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。
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。