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Weird things about the symbols table

 
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Radamantis



Joined: 14 Apr 2008
Posts: 4
Location: Caserta - Italy

PostPosted: Tue May 13, 2008 1:52 am    Post subject: Weird things about the symbols table Reply with quote

Hi, i'm an italian student and i'm experiencing programming in the cell environment for my graduation thesis. Today something weird happened when i compiled an SPU image using spu-gfortran: when i started the ppu program with the spu image, i got an error message saying "OS ERROR: NOT ENOUGH SPACE"; so i looked at the spu image and i've seen that it was 640kb! i tried to delete some functions and compiled using the -O2 flag, but nothing very significative happened... so, just for fun, i tried to strip the image, and i've seen that without the symbol table it was 220kb... in the end, i've compiled with the -s flag, executed the whole program (including the ppu) and everything worked fine.

The question i've got for you now is... is it possible that the compiler adds a symbols table 400kb large? if so, why the hell to do this? thanks a lot for every answer, i'm going to really appreciate it.
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Radamantis



Joined: 14 Apr 2008
Posts: 4
Location: Caserta - Italy

PostPosted: Thu May 15, 2008 6:39 pm    Post subject: Solved! Reply with quote

Thanks for visiting the topic guys, i've fixed the problem.

I noticed that in the fortran code was a write function, that prints to the standard output a message when something goes wrong... deleting it the image is 40kb large. I think that to avoid performing too much dma requests, the spu-gfortran compiler statically includes the whole i/o library.

I'm really sorry for no thinking about it.
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