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cmd/compile: Go 1.22.x failed to be bootstrapped from 386 to ppc64le #66955

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cheese opened this issue Apr 22, 2024 · 5 comments
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cmd/compile: Go 1.22.x failed to be bootstrapped from 386 to ppc64le #66955

cheese opened this issue Apr 22, 2024 · 5 comments
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@pmur
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arch-386 Issues solely affecting the 32-bit x86 architecture arch-ppc64x NeedsFix The path to resolution is known, but the work has not been done.
Milestone
Go1.23

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@cheese
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cheese commented Apr 22, 2024

Go version

go version go1.21.9 linux/386

Output of go env in your module/workspace:

GO111MODULE=''
GOARCH='ppc64le'
GOBIN=''
GOCACHE='/tmp/.cache/go-build'
GOENV='/tmp/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='386'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/tmp/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/tmp/go'
GOPRIVATE=''
GOPROXY=''
GOROOT='/cross/lib/go'
GOSUMDB=''
GOTMPDIR=''
GOTOOLCHAIN=''
GOTOOLDIR='/cross/lib/go/pkg/tool/linux_386'
GOVCS=''
GOVERSION='go1.21.9'
GCCGO='gccgo'
GOPPC64='power8'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='0'
GOMOD='/dev/null'
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 -fmessage-length=0 -ffile-prefix-map=/tmp/go-build4273291414=/tmp/go-build -gno-record-gcc-switches'

What did you do?

Cross-build go-1.22 for ppc64le from 386.

  1. Prepare a go environment of 386 isa
  2. Checkout a source directory of go1.22.2
  3. Run
cd src
bash make.bash

with environments

GOARCH: ppc64le
GOOS: linux
GOHOSTARCH: 386
CGO_ENABLED: 0

The was run in a test of freedesktop-sdk-binary-seed, full log is available https://gitlab.com/freedesktop-sdk/freedesktop-sdk-binary-seed/-/jobs/6679102887

I also tested some other combinations:

  • go-1.21 386 bootstraps go-1.21 ppc64le: good
  • go-1.21 386 bootstraps go-1.22 amd64, arm64, 386: good
  • go-1.22 386 bootstraps go-1.22 ppc64le: bad

What did you see happen?

The build failed with errror log:

+ sh -c -e 'cd src
bash make.bash
'
Building Go cmd/dist using /cross/lib/go. (go1.21.9 linux/386)
Building Go toolchain1 using /cross/lib/go.
Building Go bootstrap cmd/go (go_bootstrap) using Go toolchain1.
Building Go toolchain2 using go_bootstrap and Go toolchain1.
Building Go toolchain3 using go_bootstrap and Go toolchain2.
Building commands for host, linux/386.
Building packages and commands for target, linux/ppc64le.
# time
00072 (/buildstream-build/src/time/time.go:1242)        MOVD    $-51844517355891, R5
00072 (/buildstream-build/src/time/time.go:1242)        MOVD    $-51844517355891, R5
00072 (/buildstream-build/src/time/time.go:1242)        MOVD    $-51844517355891, R5
00152 (<autogenerated>:1)       MOVD    $-51844517355891, R5
00152 (<autogenerated>:1)       MOVD    $-51844517355891, R5
00152 (<autogenerated>:1)       MOVD    $-51844517355891, R5
<autogenerated>:1: illegal combination MOVD 64CON NONE NONE NONE NONE REG
# crypto/des
00080 (/buildstream-build/src/crypto/des/block.go:187)  MOVD    $16557098929935, R5
00080 (/buildstream-build/src/crypto/des/block.go:187)  MOVD    $16557098929935, R5
00080 (/buildstream-build/src/crypto/des/block.go:187)  MOVD    $16557098929935, R5
00088 (/buildstream-build/src/crypto/des/block.go:131)  MOVD    $16557098929935, R5
00088 (/buildstream-build/src/crypto/des/block.go:131)  MOVD    $16557098929935, R5
00088 (/buildstream-build/src/crypto/des/block.go:131)  MOVD    $16557098929935, R5
<autogenerated>:1: illegal combination MOVD 64CON NONE NONE NONE NONE REG
go tool dist: FAILED: /buildstream-build/pkg/tool/linux_386/go_bootstrap install std: exit status 1
Command 'cd src
bash make.bash' failed with exitcode 2

What did you expect to see?

The build succeeds since Go 1.22 was announced boostrappable from Go 1.20+.
@mauri870 mauri870 added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. arch-ppc64x labels Apr 22, 2024
@mauri870
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cc @golang/compiler @golang/ppc64

@mauri870 mauri870 added the arch-386 Issues solely affecting the 32-bit x86 architecture label Apr 22, 2024
@pmur pmur self-assigned this Apr 22, 2024
@gopherbot
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Change https://go.dev/cl/580796 mentions this issue: cmd/internal/obj/ppc64: fix incorrect int to int64 conversion when checking MOVD opcodes

@cheese
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cheese commented Apr 23, 2024

Change https://go.dev/cl/580796 mentions this issue: cmd/internal/obj/ppc64: fix incorrect int to int64 conversion when checking MOVD opcodes

I tested the patch and it fixed the build.

@pmur
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pmur commented Apr 24, 2024

@gopherbot please consider a backport to go 1.22. This prevents crosscompiling ppc64x code on 32 bit hosts.

@gopherbot
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Backport issue(s) opened: #67018 (for 1.22).

Remember to create the cherry-pick CL(s) as soon as the patch is submitted to master, according to https://go.dev/wiki/MinorReleases.

@gopherbot gopherbot mentioned this issue Apr 24, 2024
Closed
@dmitshur dmitshur added this to the Go1.23 milestone Apr 24, 2024
@dmitshur dmitshur added NeedsFix The path to resolution is known, but the work has not been done. and removed NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. labels Apr 24, 2024
@dmitshur dmitshur changed the title Go 1.22.x failed to be bootstrapped from 386 to ppc64le cmd/compile: Go 1.22.x failed to be bootstrapped from 386 to ppc64le Apr 24, 2024
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arch-386 Issues solely affecting the 32-bit x86 architecture arch-ppc64x NeedsFix The path to resolution is known, but the work has not been done.
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@cheese @dmitshur @gopherbot @mauri870 @pmur