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

$ go version
go version go1.12.4 linux/arm64

Does this issue reproduce with the latest release?

yes

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

$ go env
GOARCH="arm64"

GOBIN="/home/bin"

GOCACHE="/root/.cache/go-build"

GOEXE=""

GOFLAGS=""

GOHOSTARCH="arm64"

GOHOSTOS="linux"

GOOS="linux"

GOPATH="/home/"

GOPROXY=""

GORACE=""

GOROOT="/usr/local/go"

GOTMPDIR=""

GOTOOLDIR="/usr/local/go/pkg/tool/linux_arm64"

GCCGO="gccgo"

CC="gcc"

CXX="g++"

CGO_ENABLED="1"

GOMOD=""

CGO_CFLAGS="-g -O2"

CGO_CPPFLAGS=""

CGO_CXXFLAGS="-g -O2"

CGO_FFLAGS="-g -O2"

CGO_LDFLAGS="-g -O2"

PKG_CONFIG="pkg-config"

GOGCCFLAGS="-fPIC -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build141065257=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Hi, i am interested in regenerating files for my native environment (arm64 with linux), located at :

src/vendor/golang.org/x/sys/unix/

I looked at the file mkall.sh that generates files for Architecture/OS combination .

src/vendor/golang.org/x/sys/unix/mkall.sh

line 51 in file mkall.sh, requires a dockerfile present at ${GOOS}/Dockerfile but i can't locate it anywhere in the source .

line 51: $cmd docker build --tag generate:$GOOS $GOOS

please suggest how can i get this dockerfile .

error in running the script is as follows:
unable to prepare context: path "linux" not found
Unable to find image 'generate:linux' locally

What did you expect to see?

I expected to find a dockerfile present in $GOOS or atleast anywhere in the repository .

What did you see instead?

unable to prepare context: path "linux" not found
Unable to find image 'generate:linux' locally