可以将Go可执行文件用作动态库吗?

huangapple go评论84阅读模式
英文:

Can Go executable be used as a dynamic library?

问题

我正在使用GoLang编写一个通用库,并希望将其发布为动态库,以供使用任何语言编写的其他应用程序使用。

如果我使用C/C++编写这个库,我会生成一个.dll或.so文件,可以在任何其他语言中导入和使用。在GoLang中,我该如何做到这一点?

如果我只生成一个Go可执行文件,能否将其用作动态库的替代品?

英文:

I am writing a generic library in GoLang and want to publish it (like a dynamic library) to be used by other apps written in any language.

If I write this lib in C/C++, I would have generated a .dll or .so file which can be imported and used in any other language. How can I do this in GoLang?

If I just generate a Go executable, can I use it instead of a dynamic library?

答案1

得分: 3

你可以在Go语言中构建一个C共享库,这将生成一个常规的.dll.so文件,其中包含与C调用约定兼容的导出函数,以便可以从其他语言中调用它们。

使用go build -buildmode=c-shared进行编译。

参见go build命令 - 构建模式

例如:

src/go/main.go:

package main

import "C"
import "fmt"

//export helloLib
func helloLib(x C.int) {
    fmt.Printf("Hello from Go! x=%d\n", x)
}

func main() {}

src/c/main.c:

void helloLib(int);

int main() {
    helloLib(12345);
}

构建和运行:

$ go build -buildmode=c-shared -o libmy.so ./src/go/
$ gcc -o test src/c/main.c libmy.so
$ ./test
Hello from Go! x=12345
$
英文:

You can build a C-shared library in Go, this will produce a regular .dll or .so with exported functions compatible with the C calling convention, so that they can be invoked from other languages.

Compile with go build -buildmode=c-shared.

See go build command - Build modes

For example:

src/go/main.go:

package main

import "C"
import "fmt"

//export helloLib
func helloLib(x C.int) {
	fmt.Printf("Hello from Go! x=%d\n", x)
}

func main() {}

src/c/main.c:

void helloLib(int);

int main() {
    helloLib(12345);
}

Building and running:

$ go build -buildmode=c-shared -o libmy.so ./src/go/
$ gcc -o test src/c/main.c libmy.so
$ ./test
Hello from Go! x=12345
$

答案2

得分: -2

我相信可以使用cgo实现这个功能:
https://pkg.go.dev/cmd/cgo

文档中说明了Go函数可以导出供C代码使用。

英文:

I believe it is possible using cgo:
https://pkg.go.dev/cmd/cgo

It is stated that Go functions can be exported for use by C code.

huangapple
  • 本文由 发表于 2023年1月7日 04:04:26
  • 转载请务必保留本文链接:https://go.coder-hub.com/75035609.html
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