[Gc] Re: [PATCH] Dealing with `.data.rel.ro'
ludo at gnu.org
Tue Mar 3 14:38:22 PST 2009
"Boehm, Hans" <hans.boehm at hp.com> writes:
> Did you encounter problems without the overlap checking for exclusion
Yes. As mentioned in the comment added by the patch, the address range
covered by the `PT_GNU_RELRO' entry is a subset of a previously
encountered `LOAD' segment, so it needs to be excluded. It's easy to
notice with readelf(1) (see
We could add a test here that would build a shared library with "-z
relro" when using GNU ld. We could arrange so that this test is only
run on GNU systems.
> 1) I think this only handles a partial overlap with exactly one other
> range. I don't immediately see why it's more important to handle that
> case than overlaps withmultiple existing exclusion ranges.
Exclusion ranges cannot overlap. This is enforced in
> 2) This only works if the ranges are added in the right order.
Hmm, what do you mean?
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