我的围棋工具是为错误的体系结构构建的吗

我是Go语言的忠实粉丝，现在我正在尝试探索x86/amd64之外的其他架构。我为ARM构建了Go，它似乎对这个目标有很好的支持。所有库都成功构建，但测试失败（因为它试图在我的amd64系统上运行ARM测试二进制文件）。

毕竟，我的$GOBIN文件夹中有5g/5l，它们生成有效且可工作的ARM二进制文件。但其他围棋工具发生了什么：

5a:        ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
5c:        ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
5g:        ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
5l:        ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
6cov:      ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
6nm:       ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
6prof:     ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
cgo:       ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
ebnflint:  ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
godefs:    ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
godoc:     ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
gofix:     ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
gofmt:     ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
goinstall: ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
gomake:    POSIX shell script, ASCII text executable
gopack:    ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
gopprof:   a perl script, ASCII text executable
gotest:    ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
gotry:     a bash script, ASCII text executable
gotype:    ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
govet:     ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
goyacc:    ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
hgpatch:   ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped

看到了吗？cgo是ARM二进制文件，gofix和gofmt也是ARM二进制文件。我想如果我提供$GOHOSTOS/$GOHOSTARCH变量，我会交叉编译我的应用程序？如何让cgo为ARM目标工作？