cmd/dist: GOARM auto detection failure

[gopherbot]

by rayneolivetti:

Before filing a bug, please check whether it has been fixed since the
latest release. Search the issue tracker and check that you're running the
latest version of Go:

Run "go version" and compare against
http://golang.org/doc/devel/release.html  If a newer version of Go exists,
install it and retry what you did to reproduce the problem.

Thanks.

What steps will reproduce the problem?
If possible, include a link to a program on play.golang.org.
1. Pull and compile go without specifying GOARM on Arch Linux ARM/Raspberry Pi
2. echo $GOARM
3.

What is the expected output?
6

What do you see instead?
5

Which compiler are you using (5g, 6g, 8g, gccgo)?
5g

Which operating system are you using?
Arch Linux ARM

Which version are you using?  (run 'go version')
go version devel +bae765178262 Mon Feb 11 22:12:56 2013 -0500 linux/arm

Please provide any additional information below.

[minux]

Comment 1:

what's the output of these two commands?
GOARM="" go tool dist env | grep GOARM
go tool dist version

[davecheney]

Comment 2:

I am trying to reproduce this issue now.

Owner changed to @davecheney.

Status changed to Started.

[davecheney]

Comment 3:

I _cannot_ reproduce the issue on rasbian
pi@raspberrypi ~/go/src $ hg id
864c37196df8 tip
pi@raspberrypi ~/go/src $ uname -a
Linux raspberrypi 3.2.27+ #250 PREEMPT Thu Oct 18 19:03:02 BST 2012 armv6l GNU/Linux
pi@raspberrypi ~/go/src $ ../pkg/tool/linux_arm/dist env
GOROOT="/home/pi/go"
GOBIN="/home/pi/go/bin"
GOARCH="arm"
GOOS="linux"
GOHOSTARCH="arm"
GOHOSTOS="linux"
GOTOOLDIR="/home/pi/go/pkg/tool/linux_arm"
GOCHAR="5"
GOARM="6"
Moving on to archlinuxarm for comparison.

[gopherbot]

Comment 5 by rayneolivetti:

As I mentioned in the mailing list, the problem actually disappeared when I switched
from an old version to a recent version using GOARM=6 explicity.
I just tried building everything from scratch without GOARM=6 and it's working fine, and
I can't reproduce it either.
I am terribly sorry about filing this invalid issue without any real tests.

[davecheney]

Comment 6:

Not a problem, there were cases in the past where the auto detection wasn't as reliable.
I've just done a test on arch (whatever version they ship form the RPi website +
updates) and everything looks to be in order.
[root@alarmpi src]# uname -a
Linux alarmpi 3.6.11-6-ARCH+ #1 PREEMPT Mon Feb 11 02:33:03 UTC 2013 armv6l GNU/Linux
[root@alarmpi src]# ../pkg/tool/linux_arm/dist env
GOROOT="/root/go"
GOBIN="/root/go/bin"
GOARCH="arm"
GOOS="linux"
GOHOSTARCH="arm"
GOHOSTOS="linux"
GOTOOLDIR="/root/go/pkg/tool/linux_arm"
GOCHAR="5"
GOARM="6"
[root@alarmpi src]# hg id
86556fe6cad5 tip
I'll mark this issue as retracted. Please let me know if it reoccurs.

Labels changed: added arch-arm.

Status changed to Retracted.