Profile Data Decoder produces single byte output file

Anthony Joch

Hello,

I'm running CCS v. 5.0.3 on Linux and attempting to use dynamic profile information to improve the code placement, as described in the optimizing compiler user’s guide (section 3.9.4 etc.).

I've been able to successfully generate a “.pdat” file by running my program after compiling with “--gen_profile_info”. However, I’ve been unable to process that output file with the “profile data decoder” program, pdd6x.

Specifically, if I run:

pdd6x -e=our.out -o=pprofout.prf pprofout.pdat

the output file that I get has only a single byte in it. No errors/warnings are given.

FYI, the binary is in ELF format.

Is there any way to diagnose what is going wrong here?

Thanks very much.

over 14 years ago

0 George Mock over 14 years ago

TI__Guru**** 251540 points

Well, the pprofout.pdat file is created by using the C I/O function fwrite. Writing that file out is a non-trivial task. You have to be executing under CCS to do it. Be sure you aren't having some C I/O problem described in this wiki article.

Thanks and regards,

-George

0 Anthony Joch over 14 years ago in reply to George Mock

Prodigy 150 points

Hi George,

Thanks you for your input.

I found the origin of my problem, but it wasn't due to what you suggested. The problem was that I hadn't included skeletal debug information with by build. I found the note in the compiler guide to that effect, and the tool is working now.

Thanks again,

Anthony

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Profile Data Decoder produces single byte output file