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golang中跨平台交叉编译涉及两个重要的环境变量:GOOS和GOARCH,分别代表Target Host OS和Target Host ARCH,如果没有显式设置这些环境变量,我们通过go env可以看到go编译器眼中这两个环境变量的当前值:

go env

GOARCH="amd64"
GOBIN="/home/work/software/go/bin"
GOEXE=""
GOHOSTARCH="amd64" //主机arch
GOHOSTOS="linux" //主机host
GOOS="linux"
GOPATH="/home/work/software/go/src/pkg:/home/work/develop/git/content_filter:/home/work/develop/git/content_filter/.koala"
GORACE=""
GOROOT="/home/work/software/go"
GOTOOLDIR="/home/work/software/go/pkg/tool/linux_amd64"
GO15vendOREXPERIMENT="1"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0"
CXX="g++"
CGO_ENABLED="1"

如果想要跨平台编译go程序,只需在build的时候制定目标主机的os和arch,如下例子所示所示
GOOS=windows GOARCH=386 go build -o hello.exe hello.go

其中二者可以设置如下参数:

$GOOS 	$GOARCH 	
	darwin 	386
	darwin 	amd64
	freebsd 	386
	freebsd 	amd64
	linux 	386
	linux 	amd64
	linux 	arm 	incomplete
	windows 	386 	incomplete

如果想要编译其他平台的可执行脚本,秩序指定相应的os和arch即可。