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cmd/go: "executable file not found" error if -out file exists #23147

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ernado opened this issue Dec 15, 2017 · 6 comments
Closed

cmd/go: "executable file not found" error if -out file exists #23147

ernado opened this issue Dec 15, 2017 · 6 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker
Milestone
Go1.10

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@ernado
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ernado commented Dec 15, 2017 •
edited

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

go version devel +67295d6 Thu Dec 14 22:12:09 2017 +0000 linux/amd64

Does this issue reproduce with the latest release?

It's on tip

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

GOARCH="amd64"
GOBIN=""
GOCACHE="/home/ernado/.cache/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/go"
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/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-build292560017=/tmp/go-build -gno-record-gcc-switches"

What did you do?

$ go test -cpuprofile cpu.out . # first
$ go test -cpuprofile cpu.out . # second (cached?)

What did you expect to see?

$ go test -cpuprofile cpu.out .
ok  	github.com/ernado/bug-donotuse	0.203s
$ go test -cpuprofile cpu.out .
ok  	github.com/ernado/bug-donotuse	0.203s

What did you see instead?

$ go test -cpuprofile cpu.out .
ok  	github.com/ernado/bug-donotuse	0.203s
$ go test -cpuprofile cpu.out .
exec: "DO NOT USE - link": executable file not found in $PATH
FAIL	github.com/ernado/bug-donotuse	0.000s

The package file I have used to reproduce that issue:

# bug_test.go
package bug

import "testing"

func TestNothing(t *testing.T) {
	if true == false {
		t.Fatal("-")
	}
}

upd: works even when "-o" is passed and the output file already exists.
@ernado
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ernado commented Dec 15, 2017

I've bisected to 29be20a
/cc @rsc @ianlancetaylor @bradfitz
https://go-review.googlesource.com/c/go/+/81895

@ernado ernado changed the title testing: -cpuprofile causes "executable file not found" error on tip on second run testing: -cpuprofile causes "executable file not found" error if -out file exists Dec 15, 2017
@ernado ernado changed the title testing: -cpuprofile causes "executable file not found" error if -out file exists testing: "executable file not found" error if -out file exists Dec 15, 2017
@ernado
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ernado commented Dec 15, 2017

/cc @dominikh

@ianlancetaylor
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Is this the same as #23150?

@ianlancetaylor ianlancetaylor added this to the Go1.10 milestone Dec 15, 2017
@ianlancetaylor ianlancetaylor added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker labels Dec 15, 2017
@ianlancetaylor ianlancetaylor changed the title testing: "executable file not found" error if -out file exists cmd/go: "executable file not found" error if -out file exists Dec 15, 2017
@ernado
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ernado commented Dec 15, 2017

@ianlancetaylor yes, it is the same issue.

@ianlancetaylor
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Closing as dup.

@ernado
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ernado commented Dec 16, 2017

Technically 23147 can't be dup of 23150 because first was created earlier.
But I see that cl84376 is already linked to 23150 so I got it :)

@ernado ernado mentioned this issue Dec 25, 2017
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