Re: question about ordering .rela sections on Itanium

[Andreas Schwab]

address@hidden (Alan Modra) writes:

|> On Wed, Jun 05, 2002 at 04:16:00PM -0700, Lowney, Geoff wrote:
|> > Depending on where I place the statement in the the
|> > linker script, the relocations may be placed such that they are
|> > ignored by the program loader.  Is this expected behavior?
|> 
|> No, that's weird, unless there's something about the ia66 ELF format
|> that requires one set of relocs be applied before others can be done
|> correctly.  I don't know enough about ia64 to know whether this is
|> the case, but it's true on other targets.  eg. powerpc64 ld.so needs
|> to relocate the .opd section before applying .plt relocs as the .plt
|> relocs copy .opd section data.

PLT relocation usually are handled specially (to support lazy binding).
Thus they must go into their own section in the output file, and the
dynamic linker expects to find only PLT relocations there.  If you put any
other relocation section after it, it will be marked as if belonging to
the PLT relocations, and thinks will break.  The ia64 is not special in
this regard.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
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