Re: CVS commit: src/sys/arch/i386/stand

[David Laight <david%l8s.co.uk@localhost>]

On Fri, May 02, 2014 at 10:22:48AM +0900, Masao Uebayashi wrote:
> Stripping eh_frame using linker script, without adding unusal gcc
> options, looks much simpler as a whole picture to me.

Except that these programs use the default linker script.
So modifing it is difficult.

I don't think the linker has a global option to make the eh_frame
section(s) non-loadable - which ought to allow debuggers to use them
without taking up program memory (for non paged binaries).

> On Fri, May 2, 2014 at 3:37 AM, David Laight <dsl%netbsd.org@localhost> wrote:
> > Module Name:    src
> > Committed By:   dsl
> > Date:           Thu May  1 18:37:26 UTC 2014
> >
> > Modified Files:
> >         src/sys/arch/i386/stand: Makefile.inc
> >
> > Log Message:
> > Add -fno-asynchronous-unwind-tables -fno-exceptions to gcc builds.
> > One of these (probably the first) is needed to stop the eh-frame
> > section being created.
> > The eh_frame section is loadable and bloats the boot images.
> > This might be enough to make pxeboot work.
> >
> >
> > To generate a diff of this commit:
> > cvs rdiff -u -r1.11 -r1.12 src/sys/arch/i386/stand/Makefile.inc
> >
> > Please note that diffs are not public domain; they are subject to the
> > copyright notices on the relevant files.
> >

        David

-- 
David Laight: david%l8s.co.uk@localhost