x/sys/unix: add renamex_np, renameatx_np #48425
Description
What version of Go are you using (go version)?
$ go version go version go1.17 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="/Users/elagergren/git/flow/bin" GOCACHE="/Users/elagergren/Library/Caches/go-build" GOENV="/Users/elagergren/Library/Application Support/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="darwin" GOINSECURE="" GOMODCACHE="/Users/elagergren/gopath/pkg/mod" GONOPROXY="*.spideroak-ms.com,*.spideroak.com" GONOSUMDB="*.spideroak-ms.com,*.spideroak.com" GOOS="darwin" GOPATH="/Users/elagergren/gopath" GOPRIVATE="*.spideroak-ms.com,*.spideroak.com" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="clang" CXX="clang++" CGO_ENABLED="1" GOMOD="/Users/elagergren/git/flow/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 -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/2b/74fz3jhd4wz4vnbf4z7ywzww0000gp/T/go-build1702522330=/tmp/go-build -gno-record-gcc-switches -fno-common"
What did you do?
Looked in golang.org/x/sys/unix for Renameatx_np.
What did you expect to see?
Renameatx_np.
What did you see instead?
Not Renameatx_np. :)
The use case here is wanting to use RENAME_EXCL.