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error: ld returned 1 exit status

sub :- error: ld returned 1 exit status

hi to all, I've centos7.5 and codeblocks17.12 in VM. I am building a simple shared library file. but having following problem:-

header file:-
-------------
singlyll.h

Code:

#ifndef SINGLYLL_H_INCLUDED

#define SINGLYLL_H_INCLUDED



#include <iostream>

#include <cstdlib>



class  linklist

{

    struct node

    {

        int data;

        node *link;

    };



    node *start, *p;





public:



void display( linklist * pll );

};



#endif // SINGLYLL_H_INCLUDED

implementation file :-
---------------------
singlyll.cpp

Code:

#include "singlyll.h"



using namespace std;



void linklist::display(  linklist *pll)

{

    if(pll->start == NULL)

    {

        cout << "list is empty\n";



        return;

    }



    cout << "List : ";



    node *p = pll->start;



    for(; p != NULL; p = p->link)

    {

        cout << p->data <<"\t";

    }

    cout <<"\n\n";

}

build message :-

Code:

error: ld returned 1 exit status

-------------- Build: Debug in singlyll (compiler: GNU GCC Compiler)---------------

Code:

g++ -shared  obj/Debug/singlyll.o  -o bin/Debug/libsinglyll.so  

/usr/bin/ld: obj/Debug/singlyll.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC

/usr/bin/ld: final link failed: Nonrepresentable section on output

collect2: error: ld returned 1 exit status

Process terminated with status 1 (0 minute(s), 0 second(s))

1 error(s), 0 warning(s) (0 minute(s), 0 second(s))

your second line gives you a BIG Clue

Code:

/usr/bin/ld: obj/Debug/singlyll.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC

your linking is wrong. look at the tail end of that clue. ;)

vector why not use that instead. just an idea.

i didn't get your point. please tell me how to do it in CodeBlocks.

Quote:

your second line gives you a BIG Clue
Code:

Code:

/usr/bin/ld: obj/Debug/singlyll.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC

Compiler Settings
Other Options
add this: -fPIC

Thanks for reply. I did it like this :-
Attachment 28574

but having same problem.

what are you doing exactly? I did this,
link.h

Code:

#ifndef LINKKY_H_INCLUDED

#define LINKKY_H_INCLUDED



struct node

  {

    int data;

    node *next;

  };



class list

  {

    private:

    node *head, *tail;

    public:

    list()

    {

      head=NULL;

      tail=NULL;

    }

    void display(list * pll);

    void display();

  };







#endif // LINKKY_H_INCLUDED

link.cpp

Code:

#include<iostream>

#include <cstdio>

#include <cstdlib>

#include "linkky.h"





using namespace std;



void list::display(  list *pll)

{

    if(pll->head == NULL)

    {

        cout << "list is empty\n";



        return;

    }



    cout << "List : ";



    node *p = pll->head;



    for(; p != NULL; p = p->next)

    {

        cout << p->data <<"\t";

    }

    cout <<"\n\n";

}



void list::display()

  {

    node *temp=new node;

    temp=head;

    while(temp!=NULL)

    {

      cout<<temp->data<<"\t";

      temp=temp->next;

    }

  }

in codeblocks under settings->compiler-> I selected follow c++ 14 and it compiles without error.

i found this on a very similar error you're getting.

https://stackoverflow.com/questions/...str1-8-can-not

You might want to do a 'Build All' or 'Rebuild' or 'Clean and Build' or anyhow it is called.

thank you very much friend,. I did as you told and I got solution.