Gollvm failed to build hugo

[Yuan Ting]

Hi, I try to build hugo with fresh gollvm but the linker complains that:

# github.com/gohugoio/hugo
/usr/bin/ld.gold: error: $WORK/b029/_pkg_.a(gccgo_c.o): failed to match split-stack sequence at section 1 offset 0
/usr/bin/ld.gold: error: $WORK/b029/_pkg_.a(gccgo_c.o): failed to match split-stack sequence at section 1 offset a6

To reproduce:

git clone https://github.com/gohugoio/hugo.git
cd hugo && go build

Platform: x86_64 ubuntu:20.04

Gollvm build flags:

cmake ../llvm -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_ASSERTIONS=On -DLLVM_ENABLE_RTTI=On -DLLVM_USE_LINKER=gold -G Ninja

[Ian Lance Taylor]

[ + thanm, cherryyz ]

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[Than McIntosh]

Hello,

>># github.com/gohugoio/hugo

>>/usr/bin/ld.gold: error: $WORK/b029/_pkg_.a(gccgo_c.o): failed to match split-stack sequence at section 1 offset 0

This issue is https://github.com/golang/go/issues/38728, which should be fixed at this point at tip. 

Thanks, Than

[Yuan Ting]

Thanks for direction,

I think the root cause of this issue is exactly the same in #38728 but I afraid the patch in #38728 only fix the building of gollvm (i.e. add -fcd-branch=none to the build flags). In the above case, gollvm uses /usr/bin/cc to compile gccgo_c.o during the building of hugo without -fcd-branch=none and finally fails in linking time. So I guess we need also add this flag in somewhere gollvm calling /usr/bin/cc. This is only needed for newer linux distributions, I can't reproduce it in ubuntu 18.04.

Thanks, Ting

On Monday, August 10, 2020 at 9:30:45 PM UTC+8, Than McIntosh wrote:

Hello,

>># github.com/gohugoio/hugo

>>/usr/bin/ld.gold: error: $WORK/b029/_pkg_.a(gccgo_c.o): failed to match split-stack sequence at section 1 offset 0

This issue is https://github.com/golang/go/issues/38728, which should be fixed at this point at tip. 

Thanks, Than

On Mon, Jul 20, 2020 at 2:33 PM Ian Lance Taylor <ia...@golang.org> wrote:

[ + thanm, cherryyz ]

On Mon, Jul 20, 2020 at 4:24 AM Yuan Ting <yuan...@ict.ac.cn> wrote:
>
> Hi, I try to build hugo with fresh gollvm but the linker complains that:
>
> # github.com/gohugoio/hugo
> /usr/bin/ld.gold: error: $WORK/b029/_pkg_.a(gccgo_c.o): failed to match split-stack sequence at section 1 offset 0
> /usr/bin/ld.gold: error: $WORK/b029/_pkg_.a(gccgo_c.o): failed to match split-stack sequence at section 1 offset a6
>
> To reproduce:
>
> git clone https://github.com/gohugoio/hugo.git
> cd hugo && go build
>
> Platform: x86_64 ubuntu:20.04
> Gollvm build flags:
> cmake ../llvm -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_ASSERTIONS=On -DLLVM_ENABLE_RTTI=On -DLLVM_USE_LINKER=gold -G Ninja
>
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> 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 golan...@googlegroups.com.