How do I link in files from the utils directory?

Ryan Lush67904

I want to use utils\ringbuf.c in my program. I would actually like to be able to use all of those files if I want. If I add "${SW_ROOT}/utils" to the search path the project will compile but it wont link. This makes sense I guess because its not building ringbuff.c so there is nothing to link in. If I manually add the file to the project all is well. Do I have to do this? I guess utils isn't a library like driverlib or grlib so I can't just add the directory to the search path and include the header file.

Did I just answer my own question or is there a better way to do this?

over 10 years ago

0 Markel Robregado over 10 years ago

Guru 86765 points

Hi Ryan,

What library are you using? Is it Tivaware library?

Example at Tivaware Library, if this ""${SW_ROOT}"" is included at #include search path then at your c file, to access a library in utils folder declare this below using #include directive.

#include "utils/uartstdio.h"

- kel

0 Ryan Lush67904 over 10 years ago in reply to Markel Robregado

Expert 1140 points

Yes I am using tivaware library.

#include "utils/uartstdio.h"

only works if I add uartstdio.c to the project as well. Otherwise it fails to link. I have added SW_ROOT to the search path. Without it it will complain about the #include "utils/uartstdio.h"

The #include isn't enough to tell it to build uartstdio.obj is it? The compiler knows its there, I can compile. I just can't link because uartstdio.obj doesn't exist

0 Markel Robregado over 10 years ago in reply to Ryan Lush67904

Guru 86765 points

I can't give you a solution at the moment.

Ryan Lush67904 said:
only works if I add uartstdio.c to the project as well. Otherwise it fails to link. I have added SW_ROOT to the search path. Without it it will complain about the #include "utils/uartstdio.h"

But, I have used uartstdio API's before and that is how I set it up at CCS for use. Same way uartstdio is setup at hello example program.

- kel

0 Ryan Lush67904 over 10 years ago in reply to Markel Robregado

Expert 1140 points

Yeah they have uartstdio.c linked into the project. That's the same thing I had to do. I didn't really think about why it didn't work until I typed the original question.

0 AartiG over 10 years ago

TI__Guru**** 173310 points

Ryan Lush67904 said:
If I add "${SW_ROOT}/utils" to the search path the project will compile but it wont link. This makes sense I guess because its not building ringbuff.c so there is nothing to link in.

That is correct. Adding the search path to the compiler's include path options is simply telling the compiler which directories to look in when searching for header files that are #included by source files. It is not a search path for source files themselves. The source files have to be either "added" or "linked" to the project in order to be compiled and for the .obj to be generated.

More on linking files and folders to a project can be found here:

http://processors.wiki.ti.com/index.php/Projects_and_Build_Handbook_for_CCS#Adding_or_linking_source_files_and_folders_to_project

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How do I link in files from the utils directory?