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gomobile: go build runtime/cgo: invalid flag in go:cgo_ldflag: -fembed-bitcode #42647

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neilalexander opened this issue Nov 16, 2020 · 4 comments
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gomobile: go build runtime/cgo: invalid flag in go:cgo_ldflag: -fembed-bitcode #42647

neilalexander opened this issue Nov 16, 2020 · 4 comments
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@neilalexander
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What version of Go are you using (go version)?

$ go version
go version go1.15.5 darwin/amd64

Does this issue reproduce with the latest release?

Yes.

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

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/neilalexander/Library/Caches/go-build"
GOENV="/Users/neilalexander/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/neilalexander/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/neilalexander/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/neilalexander/go/src/github.com/yggdrasil-network/yggdrasil-go/go.mod"
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=/var/folders/cv/wv7k9w2s4qdfjfd60nd7_5t40000gn/T/go-build915392521=/tmp/go-build -gno-record-gcc-switches -fno-common"

This problem started with macOS Big Sur. It worked on Catalina.

What did you do?

git clone https://github.com/yggdrasil-network/yggdrasil-go
cd yggdrasil-go
./build -i

... which is effectively doing the usual gomobile bind:

gomobile bind -target ios -tags mobile ...

What did you expect to see?

A completed build with an output .framework.

What did you see instead?

gomobile: darwin-arm64: go build -tags mobile ios -ldflags -X github.com/yggdrasil-network/yggdrasil-go/src/version.buildName=yggdrasil-develop -X github.com/yggdrasil-network/yggdrasil-go/src/version.buildVersion=0.3.15-0082 -s -w  -buildmode=c-archive -o /var/folders/cv/wv7k9w2s4qdfjfd60nd7_5t40000gn/T/gomobile-work-621527419/yggdrasil-arm64.a ./gobind failed: exit status 1
go: downloading golang.org/x/mobile v0.0.0-20200801112145-973feb4309de
go: downloading github.com/yggdrasil-network/yggdrasil-extras v0.0.0-20201115133139-13e9439a0b5a
go: downloading github.com/mitchellh/mapstructure v1.1.2
go: downloading github.com/Arceliar/phony v0.0.0-20191006174943-d0c68492aca0
go: downloading github.com/hjson/hjson-go v3.0.2-0.20200316202735-d5d0e8b0617d+incompatible
go: downloading github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8
go: found github.com/yggdrasil-network/yggdrasil-go/src/config in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/address in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/crypto in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/defaults in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/util in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/admin in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: found github.com/yggdrasil-network/yggdrasil-go/src/multicast in github.com/yggdrasil-network/yggdrasil-go v0.0.0-00010101000000-000000000000
go: downloading golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d
go: downloading golang.org/x/net v0.0.0-20200301022130-244492dfa37a
go: downloading golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527
go build runtime/cgo: invalid flag in go:cgo_ldflag: -fembed-bitcode
@myroid
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myroid commented Nov 17, 2020

I have the same problem. And when I run build android, I get an error:

……
TERM='dumb' /Users/mac/Library/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/armv7a-linux-androideabi16-clang -I . -fPIC -marm -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=$WORK/b039=/tmp/go-build -gno-record-gcc-switches -o $WORK/b039/_cgo_.o $WORK/b039/_cgo_main.o $WORK/b039/_x001.o $WORK/b039/_x002.o $WORK/b039/_x003.o $WORK/b039/_x004.o $WORK/b039/_x005.o $WORK/b039/_x006.o $WORK/b039/_x007.o $WORK/b039/_x008.o $WORK/b039/_x009.o $WORK/b039/_x010.o -g -O2 -llog -pie
# runtime/cgo
ld: error: duplicate symbol: x_cgo_inittls
>>> defined at gcc_android.c:90
>>>            $WORK/b039/_x003.o:(x_cgo_inittls)
>>> defined at gcc_linux_arm.c:13
>>>            $WORK/b039/_x006.o:(.bss+0x4)
clang: error: linker command failed with exit code 1 (use -v to see invocation)
rm -r -f "$WORK"
……

@ianlancetaylor
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@myroid The x_cgo_inittls problem looks like a completely different problem which should be discussed in a different issue. Thanks.

@ianlancetaylor
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Looks like the golang.org/x/mobile build sets CGO_LDFLAGS, so this is a dup of #42565. It should be fixe din 1.15.6. Sorry for the trouble.

@nicklasaven nicklasaven mentioned this issue Nov 17, 2020
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@ibigbug
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ibigbug commented Dec 2, 2020

Looks like the golang.org/x/mobile build sets CGO_LDFLAGS, so this is a dup of #42565. It should be fixe din 1.15.6. Sorry for the trouble.

Sorry to comment on closed ticket: when will the new version get released and any workarounds for the current version?

@AlexRouSg AlexRouSg mentioned this issue Dec 8, 2020
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@VincentChen1212 VincentChen1212 mentioned this issue Dec 28, 2020
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@golang golang locked and limited conversation to collaborators Dec 26, 2021
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@neilalexander @ibigbug @ianlancetaylor @myroid @gopherbot and others