Debugger (gdb, mingw, msys2) using mixed development in netbeans is not hiting breakpoints in c/c++ code.

When i go to debug a native method, a message like :

Can not find native process using grep by .*java.+:-1.*

Inside ClassLoder.class, in findNative method, the variable libs has this message:

Variable information is not available, source compiled without -g option. Value of "libs" is not known.

the code about:

package nativemessager;

/**
 *
 * @author Julio
 */
public class NativeMessager {
    
    private native String getLine(String message);
    static{
        System.loadLibrary("libgetline");
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println(new NativeMessager().getLine("this is a jni message."));
    }
    
} 



native code:

#include <iostream>
#include "NativeMessager.h"

jstring JNICALL Java_nativemessager_NativeMessager_getLine
  (JNIEnv * env, jobject object, jstring message) {    
    
    const char* str;
    str = env->GetStringUTFChars(message, NULL);
    env->ReleaseStringUTFChars(message, str);
    
    std::cout << str << std::endl;
    
    return message;
    
}