On Sun, Mar 30, 2008 at 10:25:05PM +0300, Stefan Kost wrote:
> Hi,
Undefined and unused is not the same.
There is NO way to clerify all unused functions in a program.
You could call functions by their addresses and those addresses
could be calculated in runtime. So you don't know...
Something like this...
---<cut>---
int Funk1( void )
{
printf("Funk1\n"); return(0);
}
int Funk2( void )
{
printf("Funk2\n"); return(0);
}
main()
{
int event = -1;
int (* ptrFunk)( void );
printf("Event 1 or 2: ");
fgets( buffer, sizeof( buffer ), stdin );
event = atoi(buffer);
switch(event) {
case 1:
ptrFunk = Funk2;
break;
case 2:
ptrFunk = Funk1;
break;
default:
printf("No function called\n");
}
ptrFunk( );
}
---<cut>---
> nm --undefined-only *.o | cut -c12- | sort | uniq
> would give you a list of all external symbols
>
> nm --defined-only *.o | cut -c12- | sort | uniq
> would give you a list of all defined symbols
>
> now all enties in 2nd list, which are not in first list should be what you
> are
> looking for ('comm' should be able to do that).
>
> Stefan
>
> Dr. Michael J. Chudobiak schrieb:
> > Is there any easy way to identify unused functions in source code, for
> > cruft reduction?
> >
> > Using the -Wall flag identifies unused static functions, which is great,
> > but it misses the non-static ones.
> >
> > - Mike
> >
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list@gnome.org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
>
> _______________________________________________
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> gtk-app-devel-list@gnome.org
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--
Göran Hasse
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