build: fails on WSL

[stevenh]

What version of Go are you using (go version)?

$ go version
go version go1.14.2 linux/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="/data/go/bin"
GOCACHE="/home/steveh/.cache/go-build"
GOENV="/home/steveh/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/data/go:/home/steveh/code"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/steveh/code/go/src/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 -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build772923501=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Run: ./all.bash

What did you expect to see?

The build complets

What did you see instead?

./all.bash
Building Go cmd/dist using /usr/local/go. (go1.14.2 linux/amd64)
Building Go toolchain1 using /usr/local/go.
Building Go bootstrap cmd/go (go_bootstrap) using Go toolchain1.
panic: invalid argument

goroutine 1 [running]:
bootstrap/cmd/link/internal/ld.Main(0x89f2c0, 0x20, 0x20, 0x1, 0x7, 0x10, 0x0, 0x0, 0x6d23cc, 0x1b, ...)
        /home/user/code/go/src/cmd/link/internal/ld/main.go:320 +0x1eba
main.main()
        /home/user/code/go/src/cmd/link/main.go:68 +0x163

go tool dist: FAILED: /home/user/code/go/pkg/tool/linux_amd64/link -extld=gcc -o /home/user/code/go/pkg/tool/linux_amd64/go_bootstrap /tmp/go-tool-dist-965633972/cmd/go/_go_.a: exit status 2
Building Go toolchain2 using go_bootstrap and Go toolchain1.
go tool dist: FAILED: /home/user/code/go/pkg/tool/linux_amd64/go_bootstrap install -gcflags=all= -ldflags=all= -i cmd/asm cmd/cgo cmd/compile cmd/link: fork/exec /home/user/code/go/pkg/tool/linux_amd64/go_bootstrap: exec format error

[gopherbot]

Change https://golang.org/cl/232805 mentions this issue: cmd/link: fix mode parameter to fallocate on Linux

[stevenh]

For reference this was caused by: 8ab37b1