Re: [ binutils / gprof ] problems with file format

[Nick Clifton]

Hi Christophe,

> Here are the tests I did:
> I used binutils 2.15.
> 1) I compiled libiberty, bfd and gprof on a sparc-solaris system and did 
> the same on a i686-pc
> 2) I compiled the program to be tested for i486 and run it on a i486-pc.
> 3.a) I executed gprof on the i686-pc "gprof --file-format=magic my_file" 
> -> OK no prob; this works normally.
> 3.b) I did the same on the sparc "gprof --file-format=magic my_file" and 
> received this message:
>     "gmon.out: Error 0"

I suspect that this is an endian-ness problem.  x86's are little endian 
and sparcs big endian (by default anyway).  So your gmon.out file is 
being produced on a little endian i486 pc and the gprof on the sparc is 
expecting a big-endian input file.

Try producing the gmon.out file on your sparc system and I think that 
you will find that it works.

Cheers
  Nick