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cmd/go: build/program failed to run on invalid symlink in ignored directory #53387

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shuLhan opened this issue Jun 15, 2022 · 4 comments
Closed

cmd/go: build/program failed to run on invalid symlink in ignored directory #53387

shuLhan opened this issue Jun 15, 2022 · 4 comments
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FrozenDueToAge GoCommand cmd/go NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker
Milestone
Go1.19

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@shuLhan
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shuLhan commented Jun 15, 2022 •
edited

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

$ go version
go version devel go1.19-2a78e8afc0 Wed Jun 15 00:06:24 2022 +0000 linux/amd64

Does this issue reproduce with the latest release?

No.

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

go env Output
$ go env
GO111MODULE="on"
GOARCH="amd64"
GOBIN="/home/ms/go/bin"
GOCACHE="/home/ms/.cache/go-build"
GOENV="/home/ms/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/ms/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/ms/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/ms/opt/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/ms/opt/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="devel go1.19-bc01cb278a Sun Jun 12 11:30:23 2022 +0700"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="0"
GOMOD="/home/ms/go/src/github.com/shuLhan/sandbox-go/go119-build/go.mod"
GOWORK=""
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 -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1693274605=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Create hidden directory with invalid symlinks inside it,

10:22:10 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ tree -a
.
├── go.mod
├── .hidden
│   └── notexist -> ../notexist
└── main.go

1 directory, 3 files

 10:22:12 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ cat main.go
package main

func main() {
        println("hello 1.19")
}

Run go build or program that build with this Go version.

What did you expect to see?

Source code compiled and build successfully.

What did you see instead?

10:24:55 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ go build .
stat /home/ms/go/src/github.com/shuLhan/sandbox-go/go119-build/.hidden/notexist: no such file or directory

Use case when the program build using this Go version (in this case fieldalignment from x/tools) with directory start with _ and invalid symlink,

10:28:28 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ fieldalignment .
-: stat /home/ms/go/src/github.com/shuLhan/sandbox-go/go119-build/.hidden/notexist: no such file or directory
fieldalignment: error during loading

Notes

A quick bisect show that commit 899f0a2 (#53290) is the cause.

 11:06:11 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ go version
go version devel go1.19-899f0a29c7 Wed Jun 8 16:53:29 2022 +0000 linux/amd64

 11:06:11 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ go run .
stat /home/ms/go/src/github.com/shuLhan/sandbox-go/go119-build/.hidden/notexist: no such file or directory

 11:06:15 ~/go/src/github.com/shuLhan/sandbox-go/go119-build
(ins) 1 $ GODEBUG=goindex=0 go run .
hello 1.19
@seankhliao seankhliao added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. GoCommand cmd/go labels Jun 15, 2022
@seankhliao
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cc @matloob

@shuLhan shuLhan mentioned this issue Jun 15, 2022
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@bcmills bcmills added this to the Go1.19 milestone Jun 15, 2022
@seankhliao seankhliao mentioned this issue Jun 17, 2022
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@bradfitz
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Lest anybody else file dups like I did (#53421) after searching open issues for "emacs" and "dangling", the thing that bit me was Emacs lock files, which apparently I had a ton of.

@bcmills
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bcmills commented Jun 17, 2022

This should be fixed by CL 412394 / CL 412779.

@johejo johejo mentioned this issue Jun 20, 2022
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@bcmills
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bcmills commented Jun 22, 2022

Should be fixed at head — please let us know if that is not the case.

@bcmills bcmills closed this as completed Jun 22, 2022
@rsc rsc unassigned bcmills and matloob Jun 22, 2022
@seankhliao seankhliao mentioned this issue Jul 1, 2022
Closed
@golang golang locked and limited conversation to collaborators Jun 22, 2023
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Labels
FrozenDueToAge GoCommand cmd/go NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker
Projects
Release Status & Release Blockers
Status: Done
Milestone
Go1.19
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@bradfitz @shuLhan @bcmills @gopherbot @seankhliao @matloob