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Altera_Forum
Honored Contributor I
1,240 Views

undefined reference to fseek

Hello everyone i am doing edge detection on de2-115 using quartus and nios2.  

When i tried to build my project it shows me errors like undefined reference to fseek, fread, fopen. i have included all header files like stdio.h and stdlib.h 

Can anyone tell me how to solve this errors.
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4 Replies
Altera_Forum
Honored Contributor I
129 Views

You also need to link in the library that contains those functions. See the software development documentation for details. This post also has some good information. http://www.alteraforum.com/forum/showthread.php?t=37240

Altera_Forum
Honored Contributor I
129 Views

 

--- Quote Start ---  

You also need to link in the library that contains those functions. See the software development documentation for details. This post also has some good information. http://www.alteraforum.com/forum/showthread.php?t=37240 

--- Quote End ---  

 

 

I was implementing edge detection on nios2. when i run the c program for edge detection i was getting this errors like undefined reference to fseek, fopen, fread, fopen and others were regarding on chip memory overflow. so I did setting on bsp  

1:Settings --> Common --> hal --> enable_small_c_library 

2:"hal.enable_small_c_library" 

So it cleared all errors regarding Fseek and others undefined reference but I have still this errors.  

Do you know how to solve this one 

Thankshttp://www.alteraforum.com/forum/attachment.php?attachmentid=12069&stc=1
Altera_Forum
Honored Contributor I
129 Views

That error is caused because as it says, your object code is too large to fit in the on-chip memory. You can either move your code to sram or sdram, or enlarge the on-chip memory (if possible), or shrink your object code by going back to the small C library and not using fopen, fread, fseek, etc.

Altera_Forum
Honored Contributor I
129 Views

Hello again,  

 

I have enlarge the on chip memory size and disable small c library. So now I am running my program its just giving one printf statement.  

in my C program It has one input image and output will give me edge detected image. My question where I have to put my source images. I have kept it in the folder where my helloworld program is stored. Is it right ?? 

 

Thanks
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