[LLVMdev] RTTI handling

[Garrison Venn]

LLVM does not use RTTI--it has its own mechanisms; see llvm/include/llvm/Support/Casting.h, and by default it is turning off for an LLVM build.

Garrison

On Sep 30, 2011, at 12:15, Somorjai, Akos wrote:

> Hello all,
> 
> I was wondering how llvm and clang handles the RTTI shared libraries issue mentioned here: http://gcc.gnu.org/faq.html#dso
> 
> Is it using name or address comparison?
> 
> We have an architecture with several frameworks and plug-ins; some of the latter are being loaded and unloaded runtime.
> In the past that issue caused crashes in our app, so at the moment we are overriding __dynamic_cast to detect this problem, but that's kind of messy. I'm hoping for a better solution with llvm…
> 
> (Mac OS X 10.6/10.7, clang 3.0)
> 
> Thanks,
> Ákos Somorjai
> Developer Support Manager
> 
> GRAPHISOFT | Graphisoft Park 1. Budapest 1031 Hungary | +36 1 437-3000 | asomorjai at graphisoft.com
> 
> 
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