-ffunction-sections, -fdata-sections and -Wl,--gc-sections

[Justin Hibbits]

On Sep 17, 2013 4:31 PM, "Adrian Chadd" <adrian at freebsd.org> wrote:
>
> On 17 September 2013 16:22, Ian Lepore <ian at freebsd.org> wrote:
>
> > On Tue, 2013-09-17 at 14:56 -0700, Adrian Chadd wrote:
> > > ... I'd rather see if we can actually separate out things some more so
> > > these builds can shrink.
> > >
> > > Eg, if there's malloc related functions that aren't used, maybe we
should
> > > break malloc down into a directory full of functions.
> > >
> >
> > Why is that better than using this automated solution?
> >
>
> Not everyone is going to run clang on their target development platform?
:-)
>
> Personally I'd rather structure my work to behave better instead of doing
> something that relies on a specific tool/suite to be able to optimise.
>

Gcc also supports this. I used it when generating builds with newlib for
microcontrollers at a previous job.

-Justin