On Thu, Jul 9, 2020 at 9:40 AM Atilla Filiz <ati...@fi-tech.be> wrote: > > As part of porting to powerpc440 effort, we are using gccgo to port Docker. > > I am confused about the -X flag. What is the gccgo equivalent of using -X > importpath.name=value to set string variables in some go files. > > The following command > > GO111MODULE=off GOARCH=ppc > GOCACHE="/workspace/output/cr/host/usr/share/go-cache" GOROOT="""" > CC="/workspace/output/cr/host/bin/powerpc-buildroot-linux-gnu-gcc" > CXX="/workspace/output/cr/host/bin/powerpc-buildroot-linux-gnu-g++" > GOTOOLDIR="""/pkg/tool/linux_ppc" > GCCGO="/workspace/output/cr/host/bin/powerpc-buildroot-linux-gnu-gccgo" > PATH="/workspace/output/cr/host/bin:/workspace/output/cr/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" > GOBIN= CGO_ENABLED=1 > GOPATH="/workspace/output/cr/build/docker-cli-19.03.5/gopath" CGO_ENABLED=0 > ""/workspace/buildroot/../toolchains/powerpc-buildroot-linux-gnu_sdk-buildroot"/bin/go" > build -v -compiler gccgo -gccgoflags='-static > -Lvendor/golang.org/x/sys/unix -lgccgo_c -X > github.com/docker/cli/cli.Version=19.03.5' -tags "autogen" -p 17 -o > /workspace/output/cr/build/docker-cli-19.03.5/bin/docker ./cmd/docker > > fails with > > powerpc-buildroot-linux-gnu-gccgo: error: > github.com/docker/cli/cli.Version=19.03.5: No such file or directory > powerpc-buildroot-linux-gnu-gccgo: error: unrecognized command line option > '-X' > > as if we tried to pass the options to gcc or ld. > > The same command is supposed to work with gc, as the original flag was there > in buildroot, but failed to build when we switched to gccgo.
Unfortunately there really isn't an equivalent to -X when using gccgo. The design of gccgo is to use the system linker, and system linkers don't support an option like this. I think it would be possible to do some sort of code generation in the go tool to implement this for gccgo, but nobody has done that work. Sorry. Ian -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAOyqgcUA-50NLFTunvJw-Y9MHd9-JZxqqnH0mVPx%2BsagzSze0g%40mail.gmail.com.
