Failed building obfuscated binary that uses github.com/gogo/protobuf/proto

[arhim-bruje122]

What version of Garble and Go are you using?

$ garble version
mvdan.cc/garble v0.9.3
$ go version
go version go1.20.3 darwin/arm64

What environment are you running Garble on?

go env Output

$ go env
GO111MODULE=""
GOARCH="arm64"
GOBIN=""
GOCACHE="/Users/x/Library/Caches/go-build"
GOENV="/Users/x/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="arm64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/x/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/x/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/opt/homebrew/Cellar/go/1.20.3/libexec"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/opt/homebrew/Cellar/go/1.20.3/libexec/pkg/tool/darwin_arm64"
GOVCS=""
GOVERSION="go1.20.3"
GCCGO="gccgo"
AR="ar"
CC="cc"
CXX="c++"
CGO_ENABLED="1"
GOMOD="/Users/x/go.mod"
GOWORK=""
CGO_CFLAGS="-O2 -g"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-O2 -g"
CGO_FFLAGS="-O2 -g"
CGO_LDFLAGS="-O2 -g"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/j2/gjnvkvrd72n08y5jtl_x5wjm0000gn/T/go-build3956090031=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

built application using using garble.

code sample to reproduce the error

package main
import (
    "fmt"
    "github.com/gogo/protobuf/proto"
)

func main() {
    // Define a message
    message := &MyMessage{
        Foo: proto.String("Hello"),
        Bar: proto.Int32(42),
    }

    // Serialize the message to bytes
    data, err := proto.Marshal(message)
    if err != nil {
        panic(err)
    }

    // Deserialize the message from bytes
    newMessage := &MyMessage{}
    err = proto.Unmarshal(data, newMessage)
    if err != nil {
        panic(err)
    }

    // Print the message contents
    fmt.Println(*newMessage.Foo)
    fmt.Println(*newMessage.Bar)
}

// Define a protobuf message
type MyMessage struct {
    proto.Message // Embed the proto.Message interface
    Foo *string `protobuf:"bytes,1,opt,name=foo" json:"foo,omitempty"`
    Bar *int32  `protobuf:"varint,2,opt,name=bar" json:"bar,omitempty"`
}

Command that was used for building the code:

GOGARBLE=github.com,gopkg.in CGO_ENABLED=0 garble -tiny -literals -seed=000000000000000000 build

What did you expect to see?

Successfully built binary.

What did you see instead?

# github.com/gogo/protobuf/proto
:1: cannot use new(struct{cTbFKPsI sync.Mutex; hHZQMchMkm9 map[int32]Extension}) (value of type *struct{cTbFKPsI sync.Mutex; hHZQMchMkm9 map[int32]Extension}) as *struct{mu sync.Mutex; extensionMap map[int32]Extension} value in assignment
:1: cannot use new(struct{cTbFKPsI sync.Mutex; hHZQMchMkm9 map[int32]Extension}) (value of type *struct{cTbFKPsI sync.Mutex; hHZQMchMkm9 map[int32]Extension}) as *struct{mu sync.Mutex; extensionMap map[int32]Extension} value in struct literal
exit status 2
exit status 1

[mvdan]

See #685.

[arhim-bruje122]

Will the problem be fixed?

[mvdan]

The issue is open. There is a workaround via GOGARBLE in the meantime.