Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

CGo-enabled cross compilation (amd64 -> arm64) failed #39615

Closed
vps-eric opened this issue Jun 16, 2020 · 2 comments
Closed

CGo-enabled cross compilation (amd64 -> arm64) failed #39615

vps-eric opened this issue Jun 16, 2020 · 2 comments

Comments

@vps-eric
Copy link

@vps-eric vps-eric commented Jun 16, 2020

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

$ go version
go version go1.14.4 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=""
GOCACHE="/home/eric/.cache/go-build"
GOENV="/home/eric/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/eric/go"
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/eric/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-build999407722=/tmp/go-build -gno-record-gcc-switches"

What did you do?

$ cat main.go
package main

import "C"

func main() {
        fmt.Println("Hello world")
}
$ # Compile for NanoPi R2S, an arm64 system running Alpine Linux
$ env GOOS=linux GOARCH=arm64 CGO_ENABLED=1 CC=arm-linux-gnueabihf-gcc go build -o tester.arm

What did you expect to see?

Successful build

What did you see instead?

# runtime/cgo
In file included from _cgo_export.c:4:
cgo-gcc-export-header-prolog:25:14: error: size of array ‘_check_for_64_bit_pointer_matching_GoInt’ is negative
@cherrymui
Copy link
Contributor

@cherrymui cherrymui commented Jun 16, 2020

CC=arm-linux-gnueabihf-gcc

This looks like an ARM32 compiler. ARM64 GCC is usually named aarch64-* (e.g. aarch64-linux-gnu-gcc). Could you double check?

@vps-eric
Copy link
Author

@vps-eric vps-eric commented Jun 16, 2020

@cherrymui Changing the cross compiler resolved the error (but the binary still doesn't run properly on the R2S). Thank you for your help.

@vps-eric vps-eric closed this Jun 16, 2020
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Linked pull requests

Successfully merging a pull request may close this issue.

None yet
2 participants
You can’t perform that action at this time.