linker bug 10515

[H.J. Lu]

On Tue, Oct 6, 2009 at 3:29 AM, Alan Modra <amodra@bigpond.net.au> wrote:
> On Tue, Oct 06, 2009 at 10:33:53AM +0100, Nathan Sidwell wrote:
>> Alan Modra wrote:
>>
>>> No.  I think you should just check PT_LOAD headers.  That would allow
>>> various non-load headers to appear first if anyone so desires
>>> (eg. PT_PHDR, PT_INTERP).  It would also simplify the documentation
>>> and error message.
>>
>> do you mean that only the first PT_LOAD segment can have headers, and no
>> subsequent PT_LOAD headers?  Please clarify
>
> Yes.  You would need overlapping PT_LOAD segments if more than one
> could have PHDRS.  I suppose that would be possible with overlays but
> I doubt the existing code supports it.
>

FYI, Linux ia64 kernel does use it:

http://www.sourceware.org/bugzilla/show_bug.cgi?id=10744

Can we allow FILEHDRS/PHDRS if the previous segment has the same
headers?

Thanks.


-- 
H.J.