build "go-ethereum" with -linkshared failed: /usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1

[SperaxHwy]

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

$ go version
go version go1.14rc1 linux/amd64

Does this issue reproduce with the latest release?

go1.13 had a panic . Duplicate of #35759

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

go env Output

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/ubuntu/.cache/go-build"
GOENV="/home/ubuntu/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/ubuntu/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
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 -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build723368800=/tmp/go-build -gno-record-gcc-switches"/pre>

What did you do?

I tried to build go-ethereum using dynamic linking with command -linkshared.
I downlaoded the go-ethereum, and compiled with command go build -v -linkshared ./cmd/geth

What did you expect to see?

It compiles.

What did you see instead?

ubuntu@VM-0-8-ubuntu:~/go/src/github.com/ethereum/go-ethereum$ go build  -v -linkshared ./cmd/geth
github.com/ethereum/go-ethereum/common/hexutil
github.com/ethereum/go-ethereum/common
github.com/ethereum/go-ethereum/common/math
github.com/ethereum/go-ethereum/rlp
github.com/ethereum/go-ethereum/crypto
github.com/ethereum/go-ethereum/params
github.com/ethereum/go-ethereum/common/mclock
github.com/ethereum/go-ethereum/common/prque
github.com/ethereum/go-ethereum/ethdb
github.com/ethereum/go-ethereum/log
github.com/ethereum/go-ethereum/metrics
github.com/ethereum/go-ethereum/trie
github.com/ethereum/go-ethereum/core/types
github.com/ethereum/go-ethereum
github.com/ethereum/go-ethereum/event
github.com/ethereum/go-ethereum/accounts
github.com/ethereum/go-ethereum/accounts/keystore
github.com/ethereum/go-ethereum/core/state
github.com/ethereum/go-ethereum/p2p/netutil
github.com/ethereum/go-ethereum/rpc
github.com/ethereum/go-ethereum/consensus
github.com/ethereum/go-ethereum/consensus/misc
github.com/ethereum/go-ethereum/consensus/clique
github.com/ethereum/go-ethereum/consensus/ethash
github.com/ethereum/go-ethereum/ethdb/leveldb
github.com/ethereum/go-ethereum/ethdb/memorydb
github.com/ethereum/go-ethereum/core/rawdb
github.com/ethereum/go-ethereum/crypto/blake2b
github.com/ethereum/go-ethereum/crypto/bn256/cloudflare
github.com/ethereum/go-ethereum/crypto/bn256
github.com/ethereum/go-ethereum/core/vm
github.com/ethereum/go-ethereum/core
github.com/ethereum/go-ethereum/accounts/abi
github.com/ethereum/go-ethereum/accounts/scwallet
github.com/ethereum/go-ethereum/core/bloombits
github.com/ethereum/go-ethereum/eth/downloader
github.com/ethereum/go-ethereum/crypto/ecies
github.com/ethereum/go-ethereum/p2p/enr
github.com/ethereum/go-ethereum/p2p/enode
github.com/ethereum/go-ethereum/p2p/discover
github.com/ethereum/go-ethereum/p2p/discv5
github.com/ethereum/go-ethereum/p2p/nat
github.com/ethereum/go-ethereum/p2p
github.com/ethereum/go-ethereum/internal/ethapi
github.com/ethereum/go-ethereum/accounts/usbwallet/trezor
github.com/ethereum/go-ethereum/accounts/usbwallet
github.com/ethereum/go-ethereum/signer/storage
github.com/ethereum/go-ethereum/signer/core
github.com/ethereum/go-ethereum/accounts/external
github.com/ethereum/go-ethereum/accounts/abi/bind
github.com/ethereum/go-ethereum/core/forkid
github.com/ethereum/go-ethereum/eth/fetcher
github.com/ethereum/go-ethereum/eth/filters
github.com/ethereum/go-ethereum/eth/gasprice
github.com/ethereum/go-ethereum/eth/tracers
github.com/ethereum/go-ethereum/miner
github.com/ethereum/go-ethereum/metrics/prometheus
github.com/ethereum/go-ethereum/metrics/exp
github.com/ethereum/go-ethereum/internal/debug
github.com/ethereum/go-ethereum/node
github.com/ethereum/go-ethereum/eth
github.com/ethereum/go-ethereum/accounts/abi/bind/backends
github.com/ethereum/go-ethereum/contracts/checkpointoracle/contract
github.com/ethereum/go-ethereum/contracts/checkpointoracle
github.com/ethereum/go-ethereum/les/checkpointoracle
github.com/ethereum/go-ethereum/les/flowcontrol
github.com/ethereum/go-ethereum/light
github.com/ethereum/go-ethereum/les
github.com/ethereum/go-ethereum/ethstats
github.com/ethereum/go-ethereum/graphql
github.com/ethereum/go-ethereum/metrics/influxdb
github.com/ethereum/go-ethereum/whisper/whisperv6
github.com/ethereum/go-ethereum/cmd/utils
github.com/ethereum/go-ethereum/internal/jsre
github.com/ethereum/go-ethereum/internal/jsre/deps
github.com/ethereum/go-ethereum/internal/web3ext
github.com/ethereum/go-ethereum/console
github.com/ethereum/go-ethereum/ethclient
github.com/ethereum/go-ethereum/cmd/geth
# github.com/ethereum/go-ethereum/cmd/geth
/usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/usr/bin/ld: /tmp/go-link-883345696/000008.o: undefined reference to symbol 'pthread_key_delete@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

[ianlancetaylor]

This error is coming from the C linker, not from Go. It looks like you need to add -pthread to #cgo CFLAGS somewhere.

[SperaxHwy]

@ianlancetaylor Thanks. It compiles well by adding #cgo LDFLAGS: -lpthread at secp256.go