Compilation error with ARM processor (reoccurance)

[Martin555]

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

$ go version
go version go1.14.2 linux/arm

# Also tried with 1.11, 1.12 and 1.13

Does this issue reproduce with the latest release?

Not sure, 1.14.3 is not available for arm yet.

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

go env Output

$ go env
GO111MODULE=""
GOARCH="arm"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="arm"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/root/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/go-1.14"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go-1.14/pkg/tool/linux_arm"
GCCGO="gccgo"
GOARM="6"
AR="ar"
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 -marm -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build692618928=/tmp/go-build -gno-record-gcc-switches"

What did you do?

go build on https://github.com/dwoja22/ffmpeg-webrtc
-> Works flawlessly on Ubuntu amd64

What did you expect to see?

Compilation

What did you see instead?

[22:13 martin@orangepizero ffmpeg-webrtc]$ go build
# golang.org/x/sys/unix
../pkg/mod/golang.org/x/sys@v0.0.0-20191206220618-eeba5f6aabab/unix/zptrace_armnn_linux.go:45:57: cannot use uint64(unsafe.Sizeof(*regsout)) (type uint64) as type uint32 in field value
../pkg/mod/golang.org/x/sys@v0.0.0-20191206220618-eeba5f6aabab/unix/zptrace_armnn_linux.go:51:54: cannot use uint64(unsafe.Sizeof(*regs)) (type uint64) as type uint32 in field value

The same problem has been reported in issue #36032, which has been closed by gopherbot.

[randall77]

Those line numbers look like they don't correspond to tip. Could you retry with the latest x/sys?

[ianlancetaylor]

Yes, this was fixed by https://golang.org/cl/210322. You need to update your sources.

[Martin555]

@ianlancetaylor which sources are you referring to and how can I update them? The mentioned fix was merged in December 2019 and the installed go1.14.2 was released on 2020/04/08.

Thank you.

[ianlancetaylor]

Sorry, I was referring to the golang.org/x/sys sources. You need a newer version of the golang.org/x/sys/unix package.

[Martin555]

@ianlancetaylor thank you very much! Now it compiles flawlessly.