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我有一个使用 JOCL 库 ( http://www.jocl.org/ ) 并具有多个模块的项目。当我从命令行运行“./activator test”,或在 SBT 控制台中运行“test”命令时,我收到如下错误:
[info] Exception encountered when attempting to run a suite with class name: pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec *** ABORTED ***
[info] java.lang.UnsatisfiedLinkError: Error while loading native library "JOCL_0_1_9-linux-x86_64" with base name "JOCL_0_1_9"
[info] Operating system name: Linux
[info] Architecture : amd64
[info] Architecture bit size: 64
[info] ---(start of nested stack traces)---
[info] Stack trace from the attempt to load the library as a file:
[info] java.lang.UnsatisfiedLinkError: no JOCL_0_1_9-linux-x86_64 in java.library.path
[info] at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865)
[info] at java.lang.Runtime.loadLibrary0(Runtime.java:870)
[info] at java.lang.System.loadLibrary(System.java:1122)
[info] at org.jocl.LibUtils.loadLibrary(LibUtils.java:80)
[info] at org.jocl.CL.<clinit>(CL.java:47)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextDescription$.enumerate(CLContextDescription.scala:44)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.contextsDescriptions$lzycompute(CLContextsManager.scala:6)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.contextsDescriptions(CLContextsManager.scala:6)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.createCpuContext(CLContextsManager.scala:9)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.cpuContext$lzycompute(CLContextsCache.scala:24)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.cpuContext(CLContextsCache.scala:24)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.withCpuContext(CLContextsCache.scala:28)
[info] at pl.tarsa.sortalgobox.opencl.common.CpuSort.sort(CpuSort.scala:34)
[info] at pl.tarsa.sortalgobox.opencl.common.CpuSort.sort(CpuSort.scala:32)
[info] at pl.tarsa.sortalgobox.sorts.SortChecker.forEmptyArray(SortChecker.scala:31)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(CpuMergeSortSpec.scala:32)
[info] at pl.tarsa.sortalgobox.tests.CommonUnitSpecBase.guardedOpenCLTest(CommonUnitSpecBase.scala:40)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1.apply$mcV$sp(CpuMergeSortSpec.scala:31)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1.apply(CpuMergeSortSpec.scala:31)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1.apply(CpuMergeSortSpec.scala:31)
[info] at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
[info] at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
[info] at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
[info] at org.scalatest.Transformer.apply(Transformer.scala:22)
[info] at org.scalatest.Transformer.apply(Transformer.scala:20)
[info] at org.scalatest.FlatSpecLike$$anon$1.apply(FlatSpecLike.scala:1647)
[info] at org.scalamock.scalatest.AbstractMockFactory$$anonfun$withFixture$1.apply(AbstractMockFactory.scala:35)
[info] at org.scalamock.scalatest.AbstractMockFactory$$anonfun$withFixture$1.apply(AbstractMockFactory.scala:34)
[info] at org.scalamock.MockFactoryBase$class.withExpectations(MockFactoryBase.scala:41)
[info] at pl.tarsa.sortalgobox.tests.CommonUnitSpecBase.withExpectations(CommonUnitSpecBase.scala:28)
[info] at org.scalamock.scalatest.AbstractMockFactory$class.withFixture(AbstractMockFactory.scala:34)
[info] at pl.tarsa.sortalgobox.tests.CommonUnitSpecBase.withFixture(CommonUnitSpecBase.scala:28)
[info] at org.scalatest.FlatSpecLike$class.invokeWithFixture$1(FlatSpecLike.scala:1644)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1656)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1656)
[info] at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
[info] at org.scalatest.FlatSpecLike$class.runTest(FlatSpecLike.scala:1656)
[info] at org.scalatest.FlatSpec.runTest(FlatSpec.scala:1683)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1714)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1714)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
[info] at scala.collection.immutable.List.foreach(List.scala:381)
[info] at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
[info] at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:390)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:427)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
[info] at scala.collection.immutable.List.foreach(List.scala:381)
[info] at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
[info] at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)
[info] at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)
[info] at org.scalatest.FlatSpecLike$class.runTests(FlatSpecLike.scala:1714)
[info] at org.scalatest.FlatSpec.runTests(FlatSpec.scala:1683)
[info] at org.scalatest.Suite$class.run(Suite.scala:1424)
[info] at org.scalatest.FlatSpec.org$scalatest$FlatSpecLike$$super$run(FlatSpec.scala:1683)
[info] at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1760)
[info] at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1760)
[info] at org.scalatest.SuperEngine.runImpl(Engine.scala:545)
[info] at org.scalatest.FlatSpecLike$class.run(FlatSpecLike.scala:1760)
[info] at org.scalatest.FlatSpec.run(FlatSpec.scala:1683)
[info] at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:462)
[info] at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:671)
[info] at sbt.TestRunner.runTest$1(TestFramework.scala:76)
[info] at sbt.TestRunner.run(TestFramework.scala:85)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1$$anonfun$apply$8.apply(TestFramework.scala:202)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1$$anonfun$apply$8.apply(TestFramework.scala:202)
[info] at sbt.TestFramework$.sbt$TestFramework$$withContextLoader(TestFramework.scala:185)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1.apply(TestFramework.scala:202)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1.apply(TestFramework.scala:202)
[info] at sbt.TestFunction.apply(TestFramework.scala:207)
[info] at sbt.Tests$$anonfun$9.apply(Tests.scala:216)
[info] at sbt.Tests$$anonfun$9.apply(Tests.scala:216)
[info] at sbt.std.Transform$$anon$3$$anonfun$apply$2.apply(System.scala:44)
[info] at sbt.std.Transform$$anon$3$$anonfun$apply$2.apply(System.scala:44)
[info] at sbt.std.Transform$$anon$4.work(System.scala:63)
[info] at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
[info] at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
[info] at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
[info] at sbt.Execute.work(Execute.scala:235)
[info] at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
[info] at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
[info] at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
[info] at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
[info] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[info] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[info] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[info] at java.lang.Thread.run(Thread.java:745)
[info] Stack trace from the attempt to load the library as a resource:
[info] java.lang.UnsatisfiedLinkError: Native Library /tmp/libJOCL_0_1_9-linux-x86_64.so already loaded in another classloader
[info] at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1903)
[info] at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1822)
[info] at java.lang.Runtime.load0(Runtime.java:809)
[info] at java.lang.System.load(System.java:1086)
[info] at org.jocl.LibUtils.loadLibraryResource(LibUtils.java:188)
[info] at org.jocl.LibUtils.loadLibrary(LibUtils.java:91)
[info] at org.jocl.CL.<clinit>(CL.java:47)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextDescription$.enumerate(CLContextDescription.scala:44)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.contextsDescriptions$lzycompute(CLContextsManager.scala:6)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.contextsDescriptions(CLContextsManager.scala:6)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.createCpuContext(CLContextsManager.scala:9)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.cpuContext$lzycompute(CLContextsCache.scala:24)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.cpuContext(CLContextsCache.scala:24)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.withCpuContext(CLContextsCache.scala:28)
[info] at pl.tarsa.sortalgobox.opencl.common.CpuSort.sort(CpuSort.scala:34)
[info] at pl.tarsa.sortalgobox.opencl.common.CpuSort.sort(CpuSort.scala:32)
[info] at pl.tarsa.sortalgobox.sorts.SortChecker.forEmptyArray(SortChecker.scala:31)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(CpuMergeSortSpec.scala:32)
[info] at pl.tarsa.sortalgobox.tests.CommonUnitSpecBase.guardedOpenCLTest(CommonUnitSpecBase.scala:40)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1.apply$mcV$sp(CpuMergeSortSpec.scala:31)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1.apply(CpuMergeSortSpec.scala:31)
[info] at pl.tarsa.sortalgobox.opencl.CpuMergeSortSpec$$anonfun$1.apply(CpuMergeSortSpec.scala:31)
[info] at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
[info] at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
[info] at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
[info] at org.scalatest.Transformer.apply(Transformer.scala:22)
[info] at org.scalatest.Transformer.apply(Transformer.scala:20)
[info] at org.scalatest.FlatSpecLike$$anon$1.apply(FlatSpecLike.scala:1647)
[info] at org.scalamock.scalatest.AbstractMockFactory$$anonfun$withFixture$1.apply(AbstractMockFactory.scala:35)
[info] at org.scalamock.scalatest.AbstractMockFactory$$anonfun$withFixture$1.apply(AbstractMockFactory.scala:34)
[info] at org.scalamock.MockFactoryBase$class.withExpectations(MockFactoryBase.scala:41)
[info] at pl.tarsa.sortalgobox.tests.CommonUnitSpecBase.withExpectations(CommonUnitSpecBase.scala:28)
[info] at org.scalamock.scalatest.AbstractMockFactory$class.withFixture(AbstractMockFactory.scala:34)
[info] at pl.tarsa.sortalgobox.tests.CommonUnitSpecBase.withFixture(CommonUnitSpecBase.scala:28)
[info] at org.scalatest.FlatSpecLike$class.invokeWithFixture$1(FlatSpecLike.scala:1644)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1656)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1656)
[info] at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
[info] at org.scalatest.FlatSpecLike$class.runTest(FlatSpecLike.scala:1656)
[info] at org.scalatest.FlatSpec.runTest(FlatSpec.scala:1683)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1714)
[info] at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1714)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
[info] at scala.collection.immutable.List.foreach(List.scala:381)
[info] at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
[info] at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:390)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:427)
[info] at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
[info] at scala.collection.immutable.List.foreach(List.scala:381)
[info] at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
[info] at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)
[info] at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)
[info] at org.scalatest.FlatSpecLike$class.runTests(FlatSpecLike.scala:1714)
[info] at org.scalatest.FlatSpec.runTests(FlatSpec.scala:1683)
[info] at org.scalatest.Suite$class.run(Suite.scala:1424)
[info] at org.scalatest.FlatSpec.org$scalatest$FlatSpecLike$$super$run(FlatSpec.scala:1683)
[info] at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1760)
[info] at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1760)
[info] at org.scalatest.SuperEngine.runImpl(Engine.scala:545)
[info] at org.scalatest.FlatSpecLike$class.run(FlatSpecLike.scala:1760)
[info] at org.scalatest.FlatSpec.run(FlatSpec.scala:1683)
[info] at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:462)
[info] at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:671)
[info] at sbt.TestRunner.runTest$1(TestFramework.scala:76)
[info] at sbt.TestRunner.run(TestFramework.scala:85)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1$$anonfun$apply$8.apply(TestFramework.scala:202)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1$$anonfun$apply$8.apply(TestFramework.scala:202)
[info] at sbt.TestFramework$.sbt$TestFramework$$withContextLoader(TestFramework.scala:185)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1.apply(TestFramework.scala:202)
[info] at sbt.TestFramework$$anon$2$$anonfun$$init$$1.apply(TestFramework.scala:202)
[info] at sbt.TestFunction.apply(TestFramework.scala:207)
[info] at sbt.Tests$$anonfun$9.apply(Tests.scala:216)
[info] at sbt.Tests$$anonfun$9.apply(Tests.scala:216)
[info] at sbt.std.Transform$$anon$3$$anonfun$apply$2.apply(System.scala:44)
[info] at sbt.std.Transform$$anon$3$$anonfun$apply$2.apply(System.scala:44)
[info] at sbt.std.Transform$$anon$4.work(System.scala:63)
[info] at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
[info] at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
[info] at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
[info] at sbt.Execute.work(Execute.scala:235)
[info] at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
[info] at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
[info] at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
[info] at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
[info] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[info] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[info] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[info] at java.lang.Thread.run(Thread.java:745)
[info] ---(end of nested stack traces)---
[info] at org.jocl.LibUtils.loadLibrary(LibUtils.java:122)
[info] at org.jocl.CL.<clinit>(CL.java:47)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextDescription$.enumerate(CLContextDescription.scala:44)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.contextsDescriptions$lzycompute(CLContextsManager.scala:6)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.contextsDescriptions(CLContextsManager.scala:6)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsManager$.createCpuContext(CLContextsManager.scala:9)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.cpuContext$lzycompute(CLContextsCache.scala:24)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.cpuContext(CLContextsCache.scala:24)
[info] at pl.tarsa.sortalgobox.opencl.common.CLContextsCache$.withCpuContext(CLContextsCache.scala:28)
[info] at pl.tarsa.sortalgobox.opencl.common.CpuSort.sort(CpuSort.scala:34)
根据 JOCL,第一个模块/子项目中的测试不会出现这些错误。即,当我执行“./activator test”时,来自某些(首先测试的)模块的 OpenCL 测试可以工作,而所有其他模块则不能。当我执行“./activator”来生成 SBT 控制台,然后多次运行“test”时,第一次它的行为就像普通的“./activator test”,但对于下一次测试运行,所有 OpenCL 测试都会失败并出现 UnsatisfiedLinkError。
根据这个答案:https://stackoverflow.com/a/23157190/492749 SBT 使用一些神奇的类加载器,并为每个此类加载器重命名 native 库。问题是 JOCL 在加载某些 Java 类期间解压 native 库,并且生成的文件名和位置始终相同。换句话说:SBT的魔法与JOCL的魔法不能很好地配合。
您的解决方案是什么?
PS:从 IntelliJ IDEA 中执行时测试效果很好 - 可能 IDEA 不使用类加载器魔法。
最佳答案
According to this answer: https://stackoverflow.com/a/23157190/492749 SBT uses some magic classloaders and renames native libraries for each such classloader. The problem is that JOCL unpacks the native libraries during loading of some Java class and the resulting filename and location is always the same. In other words: SBT's magic doesn't play well with JOCL magic.
这对我来说并不是自动发生的;我认为它只在加载 SBT 插件时使用。我不得不adapt the SBT classloader :
// adapted from sbt.classpath.NativeCopyLoader
package scalan.compilation.lms
import java.io.File
import java.net.{URLClassLoader, URL}
import java.nio.file.Files
/**
* Loads native libraries from a temporary location in order to work around the jvm native library uniqueness restriction.
*
* The loader will provide native libraries listed in `explicitLibraries` and on `searchPaths` by copying them to `tempDirectory`.
*/
class NativeCopyLoader(explicitLibraries: Seq[File], searchPaths: Seq[File], urls: Array[URL], parent: ClassLoader) extends URLClassLoader(urls, parent) {
private[this] val mapped = new collection.mutable.HashMap[String, String]
private[this] val tempDirectory = Files.createTempDirectory("native-library-copies").toFile
tempDirectory.deleteOnExit()
override protected def findLibrary(name: String): String =
synchronized { mapped.getOrElseUpdate(name, findLibrary0(name)) }
private[this] def findLibrary0(name: String): String = {
val mappedName = System.mapLibraryName(name)
val explicit = explicitLibraries.filter(_.getName == mappedName).toStream
val search = searchPaths.toStream flatMap relativeLibrary(mappedName)
(explicit ++ search).headOption.map(copy).orNull
}
private[this] def relativeLibrary(mappedName: String)(base: File): Seq[File] = {
val f = new File(base, mappedName)
if (f.isFile) f :: Nil else Nil
}
private[this] def copy(f: File): String = {
val target = new File(tempDirectory, f.getName)
Files.copy(f.toPath, target.toPath)
target.getAbsolutePath
}
}
然后确保在加载加载 native 库的类时使用它。然而,这可能需要修改才能与 JOCL magic 一起使用。
关于sbt - 多模块项目中的"UnsatisfiedLinkError: Native Library already loaded in another classloader",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30396853/
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我正在尝试编译我的 native 代码。这是我的 android.mk 文件 //part1-static lib LOCAL_PATH := $(call my-dir) include $(CLE
我正在开发一个带有沙丘的大型图书馆。让我们调用这个库L . 为了避免造成大困惑,沙丘项目有许多较小的库:A , B , C , ... 这些库相互依赖。 我希望用户能够 opam install L
在 unix 之上使用 C 语言工作,我正在加载和使用共享库,如下所示: ... handle = dlopen("nameOfLib"); ... libInit(); ... libGoToSta
我试图找出一种更简单的方法来为XCode中的链接器构建阶段复制/同步框架列表。我知道我可以在Xcode中复制目标,但这是用于创建新的Cocoa Touch Unit Testing Bundle目标。
例如/lib/的描述是它包含系统的共享库文件。 图书馆到底是什么?我们谈论的库文件是否类似于在 C 中导入库?库文件中包含什么以及它们的用途是什么? 它与.dll 有什么关系 最佳答案 库只是一个代码
我有这样的目录结构 . --compile_c.sh --compile_java.sh --config.sh --execute_java.sh --run.sh --src --ccode
我正在更新一些 Makefile 以从 Make 3.81 移动到 3.82。在多个地方,原作者使用了类似这样的东西来构建静态库: all: lib$(library).a($objects) 这似乎
我是 Rust 的新手,正在尝试了解 Cargo 的东西。我在他们的常见问题解答中读到关于 "why do binaries have Cargo.lock in version control, b
我正在尝试使用 Microsoft Enterprise Library 中的 DatabaseFactory 方法。 using Microsoft.Practices.EnterpriseLibr
我刚刚升级到Xcode 5.1,突然出现一个新警告: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctool
然后新的Enterprise Library 6出来了,可以是downloaded here .我已将 EnterpriseLibrary6-binaries.exe 下载并解压缩到我的 C: 驱动器
我正在尝试将 native 库与我的 Eclipse 插件捆绑在一起。当我提供库的路径时 -Djava.library.path ,它完美无缺。 但是,当我将它添加到 MANIFEST.MF 中时文件
在我的 Android Studio 项目中,我有两个子项目/模块:一个 Android 应用程序(App1)和一个 Android 库项目(LibraryProject1)。 App1取决于 Lib
我最近使用 Google 的 Closure 编译器创建了一个 JavaScript 库:https://github.com/bvaughn/task-runner 我打算让这个库供那些也需要完整闭
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