gccgo problem compiling go from source

gccgo problem compiling go from source

[Gerrit Binnenmars]

Hello,

I used crosstool-ng successfully to build a go compiler for ppc e500.
Unfortunately go build does not support ppc therefore go needs to be
build from source using the amd64 gccgo compiler that I also build
with crosstool-ng.

Compiling go from source fails:
Problem: undefined name stdpkg in internal/goroot/gccgo.go

I included the output of my build script below. Any help or tips are welcome.

With kind regards,

Gerrit Binnenmars

Info:
This is crosstool-NG version 1.24.0.191_364ed7a
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/maintain/.cache/go-build"
GOENV="/home/maintain/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/maintain/gonew/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/maintain/gonew"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/maintain/x-tools/x86_64-e500-linux-gnu/x86_64-e500-linux-gnu/sysroot/lib"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/maintain/x-tools/x86_64-e500-linux-gnu/x86_64-e500-linux-gnu/sysroot/lib/pkg/tool/linux_amd64"
GCCGO="/home/maintain/x-tools/x86_64-e500-linux-gnu/bin/gccgo"
AR="ar"
CC="/home/maintain/x-tools/x86_64-e500-linux-gnu/bin/gcc"
CXX="/home/maintain/x-tools/x86_64-e500-linux-gnu/bin/g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="--with-sysroot=/home/maintain/x-tools/x86_64-e500-linux-gnu/x86_64-e500-linux-gnu/sysroot"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0
-fdebug-prefix-map=/tmp/go-build355977706=/tmp/go-build
-gno-record-gcc-switches"
go version go1.15.2 linux/amd64
gccgo (GCC) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

WORK=/tmp/go-build273889551
mkdir -p $WORK/b100/
cd $WORK
/home/maintain/x-tools/x86_64-e500-linux-gnu/bin/gccgo
-fgo-importcfg=/dev/null -c -x c - -o /dev/null || true
cd /home/maintain/gonew/src/internal/goroot
/home/maintain/x-tools/x86_64-e500-linux-gnu/bin/gccgo -c -g -m64
-fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches
-fgo-pkgpath=internal/goroot -o $WORK/b100/_go_.o -I
$WORK/b100/_importcfgroot_ ./gccgo.go
mkdir -p $WORK/b027/
mkdir -p $WORK/b027/_importcfgroot_/cmd/go/internal
ln -s /home/maintain/.cache/go-build/ad/ade44815e7af8b7305b2db4099ec5b08aafcbd6e374a2c13d8e99c2986ca93c6-d
$WORK/b027/_importcfgroot_/cmd/go/internal/libauth.a
ln -s /home/maintain/.cache/go-build/d2/d26f05f163d86aecfadfbb952dfef9a314aa1c84c23fddd39bce127ccc85d101-d
$WORK/b027/_importcfgroot_/cmd/go/internal/libcfg.a
mkdir -p $WORK/b027/_importcfgroot_/cmd/internal
ln -s /home/maintain/.cache/go-build/2f/2f6811b0804c481edbfd9952d1aac22414f84ee1aec229218b03956bf3f9aa7a-d
$WORK/b027/_importcfgroot_/cmd/internal/libbrowser.a
cd /home/maintain/gonew/src/cmd/go/internal/web
/home/maintain/x-tools/x86_64-e500-linux-gnu/bin/gccgo -c -g -m64
-fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches
-fgo-pkgpath=cmd/go/internal/web -o $WORK/b027/_go_.o -I
$WORK/b027/_importcfgroot_ ./api.go ./http.go ./url.go ./url_other.go
# internal/goroot
src/internal/goroot/gccgo.go:24:10: error: reference to undefined name 'stdpkg'
   24 |   return stdpkg[path]
      |          ^
# cmd/go/internal/web
src/cmd/go/internal/web/api.go:92:45: error: reference to undefined
field or method 'Redacted'
   92 |   return nil, fmt.Errorf("reading %s: %v", u.Redacted(), err)