[LLVMdev] [RuntimeDyld] Heads up non-X86 RuntimeDyldELF users

[Lang Hames]

This issue has been lurking for a long time, it's really great to see it getting fixed. Thanks very much Keno!

RuntimeDyldELF target maintainers: If you see failures related to this patch, providing a RuntimeDyldChecker regression test will be a huge help in tracking down the issue. See test/ExecutionEngine/RuntimeDyld/* for examples of how to write these, or ping me on the lists or IRC.

Cheers,
Lang.

> On Apr 15, 2015, at 5:01 PM, Keno Fischer <kfischer at college.harvard.edu> wrote:
> 
> This is a heads up for those of you using RuntimeDyldELF (directly or indirectly through e.g. MCJIT) on targets other than X86. 
> I have just committed http://reviews.llvm.org/rL235060.
> 
> This commit changes the way that relocations work internally 
> on a number of platforms with the goal of allowing us to free the 
> unrelocated object file earlier. It should not in general change the observed
> behavior.
> 
> I have tested this on X86. Other platforms represent my best understanding
> of how those relocations should work, but I may have missed something because
> I do not have access to those platforms. If you're using RuntimeDyldELF and are seeing failures after the above commit, please let us know so we can get them sorted out.
> 
> We will keep the current ugly workarounds in place for a couple of days, so this commit
> can be reverted if it breaks the bots.
> 
> Keno
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