Support experimental targets. (#2681)

README.md

@@ -25,6 +25,8 @@ Then, build the compiler and libraries:
 
 	./gradlew bundle
 
+To build with experimental targets support compile with `-Porg.jetbrains.kotlin.native.experimentalTargets`.
+
 The build can take about an hour on a Macbook Pro.
 To run a shorter build with only the host compiler and libraries, run:
 

RELEASE_NOTES.md

@@ -23,18 +23,23 @@ the following platforms:
 
  * Mac OS X 10.11 and later (x86-64), host and target (`-target macos_x64`, default on macOS hosts)
  * Ubuntu Linux x86-64 (14.04, 16.04 and later), other Linux flavours may work as well, host and target
-   (`-target linux_x64`, default on Linux hosts, hosted on Linux, Windows and macOS)
+   (`-target linux_x64`, default on Linux hosts, hosted on Linux, Windows and macOS).
  * Microsoft Windows x86-64 (tested on Windows 7 and Windows 10), host and target (`-target mingw_x64`,
-   default on Windows hosts)
- * Microsoft Windows x86-32 cross-compiled target (`-target mingw_x86`), hosted on Windows
+   default on Windows hosts). Experimental support is available on Linux and macOS hosts (requires Wine).
+ * Microsoft Windows x86-32 cross-compiled target (`-target mingw_x86`), hosted on Windows.
+   Experimental support is available on Linux and macOS hosts (requires Wine).
  * Apple iOS (armv7 and arm64 devices, x86 simulator), cross-compiled target
-   (`-target ios_arm32|ios_arm64|ios_x64`), hosted on macOS
+   (`-target ios_arm32|ios_arm64|ios_x64`), hosted on macOS.
  * Linux arm32 hardfp, Raspberry Pi, cross-compiled target (`-target raspberrypi`), hosted on Linux, Windows and macOS
- * Linux MIPS big endian, cross-compiled target (`-target mips`), hosted on Linux
- * Linux MIPS little endian, cross-compiled target (`-target mipsel`), hosted on Linux
+ * Linux MIPS big endian, cross-compiled target (`-target mips`), hosted on Linux.
+ * Linux MIPS little endian, cross-compiled target (`-target mipsel`), hosted on Linux.
  * Android arm32 and arm64 (`-target android_arm32|android_arm64`) target, hosted on Linux, macOS and Windows
-   (only `android_arm32` at the moment)
- * WebAssembly (`-target wasm32`) target, hosted on Linux, Windows or macOS
+   (only `android_arm32` at the moment).
+ * WebAssembly (`-target wasm32`) target, hosted on Linux, Windows or macOS.
+ * Experimental support for Zephyr RTOS (`-target zephyr_stm32f4_disco`) is available on macOS, Linux
+   and Windows hosts.
+
+ To enable experimental targets Kotlin/Native must be recompiled with `org.jetbrains.kotlin.native.experimentalTargets` Gradle property set.
 
  Adding support for other target platforms shouldn't be too hard, if LLVM support is available.
 

backend.native/build.gradle

@@ -211,7 +211,7 @@ task teamcityPublishStdLibSources {
 
 targetList.each { target ->
     def konanJvmArgs =  [*HostManager.regularJvmArgs,
-            "-Dkonan.home=${rootProject.projectDir}",
+            "-Dkonan.home=${rootProject.projectDir}/dist",
             "-Djava.library.path=${project.buildDir}/nativelibs/$hostName",
     ]
 
@@ -242,6 +242,7 @@ targetList.each { target ->
 
         dependsOn 'unzipStdlibSources'
         dependsOn ":runtime:${target}Runtime"
+        dependsOn ":distCompiler"
     }
 
     task("${target}Start", type: JavaExec) {

build.gradle

@@ -41,7 +41,9 @@ convention.plugins.platformInfo = new PlatformInfo()
 ext {
     distDir = file('dist')
     dependenciesDir = DependencyProcessor.defaultDependenciesRoot
-    platformManager = new PlatformManager(DistributionKt.buildDistribution(projectDir.absolutePath))
+    experimentalEnabled = project.hasProperty("org.jetbrains.kotlin.native.experimentalTargets")
+    platformManager = new PlatformManager(DistributionKt.buildDistribution(projectDir.absolutePath),
+            ext.experimentalEnabled)
 
     kotlinCommonStdlibModule="org.jetbrains.kotlin:kotlin-stdlib-common:${kotlinVersion}:sources"
     kotlinCompilerModule="org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}"
@@ -296,6 +298,11 @@ task distCompiler(type: Copy) {
     from(project.file('konan')) {
         into('konan')
     }
+    if (experimentalEnabled) {
+        file('konan/experimentalTargetsEnabled').text = ""
+    } else {
+        delete('konan/experimentalTargetsEnabled')
+    }
 }
 
 task listDist(type: Exec) {

konan/konan.properties

@@ -338,6 +338,20 @@ llvmHome.mingw_x64 = msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1
 targetToolchain.mingw_x64 = msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1
 libffiDir.mingw_x64 = libffi-3.2.1-mingw-w64-x86-64
 
+targetToolchain.linux_x64-mingw_x64 = msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1
+targetToolchain.macos_x64-mingw_x64 = msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1
+dependencies.mingw_x64 = \
+    msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1 \
+    libffi-3.2.1-mingw-w64-x86-64
+dependencies.linux_x64-mingw_x64 = \
+    msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1 \
+    clang-llvm-6.0.1-linux-x86-64 \
+    libffi-3.2.1-2-linux-x86-64
+dependencies.macos_x64-mingw_x64 = \
+    msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1 \
+    clang-llvm-6.0.1-darwin-macos \
+    libffi-3.2.1-3-darwin-macos
+
 quadruple.mingw_x64 = x86_64-w64-mingw32
 targetSysRoot.mingw_x64 = msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1
 # For using with Universal Windows Platform (UWP) we need to use this slower option.
@@ -354,9 +368,6 @@ linkerKonanFlags.mingw_x64 =-static-libgcc -static-libstdc++ \
   -Wl,--defsym,__cxa_demangle=Konan_cxa_demangle
 linkerOptimizationFlags.mingw_x64 = -Wl,--gc-sections
 entrySelector.mingw_x64 = -Wl,--defsym,main=Konan_main
-dependencies.mingw_x64 = \
-    msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1 \
-    libffi-3.2.1-mingw-w64-x86-64
 
 # Windows i686, based on mingw-w64.
 targetToolchain.mingw_x64-mingw_x86 = msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1
@@ -364,6 +375,16 @@ dependencies.mingw_x64-mingw_x86 = \
     msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1 \
     msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1 \
     libffi-3.2.1-mingw-w64-x86-64
+targetToolchain.linux_x64-mingw_x86 = msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1
+targetToolchain.macos_x64-mingw_x86 = msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1
+dependencies.linux_x64-mingw_x86 = \
+    msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1 \
+    clang-llvm-6.0.1-linux-x86-64 \
+    libffi-3.2.1-2-linux-x86-64
+dependencies.macos_x64-mingw_x86 = \
+    msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1 \
+    clang-llvm-6.0.1-darwin-macos \
+    libffi-3.2.1-3-darwin-macos
 
 quadruple.mingw_x86 = i686-w64-mingw32
 targetSysRoot.mingw_x86 = msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1

runtime/build.gradle

@@ -20,8 +20,6 @@ targetList.each { targetName ->
         dependsOn "${targetName}Debug"
         dependsOn "${targetName}Release"
         target targetName
-	    if (!isWindows())
-	       compilerArgs '-fPIC'
         includeRuntime(delegate)
         linkerArgs project.file("../common/build/$targetName/hash.bc").path
     }

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Distribution.kt

@@ -39,6 +39,9 @@ class Distribution(
     val konanHome = findKonanHome()
     val konanSubdir = "$konanHome/konan"
     val mainPropertyFileName = "$konanSubdir/konan.properties"
+    val experimentalEnabled by lazy {
+        File("$konanSubdir/experimentalTargetsEnabled").exists
+    }
 
     private fun propertyFilesFromConfigDir(configDir: String, genericName: String): List<File> {
         val directory = File(configDir, "platforms/$genericName")

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/KonanTarget.kt

@@ -127,7 +127,7 @@ private class TargetManagerImpl(val userRequest: String?, val hostManager: HostM
     override val targetSuffix get() = target.name
 }
 
-open class HostManager(protected val distribution: Distribution = Distribution()) {
+open class HostManager(protected val distribution: Distribution = Distribution(), experimental: Boolean = false) {
 
     fun targetManager(userRequest: String? = null): TargetManager = TargetManagerImpl(userRequest, this)
 
@@ -142,6 +142,8 @@ open class HostManager(protected val distribution: Distribution = Distribution()
 
     private val zephyrSubtargets = distribution.availableSubTarget("zephyr").map { ZEPHYR(it) }
 
+    private val experimentalEnabled = experimental || distribution.experimentalEnabled
+
     private val configurableSubtargets = zephyrSubtargets
 
     val targetValues: List<KonanTarget> by lazy {
@@ -171,7 +173,7 @@ open class HostManager(protected val distribution: Distribution = Distribution()
         return target
     }
 
-    val enabled: List<KonanTarget> by lazy { 
+    val enabledRegular: List<KonanTarget> by lazy {
             when (host) {
                 KonanTarget.LINUX_X64 -> listOf(
                     KonanTarget.LINUX_X64,
@@ -181,7 +183,7 @@ open class HostManager(protected val distribution: Distribution = Distribution()
                     KonanTarget.ANDROID_ARM32,
                     KonanTarget.ANDROID_ARM64,
                     KonanTarget.WASM32
-                ) + zephyrSubtargets
+                )
                 KonanTarget.MINGW_X64 -> listOf(
                     KonanTarget.MINGW_X64,
                     KonanTarget.MINGW_X86,
@@ -191,7 +193,7 @@ open class HostManager(protected val distribution: Distribution = Distribution()
                     // TODO: toolchain to be fixed for that to work.
                     // KonanTarget.ANDROID_ARM64,
                     KonanTarget.WASM32
-                ) + zephyrSubtargets
+                )
                 KonanTarget.MACOS_X64 -> listOf(
                     KonanTarget.MACOS_X64,
                     KonanTarget.IOS_ARM32,
@@ -202,12 +204,29 @@ open class HostManager(protected val distribution: Distribution = Distribution()
                     KonanTarget.ANDROID_ARM32,
                     KonanTarget.ANDROID_ARM64,
                     KonanTarget.WASM32
-                ) + zephyrSubtargets
+                )
                 else ->
                     throw TargetSupportException("Unknown host platform: $host")
             }        
     }
 
+    val enabledExperimental: List<KonanTarget> by lazy {
+        when (host) {
+            KonanTarget.LINUX_X64 -> listOf(
+                    KonanTarget.MINGW_X86, KonanTarget.MINGW_X64
+            ) + zephyrSubtargets
+            KonanTarget.MACOS_X64 -> listOf(
+                    KonanTarget.MINGW_X86, KonanTarget.MINGW_X64
+            ) + zephyrSubtargets
+            KonanTarget.MINGW_X64 -> listOf<KonanTarget>(
+            ) + zephyrSubtargets
+            else -> throw TargetSupportException("Unknown host platform: $host")
+        }
+    }
+
+    val enabled : List<KonanTarget>
+        get() = if (experimentalEnabled) enabledRegular + enabledExperimental else enabledRegular
+
     fun isEnabled(target: KonanTarget) = enabled.contains(target)
 
     companion object {

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Linker.kt

@@ -303,7 +303,10 @@ open class MingwLinker(targetProperties: MingwConfigurables)
             return staticGnuArCommands(ar, executable, objectFiles, libraries)
 
         val dynamic = kind == LinkerOutputKind.DYNAMIC_LIBRARY
-        return listOf(Command(linker).apply {
+        return return listOf(when {
+                HostManager.hostIsMingw -> Command(linker)
+                else -> Command("wine64", "$linker.exe")
+        }.apply {
             +listOf("-o", executable)
             +objectFiles
             if (optimize) +linkerOptimizationFlags

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Platform.kt

@@ -29,7 +29,8 @@ class Platform(val configurables: Configurables)
     }
 }
 
-class PlatformManager(distribution: Distribution = Distribution()) : HostManager(distribution) {
+class PlatformManager(distribution: Distribution = Distribution(), experimental: Boolean = false) :
+        HostManager(distribution, experimental) {
 
     private val loaders = enabled.map {
         it to loadConfigurables(it, distribution.properties, DependencyProcessor.defaultDependenciesRoot.absolutePath)

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/KonanPlugin.kt

@@ -38,6 +38,7 @@ import org.jetbrains.kotlin.konan.KonanVersion
 import org.jetbrains.kotlin.konan.parseKonanVersion
 import org.jetbrains.kotlin.konan.target.HostManager
 import org.jetbrains.kotlin.konan.target.KonanTarget
+import org.jetbrains.kotlin.konan.target.buildDistribution
 import org.jetbrains.kotlin.konan.target.customerDistribution
 import org.jetbrains.kotlin.konan.util.DependencyProcessor
 import java.io.File
@@ -114,7 +115,10 @@ internal val Project.konanArtifactsContainer: KonanArtifactContainer
 // stage (e.g. by getting it from maven as a plugin dependency) and bring back the PlatformManager here.
 internal val Project.hostManager: HostManager
     get() = findProperty("hostManager") as HostManager? ?:
-        HostManager(customerDistribution(konanHome))
+            if (hasProperty("org.jetbrains.kotlin.native.experimentalTargets"))
+                HostManager(buildDistribution(rootProject.rootDir.absolutePath), true)
+            else
+                HostManager(customerDistribution(konanHome))
 
 internal val Project.konanTargets: List<KonanTarget>
     get() = hostManager.toKonanTargets(konanExtension.targets)