Compiler: Size of generated executable file
Walter Bright
newshound1 at digitalmars.com
Mon Jan 11 17:59:46 PST 2010
retard wrote:
> Just looking at the executable size (when compiled with dmc, the latter
> program is 30 kB and the first one is ~40 kB) makes it pretty clear that
> dmc/optlink does not optimize this.
Yes, it does, if you use the -Nc (function level linking) switch when
compiling. dmd puts functions in COMDATs by default. Some older C
programs require that the layout of functions in memory match their
appearance in the source file, hence dmc doesn't do that by default.
http://www.digitalmars.com/ctg/sc.html#dashCapNc
> Unfortunately I'm
> not buying a windows / full dmc license to be able to objdump the
> executable so it's a bit hard to see what's inside it.
You can get OBJ2ASM for $15 as part of the Extended Utility Package. I
think it's worth every penny!
http://www.digitalmars.com/shop.html
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