cmd/compile, cmd/link: c-shared not supported on linux/loong64 #53301
Description
What version of Go are you using (go version)?
$ go version go version go1.18 linux/loong64
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="on" GOARCH="loong64" GOBIN="" GOCACHE="/home/uos/.cache/go-build" GOENV="/home/uos/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="loong64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/home/uos/go/pkg/mod" GONOPROXY="*.uniontech.com" GONOSUMDB="*.uniontech.com" GOOS="linux" GOPATH="/home/uos/go" GOPRIVATE="" GOPROXY="https://goproxy.cn,direct" GOROOT="/usr/share/ubxgo/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/share/ubxgo/go/pkg/tool/linux_loong64" GOVCS="" GOVERSION="go1.18" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/dev/null" 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 -mabi=lp64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1139878000=/tmp/go-build -gno-record-gcc-switches"
What did you do?
go build -x -buildmode=c-shared -o hello.so hello.go
-buildmode=c-shared not supported on linux/loong64
I tried modified source code to support c-shared
/usr/share/ubxgo/go/pkg/tool/linux_loong64/link -o $WORK/b001/exe/a.out -importcfg $WORK/b001/importcfg.link -installsuffix shared -buildmode=c-shared -buildid=VjSGCzgmjjJmng4hvW1p/WO5bAXmxALTE53mSBcMM/lLTTU0AieOjUvcGiNFbI/VjSGCzgmjjJmng4hvW1p -extld=gcc /home/uos/.cache/go-build/8a/8a684f2f6e11d470d52b1497952c1f44669b428ec4b5cbe654f378ab7a078f2b-d
#command-line-arguments
/usr/share/ubxgo/go/pkg/tool/linux_loong64/link: running gcc failed: exit status 1
collect2: fatal error: ld terminated with signal 11 [segfault]
compilation terminated.
package main
import "C"
//export hello
func hello(value string) *C.char {
return C.CString("hello"+value)
}
func main() {
}
What did you expect to see?
What did you see instead?
Why doesn't loongarch supported c-shared mode?
Modified into English (origin Chinese)