UnsatisfiedLinkError使用痛饮与Java

当尝试使用痛饮包Java中的简单的C程序，我给出以下错误：UnsatisfiedLinkError使用痛饮与Java

java.lang.UnsatisfiedLinkError: /Users/localadmin/example/libexample.dylib: dlopen(/Users/localadmin/example/libexample.dylib, 1): no suitable image found. Did find: /Users/localadmin/example/libexample.dylib: file too shortstart

使用Mac 10.9.5，痛饮3.0.7，Java的1.7

我开始与以下文件：

example.c

/* A global variable */ 
double Foo = 3.0; 

/* Compute the greatest common divisor of positive integers */ 
int gcd(int x, int y) { 
    int g; 
    g = y; 
    while (x > 0) { 
     g = x; 
     x = y % x; 
     y = g; 
    } 
    return g; 
}

example.i

%module example 

%{ 
// code here is passed straight to example_wrap.c unmodified 
extern int gcd(int x, int y); 
extern double Foo; 
%} 

// code here is wrapped: 
extern int gcd(int x, int y); 
extern double Foo;

runme.java

public class runme { 

    static { 
    try { 
    System.loadLibrary("example"); 
    } catch (UnsatisfiedLinkError e) { 
     System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e); 
     System.exit(1); 
    } 
    } 

    public static void main(String argv[]) { 
    // Call our gcd() function 

    int x = 42; 
    int y = 105; 
    int g = example.gcd(x,y); 
    System.out.println("The gcd of " + x + " and " + y + " is " + g); 

    // Manipulate the Foo global variable 

    // Output its current value 
    System.out.println("Foo = " + example.getFoo()); 

    // Change its value 
    example.setFoo(3.1415926); 

    // See if the change took effect 
    System.out.println("Foo = " + example.getFoo()); 
    } 
}

我的命令行输入：

swig -java example.i 
gcc -c example.c example_wrap.c -I/System/Library/Frameworks/JavaVM.framework/Versions/A/Headers 
ld -r example.o example_wrap.o -o libexample.dylib 
javac *.java 
java -Djava.library.path=. runme

其次错误：

Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help. 
java.lang.UnsatisfiedLinkError: /Users/localadmin/example/libexample.dylib: dlopen(/Users/localadmin/example/libexample.dylib, 1): no suitable image found. Did find: 
    /Users/localadmin/example/libexample.dylib: file too short

我试着搜索了一堆用没有成功。任何帮助表示赞赏。

来源

2015-10-16 samT

但你有没有检查[动态链接问题]（http://swig.org/Doc2.0/Java.html#Java_dynamic_linking_problems）错误消息建议？ – MirMasej

是的，他们只涉及3个问题 - 其中没有涉及我得到的错误 – samT

在这个指令添加一个额外的标志：

ld -r -dylib example.o example_wrap.o -o libexample.dylib

必须需要的-dylib标志指定该文件类型为MH_DYLIB。

来源

2015-10-16 18:17:40 samT

UnsatisfiedLinkError使用痛饮与Java

回答

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