(errno)
		}
	} else if runtime.GOOS == "linux" {
                // 29 is syscall.SYS_SHMGET on amd64, missing on solaris
		id, _, errno := syscall.Syscall(29, uintptr(int32(IPC_PRIVATE)), uintptr(int32(65536)), uintptr(int32(IPC_CREAT|0777)))
		if int(id) == -1 {
			println(errno)
		}
	}
}

What did you expect to see?

Program compiles ok with GOOS=solaris.

What did you see instead?

GOOS=solaris go build test.go 
# command-line-arguments
syscall.Syscall6: call to external function
main.main: relocation target syscall.Syscall6 not defined
main.main: undefined: "syscall.Syscall6"

Is this something you are aware of and is there a workaround maybe? For now I also implemented cgo version but I hope just temporary. You can also test with library I am working on: GOOS=solaris go get -tags syscall github.com/gen2brain/shm