链接JVM时出错 [英] getting error while linking JVM

问题描述

JNI_CreateJavaVM（& jvm，（void **）& env，& args）;

 tcc C： \ TurboC ++ \Disk \TurboC3 \BIN \\\ CTest.c -I   C：\Program Files \ Java \ jdk1.6.0_16 \ include -I   C：\Program Files \ Java \ jdk1.6.0_16\include\win32 -I   C：\\ \\ Program Files \Java \ _jdk1.6.0_16 \lib -shared -o CTest.dll 
 
错误：tcc：未定义的符号'  _ JNI_CreateJavaVM @ 12' 

请帮帮我。

解决方案

你必须链接到JVM的库（向tcc'添加一些libjvm.a的引用' s命令行）。



如果你没有预编译对于TurboC ++的j jvm.lib文件，还有另一个选项 - 与jvm.dll文件链接并手动从JVM导出所有方法。这使用LoadLibrary / GetProcAddress函数。



如需简短的样本，请查看：

  / *   load library * /  
 HMODULE dll = LoadLibraryA（  jvm.dll）; 
 
  / *  声明一个函数指针并用dll代码的指针初始化它/  
 JNI_CreateJavaVM_func JNI_CreateJavaVM_ptr = GetProcAddress（dll，  JNI_CreateJavaVM）; 

JNI_CreateJavaVM(&jvm, (void **)&env, &args);

tcc C:\TurboC++\Disk\TurboC3\BIN\CTest.c -I "C:\Program Files\Java\jdk1.6.0_16\include" -I "C:\Program Files\Java\jdk1.6.0_16\include\win32" -I "C:\Program Files\Java\jdk1.6.0_16\lib" -shared -o CTest.dll

Error: tcc: undefined symbol '_JNI_CreateJavaVM@12'

please help me out.

解决方案

You have to link with JVM''s library (add some reference to libjvm.a to the tcc''s command line).

If you don''t have a precompiled jvm.lib file for TurboC++, there is another option - link with the jvm.dll file and export all the methods from JVM manually. This uses the LoadLibrary/GetProcAddress functions.

For a short sample look at this:

/* load library */
HMODULE dll = LoadLibraryA("jvm.dll");

/* declare a function pointer and initialize it with the "pointer" to dll's code */
JNI_CreateJavaVM_func JNI_CreateJavaVM_ptr = GetProcAddress(dll, "JNI_CreateJavaVM");

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