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Re: Linker script using INSERT AFTER
On Tue, Oct 27, 2009 at 09:56:34AM +1030, Alan Modra wrote:
> > Anyway, since I though that it isn't necessary to add an empty section (if
> > __start___markers isnt' there I know that the section will be empty anyway) I
> > thought that I can live with the following:
> >
> > SECTIONS
> > {
> > PROVIDE_HIDDEN(__start___markers = .);
> > PROVIDE_HIDDEN(__stop___markers = .);
> >
> > PROVIDE_HIDDEN(__start___tracepoints = .);
> > PROVIDE_HIDDEN(__stop___tracepoints = .);
> > }
> > INSERT AFTER .data;
> >
> > That actually works, but it seems to override the hidden symbol that comes
> > with on of the objects to link with. Somehow I think this isn't correct due to
> > the description of PROVIDE_HIDDEN().
>
> PROVIDE and PROVIDE_HIDDEN should only provide definitions for
> undefined or common symbols. Perhaps you have one of the latter?
Is the symbol being overridden really in one of the input files? Or
is it linker created from a section named "__markers"? Maybe the
section symbols are being generated by ld after PROVIDE_HIDDEN is
processed.
--
Daniel Jacobowitz
CodeSourcery