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Re: coping with PT_PHDR not being in loaded segment


At 10:21 11.05.99 , Andreas Schwab wrote:
>Franz Sirl <Franz.Sirl-kernel@lauterbach.com> writes:
>
>|> At 08:59 07.05.99 , Ulrich Drepper wrote:
>|> >Roland McGrath <roland@frob.com> writes:
>|> >
>|> > > I think I agree with Ian's analysis here.  The current libc 
>(elf/dl-load.c)
>|> > > still behaves the way he described for 2.0.7.  If the phdr is not 
>visible
>|> > > in the loaded image, then I think we should make a malloc'd copy to 
>save in
>|> > > the l_phdr pointer.
>|> >
>|> >I've made appropriate changes now.  They'll be in 2.1.1pre3.  But I
>|> >nevertheless think that adding the phdr to a segment is a good idea.
>|> >The phdr is always needed so why not load it?
>|>
>|> Has anyone successfully verified on any platform that the fix works? I
>|> still get the FAIL "FAIL: shared (non PIC, load offset)" in the
>|> ld-testsuite of gas-990418 on powerpc-linux-gnu. But now the testcase
>|> segfaults instead of printing "BUG in dynamic linker".
>
>I think this is a bug in the testsuite.  The linker script elf-offset.ld
>sets the load offset without taking the headers into account, which causes
>the linker to add padding to make it page aligned.  Could you please try
>this patch?

Yes, it works with this patch, I already did this one myself, but Ian 
stated this was the wrong approach and that's why this discussion started 
in the first place.

Franz.



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