debugging C code

[MASX]

Hi everyone,
I have written a code for a single board computer (PC104). the board has linux as its operating system.
I am having some trouble debugging the code. The way i am doin it now is to insert printf commands at several points in my code. the printf output is sent to a text file. I check the output of the program later on from this text file.
Right now, When executing the code, the PC get stuck and I have to switch off the PC and turn it on again. I open the text file where i sent the printf commands to find it empty.
Is the text file empty because I aborted the system while it was running the c code?
Is there some error log I can access that saved the activities of my code?
Note: I dont have a debugger on my sytem (dgb).
Thanks.

[CommonTater]

Yep, the file is empty because you reset the computer before the buffers were written to disk.

Have a look at fflush() in your library documentation.

[Salem]

remote debugging with gdb - Google Search
Seriously, try and get the remote debug up and running.
You can spend days poking around with printf statements to guess where the problem is.

You might need to do this
fflush(fp);

Or even fopen + fprintf + fclose each time you want to print a message.


How much testing have you done on your host Linux system?
Consider writing some wrapper code for any functionality that is specific to the SBC. You should be able to test at least 90% of the code on the host.

[MASX]

Thank you. I think I will use fflush for now.