运行已编译的C ++文件时出错(使用OpenGL)。错误:“ld.so检测到不一致:dl-version.c:224”

时间:2013-11-15 18:21:00

标签: opengl ubuntu

我在cpp中创建了一个简单的opengl文件。它适用于大学计算机。我能够编译该文件,但我无法运行已编译的文件。我得到的错误是:

Inconsistency detected by ld.so: dl-version.c: 224: _dl_check_map_versions: Assertion `needed != ((void *)0)' failed!

文件代码是:

    //
//  Model.cpp
//  cg-projects
//
//  Created by HUJI Computer Graphics course staff, 2013.
//

#include "ShaderIO.h"
#include "Model.h"

#include <GL/glew.h>
#ifdef __APPLE__
#include <OpenGL/OpenGL.h>
#else
#include <GL/gl.h>
#endif

#include <glm/glm.hpp>
#include <glm/gtc/type_ptr.hpp>
#include "glm/gtc/matrix_transform.hpp"

#define SHADERS_DIR "shaders/"

Model::Model() :
_vao(0), _vbo(0)
{

}

Model::~Model()
{
    if (_vao != 0)
        glDeleteVertexArrays(1, &_vao);
    if (_vbo != 0)
        glDeleteBuffers(1, &_vbo);
}

void Model::init()
{
    programManager::sharedInstance()
    .createProgram("default",
                   SHADERS_DIR "SimpleShader.vert",
                   SHADERS_DIR "SimpleShader.frag");

    GLuint program = programManager::sharedInstance().programWithID("default");

    // Obtain uniform variable handles:
    _fillColorUV  = glGetUniformLocation(program, "fillColor");

    // Initialize vertices buffer and transfer it to OpenGL
    {
        // For this example we create a single triangle:
        const float vertices[] = {
            0.75f, 0.75f, 0.0f, 1.0f,
            0.75f, -0.75f, 0.0f, 1.0f,
            -0.75f, -0.75f, 0.0f, 1.0f,
        };

        // Create and bind the object's Vertex Array Object:
        glGenVertexArrays(1, &_vao);
        glBindVertexArray(_vao);

        // Create and load vertex data into a Vertex Buffer Object:
        glGenBuffers(1, &_vbo);
        glBindBuffer(GL_ARRAY_BUFFER, _vbo);
        glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);

        // Tells OpenGL that there is vertex data in this buffer object and what form that vertex data takes:

        // Obtain attribute handles:
        _posAttrib = glGetAttribLocation(program, "position");
        glEnableVertexAttribArray(_posAttrib);
        glVertexAttribPointer(_posAttrib, // attribute handle
                              4,          // number of scalars per vertex
                              GL_FLOAT,   // scalar type
                              GL_FALSE,
                              0,
                              0);

        // Unbind vertex array:
        glBindVertexArray(0);
    }
}

void Model::draw()
{
    // Set the program to be used in subsequent lines:
    GLuint program = programManager::sharedInstance().programWithID("default");
    glUseProgram(program);

    GLenum polygonMode = GL_LINE;   // Also try using GL_FILL and GL_POINT
    glPolygonMode(GL_FRONT_AND_BACK, polygonMode);

    // Set uniform variable with RGB values:
    float red = 0.3f; float green = 0.5f; float blue = 0.7f;
    glUniform4f(_fillColorUV, red, green, blue, 1.0);

    // Draw using the state stored in the Vertex Array object:
    glBindVertexArray(_vao);

    size_t numberOfVertices = 3;
    glDrawArrays(GL_TRIANGLES, 0, numberOfVertices);

    // Unbind the Vertex Array object
    glBindVertexArray(0);

    // Cleanup, not strictly necessary
    glUseProgram(0);
}

void Model::resize(int width, int height)
{
    _width  = width;
    _height = height;
    _offsetX = 0;
    _offsetY = 0;
}

我正在使用ubuntu 13.10。

2 个答案:

答案 0 :(得分:20)

看起来某些东西已经被一些Ubuntu 13.10 sw更新改变了。我还有编译和运行的代码没有问题,只有一天我开始得到相同的断言`需要!=((void *)0)'失败!错误,但只有当我用当前的gcc / lib versios再次编译我的代码时。

调试后我发现断言错误来自/lib/i386-linux-gnu/ld-2.17.so

      struct link_map *needed = find_needed (strtab + ent->vn_file, map);

  /* If NEEDED is NULL this means a dependency was not found
     and no stub entry was created.  This should never happen.  */
  assert (needed != NULL);

据说这应该永远不会发生,并没有说明需要什么,但没有找到。一些gdb工作,我发现它需要libpthread.so.0。好问题是为什么/ usr / bin / ld链接器连接应用程序和ld.so不同意这个库的需要。

我没有故意使用libpthread但是从某个地方我得到了我的链接映射引用__pthread_key_create @@ GLIBC_2.0我不知道它来自哪里但它可能导致需要libpthread.so而不添加NEEDED libpthread.so。 objdump -p上的0如下:

Dynamic Section:
 NEEDED               libglut.so.3
 NEEDED               libGLU.so.1
 NEEDED               libGL.so.1
 NEEDED               libstdc++.so.6
 NEEDED               libgcc_s.so.1
 NEEDED               libpthread.so.0
 NEEDED               libc.so.6

我没有找到此问题的根本原因,但解决方法最少。您需要使用-pthread选项链接代码并对此库进行一些虚拟调用。

在Makefile libs中定义

 -lglut -lGLU -lGL -lm  -pthread

然后包含一些虚函数只是引用一些libpthread函数使链接器链接它,你得到NEEDED libpthread.so.0然后ld.so就是hap。

#include <pthread.h>
void junk() {
  int i;
  i=pthread_getconcurrency();
};

这对我有帮助,我希望它有所帮助。

Ubuntu launcpad中有更多分析 https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-319/+bug/1248642?comments=all

答案 1 :(得分:12)

如果你有像我这样的nvidia显卡,这可能对你有用


    g++ -L/usr/lib/nvidia-304/ your-file.cc -lglut -lGLEW -lGL

用nvidia驱动程序版本替换304。有关此错误的更多详细信息,请参阅此link