could not be installed on PCDuino

[ardypro]

I attempted to install go serial on PCDuino, a Raspberry Pi like device, it threw out an error as :

_/usr/lib/go/src/pkg/github.com/tarm/serial/seriallinux.go:150: undefined: syscall.TCIOFLUSH

[evantill]

could you show us the output of go env on your PCDuino ?

[ardypro]

GOROOT="/usr/lib/go" GOBIN="" GOARCH="arm" GOCHAR="5" GOOS="linux" GOEXE="" GOHOSTARCH="arm" GOHOSTOS="linux" GOTOOLDIR="/usr/lib/go/pkg/tool/linux_arm" GOGCCFLAGS="-g -O2 -fPIC" CGO_ENABLED="0"

[tarm]

That constant should be present for arm after this commit: https://github.com/golang/go/commit/bd9cd6e30e629f8751c978a75befc087b4cb5617

I'm not sure why that is not working. I do not have an arm board to test with, but cross compiling using "GOARCH=arm" does work for me.

tarm@linux ~/go/src/github.com/tarm/serial (master)$ GOARCH=arm go install . tarm@linux ~/go/src/github.com/tarm/serial (master)$ GOARCH=arm go env GOARCH="arm" GOBIN="" GOEXE="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOOS="linux" GOPATH="/home/tarm/go" GORACE="" GOROOT="/home/tarm/gosrc" GOTOOLDIR="/home/tarm/gosrc/pkg/tool/linux_amd64" GO15VENDOREXPERIMENT="1" CC="gcc" GOGCCFLAGS="-fPIC -marm -fmessage-length=0" CXX="g++" CGO_ENABLED="0"

[tarm]

@ardypro Is it easy for you to reinstall packages in your GOROOT?

Specifically, I tried doing "rm -rf $GOROOT/pkg/linux_arm/*" and then "GOARCH=arm go install -x github.com/tarm/serial", and I see (with other things) these lines: mkdir -p $WORK/syscall/_obj/ cd /home/tarm/gosrc/src/syscall /home/tarm/gosrc/pkg/tool/linuxamd64/compile -o $WORK/syscall.a -trimpath $WORK -p syscall -buildid 427ae664642404aae49a95ef68735301b88e0ca3 -D /home/tarm/gosrc/src/syscall -I $WORK -pack -asmhdr $WORK/syscall/_obj/go_asm.h ./env_unix.go ./exec_linux.go ./exec_unix.go ./flock.go ./flock_linux_32bit.go ./lsf_linux.go ./msan0.go ./netlink_linux.go ./sockcmsg_linux.go ./sockcmsg_unix.go ./str.go ./syscall.go ./syscall_linux.go ./syscall_linux_arm.go ./syscall_unix.go ./zerrors_linux_arm.go ./zsyscall_linux_arm.go ./zsysnum_linux_arm.go ./ztypes_linux_arm.go

So that is grabbing the correct zerrors_linux_arm.go that I expect it too. I am wondering why your compile is not finding it. It should be there in every go version after go1.2.

[evantill]

@ardypro can you check your go version ?

[stanier]

Just to provide some resolve for other users trying to get this library to work on ARM devices-- yes it works on the RPi.

Tested with Go 1.7 on an RPi 2 cross-compiled with GOARM 5