1、基于ARM平台Golang简单Demo：交叉编译

arm平台为M3352核心板。

编译环境为Ubuntu14.04

目标：在Ubuntu环境编译Go代码，在arm平台运行，每分钟打印当前时间

源代码文件名：go_arm_cross_build.go

---

package main

import (
	"fmt"
	"time"
)

func main(){
	for i:=0;i<100;i++{
		fmt.Println("Hello ARM")
		time.Sleep(time.Second)
		fmt.Println(time.Now())
	}

}

执行编译命令：

GOARM=7 GOARCH=arm GOOS=linux go build go_arm_cross_build.go

 将二进制文件拷贝到M3352核心板，执行

结果如下：

[root@M3352 opt]# ./go_arm_cross_build
Hello ARM
[root@M3352 opt]# ./go_arm_cross_build
Hello ARM
2019-01-07 17:08:19.871340981 +0000 UTC
Hello ARM
2019-01-07 17:08:20.87222599 +0000 UTC
Hello ARM
2019-01-07 17:08:21.872714272 +0000 UTC
Hello ARM
2019-01-07 17:08:22.873202554 +0000 UTC
Hello ARM
2019-01-07 17:08:23.873721353 +0000 UTC
Hello ARM
2019-01-07 17:08:24.874240151 +0000 UTC
Hello ARM
2019-01-07 17:08:25.874697915 +0000 UTC
Hello ARM
2019-01-07 17:08:26.875216713 +0000 UTC
Hello ARM
2019-01-07 17:08:27.875674477 +0000 UTC
Hello ARM
2019-01-07 17:08:28.876193276 +0000 UTC
Hello ARM
2019-01-07 17:08:29.876681558 +0000 UTC
Hello ARM
2019-01-07 17:08:30.877230875 +0000 UTC
Hello ARM
2019-01-07 17:08:31.877658119 +0000 UTC
Hello ARM
2019-01-07 17:08:32.878207436 +0000 UTC
Hello ARM
2019-01-07 17:08:33.878726235 +0000 UTC
Hello ARM
2019-01-07 17:08:34.879275551 +0000 UTC
Hello ARM
2019-01-07 17:08:35.879824868 +0000 UTC
Hello ARM
2019-01-07 17:08:36.880374184 +0000 UTC
Hello ARM
2019-01-07 17:08:37.880831948 +0000 UTC
Hello ARM
2019-01-07 17:08:38.881411782 +0000 UTC
Hello ARM
2019-01-07 17:08:39.881900063 +0000 UTC
Hello ARM
2019-01-07 17:08:40.882449379 +0000 UTC
Hello ARM
2019-01-07 17:08:41.882907143 +0000 UTC
Hello ARM
2019-01-07 17:08:42.883456459 +0000 UTC
Hello ARM
2019-01-07 17:08:43.883975259 +0000 UTC
Hello ARM
2019-01-07 17:08:44.884524574 +0000 UTC
Hello ARM
2019-01-07 17:08:45.885043373 +0000 UTC
Hello ARM
^C
[root@M3352 opt]#

执行成功