[libcxxabi][PATCH] unwinder

[David Fang]

Nick,

> On Oct 7, 2013, at 7:38 PM, David Fang wrote:
>> Hi Nick,
>> 	Thanks for the libunwind commit!
>> 	Would it be possible to also include "mach-o/dyld_priv.h" as well? It is referenced by src/Unwind/AddressSpace.hpp.  I have a copy of that header from a 2009 distribution of cctools.
>> 	(I'm still building on powerpc-darwin8.)

> Having that header is not going to help.  The header declarations a 
> function in libSystem.dylib which the unwinder calls to get the address 
> of the __eh_frame for a given pc.  That function is not in the darwin8 
> libSystem.  We'll need to write an equivalent using dladdr() and 
> getsectiondata() for older MacOSX versions.

 	What is the name of that function (where it is available)?  Would 
something like this be available somewhere in LLVM?

Fang

-- 
David Fang
http://www.csl.cornell.edu/~fang/