[PATCH] D42242: Make libc++abi work with gcc's ARM unwind library

[Marshall Clow via Phabricator via cfe-commits]

mclow.lists created this revision.
mclow.lists added a reviewer: EricWF.
Herald added subscribers: kristof.beyls, aemerson.

See https://bugs.llvm.org/show_bug.cgi?id=35945, which reports that libc++ doesn't build for the Raspberry PI.

The problem is that the exception class is defined as a `char[8]` in that library, rather than `uint64_t`, as in other libraries.
Same size, same values, different type.

Solution: Pull the code to check the exception class into a routine, and memcpy the field into a `uint64_t` and call the routine everywhere we were previously checking directly.


https://reviews.llvm.org/D42242

Files:
  src/cxa_default_handlers.cpp
  src/cxa_exception.cpp
  src/cxa_exception.hpp
  src/cxa_handlers.cpp
  src/cxa_personality.cpp

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