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gollvm: building dkolbly/wl package brought symbol lookup error: /lib/libgo.so.12git: undefined symbol: main.main #41881

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advancedwebdeveloper opened this issue Oct 9, 2020 · 3 comments
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@advancedwebdeveloper
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@advancedwebdeveloper advancedwebdeveloper commented Oct 9, 2020

Hi.

$ go version
go version go1.15.2 gollvm LLVM 12.0.0git linux/amd64

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/oceanfish81/.cache/go-build"
GOENV="/home/oceanfish81/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/oceanfish81/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/oceanfish81/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/oceanfish81/gollvm_dist"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/oceanfish81/gollvm_dist/tools"
GCCGO="/home/oceanfish81/gollvm_dist/bin/llvm-goc"
AR="ar"
CC="/usr/bin/clang"
CXX="/usr/bin/clang++"
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 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build938164654=/tmp/go-build -gno-record-gcc-switches -funwind-tables"

I got such errors:

~/golang_projects/wl/ui/examples/img$ go run image.go
/tmp/go-build853824791/b001/exe/image: symbol lookup error: /lib/libgo.so.12git: undefined symbol: main.main
exit status 127

$ file /lib/libgo.so.12git
/lib/libgo.so.12git: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped

~/golang_projects/wl/ui/examples/img$ go run img.go

command-line-arguments

./img.go:39:14: error: reference to undefined name 'ImageFromFile'

This one seems to be related to Wayland itself - so I will try resolve that (manually):

$ ~/go/bin/img ~/go/src/github.com/dkolbly/wl/ui/examples/img/bsd_daemon.jpg
Connect to Wayland server failed dial unix /run/user/1000/wayland-0: connect: no such file or directory

CC @sternix @dkolbly
CC @thanm @cherrymui

@ianlancetaylor
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@ianlancetaylor ianlancetaylor commented Oct 9, 2020

Same as #41880. Which one do you want to keep?

@ianlancetaylor ianlancetaylor added this to the gollvm milestone Oct 9, 2020
@advancedwebdeveloper
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@advancedwebdeveloper advancedwebdeveloper commented Oct 10, 2020

Same as #41880. Which one do you want to keep?

Probably the second one.
Thanks, @ianlancetaylor

@ianlancetaylor
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@ianlancetaylor ianlancetaylor commented Oct 13, 2020

I would not expect go run image.go to work, as the main function is in img.go.

I don't think this is a bug at all.

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