Re: [Gcl-devel] sfasl.c - strange 0x80000 extra bytes per relocation

[Camm Maguire]

Greetings!


"Mike Thomas" <address@hidden> writes:

> Hi all.
> 
> As an experiment on Windows I tried allocating the incoming object file
> space in "sfasl.c" exactly, without the additional 0x80000 bytes and the
> ensuing calculations as follows:
> 
> #ifdef 0
>       the_start = start_address
>             = malloc ( datasize + textsize + bsssize + extra_bss +
> 0x80000 );
>       the_start = start_address = (char *) ( 0x1000 * ( ( ( (int) the_start +
> 0x70000) + 0x1000) / 0x1000 ) );
> #else
>         the_start = start_address
>             = malloc ( datasize + textsize + bsssize + extra_bss );
> #endif
> 
> This resulted in no observable change in the behaviour of my ANSI GCL build
> system other than a decrease in the size of the debug mode executables eg
> saved_ansi_gcl went from 19,025,472 to 18,239,040 bytes post "make install".
> 
> Unless someone can think of some reason for keeping this obscure addition to
> our code (perhaps an alignment issue on some architecture or other?), I vote
> we remove it as shown above ASAP.
> 

Agreed.  Please leave the old in as a comment.  We might also want to
check if/when extra_bss is set.  

> Cheers
> 
> Mike Thomas
> 
> 
> PS Incidentally, pre "make install" the new saved_ansi_gcl.exe was only
> 12,865,088 bytes so it increased in size during "make install" by roughly
> 50% - does this happen on Unix?
> 

Not to my knowledge.  I have a 10.9 M saved_ansi_gcl binary post
installation (I think stripping the binary, standard in Debian
packages, helps a bit, maybe a few percent.)  I think it would be well
worth chasing down where this +50% comes from in the 'make install'.

Take care,

> 
> 
> 
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> 
> 
> 

-- 
Camm Maguire                                            address@hidden
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