Why does kotlin/native hello world not output anything inside IntelliJ IDEA on Apple M1?

Question

I\'ve downloaded a fresh IntelliJ IDEA with the Kotlin multiplatform plugin and created a project using the Native application project template. This template creates a Main.kt file with the content:

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fun main() {\n    println("Hello, Kotlin/Native!")\n}\n

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As well as many other gradle files referencing kotlin("multiplatform") version "1.7.20". I can build and run the project from inside IntelliJ IDEA, but I see no hello world:

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我只能看到 gradle 输出和成功结果，但没有Hello Kotlin/Native! message anywhere. I\'ve tried changing the runDebugExecutableNative settings and checked the options related to show the console/output when stdout messages are printed:

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我看不到其他输出窗口/窗格，所以\xe2\x80\xa6 在哪里可以看到输出？项目构建调试或发布Kasha.kexe which I can run from the command line manually, but I\'m guessing an IDE shouldn\'t require me to run commands from the command line every time?

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$ ./build/bin/native/debugExecutable/Kasha.kexe\nHello, Kotlin/Native!\n

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我可以在运行窗格中看到一个灰色符号，它对应于输出> Task :runDebugExecutableNative SKIPPED。这是否意味着 IDE 只能构建但不能运行可执行文件？我正在使用 IntelliJ IDEA 2022.2.3（社区版）并且kotlin("multiplatform") version "1.7.20".

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更新为bppleman correctly guesses the problem is I\'m trying to run this on an Apple M1 machine. The gradle that comes out from the template is:

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kotlin {\n    val hostOs = System.getProperty("os.name")\n    val isMingwX64 = hostOs.startsWith("Windows")\n    val nativeTarget = when {\n        hostOs == "Mac OS X" -> macosX64("native")\n        hostOs == "Linux" -> linuxX64("native")\n        isMingwX64 -> mingwX64("native")\n        else -> throw GradleException("Host OS is not supported in Kotlin/Native.")\n    }\n\xe2\x80\xa6\n

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将macosX64呼叫替换为macosArm64 makes everything work as expected. But I guess now intel based apple machines will be on the wrong side of the fence?

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Answer 1

我看到问题有了新的编辑

用 macosArm64 替换 macosX64 调用使一切按预期工作。但我猜现在基于英特尔的苹果机器会站在栅栏的错误一边？

所以我将提交该问题的新答案

确实如你所说，换成intel mac后还是会出现问题，所以我的做法是同时判断当前的cpu平台，就像这样

val hostOs = System.getProperty("os.name")
val isMingw = hostOs.startsWith("Windows")
val nativeTarget = when {
    hostOs == "Mac OS X" -> {
        if (System.getProperty("os.arch").contains("aarch64")) {
            macosArm64("native")
        } else {
            macosX64("native")
        }
    }
    hostOs == "Linux" -> linuxX64("native")
    isMingw -> {
        if (System.getenv("ProgramFiles(x86)") != null) {
            mingwX86("native")
        } else {
            mingwX64("native")
        }
    }
    else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
}

当然你也可以这样做，这取决于你的需求

kotlin {
    val hostOs = System.getProperty("os.name")
    val isMingwX64 = hostOs.startsWith("Windows")
    val nativeTargets = when {
        hostOs == "Mac OS X" -> listOf(macosArm64("native"), macosX64("macosX64"))
        hostOs == "Linux" -> listOf(linuxX64("native"))
        isMingwX64 -> listOf(mingwX64("native"))
        else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
    }

    nativeTargets.forEach { target ->
        target.apply {
            binaries {
                executable {
                    entryPoint = "main"
                }
            }
        }
    }

    sourceSets {
        val nativeMain by getting
        val nativeTest by getting
        val macosX64Main by getting {
            dependsOn(nativeMain)
        }
        val macosX64Test by getting {
            dependsOn(nativeTest)
        }
    }
}

使用dependsOn来共享sourceSet。

需要注意的是，两个 macOS 源集之间只能有一个可执行条目

你不应该为 macosX64 添加另一个条目，除非你真的想要，然后你必须删除 dependentOn 依赖项

你会得到：